Nailor COMBINATION FIRE/SMOKE … FIRE/SMOKE DAMPERS Contents ... smoke management for both static and dynamic HVAC systems. Nailor’s 1220 Series utilizes an …

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NailorIndustries Inc.

COMBINATION FIRE/SMOKE DAMPERS

ContentsPage No.

Product Overview G3

Airfoil Blade Combination Fire & Smoke DampersModel Series 1220 • 1 1/2 Hr. Label G6Model Series 1220-3 • 3 Hr. Label G6Model Series 1221-OW • Out of Wall Mounting • 1 1/2 Hr. Label G12Model Series 1221G • Integral Sleeve for Grilles • 1 1/2 Hr. Label G16Model Series 1220M • Modulating (Volume Control) • 1 1/2 Hr. Label G19Model Series 1220M-3 • Modulating (Volume Control) • 3 Hr. Label G19Model Series 1220VB • Vertical Blade • 1 1/2 Hr. Label G23

Vee-Blade Combination Fire & Smoke DampersModel Series 1270 • 1 1/2 Hr. Label G28

Corridor Combination Fire & Smoke DampersModel Series 1221C-1 • 1 Hr. Label G32Model Series 1221C-2 • 1 Hr. Label G32Model Series 1271C-1 • 1 Hr. Label G36Model Series 1271C-2 • 1 Hr. Label G36

Round Combination Fire & Smoke DampersModel Series 1290FS • 1 1/2 Hr. Label G40

Damper Control PanelsDCP1 Toggle Switch with Lights G43DCP2 Key Switch with Lights G44DCP3 Lights Only G45DCP4 Test Switch with Lights G46

Options & VariablesClosure DevicesElectric Resettable Link (ERL) G47Pnematic Replaceable Link (PRL) G47MLS-400 Fire Sensor Reopenable Controls (ML4) G48Closure TemperaturesERL/PRL Temperature Ratings G50MLS-400 Fire Sensor High/Low Temperature Ratings (HL) G50Position IndicatorsMLS-300 Switch Pack G51Electro-Pneumatic SwitchesEP1/EP2 Switches G53Retaining AnglesQS1/QS2 ‘Quick-Set’ Retaining Angles G54Sleeves or Side Mounting PlateType A Sleeves G55SMP Side Mounting Plate G55Flanged SleeveTDF1/TDF2 TDF Flanges G56Damper Test SwitchDTS Push Button Test Switch G57

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GENERAL PRODUCT OVERVIEWAs today’s modern commercial and industrial building construction becomes increasingly life safety oriented, fire containmentand active smoke management systems are being utilized to a higher degree as more sophisticated technology is developedand implemented into building codes. The development process begins with the understanding of fire and smoke behaviorthrough the research and study of real life emergency situations, and culminates in the design, testing of, and ultimate use ofnew products to better control and manage the ravages of fire and smoke. Thus, resulting property damage is minimized andoccupant safety is maximized. Nailor Industries commitment to the development of new and existing fire and smoke controltechnology has resulted in a comprehensive line of premium quality smoke, fire and combination fire/smoke dampers andaccessories, available at a reasonable cost and in a timely fashion.

Model 1221

Model 1221-OW

Model 1221G

MODEL 1221-OWCOMBINATION FIRE/SMOKE DAMPER AIRFOIL BLADE • OUT OF WALL MOUNTINGModel 1221-OW is an "out of wall" high performancecombination fire/smoke damper specifically designed forsupply or return ducts that terminate at a grille. The designallows for through the grille access to the damper, actuator andother components. It is perfect for applications where buildingcodes require both a fire damper for the protection of ductpenetrations in walls or floors that have a fire resistance ratingof 2 hours or less and also require a leakage rated damper foroperational smoke control in static or dynamic smokemanagement systems. It features Nailor’s unique inter-lockingdouble skin airfoil blade design that eliminates combustibleseals and provides flame and smoke seal under fire conditionsat temperatures up to 2000°F!

Revised April 29, 2005

MODEL SERIES 1220 AND 1220-3 COMBINATION FIRE/SMOKE DAMPER AIRFOIL BLADE • PREMIUM PERFORMANCEModel Series 1220 provides the ultimate in fire containmentand smoke management for both static and dynamic HVACsystems. It utilizes an innovative inter-locking double-skinairfoil blade design that eliminates the need for blade sealswhich burn out during fire conditions. Ideal for use wherebuilding codes require both a fire damper to protect ductworkpenetrations in fire separations and a leakage rated damperfor use in smoke management systems, it is available withLeakage Class I or II at 250°F or 350°F. Features includeairfoil blade design and maintenance free concealed bladelinkage for extremely low pressure drop and minimalturbulence and noise.

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MODEL 1221GCOMBINATION FIRE/SMOKE DAMPERAIRFOIL BLADE • FOR GRILLE MOUNTINGModel 1221G is a high performance combination fire/smokedamper specifically designed for supply or return ducts thatteminate at a grille. The special factory sleeve with unique3/4” (19) grille mounting flanges simplifies installation, saveson field labor and eliminates the requirements for unsightlyfront retaining angles which commonly protrude from behindthe grill. Steel grille with correctly located countersunkscrewholes is available from Nailor and installs over andcompletely hides the mounting flanges. The damper is offsetin the sleeve to accomodate a single or double deflectionsupply air grille, single deflection supply air register or areturn air grille or register.


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Model 1270

Model 1221C-1


MODELS 1221C-1, 1221C-2TUNNEL CORRIDOR COMBINATION FIRE/SMOKEDAMPER • AIRFOIL BLADEModels 1221C-1 and 1221C-2 Airfoil Blade Tunnel CorridorCombination Fire/Smoke Dampers are for use whereductwork penetrates the ceiling of an interior corridor of abuilding, creating a horizontal opening that requiresprotection. Model 1221C-1 is suitable for use with a steelgrille or diffuser when the duct terminates at the ceiling.Model 1221C-2 is suitable for use when the duct is requiredto continue down past the ceiling level. Each unit is suppliedfactory mounted in a suitable sleeve complete with upperretaining angles.

MODELS 1271C-1, 1271C-2TUNNEL CORRIDOR COMBINATION FIRE/SMOKEDAMPER Models 1271C-1 and 1271C-2 Tunnel CorridorCombination Fire/Smoke Dampers are for use whereductwork penetrates the ceiling of an interior corridorof a building, creating a horizontal opening thatrequires protection. Model 1271C-1 is suitable for usewith a steel grille or diffuser when the duct terminatesat the ceiling. Model 1271C-2 is suitable for use whenthe duct is required to continue down past the ceilinglevel. Each unit is supplied factory mounted in asuitable sleeve complete with upper retaining angles.

MODEL SERIES 1270COMBINATION FIRE/SMOKE DAMPER The 1270 combination fire/smoke damper, with sturdytriple-vee style blades and a rugged mitered corner hatchannel frame design that virtually eliminates racking,provides 1 1/2 hour UL labeled fire protection suitable foruse where ductwork penetrates a wall or floor with a fireresistance rating of 2 hours or less. The 1270 Series isalso UL tested and labeled for use as a Class I through IIILeakage Rated Damper for smoke control applications inboth static or dynamic HVAC system designs. Availablewith factory fitted sleeve (Model 1271), and a variety ofactuators and options to suit each application, the 1270series is a versatile and economical performer suitable formost commercial applications.

Model 1271C-1

GENERAL PRODUCT OVERVIEW


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Model 1290FS

MODEL 1290FSCOMBINATION FIRE/SMOKE DAMPER Nailor’s true round combination fire and smoke damper,Model 1290FS, is ideal for applications where buildingcodes require both a fire damper to protect air systempenetrations in walls or floors that have a fire resistancerating of up to 2 hours and also require a leakage rateddamper for operational smoke control in static or dynamicsmoke management systems. It is an economical trueround combination fire/smoke damper designed andqualified for round ductwork passing through metaldrywall partitions or masonry walls. Features of thedamper include a sturdy beaded casing for superiorrigidity and factory supplied retaining plates for fast,secure installation. The 1290FS offers the lowest leakageclass available and is approved for vertical or horizontalinstallation.

GENERAL PRODUCT OVERVIEW

www.nai lor.com

• PREMIUM PERFORMANCE• ULTRA-LOW LEAKAGE• AIRFOIL BLADE• UL 555 CLASSIFIED

DYNAMIC FIRE DAMPER• UL 555S SMOKE DAMPER

MODELS: 1220 1 1/2 HR LABEL1220-3 3 HR LABEL

AIRFOIL BLADE FIRE/SMOKE DAMPERS

Nailor’s 1220 Series combination fire/smoke damper, also known as "The Wall", provides the ultimate in fire containment andsmoke management for both static and dynamic HVAC systems. Nailor’s 1220 Series utilizes an innovative inter-locking double-skin airfoil blade design that eliminates the need for blade seals which burn out during fire conditions. Ideal for use where buildingcodes require both a fire damper to protect ductwork penetrations in fire separations and a leakage rated damper for use in smokemanagement systems, the 1220 Series is available with Leakage Class I or II at 250°F or 350°F. Features include airfoil bladedesign and maintenance free concealed blade linkage for extremely low pressure drop and minimal turbulence and noise. Ruggedhat-channel frame is reinforced with die-formed corner gussets for superior strength.

CONSTRUCTION DETAILS:FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat channel.BLADES: 14 ga. (2.0) equivalent galvanized steel formed airfoil on 5 1/2"

(140) centers. Opposed action.LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.AXLES: 1/2" (13) dia. plated steel double bolted to blades.JACKSHAFT: 1/2" (13) dia. cadmium plated steel.JAMB SEALS: Stainless Steel.HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE): 250°F (121°C)standard. 165°F (74°C), 212°F (100°C) and, with ERL only, 350°F (176°C) available.ERL (Electric Resettable Link) is standard on all dampers with electric actuators. PRL(Pneumatic Replaceable Link) is standard on all dampers with pneumatic actuators.

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QUALIFICATIONS:● UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper - 1 1/2 & 3 hr. Labels.● UL 555S Classified Smoke Damper, Leakage Class I or II at 250°F or 350°F.● California State Fire Marshall: Fire Damper Listing #3225-0936-112.● Meets NFPA 90A, NFPA 92A, IBC and NBC (Canada) requirements.● British/European Standards 10294 and 1366. ISO Standard 10294. Fire Dampers.

4 hr. fire test. Classification ES 240.● City of New York MEA #119-00-M● Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa) (up to 4000 fpm @ 8"

w.g. with size and actuator limitations).

AIRFOIL

MODEL 1220 1 1/2 HOUR LABELMODEL 1220-3 3 HOUR LABEL

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AMCA

LICENSED

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MODEL 1220 (1 1/2 HR. LABEL) MODEL 1220-3 (3 HR. LABEL)MIN. DUCT MIN. DUCTSIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203); SIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203).

8" x 6" (203 x 152) with low profile frame (max size 18" x 6").

MAX. DUCT MAX. DUCTSIZE: Single Section SIZE: Single Section

Vertical mount: 36" x 48" (914 x 1219). Vertical mount: 36" x 48" (914 x 1219).Horizontal mount: 32" x 48" (813 x 1219). Horizontal mount: 32" x 48" (813 x 1219).

Multiple Section Assembly Multiple Section Assemblies are not permitted.Vertical mount: 144" x 96" (3658 x 2438).Horizontal mount: 128" x 96" (3251 x 2438).

Model 1220

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SOPTIONS:• Factory supplied sleeve: Available from 10 to 20 ga. (3.5

to 1.0) and in various lengths to suit wall/floor thickness. Sleeve and damper are caulked at the factory to helpensure field compliance with UL installation requirementsand to meet UL leakage performance. Standard sleeve is 16" x 20 ga. (406 x 1.0) for dampersup to 84" (2134) in width and 18 ga. (1.2) for widerassemblies in accordance with SMACNA requirementsfor duct construction.

• A comprehensive range of UL qualified electric orpneumatic actuators.

• MLS-300 Position Indicator Switchpack: Provides theability to remotely indicate damper blade position.

• MLS-400 ‘Fire Sensor’: A reopenable control systemwhich provides the ability to override fire induced closurefrom a remote fire control station and permit controlledoperation in a dynamic smoke management system.

• ‘Quick-set’ Retaining Angles: Completes the installationpackage. Sized to fit and shipped with each damper.

‘THE WALL’ PRINCIPLE:Low leakage fire/smoke damperscommonly incorporate a synthetic blade-to-blade seal in order to maintain theirleakage class under elevated temperatureconditions – the smoke control mode.The weakness until now has been thatwhen the damper is subjected to a firecondition the seals burn out. This permitssignificant leakage! In fact, UL 555Standard permits gaps between thedamper blades of up to 3/4" (19) duringthe fire test, thus allowing significantquantities of smoke to pass through aclosed damper under fire conditions.Nailor's model 1220, known as “TheWall”, provides an innovative inter-lockingdouble-skin airfoil blade which eliminatesthe need for seals to maintain a completebarrier throughout the fire test withabsolutely no visible through gaps.In fact, when this design was recentlytested to ISO Standard 10294-1, itmaintained its cold leakage ratingthroughout a 4 hour fire test attemperatures up to 2000°F (1093°C).Amazingly, “The Wall” gets tighter as itgets hotter!The 1220 Series Dampers are ideal for applications where building codes require both a fire damper for the protection ofductwork penetrations in walls or floors that have a fire resistance rating of up to 4 hours and also require a leakage rateddamper for operational smoke control in static or dynamic smoke management systems.The 1220 Series has been specially designed and tested to offer premium performance with the lowest leakage class availableand a low pressure drop well suited to the majority of commercial applications.

WHEN IT COMES TO FIRE / SMOKE DAMPERS, MODEL 1220 ‘THE WALL’ PROVIDES THE ULTIMATE CLOSURE!

FEATURES:• Airfoil blade, double-skin design, provides extremely

low pressure drop for optimal system performance.• Unique interlocking blade design eliminates the need

for seals, maintaining leakage class under fireconditions.

• Largest UL listing in the industry at 96 sq. ft. (8.9 sq.m) eliminates the need for costly mullions in mostapplications.

• Heat responsive device provides controlled closureby the actuator, eliminating instantaneous damperclosure that can damage ductwork.

• Out of airstream linkage is maintenance free andprevents unwanted turbulence and noise.

• Each blade includes "no-slip" double bolting onto theaxle to provide positive locking connection.

• Rugged hat channel frame design is reinforced withdie-formed corner gussets for superior strength.

THE LARGEST UL LISTING IN THE INDUSTRY!Photograph of actual UL 555 fire test conducted successfully at Underwriters Laboratories Inc.,Northbrook Illinois. The largest multi-blade fire damper listing established to date (June 1999).

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Model Series 1220 (1 1/2 Hr. Label) dampers with duct heights less than 6" (152) (8" [203] if width is over18" [457]) or Model Series 1220-3 (3 Hr. Label) with duct heights less than 8" (203) require a Type ‘B’ sleeveenclosure (Model 1222/1222-3). Duct sizes less than 8" (203) in width require a Type ‘C’ enclosure (Model1223/1223-3).

Min. Duct Size: 8" x 4" (203 x 102) (Overall damper height is 8" (203) [6"(152) on duct sizes 18" x 5 1/2" ((457 x 140) and under (1 1/2 Hr. Label Only)].

Max. Duct Size: Single SectionVertical mount: 36" x 7 1/2" (914 x 191).Horizontal mount: 32" x 7 1/2" (813 x 191).

Multiple Section Assembly Model 1222Vertical mount: 144" x 7 1/2" (3658 x 191).Horizontal mount: 128" x 7 1/2" (3251 x 191).

Multiple Section Assembly Model 1222-3Multiple Section Assemblies are not permitted.

Min. Duct Size: Vertical or Horizontal mount: 4" (102) diameter.(Overall damper size is 8" x 6" (203 x 152) (1 1/2 Hr. Label only); 8" x 8" (203x 203) min. for duct sizes over 4" (102) dia.)

Max. Duct Size: Single SectionVertical mount: 34" (864) diameter.Horizontal mount: 30" (762) diameter.

Multiple Section Assembly Model 1223Vertical or Horizontal mount: 94" (2388) diameter.

Multiple Section Assembly Model 1223-3Multiple Section Assemblies are not permitted.

Min. Duct Size: Vertical or Horizontal mount: 4" x 4" (102 x 102).(Overall damper width is 8" minimum; minimum overall height is 6" (152) (1 1/2 Hr. Label only) [8" (203) for duct sizes over 16" x 4" (406 x 102)].

Max. Duct Size: Single SectionVertical mount: 34" x 46" (864 x 1168).Horizontal mount: 30" x 46" (762 x 1168).

Multiple Section Assembly Model 1223Vertical mount: 142" x 94" (3607 x 2388).Horizontal mount: 126" x 94" (3200 x 2388).

Multiple Section Assembly Model 1223-3

Multiple Section Assemblies are not permitted.

