Rheem RP14 14 SEER - Compressor; Crankcase Heat (CCH) ��������������������������������������27; Hard-Start Components ������������������������������������27; High- and Low-Pressure

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While scroll compressors usually do not require
crankcase heaters, there are instances when a
heater should be added� Refrigerant migration
during the off cycle can result in a noisy start up�
Add a crankcase heater to minimize refrigeration
migration, and to help eliminate any start up noise
or bearing “wash out�”
NOTE: The installation of a crankcase heater is
recommended if the system charge exceeds the
values in the table below� The 5 ton model comes
with a crankcase heater factory installed�
All heaters are located on the lower half of the
compressor shell� Its purpose is to drive refrigerant
from the compressor shell during long cycles,
thus preventing damage to the oompressor during
start-up�
At initial start-up or after extended shutdown
periods, make sure the heater is energized for at
least 12 hours before the compressor is started�
(Disconnect switch on and wall thermostat off�)
Compressor Crankcase Heat (CCH)
High- and Low-Pressure Controls (HPC and LPC)
Standard on RP14: These controls keep the
compressor from operating in pressure ranges
which can cause damage to the compressor� Both
controls are in the low-voltage control circuit�
The high-pressure control (HPC) is an automatic-
reset which opens near 610 PSIG and closes near
420 PSIG�
The low-pressure control (LPC) is an automatic-
reset which opens near 15 PSIG and closes near
40 PSIG�
CAUTION: The compressor has
an internal overload protector� Under some
conditions, it can take up to 2 hours for this
overload to reset� Make sure overload has had
time to reset before condemning the compressor�
Start components are not usually required with
the scroll compressors used in heat pumps, but
are available for special cases and where start
components are desirable to reduce light dimming�
Hard start components are available through
Prostock�
Hard-Start Components
COMPONENTS AND CONTROLS
MAXIMUM SYSTEM CHARGE VALUES: (-)PNL
Charge Limit
Model Compressor Without
Size*Model Number Crankcase Heater*
-018 ZP16K5E-PFV-13R 9.6 lbs.
-024 ZP21K6E-PFV-130 9.6 lbs.
-030 ZP25K5E-PFV-13R 9.6 lbs.
-036 ZP31K5E-PFV-13
R9
.6 lbs.
-048 ZP42K5E-PFV-13R 12 lbs.
-060 ZP49K6E-PFV-130 12 lbs.
Components