Performing Routine Maintenance, Op E, Open Valve

OP

A06189

Fig. 17 - Open Valve

NOTE: If the burners fail to ignite after 4 attempts, the furnace control system will lock out. If lockout occurs, main burners fail to light, or blower does not come on, shut down the furnace and call your dealer for service.

12.Set your thermostat to the temperature that satisfies your comfort requirements.

SUGGESTION: Setting the thermostat back a few degrees and compensating for the difference with warmer clothing can make a big difference in your fuel consumption. The few degrees at the top of your thermostat “comfort level” are the most costly degrees to obtain.

When the room temperature drops below the temperature selected on the thermostat, the furnace will switch on automatically. When the room temperature reaches the temperature selected on the thermostat, the furnace will be switched off automatically.

Some thermostats have a FAN mode with 2 selections: AUTO and ON. When set on AUTO, the furnace blower cycles on and off. In the ON mode, the furnace blower runs continuously. Continuous fan keeps the temperature level in your home more evenly balanced. It also permits the indoor air to be continuously filtered. ComfortFant, the blower speed can be increased or decreased if desired due to change of seasons, large gatherings in your home, etc. Simply change your FAN from ON to OFF for 1 to 3 seconds (or AUTO depending on your thermostat), and then return to ON. The blower will switch to the next higher speed. There are at least 3 speeds to choose from. If the blower is running on its highest speed, a request to change will direct the blower to return to its lowest speed.

Shutting Down Your Furnace

Should you ever need to shut down your furnace for service or maintenance, you will need to turn the furnace off. The following procedures must be followed:

A95166

Fig. 18 - Lowest Temperature Setting

1.Set your room thermostat to the lowest temperature setting. (See Fig. 18.)

2.Turn off electrical supply to the furnace. (See Fig. 19.)

3.Remove main furnace door. (See Fig. 10.)

4.Turn the switch on the gas control to the OFF position. (See Fig. 20 or 21.)

A92185

Fig. 19 - Turn Off Electrical Supply

A04150

Fig. 20 - Control Switch to OFF

	M	1
O	P	3
F	P
F
F	C	2
	C	2
	ON

A06338

Fig. 21 - Control Switch to OFF

5.Replace the main furnace door. (See Fig. 15.)

6.If the furnace is being shut down because of a malfunction, call your dealer as soon as possible.

!CAUTION

UNIT AND PROPERTY DAMAGE

Failure to follow this caution may result in damage to the furnace and other property damage.

Furnace is not to be installed, operated, and then turned off and left turned off in an unoccupied structure during winter. (See “Heading South for the Winter” procedures in maintenance section on page 12).