8" (203)

ACTUATOR(LOCATIONMAY VARY)

SLEEVE

DAMPER

16" (406) STANDARD

'B'ENCLOSUREBOTH ENDS

5" (127)

'C' ENCLOSURE BOTH ENDS

D –1/8" (3)

(D –1/4" (6)OVER

36"(914))

16" (406) STANDARD

5" (127)8" (203)STANDARD

JACKSHAFT

ACTUATOR(LOCATION MAY VARY)

SLEEVE

DAMPER

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6" (152)OR

8" (203)OVERALL(SEE MIN.

DUCT SIZE)

H =NOM.DUCTSIZE

W = NOM. DUCT SIZE

W + 2" (51)

W

H

H+2"

(51)

W = NOM. DUCT SIZEW + 2" (51)

H =NOM.DUCTSIZE

H+2"

(51)

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Wall MinimumThickness Sleeve/

EnclosureLength

4 (102) 16 (406)

8 (203) 20 (508)

12 (305) 24 (610)

16 (406) 28 (711)


8" (203)

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5" (127)

WITH TYPE A SLEEVE: MODELS 1221 / 1221-3 TYPE B SLEEVE ENCLOSURE: MODELS 1222 / 1222-3

STYLE CR : FOR ROUND DUCT STYLE CO : FOR OVAL DUCT STYLE CSR : FOR SQUARE ORRECTANGULAR DUCT

Standard factory sleeve(caulked to UL requirements)16" long x 20 ga. (406 x 1.0)(18 ga. (1.3) for dampers over84" (2134) in width). Availableup to 36" (914) dependentupon wall thickness and 10through 20 ga. (3.5 - 1.0).

* 6" (152) or 8" (203) min. (See Min. Duct size)

TYPE C SLEEVE ENCLOSURES:MODELS 1223 / 1223-3

D + 2" (51)

D =NOM.DUCTDIA.

D+2"

(51)

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***6" (152) or

8" (203) min. (See Min. Duct size)

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ACCAT APRIL 2005

MODELS: 1220 1 1/2 HOUR LABEL1220-3 3 HOUR LABEL

PERFORMANCE DATA:LEAKAGE CLASS: The 1220 Series Combination Fire/Smoke Damper has beendesigned and qualified under UL 555S in order to providemaximum system design flexibility. They are available with aClass I (currently the lowest available) or Class II leakagerating with all damper/actuator assemblies having beentested successfully at an elevated temperature of 250°F(121°C) or 350°F (176°C), depending on actuator, underairflow of 2000 fpm (10 m/s) at 4" w.g. (0.995 kPa). The 1220Series has also qualified under extended testing to 4000 fpm(20 m/s) at 8" w.g. (2 kPa), but with size and actuatorrestrictions.

The criteria for selection should be based upon both first costconsideration and the maximum total acceptable leakage ofall closed dampers in the smoke management system whenin the smoke control mode. This will have an influence on fanselection and capacity requirement.

LeakageMaximum Leakage

Classcfm/ft2 (m3/s/m2)

@ 1" w.g. @ 4" w.g.(0.249 kPa) (0.995 kPa)

I 4 (0.020) 8 (0.041)

II 10 (0.051) 20 (0.102)

PRESSUREVELOCITYDROPfpm (m/s)

in. w.g. (Pa)

542 (2.75) .03 (7)

996 (5.06) .09 (22)

2004 (10.18) .36 (89)

3010 (15.29) .83 (206)

3950 (20.07) 1.42 (353)


in. w.g. (Pa)

807 (4.10) .02 (5)

1243 (6.32) .05 (12)

1940 (9.86) .11 (27)

3071 (15.60) .28 (70)

4327 (21.98) .56 (139)

Size: 12 x 12 (305 x 305) Size: 24 x 24 (610 x 610)


in. w.g. (Pa)

718 (3.65) .04 (10)

1018 (5.18) .07 (17)

1949 (9.90) .24 (60)

3084 (15.67) .61 (152)

4355 (22.12) 1.22 (303)


in. w.g. (Pa)

720 (3.66) .03 (7)

1620 (8.23) .17 (42)

2039 (10.36) .26 (65)

2918 (14.83) .54 (134)

3957 (20.10) 1.00 (249)

Size: 48 x 12 (1219 x 305)

Size: 12 x 48 (305 x 1219)


in. w.g. (Pa)

849 (4.31) .02 (5)

1378 (7.00) .06 (15)

2045 (10.39) .13 (32)

2988 (15.18) .28 (70)

3984 (20.24) .50 (124)

Size: 36 x 36 (914 x 914)

Nailor Industries Inc. certifies that the Models1220 and 1220-3 Dampers shown herein arelicensed to bear the AMCA seal. The ratingsshown are based on tests and proceduresperformed in accordance with AMCA Publication511 and comply with the requirements of theAMCA Certified Ratings Program. The AMCACertified Ratings Seal applies to airperformance ratings only.

300(1.50)

700(3.56)

1000(5.08)

2000(10.16)

3000(15.24)

6000(30.48)

Air Velocity in feet per minute (m/s)

.01(2.5)

.2(50.0)

.02(5.0)

.03(7.5)

.1(25.0)

.04(10.0)

.08(20.0)

.05(12.5)

.06(15.0)

2.0(175.0)

1.5(262.5)

1.0(250)

.8(200)

.6

.5(150)

(125.0).4

(100.0)

.3(75.0)

Sta

tic

Pre

ssu

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rop

in in

ches

w.g

. (P

a)

500(2.54)

12 x

1248

x 12

36 x

3624

x 24

12 x

48

Pressure drop tested per AMCA Standard 500-D-98, Figure 5.3. Data corrected to standard air density of 0.075 lbs/ ft.3.

PRESSURE DROP:

Revised May3, 2005


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MODELS: 1220 / 1221 / 1222 / 1223 (1-1/2 HOUR LABEL)1220-3 / 1221-3 / 1222-3 / 1223-3 (3 HOUR LABEL)

VARIABLES / ACCESSORIESVARIABLES: CODE DESCRIPTIONMOUNTING: V Vertical Mount (wall)

H Horizontal Mount (floor)

LEAKAGE / ELEV. TEMP. 125 Class I @ 250°FRATINGS: 135 Class I @ 350°F

225 Class II @ 250°F235 Class II @ 350°F

CLOSURE DEVICE: ERL Electric Resettable LinkML4 MLS-400 Fire Sensor

Reopenable Control SystemPRL Pneumatic Replaceable Link

CLOSURE TEMPERATURE: 165 165˚F (74˚C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=250°F or 350°F/Low=165°F

SLEEVE LENGTH/GAUGE: Specify Sleeve Length: 12" (305) to 36" (914).Specify Sleeve Gauge: 20G, 18G, 16G, 14G, 10G

ACTUATORS: A wide selection of U.L. tested and approved actuators are available. Contact yourrepresentative for further assistance.

ACTUATOR MOUNTING: EXT External Mount

INT Internal Mount

ACTUATOR LOCATION: RH Right-Hand MountLH Left-Hand MountMH Multi-Hand Mount

FAIL POSITION: CL Damper to Fail ClosedDAMPER LOCATION L8 8" (204) from Sleeve EndIN SLEEVE: L0 Specify Dimension from Sleeve End

IF MODEL 1223 IS SELECTED, CR Round Type C TransitionsSPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions

CSR Square/Rect. Type C Transitions

ACCESSORIES: CODE DESCRIPTION

POSITION INDICATOR: 300 MLS-300 Switch Pack

E.P. SWITCH: EPI 120V Siemens 2651008EP2 24V Siemens 2651007

MOTOR MTG. PLATE: SMP Side Mounting Plate (required for mounting of actuator without sleeve)

RETAINING ANGLES: QS1 One "Quick Set" retaining angleQS2 Set of two “Quick Set” retaining angles

FLANGED SLEEVE: TDF1 TDF Flange on One EndTDF2 TDF Flange on Both Ends

DAMPER TEST SWITCH: DTS Pushbutton Test Switch

DUCT SMOKE DETECTOR: DSDL Low-Flow with TubeDSDN No-Flow

COMBINATION FIRE / SMOKE DAMPERS

MODELS: 1-1/2 HOUR LABEL 1220 / 1221 / 1222 / 12233 HOUR LABEL 1220-3 / 1221-3 / 1222-3 / 1223-3

HOW TO ORDER: Select model number and size, then select from each variable. Choose accessories as desired.See previous page for description of variables and accessories.

Notes: 1. * One MLS-400 or MLS-300 required per assembly. (MLS-300 is included as part of MLS-400 package.)2. * * Maximum closure temperature allowed is equal to elevated temperature rating. HL (high/low

closure temps.) must be selected when MLS-400 is selected as closure device.3. * * * Standard sleeve is 16" (406) long (suitable for 4" (102) thick wall) x 20 ga. (1.0).


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1220 ie: 36" x 24" V 125 ERL 165 20G EXT RH CL L8 CR 3001221 or H 135 ML4 212 18G INT LH L0 CO EP11222 18" dia. 225 PRL 250 16G MH CSR EP21223 235 350 14G SMP1220-3 HL 10G QS11221-3 QS21222-3 TDF11223-3 TDF2

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SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Combination Fire/Smoke Dampers meeting or exceeding the followingcriteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforced with die-formed cornergussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed double skin, airfoil design, on 5 1/2" (140) centers.Dampers shall be of opposed blade configuration with an interlocking blade design that provides complete flame and smoke sealunder fire conditions at an elevated temperature of 2000°F (1093°C) when in closed position. Dampers requiring blade seals tomaintain leakage class when under elevated temperature conditions are not acceptable. Blade axles shall be plated steel, doublebolted at each end of blade to provide positive locking connection. Hex or square friction-fit, or press-fit axles are not acceptable.Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be zero-maintenance, concealed in frame, out of airstream.Jamb seals shall be compression-type stainless steel.Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriter's Laboratories andlabeled as a 1 1/2 or 3 hour, (specifier select one), Fire Damper under UL 555, and as a Class I or Class II (specifier select one)Smoke Damper under UL 555S at an elevated temperature of 250°F (121°C) or 350°F (177°C) (specifier select one) for use indynamic or static Smoke Control Systems. Dampers shall be supplied with factory installed sleeves of minimum 16" (406) length andshall be field verified by contractor, dependent on wall thickness. Factory sleeves shall be caulked to UL requirements and shall be20 ga. (1.0) through 84" (2134) wide, and 18 ga (1.2) above 84" (2134) wide. Appropriate electric or pneumatic actuators (specifier select one) shall be installed by the damper manufacturer in the factory andshall have been tested and classified under UL 555S with the damper at an elevated temperature of 250°F (121°C) or 350°F (177°C).Actuators shall incorporate an OEM internal spring return mechanism. External after-market spring mechanisms are not acceptable. Each damper shall be equipped with a UL Classified heat responsive device that will cause the damper to close in a controlled mannerand lock in a closed position by means of an over center/knee lock linkage, when the duct temperature reaches the maximumdegradation temperature of the damper/actuator assembly as required by UL 555S. Closure devices that cause instantaneous closureare not acceptable. Submitted pressure drop data to be based on tests in accordance with AMCA Standard 500-D and shalldemonstrate a maximum pressure drop of .02" w.g. @ 849 fpm (5 Pa @ 4.3 m/s) across a 36" x 36" (914 x 914) damper. Dampersmust comply with the requirements of AMCA 511 Certified Ratings Program and be qualified to bear the AMCA Seal for AirPerformance. Standard of acceptance: Nailor Industries Model 1220 (1 1/2 hour rating) or Model 1220-3 (3 hour rating).

Revised December 9, 2004

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• “OUT OF WALL” MOUNTING

• ULTRA LOW LEAKAGE• AIRFOIL BLADE• UL 555 CLASSIFIED


MODEL: 1221-OW

Model 1221-OW

OUT OF WALL FIRE/SMOKE DAMPERS

QUALIFICATIONS:● UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper - 1 1/2 hr. Label.● UL 555S Classified Smoke Damper, Leakage Class I at 250˚F or 350˚F

elevated temperature.● Meets NFPA 90A, NFPA 92A, BOCA, SBCCI, UBC, IBC and NBC (Canada)

requirements.● City of New York MEA #119-00-M● Maximum velocity of 2000 fpm (10 m/s) @ 4" w.g. dependent upon actuator.

MODEL 1221-OW(DAMPER ONLY SHOWN)

Nailor’s Model 1221-OW is an “out of wall” high performance combination fire /smoke damper specifically designed for supply orreturn ducts that terminate at a grille. The design allows for through the grille access to the damper, actuator and othercomponents. The 1221-OW is perfect for applications where building codes require both a fire damper for the protection of ductpenetrations in walls or floors that have a fire resistance rating of 2 hours or less and also require a leakage rated damper foroperational smoke control in static or dynamic smoke management systems. The 1221-OW features Nailor’s unique inter-lockingdouble skin airfoil blade design that eliminates combustible seals and provides flame and smoke seal under fire conditions attemperatures up to 2000˚F! Model 1221-OW offers premium performance with the lowest leakage class available and a lowpressure drop design that is well suited to the majority of commercial applications. Standard sleeve length accommodates mostcommercial supply and return grilles and registers.

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CONSTRUCTION DETAILS:FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel

hat channel.

BLADES: 14 ga. (2.0) equivalent galvanized steel formed airfoil on 5 1/2" (140) centers. Opposed action.

SLEEVE: 16" x 20 ga. (406 x 1.0) galvanized steel with 3/4" (19) flange on one end standard for all dampers over 16" (406) high. Dampers 16" (406) high and under have a 20" (508) long sleeve.

INSULATION: Intumescent thermal insulation on four sides.

LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.

BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.

AXLES: 1/2" (13) dia. plated steel double bolted to blades.

JACKSHAFT: 1/2" (13) dia. cadmium plated steel.

JAMB SEALS: Stainless Steel.

HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, with ERL only, 350°F (176°C) available. ERL (Electric Resettable Link) is standard on all dampers with electric actuators. PRL(Pneumatic Replaceable Link) is standard on all dampers with pneumatic actuators.

MINIMUM SIZE:

Vertical or Horizontal mount: 12" W x 8" H (305 x 203) or 8” W x 12” H (203 x 305) with electricactuator. 8" W x 20" H (203 x 508) with pneumaticactuator.

MAXIMUM SIZE:Single SectionVertical mount: 36" W x 48" H (914 x 1219). Horizontal mount: 32" W x 48" H (813 x 1219).

Multiple Section Assemblies are not permitted.

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MODEL: 1221 - OW

A Typical 2 hour rated vertical steel stud construction or horizontal concrete fire partition.

B Duct connection.C Intumescent material.D #10 sheet metal screws.E ActuatorF Grille/DiffuserG Rear retaining angle

(required for horizontal mounting).

H ERL Electric Resettable Link (Heat Sensor)

MODEL 1221-OW‘OUT OF WALL’ MOUNTING

16" (406) MAX.

STANDARD DEPTHFOR GRILLE CLEARANCE IS 3 1/2" (89)

GRILLE/REGISTER(BY NAILOR OR OTHERS)

FIRE RATED PARTITION

INTERNALLYMOUNTEDACTUATOR

16" OR 20" (406 OR 508) STD.

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AS FOLLOWS:NOM. DAMPER SIZE + 1/2" (13).

NOTES:

1. IMPORTANT: DAMPERS ARE FURNISHED FULL ORDERED SIZE TO FACILITATE GRILLE INSTALLATION.OPENING SIZE IN PARTITION SHOULD BE SIZED 1/2" (13) LARGER IN ALL DIRECTIONS TO ALLOW FORSLEEVE THICKNESS.

2. FOR PERFORMANCE DATA SEE MODEL 1220.

Revised February 23, 2005

16" (406) MAX.

3/4" (19) MIN. FLANGE

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HORIZONTAL MOUNTVERTICAL MOUNT


MODEL: 1221-OW

VARIABLES / ACCESSORIES

VARIABLES: CODE DESCRIPTION

MOUNTING: V Vertical Mount (wall)H Horizontal Mount (floor)




CLOSURE TEMPERATURE: 165 165°F (74°C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=350˚F/Low=165˚F

SLEEVE LENGTH/GAUGE: Specify Sleeve Length: See Note 1 belowSpecify Sleeve Gauge: 20G, 18G, 16G, 14G, 10G

ACTUATORS: A wide selection of U.L. tested and approved actuators are available. Contact yourrepresentative for further assistance.

ACTUATOR MOUNTING: INT Internal Mount

FAIL POSITION: CL Damper to Fail ClosedDAMPER LOCATIONIN SLEEVE: L0 Specify Dimension from Sleeve End




RETAINING ANGLE: QS1 One “Quick Set” retaining angle

Notes: 1. Standard sleeve is 16" (406) long (suitable for 4" (102) thick wall) x 20 ga. (1.0) for dampers over 16" (406)in height or 20" (508) long x 20 ga. (1.0) for dampers 16" (406) or less in height. Shorter sleeve lengths areavailable (down to 14" (356)) dependent on height when actuator mounting orientation can be vertical orrequired grille depth clearance is reduced. Longer sleeve lengths are available as long as 16" maximumdistance from wall to sleeve end is maintained. Standard sleeve provides minimum grille depth clearance of3 1/2" (89).

