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Thermostats
A-21
356LimitemRigidBulbThermostat.
DescriptionThe356LimitemRigidBulbThermostatisapneumaticallyoperated,duct-mountedthermostat,whichisavailableineither direct or reverse acting in a variety of ranges.
Features• Durablecoppermotortubeandsteelrodtemperature
sensing element• Two-valvedesignreducesairwaste• Ductmountinghardwareincluded• Allmetalconstruction• 18"(46cm)sensingtube
ApplicationsThe356LimitemRigidBulbThermostatprovidesprimarycontrol for unit ventilators, fan coils and other air handling units.Canalsobeusedaslowlimitcontrolforairflowtoacontrolled space.
Application DrawingsDottedlinesarealternativecontrolschemes.
2-pipe.
1-pipe.
356Limitem Rigid Bulb Thermostats
Ther
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A-22
Control Action ...............................................................DirectorReverseMaximum Supply Air Pressure ..................................... 30 psi (207 kPa)Sensitivity Range (adjustable) .............0.25to2psi/°F(3to25kPa/°C)Factory Sensitivity Setting .................................1.25psi/°F(15kPa/°C)Temperature Response .................................................... 0.50°F(0.9°C)Dial Graduations ................................................. 5°F(2.7°C)/2°C(3.6°F)Maximum Ambient Temperature Case ................................................................................. 200°F(93°C) Bulb(DirectActing).......................................................... 225°F(107°C) Bulb(ReverseActing)...................................................... 250°F(121°C)
Nominal Air Supply Pressure ................... 18to25psi(124to172kPa)Maximum External Pressure (on bulb) .................... 250 psi (1722 kPa)Mounting ....................................................................Flangeor3/8"NPTAir Connections .........................................................................1/8"NPTDimensions BulbLength .......................................................................18"(457mm) FlangeOD ........................................................................2.56"(65mm) Case .......................................................................1.5"Diameterx3"L (33mmDiameterx76mmL)Shipping Weight ..............................................................2.0lb.(0.91kg)
356 Limitem Remote Bulb Thermostat Specifications
356 Limitem Remote Bulb Thermostat Product OrderingControl Action Temperature Operating Range Part No.DirectActing 0to100°F(-18to+38°C) 356-0012DirectActing 30to180°F(-1.11to+82.2°C) 356-0750Reverse Acting 0to100°F(-18to+38°C) 356-0013Reverse Acting 30to180°F(-1.11to+82.2°C) 356-1005Reverse Acting 100to250°F(37.8to121°C) 356-1006
Accessories & Service Kits A-75
TECH TIPWhen using the Limitem as a one-pipe device, a 40 scim (11 ml/s) restrictor will limit your output to 80% of supply. A 20 scim (5 ml/s) restrictor will limit your output to 60% of supply.
Example: With a 20 scim (5 ml/s) restrictor and 25 psi (11.3 kPa) supply, your maximum output is 15 psi (6.8 kPa).
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Thermostats
A-23
357DLimitemRemote Thermostat with an average bulb.
DescriptionThe357DLimitemRemoteBulbThermostatisapneumatically-operatedthermostatthatisgradual,directacting with a remote or averaging bulb.
Features• Directactingonly• Remoteoraveragingbulbsforflexibilityininstallation• Liquid-filledsensingelementforrapidresponseto
temperature changes• Two-valvedesignreducesairwaste• Adjustablesensitivity
ApplicationsThe357DLimitemRemoteBulbThermostatprovidesprimary monitoring and control for air handling units or a low limit control.
Application DrawingsDottedlinesarealternativecontrolschemes.
2-pipe.
1-pipe.
