Manual 2100-742A
Page
34 of 54
Check line power to motor
Check between red and black wires for line power
Verify ground by checking green wire to L1 and L2 line power
Check for 24VAC common signal to
motor (against transformer "R" signal)
Check "BR" terminal of fan logic control board
Check blue fan lead on fan relay terminal of defrost logic control
** Is not energized in cooling mode until low ambient fan cycling control is
closed by 325 PSIG refrigerant pressure. Above 65°F outdoors in cooling mode,
the low ambient control is bypassed.
** Circuit is completed automatically when "B" is energized on the fan logic
control board
TABLE 7
Troubleshooting ECM™ 142R Outdoor Fan Motors
an outdoor thermistor sensor to determine the
speed the fan should operate. It also utilizes the
“B” reversing valve input for heat pump mode
to determine which speed should operate.
Replacing the Motor
This motor is replaced in one piece. The control cannot
be replaced separately from the motor. Even if the
control is remotely located, the replacement part will
be a new control with harness and new motor.
The correct replacement motor from the manufacturer
that is a direct replacement for the failed motor must
be used.
Using the wrong motor voids all product warranties and
may produce unexpected results.
Always mount the replacement motor and control
according to the manufacturers specifications using
all required hardware to reduce vibration. Make sure
all wires are free of the fan blade and not pinched in
mountings or cabinet through points.
Содержание 11EER QH Series
Страница 16: ...Manual 2100 742A Page 16 of 54 MIS 2471 A REMOVE KNOCK OUT FOR INDOOR DRAIN HOSE CONNECTOR FIGURE 18C If used ...
Страница 43: ...Manual 2100 742A Page 43 of 54 GRAPH 1 Q24H4 FAD Ventilation Delivery GRAPH 2 Q30H4 FAD Ventilation Delivery ...
Страница 44: ...Manual 2100 742A Page 44 of 54 GRAPH 3 Q36H4 FAD Ventilation Delivery ...