None T705 Manual de instrucciones Pagina 6

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6
WIRING DIAGRAMS
O
B
Typical 1H/1C system: 1 transformer
Power supply
Factory-installed jumper. Remove only when installing on 2-transformer systems.
Use either O or B terminals for changeover valve.
Use a small piece of wire (not supplied) to connect W and Y terminals.
Set fan operation switch to electric
Optional 24 VAC common connection when thermostat is used in battery power mode.
RC
RH
Y
C
W
G
C
L2
L1 (HOT)
R
HEAT RELAY
FAN RELAY
COMPRESSOR
RELAY
6
2
1
FAN RELAY
COMPRESSOR
RELAY
6
2
HEAT RELAY
FAN RELAY
6
2
Typical 1H/1C heat pump system
C
L2
L1 (HOT)
R
HEAT CHANGE
OVER VALVE
FAN RELAY
COMPRESSOR
RELAY
6
4
2
5
1
C
L2
L1 (HOT)
R
HEAT RELAY
6
2
1
Typical 1H/1C system: 2 transformer
Typical heat-only system
Typical heat-only system with fan Typical cool-only system
C
L2
L1 (HOT)
R
HEAT RELAY
FAN RELAY
REMOVE JUMPER
COMPRESSOR
RELAY
6
1
C
L2
L1 (HOT)
R
1
2
3
COOL CHANGE
OVER VALVE
C
L2
L1 (HOT)
R
1
C
L2
L1 (HOT)
R
1
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
RC
RH
Y
C
W
G
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