357 DLimitem Remote Bulb Thermostats
Ther
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A-24
Control Action ..................................................................................DirectMaximum Supply Air Pressure ...................................... 30 psi (207 kPa)Sensitivity Range (adjustable) .......... 0.33to3.5psi/°F(4to43kPa/°C)Factory Sensitivity Setting ................................. 1.25psi/°F(15kPa/°C)Bulb ..........................................................................................Liquid-filledTemperature Response ....................................................... 0.5°F(0.3°C)Dial Graduations .................................................5°F(2.7°C),2°C(3.6°F)
Maximum Ambient Temperature (case) ............................. 180°F(82°C)Nominal Air Supply Pressure ....................18to25psi(124to172kPa)Mounting .........................................................................BracketsuppliedAir Connection ............................................................................1/8"NPTDimensions (Case) ..............................................1.75"Diameterx3.5"H (44.5mmDiameterx88.9mmH)Shipping Weight ................................................................ 2.0lb.(0.9kg)
357 D Limitem Remote Bulb Thermostat Specifications
357 D Limitem Remote Bulb Thermostat Product OrderingTemperature
Operating Range Sensing Element Capillary BulbMaximum
Ambient Temp. Part No.20to100°F(-6.7to+37.8°C) RemoteBulb 8'(2.4m) 3/8"x4'(0.95mmx10.2cm) 201°F(94°C) 357-00035to145°F(1.7to62.8°C) AveragingBulb 40'(12.2m) 3/32"x15'(0.24mmx457cm) 210°F(99°C) 357-0004
120to230°F(48.9to110°C) RemoteBulb 40'(12.2m) 3/8"x4"(0.95mmx10.2cm) 261°F(127°C) 357-000535to145°F(1.7to62.8°C) AveragingBulb 6"(15cm) 3/32"x8'(0.24mmx244cm) 211°F(99.4°C) 357-0001
Accessories & Service Kits A-75
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Thermostats
A-25
188UnitMountedThermostat.
ApplicationsThe188UnitMountedThermostatsaredesignedprimarilyfor use in fan coil induction units and unit ventilators to control the temperature within an occupied space. The thermostat’s temperature range is limited to applications at ambient temperatures.
DescriptionThe188UnitMountedThermostatisagradualactingthermostatwitharemotebulboperatingontheforce-balance principle, using pneumatic feedback to obtain linearity and maintain selected room temperature by positioning pneumatic devices to control heating or cooling.
Features• Liquid-filledthermalsystemtemperature
sensing element• Durabledie-castmetalcasewithruggedsetpointknob• Adjustablesensitivity• Universalmountingbracketforeasyinstallation• Integraladjustablelimitstops• Availableas: –DirectActingonly(Heating) –ReverseActingonly(Cooling) –HeatorCooldependingonsupplyairpressure
Typical Connections
188Unit Mounted Thermostats
Ther
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A-26
Control Action ...............................Heating/Cooling,DirectandReverse; Directonly;ReverseonlyOperating Range ........................................... 60to85°F(15.5to29.4°C)Operating Pressure ...............................................30 psi (207 kPa) max.Adjustment Sensitivity ........................1to5.25psi/°F(12to65kPa/°C)Factory Sensitivity Setting .................................2.25psi/°F(28kPa/°C)Temperature Response ...................................................... 0.2°F(0.1°C)Maximum Ambient Temperature Case .............................................................................. 135°F(57.2°C) Bulb ................................................................................231°F(111°C)Scale Graduations ............................................................... 1°F(0.55°C)Nominal Air Supply Pressure DirectorReverseActing............................................... 25 psi (172 kPa) Heating/Cooling .................................25psi(172kPa)/18psi(124kPa)
Average Air Usage 20 scim Restrictor.......................................................25scim(6.8ml/s) 40scimRestrictor.....................................................45scim(12.2ml/s)Air Connections ......... 1/4"(6mm)BrassbarbedforpolyethylenetubingBulb Size ............................................................ 3/8"Diameterx3-1/2"L (9.5mmDiameterx89mmL)Capillary Length ..................................................48"(121.9cm)approx.Finish ................................................Corrosion-resistantZincChromateDimensions (case) Heating/Cooling,ReverseActing.................... 3.1"Wx2.4"Hx2.13"D (100mmWx61mmHx54mmD) DirectActing ................................................... 3.1"Wx2.4"Hx1.38"D (100mmWx61mmHx35mmD)Shipping Weight ..............................................................3.0lb.(1.36kg)
188 Unit Mounted Thermostat Specifications
188 Unit Mounted Thermostat Product OrderingControl Action Changeover Pressure Average Air Usage Part No.
Single Setpoint DirectActing/25psi(172kPa) — 40scim(11ml/s) 188-0031
Single Setpoint ReverseActing(Cooling)18psi — 20 scim (5 ml/s) 188-0024
Heat/Cool DirectActing/ReverseActing(Cooling) 18psi(124kPa) — 40scim(11ml/s) 188-0030
Heat/CoolRetrolineDirectActing/ReverseActing 18psi(124kPa)/13psi(90kPa).Retroline replacement for Honeywell LP916BXXXX.
15 psi (103 kPa) 40scim(11ml/s) 188-0033
Heat/CoolRetrolineDirectActing/ReverseActing 20psi(138kPa)/15psi(103kPa).Retroline replacement for Johnson Controls T-3300-2.
