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GHND-SVX01A-EN • High Efficiency Propeller Fan Gas Unit Heater

Part Identification

Note 1.

For item No. 6, use counter-clockwise rotation.

Note 2.

DO NOT OVERTIGHTEN CELCON NUT! HAND TIGHTEN ONLY! DO NOT USE TOOLS!

Approximate 1/3 turn maximum or 8 inch pounds is sufficient from the point where the tube does not slip in or out.

Note 3.

Flue Sizes:

30/75 units: 4" dia. flue outlet Reducer required – To be supplied by installer.

100/175 units: 4" dia. flue outlet Reducer required – To be supplied by installer.

200/250 units: 5" dia. flue outlet (no adapter required).

300/400 units: 6" dia. flue outlet Increaser required – To be supplied by manufacturer.

Figure 24. Power vent assembly

Summary of Contents for GHND Series

Page 1: ...Installation Operation Maintenance July 2007 GHND SVX01A EN GHND GHPD High Efficiency Propeller Fan Gas Unit Heater...

Page 2: ...this equipment Note All phases of this installation must comply with the NATIONAL STATE LOCAL CODES In addition to local codes the installation must conform with National Electric Code ANSI NFPA NO 7...

Page 3: ...Clearances 14 Gas Supply Piping 16 Pipe Sizing 16 Pipe Installation 18 Electrical Connections 20 Thermostat Wiring and Location 20 Venting for Power Vented Unit Heaters 22 Operation 28 Maintenance 34...

Page 4: ...t furnace E Centrifugal fan unit heater with enclosure H High efficiency propeller fan unit heater P Propeller fan unit heater L High efficiency indoor duct furnace DIGIT 3 Fuel N Natural gas P LP gas...

Page 5: ...r unit DIGIT 13 Rooftop heating unit motor selection 0 None indoor unit and rooftop duct furnace DIGIT 14 Rooftop fan selection 0 None indoor unit and rooftop duct furnace DIGIT 15 Miscellaneous optio...

Page 6: ...e heated THESE HEATERS ARE NOT TO BE CONNECTED TO DUCTWORK The designs are certified by CSA International as providing a minimum of 80 thermal efficiency and approved for use in California Do not alte...

Page 7: ...36 or www ansi org The NFPA Standards are available from the National Fire Protection Association Batterymarch Park Quincy MA 02269 These unit heaters are designed for use in airplane hangars when ins...

Page 8: ...ounded conductor between the service panel and the heater To ensure a proper ground the grounding means must be tested by a qualified electrician Do not insert fingers or foreign objects into the heat...

Page 9: ...1 8 39 1 8 39 1 8 D Depth to Rear of Housing 30 3 8 30 3 8 30 3 8 30 3 8 37 1 2 37 1 2 37 1 2 37 1 2 37 1 2 37 1 2 37 1 2 37 1 2 37 1 2 37 1 2 E Hanging Distance Width 11 11 16 1 2 16 1 2 14 1 2 17 1...

Page 10: ...10 High Efficiency Propeller Fan Gas Unit Heater GHND SVX01A EN General Information Figure 3 Dimensions standard units...

Page 11: ...locations where air for combustion would contain chlorinated halogenated or acidic vapors If located in such an environment premature failure of the unit will occur Since the unit is equipped with an...

Page 12: ...gars when acceptable to the enforcing authorities PUBLIC GARAGES In repair garages unit heaters must be at least 8 feet 2 4m above the floor Refer to the latest edition of NFPA No 88B Repair Garages I...

Page 13: ...n in which the facilities for ventilation permit satisfactory combustion of gas proper venting and the maintenance of ambient temperature at safe limits under normal conditions of use The Unit Heater...

Page 14: ...s 152mm Also see AIR FOR COMBUSTION and VENTING sections Note Increasing the clearance distances may be necessary if there is a possibility of distortion or discoloration of adjacent materials Note IM...

Page 15: ...Efficiency Propeller Fan Gas Unit Heater 15 Installation Note 3 All hanging hardware and wood is not included with the unit to be field supplied Figure 6 Heater Mounting Figure 7 Heater mounting 30 4...

