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circulated by the indoor blower and verify that
it is cooler than ambient temperature. Listen
for any unusual noises. If present, locate and
determine the source of the noise and correct
as necessary.
Heating — If provided with heating equipment,
lower the thermostat setpoint temperature to the
lowest obtainable setting and set the thermostat
function switch to HEATING. The indoor blower
and outdoor unit should stop running. Increase
the setpoint temperature of the thermostat to
the maximum setting. Verify that the heating
equipment has been energized (i.e., fossil fuel
burner operating, etc.) and that the indoor blower
energizes after a short period of time. Feel the
air being circulated by the indoor blower and
verify that it is warmer than ambient temperature.
Listen for any unusual noises. If present, locate
and determine the source of the noise and cor-
rect as necessary.
NOTE: Other sources for heating (i.e.: electric
furnace, fossil fuel furnace, air handler with
electric heat options, etc.) that interface with
the unit should be functionally checked to verify
system operation and compatibility. Refer to the
installation instructions for this equipment and
perform a functional checkout in accordance
with the manufacturer’s instructions.
Figure 2. Comfort Alert
TM
Diagnostics Module
POWER
ALERT
TRIP
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