17 psi (117 kPa) 40scim(11ml/s) 188-0034
Accessories & Service Kits A-75
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Thermostats
A-27
134PneumaticLowTemperatureDetectionThermostat.
DescriptionThe134HighandLowTemperatureDetectionPneumaticThermostatsautomatically“lockout”atsetpointandrequiremanual reset.
Features• Snap-actingpneumaticswitch• Sight-setcalibratedsetpointscale• Noleakageofairpriortoresetofswitch• Easily adjustable settings• Normallyclosedairvalve;bleedstolessthan2psi
(14kPa)whensuppliedthrougharestrictor• Barbfittingforpush-onconnectionof1/4"(6mm)
ODpolyethylenetubing• Holdsdead-endedlinetoapproximately22psi
(152 kPa) air pressure
ApplicationsThe134PneumaticHighandLowTemperatureDetectionThermostats are used on pneumatic heating and cooling systems in areas protected from the weather.
On a typical high limit application, the thermostat shuts down air conditioning or ventilating fans when the duct temperature becomes excessively high. A normally closed switch opens at setpoint.
On a typical low temperature application, the thermostat stops the fan or closes a damper when the temperature drops to the setpoint at any one foot (30.5 cm) or more of the sensing element.
Application Drawings
134Pneumatic High and Low Temperature Detection Thermostats
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A-28
Part No. 134-1700Ambient Temperature Range .............................Greater than setpoint to 140°F(60°C)Pneumatic Switch ...........................NC,0.020"(0.6mm)diameterbleedControl Point Low Temperature Thermostat ..............................Lowest temperature at any one foot section of the sensing bulbCase Finish ..............................................................GrayBakedEnamelShipping Weight ............................................................2.45lb.(1.11kg)
Part No. 134-1710Ambient Temperature Range .............................................-40to+140°F (-40to+60°C)Pneumatic Switch .............................NC,0.02"(0.6mm)diameterbleedControl Point Low Temperature Thermostat ..............................Lowest temperature at any one foot section of the sensing bulbCase Finish ..............................................................GrayBakedEnamelShipping Weight ............................................................2.38lb.(1.08kg)
Dimensionsshownininches(mm).
Dimensions
134 Pneumatic Thermostat Specifications
134 Pneumatic Thermostat Product Ordering
Temp.Temperature
Range DifferentialMax. Bulb
Temp.Bulb & Capillary
Length Switch Reclose Part No.
Low
15to55°F(-9to+12.8°C)with stop at 35°F(1.67°C)
5°F(2.8°C)Non-Adjustable
400°F(204°C) 20'(6m)
Temperature must increase by 5°F(2.8°C)beforepneumaticswitch can be reclosed.
134-1700
High 100to170°F (38to77°C)
10°F(5.6°C) Non-Adjustable
250°F(121°C)
2.7"(69mm)Dia.x10"(25.4cm)Lbulbwith6'(183mm)capillary
Temperaturemustdrop10°F(5.6°C)beforepneumaticswitch can be reclosed.
134-1710
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Thermostats
A-29
141ElectricLineVoltageRemoteBulbThermostat.
DescriptionThe141ElectricLineVoltageRemoteBulbThermostat isatwo-positionelectriclinevoltagethermostatwithremote bulb.
Features• Temperaturesensitive,liquid-filledsensingelement• Single-pole,double-throwsnap-actingswitches• Enclosedswitchessuitableforloworlinevoltage
power switching• Graybakedenamelcase
ApplicationsThe141ElectricLineVoltageRemoteBulbThermostatis used for temperature control in heating and cooling application,typicallytodirectlyoperatetwo-positiondamper motor actuators, motor actuated valves, relays and similar equipment. Typical applications includes summer-winterchangeoverandthedirectcontrolof liquidorairtemperatureswheretwoposition(ON-OFF)control is acceptable.
Typical Connections
YELLOW
BLUE
RED (COM)
CLOSE ON RISEOF TEMPERATURE
OPEN ON RISEOF TEMPERATURE
141Electric Line Voltage Remote Bulb Thermostats
Ther
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A-30
Part no. in black box ships same day when requested through rapid responsetM shipping. see inside back cover for details.
