SmartCom3Heat Exchanger models

VRA Axial Fan

Cabinet Heaters

VN/VD Vertical Heaters

HN/HD Horizontal Heaters

Forced Draught Gas and Oil Fired Cabinet Heaters

RN/RD Downflow Heaters

IntroductionThe Benson range of cabinet heaterscombines innovative design with aproven four pass heat exchangertechnology to provide a high efficiencycost effective and durable range.

The units may be specified for eitherfree blowing applications or for use withductwork.

Units are manufactured in accordancewith ISO 9001 accreditation, all heaterefficiencies are compliant with Part L2Bof the 2010 Building Regulations.

Options• High/low or fully modulating burners

• Combustion air adaptors

• Stainless steel tubular heat exchanger

• Air inlet spigots

• Air inlet filters

• Manual or motorised inlet dampers

• Up-rated fan motor for increased static pressure

Applications

• Factories

• Warehouses

• Workshops

• Showrooms

• Greenhouses

Model RangeCabinet heaters are available as either gas or oil fired models.

• Gas fired cabinet heaters are suitable for use with Natural Gas (G20), most units can also be specified for Propane (G31)

• Oil fired cabinet heaters are suitable for use with Class D gas oil (35 sec), most units can also be specified for Kerosene (28 sec oil)

Vertical freestanding models are available from 29kW to 380kW

Horizontal and Down flow models from 58kW to 380kW

Cabinet Heaters

ECA

SpecificationCabinetsCabinets are constructed from electro-zinc coated steel with an inner heat shieldskin and an epoxy powder coat finish outer skin to form a rigid and durable casework.

Air DistributionCentrifugal fan(s) circulate large airvolumes evenly across the full heatexchanger surface for enhanced life expectancy. Fans on models 30 to 85 aredirect drive with a single phase motor whilst larger models are fitted with a three phase motor and v-belt drive.

Free blowing heaters are fitted with longthrow discharge nozzles complete with horizontal louvres and can be rotated through 360o. Models 75-375 are supplied with a raised rear nozzle (oneper three nozzle heater and two per four nozzle heater).

Heaters for use with ductwork aresupplied with a duct outlet spigot.

Heat Exchanger and BurnerFour pass combustion chamber/heatexchanger assembly provides improvedthermal efficiency with extended life expectancy. A stainless steel chamberis combined with a high efficiency tubular heat exchanger to achieve thermal efficiency in excess of 91%.

The complete assembly is mounted toallow for thermal expansion therebyavoiding undue thermal stress andpremature heat exchanger failure.

Gas fired units are fitted with a fullyautomatic forced draught burner completewith full safety controls to EN676 and theheaters are CE certified. A high/lowburner is fitted as standard on model 375.

Oil fired units are supplied complete witha fully automatic burner complete withsafety controls and factory fitted fire valve and oil filter. An additional external fire valve may be required in accordance with BS 5410:Part2:1978.

ControlsA combined fan and limit switch is fittedon all heaters.

In the event of overheating the unit would automatically be shut down by the limitthermostat.

All heaters are supplied with an electronicprogrammer complete with optimisedcontrol, this is factory fitted and wiredon free-blowing vertical models. Forhorizontal, and all duct outlet models down flow heaters the controller is supplied loose for on site wiring by the installer.

Electric MotorsAll electric motors comply with EC motor directive 2005/32/EC

1 Throw is dependent on building height, room temperature and nozzle settings. 2 Gas/oil lines must be adequately sized and reduced at appliance as required. 3 Noise levels measured at 5 metres from appliance.

TECHNICAL DATA

Model Ref 30 35 40 60 75 85 120 135 180 205 235 275 350 375

Gas FiredNominal heat outputTemperature rise Gas Consumption Nat gas G20Gas Consumption propane G31 Minimum inlet pressure Nat gas G20Minimum inlet pressure propane G31Gas Connection2

kWK

m3/hm3/hmbarmbar

Rc

29393.71.317.537.0½”

36424.41.617.537.0½”

40454.71.817.537.0½”

58466.92.617.537.0½”

73438.53.217.537.0½”

83489.73.717.537.0½”

11744

13.65.217.537.0¾”

13341

15.36.017.537.0¾”

17746

20.47.817.537.01”

20649

23.99.217.537.01¼”

23744

27.210.417.537.01¼”

27846

33.012.317.537.01¼”

35041

40.716.117.537.01 ½”

38045

45.818.117.537.02”

Oil FiredNominal heat outputTemperature rise Oil Consumption Oil Connection2

kWK

l/hRc

32433.4⅜”

38434.1⅜”

43494.7⅜”

60476.5⅜”

76448.1⅜”

82489.1⅜”

12346

13.3⅜”

13842

15.0⅜”

18448

19.5⅜”

20850

22.5⅜”

24847

27.0⅜”

26544

34.1⅜”

35041

40.4⅜”

