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Thread: controlling two Heatpumps
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06-10-2011, 12:56 AM #1
Re: controlling two Heatpumps
Install a latching relay, when both stats are open break the latch, only when both stats are closed make the latch
T1 on and T2 on = to energize latch "On"
T1 off and T2 on = On
T1 off and T2 Off = Off.
Or even buy a smart relay (baby PLC) and do your timer in here as well