Service manual

SERVICING
80
DIAGNOSTICS - 2-WIRE MODULE
Applies to ASX130[18-60]CA, ASX140[18-36]1CA,
ASX140421DA, and ASX140[48-60]1BA 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
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: 2-Wire
Comfort Alert™ Module on previous page.)
NOTE: The 2-wire Comfort Alert™ module does not provide
a diagnostic code 8, Welded Contactor. Additionally, the
2-wire module does not require a manual reset to clear
alert codes.
Schematic Abbreviation Descriptions
HTCO High Temperature Cut Out Switch
HPCO High Pressure Cut Out Switch
LPCO Low Pressure Cut Out Switch
CC Compressor Contactor
ECB Electronic Control Board
(Defrost or Time Delay)
ECB
CC
HTCO
LPCO
HPCO
Comfort Alert
Diagnostics Module
Bold line shows field
installed wiring
Dashed line shows thermostat
demand wiring in system without
HTCO, HPCO, CPCO, and ECB
LOGIC
C
Y
Y1C
R
Wiring Schematic - 2-Wire Comfort Alert™ Module