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Idiomas disponibles
Idiomas disponibles
System-specific wiring guides
Conventional systems
1H/1C System (1 transformer
C
24VAC common
R
Power [1]
Rc
[R+Rc joined by jumper]
W
Heat relay
Y
Compressor
Fan
relay**
G
Heat-only System [3]
C
24VAC common
R
Power [1]
Rc
[R+Rc joined by jumper]
W
Heat relay
Heat Only System With Fan [4]
C
24VAC common
R
Power [1]
Rc
[R+Rc joined by jumper]
W
Heat relay
G
Fan relay
Cool Only System [5]
C
24VAC common
R
Power [1]
Rc
[R+Rc joined by jumper]
Y
Compressor
G
Fan
relay**
**
[See note on bottom of page 4]
[1]
Power supply. Provide disconnect means and overload protection as required.
[2]
Remove jumper (R to Rc) for systems with two transformers. Common connection must come
from cooling transformer.
[3]
In Installer Setup, set system type to Heat Only, No Fan.
[4]
In Installer Setup, set system type to Conventional with zero cooling stages.
[5]
In Installer Setup, set system type to Conventional with zero heat stages.
[6]
In Installer Setup, set system type to Conventional with 2 heat AND 2 cool stages.
[7]
In Installer Setup, set changeover valve to O or B.
[8]
In Installer Setup, set to Heat Pump with 1 compressor stage and no auxiliary heat stages.
[9]
In Installer Setup, set to Heat Pump with 1 compressor stage and 1 auxiliary heat stage.
[10] In Installer Setup, set to Heat Pump with 2 compressor stages and no auxiliary heat stages.
[11] In Installer Setup, set to Heat Pump with 2 compressor stages and 1 auxiliary heat stage.
[12] "L" terminal sends a continuous output when thermostat is set to Em. Heat, and acts as a
system monitor when in Heat, Cool or Off modes.
)
contactor**
contactor**
1H/1C System (2 transformers)
C
24VAC common
Power (heating) [1]
R
Rc
Power (cooling) [1, 2]
W
Heat relay
Y
Compressor
G
Fan
relay**
2H/2C System (1 transformer) [6]
24VAC common
C
R
Power [1]
Rc
[R+Rc joined by jumper]
W
Heat relay (stage 1)
W2
Heat relay (stage 2)
Y
Compressor contactor (stage
Y2
Compressor contactor (stage 2)
G
Fan
relay**
2H/2C System (2 transformers
C
24VAC common
R
Power (heating) [1]
Rc
Power (cooling) [1, 2]
W
Heat relay (stage 1)
W2
Heat relay (stage 2)
Y
Compressor contactor (stage
Y2
Compressor contactor (stage 2)
G
Fan
relay**
5
See [notes] below.
contactor**
1)**
[6]
)
1)**
69-2057EFS—03
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