Replacing an unmarked 2 wire round thermostat with digital

coshap Posts: 1, Reputation: 1

New Member

Oct 28, 2008, 05:41 AM

Replacing an unmarked 2 wire round thermostat with digital

Replacing an unmarked 2 wire round thermostat with digital thermostat Honeywell RTH6300B. I don't know where to connect the wires. Heat only

hvac1000 Posts: 14,540, Reputation: 435

Heating & Air Conditioning Expert

Oct 28, 2008, 10:42 AM

R and W are the heat wires.

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