Thermo Pride GMC-85, Installation And Service Manual

Page 1: ...s instructions If you cannot reach your gas supplier call the fire department If the information in these instructions is not followed exactly a fire or explosion may result causing property damage pe...

Page 2: ...e and clear of combustible materials especially papers and rags NEVER burn garbage or refuse in your furnace NEVER try to ignite oil or gas by tossing burning papers or other material into your furnac...

Page 3: ...or gas leakage must be made after purging the gas line DO NOT wet electronic components during the leak test Wetting electronic components may damage circuitry and cause a hazardous situation Dry mois...

Page 4: ...nite oil or gas by tossing burning papers or other material into your furnace Do not attempt to start the burner when 1 Excess oil or gas has accumulated 2 The furnace is full of vapors 4 The combusti...

Page 5: ...performed by qualified service personnel 4 This page and the following page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Oil Furnace Please read and c...

Page 6: ...All installations and services must be performed by qualified service personnel 5 POWER SWITCH...

Page 7: ...NG 20 1 General Gas Piping 20 2 Oil Tank and Piping 21 J ELECTRICAL WIRING 23 1 Electrical Branch Supply Circuit 24 2 Connection of Power Supply Wires 24 3 Connection of Thermostat Wires 24 4 Wiring D...

Page 8: ...ons c American National Standard ANSI Z223 1 NFPA 54 for all gas fired furnaces d American National Standard ANSI Z95 1 NFPA 31 for all oil fired furnaces e American National Standard Electric Code AN...

Page 9: ...ass and plaster This heating appliance must be installed with clearances to combustible material surfaces of not less than the minimum distances given below Also allow ample clearances for servicing t...

Page 10: ...S 4 4 DESIGN TEMPERATURE RISE F 85 85 SEASONAL EFFICIENCY AFUE 84 82 AFUE INCLUDES STEADY STATE THERMAL EFFICIENCY AND OFF CYCLE LOSSES ELECTRICAL RATINGS AND SETTINGS ELECTRICAL SUPPLY 120 VAC 60HZ 1...

Page 11: ...PE MHC FIBER MHC FIBER OIL PUMP PRESSURE P S I G 100 FOR BURNER COMBUSTION INFORMATION REFER TO SECTION M FLUE GAS COMBUSTION ANALYSIS BLOWER DATA MANUFACTURER MORRISON PRODUCTS INC BLOWER MODEL 10 7...

Page 12: ...inches Maximum chimney sizes and acceptable installation practices are referenced in the following publications In lieu of local codes when installing the OMC 70 with fuel oil refer to the latest edi...

Page 13: ...All installations and services must be performed by qualified service personnel 12 Combustible Floor Base Model 70 BASE Figure 1A Cottage Base Model 01COT BASE...

Page 14: ...on duct at the connection point of feeder duct Remove the bottom panel Cut an opening in the duct slightly larger than the feeder duct Cut the feeder duct to length Refer to Figure 3 for location of t...

Page 15: ...end down each side of the feeder duct tightly to the top panel with the other hand This assures a tight connection between the top panel and the feeder duct and that the distribution duct will be full...

Page 16: ...the application conditions and temperatures e g using high temperature silicone caulk and or aluminum tape If the combustion air passageway cannot terminate outside of the structure a permanent openi...

Page 17: ...G COMBUSTION AIR for additional combustion air requirements Figure 4 F CLOSET INSTALLATION HAZARD OF ASPHYXIATION A suction effect will occur when the furnace is operating inside the closet with the...

Page 18: ...st have a flame spread classification of 200 or less 6 Pans made of a non combustible material having 1 inch upturned flanges are to be located beneath openings in a floor return air duct system 7 Wir...

Page 19: ...completely sealed to the burner enclosure base with high temperature silicone caulk NOTE The adapter may be cut with sheet metal shears to the appropriate size and secured over the inlet air duct ope...

Page 20: ...All installations and services must be performed by qualified service personnel 19 Figure 6...

Page 21: ...ype or flange jointed type using a gasket resistant to the corrosive effects of LP gases Pipe dope or sealant design certified to be resistant to the action of the LP gases should be used on all threa...

Page 22: ...and be properly tested for leaks Flare fittings are recommended for tubing Do not run the oil pump dry for more than five minutes Your furnace is factory equipped to operate on No 2 distillate fuel do...

