Heat Wagon 950H(L) Installation And Maintenance Manual Download Page 17 | Manualshive

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MAIN CIRCUIT DIAGRAM

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Summary of Contents for 950H(L)

Page 1: ...in this manual for future reference 342 N Co Rd 400 East Valparaiso IN 46383 219 464 8818 Fax 219 462 7985 www heatwagon com Revision 8 14 For your safety Do not use this heater in a space where gasoline or other liquids having flammable vapors are stored NRTL ANSI Z83 7 CONST HTR ...

Page 2: ...overning codes We cannot anticipate every use which may be made for our heaters CHECK WITH YOUR LOCAL FIRE SAFETY AUTHORITY IF YOU HAVE QUESTIONS ABOUT LOCAL REGULATIONS Other standards govern the use of fuel gases and heat producing products in specific applica tions Your local authority can advise you about these FOR YOUR SAFETY DO NOT USE THIS HEATER IN A SPACE WHERE GASOLINE OR OTHER LIQUIDS H...

Page 3: ...r entities will not be considered Warranty claims must include model number and serial number LIMITATIONS Warrant claims for service parts wear parts such as spark plugs igniters flame rods will not be allowed Diagnostic parts such as voltage meters and pressure gauges are not warrantable Evidence of improper fuel usage fuel pressures outside of manufacturer s specification poor fuel quality and i...

Page 4: ...CTION The Model 950HS uses a heavy gauge steel housing and a stainless steel burner for long life and consistent performance NOTE In order to maintain the highly efficient combustion of the heater the combustion cham ber must remain as manufactured Any change or distortion could alter the fuel air mixture and create excessive products of combustion SPECIFICATIONS Model No 950H 950HL Designed to AN...

Page 5: ... be replaced prior to the heater being put into operation The replacement hose assembly shall be that specified by the manufacturer 4 When connecting the heater to a natural gas or propane supply line ensure that the pressure at the heater inlet is within the specified range Excessive pressure over 14 W C will damage the controls and void the warranty 5 Connect the hose assembly to the heater gas ...

Page 6: ...lector valve located on the lower manifold to the Propane posi tion When using Natural Gas turn the selector valve to the Natural Gas position This unit can be set up indoors or out 6 NATURAL GAS QUICK REFERENCE HOSE CHART Hose BTU Length 1 Million in Feet 1PSI 1PSI 2PSI 5PSI 10 1 1 2 1 1 4 3 4 3 4 25 2 1 1 4 3 4 3 4 35 2 1 1 4 3 4 3 4 50 2 1 1 4 1 3 4 75 2 1 1 4 1 1 4 3 4 100 2 1 1 4 1 1 4 3 4 12...

Page 7: ...ve National Standard COMMON INSTALLATION AND OPERATIONAL PROBLEMS 1 LOW VOLTAGE AT THE HEATER This is one of the most common problems and is usually the result of the supply cord having too small a wire gauge for its length or low voltage at the power source Low voltage results in the motor overheating burnt relay contacts or a relay that will not make contact Check voltmeter on heater before star...

Page 8: ... open shut off valve at gas meter or propane tank Check for leaks 5 Push up the ON switch 6 Set thermostat for desired room temperature 7 To stop turn thermostat down or push down the stop switch Burner will turn off after 10 seconds fan will turn off 8 Close manual shut off valve on heater NOTE FAN ONLY switch must be in the Off position for Heat Mode NOTE If the heater will be shut down over nig...

Page 9: ...wer from IND terminal to coil of the motor relay 8 MOTOR RELAY With its coil energized it closes its contacts sending power to the fan motor 9 FAN MOTOR Turns the fan blade causing the air flow switch to close 10 AIR FLOW SWITCH Received its power from the thermostat and sends the power to the indicator light and the DSI control PSW terminal 11 DSI CONTROL Sends power from IND terminal to coil of ...

Page 10: ...gauge if gas is present clean the port holes in burner Flame occurs but burner locks out after a few seconds Check the flame rod if the porcelain is cracked or the electrode is rubbery replace it If the 1st step checks out replace the DSI control Flame occurs but small Check proper pressure at manifold gauge If yes A Clean port holes in burner B Check proper position of Gas selector valve For Natu...

Page 11: ... the reliable performance required it is necessary to do a certain amount of regular maintenance 1 CHECK POWER CORD A Insulation not frayed or cracked B Ground peg is there on male end C Polarity is correct Black wire on fuse white wire on neutral block 2 CHECK ALL WIRING FOR PROPER CONNECTIONS 3 CHECK MOTOR RELAY A If it buzzes clean contacts or replace B Check for voltage drop through contacts i...

Page 12: ...P HG950A 22 Fan Guard 9 HWP HC1064 Burner Access Door 10 HWP HW1065 Wheel 950H Non Stackable 11 HWP 1190310 Pilot w Spark Rod and Flame Rod 11A N A Pilot Assy Bracket 11B HWP 134290 Igniter 11C HWP 136003 Flame Rod 12 HWP HW1065D Axle 950H Non Stackable After S N H5688 Igniter replaced with spark plug SFP 2143 12 MODEL 950H 950HL Before Serial H5688 After Serial H5688 Spark Plug SFP 2143 Spark Plu...

Page 13: ...rt Description 1 HWP HV1120 Gas Selector Valve 1 1 4 Locking 2 HWP HV1169 Gauge 15 W C 3 HWP HV1138 1 1 4 Solenoid Valve 4 ACC 11SV08 Regulator 5 HWP HV1121 1 1 4 Ball Valve 6 HWP HV1122 1 1 4 Y Strainer 7 SFP 4490 2 Stage Regulator Valve MODEL 950 IGNITER ...

Page 14: ... 2446 Hi Limit Switch 6 HWP HC1123 Terminal Block C 7 SFP 9264 Motor Relay 8 HWP HC1122 Fuse Block 9 HWP HC1115 Fuse 20 amp 10 HWP 44130 Light 11 HWP HC1011 Fan Only Switch 12 HWP HC1019B 3amp Breaker 13 HWP HC1150 OFF Switch 14 HWP HC1149 ON Switch 15 HWP HC1123 Terminal Block D 16 HWP HC1120 Thermostat w o cord not shown 17 HWP HC1020 Power cord not shown ...

Page 15: ...15 950H CONTROL BOX WIRING Before Serial H5688 Igniter After Serial H5688 Spark Plug Spark Plug Igniter or ...

Page 16: ...950H CONTROL BOX WIRING No Neutral Shown 16 ...

Page 17: ...17 MAIN CIRCUIT DIAGRAM ...

Page 18: ...ulator for decreasing tank pressure Max incoming 300psi Adjustable outlet pressure 3 30 psi HIGH TEMPERATURE DUCT 950H ACC WD2425HT 1800B ACC WD2025HT GAS HOSE ACC 7525 3 4 x 25 ACC 7550 3 4 x 50 ACC 1025 1 x 25 ACC 1050 1 x 50 CSA certified for NG and Propane Female Swivel Unions Included P O L FITTING TO CONNECT TO PROPANE SUPPLY ACC G1680 ...

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