Bryant 376CAV, 373LAV, 383KAV manual Steps For Starting Your Furnace, important safeguards

safety-alert symbol. DANGER identi- fies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage.

STARTING YOUR

FURNACE

Instead of a continuously burning pilot flame, your furnace uses an automatic hot surface ignition system to light the burners each time the thermostat sig- nals the furnace to start. Follow these

important safeguards:

•Never attempt to manually light the burners with a match or other source of flame.

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•Read and follow the operating in- structions on the furnace, especially the item that reads as follows:

Wait 5 minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B’’ in the safety information above on this label. If you don’t smell gas, go to the next step.

•If a suspected malfunction occurs

with your gas control system, such as the burners do not light when they should, refer to the shutdown proce- dures on the furnace, or in the next sec- tion, to turn off your system, then call your dealer as soon as possible.

!WARNING

Should overheating occur, or the gas valve fail to shut off the gas supply, turn off the manual gas valve (See Fig. 8) to the fur- nace BEFORE turning off the electrical supply. A failure to follow this warning could re- sult in a fire or explosion, and personal injury or death.

•CHECK AIR FILTER: Before at- tempting to start your furnace, be sure the furnace filter is clean and in place. (See the maintenance section of this manual.) Then proceed as follows:

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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.)

3.Turn OFF the electrical supply to your furnace. (See Fig. 9.)

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4.Remove the furnace access door(s).

a.Downflow/Horizontal—remove blower door after removing

2 screws first, then remove the control door. (See Fig. 10.)

b.Upflow—remove control door. (See Fig. 11.)

5.The gas valve will have EITHER a control knob or control switch to turn off and on. Turn the control knob or switch on the gas valve to the OFF position and wait 5 min- utes. (See Fig. 12 or 13.)

6.After waiting 5 minutes, turn the control knob or switch on the gas valve to the ON position. (See Fig. 14 or 15.)

7.Replace the access door(s). See Fig. 16 for upflow and Fig. 17 for downflow. Replace control door first on downflow furnaces. Then replace blower door (secure with 2 screws).

8.Turn ON the electrical supply to the furnace. (See Fig. 18.)

9.Open the external manual gas valve. (See Fig. 19.)

10.Set the room thermostat to a tem- perature slightly above the room temperature. This will automati- cally signal the furnace to start. The inducer motor will start, and the hot surface ignitor will energize. When hot, the ignitor will have an orange glow.

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