hvac
I received a quote for a two-stage heat pump (model HCH636GKA). I have the following questions:
I can't find enough information about this particular model aside from the aforementioned spec-sheet which I linked to.
Your original wiring looked like this, where the top circles represent the thermostat terminals and the bottom the furnace.
To properly pull off the "G wire trick", you have to locate the transformer in the furnace. You then have to determine which leg feeds R, and which does not. The leg that does not feed R, will be where you connect your new C wire.
Once you have all that hooked up, then you'll install a jumper between the Y and G terminals in the furnace.
Once all that is completed, you'll have to make sure the motor is spinning at the correct speed when in cooling mode. If it's not, you'll end up with inefficient cooling. Which can cause poor performance, and/or damage to the system.
Best Answer
A heat pump is an air conditioner that has valves that switch the flow of the Freon so in the winter the condensing could is the inside making heat inside and cool outside (trying to make a simple explanation). So if the compressor is 2 stage it can run at 2 different levels, depending on brand the compressor doesn’t know if it is heating or cooling the home, except for the defrost cycle. So if it is 2 stage it should be able to do it in heating and cooling, how effective it will be depends on the air handler and if it is multi speed.