Lennox Hearth MPD35ST-PM, MPD35ST-NM, MPD35ST-NE manual Appliance

WARNING

Carbon monoxide poisoning: early signs of carbon monoxide poisoning are similar to the flu with headaches, dizziness and/or nausea. If you have these signs, obtainfreshairimmediately.Turn off the gas supply to the appliance and have it serviced by a quali- fied professional, as it may not be operating correctly.

WARNING

Children and adults should be alerted to the hazards of high surface temperatures. Use cau- tion around the appliance to avoid burns or clothing ignition.

		Note:The gas supply
		line must be installed
		in accordance with
			building codes by a
			qualified installer
			approved and/or
			licensed as requed
			by the locality. In
	OFF/PILOT/ON (gas control knob)		the Commonwealth
HI/LO (flame height				of Massachusetts,
				installation must
control knob)
				be performed
				by a licensed
OFF/ON Switch		Gas Flex Line		plumber or gas
				fitter.
Hinge Pin
		Gas Valve
Control	Piezo Igniter
Compartment Access panel
Figure 1 - Gas Control Compartment Access
OPERATION AND CARE OF YOUR		SIT Millivolt		Gas Valve
APPLIANCE
		HI/LO Variable
				Inlet Pressure Tap
The standard controls for appliance operation		Flame Height
		Adjustment
are located behind the hinged drop-down panel
		Manifold Pressure Tap

Youngchildrenshouldbecarefully supervised when they are in the same room as the appliance.

Note: An Optional Screen Heat Guard for the glass is available (see Page 14 for ordering infor- mation).

below the appliance front glass enclosure panel (see Figure 1). Optional control switches are also available (see Page 12 - Remote Wall

Switch, Remote Control or Wall Thermostat).

Operation of millivolt and electronic gas con- trol systems are different. Before lighting and operating your appliance determine if you have a millivolt or electronic appliance. Familiarize yourself with the gas control valve that your appliance uses. Refer to Figure 1 for access

			OUT	IN
TPTH
T		I H
P			OFF
				P
				I
		LO W	it	L
TH				O
			NO	T
		P
	I
	TOL

Pilot Adjustment	Main Gas
Screw	Control Knob
	OFF/PILOT/ON

WARNING

Any safety guard or screen removed for servicing the appli- ance must be replaced prior to operating the appliance.

Gas Control Compartment Access

The gas controls can be found behind the control compartment access panel.

To open the control compartment access panel,

to the gas control valve.

Millivolt Appliances - Appliances with Millivolt systems will be fitted with the gas control valve shown in Figure 2.

Electronic Appliances - Appliances with electronic systems will be fitted with the electronic valve shown in Figure 3.

Millivolt Appliances -

To light millivolt appliances refer to the detailed lighting instructions found on Page 15 . Millivolt appliance lighting instructions may also be found on the pull out lighting instruction labels attached to the gas control valve.

Gas

Outlet

Terminals

TPTH,TP & TH

OFF ON

Gas

Inlet

TPTH
TP
TH
HI/LO Variable	Main Gas
Flame Height	Control Knob
Adjustment	OFF/PILOT/ON

OFF/ONIGNITER (burner)

4

actuate the spring-loaded magnetic catches securing the panel. First, depress the outer top right corner of the panel until the catch "pops" the door free. Then, gently pull the door forward until the left top corner "pops" free, allowing the panel to swing out and down to open.

On millivolt systems, the piezo igniter, HI/LO flame adjustment knob, and pilot and main gas OFF/ON control knob are located below the glass panel enclosure. The gas valve for electronic systems is also located below the glass enclosure panel. See Figure 1.

To ease door closure, depress the catches to place them in their retracted position, then close the door.

Millivolt appliances are fitted with an OFF/ON Rocker Switch located behind the control compartment access panel, below the appli- ance front glass enclosure panel (see Figure 1 for location). Once the pilot is lit, the OFF/ON rocker switch will control the appliance OFF/ON burner operation. To operate: Toggle the switch between its ON and OFF positions.

If your millivolt appliance is equipped with an optional remote switch kit (wall switch, remote control or wall thermostat) and the pilot is lit, the appliance main burner may be turned on and off using the optional switch. When using an optional remote switch, turn off the standard OFF/ON switch.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

	Note: The piezo igniter and burner
	OFF/ON switch are located below
Figure 2	glass panel (see Figure 1).

Note: To prevent excessive resistance in burner circuit (which can cause burner operation prob- lems), only one burner control switch should be wired to valve. Therefore, if an optional control switch is installed, the standard Off/On switch and wires should be removed.

Electronic Appliances -

To light electronic appliances refer to the detailed lighting instructions found on Page 16. Elec- tronicappliancelightinginstructionsmayalsobe found on the pull out lighting instruction labels attached to the gas control valve.