Page 16: ...a 1 000 Btu cu ft 0 29 kW natural gas supply Using Table 1 a 1 inch pipe is needed Note See General Safety Information section for English SI metric unit conversion factors Note If more than one gas...

Page 17: ...Inch Water Column 124 4 Pa Based on a 0 60 Specific Gravity Gas Nominal Iron Internal Length of Pipe Feet Pipe Size Dia 10 20 30 40 50 60 70 80 90 100 125 150 175 200 1 2 0 622 175 120 97 82 73 66 61...

Page 18: ...ately support the piping to prevent strain on the gas manifold and controls 4 To prevent the mixing of moisture with gas run the take off piping from the top or side of the main 5 5 Standard gas duct...

Page 19: ...piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa Notes For single stage...

Page 20: ...ter be provided by a separate fused and permanently live electrical circuit A disconnect switch of suitable electrical rating for each unit heater should be located as close to the gas valve and contr...

Page 21: ...controls are factory wired to the junction box The fan control is a time delay relay approximately 45 seconds ON 65 seconds OFF The fan control is rated at 17 amps Note The start up fan delay must not...

Page 22: ...ting system to ensure adequate ventilation exists at all times Failure to heed these warnings could result in Carbon Monoxide Poisoning symptoms include grogginess lethargy inappropriate tiredness or...

Page 23: ...length is the total length of straight sections PLUS 15 ft 4 6m for each 90 degree elbow 8 ft 2 4m for each 45 degree elbow and 10 ft 3 0m for the vent cap Maintain 6 in 152mm between vent pipe and co...

Page 24: ...ow Corning RTV 732 silicone sealant or equivalent or 3M 425 aluminum foil tape or equivalent The vent system must be installed to prevent collection of condensate Vertical vent pipes should be equippe...

Page 25: ...using 4 Rotate the power venter housing to the horizontal position 5 Replace screws accordingly Note The motor pressure switch and junction box bracket MUST remain located as shipped from the factory...

Page 26: ...26 High Efficiency Propeller Fan Gas Unit Heater GHND SVX01A EN Venting for Power Vented Unit Heaters Figure 14 Horizontal arrangement single wall...

Page 27: ...peller Fan Gas Unit Heater 27 Venting for Power Vented Unit Heaters Figure 16 Horizontal arrangement single wall vent system to double wall termination Figure 17 Vertical arrangement single wall vent...

Page 28: ...and a spark ignited pilot burner When the pressure switch closes the pilot valves opens and a spark is generated to light the pilot burner When flame sensing circuit senses that the pilot flame is est...

Page 29: ......

Page 30: ...l 2 Burner Manifold 8B Main Gas Valve White Rodgers 3 Air Shutters 9 Ignitor 4 Burner Springs 10 Pilot Burner 5 Main Burner Orifice 11 High Limit this safety device is located on the rear header plate...

Page 31: ...obtained when the unit heater is operating at its full input rating with the manifold pressure of 3 5 inches W C 0 9 kPa Adjustment of the pressure regulator is not normally necessary since it is pres...

Page 32: ...Input in 1000 BTU Type of Gas Natural Propane Number of Burner Orifices Heating Value 1075 BTU Ft3 40 1 MJ m3 2500 BTU Ft3 93 1 MJ m3 Manifold Pressure 3 5 W C 0 87kPA 10 W C 2 49 kPA 30 FT 3 HR ORIF...

Page 33: ...dust particles and not to be confused with the yellow tipping which is a stable or permanent situation when there is insufficient primary air PILOT ADJUSTMENT 1 Remove the pilot adjustment cap 2 Adjus...

Page 34: ...clearances Improper clearances could result in a fire hazard Failure to maintain proper clearances could result in death or serious injury or property damage WARNING Hazardous Voltage and Gas Turn of...

Page 35: ...the Primary Air Shutter Adjustment section of this manual 9 Check all gas control valves and pipe connections for leaks 10 Check the operation of the automatic gas valve by lowering the setting of the...

