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    dkcustis's Avatar
    dkcustis Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jul 14, 2008, 02:41 PM
    Carrier 10 SEER split system heat pump, Model 38YCC
    I have a 7 year old Carrier 10 SEER split System Heat Pump, Model 38YCC. I asked the local Carrier Installer whether it is a single stage or multi-stage unit, so I can buy a new programmable thermostat appropriate for my unit.
    The Carrier installer rep I spoke with said it's a multi-stage unit, but I question whether the unit is multi-stage.
    The unit has only one compressor. I don't how many strip heaters are in the air handler.
    Can anyone help me? Thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 14, 2008, 02:45 PM
    Yep just buy a 2 stage thermostat. The reason is the heat pump is one stage and the electric heaters in the inside air handler is the second stage.
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