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Comfort Alert
Diagnostics – Faster Service And Improved Accuracy
Comfort Alert is a breakthrough innovation for troubleshooting heat pump and air
conditioning system failures. The module easily installs in the electrical box of the
outdoor unit near the compressor contactor. By monitoring and analyzing data from the
Copeland Scroll
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. The
Comfort Alert module is also compatible with all Emerson branded thermostats of the
1F9X and 1F8X families that offer diagnostic "L" terminal connection. For better
protection, the 1F9X/1F8X "CA" model thermostats will flash Comfort Alert codes on
their display and allow active protection that turns off the compressor if a potentially
harmful fault code is detected.
Comfort Alert is designed for systems with Copeland Scroll
internal overload protection. The software in the Comfort Alert module has been
optimized for different types of air conditioning applications: cooling only, heat pump,
two-stage compressors, and commercial three-phase.
This user manual is for single-phase applications. For three-phase applications
refer to the Comfort Alert Commercial user manual (2005ECT-191).
NOTE:
This module does not provide safety
protection! Comfort Alert is a monitoring device and
cannot control or shut down other devices.
LED Description (Figure 1)
POWER LED (Green): indicates voltage is present 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 de-
scriptions of specific ALERT Flash Codes are shown in
two tables on pages 10, 11, and 12 of this manual.
TRIP LED (Red): indicates there is a demand signal from
the thermostat but no current to the compressor is
detected by Comfort Alert. The TRIP LED typically
indicates the compressor protector is open or may
indicate missing supply power to the compressor.
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compressor and the thermostat demand, Comfort Alert can
1
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compressors that have
Figure 1
543-0010-00
943-0010-00
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