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by RonH
Mon Feb 15, 2016 10:37 am
Forum: Help and Advice
Topic: Wifi thermostat for temp a trol zone system
Replies: 3
Views: 5410

Wifi thermostat for temp a trol zone system

I have a 2 zone Honeywell temp a trol system. I'd like to replace the existing programmable thermostats with wifi stats. The existing stats are Chronotherm iii. Main level has heat/cool and fan selections. Upper level programs separately, but no heat/cool or fan control. Upper stat has 3wires W, R, Y.