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MODEL: 1221-OW

HOW TO ORDER:

Select model number and size, then select from each variable. Choose accessories as desired. See previous page fordescription of variables and accessories.

Notes: 1. * Maximum closure temperature allowed is equal to elevated temperature rating. HL (high/low closure temps.) must be selected when MLS-400 is selected as closure device.2. * * Standard sleeve is 16" (406) long (suitable for 4" (102) thick wall) x 20 ga. (1.0) for dampers over 16" (406)in height or 20" (508) long x 20 ga. (1.0) for dampers 16" (406) or less in height. Shorter sleeve lengths areavailable (down to 14" (356)) dependent on height when actuator mounting orientation can be vertical or requiredgrille depth clearance is reduced. Longer sleeve lengths are available as long as 16" maximum distance from wallto sleeve end is maintained. Standard sleeve provides minimum grille depth clearance of 3 1/2" (89).3. IMPORTANT: Damper is furnished full ordered size to facilitate grille installation.4. MLS-300 is included as part of MLS-400 package.


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1221-OW ie: 24" x 36" V 125 ERL 165 20G INT CL L0 300

H 135 ML4 212 18G EP1

PRL 250 16G EP2

350 14G QS1

HL 10G

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SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Combination Fire/Smoke Dampers approved for use where ductwork designpenetrates and terminates at a fire separation. Dampers shall be as manufactured by Nailor Industries and shall meet or exceed thefollowing criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforced with die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed double skin, airfoil design, on 5 1/2" (140) centers. Dampers shall be of opposed blade configuration with an interlocking blade design that provides complete flameand smoke seal under fire conditions at an elevated temperature of 2000°F (1093°C) when in closed position. Dampers requiring bladeseals to maintain leakage class when under elevated temperature conditions are not acceptable. Blade axles shall be plated steel,double bolted at each end of blade to provide positive locking connection. Hex or square friction-fit, or press-fit axles are notacceptable. Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be zero maintenance, concealed in frame, out ofairstream. Jamb seals shall be compression-type stainless steel.Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriter’s Laboratories andlabeled as 1 1/2 hour Fire Damper under UL 555, and Class I Smoke Damper under UL 555S at an elevated temperature of 250°F(121°C) or 350°F (177°C) (specifier select one) for use in dynamic or static Smoke Control Systems. Dampers shall be supplied withfactory installed sleeves of minimum 16" (406) length for dampers over 16" (406) in height and minimum 20" (508) length for dampers16" or less in height, and shall be field verified by contractor, dependent on wall thickness. Sleeves shall be caulked to UL requirementsand shall be 20 ga. (1.0) galvanized steel with 3/4" (19) flange on one end. Sleeves shall be insulated on all four sides with intumescentthermal insulation to reduce heat transfer.Appropriate electrical or pneumatic actuators (specifier select one) shall be installed internally by the damper manufacturer in thefactory and shall have been tested and classified under UL 555S with the damper at an elevated temperature of 250°F (121°C) or350°F (177°C). Actuators shall incorporate an OEM internal spring return mechanism. External after-market spring mechanisms arenot acceptable. Damper and actuator assembly shall be factory cycled a minimum of three times to ensure correct operation.Each damper shall be equipped with a UL Classified heat responsive device that will cause the damper to close in a controlled mannerand lock in a closed position by means of an over center/knee lock linkage, when the duct temperature reaches the maximum degradationtemperature of the damper/actuator assembly as required by UL 555S. Closure devices that cause instantaneous closure are notacceptable. Damper manufacturer shall submit independent test data supporting low pressure drop design. Pressure drop across a 24"x 24" (610 x 610) damper shall not exceed 0.12" w.g. at 2000 fpm. Standard of acceptance: Nailor Industries Model 1221-OW.

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• INTEGRAL SLEEVE FORUSE WITH GRILLE

• PREMIUM PERFORMANCE• AIRFOIL BLADE• UL 555 CLASSIFIED


Model 1221G is a high performance combination fire/smoke damper specifically designed for supply or return ducts that teminateat a grille. The special factory sleeve with unique 3/4” (19) grille mounting flanges simplifies installation, saves on field labor andeliminates the requirements for unsightly front retaining angles which commonly protrude from behind the grill. Steel grille withcorrectly located countersunk screwholes is available from Nailor and installs over and completely hides the mounting flanges.The damper is offset in the sleeve to accomodate a single or double deflection supply air grille, single deflection supply air registeror a return air grille or register.The 1221G offers premium performance with the lowest leakage class available and a low pressure drop well suited to the majorityof commercial applications. Unique inter-locking double skin blade design eliminates combustible seals and provides flame andsmoke seal under fire conditions at temperatures up to 2000°F.

Model 1221G

GRILLE MOUNTING FIRE/SMOKE DAMPERS

MODEL: 1221G

AIRFOIL

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OPTIONALGRILLE

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5"(127)

MODEL 1221G


hat channel.BLADES: 14 ga. (2.0) equivalent galvanized steel formed

airfoil on 5 1/2" (140) centers. Opposed action.SLEEVE: 16” x 20 ga.. (406 x 1.0) galvanized steel with 3/4”

(19) wide grille mounting flangesLINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.AXLES: 1/2" (13) dia. plated steel double bolted to blades.JACKSHAFT: 1/2" (13) dia. cadmium plated steel.JAMB SEALS: Stainless steel.HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):

250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, with ERL only, 350°F (176°C) available.ERL (Electric Resettable Link) is standard on all dampers with electric actuators. PRL (Pneumatic Replaceable Link) is standard on all dampers with pneumatic actuators.

MINIMUM SIZE: 8" x 8" (203 x 203).MAXIMUM SIZE: 24" x 24" (610 x 610)IMPORTANT NOTE: Minimum 6 1/2” (165) wall thickness is required forthis installation. Contact factory for non-standard applications.


QUALIFICATIONS:• UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper • 1 1/2 hr. Label.• UL 555S Classified Smoke Damper

Leakage Class I or II at 250°F or 350°F elevated temperature.• Meets NFPA 90A, NFPA 92A, BOCA, SBCCI, UBC, IBC and NBC (Canada)

requirements.• Maximum velocity 2000 fpm @ 4" w.g.

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CLOSURE TEMPERATURE: 165 165°F (74°C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=350˚F/Low=165˚F

SLEEVE LENGTH/GAUGE: Specify Sleeve Length: See Note 1 belowSpecify Sleeve Gauge: 20G, 18G, 16G, 14G, 10G

ACTUATORS: 411 Honeywell ML4115 (120V)811 Honeywell ML8115 (24V)296 Siemens 331-2961 (25psi)

ACTUATOR MOUNTING: INT Internal MountEXT External Mount

FAIL POSITION: CL Damper to Fail ClosedDAMPER LOCATIONIN SLEEVE: L0 Specify Dimension from Sleeve End




RETAINING ANGLE: QS1 One “Quick Set” retaining angle

FLANGED SLEEVE: TDF1 Flange on One End

Notes: 1. Standard sleeve is 16” (406) long x 20 ga. (1.0), provides a grille clearance depth of 2 1/2 (64), and requires a minimum wall thickness of 6 1/2” (165) (closed damper blades must remain within the plane of the wall/floor). Damper position ‘S’ may be reduced to accomodate a thinner wall but grille clearance will reduce accordingly.

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MODEL: 1221G

16"(406) STD

Actuator

4" 5" 7"

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STANDARD DEPTHFOR GRILLE

CLEARANCE IS2 1/2"(64)

STANDARD DAMPER/SLEEVE


MODEL: 1221G

HOW TO ORDER:


Notes: 1. * Maximum closure temperature allowed is equal to elevated temperature rating. HL (high/low closuretemps.) must be selected when MLS-400 is selected as closure device.2. * * Standard sleeve is 16” (406) long x 20 ga. (1.0), provides a grille clearance depth of 2 1/2” (64), andrequires a minimum wall thickness of 6 1/2” (165) (closed damper blades must remain within the plane of thewall/floor). Damper position ‘S’ may be reduced to accomodate a thinner wall but grille clearance will reduceaccordingly.3. MLS-300 is included as part of MLS-400 package.

1221G ie: 24" x 24" V 125 ERL 165 20G 411 EXT CL L0 300

H 135 ML4 212 18G 811 INT EP1

225 PRL 250 16G 296 EP2

235 350 14G QS1

HL 10G TDF1

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SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Combination Fire/Smoke Dampers approved for use with grilles whereductwork design penetrates and terminates at a fire separation. Dampers shall be as manufactured by Nailor Industries and shall meetor exceed the following criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforcedwith die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed double skin, airfoil design,on 5 1/2" (140) centers. Dampers shall be of opposed blade configuration with an interlocking blade design that provides completeflame and smoke seal under fire conditions at an elevated temperature of 2000°F (1093°C) when in closed position. Dampers requiringblade seals to maintain leakage class when under elevated temperature conditions are not acceptable. Blade axles shall be platedsteel, double bolted at each end of blade to provide positive locking connection. Hex or square friction-fit, or press-fit axles are notacceptable. Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be zero maintenance, concealed in frame, out ofairstream. Jamb seals shall be compression-type stainless steel.Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriter’s Laboratories andlabeled as 1 1/2 hour Dynamic Fire Damper under UL 555, and Class 1 Smoke Damper under UL 555S at an elevated temperatureof 250°F (121°C) or 350°F (177°C) (specifier select one) for use in dynamic or static Smoke Control Systems. Dampers shall besupplied with 16” (406) long factory installed sleeves and shall be field verified by contractor, dependent on wall thickness. Sleevesshall be caulked to UL requirements and shall be 20 ga. (1.0) galvanized steel with 3/4" (19) wide grille mounting flanges on one end.Appropriate electrical or pneumatic actuators (specifier select one) shall be installed by the damper manufacturer in the factory andshall have been tested and classified under UL 555S with the damper at an elevated temperature of 250°F (121°C) or 350°F (177°C).Actuators shall incorporate an OEM internal spring return mechanism. External after-market spring mechanisms are not acceptable.Damper and actuator assembly shall be factory cycled a minimum of three times to ensure correct operation.Each damper shall be equipped with a UL Classified heat responsive device that will cause the damper to close in a controlled mannerand lock in a closed position by means of an over center/knee lock linkage, when the duct temperature reaches the maximum degradationtemperature of the damper/actuator assembly as required by UL 555S. Closure devices that cause instantaneous closure are notacceptable. Damper manufacturer shall submit independent test data supporting low pressure drop design. Standard of acceptance:Nailor Industries Model 1221G.


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MODEL 1220M (1 1/2 HR. LABEL) MODEL 1220M-3 (3 HR. LABEL)MIN. DUCT MIN. DUCTSIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203); SIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203).

8" x 6" (203 x 152) with low profile frame (max size 18" x 6").

MAX. DUCT MAX. DUCTSIZE: Single Section SIZE: Single Section

Vertical mount: 36" x 36" (914 x 914). Vertical mount: 36" x 36" (914 x 914).Horizontal mount: 32" x 36" (813 x 914). Horizontal mount: 32" x 36" (813 x 914).

Multiple Section Assembly Multiple Section Assemblies are not permitted.Vertical mount: 72" x 72" (1829 x 1829).Horizontal mount: 64" x 72" (1626 x 1829).

• MODULATING (VOLUMECONTROL)

• PREMIUM PERFORMANCE• AIRFOIL BLADE• UL 555 CLASSIFIED


MODELS: 1220M 1 1/2 HR LABEL1220M-3 3 HR LABEL

The 1220M Series modulating dampers are classified for use as a volume control damper in applications where building codesrequire both a fire damper for the protection of ductwork penetrations in walls or floors that have a fire resistance rating of up to2 hours and a leakage rated damper for operational smoke control in static or dynamic smoke management systems.The 1220M Series has been especially designed and tested to provide premium performance. It offers the lowest leakage classavailable and is qualified for installation with airflow in either direction. Airfoil blade design and elimination of blade sills, top andbottom, provide a low pressure drop design.Unique, inter-locking double skin blade design provides flame and smoke seal under fire conditions.

CONSTRUCTION DETAILS:FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat channel.BLADES: 14 ga. (2.0) equivalent galvanized steel formed airfoil on 5 1/2"

(140) centers. Opposed action.LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.AXLES: 1/2" (13) dia. plated steel double bolted to blades.JACKSHAFT: 1/2" (13) dia. cadmium plated steel.JAMB SEALS: Stainless Steel.HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE): 250°F (121°C)standard. 165°F (74°C) and 212°F (100°C) available. ERL (Electric Resettable Link)is standard on all dampers with electric actuators. PRL (Pneumatic Replaceable Link)is standard on all dampers with pneumatic actuators.

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QUALIFICATIONS:• UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper • 1 1/2 & 3 hr. Labels.• UL 555S Classified Smoke Damper.

Leakage Class I at 250°F elevated temperature.• City of New York. MEA #366-03-M.• California State Fire Marshal: Fire Damper Listing No. 3225-0935:106.• Meets NFPA 90A, NFPA 92A, BOCA, SBCCI, UBC, IBC and NBC (Canada)

requirements.

AIRFOIL

MODEL 1220M 1 1/2 HOUR LABELMODEL 1220M-3 3 HOUR LABEL

Model 1221M


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Min. Duct Size: 8" x 4" (203 x 102) (Overall damper height is 8" (203) [6"(152) on duct sizes 18" x 5 1/2" ((457 x 140) and under (1 1/2 Hr. Label Only)].

Max. Duct Size: Single SectionVertical mount: 36" x 7 1/2" (914 x 191).Horizontal mount: 32" x 7 1/2" (813 x 191).

Multiple Section Assembly Model 1222MVertical mount: 72" x 7 1/2" (1829 x 191).Horizontal mount: 64" x 7 1/2" (1626 x 191).

Multiple Section Assembly Model 1222M-3Multiple Section Assemblies are not permitted.

Min. Duct Size: Vertical or Horizontal mount: 4" (102) diameter.(Overall damper size is 8" x 6" (203 x 152) (1 1/2 Hr. Label only); 8" x 8" (203x 203) min. for duct sizes over 4" (102) dia.)

Max. Duct Size: Single SectionVertical mount: 34" (864) diameter.Horizontal mount: 30" (762) diameter.

Multiple Section Assembly Model 1223MVertical mount: 70" (1778) diameter.Horizontal mount: 62" (1575) diameter.


Min. Duct Size: Vertical or Horizontal mount: 4" x 4" (102 x 102).(Overall damper width is 8" minimum; minimum overall height is 6" (152) (1 1/2 Hr. Label only) [8" (203) for duct sizes over 16" x 4" (406 x 102)].

Max. Duct Size: Single SectionVertical mount: 34" x 34" (864 x 864).Horizontal mount: 30" x 34" (762 x 864).

Multiple Section Assembly Model 1223MVertical mount: 70" x 70" (1778 x 1778).Horizontal mount: 62" x 70" (1575 x 1778).


8" (203)


SLEEVE

DAMPER

16" (406) STANDARD


5" (127)


D –1/8" (3)

(D –1/4" (6)OVER

36"(914))

16" (406) STANDARD

5" (127)8" (203)STANDARD

JACKSHAFT


SLEEVE

DAMPER

CCWTO

OPEN

6" (152)OR

8" (203)OVERALL(SEE MIN.

DUCT SIZE)

H =NOM.DUCTSIZE

W = NOM. DUCT SIZE

W + 2" (51)

W

H

H+2"

(51)


H =NOM.DUCTSIZE

H+2"

(51)

CCWTO

OPEN


EnclosureLength

4 (102) 16 (406)

8 (203) 20 (508)

12 (305) 24 (610)

16 (406) 28 (711)


8" (203)

SLEEVE

DAMPER

SLEE

VE =

NO

MIN

AL D

UC

T SI

ZE

16" (406) STANDARD

5" (127)

WITH TYPE A SLEEVE: MODELS 1221M/1221M-3 TYPE B SLEEVE ENCLOSURE: MODELS 1222M/1222M-3

STYLE CR : FOR ROUND DUCT STYLE CO : FOR OVAL DUCT STYLE CSR : FOR SQUARE ORRECTANGULAR DUCT


* 6" (152) or 8" (203) min. (See Min. Duct size)

TYPE C SLEEVE ENCLOSURES:MODELS 1223 M / 1223M-3

D + 2" (51)

D =NOM.DUCTDIA.

D+2"

(51)

CCWTO

OPEN

*

*

* *

***6" (152) or

8" (203) min. (See Min. Duct size)

Model Series 1220M (1 1/2 Hr. Label) dampers with duct heights less than 6" (152) (8" [203] if width is over18" [457]) or Model Series 1220M-3 (3 Hr. Label) with duct heights less than 8" (203) require a Type ‘B’sleeve enclosure (Model 1222M/1222M-3). Duct sizes less than 8" (203) in width require a Type ‘C’enclosure (Model 1223M/1223M-3).


