Nordyne AND M5S Replace the furnace door, Operating Instructions for Direct Ignition Models M1M

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12.Set the thermostat mode to HEAT or a desired temperature setting and then ON.

WARNING:

Close the hinged fire door. If door is left open or spring is broken it may allow products of combustion into the living space by the furnace blower, resulting in possible asphyxiation.

13. Replace the furnace door.

NOTE:In the event of any flashback or explosion, immediately shut off the furnace and call your service technician.

WARNING:

Should overheating occur, or the gas supply fails to shut off, shut off the manual gas valve to the furnace before shutting off the electrical supply.

AVERTISSEMENT:

En case de température excessive, ou sail est impossible de cooper l’alimentation en gaz, fermer le robinet manuel d’alimentation en gaz du générateur d’sir chaud avant de cooper l’alimentation électrique.

How to Shut Off Gas - Standing Pilot

1.Set the thermostat to the lowest setting.

2.Turn off all electric power to the appliance at the breaker or fuse box.

3.Remove the furnace door.

4.Push in the gas control lever and move to the left to the OFF position. DO NOT FORCE!

5.Replace the furnace door.

Operating Instructions for Direct Ignition Models M1M

Direct ignition furnaces do not have a pilot.Ignition is accomplished by a silicon carbide hot surface ignitor. A control module takes care of all timing functions. After lighting, the control module uses the ignitor as a fl ame sensor, shutting off gas should the fl ame go out. There are no external relays or timing devices. Do not try to light this furnace by hand. The control module is not field serviceable.

1.Set the thermostat to the lowest setting.

2.Turn off all electric power to the appliance.

3.Remove the furnace door and turn off the gas valve:

•Honeywell: push in and turn the gas control knob clockwise to OFF (Figure 32)

•Robertshaw: push the gas control lever to the OFF position (Figure 33). Do not force!

4.Wait ten (10) minutes to clear out any gas. If you smell gas, STOP! and follow the Safety Information on page 19. If you do not smell gas, proceed to next step 5.

5.Set the thermostat MODE the ON position.

6.Turn the gas valve ON:

•Honeywell: push in and turn gas control knob counter-clockwise to ON (Figure 32).

•Robertshaw: push the gas control lever to the ON position (Figure 33). Do not force!

7.Replace the furnace door.

8.Turn on all electric power to the appliance.

9.Change the thermostat mode to HEAT and the temperature selector to a desired temperature level. The igniter should light in approximately 75 seconds. If the appliance will not operate, see “How To Shut Off Gas - Direct Ignition” and call your service technician or gas supplier.

NOTE:In the event of any flashback or explosion, immediately shut off the furnace and call your service technician.

GAS CONTROL KNOB

Figure 32. Direct Ignition

Gas Valve - Honeywell

Gas Control Lever

Figure 33. Direct Ignition

Gas Valve - Robertshaw

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Contents For installation Installation InstructionsHomeowner Information Installer Information Information Return Air Connections Supply Air ConnectionsStanding Pilot Models Direct Ignition Models Oil Gun Models Requirements and Codes Safety InformationGeneral Installation Gas Piping and Gas Pipe Pressure TestingSafety Combustion and Ventilation AirGeneral Information Minimum ClearancesALL Models Closet Alcove Applications AssemblyUnit Location BlowerReturn Air Connections Circulating AIR RequirementsGas piping is not run in or through the return duct system Supply Air ConnectionsDetermine which duct connector to use from Furnace InstallationGeneral Information Requirements and CodesDuct Connector Sizes Standard Duct Connector Installation Cut-Out Dimensions for Standard Duct ConnectorsInstalling The Furnace Duct Connector TabsRequired ceiling and roof cut-out openings see Roof Jack InstallationRoof Jack Selection Application NotesSlant Deck Flashings Roof Jack Series If Roof Pitch is Slant Deck FactorInstallation of Transit-Mode Venting System Installing The Roof JackConnect fl ue pipe to fl ue collar of furnace. See Figure Secure fl ashing with appropriate fastenersElectrical Information Line Voltage WiringWire Heating Heating/Cooling Low Voltage WiringThermostat Wire Gauge Thermostat Length Unit to T’STATImportant Notes Fuel Supply and PipingFuel line Hook-Up Oil Tank and Piping InstallationLeak Check Fuel Oil TypeConversion to Propane LP Gas Honeywell Gas Valve High Altitude ConversionStanding Pilot Valve Lighting Instructions Standing Pilot ModelsOperating Instructions for Direct Ignition Models M1M Replace the furnace doorBurner Adjustments For oil, shut off all valves Replace the furnace doorPilot Flame Standing Pilot Only Factory Combustion Air Settings Electrode Setting Oil Gun OnlyCombustion Air Standing Pilot Operating SequenceStanding Pilot w/Induced Draft Blowers M1M Models with Direct IgnitionFurnace Controls & Functions Troubleshooting Standing Pilot ModelsDirect Ignition Furnaces Including Gas Gun M1B Series see , Page Optional Accessories Burner will not start and the LED indicator isCad Cell Resistance when Sensing flame Cad cell is operational, replace the primary controlRed LED Indicator Status Control Module Status Indicators M1M SeriesControl Module Status Indicator M1B Control Module Status Indicator M5S SeriesInstaller Information MaintenanceAdditional Oil Furnace Maintenance Clean or replace the oil fi lter element at the oil tankM1GB Burner Direct Blower TonsM1MC Manifold Pressure Natural Gas 3.5 w.cOrifi ce Size Nat. Gas Orifi ce Size LP Equivalent Orifice Sizes for High Altitude InstallationsOutput Mbtuh Orifi ce Size Nat. GasGas Flow Rates Cubic Feet per Hour GAS InformationModels Wiring DiagramsM1GH 077, 090 Models M1GB 056, 070 Models Gas AtmosphericWiring Diagram Steady OFF No power Blinking Wiring Diagram Installation Address Installation / Performance Check List
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