Wiring Diagrams (Fig. 17-25) - Honeywell T7350 User Manual

WIRING DIAGRAMS (FIG. 17-25)

SUBBASE
L2
1
L1
(HOT)
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
2
Fig. 17. Typical hookup of T7350A in two-stage heat and one-stage cool conventional system
TR23 REMOTE SENSOR
1 2 3
SUBBASE
L2
1
L1
(HOT)
1
2
3
Fig. 18. Typical hookup of T7350B in two-stage heat and two-stage cool conventional system
HEATING
TRANSFORMER
with two transformers.
OUTDOOR
AIR
SENSOR
4 5 6 7 8 9 10 11 12
T5 T6 T7 T4 T3
OS
HEATING
TRANSFORMER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
with two transformers.
T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
X RH RC AUX W1 Y1
2
HEAT
RELAY 1
COMPRESSOR
HEAT
CONTACTOR 1
RELAY 2
DISCHARGE
AIR HEAT
SENSOR RELAY 2
OS AS AS
X RH RC AUX W1
2
HEAT
RELAY 1
COMPRESSOR
CONTACTOR 1
3
ECONOMIZER
27
G
FAN
RELAY
L2
1
L1
(HOT)
COOLING
TRANSFORMER
M19764A
COMPRESSOR
CONTACTOR 2
W2 Y2
Y1 G
FAN
RELAY
L2
1
L1
(HOT)
COOLING
TRANSFORMER
M32140
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