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MODELS: 1220M/1221M/1222M/1223M (1-1/2 HOUR LABEL)1220M-3/1221M-3/1222M-3/1223M-3 (3 HOUR LABEL)

VARIABLES / ACCESSORIESVARIABLES: CODE DESCRIPTIONMOUNTING: V Vertical Mount (wall)

H Horizontal Mount (floor)

LEAKAGE / ELEV. TEMP. 125 Class I @ 250°FRATINGS:CLOSURE DEVICE: ERL Electric Resettable Link

ML4 MLS-400 Fire Sensor Reopenable Control System

PRL Pneumatic Replaceable Link

CLOSURE TEMPERATURE: 165 165˚F (74˚C)212 212°F (100°C)250 250°F (121°C)HL (must select with MLS-400) High=250°F/Low=165°F


ACTUATORS: MS7 Honeywell MS7510A (24 VAC)296P Siemens 331-2961PR (25 psi)




IF MODEL 1223M IS SELECTED, CR Round Type C TransitionsSPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions







FLANGED SLEEVE: TDF1 TDF Flange on One End(MODEL 1221M ONLY) TDF2 TDF Flange on Both Ends




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MODELS: 1-1/2 HOUR LABEL 1220M/1221M/1222M/1223M3 HOUR LABEL 1220M-3/1221M-3/1222M-3/1223M-3

HOW TO ORDER: Select model number and size, then select from each variable. Choose accessories as desired.See previous page for description of variables and accessories.



MO

DE

L

SIZ

E(W

X H

)

MO

UN

TIN

G

LEA

KA

GE

/ ELE

V.TE

MP.

RA

TIN

GC

LOS

UR

E D

EV

ICE

*

CLO

SU

RE

TE

MP.

**S

LEE

VE

LE

NG

TH**

*

SLE

EV

E G

AU

GE

***

AC

TUA

TOR

AC

TUA

TOR

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TIN

G

AC

TUA

TOR

LOC

ATI

ON

FAIL

PO

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ION

DA

MP

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LO

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NIN

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TY

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)

1220M ie: 36" x 24" V 125 ERL 165 20G MS7 EXT RH CL L8 CR 3001221M or H ML4 212 18G 296P LH L0 CO EP11222M 18" dia. PRL 250 16G MH CSR EP21223M HL 14G SMP1220M-3 10G QS11221M-3 QS21222M-3 TDF11223M-3 TDF2

DTSDSDLDSDN

AC

CE

SS

OR

IES

*

SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, modulating combination fire/smoke dampers suitable for volume controlmeeting or exceeding the following criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with miteredcorners reinforced with die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed doubleskin, airfoil design, on 5 1/2" (140) centers. Dampers shall be of opposed blade configuration with an interlocking blade design thatprovides complete flame and smoke seal under fire conditions at an elevated temperature of 2000°F (1093°C) when in closed position.Dampers requiring blade seals to maintain leakage class when under elevated temperature conditions are not acceptable. Blade axlesshall be plated steel, double bolted at each end of blade to provide positive locking connection. Hex or square friction-fit, or press-fitaxles are not acceptable. Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be zero-maintenance, concealed inframe, out of airstream. Jamb seals shall be compression-type stainless steel.Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriter's Laboratories andlabeled as a 1 1/2 or 3 hour, (specifier select one), Fire Damper under UL 555, and as a Class I Smoke Damper under UL 555S atan elevated temperature of 250°F (121°C). Dampers shall be tested and approved for use as a volume control damper in dynamic orstatic Smoke Control Systems. Dampers shall be supplied with factory installed sleeves of minimum 16" (406) length and shall be fieldverified by contractor, dependent on wall thickness. Factory sleeves shall be caulked to UL requirements and shall be minimum 20ga. (1.0). Appropriate electric or pneumatic actuators (specifier select one) shall be installed by the damper manufacturer in the factory andshall have been tested and classified under UL 555S with the damper at an elevated temperature of 250°F (121°C). Actuators shallincorporate an OEM internal spring return mechanism. External after-market spring mechanisms are not acceptable. Each damper shall be equipped with a UL Classified heat responsive device that will cause the damper to close in a controlled mannerand lock in a closed position by means of an over center/knee lock linkage, when the duct temperature reaches the maximumdegradation temperature of the damper/actuator assembly as required by UL 555S. Closure devices that cause instantaneous closureare not acceptable. Submitted pressure drop data to be based on tests in accordance with AMCA Standard 500-D and shalldemonstrate a maximum pressure drop of .02" w.g. @ 849 fpm (5 Pa @ 4.3 m/s) across a 36" x 36" (914 x 914) damper. Standard ofacceptance: Nailor Industries Model 1220M (1 1/2 hour rating) or Model 1220M-3 (3 hour rating).

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• VERTICAL BLADES• PREMIUM PERFORMANCE• ULTRA-LOW LEAKAGE• UL 555 CLASSIFIED


MODELS: 1220VB TYPE A1221VB TYPE A IN SLEEVE1222VB TYPE B1223VB TYPE C

Model 1220VB (Vertical Blade) is a high performance combination fire/smoke damper that provides superior protection andversatility. The vertical blade configuration allows for the actuator to be mounted below the damper and is ideal for applicationswhere bottom access is desired or where there isn’t space for a side mounted actuator.The 1220VB Series dampers are ideal for applications where building codes require both a fire damper for the protection of

ductwork penetrations in walls that have a fire resistance rating of up to 2 hours and also require a leakage rated damper foroperational smoke control in static or dynamic smoke management systems.The 1220VB Series has been especially designed and tested to provide premium performance. It offers the lowest leakage classavailable and is qualified for installation with airflow in either direction. Airfoil blade design and elimination of blade sills provide alow pressure drop design.Unique, inter-locking double skin blade design provides flame and smoke seal under fire conditions at tempratures up to 2000°F.

5"

(127)

H =

NO

MIN

AL D

UC

T SI

ZE -

1/4"

(6)


CCW TO OPEN

(WHEN VIEWED FROM BELOW)

QUALIFICATIONS:• UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper • 1 1/2 hr. Label.• UL 555S Classified Smoke Damper.

Leakage Class I or II at 250°F elevated temperature.• City of New York. MEA #366-03-M.• California State Fire Marshal: Fire Damper Listing No. 3225-0935:106.• Meets NFPA 90A, NFPA 92A, BOCA, and NBC (Canada) requirements.• Maximum velocity 2000 fpm @ 4" w.g.

AIRFOIL

MODEL 1220VB

Model 1221VB

CONSTRUCTION DETAILS:FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat

channel.BLADES: 14 ga. (2.0) equivalent galvanized steel formed airfoil

on 5 1/2" 140) centers. Opposed action.LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.AXLES: 1/2" (13) dia. plated steel double bolted to blades.JACKSHAFT: 1/2" (13) dia. cadmium plated steel.JAMB SEALS: Stainless Steel.HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE): 250°F(121°C) standard. 165°F (74°C) and 212°F (100°C) available.ERL(Electric Resettable Link) is standard on all dampers with electricactuators.Minimum Size: Vertical mount only: 8" x 8" (203 x 203).Maximum Size: Single Section

Vertical mount only: 48" x 36" (1219 x 914).Multiple Section Assemblies are not permitted.


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Model Series 1220VB dampers with duct heights less than 8" (203) require a Type ‘B’ sleeve enclosure(Model 1222VB). Units less than 8" (203) in width only, or in both width and height, require a Type ‘C’enclosure (Model 1223VB).

Min. Duct Size: Vertical mount only: 8" x 4" (203 x 102).(Overall damper height is 8" [203]).

Max. Duct Size: Single SectionVertical mount only: 48" x 7 1/2" (1219 x 191).Multiple Section Assemblies are not permitted.

.

Min. Duct Size: Vertical mount only: 4" (102) diameter.(Overall damper size is 8" x 8" [203 x 203] min.).

Max. Duct Size: Single SectionVertical mount only: 34" (864) diameter.Multiple Section Assemblies are not permitted.

Min. Duct Size: Vertical mount only: 4" x 4" (102 x 102).(Overall damper size is 8" x 8" [203 x 203] min.).

Max. Duct Size: Single Section – Vert. mount only: 46" x 34" (1168 x 864).Multiple Section Assemblies are not permitted.

8"(203)

5"(127)

16" (406) STD.

"B"ENCLOSUREBOTH ENDS

D –1/8" (3)

(D –1/4" (6)OVER

36"(914))

8"(203)

5"(127)

16" (406) STD.

"C" ENCLOSURE BOTH ENDS

CCW TO OPEN(WHEN VIEWEDFROM BELOW)

H =NOM.DUCTSIZE

8"(203)

OVERALL

W = NOM. DUCT SIZE

H

H+2"

(51)

W + 2" (51)

W CCW TO OPEN(WHEN VIEWEDFROM BELOW)

H

H+2"

(51)

W + 2" (51)

WCCW TO OPEN(WHEN VIEWEDFROM BELOW)


EnclosureLength

4 (102) 16 (406)

8 (203) 20 (508)

12 (305) 24 (610)

16 (406) 28 (711)

SLEE

VE =

NO

MIN

AL D

UC

T SI

ZE

8"(203)

5"(127)

16" (406) STD.

WITH TYPE A SLEEVE: MODEL 1221VB TYPE B SLEEVE ENCLOSURE: MODEL 1222VB

STYLE CO : FOR OVAL DUCT STYLE CSR : FOR SQUARE ORRECTANGULAR DUCT


* 8" (203) min. (See Min. Duct size)

TYPE C SLEEVE ENCLOSURES:MODEL 1223VB

D =NOM.DUCTDIA.

D+2"

(51)

D + 2" (51)CCW TO OPEN(WHEN VIEWEDFROM BELOW)

*

*

* *

***8" (203) min.

(See Min. Duct size)

STYLE CR : FOR ROUND DUCT


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MODELS: 1220VB/1221VB/1222VB/1223VB

VARIABLES / ACCESSORIESVARIABLES: CODE DESCRIPTIONMOUNTING: V Vertical Mount (wall)LEAKAGE / ELEV. TEMP. 125 Class I @ 250°FRATINGS: 225 Class II @ 250°FCLOSURE DEVICE: ERL Electric Resettable Link


CLOSURE TEMPERATURE: 165 165˚F (74˚C)212 212°F (100°C)250 250°F (121°C)HL (must select with MLS-400) High=250°F/Low=165°F


ACTUATORS: 412 Honeywell MS4120 (120 VAC)812 Honeywell MS8120 (24 VAC)462 Honeywell MS4620 (230 VAC)



IF MODEL 1223VB IS SELECTED, CR Round Type C TransitionsSPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions






FLANGED SLEEVE: TDF1 TDF Flange on One End(MODEL 1221VB ONLY) TDF2 TDF Flange on Both Ends




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MODELS: 1220VB/1221VB/1222VB/1223VBHOW TO ORDER: Select model number and size, then select from each variable. Choose accessories as desired.See previous page for description of variables and accessories.



MO

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*

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MP.

**S

LEE

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TH**

*

SLE

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E G

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***

AC

TUA

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AC

TUA

TOR

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1220VB ie: 36" x 24" V 125 ERL 165 20G 412 EXT CL L8 CR 3001221VB or 225 ML4 212 18G 812 L0 CO SMP1222VB 18" dia. 250 16G 462 CSR QS11223VB HL 14G QS2

10G TDF1TDF2DTSDSDLDSDN

AC

CE

SS

OR

IES

*

SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, vertical blade combination fire/smoke dampers meeting or exceeding thefollowing criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforced with die-formed corner gussets for strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed double skin, airfoil design, on 5 1/2" (140) centers and shall be oriented vertically to allow for bottom mount actuators. Dampers shall be of opposed bladeconfiguration with an interlocking blade design that provides complete flame and smoke seal under fire conditions at an elevatedtemperature of 2000°F (1093°C) when in closed position. Dampers requiring blade seals to maintain leakage class when underelevated temperature conditions are not acceptable. Blade axles shall be plated steel, double bolted at each end of blade to providepositive locking connection. Hex or square friction-fit, or press-fit axles are not acceptable. Bearings shall be self-lubricating oilitebronze type. Blade linkage shall be zero-maintenance, concealed in frame, out of airstream. Jamb seals shall be compression-typestainless steel.Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriter's Laboratories andlabeled as a 1 1/2 Fire Damper under UL 555, and as a Class I or Class II (specifier select one) Smoke Damper under UL 555S atan elevated temperature of 250°F (121°C) for use in dynamic or static Smoke Control Systems. Dampers shall be supplied with factoryinstalled sleeves of minimum 16" (406) length and shall be field verified by contractor, dependent on wall thickness. Factory sleevesshall be caulked to UL requirements and shall be minimum 20 ga. (1.0). Appropriate electric actuators shall be installed by the damper manufacturer in the factory and shall have been tested and classifiedunder UL 555S with the damper at an elevated temperature of 250°F (121°C). Actuators shall incorporate an OEM internal springreturn mechanism. External after-market spring mechanisms are not acceptable. Each damper shall be equipped with a UL Classified heat responsive device that will cause the damper to close in a controlled mannerand lock in a closed position by means of an over center/knee lock linkage, when the duct temperature reaches the maximumdegradation temperature of the damper/actuator assembly as required by UL 555S. Closure devices that cause instantaneous closureare not acceptable. Submitted pressure drop data to be based on tests in accordance with AMCA Standard 500-D and shalldemonstrate a maximum pressure drop of .02" w.g. @ 849 fpm (5 Pa @ 4.3 m/s) across a 36" x 36" (914 x 914) damper. Standard ofacceptance: Nailor Industries Model 1220VB.

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www.nai lor.com

Notes:

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• UL 555 CLASSIFIED DYNAMIC FIRE DAMPER

• UL 555S CLASSIFIEDSMOKE DAMPER

• LEAKAGE CLASS I OR II

MODELS: 1270 TYPE A1271 TYPE A IN SLEEVE1272 TYPE B1273 TYPE C

VEE BLADE FIRE/SMOKE DAMPERS

The Nailor Series 1270 combination fire/smoke damper, with sturdy vee-groove style blades and a rugged mitered corner hatchannel frame design that virtually eliminates racking, provides 1 1/2 hour UL labeled fire protection suitable for use whereductwork penetrates a wall or floor with a fire resistance rating of 2 hours or less. The 1270 Series is also UL tested and labeledfor use as a Class I or II Leakage Rated Damper for smoke control applications in both static or dynamic HVAC systemdesigns. Available with factory mounted sleeve Model 1271, and a variety of actuators and options to suit each application,the 1270 Series is a versatile and economical performer suitable for use in the majority of commercial applications.

CONSTRUCTION DETAILS:

FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6) galvanized steel hat channel.BLADES: 6" (152) wide on 5 1/2" (140) centers. 16 ga. (1.6)

galvanized steel vee groove or double skin design.LINKAGE: Concealed in frame. 12 ga. (2.7) plated steel.BEARINGS: 1/2" (13) dia. self-lubricating oilite bronze.AXLES: 1/2" (13) dia. plated steel double bolted to blades.JACKSHAFT: 1/2" (13) dia. cadmium plated steel.JAMB SEALS: Stainless steel.BLADE SEALS: Stainless steel.HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, with ERL only, 350°F(176°C) available. ERL (Electric Resettable Link) is standard on all dampers withelectric actuators. PRL (Pneumatic Replaceable Link) is standard on all damperswith pneumatic actuators.MINIMUM SIZE: Vertical or Horizontal mount: 8" x 8" (203 x 203).MAXIMUM SIZE: Single Section

Vertical mount: 36" x 48" (914 x 1219).Horizontal mount: 30" x 40" (762 x 1016).Multiple Section AssemblyVertical mount: 91" x 40" (2311 x 1016) or

72" x 48" (1829 x 1219).Horizontal mount: 91" x 40" (2311 x 1016) or

30" x 91" (762 x 2311).

QUALIFICATIONS:• UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper - 1 1/2 hr. Label.• UL 555S Classified Smoke Damper.

Leakage Class I or II at 250°F or 350°F elevated temp.• California State Fire Marshal: Fire Damper Listing No. 3225-0935:106,

Leakage (Smoke) Damper Listing No. 3230-0935:107.• City of New York Board of Standards and Appeals. Cal. No. 460-88-SA.• Meets NFPA 90A, NFPA 92A, IBC and NBC (Canada) requirements.• Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa).

Wall Minimum

Thickness SleeveLength

4 (102) 16 (406)

8 (203) 20 (508)

12 (305) 24 (610)

16 (406) 28 (711)


SLEEVE

DAMPERSLEE

VE =

NO

MIN

AL D

UC

T SI

ZE

16" (406) STANDARD

8" (203) 5" (127)

1 3/4" (44) MAX.

TYPE A WITH SLEEVE: MODEL 1271

TYPE A: MODEL 1270

Standard factory sleeve (caulked to UL requirements) 16"long x 20 ga. (406 x 1.0) (18 ga. for dampers over 84"(2134) in width). Available up to 36" (914) dependent uponwall thickness and 10 through 20 ga. (3.5-1.0).

