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manual abstract
S If a suspected malfunction occurs with your gas control system, such as the burners do not light when they should, refer to the shutdown procedures on inside of main furnace door, or in the “Shutting Down Your Furnace” section and call your dealer as soon as possible. ! WARNING FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in personal injury/death or property damage. Should the gas supply fail to shut off or if overheating occurs, turn off the manual gas valve to the furnace BEFORE turning off the electrical supply. (See Fig. 8.) S CHECK AIR FILTER: Before attempting to start your furnace, be sure the furnace filter is clean and in place. See “Performing Routine Maintenance” section in this manual. Then proceed as follows: Steps For Starting Your Furnace 1. Set your room thermostat to the lowest temperature setting. (See Fig. 7.) 2. Close the external manual gas valve. (See Fig. 8.) A08013 Fig. 7 - --Lowest Temperature Setting CLOSE A06188 Fig. 8 - --Close Valve 3. Turn OFF electrical supply to the furnace. (See Fig. 9.) 4. Remove main furnace door. (See Fig. 10.) 5. The gas valve will have a control switch to turn off and on. Turn the control switch on the gas control to the OFF position and wait 5 minutes. (See Fig. 11.) Then smell for gas,includingnearthefloor.Ifyousmellgas,STOP! Follow “B” on furnace label. If you don’t smell gas, go to next step. 6. After waiting 5 minutes, turn the control switch on the gas control to the ON position. (See Fig. 12.) 5 6 A92185 Fig. 9 -- Turn Off Electrical Supply A05099 Fig. 10 -- Remove Furnace Door A04150 Fig. 11 -- Control Switch to OFF A04151 A04151 Fig. 12 -- Control Switch to ON A05100 Fig. 13 -- Furnace Door Replaced A92359 Fig. 14 -- Turn On Electrical Supply OPEN A06189 Fig. 15 -- Open Valve 7. Replace main furnace door. (See Fig. 13.) 8. Turn ON the electrical supply to the furnace and wait 1 minute. (See Fig. 14.) 9. Open the external manual gas valve. (See Fig. 15.) 10. Set the room thermostat to a temperature slightly above the roomtemperature. Thiswill automatically signal the furnace to start. 11. When the furnace receives the start signal, the inducer is started. When the pressure switch senses that there is suf-- ficient combustion air, the hot surface igniter is energized. After the hot surface igniter is heated for 17 seconds, the gas valve permits gas to flow to the main burners. After ignition and a timedelay of about30 sec, the furnace blowerwill start. Variable--capacity furnaces start at medium speed until the control makes the necessary adjustments to operate the blower at either the low--, medium--, or high--heat speed. 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. 7 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 canmake a big difference in your fuel consumption. Thefew 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. With the unique feature Fan On Plust, 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. If you own an Evolution Control, simply push the “fan” button to change the fan speed. SHUTTING DOWN YOUR FURNACE A08013 Fig. 16 -- Lowest Temperature Setting 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: 1. Set your room thermostat to the lowest temperature setting. (See Fig. 16.) 2. Turn off electrical supply to the furnace. (See Fig. 17.) 3. Remove main furnace door. (See Fig. 10.) 4. Turn the switch on the gas control to theOFF position. (See Fig. 18.) A92185 Fig. 17 -- Turn Off Electrical Supply A04150 Fig. 18 -- Control Switch to OFF 5. Replace the main furnace door. (See Fig. 13.) 6. If...