ECsZ3Dream
Oct 26, 2011, 07:46 PM
My Trane XT500C thermostat has bitten the dust, and I'm replacing it with a Honeywell VisionPRO 8000 (model #TH8320U1008), the model Trane said is the proper replacement for the XT500C. The current wiring to the XT500C is as follows:
B - Blue
H - {no connection}
H - {no connection}
OT - {no connection}
OT - {no connection}
F - {no connection}
R - Red
W - White
Y1 - Green
Y2 - Yellow
X2 - White
O - Red
G - Green
The thermostat is wired to a Trane air handler (TWE049E13FB0) w/a heat pump (BAYHTR1410). The wires are in two separate conduits, five wires in one (Red, White, Green, Yellow, & Blue), three in the other (Red, White, Green).
The Honeywell thermostat connection points are labeled:
Y2
L
E
AUX
S1
S2
RC
R (jumper between R&RC)
O/B
Y
G
C
I cannot find definitive direction on which wires from the Air Handler are performing which function so that I can make the proper connections to the new thermostat. Any help from someone who has made this change before would be greatly appreciated.
B - Blue
H - {no connection}
H - {no connection}
OT - {no connection}
OT - {no connection}
F - {no connection}
R - Red
W - White
Y1 - Green
Y2 - Yellow
X2 - White
O - Red
G - Green
The thermostat is wired to a Trane air handler (TWE049E13FB0) w/a heat pump (BAYHTR1410). The wires are in two separate conduits, five wires in one (Red, White, Green, Yellow, & Blue), three in the other (Red, White, Green).
The Honeywell thermostat connection points are labeled:
Y2
L
E
AUX
S1
S2
RC
R (jumper between R&RC)
O/B
Y
G
C
I cannot find definitive direction on which wires from the Air Handler are performing which function so that I can make the proper connections to the new thermostat. Any help from someone who has made this change before would be greatly appreciated.