38045

45.6⅜”

Air Handling DataAirflowThrow1 (Npzzle outlet ) Static pressure (Ducted) Std motor Increased motorMain fan motor FLC 230/1/50FLC 415/3/50Up-rated fan motorFLC 415/3/50

m3/sm

PaPakW

amp ampkW

amp

0.611475n/a0.553.2n/an/an/a

0.7114100n/a0.554.8n/an/an/a

0.7114100n/a0.554.8n/an/an/a

1.0317125n/a0.996.02.2n/an/a

1.3917100n/a0.997.22.2n/an/a

1.3917100n/a0.997.22.2n/an/a

2.15201371751.5012.03.62.25.2

2.65201502002.2014.05.23.06.5

3.11201752253.0n/a6.54.08.4

3.4221882253.00n/a6.54.08.4

4.32221251884.00n/a8.45.511.0

4.86251752255.50n/a11.07.514.0

6.8831250n/a7.50n/a17.011.024.0

6.8831250n/a7.50n/a17.011.024.0

General DataNominal flue diameter Nominal combustion air diameter Noise level3 Net weight

mmø mmødB(A)

kg

12512567196

12512569196

12512569196

15012572241

15012572243

17512572243

17515074330

17515076332

20015078525

20015078540

22515079630

22515081646

25015081

1090

25015081

1090

Cabinet Heaters

Vertical Heaters VN/VD

DIMENSIONS

Model Ref 30 35 40 60 75 85 120 135 180 205 235 275 350 375

A 1650 1650 1650 1900 1900 1900 2025 2025 2125 2125 2110 2110 2667 2667

B 660 660 660 660 660 660 740 740 916 916 1100 1100 1244 1244

C 662 662 662 925 925 925 1085 1085 1315 1315 1550 1550 1550 1550

D 95 95 95 170 170 170 170 170 195 195 195 195 203 203

E mmø 125 125 125 150 150 175 175 175 200 200 225 225 250 250

F 250 250 250 320 320 320 320 320 380 380 380 380 355 355

G OilGas

229349

229349

229349

267362

267362

267362

298432

298432

298432

476580

476580

476580

476580

476580

H 280 280 280 280 280 280 305 305 355 355 406 406 474 474

J1 StandardExtended

240n/a

330n/a

300n/a

300n/a

330660

330660

360720

360720

410815

410815

460915

460915

6131115

6131115

K 1500 1500 1500 1778 1778 1778 1878 1878 1980 1980 1965 1965 2610 2610

L 835 835 835 984 984 984 968 968 1068 1068 1054 1054 1372 1372

1. Heaters with 3 or 4 nozzles are supplied with extended head on the rear nozzle(s). For applications with restricted headroom, units may be specified with all nozzles at standard height.

Front View Side View

C

F

L

D

J

Eø

G

A

B

K

J

H

INSTALLATION DIMENSIONS

Model Ref 30 35 40 60 75 85 120 135 180 205 235 275 350 375

Head plan (VN) 1 1 1 1 2 2 2 3 3 3 3 3 3 3

Nozzle detail(VN)

no.Spigot ø

2240

2240

2240

2240

3240

3240

3280

4280

4320

4320

4370

4370

4370

4370

Outlet Spigot(VD)

AB

570570

570570

570570

634770

634770

634770

714950

714950

8901120

8901120

10001450

10001450

10861365

10861365

Side Inlet Spigot(VN/VD)

CD

522348

522348

522348

702427

702427

702427

904542

904542

1078692

1078692

1145654

1145654

1150796

1150796

Rear Inlet Spigot(VN/VD)

EF

620445

620445

620445

520550

520550

520550

608550

608550

790560

790560

935654

935654

n/an/a

n/an/a

Inlet Filter Assembly(VN/VD)

GHJ

420660300

420660300

420660300

600800300

600800300

600800300

680990300

680990300

7651165300

7651165300

7201245450

7201245450

8601530450

8601530450

Installation ClearancesFrontSideRear

500300700

500300700

500300700

5003001000

5003001000

5003001000

6003001200

6003001200

6003001500

9003001500

9004002000

9004002000

9005002000

9005002000

Filter cassettes can be withdrawn from either side, ensure adequate clearance for withdrawal i.e. full width of filter box.

Air Discharge and Inlet Details VN/VD

J

H

Side inlet spigotleft (as shown) or right -

please specify at time of order

Rear inlet spigot Side inlet filterLeft (as shown) or right - please specify at time of order.

Additional side inlet spigot is required to connect filter box to inlet ductwork

Nozzle outlet 30-60 Nozzle outlet 75-120 Nozzle outlet 135-375 Duct outlet spigot

Return Air spigots and Filters VN/VD

G

F

E5050C

D

A

B

Cabinet Heaters

C F

L D

JP

B

R

S

92

Eø

Plan View

End View

Side View

Horizontal Heaters HN/HD

HH

K

G

45 45

A

M N

G

Q

Note: Units may be specified for airflowright to left which is the standard configurationas shown. Alternatively units can be specified for airflow left to right.

