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Old 10-14-2009, 08:42 AM   #1
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Two wire thermostat (heat only)


I'm rewiring my heating zones with a Taco zone controller. The zone controller connections are not labeled R or W (TT). The thermostat has R & W. I assume it doesn't matter since it's 24vac. (i.e W & R are interchangable)

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Old 10-14-2009, 12:18 PM   #2
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Two wire thermostat (heat only)


Yes they are.

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Old 10-14-2009, 12:45 PM   #3
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Two wire thermostat (heat only)


Thanks a lot beenthere!!! I'm just finishing up putting my system back together after replumbing and rezoniong (you helped me redesign it a few months ago). Filled the boiler yesterday and lit off 3 zones last night. Still need to run the t-stat wires for the 2 new zones. Couldn't have done it without you.
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Old 10-14-2009, 12:50 PM   #4
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Two wire thermostat (heat only)


Your welcome.
Glad to hear everything is going well.
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