Model 1270


5"

(127)


H =

NOM

INAL

DUC

T SI

ZE -

1/4"

(6)

CCWTO

OPEN

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TYPE C SLEEVE ENCLOSURESMODEL: 1273

TYPE B SLEEVE ENCLOSUREMODEL: 1272

Tested per AMCA standard 500-D, Fig. 5.3.

PERFORMANCE DATA:

Min. Duct Size:Vertical or Horizontal mount: 4" x 4" (102 x 102).(Overall damper size is 8" x 8" (203 x 203) min.).Max. Duct Size: Single SectionVertical mount: 34" x 46" (864 x 1168).Horizontal mount: 28" x 38" (711 x 965).Multiple Section AssemblyVertical mount: 89" x 38" (2261 x 965) or

70" x 46" (1176 x 1168).Horizontal mount: 89" x 38" (2261 x 965)

or 28" x 89" (711 x 2261).

Model Series 1270 dampers with duct heights less than 8" (203) require a Type ‘B’ sleeve enclosure (Model 1272). Unitsless than 8" (203) in width only, or in both width and height, require a Type ‘C’ enclosure (Model 1273).

Min. Duct Size:8" x 4" (203 x 102) (Overall damper H is 8").Max. Duct Size:Single SectionVertical mount: 36" x 7 1/2" (914 x 191).Horizontal mount: 30" x 7 1/2" (762 x 191).Multiple Section AssemblyVertical mount: 91" x 7 1/2" (2311 x 191).Horizontal mount: 91" x 7 1/2" (2311 x 191).

Min. Duct Size:Vertical or Horizontal mount: 4" (102) diameter.(Overall damper size is 8" x 8" (203 x 203) min.).Max. Duct Size:Single SectionVertical mount: 34" (864) diameter.Horizontal mount: 28" (711) diameter.Multiple Section AssemblyVertical mount: 46" (1168) diameter, Horizontal mount: 38" (965) diameter.

CCWTO

OPEN

8"(203)

OVERALL

H = NOM.DUCTSIZE

4" (102) MIN.

W = NOM. DUCT SIZE8" (203) MIN.

8" (203)


SLEEVE

DAMPER

16" (406) STANDARD

5" (127)


D + 2" (51)

D =NOM.DUCTDIA.

D+2"

(51) CCWTO

OPEN

8" (203)


SLEEVEDAMPER

16" (406) STANDARD5" (127)


D –1/8" (3)

(D –1/4" (6)OVER

36"(914))


H =NOM.DUCTSIZE

H+2"

(51) CCWTO

OPEN

W + 2" (51)

W

H

H+2"

(51)

STYLE CR: FOR ROUND DUCT STYLE CO: FOR OVAL DUCT

STYLE CSR : FOR SQUARE or RECTANGULAR DUCT

TYPE C SIDE VIEW

300 400 600 800 15001000 400030002000

.40

.02

.03

.04

.05

.06

.07

.08

.09

.20

.50

.60

.70

.80

.901.0

.30

.10

.25

.15

500

.015

.01

5000

Sta

tic

Pre

ssu

re D

rop

in in

ches

w.g

.

Air Velocity in Feet Per Minute

36" x

36"

(914

x 9

14)

24" x

24"

(610

x 6

10)

12" x

12"

(305

x 3

05)

PRESSURE DROP (damper fully open)



@ 1" w.g. @ 4" w.g.(0.249 kPa) (0.995 kPa)

I 4 (0.020) 8 (0.041)

II 10 (0.051) 20 (0.102)

LEAKAGE CLASS The 1270 Series Combination Fire/Smoke Damper has been designedand qualified under UL 555S in order to provide maximum systemdesign flexibility. They are available with a Class I or II leakage ratingwith all damper/actuator assemblies having been tested successfully atan elevated temperature of 250°F (121°C) or 350°F (176°C), dependingon actuator, under airflow of 2000 fpm (10 m/s) at 4" w.g. (0.995 kPa).The criteria for selection should be based upon both first cost considerationand the maximum total acceptable leakage of all closed dampers in thesmoke management system when in the smoke control mode. This willhave an influence on fan selection and capacity requirement.

Imperial figures shown.To convert to SI(metric) system:

Multiply:

CFM x .4719 = liters persecond

inches w.g. x .2486= kilopascals

fpm x .00508 = metersper second

cfm per sq. ft. x 5.08 =liters/second per

sq. meter.

*

*

*

*

* or 8" (203) min.

* or 8" (203) min.

*

*



MODELS: 1270 / 1271 / 1272 / 1273








CLOSURE TEMPERATURE: 165 165°F (74°C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=350°F/Low=165°F


ACTUATORS: A wide selection of U.L. tested and approved actuators are available. Contact your representative for further assistance.


INT Internal Mount



IF MODEL 1273 IS SELECTED, CR Round Type C TransitionsSPECIFY TYPE OF TRANSITION: CO Oval Type C Transitions




E.P. SWITCH: EP1 120V Siemens 2651008EP2 24Vac Siemens 2651007



FLANGED SLEEVE: TDF1 TDF Flange on One EndTDF2 TDF Flange on Both Ends




Revised April 25, 2005G30

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MODELS: 1270 / 1271 / 1272 / 1273

HOW TO ORDER:

Select model number and size, then select from each variable. Choose accessories as desired. See previous pagefor description of variables and accessories.




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1270 ie: 36" x 24" V 125 ERL 165 20G EXT RH CL L8 CR 3001271 or H 135 ML4 212 18G INT LH L0 CO EP11272 18" dia. 225 PRL 250 16G MH CSR EP21273 235 350 14G SMP

HL 10G QS1QS2TDF1TDF2DTSDSDLDSDN

SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Combination Fire/Smoke Dampers meeting or exceeding thefollowing criteria: Frame shall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforced withdie-formed corner gussets for strength. Blades shall be of triple-vee design, 16 ga. (1.6) galvanized steel, on 5 1/2" (140)centers and shall be parallel configuration. Blade axles shall be 1/2" (13) dia. plated steel, double bolted at each end of bladeto ensure positive locking connection. Hex or square friction-fit or press-fit axles are not acceptable. Bearings shall be self-lubricating oilite bronze type. Blade linkage shall be zero-maintenance, concealed in frame, out of airstream. Jamb seals shallbe compression type stainless steel. Blade seals shall be stainless steel.Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriters Laboratoriesand labeled as a 1-1/2 hour Fire Damper under UL 555, and as a (specifier select one) Class I or Class II Leakage RatedSmoke Damper under UL 555S at an elevated temperature of (specifier select one) 250˚F (121˚C) or 350˚F (177˚C).Dampers shall be qualified for use in dynamic or static Smoke Control Systems. Dampers shall be supplied with factoryinstalled sleeves of minimum 16" (406) length, to be field verified by contractor, dependent on wall thickness. Factory sleevesshall be caulked to UL requirements and shall be 20 ga. (1.0) through 84" (2134) wide, and 18 ga. (1.2) above 84" (2134) wide.Appropriate electric or pneumatic actuators (specifier select type) shall be installed by the damper manufacturer in the factoryand shall have been tested and classified under UL 555S with the damper at an elevated temperature of (specifier selectone) 250˚F (121˚C) or 350˚F (177˚C). Actuators shall incorporate an OEM internal spring return mechanism. External after-market spring mechanisms are not acceptable. Damper and actuator assembly shall be factory cycled a minimum of threetimes to ensure correct operation.Each damper shall be equipped with a UL Classified heat responsive device that will cause the damper to close in a controlledmanner and lock in a closed position by means of an over center/knee lock linkage, when the duct temperature reaches themaximum degradation temperature of the damper/actuator assembly as required by UL 555S. Closure devices that causeinstantaneous closure are not acceptable.Damper manufacturer shall submit independent test data verifying pressure drop, leakage characteristics and airflowconditions. Standard of acceptance: Nailor Industries Model 1270.


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CORRIDOR FIRE/SMOKE DAMPERS • AIRFOIL BLADE

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• TUNNEL CORRIDOR FIRE/SMOKE DAMPER

• AIRFOIL BLADE• ULTRA-LOW LEAKAGE• UL555 1 HR RATING• UL555S CLASS I

AT 250° OR 350°F

MODELS: 1221C-11221C-2

Nailor Models 1221C-1 and 1221C-2 Tunnel Corridor Combination Fire/Smoke Dampers are for use where ductwork penetratesthe ceiling of an interior corridor of a building, creating a horizontal opening that requires protection. Unique interlocking airfoilblade design provides low pressure drop and ultra-low leakage without the use of blade seals that can burn-off during fireconditions. Model 1221C-1 is suitable for use with a steel grille or diffuser when the duct terminates at the ceiling. Model 1221C-2is suitable for use when the duct is required to continue down past the ceiling level. Each unit is supplied factory mounted in asuitable sleeve complete with upper retaining angles. For applications where the duct terminates at the ceiling, othermanufacturers require full length lower retaining angles with minimum 1" (25) ceiling overlap that protrudes past the grille/diffuserframe causing aesthetic difficulties. Model 1221C-1 is provided with lower mounting tabs that are easily covered by availablevariety of Nailor steel grilles/diffusers, solving this problem. For Model 1221C-2, lower retaining angles are available from Nailor.Either way, Nailor provides complete protection with reduced installation time and cost.

QUALIFICATIONS:• UL 555 Classified Corridor Damper, 1 hr. Fire Resistance Rating (File #9492).• UL 555S Classified Smoke Damper, Leakage Class I at 250°F or 350°F

elevated temp. (File #9492).• California State Fire Marshal: Fire Damper Listing No. 3225-0935:106.• Meets the requirements of NFPA 90A, NFPA 92A for Fire/Smoke Dampers.• Meets the requirements of City of Los Angeles, Uniform Building Code.• Maximum velocity 2000 fpm @ 4" w.g. (up to 4000 fpm @ 8" w.g. with

specific actuators. Consult Nailor).

16" (406)STD.

4"(102)

VARIESDEPENDING ON

CEILING THICKNESS

GRILLE/DIFFUSER

4 MOUNTING TABS

UPPERRETAINING

ANGLE

SLEEVE I.D. = NOMINAL SIZE

SLEEVE



hat channel.


SLEEVE: 16" x 20 ga. (406 x 1.0) standard.

UPPER RETAINING ANGLES: 1 1/2" x 1 1/2" x 16 ga.(38 x 38 x 1.6) galvanized steel (by Nailor).

LINKAGE: Concealed in frame.



JAMB SEALS: Cambered stainless steel.

HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, with ERLonly, 350°F (176°C) available.MINIMUM SIZE: 8" x 8" (203 x 203).

MAXIMUM SIZE: 24" x 24" (610 x 610).

Model 1221C-1 (for use with Steel Grille/Diffuser)

Isometric View of typical Model 1221C-1 in 1 hour wood stud ceiling

Model: 1221C-1

Model 1221C-1

Revised February 23, 2005

AIRFOIL


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Revised September 16, 2004

CONSTRUCTION DETAILS:FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6)

galvanized steel hat channel.



UPPER RETAINING ANGLES: 1 1/2" x 1 1/2" x 16 ga. (38 x 38 x 1.6) galvanized steel (by Nailor).

LOWER RETAINING ANGLES: 1 1/2" x 1 1/2" x 16 ga. (38 x 38 x 1.6) galvanized steel by installing contractor (optionally by Nailor).





HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, withERL only, 350°F (176°C) available.MINIMUM SIZE: 8" x 8" (203 x 203).

MAXIMUM SIZE: 24" x 24" (610 x 610).

Model: 1221C-2 (For Ducted Installation)


16" (406)STD.

VARIESDEPENDING ON

CEILING THICKNESS

UPPERRETAINING

ANGLE

LOWERRETAINING ANGLE

SLEEVE

8"(203)


Isometric View of typical Model 1221C-2in 1 Hour wood stud ceiling.

Model: 1221C-2



@ 1" w.g. @ 4" w.g.(0.249 kPa) (0.995 kPa)

I 4 (0.020) 8 (0.041)

The 1221C Series Tunnel Corridor Combination Fire/SmokeDamper has been designed and qualified under UL 555S inorder to provide maximum system design flexibility. Theyare available with a Class I leakage rating with alldamper/actuator assemblies having been testedsuccessfully at an elevated temperature of 250°F (121°C) or350°F (176°C), depending on actuator, under airflow of2000 fpm (10 m/s) at 4" w.g. (0.995 kPa) (up to 4000 fpm @8" w.g. with specific actuators. Consult Nailor).

LEAKAGE CLASS

ERL (Electric Resettable Link) is standard on all dampers withelectric actuators. PRL (Pneumatic Replaceable Link) is standard onall dampers with pneumatic actuators.

CORRIDOR COMBINATION FIRE/SMOKE DAMPERS

MODELS: 1221C-1 / 1221C-2



LEAKAGE / ELEV. TEMP. 125 Class I @ 250°FRATINGS: 135 Class I @ 350°FCLOSURE DEVICE: ERL Electric Resettable Link



CLOSURE TEMPERATURE: 165 165°F (74°C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=350°F or 250°F/ Low=165°F


ACTUATORS: 411 Honeywell ML4115 (120 VAC)811 Honeywell ML8115 (24 VAC)MS4 Honeywell MS4X09 (120 VAC)MS8 Honeywell MS8X09 (24 VAC)4Y0 Honeywell MS4Y09 (230 VAC)F12 Belimo FSNF120 (120 VAC)F24 Belimo FSNF24 (24 VAC)412 Honeywell MS4120 (120 VAC)812 Honeywell MS8120 (24 VAC)462 Honeywell MS4620 (230 VAC)GD2 Siemens GGD221 (120 VAC)GD1 Siemens GGD121 (24 VAC)GD3 Siemens GGD321 (230 VAC)296 Siemens 331-2961 (25 psi)306 Siemens 331-3060 (25 psi)

ACTUATOR MOUNTING: EXT External MountINT Internal Mount

ACTUATOR LOCATION: RH Right-Hand MountLH Left-Hand Mount

UPPER ANGLES: UNM Not Factory MountedUFM Factory Mounted

ANGLE LOCATION: When Upper Angles are Factory Mounted, Specify Upper Angle Location on Sleeve(Model 1221C-1 only)




LOWER ANGLES: LNM Lower Angles supplied loose (not (Model 1221C-2 only) mounted)

TRANSITION COLLARS: SRT Top Transition for Round Duct Connection - Specify Diameter

SRB (Model 1221 C-2 only) Bottom Transition for Round Duct Connection - Specify Diameter

SR2 (Model 1221 C-2 only) Both Top and Bottom TransitionsFor Round Duct - Specify Diameter

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CORRIDOR COMBINATION FIRE / SMOKE DAMPERSMODELS: 1221C-1 / 1221C-2HOW TO ORDER:


Notes: 1. Models 1221C-1 and 1221C-2 are for Horizontal Mount applications only.2. * Standard sleeve is 16" (406) long x 20 ga. (1.0).3. A wide variety of steel GRILLES/DIFFUSERS are available with Model 1221C-1.

See Air Distribution Catalog or consult Nailor for selection assistance.4. MLS-300 Position Indicator is included as part of MLS-400 package.

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1221C-1 ie: 24" x 24" 125 ERL 165 20G EXT RH UNM 300

1221C-2 135 ML4 212 18G INT LH UFM EP1

PRL 250 16G EP2

350 14G LNM

HL 10G SRB

SRT

SR2

SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Corridor Dampers meeting or exceeding the following criteria: Frameshall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforced with die-formed corner gussetsfor strength. Blades shall be 14 ga. (2.0) equivalent galvanized steel formed double skin, airfoil design, on 5 1/2" (140) centers.Dampers shall be of opposed blade configuaration with an interlocking blade design that provides complete flame and smokeseal under fire conditions at an elevated temperature of 2000°F (1093°C) when in closed position. Dampers requiring bladeseals to maintain leakage class when under elevated temperature conditions are not acceptable. Blades axles shall be 1/2"(13) dia. plated steel, double bolted at each end of blade to ensure positive locking connection. Hex or square friction-fit orpress-fit axles are not acceptable. Bearings shall be zero-maintenance, concealed in frame, out of airstream. Jamb seals shallbe compression type cambered stainless steel.Dampers shall meet the requirements of NFPA 90A and 92A. Dampers shall be classified by Underwriters Laboratories andlabeled as 1 hour fire resistance rated Corridor Damper under UL 555, and as a Class I Leakage Rated Smoke Damper underUL 555S at an elevated temperature of (specifier select one) 250°F (121°C) or 350°F (177°C). Each damper shall bear a ULlabel verifying same. Dampers shall be supplied with factory installed sleeves of minimum 16" (406) length, to be field verifiedby contractor dependent upon ceiling thickness. Factory sleeves shall be caulked to UL requirements and shall be completewith factory supplied upper retaining angles of minimum 1 1/2" x 1 1/2" x 16 ga. (38 x 38 x 1.6) galvanized steel.Appropriate electric or pneumatic actuators (specifier select type) shall be installed by the damper manufacturer in the factoryand shall have been tested and classified under UL 555S with the damper, at an elevated temperature of (specifier selectone) 250°F (121°C) or 350°F (177°C). Actuators shall incorporate an OEM internal spring return mechanism. External after-market spring mechanisms are not acceptable. Damper and actuator assembly shall be factory cycled a minimum of threetimes to ensure correct operation.Each damper shall be equipped with a UL classified heat responsive device that will cause the damper to close in a controlledmanner and lock in a closed position by means of an over center/knee lock linkage when the duct temperature reaches themaximum degradation temperature of the damper/actuator assembly, as required by UL555S. Closure devices that causeinstantaneous closure are not acceptable. Damper manufacturer shall submit independent test data verifying pressure drop,leakage characteristics and airflow conditions.For applications where ductwork terminates at the ceiling, standard of acceptance shall be Nailor Industries Model 1221C-1.For applications where ductwork continues down past ceiling, standard of acceptance shall be Nailor Industries Model 1221C-2.