DIMENSIONS

Model Ref 60 75 85 120 135 180 205 235 275 350 375

A 1865 1865 1865 1993 1993 2093 2093 2076 2076 2667 2667

B 660 660 660 740 740 916 916 1100 1100 1244 1244

C 925 925 925 1085 1085 1315 1315 1550 1550 1550 1550

D 170 170 170 170 170 200 200 225 225 203 203

E mmø 150 150 175 175 175 200 200 225 225 250 250

F 320 320 320 320 320 380 380 380 380 355 355

G 560 560 560 640 640 816 816 1000 1000 1086 1086

H 790 790 790 952 952 1182 1182 1450 1450 1365 1365

J OilGas

267362

267362

267362

298432

298432

298432

476580

476580

476580

476580

476580

K 160 160 160 225 225 320 320 320 320 320 320

L mmø 209 209 209 290 290 425 425 425 425 480 480

M 676 676 676 790 790 790 790 769 769 1054 1054

N 984 984 984 968 968 1068 1068 1054 1054 1372 1372

P 568 568 568 607 607 740 740 840 840 1396 1396

Q 1806 1806 1806 1934 1934 2034 2034 2020 2020 2612 2612

R 1081 1081 1081 1244 1244 1474 1474 1750 1750 1750 1750

S 1157 1157 1157 1320 1320 1550 1550 1826 1826 1826 1826

DIMENSIONS

Model Ref 60 75 85 120 135 180 205 235 275 350 375

A 1865 1865 1865 1993 1993 2093 2093 2076 2076 2667 2667

B 660 660 660 740 740 916 916 1100 1100 1244 1244

C 925 925 925 1085 1085 1315 1315 1550 1550 1550 1550

D 170 170 170 170 170 200 200 225 225 203 203

E mmø 150 150 175 175 175 200 200 225 225 250 250

F 320 320 320 320 320 380 380 380 380 355 355

G 560 560 560 640 640 816 816 1000 1000 1086 1086

H 790 790 790 952 952 1182 1182 1450 1450 1365 1365

J OilGas

267362

267362

267362

298432

298432

298432

476580

476580

476580

476580

476580

K 160 160 160 225 225 320 320 320 320 320 320

L 209 209 209 290 290 425 425 425 425 480 480

M 676 676 676 790 790 790 790 769 769 1054 1054

N 984 984 984 968 968 1068 1068 1054 1054 1372 1372

P 476 476 476 515 515 648 648 748 748 1304 1304

Downflow Heaters RN/RD

Front View Side View

B

G45

A

G45 P

K

CH

H

L

F

D

N

M

Eø

J

Plan View

Benson Heating, Ludlow RoadKnighton, Powys, LD7 1LPUnited Kingdom

Telephone 01547 528534Facsimile 01547 520399E-mail sales@bensonheating.co.ukWebsite www.bensonheating.co.uk

Benson Heating Ltd is a registered trademark of AmbiRad Limited. Because of continuous productinnovation, Benson Heating reserves the right to change product specification without due notice.

GB

/BE

N/0

09/0

611

1 Top clearance applies to units with side air inlet. For units with top air inlet allow 1000mm

INSTALLATION DIMENSIONS

Model Ref 60 75 85 120 135 180 205 235 275 350 375

Nozzle ø (HN/RN) 203 203 203 284 284 419 419 419 419 470 470

Duct Spigot(All)

AB

790560

790560

790560

952640

952940

1182816

1182816

14501000

14501000

13651086

13651086

Top & Side Inlet(HN/HD & RN/RD)

CD

702427

702427

702427

904542

904542

1078692

1078692

1145654

1145654

1150796

1150796

Rear Inlet(HN/HD)

EF

520520

520520

520520

608550

608550

790560

790560

935654

935654

n/an/a

n/an/a

Installation ClearancesFrontTop (RN/RD)Top1 (HN/HD)Rear

5001501501000

5001501501000

5001501501000

6001501501200

6001501501200

6001501501500

9001501501500

9001504002000

9001504002000

9001505002000

9001505002000

B

A

B

A

C

D

F

E

F

EC

D

Air Discharge and Inlet Details

Discharge outlets (HN/RN)

(All HN/RN models are supplied with 4 louvred outlets)

Alternative Return Air Spigots

Air Filters

Top or bottom inlet spigot HN/HD

Rear inlet spigot HN/HD

Side inlet spigot RN/RD

Rear inlet spigot RN/RD

Top or bottom inlet filterHN/HD

Side inlet filter RN/RD

Outlet spigot (HD/RD)

(Flue location shown for standard R-L horizontal airflow)

End inlet spigot (HN/RN HD/RD)

(Burner location shown for standard R-L horizontal airflow)