I tried to glean the answer from previous posts. I know it has been asked and answered before but I can't seem to find an answer I can understand!.
I had a 16 SEER - York hp installed in the spring. And I didn't pay much attention to the part when they discussed when the system would call for the 80% York variable speed NG furnace.
I called York and got their local representative to call me back (after about two weeks!) I believe when the system was installed they set the outside temp at 20 degrees before NG furnace would be called. The York representative said that as long as the inside set temperature (71 degrees) could be maintained the setting was good. In other words if it couldn't keep it at 71 degrees the balance temp should be raised. The hp is running constantly to maintain 71 degrees in the low 30's and its not gotten lower then mid 20's so far this winter. However the 71 has been held.
Questions: How do I determine the correct outside temperature to have the contractor set the point to switch from the HP to gas? With my experiences with this contractor I would rather tell him than he tell me! Also is the temperature measured at the hp, I don't see any kind of external device?
Finally, York claims for this hp to be the quietest on the market. It is noisy as he*l. Especiallly at start-up. Almost sound 'bearing" like but the noise changes. I had the installing contractor come out (biggest in my city) and they put some strips on it to help with vibration but this sounds more motor like. The tech sounded like this was a known problem? Since the unit is by our bedroom this is not ideal!
Your help is greatly appreciated.