Typical Hookup Diagrams - Honeywell T7350 Installation Instructions Manual
Commercial programmable thermostat for single- or multi-stage conventional/heat pump systems
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Also See for T7350:
- System engineering (44 pages) ,
- Product data (40 pages) ,
- User manual (40 pages)
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T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
T7770 REMOTE SENSOR
9
SUBBASE
L2
1
L1
(HOT)
HEATING
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
3
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
Fig. 8. Typical hookup of T7350B in two-stage heat and two-stage cool heat pump system
T7770 REMOTE SENSOR
9
SUBBASE
L2
1
L1
(HOT)
HEATING
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
Fig. 9. Typical hookup of T7350B in three-stage heat and two-stage cool conventional system
62-0195—04
OUTDOOR
AIR
SENSOR
8
7
6
5
4
3
2
1
T5
T6
T7
T4
T3
OS
OUTDOOR
AIR
SENSOR
8
7
6
5
4
3
2
1
T5
T6
T7
T4
T3
OS
DISCHARGE
AIR
SENSOR
OS
AS
AS
X
RH
RC
AUX
2
3
ECONOMIZER
with two transformers.
DISCHARGE
AIR
SENSOR
OS
AS
AS
2
X
RH
RC
AUX
HEAT
RELAY 3
with two transformers.
10
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 2
W2
Y2
W1
Y1
G
FAN
HEAT
RELAY
RELAY 1
COMPRESSOR
CONTACTOR 1
COOLING
TRANSFORMER
HEAT
RELAY 2
COMPRESSOR
CONTACTOR 2
W2
Y2
W1
Y1
G
FAN
HEAT
RELAY
RELAY 1
COMPRESSOR
CONTACTOR 1
COOLING
TRANSFORMER
L2
1
L1
(HOT)
M19765A
L2
1
L1
(HOT)
M22007
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