Page 12
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2
3
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SUCTION
SUCTION
ORBITING SCROLL
STATIONARY SCROLL
SUCTION
SUCTION
DISCHARGE
SUCTION
INTERMEDIATE PRESSURE
GAS
CRESCENT SHAPED
GAS POCKET
HIGH PRESSURE GAS
FLANKS SEALED
BY CENTRIFUGAL
FORCE
MOVEMENT OF ORBIT
FIGURE 12
C − Outdoor Fan Motor (B4)
All units use single−phase PSC fan motors which require a run
capacitor. In all units, the condenser fan is controlled by
the compressor contactor (and defrost control during
defrost cycles).
ELECTRICAL DATA tables in this manual show specifi-
cations for condenser fans used in 14HPXs.
Access to the condenser fan motor on all units is gained
by removing the seven screws securing the fan assem-
bly. See figure 13. The outdoor fan motor is removed
from the fan guard by removing the four nuts found on
the top panel. If replacing outdoor fan motor on the
14HPX−060, align motor shaft 1/4" from the hub. For all
other 14HPX model units, motor shaft should be flush
with hub. See figure 13. Drip loops should be used in wir-
ing when servicing motor.
D − Reversing Valve (L1) and Solenoid
A refrigerant reversing valve with electromechanical so-
lenoid is used to reverse refrigerant flow during unit op-
eration. The reversing valve requires no maintenance.
The only replaceable part is the solenoid. If the reversing
valve itself has failed, it must be replaced.
If replacement is necessary, access reversing valve by re-
moving the outdoor fan motor. Refer to figure 13.
FAN
CONDENSER FAN MOTOR
AND COMPRESSOR ACCESS
Remove (7) screws
REMOVE (7) SCREWS
SECURING FAN GUARD.
REMOVE FAN GUARD/
FAN ASSEMBLY.
FAN GUARD
WIRING
FIGURE 13
Remove (4) nuts
ALIGN FAN HUB
FLUSH WITH
MOTOR SHAFT.
ON −060 UNITS
SHAFT SHOULD
BE 1/4" FROM
HUB.
Make sure all power is disconnected before
beginning electrical service procedures.
DANGER