Page 23: ...es to prevent condensate accumulation If the tank is above the burner and gravity oil feed to the burner is permitted a single line system may be used The line should have a gradual slope downward of...

Page 24: ...must be installed in strict accordance with local ordinances and codes In the absence of local ordinances and codes all electrical wiring must conform to the requirements of the National Electric Cod...

Page 25: ...h the original mounting screws 3 Connection Of Thermostat Wires NOTE Class 1 thermostat wire must be used inside the furnace burner compartment a Insert 24 VAC wires through the plastic grommet on the...

Page 26: ...to the thermostat b Increase the thermostat setting or create a call for heat c Read the value of the thermostat current in milliamps d Adjust the heat anticipator of the thermostat to the value read...

Page 27: ...All installations and services must be performed by qualified service personnel 26 4 WIRING DIAGRAM...

Page 28: ...e screw nuts provided in the Parts Kit 4 Connect the burner multipin electrical connector to the multipin connector in the furnace vestibule wiring harness For the oil burner installation OMC only 5 D...

Page 29: ...plies to gas units only and items g h applies to oil units only a Carbon dioxide CO2 or oxygen O2 analyzer b Flue gas thermometer range 100 F to 1000 F and temperature measuring device range 40 F to 2...

Page 30: ...verse conditions 2 CARBON MONOXIDE CO As described above take a flue gas sample from the flue pipe or vent connector at a position close to the furnace The amount of CO generated by combustion ideally...

Page 31: ...E GAS COMBUSTION ANALYSIS Burner adjustments must be confirmed by instrumentation Failure to use accurate or calibrated instrumentation to correctly setup the burner may result in reduced efficiency s...

Page 32: ...TING When testing electrical equipment always follow standard electrical procedures and precautions 1 Check for line voltage 110 120VAC to the furnace If there is no line voltage applied to the furnac...

Page 33: ...e in disconnected switch No Is the control transformer GMC or oil primary control OMC receiving 120 VAC Have either of the high limit thermostats activated No Yes No Yes Turn power switch on Wait for...

Page 34: ...Is there 120 VAC across the burner motor Is the blower impeller spinning If so check for blockages in or a collapsed air duct Is the air boot shutter open adequately Yes Check wiring to burner motor...

Page 35: ...one second If this does not work replace ignition control module On the OMC try resetting the oil primary control by depressing the RESET button If this does not work replace the oil primary No Yes Ye...

Page 36: ...ter dirty Does the fan timer energize the circulating air blower after the 56 second time delay Check settings on fan timer against those on connection diagram Is blower still inoperable after time de...

Page 37: ...s No No Check for reduced airflow through the furnace This may be caused by an excessively restrictive duct system an inadequate amount of supply air especially for furnaces installed in closets or ex...

Page 38: ...ross cad cell lead wires resistance should be less than 1600 ohms 2 Stop the burner and remove temporary jumper 3 With the burner off check dark cell resistance across cad cell lead wires Resistance s...

Page 39: ...anout covers 3 Remove cleanout covers the vent connector pipe to the chimney the burner and the burner mounting plate When removing the cleanout cover special care must be taken not to damage the gask...

Page 40: ...e air tube is properly inserted into the chamber opening If heavy soot deposits were found in the heat exchanger this indicates that the burner may be out of adjustment Reset the burner as indicated u...

Page 41: ...el supply shutoff valve s 2 Turn the furnace power switch off and disconnect electrical power to the unit 3 Fill the oil tank to prevent condensation oil units only 4 If shutdown exceeds one season an...

Page 42: ...Never try to ignite oil or gas by tossing burning papers or other material into the furnace Do not attempt to start the burner when 1 Excess oil or gas has accumulated 2 The furnace is full of vapors...

Page 43: ...ANT For safe operation it is the responsibility of the owner and or user that the burner chimney vent pipe heat exchanger and controls should be inspected every year by a qualified heating contractor...

Page 44: ...e around seams in pipe indicated by soot or condensate streaks 4 ROOF JACKS The furnace roof jack should be inspected for signs of rust or corrosion pitting or holes signs of excessive condensation or...

Page 45: ...All installations and services must be performed by qualified service personnel 44 APPENDIX A REPLACEMENT PARTS LIST...

Page 46: ...All installations and services must be performed by qualified service personnel 45...