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    pusdlb's Avatar
    pusdlb Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Jan 25, 2009, 03:29 PM
    Honeywell T-stat #RLV430A Wiring
    I want to replace my round manual HW t-stat, with new Prog HW RLV430A. The wires coming out of the old are red,yellow,green,white. The new only has 2 black wires. How do I combine all these? My furnace is propane forced air. Thanks!
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 25, 2009, 03:35 PM
    Wrong thermostat for the application. The old stat was setup for heat and cool and it is a 24 volt unit. The new one is for 120/240 volts and is not designed to be used as a replacement for the one you have now.

    http://customer.honeywell.com/techli...0s/69-1855.pdf
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