Honeywell VISIONPRO TB8220U - Heat Pump System Wiring Diagrams; Single-Stage Heat Pump Wiring (No Aux Heat); Multistage Heat Pump Wiring (No Aux Heat); Single-Stage Heat Pump Wiring (With Aux Heat)

TB8220U COMMERCIAL VISIONPRO™ PROGRAMMABLE THERMOSTAT
62-3070—07 6
Heat Pump System Wiring
Fig. 14. Typical hookup of single-stage heat pump
with no auxiliary heat (1H/1C).
Fig. 15. Typical hookup of multistage heat pump with
no auxiliary heat (2H/2C).
Fig. 16. Typical hookup of single-stage heat pump
with auxiliary heat (2H/1C).
Fig. 17. Typical hookup of multistage heat pump
with auxiliary heat (3H/2C).
COMPRESSOR CONTACTOR
M22788A
CHANGEOVER VALVE
FAN RELAY
1
2
3
4
5
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
FACTORY INSTALLED JUMPER.
WHEN USING BATTERIES, THE 24V COMMON CONNECTION
IS OPTIONAL.
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"
IN THE INSTALLER SETUP.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.
AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
3
Y2
L
A
W1
S1
S2
2
RC
R
O/B
Y
G
C
4
L1
(HOT)
L2
1
24 VAC
5
ECONOMIZER
COMPRESSOR 1
COMPRESSOR 2
M22789A
CHANGEOVER VALVE
FAN RELAY
1
2
3
4
5
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
FACTORY INSTALLED JUMPER.
WHEN USING BATTERIES, THE 24V COMMON CONNECTION
IS OPTIONAL.
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"
IN THE INSTALLER SETUP.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.
AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
3
Y2
L
A
W1
S1
S2
2
RC
R
O/B
Y
G
C
4
L1
(HOT)
L2
1
24 VAC
5
ECONOMIZER
COMPRESSOR CONTACTOR
ECONOMIZER
M22790A
CHANGEOVER VALVE
FAN RELAY
1
2
3
4
5
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
FACTORY INSTALLED JUMPER.
WHEN USING BATTERIES, THE 24V COMMON CONNECTION
IS OPTIONAL.
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"
IN THE INSTALLER SETUP.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.
AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
3
Y2
L
A
W1
S1
S2
2
RC
R
O/B
Y
G
C
4
L1
(HOT)
L2
1
24 VAC
5
AUXILIARY HEAT RELAY
COMPRESSOR 1
COMPRESSOR 2
M22791A
CHANGEOVER VALVE
FAN RELAY
1
2
3
4
5
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
FACTORY INSTALLED JUMPER.
WHEN USING BATTERIES, THE 24V COMMON CONNECTION
IS OPTIONAL.
"O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B"
IN THE INSTALLER SETUP.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR.
AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
OUTDOOR/INDOOR
TEMPERATURE
SENSOR
3
Y2
L
A
W1
S1
S2
2
RC
R
O/B
Y
G
C
4
L1
(HOT)
L2
1
24 VAC
5
ECONOMIZER
AUXILIARY HEAT RELAY