Honeywell Home T10 Product Data page 22

1 REMOVE JUMPER SINCE THE BOILER HAS A SPEARATE TRANSFORMER THAN THE HEAT PUMP.
2 THE CHANGEOVER VALVE WILL BE LABELED O IF ENERGIZED IN COOL OR B IF ENERGIZED IN HEAT.
3 IF USING A HOT WATER RELAY PANEL, THE WIRES SHOWN GOING TO THE BOILDER WOULD INSTEAD WIRE TO R
AND W ON ONE OF THE ZONES OF THE PANEL.
NOTE: SEE FOLLOWING PAGES FOR ADDITIONAL THERMOSTAT WIRING GUIDELINES FOR OTHER SYSTEM TYPES,
SENSOR WIRING, IAQ CONTROL, AND OTHER DRY CONTACT WIRING OPTIONS.
1 REMOVE JUMPER SINCE THE VALVE IS POWERED BY A SPEARATE TRANSFORMER THAN THE HEAT PUMP.
2 THE CHANGEOVER VALVE WILL BE LABELED O IF ENERGIZED IN COOL OR B IF ENERGIZED IN HEAT.
3 THE WIRES THAT POWER THE VALVE ARE SHOWNON THE LEFT SIDE OF THE VALVE. THE END-SWITCH WIRES FROM
THE VALVES GO TO THE BOILER.
NOTE: SEE FOLLOWING PAGES FOR ADDITIONAL THERMOSTAT WIRING GUIDELINES FOR OTHER SYSTEM TYPES,
SENSOR WIRING, IAQ CONTROL, AND OTHER DRY CONTACT WIRING OPTIONS.
Fig. 38. Typical wiring of a heat pump system with a zone valve for backup heat
33-00462—05
THM04R3000
R
C
L
O/B
W1
W2
W3
Y1
Y2
G
RH
RC
R
C
Fig. 37. Typical wiring of a heat pump system with boiler backup
THM04R3000
R
C
L
O/B
W1
W2
W3
Y1
Y2
G
RH
RC
R
C
1 1
3
BOILER
2
AUX1
AUX2
HEAT PUMP / AIR-HANDLER
1
1 1 ZONE VALVE
3
AUX1
AUX2 2
HEAT PUMP / AIR-HANDLER
1
18
L (SYSTEM FAULT MONITOR)
O (CHANGEOVER VALVE)
Y1 (COMPRESSOR STAGE 1)
Y2 (COMPRESSOR STAGE 2)
G (FAN)
R (24 VAC HOT)
C (24 VAC COMMON)
M39207
BOILER
24 120
VAC VAC
TRANSFORMER
L (SYSTEM FAULT MONITOR)
O (CHANGEOVER VALVE)
Y1 (COMPRESSOR STAGE 1)
Y2 (COMPRESSOR STAGE 2)
G (FAN)
R (24 VAC HOT)
C (24 VAC COMMON)
M39208