Inductive Amps FullLoadAmps 120Vac ..........................................................................................7.4 240Vac ..........................................................................................3.7 Locked Rotor Amps 120Vac ........................................................................................44.5 240Vac ........................................................................................22.2
141 Electric Line Voltage Remote Bulb Thermostat Specifications
141 Electric Line Voltage Remote Bulb Thermostat Product OrderingTemperature Scale Range Max. Bulb Temp. Bulb Size Switch Differential Part No.
0to120°F(-7to+49°C) 130°F(54°C).038"Diameterx4.03"L
(9.9mmDiameterx102mmL)Capillary6'(183cm)
Adjustable6to30°F (3to16°C) 141-0520
100to240°F(38to110°C) 250°F(121°C).029"Diameterx2.33"L
(7.4mmDiameterx59.2mmL)Capillary6'(183cm)
Adjustable7to45°F (14to25°C) 141-0521
Accessories & Service Kits A-75
Resistive Amps 120Vac ...............................................................................................25 240Vac ...............................................................................................20Dimensions .................................................... 2.5"Wx5.38"Hx2.31"D (64mmx(136mmx59mm)Shipping Weight ..............................................................1.8lb.(0.82kg)
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Thermostats
A-31
134ElectricLineVoltageRoomThermostat—Heating/Cooling.
ApplicationsThe134ElectricLineVoltageRoomThermostat controlsheatingandcoolingapplicationsoryear-round air conditioning units in commercial, industrial, or residential installations.
DescriptionThe134ElectricLineVoltageRoomThermostatisa line voltage On/Off room thermostat for heating and cooling applications.
ModelsareavailablewithSPSTorSPDTcontactactionandforstandard,nominal1/4hp/10ampsnoninductive,or heavy duty, nominal 1 hp / 22 amps noninductive applications.
Features• Singlesetpointdial• Exposedbimetalthermometer• Temperaturerangefrom50to90°F(10to30°C)• Highandlowlimitstops• Standardorheavydutymodels• DualFahrenheit/Celsiusscaleplate
Typical Connections
134Electric Line Voltage Room ThermostatsHeating/Cooling
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A-32
Part no. in black box ships same day when requested through rapid responsetM shipping. see inside back cover for details.
Part No. 134-1083Motor Rating 120Vac ...........................................................................................6.0A 240Vac ...........................................................................................3.7 ASwitch Action ........................................SPSTwith“Auto-Off-Fan”switchDimensions .................................................. 2.78"Wx5.19"Hx1.88"D (71mmWx132mmHx48mmD)Shipping Weight ..............................................................1.3lbs.(0.6kg)
Part No. 134-1086Motor Rating 120Vac ...........................................................................................6.0A 240Vac ...........................................................................................3.0 ASwitch Action .................................................................................. SPSTDimensions ....................................................... 3"Wx4.75"Hx1.44"D (75mmWx120mmHx36mmD)Shipping Weight 1.3lb.(0.6kg)
Part No. 134-1084Motor Rating 120Vac ...........................................................................................6.0A 240Vac ...........................................................................................3.0 AResistive Rating 120Vac ..................................................................................10.0 amps 240Vac ..................................................................................10.0 ampsSwitch Action ..................................................................................SPDTDimensions ....................................................... 3"Wx4.75"Hx1.44"D (75mmWx120mmHx36mmD)Shipping Weight ................................................................1.0lb.(0.6kg)
Part No. 134-1085Motor Rating 120Vac ...........................................................16.0Heating/8.0Cooling 240Vac .............................................................8.0Heating/8.0CoolingResistive Rating 120Vac ..............................................................................22.0Heating 240Vac ..............................................................................22.0HeatingSwitch Action ..................................................................................SPDTDimensions ....................................................... 3"Wx4.75"Hx1.44"D (75mmWx120mmHx36mmD)Shipping Weight ................................................................1.0lb.(0.6kg)
134 Electric Line Voltage Room Thermostat Specifications
134 Electric Line Voltage Room Thermostat Product OrderingSwitch Action Temp. Set Point Range Temp. Set Point Adjustment Temperature Difference Part No.
SPST 40to90°F(5to30°C) Concealed 1.8°F(1°C) 134-1083
SPST 40to90°F(5to30°C) Concealed 1.8°F(1°C) 134-1086
SPDT 40to90°F(5to30°C) ExposedKnoborConcealed1 1.8°F(1°C)Heating 2.31°F(1.3°C)Cooling 134-1084
SPDT 40to90°F(5to30°C) ExposedKnoborConcealed1 3°F(1.7°C)Heating 3.5°F(2°C)Cooling 134-1085
Ordering Note1. Each thermostat is shipped with a blank faceplate for use when concealed adjustment is desired.
