Nordyne M1M, M1G For Your Safety What To Do If You Smell Gas, Do not try to light any appliance

remains open if flame is sensed, or closes if flame is not sensed.

e.If flame is not sensed, the entire sequence is repeated four more times before “lockout” occurs. To reset, wait 30 seconds and then interrupt the 24 VAC power by turning the room thermostat below room temperature, then returning it to the original set point.

f.If flame is not established on the fifth trial for ignition (initial try + 4 re-tries), the control de- energizes the gas valve, flashes “4” on the Status LED, and lockouts out heat operation for 1 hour.

g.If a flame is present, the control energizes the main blower on heat speed 30 seconds after the gas valve opens.

h.When call for heat is satisfied the thermostat contacts open, the gas valve shuts off gas flow and the combustion blower remains on for a 30 second post-purge period.

i.The main blower is de-energized after a 120 second blower off delay.

!WARNING:

FOR YOUR SAFETY; WHAT TO DO IF YOU SMELL GAS:

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas sup- plier, call the fire department. Should overheating occur or the gas supply fail to shut off, disconnect the power at the main circuit breaker and then see “To Turn Off Gas To Appliance.”

OPERATING INSTRUCTIONS FOR OIL AND GAS GUN FURNACE:

Oil Gun Model

M1 oil gun furnaces may be converted to gas gun in the field by using the proper conversion kit listed in the RPL.

If your furnace model number begins with M1S*, the furnace is equipped with an ignition device which automatically lights the burner.

Do not try to light this furnace manually.

a. Open all valves in the oil line. b. Be sure the fire door is closed. c. Set the On-Off switch to “ON”.

d. Set the thermostat to the desired setting.

SEQUENCE OF OPERATION FOR OIL GUN MODELS

Oil Furnace - Honeywell R7184 Control

1.When a call for heat is initiated, there is a 2- 6 second delay while the control performs a safe start check.

2.The ignition and motor are turned on and a flame should be established within the 15- second lockout time. NOTE: Burner will prepurge for 15 seconds if equipped with R7184B Control.

3.If flame is not sensed within the 15-second lockout time, the control shuts down on safety lockout and must be manually reset. If control locks over three times in a row, the control enters restricted lockout. To reset, hold down the reset button for 30 seconds until the LED flashes twice.

4.Once flame is established, the ignition re- mains on 10 seconds to ensure flame stabil- ity. It then turns off.

5.The circulating air blower will energize after the temperature fan switch closes.

6.The furnace runs until the call for heat is satisfied.

7.The circulating air blower will de-energize when the temperature fan switch opens.

!WARNING:

If furnace still does not light, turn the furnace off (described above) and call your technician. In the event of any flashback or explosion, immediately shut off furnace and call your service technician.

Gas Gun Models

M1 gas gun furnaces may be converted to oil gun in the field by using the proper conversion kit listed in the RPL.

If your furnace model number begins with M1B*, the furnace does not have a pilot. Ignition is

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