VisionPROTM TH8000 Series
569-2693—01
ENGLISH

1H/1C Heat Pump (no auxiliary heat)

Rc Power [1]
R [R+Rc joined by jumper]
O/B Changeover valve [5]
Y Compressor relay
G Fanrelay
C 24VACcommon[3]
S1 Optionaloutdoor/remotesensor
S2 Optionaloutdoor/remotesensor

2H/1C Heat Pump (with auxiliary heat)

L Equipmentmonitor[6,7]
Aux/E Auxiliary/Emergencyheatrelay(Heat2)
Rc Power [1]
R [R+Rc joined by jumper]
O/B Changeover valve [5]
Y Compressor relay
G Fanrelay
C 24VACcommon[3]
S1 Optionaloutdoor/remotesensor
S2 Optionaloutdoor/remotesensor

2H/2C Heat Pump (no auxiliary heat)

Y2 Compressor 2 relay
Rc Power [1]
R [R+Rc joined by jumper]
O/B Changeover valve [5]
Y Compressor 1 relay
G Fanrelay
C 24VACcommon[3]
S1 Optionaloutdoor/remotesensor
S2 Optionaloutdoor/remotesensor

3H/2C Heat Pump (with auxiliary heat)

Y2 Compressor 2 relay
L Equipmentmonitor[6,7]
Aux/E Auxiliary/Emergencyheatrelay(Heat2)
Rc Power [1]
R [R+Rc joined by jumper]
O/B Changeover valve [5]
Y Compressor 1 relay
G Fanrelay
C 24VACcommon[3]
S1 Optionaloutdoor/remotesensor
S2 Optionaloutdoor/remotesensor
Shaded areas below apply only to TH8320/TH8321.
Wiring guide—heat pump systems
Wiring

See [notes] below

[1] Power supply. Provide disconnect means and overload protection as required.
[3] Optional24VACcommonconnection.
[5] O/B set to control as either O or B in installer setup.
[6] If Lterminalisused,24VACcommon(terminalC)must be connected.
[7] Heatpumpreset(poweredcontinuouslywhenthermostatissettoEm.Heat;systemmonitor
whensettoHeat,��Cool,orOff).