Honeywell Prestige M28798 Guide D'installation page 6

Prestige TM Installation Guide
System-specific wiring guides
Heat pump systems
1H/1C Heat Pump [8]
C 24VAC common
R Power [1]
Rc [R+Rc joined by jumper]
O/B Changeover valve [7]
Compressor
Y
G Fan relay**
2H/1C Heat Pump [9]
24VAC common
C
R Power [1]
Rc [R+Rc+Rh joined by jumper]
O/B Changeover valve [7]
Aux Auxiliary heat relay
Y Compressor
G Fan relay**
L Relay [12]
** [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.
69-2057EFS—03
contactor**
contactor**
2H/2C Heat Pump [10]
24VAC common
C
R Power [1]
Rc [R+Rc joined by jumper]
O/B Changeover valve [7]
Y Compressor contactor (stage
Compressor contactor (stage 2)
Y2
G Fan relay**
3H/2C Heat Pump [11]
C 24VAC common
R Power [1]
Rc [R+Rc joined by jumper]
O/B Changeover valve [7]
Auxiliary heat relay
Aux
Y Compressor contactor (stage
Y2 Compressor contactor (stage 2)
G Fan relay**
L Relay [12]
6
See [notes] below.
1)**
1)**