Accessories & Service Kits A-75
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Thermostats
A-33
RAA10CFanCoilThermostatwith concealed setpoint knob.
RAA20U Room Thermostat with exposed setpoint knob.
ApplicationsThe RAA… Electric Room Thermostats are typically used in public buildings, storage rooms, entrance hallways and maintenanceroomswheretwo-position(On/Off)control is required.
Descriptions of models are as follows:RAA10Cmodelisaheatingorcoolingonlythermostatthat has a concealed setpoint knob for use in areas where setpoint adjustment is limited to authorized personnel. Typical applications are frost and overheat protection and temporary heat for buildings under construction.
RAA20U model is a heating or cooling only thermostat that has an external setpoint knob for occupant adjustment.
Note:ARG 70 wall plate is required in order to be UL compliant for switching line voltage.
The RAA… Room Thermostats are designed for either simpleheatingorcoolingorfor2-pipeheatingandcoolingsystems where fan control is not required.
DescriptionDesignedforsimpleheatingorcoolingorheating/coolingapplications, RAA… Electric Room Thermostats are an attractiveandeconomicalsolutionthatutilizetwo-wire, gas membrane technology.
RAA… Electric Room Thermostats are available in singlescaleFahrenheitorCelsiusmodels,excepttheRAA10C,withmodelsfordrywallorelectricalwallboxmounting. Models designed for wall box mounting include wall box plate adapter and screws.
Features• Two-pointcontrolalgorithmforon/offcontrol• 24to120,277Vacline• Twomountingstyles:electricalwallboxordrywall• DualFahrenheit/Celsiusscale(RAA20U)
Options• Tamperproofcover(concealedsetpointknob)noted
withaC• Availablewithwallplate
RAA…Electric Room Thermostats
Ther
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A-34
Part no. in black box ships same day when requested through rapid responsetM shipping. see inside back cover for details.
Operating Voltage ......................................................24to120,277VacFrequency ..............................................................................50or60HzSetpoint Adjustment Range .............................. 50to85°F(10to29°C)Switching Differential ......................................................... <1.8°F(1°C)Switch Rating ............................................. 6ARES,3.5AFLA,12ALRATime Constant ...............................................................................14min.Switch Action Output ..................................SPDTTwo-position(On/Off)Operation–Conditions Operating Temperature .................................... 32to122°F(0to50°C) RelativeHumidity ...................................................................<95%RH
Transportation/Storage Conditions Temperature ...............................................-4to+122°F(-20to+50°C) RelativeHumidity ...................................................................<95%RHHousing Material ........................................................................................Plastic Color ............................................................................................White Bellows ..................................................... Environmentally-friendlygasWiring ........................................................... Screw terminals for wires of 2x16AWGor1x14AWG,20AWGmax.Agency Listings ........................................ConformstoCErequirements ULlistedto873 cULlistedtoCanadianstandardC22.2No.24-93Shipping Weight ............................................................0.31lb.(0.14kg)
RAA Electric Room Thermostat Specifications
RAA Electric Room Thermostat Product Ordering
DescriptionElectric Wall Box1
Part No.Dry Wall Part No.
Thermostat for heating or cooling only RAA10CW RAA10CThermostat for heating or cooling only with exposed setpoint knob RAA20UW RAA20U
Ordering Note1. Includeswallplate,ARG70, to be UL compliant for switching line voltage.
Accessories & Service Kits A-75
RAA10C... Thermostat
Wall Plate (ARG70) for Mounting (RAA10CW and RAA20UW)
Dimensionsshownininches(mm).
3.80(96.4)
3.92
(99.
6)
1.42(36)T
H05
03R
2RAA20U... Thermostat
3.80(96.4)
3.92
(99.
6)
1.68(42.8)T
H04
97R
2
RAA Electric Room Thermostat DimensionsTherm
ostats
A-35
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A-36
RAA Electric Room Thermostat Engineering Drawings
Wiring Diagrams
HeatingMode CoolingMode
RAA10C…/RAA20U…
KeyD1 HeatingdeviceD2 CoolingdeviceL Operating voltageN NeutralN1 Room thermostat
S On/Off switchT ThermostatW HeatingcontroloutputY Coolingcontroloutput
Operating Diagrams
HeatingMode CoolingMode
KeyT Room temperatureSD Switching differentialSP Room temperature setpoint
W HeatingoutputsignalY Coolingoutputsignal
RAA10C…/RAA20U…
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