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Comfort Alert
Diagnostics (Select Models)
TM
— The Comfort Alert
through innovation for troubleshooting heat
pump and air conditioning system failures. The
module installs easily in the electrical box of
the outdoor unit near the compressor contac-
tor. By monitoring and analyzing data from the
Copeland Scroll compressor
demand, the module can accurately detect the
cause of electrical and system related failures
without any sensors. A flashing LED indicator
communicates the ALERT code and guides the
service technician more quickly and accurately
to the root cause of a problem.
NOTE: This module does not provide safety
protection! The Comfort Alert module is a
monitoring device and cannot shut down the
compressor directly.
LED Description (See Figure 2)
POWER LED (Green): indicates voltage is pres-
ent at the power connection of the module.
ALERT LED (Yellow): communicates an
abnormal system condition through a unique
flash code. The ALERT LED will flash a number
of times consecutively, pause and then repeat
the process. The number of consecutive
flashes, defined as the Flash Code, correlates
to a particular abnormal condition. Detailed
descriptions of specific ALERT Flash Codes are
shown in Table 1 of this manual.
6
diagnostics is a break-
TM
and the thermostat
®
Figure 2. Comfort Alert
TRIP LED (Red): indicates there is a demand
signal from the thermostat but no current to the
compressor is detected by the module. The TRIP
LED typically indicates the compressor protector
is open or may indicate missing supply power
to the compressor.
The scroll compressor's run (R), common (C) and
start (S) wires are routed through the holes in the
Comfort Alert
The common (C) wire need not be routed through
the module for it to operate properly.
24 VAC Power Wiring — The Comfort Alert
module requires a constant nominal 24 VAC
power supply. The wiring to the module's R and
C terminals must be directly from the indoor unit
or thermostat. The module cannot be powered by
the C terminal on a defrost board or other control
board without experiencing nuisance alerts.
C
R
L
Y
24 Volt Field
Connections
Figure 3. 24VAC Comfort Alert
POWER
ALERT
TRIP
Diagnostics Module
TM
module marked "R," "C" and "S."
TM
Comfort Alert
C
R
L
Y
Wiring Diagram
TM
LPS
CC
TM
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