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Depending on your specific equipment setup, you may have a variable speed condenser fan, variable speed compressor, or both. With a variable speed compressor and condenser, the system would ideally maintain stable superheat and suction pressure (effectively controlled by the Siemens superheat controller) and would maintain a stable temperature differential ...


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Former HVAC controls guy here - so I understand this stuff a little bit. Disclaimer: It has been about 10 years since I worked on this stuff so my memory is a bit rusty. The Siemens module is controlling the amount of evaporator superheat by means of modulating the TXV (thermostatic expasnion valve). So the mechanic is partially correct, it does make the ...


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a heat pump has a cop or coefficient of performance. Your 48000 BTU Heat pump delivers that much heating nominally with mild temperatures outside.. To see how much power it uses you divide by COP and then convert to kWh. In my area natural gas is about half the cost of baseboard heating, and heat pump heat is half the cost of gas heat. In the winter it is ...



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