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G36

• TUNNEL CORRIDOR FIRE/SMOKE DAMPER

• UL555 1 HR RATING• UL555S CLASS I OR II

AT 250° OR 350°F

MODELS: 1271C-11271C-2

CORRIDOR FIRE/SMOKE DAMPERS • VEE BLADE

Nailor Models 1271C-1 and 1271C-2 Tunnel Corridor Combination Fire/Smoke Dampers are for use where ductwork penetratesthe ceiling of an interior corridor of a building, creating a horizontal opening that requires protection. Model 1271C-1 is suitable foruse with a steel grille or diffuser when the duct terminates at the ceiling. Model 1271C-2 is suitable for use when the duct isrequired to continue down past the ceiling level. Each unit is supplied factory mounted in a suitable sleeve complete with upperretaining angles. For applications where the duct terminates at the ceiling, other manufacturers require full length lower retainingangles with minimum 1" (25) ceiling overlap that protrudes past the grille/diffuser frame causing aesthetic difficulties. Model1271C-1 is provided with lower mounting tabs that are easily covered by available variety of Nailor steel grilles/diffusers, solvingthis problem. For Model 1271C-2, lower retaining angles are available from Nailor. Either way, Nailor provides complete protectionwith reduced installation time and cost.

QUALIFICATIONS:• UL 555 Classified Corridor Damper, 1 hr. Fire Resistance Rating (File #15441).• UL 555S Classified Smoke Damper, Leakage Class I or II at 250°F or 350°F

elevated temp. (File #9492).• California State Fire Marshal: Fire Damper Listing No. 3225-0935:110,

Leakage (Smoke) Damper Listing No. 3230-0935:111• Meets the requirements of NFPA 90A, NFPA 92A for Fire/Smoke Dampers.• Meets the requirements of City of Los Angeles, Uniform Building Code.• Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa).

16" (406)STD.

4"(102)

VARIESDEPENDING ON

CEILING THICKNESS

GRILLE/DIFFUSER

4 MOUNTING TABS

UPPERRETAINING

ANGLE


SLEEVEACTUATOR(LOCATION MAY VARY)


hat channel.

BLADES: 6" (152) wide on 5 1/2" (140) centers. 16 ga. (1.6) galvanized steel triple-vee design.


UPPER RETAINING ANGLES: 1 1/2" x 1 1/2" x 16 ga.(38 x 38 x 1.6) galvanized steel (by Nailor).





BLADE SEALS: Stainless steel.

HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, with ERLonly, 350°F (176°C) available.MINIMUM SIZE: 8" x 8" (203 x 203).

MAXIMUM SIZE: 24" x 24" (610 x 610).

Model 1271C-1 (for use with Steel Grille/Diffuser)

Isometric View of typical Model 1271C-1 in 1 hour wood stud ceiling

Model: 1271C-1

Model 1271C-1

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Revised May3, 2005


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CONSTRUCTION DETAILS:FRAME: 5" x 7/8" x 16 ga. (127 x 22 x 1.6)

galvanized steel hat channel.

BLADES: 6" (152) wide on 5 1/2" (140) centers. 16 ga. (1.6) galvanized steel triple-vee design.


UPPER RETAINING ANGLES: 1 1/2" x 1 1/2" x 16 ga. (38 x 38 x 1.6) galvanized steel (by Nailor).

LOWER RETAINING ANGLES: 1 1/2" x 1 1/2" x 16 ga. (38 x 38 x 1.6) galvanized steel by installing contractor (optionally by Nailor).





BLADE SEALS: Stainless steel.

HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, withERL only, 350°F (176°C) available.MINIMUM SIZE: 8" x 8" (203 x 203).

MAXIMUM SIZE: 24" x 24" (610 x 610).

Model: 1271C-2 (For Ducted Installation)

ERL (Electric Resettable Link) is standard on all dampers with electricactuators. PRL (Pneumatic Replaceable Link) is standard on alldampers with pneumatic actuators.


16" (406)STD.

VARIESDEPENDING ON

CEILING THICKNESS

UPPERRETAINING

ANGLE

LOWERRETAINING ANGLE

SLEEVE8"(203)


Isometric View of typical Model 1271C-2in 1 Hour wood stud ceiling.

Model: 1271C-2

Revised Revised May 3, 2005



@ 1" w.g. @ 4" w.g.(0.249 kPa) (0.995 kPa)

I 4 (0.020) 8 (0.041)

II 10 (0.051) 20 (0.102)

The 1271C Series Tunnel Corridor Combination Fire/SmokeDamper has been designed and qualified under UL 555S inorder to provide maximum system design flexibility. Theyare available with a Class I or II leakage rating with alldamper/actuator assemblies having been testedsuccessfully at an elevated temperature of 250°F (121°C) or350°F (176°C), depending on actuator, under airflow of2000 fpm (10 m/s) at 4" w.g. (0.995 kPa).

LEAKAGE CLASS

CORRIDOR COMBINATION FIRE/SMOKE DAMPERS

MODELS: 1271C-1 / 1271C-2



LEAKAGE / ELEV. TEMP. 125 Class I @ 250°F135 Class I @ 350°F225 Class II @ 250°F

RATINGS: 235 Class II @ 350°FCLOSURE DEVICE: ERL Electric Resettable Link



CLOSURE TEMPERATURE: 165 165°F (74°C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=350°F or 250°F/ Low=165°F


ACTUATORS: 411 Honeywell ML4115 (120 VAC)811 Honeywell ML8115 (24 VAC)MS4 Honeywell MS4X09 (120 VAC)MS8 Honeywell MS8X09 (24 VAC)4Y0 Honeywell MS4Y09 (230 VAC)F12 Belimo FSNF120 (120 VAC)F24 Belimo FSNF24 (24 VAC)412 Honeywell MS4120 (120 VAC)812 Honeywell MS8120 (24 VAC)462 Honeywell MS4620 (230 VAC)GD2 Siemens GGD221 (120 VAC)GD1 Siemens GGD121 (24 VAC)GD3 Siemens GGD321 (230 VAC)296 Siemens 331-2961 (25 psi)306 Siemens 331-3060 (25 psi)

ACTUATOR MOUNTING: EXT External MountINT Internal Mount

ACTUATOR LOCATION: RH Right-Hand MountLH Left-Hand Mount

UPPER ANGLES: UNM Not Factory MountedUFM Factory Mounted

ANGLE LOCATION: When Upper Angles are Factory Mounted, Specify Upper Angle Location on Sleeve(Model 1271C-1 only)




LOWER ANGLES: LNM Lower Angles supplied loose (not (Model 1271C-2 only) mounted)

TRANSITION COLLARS: SRT Top Transition for Round Duct Connection - Specify Diameter

SRB (Model 1271 C-2 only) Bottom Transition for Round Duct Connection - Specify Diameter

SR2 (Model 1271 C-2 only) Both Top and Bottom TransitionsFor Round Duct - Specify Diameter

G38


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Revised May 3, 2005


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CORRIDOR COMBINATION FIRE / SMOKE DAMPERSMODELS: 1271C-1 / 1271C-2HOW TO ORDER:


Notes: 1. Models 1271C-1 and 1271C-2 are for Horizontal Mount applications only.2. * Standard sleeve is 16" (406) long x 20 ga. (1.0).3. A wide variety of steel GRILLES/DIFFUSERS are available with Model 1271C-1.

See Air Distribution Catalog or consult Nailor for selection assistance.4. MLS-300 Position Indicator is included as part of MLS-400 package.

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1271C-1 ie: 24" x 24" 125 ERL 165 20G EXT RH UNM 300

1271C-2 135 ML4 212 18G INT LH UFM EP1

225 PRL 250 16G EP2

235 350 14G LNM

HL 10G SRB

SRT

SR2

SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Corridor Dampers meeting or exceeding the following criteria: Frameshall be constructed of 16 ga. (1.6) galvanized steel hat channel with mitered corners reinforced with die-formed corner gussetsfor strength. Blades shall be of vee-groove design, 16 ga. (1.6) galvanized steel, on 5 1/2" (140) centers and shall be of parallelconfiguration. Blades axles shall be 1/2" (13) dia. plated steel, double bolted at each end of blade to ensure positive lockingconnection. Hex or square friction-fit or press-fit axles are not acceptable. Bearings shall be zero-maintenance, concealed inframe, out of airstream. Jamb seals shall be compression type cambered stainless steel.Dampers shall meet the requirements of NFPA 90A and 92A. Dampers shall be classified by Underwriters Laboratories andlabeled as 1 hour fire resistance rated Corridor Damper under UL 555, and as a Class I or Class II Leakage Rated SmokeDamper under UL 555S at an elevated temperature of (specifier select one) 250°F (121°C) or 350°F (177°C). Each dampershall bear a UL label verifying same. Dampers shall be supplied with factory installed sleeves of minimum 16" (406) length, tobe field verified by contractor dependent upon ceiling thickness. Factory sleeves shall be caulked to UL requirements and shallbe complete with factory supplied upper retaining angles of minimum 1 1/2" x 1 1/2" x 16 ga. (38 x 38 x 1.6) galvanized steel.Appropriate electric or pneumatic actuators (specifier select type) shall be installed by the damper manufacturer in the factoryand shall have been tested and classified under UL 555S with the damper, at an elevated temperature of (specifier selectone) 250°F (121°C) or 350°F (177°C). Actuators shall incorporate an OEM internal spring return mechanism. External after-market spring mechanisms are not acceptable. Damper and actuator assembly shall be factory cycled a minimum of threetimes to ensure correct operation.Each damper shall be equipped with a (specifier select one) 165°F (74°C) or 212°F (100°C) or 250°F (121°C) or 350°F (177°C)UL classified heat responsive device that will cause the damper to close in a controlled manner and lock in a closed position bymeans of an over center/knee lock linkage when the duct temperature reaches the maximum degradation temperature of thedamper/actuator assembly, as required by UL555S. Closure devices that cause instantaneous closure are not acceptable.Damper manufacturer shall submit independent test data verifying pressure drop, leakage characteristics and airflow conditions.For applications where ductwork terminates at the ceiling, standard of acceptance shall be Nailor Industries Model 1271C-1.For applications where ductwork continues down past ceiling, standard of acceptance shall be Nailor Industries Model 1271C-2.

Revised May 3, 2005

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G40

• TRUE ROUND DESIGN• ULTRA LOW LEAKAGE• UL 555 CLASSIFIED

DYNAMIC FIRE DAMPER• UL 555S CLASSIFIED

SMOKE DAMPER

MODEL: 1290FS

Model 1290FS

TRUE ROUND FIRE/SMOKE DAMPERS

Nailor’s new round combination fire and smoke damper, Model 1290FS, is ideal for applications where building codesrequire both a fire damper to protect air system penetrations in walls or floors that have a fire resistance rating of up to 2hours and also require a leakage rated damper for operational smoke control in static or dynamic smoke managementsystems. The 1290FS is an economical true round combination fire/smoke damper designed and qualified for roundductwork passing through metal drywall partitions or masonry walls. Features of the damper include a sturdy beaded casingfor superior rigidity and factory supplied retaining plates for fast, secure installation. The 1290FS offers the lowest leakageclass available and is approved for vertical or horizontal installation. ERL JUNCTION BOX

OR PRL

CCWTO

OPEN

5 3/4" (146)

16" (406) STANDARD

Nom. dia.- 1/8" (3)

ACTUATORDRIVE SHAFT

INSTALLATIONRETAINING PLATES

INCLUDED

Wall Minimum

Thickness SleeveLength

4 to 8 (102 to 203) 16 (406)

10 to 12 (254 to 305) 19 (483)

14 to 16 (356 to 406) 23 (584)

QUALIFICATIONS:• UL 555 & CAN/ULC-S112 Classified Dynamic Fire Damper - 1 1/2 hr. Label.• UL 555S Classified Smoke Damper.

Leakage Class I at 250°F or 350°F elevated temp.• Meets NFPA 90A, NFPA 92A, BOCA, SBCCI, UBC, IBC and NBC

(Canada) requirements.• Maximum velocity 2000 fpm @ 4" w.g. (10 m/s @ 1 kPa).

CONSTRUCTION DETAILS:FRAME: 20 gauge (1.0) galvanized steel integral sleeve

and retaining plates.

BLADES: 2 x 20 gauge (1.0) galvanized steel laminated together, 14 gauge (2.0) equivalent thickness.

LINKAGE: Jackshaft to blade.



JACKSHAFT: 1/2" (13) dia. cadmium plated steel.

BLADE SEALS: Silicone rubber. Peripheral gasket sandwiched between two piece blade.

HEAT RESPONSIVE DEVICE (CONTROLLED CLOSURE):250°F (121°C) standard. 165°F (74°C), 212°F (100°C) and, with ERLonly, 350°F (176°C) available. ERL (Electric Resettable Link) is standardon all dampers with electric actuators. PRL (Pneumatic Replaceable Link)is standard on all dampers with pneumatic actuators.AVAILABLE SIZES: 6" (152) through 18" (457) diameter in nominal

2" (51) increments. Vertical or horizontal installation.

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MODEL: 1290FS

PERFORMANCE DATA:

HOW TO SPECIFY

300

100

200

3000

4000

6000

7000

.40

.02

.03

.04

.05

.06

.07

.08

.09

.20

.50

.60

.70

.30

1500

500

700

400

2000

1000

.10

.25

.15

5000

.015

.01

6" d

ia.

8" d

ia.

10"d

ia.

12"d

ia.

14"d

ia.

16"d

ia.

18"d

ia.

Air Volume in CFM (through face area)

Sta

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Pre

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rop

in in

ches

w.g

.

.3.2 3 4

4

.2

.3

.4

.5

.6

.7

.8

.9

2

567

3

1.5.5 .7.4 21

1.0

2.5

1.5

5

.15

.1

18" d

ia.

Air Leakage in CFM/sq. ft. (through face area)S

tati

c P

ress

ure

in in

ches

w.g

.

PRESSURE DROP (damper fully open) AIR LEAKAGE (damper closed)

Imperial figures shown.To convert to SI(metric) system:

Multiply:

CFM x .4719 = litersper second

inches w.g. x .2486= kilopascals

fpm x .00508 = metersper second

cfm per sq. ft. x 5.08 =liters/second per

sq. meter.

Leakage information is based upon a pressuredifferential of 1" w.g. tested per AMCA standard 500-D,fig. 5.5.

Tested per AMCA standard 500, Fig. 5.5.

SUGGESTED SPECIFICATION:Provide and install, as shown on plans and/or schedules, Round Combination Fire/Smoke Dampers as manufactured by NailorIndustries, meeting or exceeding the following criteria: Frame/integral sleeve shall be roll-formed from 20 ga. (1.0) galvanizedsteel, beaded for structural strength and grooved to accept 20 ga. (1.0) galvanized steel retaining plate. Required sleeve lengthshall be field verified by contractor. Each damper shall be complete with retaining plate and 20 ga. (1.0) galvanized steeldamper plate, supplied by the damper manufacturer to ensure proper fit and installation. Blade shall be of two 20 ga. (1.0)galvanized steel pieces laminated together with an equivalent thickness of 14 ga. (2.0). Blade seal shall be silicone rubbersandwiched between blade pieces and shall completely encircle blade periphery. Blade axles shall be 1/2" (13) dia. plated steeldouble bolted to blade. Hex or square friction-fit or press-fit axles are not acceptable. Bearings shall be self-lubricating oilitebronze type.

Dampers shall meet the requirements of NFPA 90A, 92A and 92B. Dampers shall be classified by Underwriters Laboratoriesand labeled as a 1 1/2 hour Dynamic Fire Damper under UL 555, and as a Class I Leakage Rated Smoke Damper under UL555S at an elevated temperature of 350°F (177°C). Dampers shall be qualified for use in dynamic or static smoke controlsystems.

Appropriate electrical or pneumatic actuators (specifier select type) shall be installed by the damper manufacturer in thefactory and shall have been tested and classified under UL555S with the damper at an elevated temperature of 250°F (121°C)or 350°F (177°C). Actuators shall incorporate an OEM internal spring mechanism. External after-market spring mechanismsare not acceptable. Damper and actuator assembly shall be factory cycled a minimum of three times to ensure correctoperation.

