MBE MOTOR This section references the operation characteristics of the MBE model motor only. The ECM control board is factory set with the dipswitch #4…
1. Disconnect the 5-pin and the 16-pin connectors from the ECM power head. 2. Remove the 2 screws securing the ECM power head and separate…
PSC MOTORS The auto reset fan motor overload is designed to protect the motor against high temperature and high amperage conditions by breaking the common…
CAPACITOR, RUN A run capacitor is wired across the auxiliary and main windings of a single phase permanent split capacitor motor. The capacitors primary function…
(Heat Pump Models) The loss of charge protector senses the pressure in the liquid line and will open its contacts on a drop in pressure.…
1. Remove outer case, control panel cover, etc., from unit being tested. With power ON: 2. Using a voltmeter, measure the voltage across terminals L1…
The AFE18 control is designed for use in heat pump applications where the indoor coil is located above/downstream of a gas or fossil fuel furnace.…
When the contacts of the room thermostat close making terminals R to Y & G, the low voltage circuit of the transformer is completed. Current…
The heating portion of the refrigeration cycle is similar to the cooling cycle. By energizing the reversing valve solenoid coil, the flow of the refrigerant…
The refrigerant used in the system is R-22. It is a clear, colorless, non-toxic, non-irritating, and non-explosive liquid. The chemical formula is CHCLF . The…