INDUCED-COMBUSTION 58TUA & 58TMA GAS FURNACE USER’S INFORMATION MANUAL FORTHE OPERATION AND MAINTENANCEOF YOUR NEW GAS-FIRED FURNACENOTE TO INSTA
107. Inspect the return-air duct connection(s) at the furnace to ensure it is physically sound, sealed to the furnace casing, and terminates outside t
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TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or the classified section of your local telephone directory under the“Heating Equipment’
2 WELCOME TO TODAY’S GENERATION OF COMFORT Congratulations! Your new, high-efficiency gas furnace is a sound invest-ment which will reward you and you
3 DOWNFLOW/HORIZONTAL FURNACE COMPONENTS Manual Reset Auxiliary Limit SwitchBlower and Blower MotorRelief BoxGas Valve Control Knob or Electric Switc
4 qualified personnel should install, repair, or service heating equipment.Untrained personnel can perform basic maintenance func-tions such as cleani
5 121314 1516 1718 19 9. Open the external manual gas valve. (See Fig. 19.)10. Set the room thermostat to a temperature slightly above the room tempe
6 22 23 4. Remove the control access door on your furnace. (See Fig. 10 or 11.) On upflow furnaces, removing the blower access door is not required.5.
7 5. Wash filter (if dirty) in sink, bathtub, or outside with a gar-den hose. Always use cold tap water. A mild liquid deter-gent may be used if neces
8 29 NOTE: If dirt, rust, soot, or scale accumulations are found, call your servicing dealer. DO NOT OPERATE THE FURNACE.3. Inspect the vent pipe fo
9 3435 BEFORE YOU REQUEST A “SERVICE CALL’’Before you call for service, check for several easily solved problems:• Check for sufficient airflow. Check
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