Each damper shall be equipped with UL Classified heat responsive device that will cause the damper to close in a controlledmanner and lock in a closed position by means of an over-center/knee lock linkage when the duct temperature reaches themaximum degradation temperature of the damper/actuator assembly as required by UL555S. Closure devices that causeinstantaneous closure are not acceptable.

Damper manufacturer shall submit independent test data verifying pressure drop, leakage characteristics and airflowconditions. Standard of acceptance: Nailor Industries Model 1290FS.


ROUND COMBINATION FIRE / SMOKE DAMPER

MODEL: 1290FS




ELEVEVATED TEMPERATURE: 250 250°F (121°C)350 350°F (177°C)



CLOSURE TEMPERATURE: 165 165°F (74°C)212 212°F (100°C)250 250°F (121°C)350 350°F (177°C)HL (must select with MLS-400) High=350°F/Low=165°F

SLEEVE LENGTH: Specify Sleeve Length: Minimum sleeve length is 16" (406)(supplied as standard)

ACTUATORS: MS4 Honeywell MS4X09F (120V)MS8 Honeywell MS8X09F (24V)296 Siemens 331-2961 (25 psi)




ROUND COMBINATION FIRE / SMOKE DAMPER

MODEL: 1290FS

HOW TO ORDER:

Select model number and size, then select from each variable. Choose accessories as desired. See above fordescription of variables and accessories.

Notes: 1. * Maximum closure temperature allowed is equal to elevated temperature rating. HL(high/low temps.) must be selected when MLS-400 is selected as closure device.

2. ** Standard sleeve is 16" (406) long (suitable for 4" (102) up to 8" (203) thick wall).3. MLS-300 is included as part of MLS-400 package.

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HOW TO ORDER

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1290FS ie: 12" V 250 ERL 165 MS4 300

or H 350 ML4 212 MS8 EP1

305 (mm) PRL 250 296 EP2

dia. 350

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DAMPER CONTROL PANELS

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The DCP1 is a toggle switch operated control panel with positionindicator lights for use with Nailor Combination Fire/SmokeDampers equipped with the MLS-400 Reopenable Control Option.The DCP1 provides the ability to open or close the damper in adynamic smoke management system or to test the damper.Indicator lights on the DCP1 panel provide visual confirmation of thedamper position.

The toggle switch is a 3 position control switch with the followingoptions:

NORMAL: Damper remains open until closed by the primary heatsensor or smoke detector signal.

CLOSED: Damper closes and remains closed regardless of any sensor signal.

REOPEN: The damper opens and remains open (override position) until the secondary hi-limit sensor signals the damper to close and lock.

The DCP1 is shipped loose for field mounting and wiring either near the damper or in a remote location.

DCP1/MLS-400 with Honeywell rotary cam type position indicator package

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

BLK

BLK

3 POSITIONCONTROL

SWITCH ACTUATOR

NORMAL

REOPEN

WHT(BLK)

BLK(RED)

MS2 DAMPER CLOSEDMICROSWITCH

BLK/RED

BLK/BLU

WHT/RED

WHT/BLU

YEL

BLU

MS1 DAMPER OPENMICROSWITCH

CLOSED

SHIPPED LOOSEFOR FIELD WIRING

MOUNTED ON DAMPER (FACTORY WIRINGTERMINATES AT SPLICE POINTS INDICATED)

SMOKEDETECTOR(IF USED)

PRIMARYHEAT

SENSOR(165F)

SECONDARYHEAT

SENSOR(250 or 350F)

M

MBRNBRN

ORG

120 VAC. (24 VAC)

ADDITIONAL ACTUATOR(S)IF REQUIRED

DCP1 MLS-400

4" x 4" electrical box

DCP1/MLS-400 with Nailor or Honeywell built-in (actuator aux. switches) position indicator package

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

BLK

BLK

3 POSITIONCONTROL

SWITCH ACTUATOR

NORMAL

REOPEN

WHT(BLK)

BLK(RED)


YEL

BLU

YEL

BLU

YEL

BLU


CLOSED




PRIMARYHEAT

SENSOR(165F)

SECONDARYHEAT

SENSOR(250 or 350F)

M

MBRNBRN

ORG

120 VAC. (24 VAC)


DCP1 MLS-400

4" x 4" electrical box

WIRING DIAGRAMS:

• TOGGLE SWITCH WITHLIGHTS

• FOR USE WITHCOMBINATION FIRE/SMOKEDAMPERS WITH MLS-400

MODEL: DCP1www.nailor.com

CLOSED

OPEN

REOPENCLOSEDNORMAL

2 1/8"(54)

5"(127)

4"(102)

4"(102)

5"(127)


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• KEY SWITCH WITH LIGHTS• FOR USE WITH

COMBINATION FIRE/SMOKEDAMPERS WITH MLS-400

MODEL: DCP2

The DCP2 is a key switch operated control panel with positionindicator lights for use with Nailor Combination Fire/Smoke Dampersequipped with the MLS-400 Reopenable Controls Option. The DCP2provides the ability to open or close the damper in a dynamic smokemanagement system or to test the damper. Indicator lights on theDCP2 panel provide visual confirmation of the damper position.

The key switch is a 3 position control switch with the followingoptions:

NORMAL: Damper remains open until closed by the primary heatsensor or smoke detector signal.

CLOSED: Damper closes and remains closed regardless of any sensor signal.

REOPEN: The damper opens and remains open (override position) until the secondary hi-limit sensor signals thedamper to close and lock.

The DCP2 is shipped loose for field mounting and wiring either near the damper or in a remote location.

www.nailor.com

2 1/8"(54)

5"(127)

4"(102)

4"(102)

5"(127)

CLOSED

CLOSED

OPEN

REOPEN

NORMAL

DCP2/MLS-400 with Honeywell rotary cam type position indicator package

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

BLK

BLK

3 POSITIONCONTROL

SWITCH ACTUATOR

NORMAL

REOPEN

WHT(BLK)

BLK(RED)


BLK/RED

BLK/BLU

WHT/RED

WHT/BLU

YEL

BLU


CLOSED




PRIMARYHEAT

SENSOR(165F)

SECONDARYHEAT

SENSOR(250 or 350F)

M

MBRNBRN

ORG

120 VAC. (24 VAC)


DCP2 MLS-400

DCP2/MLS-400 with Nailor or Honeywell built-in (actuator aux. switches) position indicator package

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

BLK

BLK

3 POSITIONCONTROL

SWITCH ACTUATOR

NORMAL

REOPEN

WHT(BLK)

BLK(RED)


YEL

BLU

YEL

BLU

YEL

BLU


CLOSED




PRIMARYHEAT

SENSOR(165F)

SECONDARYHEAT

SENSOR(250 or 350F)

M

MBRNBRN

ORG

120 VAC. (24 VAC)


DCP2 MLS-400

4" x 4" electrical box 4" x 4" electrical box

WIRING DIAGRAMS:


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The DCP3 is a single control panel containing indicator lights onlyand is for use with Nailor Smoke and Combination Fire/SmokeDampers equipped with the MLS-300 Position Indicator Package.The green light indicates damper is open and the red light indicatesdamper is closed. Model DCP3 is shipped loose for field mounting and wiring eithernear the damper or in a remote location.

DCP3 with MLS-300 (Nailor or Honeywell built-in aux. switches) position indicator package

DCP3 with MLS-300 (Honeywell rotary cam type) position indicator package

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)


BLU BLU

YEL YEL



MOUNTED ON DAMPER (FACTORY WIRING TERMINATES AT SPLICE POINTS INDICATED)

DCP3 MLS-300

120 VAC. (24 VAC)

BLK YEL

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

MS2 DAMPER CLOSEDLOWER MICROSWITCH

WHT/RED

BLK/RED

BLU

BLK YEL

WHT/BLU

BLK/BLU

MS1 DAMPER OPENUPPER MICROSWITCH

MOUNTED ON DAMPER (FACTORY WIRING TERMINATES AT SPLICE POINTS INDICATED)


DCP3 MLS-300

120 VAC. (24 VAC)

WIRING DIAGRAMS:

• LIGHTS ONLY• FOR USE WITH ALL SMOKE

AND COMBINATIONFIRE/SMOKE DAMPERS

MODEL: DCP3www.nailor.com

2 1/8"(54)

5"(127)

4"(102)

4"(102)

5"(127)

CLOSED

OPEN


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DCP4 for combination fire/smoke dampers with MLS-300(Honeywell rotary cam type) position indicator package

DCP4 for combination fire/smoke dampers with MLS-300 (Nailor or Honeywell built-in aux. switches) position indicator package

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

BLK

BLK

CONTROL SWITCH

ACTUATOR

OPEN WHT(BLK)

BLK(RED)


BLK/RED

BLK/BLU

WHT/RED

WHT/BLU

YEL

BLU


CLOSED




HEATSENSOR

M

M

ORG

120 VAC. (24 VAC)


DCP4 ERL/MLS-300

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

BLK

BLK

CONTROL SWITCH

ACTUATOR

OPEN WHT(BLK)

BLK(RED)


BLK/RED

BLK/BLU

WHT/RED

WHT/BLU

YEL

BLU


CLOSED




HEATSENSOR

M

M

ORG

120 VAC. (24 VAC)


DCP4 ERL/MLS-300

4" x 4" electrical box 4" x 4" electrical box

• TEST SWITCH WITH LIGHTS• FOR USE WITH ALL SMOKE

AND COMBINATIONFIRE/SMOKE DAMPERS

MODEL: DCP4

The DCP4 is a "momentary" push button operated control panelwith indicator lights for use with all Nailor Smoke and CombinationFire/Smoke Dampers. The push button switch provides the ability to"cycle test" the damper by pushing and holding down the button untilthe damper has cycled closed. The indicator lights on the DCP4panel provide a visual confirmation of the damper position whenconnected to the MLS-300 Position Indicator Package.The DCP4 is shipped loose for field mounting and wiring either nearthe damper or in a remote location.

www.nailor.com

2 1/8"(54)

5"(127)

4"(102)

4"(102)

5"(127)

PUSH TO TESTOPEN

CLOSED

WIRING DIAGRAMS:


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Nailor combination fire and smoke dampers are tested by and listed with Underwriters Laboratories Inc. and aremanufactured within UL procedural requirements. Approved variables including a variety of options and accessories areavailable to suit specific applications.

CLOSURE DEVICES:

The ERL Electric Resettable Link (heat sensor) replaces the traditional hi-torquespring/fusible link fire closure mechanism on all Nailor combination fire/smokedampers ordered with an electric actuator. The ERL is a thermally responsivebimetal disc/thermostat that opens and closes electrical contacts at a specificcalibrated temperature. The ERL is a UL Classified Heat Responsive Device.

The standard ERL on Nailor combination fire/smoke dampers has a fixed temperature setting of 250°F (121°C) which is the UL listed elevated/degradation temperature of the damper/actuator assembly. A 350°F (177°C)elevated temperature classification and ERL is available as an option.

A 165 and 212°F (74 and 100°C) ERL are also available. Local codes have specified 165°F (74°C) widely in the past.

The ERL performs the same function as the fusible link it supercedes, that is to sense an abnormally high temperature, ascaused by a fire and allow the damper to close in order to prevent the spread of fire and smoke. The sensor interruptspower to the actuator and the actuator’s spring return mechanism causes the damper to close and lock.

In smoke control mode, when a signal is detected via a normally closed smoke detector connection, the damper will closeand remain closed until the smoke signal ceases. The system will then reset when power is re-applied and the damper willopen. The damper may be closed at any time by placing a control switch (optional and by others) in the closed position.

The ERL sensor is of the manual reset type and can be reset after the temperature has cooled down below the sensor setpoint. This feature is a tremendous advantage where periodic system testing involves application of heat to the sensor toverify correct damper operation. Exposure to actual fire conditions may render these devices unusable. In this case, it isrecommended that a careful inspection of the damper, actuator and ERL be performed.

The ERL in combination with all Nailor qualified electric (or pneumatic) actuators provides controlled closure and eliminatesthe instantaneous damper closure associated with traditional fusible links that can cause damage to the ductwork.

The ERL requires factory installation and wiring together with the associated actuator to meet UL requirements. Note thatdampers provided with pneumatic actuators utilize the PRL (see below) as standard (max. 250°F (121°C)) but can beprovided with the ERL. An EP switch is required in this case.

Options and Variables

The Nailor PRL Pneumatic Replaceable Link is a UL Classified heat responsivedevice used in conjunction with Nailor combination fire/smoke dampers.

The PRL is supplied as standard on all combination fire/smoke dampers orderedwith a pneumatic actuator (max. 250°F (121°C)). An alternative to the PRL wouldbe the Nailor ERL (Electric Resettable Link) with an EP (Electric/Pneumatic) switch.

The PRL is a factory mounted pneumatic release valve/replaceable fusible link assembly. The PRL’s function is to sense anabnormally high temperature, as caused by a fire and allow the damper to close in order to prevent the spread of fire and smoke.

Fire Control Mode: The PRL activates when a fire temperature in excess of 165, 212 or 250°F (74,100 or 121°C) isdetected. When the fusible link melts, air from the pneumatic actuator(s) is exhausted and the actuator spring returnmechanism causes the damper to close and lock.

Smoke Control Mode: When a signal is detected via a normally closed smoke detector connection, during system testingor if power failure occurs, the damper will close and remain closed. When the smoke signal ceases (smoke detector reset),the test is completed or power is restored, the damper will automatically reset to the open position.

An EP (electric/pneumatic) switch, by others, must be present in the system.

All pneumatic actuators are factory mounted with a fail close (Normally Closed) damper connection.

Notes:1. The PRL must be installed at the factory and cannot be added in the field, in accordance with UL requirements.2. A single PRL may be use to control up to a maximum of four pneumatic actuators.3. Pneumatic actuators are to be field piped per local codes.

OPTION CODE ERLELECTRIC RESETTABLE LINK

OPTION CODE PRLPNEUMATIC REPLACEABLE LINK

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Nailor combination fire and smoke dampers are tested by and listed with Underwriters Laboratories Inc. and aremanufactured within UL procedural requirements. Approved variables including a variety of options andaccessories are available to suit specific applications.

CLOSURE DEVICES:

OPTION CODE ML4MLS-400 FIRE SENSORREOPENABLE CONTROL PACKAGE

HOW THE MLS-400 WORKS:UL 555 permits Combination Fire/Smoke dampers to be equipped with botha primary (low limit) and secondary (high limit) heat responsive closuredevice. This allows the appropriate authority (from a remote fire fighters’smoke control station) to bypass/override the primary sensor, usually 165°F(74°C), after fire induced closure or smoke detector signal and reopen thedamper as may be required for smoke control functions. The damper canbe operated in this ‘override mode’ until the elevated temperature limit of350°F (177°C) is sensed at the damper. The secondary heat responsivedevice, a 350°F (177°C) manually resettable heat sensor, then returns it tothe fire protection mode, permanently reclosing the damper and renderingit inoperable, as required by UL 555 and NFPA 90A.

The built-in damper position indicator switch provides positive indication ofeither fully open or closed damper status.

• REOPENABLE SENSOR WITH POSITION INDICATOR SWITCH PACK

• FOR USE IN ENGINEERED SMOKE CONTROL SYSTEMS

The MLS-400 Fire Sensor is a UL Classified reopenable control/ statusindicator package option that is factory installed by Nailor Industries onModel Series 1220, 1270, or 1290FS Combination Fire / Smoke dampers.

A WORD ABOUT "REOPENABLE" CONTROLS....The dual temperature rated reopenable closure option was originally developed during the 1980's to comply with NFPA 90Arequirements that mandated the primary (low limit) closure temperature to be a maximum of 286°F (141°C). The dualtemperature closure option permits the damper to close when the primary closure temperature rating of 286°F (141°C) orless (usually 165°F (74°C)) is reached, then be reopened to utilize the duct for smoke removal until the secondary (high limit)closure device temperature rating, usually 350°F (176°C) is reached.The 1996 edition of NFPA 90A revised the maximum primary closure temperature to 350°F (176°C) or the elevatedtemperature rating of the damper (maximum 350°F (176°C)). This revision virtually eliminates the need for a "reopenable"type control system as the damper can now remain operational during the HVAC system's designed smoke control modeuntil 350°F (176°C) is reached. However, there is still a misconception that this dual temperature rating option is necessaryto meet the requirements of both NFPA and UL, as well as local building codes, in order for the damper to be utilized forsmoke removal until its elevated temperature rating is reached. Although it does provide a method of complying with somebuilding codes that require fire dampers to close at 212°F (100°C) or less, while still providing the potential to reopen thedamper for smoke removal reasons, in most cases the disadvantages render it obsolete. The cost of the additional wiringand intricate controls required, when compared to the cost of a single 350°F (176°C) closure device, can rarely be justified.Also the complexity of the design may in fact hinder its proper use if personnel are not properly trained, at further cost, tooperate it during an emergency.Therefore, as the dual temperature rated closure option and its associated higher costs are no longer required to comply withNFPA 90A, Nailor recommends using a 350°F (176°C) closure device in engineered smoke control systems as the logicalselection. If the system is designed to accommodate damper open/closed status indication, Nailor's MLS-300 PositionIndicator option provides a simple, functional means to a complete smoke control package.


