Install Instructions

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
9 62-0195—06
Fig. 9. Typical hookup of T7350B in three-stage heat and two-stage cool conventional system
with two transformers.
Fig. 10. Typical hookup of T7350B in three-stage heat and two-stage cool heat pump system
with two transformers.
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
1
M32141
2
2
RCX
SUBBASE
W1 GY1
W2 Y2
AUX
RH
DISCHARGE
AIR
SENSOR
OUTDOOR
AIR
SENSOR
OSOS ASAS
1
L1
(HOT)
L2
1
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
COMPRESSOR
CONTACTOR 2
HEATING
TRANSFORMER
COOLING
TRANSFORMER
HEAT
RELAY 1
FAN
RELAY
HEAT
RELAY 2
HEAT
RELAY 3
T5 T6 T7 T4 T3
TR23 REMOTE SENSOR
9
8
76
5
4
3
21
10
11
12
GND SENSOR SET PT
LED
BYPASS
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.
1
M32142
2
2
3
RCX O/B GY1
W2 Y2
AUX
RH
DISCHARGE
AIR
SENSOR
OUTDOOR
AIR
SENSOR
OSOS ASAS
1
3
L1
(HOT)
L2
1
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
COMPRESSOR
CONTACTOR 2
HEATING
TRANSFORMER
COOLING
TRANSFORMER
CHANGE
OVER
FAN
RELAY
ECONOMIZER
AUX HEAT
STAGE 1
SUBBASE
T5 T6 T7 T4 T3
TR23 REMOTE SENSOR
9
8
76
5
4
3
21
10
11
12
GND SENSOR SET PT
LED
BYPASS