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Old 01-18-2010, 08:59 AM   #1
Join Date: Dec 2009
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Help with wiring thermostat

I have a Armstrong furnace.
It has W1 W2 Y G R
There is also 2 additional terminals for the compressor.

My thermostat needs a C
Common for the voltage.

What are my options for supplying this?

I am going to try to post the wiring diagram for it.

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Old 01-18-2010, 05:52 PM   #2
An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 24,862

Help with wiring thermostat

Find transformer and wire to its common.

What are the 2 additional terminals for the compressor labeled.

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