Honeywell Home T10 Product Data page 15

S A
L/A
S O/B
Y
AUX
W2
Y2 E
G
W
C K
R
U
Rc
U
1 1
C G Y W2 W
1 COMMON REQUIRED.
Fig. 18. 2H/1C gas furnace
S L/A A
S O/B
Y
AUX W2
Y2 E
G W
C K
R
U
U Rc
1
C G R
Y W R
AIR HANDLER OIL FURNACE
1 COMMON REQUIRED FROM COOL TRANSFORMER (AIR HANDLER).
Fig. 19. 2-transformer system; 1H/1C oil furnace
2H/1C GAS FURNACE +
AIR-CONDITIONING.
R/Rc
SWITCH UP
FURNACE
R
M37816
2 TRANSFORMER SYSTEM
1H/1C OIL FURNACE +
AIR-CONDITIONING.
R/Rc SWITCH
DOWN
M37556A
S L/A
S O/B
Y
AUX
Y2 E
G
C
U
U
1
G R
C Y
AIR HANDLER
1 COMMON REQUIRED FROM COOL TRANSFORMER (AIR-HANDLER).
Fig. 20. 2-transformer system; hot water heat with air-
conditioning (or hot water coil)
S
S
Y
Y2
G
1
C
U
U
TH
TR
RESIDEO V8043
ZONE VALVES
1 COMMON REQUIRED.
Fig. 21. Hot water heat with power open zone valve
11
2 TRANSFORMER SYSTEM
HOT WATER HEAT +
A
AIR-CONDITIONING (OR HOT
WATER COIL).
W2
W
K
R
Rc
R/Rc SWITCH
DOWN
W R
BOILER
HOT WATER HEAT WITH
POWER OPEN ZONE VALVE.
L/A A
O/B
AUX
W2
E
W
K
R
Rc
R/Rc SWITCH
UP
R
24 VOLTS
C
TRANSFORMER
R (T)
W (T)
BOILER
M37559B
M37557A
33-00462—05