PDA

View Full Version : How to install prog. Thermostat

reform
Nov 15, 2010, 06:29 PM
New prog. Thermo... has 2 black wires... existing has 4 2 black 2 red. How to connect
ballengerb1
Nov 15, 2010, 06:35 PM
What brand and model is your new stat and where do you live, also type of furnace or boiler