Question about Heating & Cooling
Posted by Anonymous on
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Posted on Jan 02, 2017
w2 and y2 are used for 2stage applications
w2 = 2 stage heat
y2= 2 stage cool
If your system is a single stage system, look for the y1 and y2 terminals. If the thermostat does not have y1 and y2 then you may have the wrong thermostat. As always, please read the directions carefully. Thanks!
Posted on Jul 03, 2008
We says the outside can pull heat out of 40* air, below this change to emergency heat or it should do this with the thermostat on its own.
Posted on Dec 14, 2009
I can help you on part of your question, the system that you listed above is a 1.5 ton unit, if I had the serial number I could give you the age of the unit. If it is a late 1990 model, then it is probably a 10 SEER unit, maybe a 12 SEER, if it is older than 1994 it will be a 8 to 10 SEER, but due to new federal rules, all new heat pump or air conditioners are at least 13 SEER. If you just replace the outdoor unit and leave the coil indoors, it will be mismatched and cause the unit to be less effeciant, and some problem in adjusting the Freon levels.
Ideal is to change the outdoor unit and indoor coil.
I hope this helps, I am new to this site, so I am still trying to get to the point, and yet give you the details that you need.
Posted on Mar 31, 2010
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