Honeywell TH8320U Thermostat User Manual


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VisionPRO
TM
TH8000 Series
5
69-2693—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).
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