FIGURE 13
COMPRESSOR COVER
VELCRO
STRAPS
SLIT FOR DISCHARGE LINE
SLIT FOR
SUCTION
LINE
COVER
COMPRESSOR
Page 8
3 – Compressor Cover (Figure 13)
A compressor cover
constructed of vinyl-faced
fiberglass is used on all
HP23-261 through -650 units.
The cover provides an
acoustic barrier. The cover
slides over the compressor
and is held secure with
velcro
straps. Slits are
provided for installation
around the discharge and suction lines.
4 – Crankcase Heater
A crankcase heater is used on all HP23–211 through
HP23–650 models. The well-mounted insertion-type
heater is self-regulating. See table 6 for crankcase heater
specifications. Crankcase heater is optional on -141 units.
Unit
HP23–211/-261/-311
HP23–411/-413 (CDN)
HP23 CRANKCASE HEATER RATINGS
TABLE 6
Rating (Watts)
19 watts
27 watts
40 watts
HP23-411–2,–461,
-510 and -650
HP23–411/-413
30 watts
C – Outdoor Fan Motor
All units use single–phase PSC fan motors which require
a run capacitor. In all units, the outdoor fan is controlled
by the compressor contactor and defrost relay.
ELECTRICAL DATA tables in this manual show
specifications for outdoor fans used in HP23s.
Two different mounting arrangements are used (fan
up and fan motor up) see figures 14 and 15.
Access to the outdoor fan motor on all units is gained
by removing the six screws securing the fan guard.
See figures 14 and 15. The outdoor fan motor is
attached to the fan guard on “motor up” units and is
removed with the fan guard. See figure 14.
FAN
OUTDOOR FAN MOTOR AND COMPRESSOR
ACCESS “MOTOR UP” UNITS (3 TONS AND UNDER)
Remove six
screws
Screws
REMOVE SIX SCREWS SECURING FAN GUARD.
REMOVE FAN GUARD/FAN ASSEMBLY.
MOTOR
FAN GUARD
WIRING
RACEWAY
FIGURE 14
Remove (6) screws
Screws
LIFT FAN GUARD OFF AFTER REMOVING SIX SCREWS
OUTDOOR FAN MOTOR AND COMPRESSOR
ACCESS “FAN UP” UNITS (3.5 TONS AND LARGER)
FAN
SPIDER
MOTOR
REMOVE SIX SCREWS
SECURING FAN GUARD.
REMOVE FAN GUARD
TO ACCESS FAN.
FIGURE 15
The reversing valve requires no
maintenance. It is not rebuildable. If the reversing
valve has failed, it must be replaced.
If replacement is necessary, access reversing valve by
removing the control box. HP23-460 through -650
series units have a filler panel that can also be removed
for reversing valve access. Refer to figure 16.
