Do not touch any electrical switch; do not use any phone in your building. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you cannot reach your gas supplier, call the fire department. G24M SERIES 50HZ GAS FURNACE Litho USA...
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8 - TRANSFORMER 9 - BLOWER DOOR INTERLOCK SWITCH Do not use this furnace if any part has been under- water. Immediately call a qualified service techni- cian to inspect the furnace and to replace any part of the control system and any gas control which has been under water.
Your furnace is a gas appliance. It is critical that the gas supplied to the unit be completely burned to avoid the pro- duction of carbon monoxide gas. Complete combustion...
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OFF. Do not force. 5 - Replace the access panel. Filters G24M series units are equipped with external filters which should be inspected monthly and replaced when neces- sary to assure proper furnace operation. See table 1 for filter sizes. Replacement filters used with G24M-40/60/75 units must have a minimum velocity rating of 400 FPM.
UPFLOW FURNACE BOTTOM RETURN AIR FIGURE 4 UPFLOW FURNACE SIDE RETURN AIR FIGURE 5 DOWNFLOW FURNACE FILTERS IN PLENUM RACK FIGURE 6 Blower Check and clean blower wheel for any debris. Blower mo- tor is prelubricated for extended bearing life. No further lu- brication is needed.
Fresh air grilles and louvers (on the unit and in the room where the furnace is installed) - Must be open and unob- structed to provide combustion air. Burners- Must be inspected for rust, dirt, or signs of wa- ter.