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Revised July 8, 2004



CLOSURE DEVICES:

ADVANTAGES OF NAILOR’S EXTERNAL LOW LIMIT HEAT SENSORNailor's MLS-400 Fire Sensor features a low-limit heat sensor that is mounted outside the duct adjacent to the actuatorrather than inside the duct. As most fires originate outside the duct, which is commonly insulated, an internally mountedheat sensor would not trip as early. And as most actuators and electrical wiring are located on the external surfaces ofthe sleeve, they could be subjected to damaging temperatures long before an internally mounted heat sensor trips.Nailor’s MLS-400 Fire Sensor ensures that the damper will close within the temperature limits of the actuator andbefore any damage to external components can occur.

The MLS-400 may be used with either a UL Listed Electric Actuator or Pneumatic Actuator. Connections to the junction box are the same.

WITH UL LISTED ELECTRIC ACTUATOR WITH UL LISTED PNEUMATIC ACTUATOR

With UL Listed Pneumatic ActuatorDescription:1. Electrical Junction Box with external 165OF (74OC)

primary heat sensor and EP switch2. High limit secondary heat sensor 250O or 350OF(121O or 177OC)3. Position indicator package4. Pneumatic Actuator5. Silicone tubing6. Flexible Conduit7. Over-Center Knee Lock8. Jackshaft

1

67

5

43

2

With UL Listed Electric ActuatorDescription:1. Electrical Junction Box with external 165OF (74OC)

primary heat sensor2. High limit secondary heat sensor 250O or 350OF(121O or 177OC)3. Electric Actuator with auxiliary position indicator switches4. Flexible Conduit5. Over-Center Knee Lock6. Jackshaft

2

1

4

3

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CLOSURE TEMPERATURE:

ERL/PRL’s for Model Series 1220, 1270, and 1290FS combinationfire/smoke dampers are available with a choice of several closuretemperature ratings. Nailor combination fire/smoke dampers areequipped as standard with a 250°F (121°C) ERL or PRL. Available 165°F(74°C), 212°F (100°C), and, with ERL only 350°F (177°C) heat sensorscan be installed on damper at time of manufacturing.

The National Fire Protection Association Standard 90A requires that combination fire andsmoke dampers that are part of an engineered smoke-control system shall have a heatresponsive device with a temperature rating approximately 50°F (28°C) above themaximum smoke-control system designed operating temperature, but not to exceed the UL555S elevated temperature rating of the damper assembly or a maximum of 350°F (177°C).

OPTION CODES165 212 250 350CLOSURE TEMPERATURE

UL 555 Closure Temperature RequirementsAs of July 01 / 2002, UL 555 Safety Standard for Fire Dampers, Sixth Edition (June 1999)requires that combination fire and smoke dampers have a heat responsive device ofminimum 160°F (71°C), maximum 350°F (177°C) temperature rating but it cannot begreater than the UL 555S elevated temperature rating of the damper assembly. Forreopenable combination fire and smoke dampers the temperature rating of the primaryheat responsive device must be minimum 160°F (71°C), maximum 212°F (100°C). Thetemperature rating of the secondary heat responsive device must be greater than that ofthe primary device, but cannot exceed 350°F (177°C) or the UL 555S elevatedtemperature rating of the damper assembly.

Nailors’ MLS-400 Fire Sensor reopenable control package utilizes twoseparate heat responsive devices to automatically close the damper: a‘low limit’ primary device rated at 165°F (74°C) or 212°F (100°C) thatcloses the damper upon sensing heat at selected temperature, but canbe overridden from the fire fighters smoke control station to reopendamper for smoke control purposes; a ‘high limit’ secondary device of

either 250°F (121°C) or 350°F (177°C) temperature rating that permanently re-closes thedamper upon sensing heat at selected temperature, rendering it inoperable, as required byUL 555 and NFPA 90A. The high limit temperature rating cannot be higher than the elevatedtemperature rating of the damper assembly as determined by UL 555S Standard for SmokeDampers. As NFPA 90A requires that the closure device shall have a temperature ratingapproximately 50°F (28°C) above the maximum smoke control system designed operatingtemperature, the low limit (primary closure device) temperature rating, either 165°F (74°C)or 212°F(100°C) should be selected based on this criteria.When selecting the high limit secondary device temperature rating (either 250°F (121°C) or350°F (177°C), Nailor recommends 350°F (177°C), as this will provide additional time forthe damper to be utilized in smoke control mode until it is closed permanently. Rememberthat the high limit temperature selected can not be higher than the elevated temperaturerating of the damper assembly as determined by UL555S.

OPTION CODE HLHIGH/LOW CLOSURE TEMPS.FOR MLS-400 FIRE SENSOR



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POSITION INDICATORS:

OPTION CODE 300MLS-300 POSITION INDICATORSWITCH PACK

The MLS-300 Series Position Indicator Switch Pack is generallyutilized to indicate open and closed position of the damper blades. Itincorporates two SPDT switches that may be used to operate signallamps or to provide a start / stop circuit for remote fans or to signalalarms.

MLS-300’s are used in active smoke controlmanagement systems to positively indicate the

status of all combination fire / smoke and smokedampers in the building. The MLS-300 is

available only as a factory installed optionon combination fire / smoke and smokedampers.Features:• Operates as a function of the damperblade position.• Provides remote indication of damperblade position.• Provides the ability to remotelycontrol ON/OFF fan stations.• Provides the ability to remotely signalalarms.

1

67

5

43SWITCH PACK

2

3

NAILOR INDUSTRIES INC.MLS-300

Built-in Actuator Switch PacksMany of the newer application specific actuators designed for use on fire/smokedampers feature "add-on" component position indicatorswitches manufactured and UL tested by the actuatormanufacturer. Honeywell ML4115/ML8115 andMS4X09/MS8X09 actuators are examples.Some actuator models have variants with positionindicator switches built right in to the actuator.Honeywell MS4120F/MS8120F and BelimoFSNF24S/FSNF120S actuators are examples.When ordered with the MLS-300 Position IndicatorSwitch Pack, Nailor combination fire/smoke andsmoke dampers that utilize these actuators willusually be supplied with the actuator mounted switchpack, factory installed as required by UL.


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MLS-300 TYPICAL WIRING DETAILS

POSITION INDICATORS:

NAILOR MLS-300 SWITCH DETAILS

Position Indicator Microswitch Data:Switch Type: Single Pole double throw (2)15 Amps, 1/3 HP, 125, 250 Vac or 24 Vdc.1/2 Amp, 125 Vdc. 1/4 Amp, 250 Vdc.Standard Mounting:MS1 is damper open signal. MS2 is damper closed signal.Non-Standard Mounting:Important: Installer must double check continuity of MS1 andMS2 before wiring to determine which switch signals thedamper’s open or closed position.



L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)


BLU BLU

YEL YEL


REMOTE CONTROLSTATION

(BY OTHERS)

MOUNTED ON DAMPER (FACTORY WIRING TERMINATES

AT SPLICE POINTS INDICATEDINSIDE SWITCH BOX)

EXTERNAL RIGHT HAND MOUNTING: FRONT VIEW (LESS COVER)

COVER

A A

2 7/

8" (7

3)

3" (7

6)

4 1/8" (105)

MS-2

MS-1

BLUE

YELLOW

SECTION A - A

JACKSHAFT /DRIVESHAFT EXTENSION CONDUIT

CONNECTION

DUCT ORSLEEVE 13/16"

(21)

JACKSHAFTMOUNTING BRACKET


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ELECTRO-PNEUMATIC SWITCHES:

Nailor Options EP1 and EP2electro-pneumatic switchesare electrically operated,two-position 3-way airvalves. They are used tointerlock an electrical smokeor fire alarm system with apneumatic damper actuator.The EP1 (120 VAC) andEP2 (24 VAC) valves areutilized to alternately applypressure to, and exhaustpressure from a pneumaticdamper actuator by anelectrical input thatenergizes or de-energizesthe solenoid of the switch.

Barb type pneumatic piping connections are sized for 1/4" (6) O.D.Polyethylene tubing. Units are UL and CSA approved and may bemounted in any position.

OPERATION:Input air is connected to port 1 (normally closed) and the output to theactuator is connected to port 3 (common). When the solenoid isenergized port 1 connects to port 3 allowing the actuator to be controlledby input air, usually holding the damper in open position. When thesolenoid is de-energized, port 2 (normally open) is connected to port 3,exhausting the air from the actuator allowing it to return to its normal failposition (fail open or fail closed).

ENERGIZED:

COMPRESSED AIR SUPPLY

EP1/EP2SWITCH

ELECTRICAL JUNCTION BOX/SENSOR SWITCH

ACTUATOR

VENT

DE-ENERGIZED:

1

3

2

1

3

2

1

1 INPUT AIR PORT(NORMALLY CLOSED)

2 VENTING PORT(NORMALLY OPEN)

3 OUTPUT AIR PORT(COMMON)

2

3

OPTION CODES EP1 and EP2EP1 120 VAC E/P SWITCHEP2 24 VAC E/P SWITCH


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RETAINING ANGLES:

The majority of installing contractors view fire damper installation as a costly time consuming and troublesomeprocedure. Eight conventional angles must be custom fabricated for each damper either in a sheet metal shop or at thejob site and sized to suit each individual damper. Invariably, they are mislaid or lost and must be matched to each factorysupplied damper. The Nailor “Quick-Set” solution solves the majority of problems. They are pre-formed to fit eachdamper and shipped with the individual damper units for ultimate convenience. Option Code QS1 provides a single set of angles for applications requiring angles on one side of the damper only. Option Code QS2 provides the complete kit of two sets of angles suitable for most applications that require angles onboth sides of the damper. “Quick-Set” angles are supplied with correctly spaced pre-drilled screw-holes to ensure a quick, easy and accurateinstallation for all Nailor fire dampers - no measuring required.“Quick-Set” retaining angles when specified and supplied with Nailor integral sleeve fire dampers provide the “complete”installation package. Simple, fast, convenient.

FOR USE WITH ALL COMBINATION FIRE / SMOKEDAMPERS EXCEPT MODEL 1290FS

OPTION CODES QS1, QS2'QUICK-SET' RETAINING ANGLES

BENEFITS:• Factory fabricated by the manufacturer to suit

the individual fire damper. • Dampers can ship directly to the job site

complete with all necessary installation sheet metal hardware (saves on double handling at contractor’s shop).

• Reduced cost when compared to conventional retaining angles.

• Only two sets of angles to handle per damper (rather than eight).

• Angles ship with individual damper - no sorting or matching.

• Pre-drilled holes on 8" (203) centers to ensure correct angle/sleeve attachment.

• Help ensure a correct installation as per U.L. approved installation instructions.

• Maximum Size: 90" x 48" (2286 x 1219) or 48" x 90" (1219 x 2286)


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Revised July 8, 2004



OPTION CODE SMPSIDE MOUNTING PLATE

Although not recommended, Nailors SMP Side Mounting Plate provides amethod of factory installing an externally mounted actuator onto Model Series1220 and 1270 combination fire/smoke dampers. UL 555 and UL 555S safetystandards latest editions assert that effective June 1, 2000, actuators shall befactory mounted securely in position. This is to help ensure that thedamper/actuator assembly functions properly and eliminates possible jobsiteinstallation errors. As with all combination fire/smoke dampers, anappropriate steel sleeve is required for installation of damper in wall or floor.

TYPE A SLEEVESMODELS 1221 and 1271

Nailor strongly recommends that all combination fire/smoke dampersincluding Type A models, are specified and ordered complete with a factoryinstalled full sleeve (Type B and C models are manufactured as standard withtransition casing that acts as a sleeve). A factory installed sleeve allows theunits to ship directly to jobsite ready for installation, saving time, money andcostly field fabrication and mounting, as well as helping to ensure properinstallation to UL requirements. As all combination fire/smoke dampers arerequired to be mounted in a sleeve, and all actuators must be factorymounted (effective June 1, 2000 per UL 555/555S latest editions), a factoryinstalled sleeve provides the easiest and most cost effective method toaccomplish this as well as ensuring that the damper/actuator assemblyfunctions properly. Standard sleeve is 16" (406) long. See Models 1221 and1271 for further damper/sleeve details.

5"(127)

16"(406)WIDTH = NOM.

DUCT SIZE-1/8" (3)

HEIG

HT=

NOM

. DUC

T S

IZE

- 1/4

" (6)

SIDE MOUNTING PLATE FOR COMBINATIONFIRE/SMOKE DAMPERS

STANDARD WITH TYPE AMODEL # SLEEVE

1220 MODEL 12211270 MODEL 1271

The following indicates model numbers toorder for combination fire/smoke damperswith factory fitted Type A sleeves:

16" (406) STD.

12" (305) MIN.

HEIG

HT =

NO

M. D

UCT

SIZE

W = NOM. DUCT SIZE

SLEEVES ORSIDE MOUNTING PLATE:


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Revised April 4 , 2005

FLANGED SLEEVE

OPTION CODES TDF1, TDF2TDF FLANGE


Maximum TDF1/TDF2 Sleeve Size Allowed:

For Curtain Type Fire Damper: 60" wide x 60" high (1524 x 1524).

For Multi-Blade Type Fire Damper: 36" wide x 48" high (914 x 1219).

TDF (by Engle) and TDC(by Lockformer) proprietaryflange systems areapproved as breakawayconnections for connectinga combination fire/smokedamper Type A sleeve (22or 20 gauge) to ductwork.They may be used in placeof the approved slip joints shown in standardinstallation instructions.

For Option TDF1 the sleeve is factory flanged on one end only.For Option TDF2 the sleeve is factory flanged on both ends.Note that the maximum wall/floor opening size permitted by UL, relative tothe damper size, may not physically allow the flange to fit through theopening. Consultation and co-ordination with the wall/floor contractor isrecommended. TDF1, flange on one end only, will permit the non-flangedend of the sleeve to fit through the opening.


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DAMPER TEST SWITCH

OPTION CODE DTSPUSH BUTTON TEST SWITCH


L2L1

BLKBLK

ELECTRICACTUATOR OR

EP SWITCH

WHT

MOUNTED ON DAMPER (FACTORY WIRING TERMINATES AT SPLICEPOINTS INDICATED INSIDE 4" x 4" ELECTRICAL BOX)

HEATSENSOR

(ERL)

MBLK(BLK)(RED)

WHTBLKBLKBLK(BLK)(RED)

120 VAC. (24 VAC)

PUSHBUTTON

TEST SWITCH(DTS)

L2L1

CLOSED (RED LIGHT)

OPEN (GREEN LIGHT)

CONTROL SWITCH

NORMAL

MS2 DAMPER CLOSEDLOWER MICROSWITCH

WHT/RED

WHT/BLU

BLK/RED

BLK/ BLU

MS1 DAMPER OPENUPPER MICROSWITCH

CLOSED

REMOTE CONTROLSTATION

(BY OTHERS)

4" x 4" ELECTRICAL BOX

MOUNTED ON DAMPER (FACTORYWIRING TERMINATES AT SPLICE

POINTS INDICATED)


120 VAC. (24 VAC)

ELECTRICACTUATOR OR

EP SWITCH

HEATSENSOR

(ERL)

PUSHBUTTON

TESTSWITCH

(DTS)

M

BLKBLK

ELECTRICACTUATOR OR

EP SWITCH

WHT

HEATSENSOR

(ERL)

MBLK(BLK)(RED)

PUSHBUTTON

TEST SWITCH(DTS)

Figure 1. DTS / ERL Damper Test Switch with ElectricResettable Link

Figure 2. DTS / ERL with MLS-300 (Honeywell) PositionIndicator Package (rotary cam type)

The DTS (Damper Test Switch) is an optional “momentary” push button test switchavailable on all Nailor smoke and combination fire / smoke dampers. The DTSprovides the ability to “cycle test” the damper by pushing and holding down the buttonuntil the damper has cycled and closure has been visually verified, either byinspecting the damper through the access door or by confirmation at a remote controlpanel when equipped with the optional MLS-300 position indicator.

The DTS is mounted right on the damper and enables a single maintainance personto test and cycle the damper, eliminating the need for help from another person in thecontrol room.

When a combination fire/smoke damper is ordered, the DTS is combined with the ERL(Electric Resettable Link), in a common enclosure. If ordered with an MLS-300position indicator switch package as well, the DTS will be combined with both in acommon enclosure.


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Notes:

Documents

Nailor COMBINATION FIRE/SMOKE … FIRE/SMOKE DAMPERS Contents ... smoke management for both static and dynamic HVAC systems. Nailor’s 1220 Series utilizes an …