Nordyne M1S, M1G Valve, Honeywell, Electrode Setting Oil Gun Only, Oil Gun electrode Position

Gently tighten the lock nuts after completing the adjustment. For best results, use instrument to measure between 8-9% CO2, after the com- bustion air has been adjusted. Note: Do not over-tighten the lock nuts, otherwise the plastic air shutter may be damaged.

Oil Gun Only

It is recommended that the CO2 and Smoke levels should be measured for maximum per- formance. CO2 readings should be 10-11% for 66,000 BTUH furnaces and 12-13% for 86,000 BTUH furnaces. The Smoke should be N0. 0 on the Bacharach Scale, and 0 to 0.02 negative draft over fire.

Electrode Setting (Oil Gun Only)

Poor ignition of the oil spray may result if the electrodes are not adjusted as shown in Figure

32.Do not permit any electrodes to be grounded to any surface.

Switching the Honeywell R7184 Ignition Control between Interrupted and Intermit- tent Duty (Oil Gun Only)

The Honeywell oil primary control can be switched between interrupted and intermittent ignition control. To switch from interrupted duty (Factory set) to intermittent duty, remove the igniter wire from the blue control wire. Attach the burner motor and igniter wire to the orange control wire. Cap and reseal the orange control wire. Cap and isolate the blue control wire.

5/32” GAP

ELECTRODE

5/16” ABOVE CL

NOZZLE

0-1/16”

1 3/8”

Figure 32. Oil Gun electrode Position

!CAUTION:

•Combustion air adjustment must be made only by a qualified technician. Improper air adjustment may cause unsafe operation, explosion and/or fire asphyxiation.

•If the input to the furnace is too great because of excessive gas pressure, wrong size nozzle or orifice, high alti- tude, etc., the burner flame will be sooty and can produce carbon mon- oxide, which could result in unsafe operation, explosion and/or fire or asphyxiation.

GAS CONVERSION

This gas fired heating appliance was shipped from the factory for use with natural gas. How- ever, the appliance can be converted for use with LP gas. Use the following procedure for gas conversion of the burner.

ATMOSPHERIC AND DIRECT IGNITION FURNACES

a.Follow the instructions to “Turn Off Gas to the Appliance.”

b.Disconnect the gas pipe union and the elec- trical wires connected to the gas valve.

c.Remove the pilot tube and thermocouple from the gas valve (M1G*).

Honeywell
Valve	T			OR		P
A			N		L
N
							L
	T		A			P
PRESSURE					OTHER SIDE
					OF CAP
REGULATOR
CAP
A	T	N
N
	T	A

M11678

Figure 33. Convertible Pressure

Regulator Cap

26