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    keltickat's Avatar
    keltickat Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 8, 2007, 03:54 PM
    Rheem heat pump thermostat "EM" setting
    I have a Rheem model no. RHQA 1000B heat pump, but previous homeowner left no manual for it. I am puzzled at the "EM" setting on the thermostat. I would also like to download/obtain an operation manual for this unit.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 8, 2007, 05:23 PM
    EM usually means emergency heat. All it does is bring on the strait electric heat in the furnace. It is more expensive to heat that way than it is to use the heat pump.
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