Download Goodman Heat Pump Manual

SERVICING
CHECKING RELAY CONTACTS - ECM FAN MOTOR
HIGH VOLTAGE!
Disconnect ALL power before servicing
or installing. Multiple power sources
may be present. Failure to do so may
cause property damage, personal injury
or death.
1. Disconnect the motor leads from 6-circuit fan motor wire
harness.
defects and broad system faults. If a glitch is detected, an
LED indicator flashes the proper alert codes to help you
quickly pinpoint the problem. See Diagnostic Table: 3-Wire
Comfort Alert™ Module on previous page.)
Bold line shows field
installed wiring
CC
Dashed line shows thermostat
demand wiring in system without
HTCO, HPCO, CPCO, and ECB
Comfort Alert
Diagnostics Module
Y
C
R
ECB
HTCO
3. Energize the system at low or high stage.
HPCO
LOGIC
2. Connect a voltmeter between circuit 6 and circuits 3 (low
speed) or 1 (high speed).
NOTE: Circuit 6 is connected directly to 24VAC.
LPCO
R
C
Y1
Schematic Abbreviation Descriptions
HTCO High Temperature Cut Out Switch
HPCO High Pressure Cut Out Switch
LPCO Low Pressure Cut Out Switch
CC
ECB
Compressor Contactor
Electronic Control Board
(Defrost or Time Delay)
WARNING
Line Voltage now present.
Wiring Schematic - 3-Wire Comfort Alert™ Module
4. The measured voltage between circuit 6 and circuits 3 or
1 should be approximately 0VAC, which indicates the
relay contacts are closed. A voltage measurement of
approximately 24VAC indicates the relay is open. Replace the control if the relay checks open when it should
be closed. See notes and cautions below.
5. Circuit 5 is connected to 24VAC common. The measured
voltage between circuits 6 and 5 should be 24VAC.
NOTE: Ensure any ON delays have expired before making
voltage measurements
CAUTION: Prolonged operation with the condenser fan
motor disconnected will cause the high pressure switch to
trip.
S-10 COPELAND COMFORT ALERT™
DIAGNOSTICS - 3-WIRE MODULE
Applies to ASX /ASZ and DSX/DSZ units
Comfort Alert™ is self-contained with no required external
sensors and is designed to install directly into the electrical
box of any residential condensing unit that has a Copeland
Scroll™ compressor inside.
Once attached, Comfort Alert™ provides around-the-clock
monitoring for common electrical problems, compressor
59