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View Full Version : Honeywell rth6400 thermostat installation?


westpacific
Sep 6, 2010, 04:13 PM
I have only 2 wires low voltage to my thermostat i.e. black and white. The manual does not appear to cover this situation hence could you advise which connections to use?

Antoninus
Sep 6, 2010, 04:15 PM
How do you Johnsnon

steve_reno
Oct 1, 2011, 08:53 AM
I have the same problem any ideas