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hvac thm5320r transformer
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  1. HVAC
    Last year I had a THM5320R (Wireless Equipment Interface Module For Wireless FocusPRO Thermostats) installed at my house to control one of the 3 zones of a Honeywell EMM-3 MiniZone board. The other two zones are controlled by 2 other thermostats connected by wire. The installer powered the...
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