oregondarrell Posted September 15, 2022 Share Posted September 15, 2022 Our 2004 Monterey has 2 heat pumps and 2 thermostats. The thermostats only control the zone where they are located.Can I use my existing 5 button thermostat on my existing rear heat pump and purchase a CCCII thermostat to use for the new front heat pump since the units operate separately ?If this is possible, I would not need the adapter board I keep hearing about that is on back ordered.Any help appreciated Link to comment Share on other sites More sharing options...
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