33
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control is an automatic reset type and opens at
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modes.
Cooling Mode:
The compressor and fan motor
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Heating Mode:
The compressor and fan motor
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during a particular call for heating operation,
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outdoor ambient temperature rises to 5°F [-15°C].
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control could possibly have opened due to the
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actual system fault.
Exiting Lock-Out Mode:
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mode, remove 24 volts to the defrost control by
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together.
7.2 Compressor
Copeland Ultratech 2-stage scroll compressors are
used in all (-)P16 heat pumps. These compressors
have a special internal feature that minimizes noise
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mode. The 2nd capacity stage is activated by a
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connects to the 2nd stage terminals on the com-
pressor.
7.3 Fan Motor
2 and 3 ton models feature a 2 speed ECM outdoor
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cooling and heating operation and high speed for
2nd stage cooling and heating operation. Standard
single-speed PSC motors are used on 4 and 5 ton
models.
7.4 Outdoor Fan
All models utilize a standard paddle 2 or 3 blade fan
made from either aluminum or coated steel.
7.5 Compressor
Contractor
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-
nected directly to the terminal lugs on the line side
of the contactor.
7.6 Compressor/
Fan Motor Capacitor
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dual capacitor for both the compressor and fan
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utilize a single capacitor for the compressor.
7.7 Reversing Valve
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to provide either cooling or heating. The revers-
ing valve is energized in the heating mode and
is energized anytime the thermostat is set to the
“Heat” mode. The outdoor unit has a thermostat
pigtail that must be electrically connected to the “B”
terminal on the thermostat.
7.8 Charge Compensator
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charge compensator that stores a predetermined
amount of refrigerant in either the heating or cooling
mode so the refrigerant charge is optimized in both
the cooling and heating modes. The charge com-
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coming out each end and a 3/8” [9.53 mm] diameter
tube on one end that is connected to the liquid line
near the liquid service valve.
7.9 Discharge Line
Muffler
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noise inside the building structure.
7.0 COMPONENTS & CONTROLS
Components