5. FIELD WIRING AND REPLACING WIRING

All installations and services must be performed by qualified service personnel.

Manual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual backgroundManual background : TURN OFF THE ELECTRICAL POWER to the furnace before attempting to change blower speed wiring.

The furnace is factory wired to the ignition control with standard heating and cooling speeds. When changing motor speeds, simply switch the needed speed to either the heating or cooling terminal as applicable on the module to obtain the desired CFM. The unused speeds should then be reconnected to the module in the “park” positions. (Refer to figure 15) Refer to section II for blower speed and air flow performance for A/C installation.

5. FIELD WIRING AND REPLACING WIRING

Field wiring between the furnace and devices not attached to the furnace shall conform with the temperature limitation for Type T 35 C wire. If any of the original factory supplied furnace wiring is replaced or a separate device other than the thermostat is wired internal to the unit 105°C thermoplastic or equivalent wire must be used.

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Thermo Products CMA2-75N, CMA1-50N service manual Field Wiring And Replacing Wiring