Question about Heating & Cooling
Can you change a Trane model number 3AATBOB1A1 thermostat out in replace it with a Honeywell RTH6300B thermostat?
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Posted on Jan 02, 2017
4-wire typical wiring of a thermostat is: Y (Yellow) G (Green) W (white) and R (red). Inspect the thermostat to see if it has a jumper from R1 to R2. If not, put your red wire on R2. On a 5-wire thermostat you may have a blue wire. This will go to the common terminal (usually C but sometimes B) check the inline fuse in the air handler to see if it has blown. Replace it only after wiring the thermostat correctly.
Posted on Dec 03, 2007
SOURCE: need wiring help for replacing
I am not sure of what help you need on it but here are the most common wiring on a stat
RC=Hot (24v for Cooling)
RH= Hot (24v for Heat)
O= Reversing Valve (Heat Pumps Only)
Hope this helps
Posted on May 11, 2008
The smell is usually dust on the wires for electric resistance heat.The thermostat shouldnt have anything to do with it.
Posted on Nov 20, 2008
SOURCE: Wiring Trane/Honeywell TH8320U
use the outside designations for heat pump, and inside for standard, I would assume a heat pump since you have more than five wires attached to it now. Use the colors of the wire to match to the designations, use tan for y2, black for w2 rc and rh should already have a factory jumper. I would have to trace out the "U" and see where it terminates, I have not seen a bare wire on a stat in 27 years of doing this. before powering, verify the tan and black at the indoor unit circuit board and see if they are landed on the terminals designated at the stat. hope this helps
Posted on Jul 27, 2009
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