Trane XR203 - Stage Heat Pump with Non Variable Speed Blower; Or 2 Stage Heat;Cool Package

Pub. No. 18HD50D1-1A-EN 12/2018 Part No. 37-7768003 9
Trane XR203 Programmable Thermostat
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Heat Pump Package Unit with Non Variable Speed Blower
Indoor UnitThermostat
Rc
Rh
O/B
Y
G
W/E
C
L
Y2
W2
R
Y1
G
W1
B
Y2
W2
W2/X2
O/B
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
1 or 2 Stage Heat/Cool Package
Indoor UnitThermostat
Rc
Rh
O/B
Y
G
W/E
C
L
Y2
W2
R
Y1
G
W1
B
W2
W2
Y2