Page 36: ...eck with local gas supplier for proper orifice size and replace Refer to Operation B Flame pops back POSSIBLE CAUSE S 1 Excessive primary air 2 Burner orifice too small CORRECTIVE ACTION Close air shu...

Page 37: ...bustion CORRECTIVE ACTION Open air shutters Refer to Operation Clean main burner ports Replace manifold assembly Clean flue collector Check for dust or lint at air mixer opening and around the air shu...

Page 38: ...ilot 3 Pressure regulator set too low 4 Pilot decreases in size when main burners come on 5 Pilot flame too small 6 Drafts around heater 7 Improper venting CORRECTIVE ACTION Close air shutter Refer to...

Page 39: ...s supplied to the transformer primary then check for 24 volts at secondary terminal before replacing Check and tighten all wiring connections per diagrams Replace if necessary Also see W X Y symptoms...

Page 40: ...cation 5 Draft on Pilot 6 Defective ignitor control if applicable 7 Unit cycling on high limit 8 Defective high limit switch CORRECTIVE ACTION Tighten all electrical connections Adjust thermostat heat...

Page 41: ......

Page 42: ...rams P Fan motor turns on and off while burner is operating POSSIBLE CAUSE S Fan switch heater element improperly wired Defective fan switch Motor overload protector cycling on and off Motor not prope...

Page 43: ...blade and heat exchanger and oil fan motor T Too much heat POSSIBLE CAUSE S 1 Thermostat malfunction 2 Heater runs continuously CORRECTIVE ACTION Replace thermostat Check wiring per diagrams Check op...

Page 44: ...re 3 Is spark in pilot gas stream 4 No pilot gas do not use match to test presence of gas is easily detected by the odor CORRECTIVE ACTION Check all connections term PV feeds 24V to pilot valve Check...

Page 45: ...er POSSIBLE CAUSE S 1 Power venter wheel loose 2 Power venter wheel dirty 3 Power venter wheel rubbing housing 4 Bearings are dry CORRECTIVE ACTION Replace or tighten Clean power venter wheel Realign...

Page 46: ...improperly wired 2 Defective venter relay switch 3 Motor overload protector cycling on and off 4 Motor not properly oiled CORRECTIVE ACTION Be sure venter relay heater terminals are connected per diag...

Page 47: ...fficiency Propeller Fan Gas Unit Heater 47 Part Identification Figure 20 Propeller parts 115 1 60 motor fan guard fan blade hardware Figure 21 Component parts bottom view D4430 Fan Guard Fan Blade Har...

Page 48: ...48 High Efficiency Propeller Fan Gas Unit Heater GHND SVX01A EN Part Identification Figure 22 Internal furnace components Figure 23 Burner assembly parts...

Page 49: ...maximum or 8 inch pounds is sufficient from the point where the tube does not slip in or out Note 3 Flue Sizes 30 75 units 4 dia flue outlet Reducer required To be supplied by installer 100 175 units...

Page 50: ...death or serious injury Note All hardware screws nuts washers that will be removed from the unit will be reused for this motor replacement DO NOT LOSE ANY OF THESE PARTS Figure 25 Power venter motor...

Page 51: ...rackets along with the Motor Item 10 mounts on the Mounting Adapter Plate Item 4 using a marker 4 Remove nut Item 5 that secures the Motor Support Shipping Bracket Item 6 to the Mounting Adapter Plate...

Page 52: ...piping and electric wiring appear to be installed in a professional manner Has the gas and electric been inspected by the local authority having jurisdiction Is the gas supply properly sized for the...

Page 53: ...and gas on Inlet gas pressure ____ in W C or ____ kPa Pilot main burner ignition Manifold gas pressure ____ in W C or ____ kPa Cycle on HIGH LIMIT Cycle firestat and or freezestat Check electronic mo...

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Page 55: ......

Page 56: ...act your local Trane office or e mail us at comfort trane com Literature Order Number GHND SVX01A EN Date 07 07 Supersedes GHND IOM 1A 04 1992 Trane has a policy of continuous product and product data...

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