POWER UP
1. Double check wiring, be sure that there are no stray wires or
wire strands at the connections.
2. It is not necessary to connect the remote system (COMM) cable
at this time.
3. Connect power to the control transformer and system. The
display will show all segments for about 5 seconds.
4. Press the Fan key. The fan should come on. Press the Fan key
again. The fan should go off.
5. Set the Mode to "HEAT". Use the up arrow key to raise the
desired temperature setting 1 degree above the current
temperature. Ensure that Stage 1 heat comes on. After a few
minutes, raise the desired temperature 3 degrees over the current
temperature. Stage 2 heat should come on. Set the mode to
"OFF". Ensure that the heat unit goes off.
5. Set the Mode to "COOL". Use the up arrow key to raise the
desired temperature setting 1 degree above the current
temperature. Ensure that Stage 1 cool comes on. After a few
minutes, raise the desired temperature 3 degrees over the current
temperature. Stage 2 cool should come on. Set the mode to
"OFF". Ensure that the cooling unit goes off.
Note: As a convenience to the installer, the compressor start up
protection delay can be canceled. To cancel the delay, press the Prog
key 3 times, then press the Fan key 2 times.
If the thermostat or system do not perform as stated above, recheck
all wiring - See Troubleshooting Tips.
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