FC2500 Furnace Installation and Operation Manual
7.4 Thermostat installation Thermostat use will help you maintain a constant temperature throughout the house. A fixed wall mounted 24v thermostat is required. Note: Thermostat manufacturer’s instruction always overrides the information published in the following section. Thermostat location - Must be installed on an inside wall of the house;
- Where it will be the least affected by affected by air currents from a hot air outlet or cold outside walls; - Must be installed at a minimum of 55" (140 cm) above the floor; - Must be installed at a minimum of 15’ (4.57 m) from the furnace and must not receive radiation heat from the glass door. Thermostat wiring Before installing the thermostat, disconnect the furnace from the outlet. Use an 18 AWG 2 strand wire. The terminal block is located at the back on the left side of the furnace when facing it. It is identified with the letter “T”. Loosen the two screws in the middle of the terminal block and insert the wires in the terminal. Tighten the two screws. Open the thermostat housing and connect the wires following the manufacturer's instructions.
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