Honeywell T7350 User Manual page 29

TR23-H REMOTE SENSOR
1 2 4
3 5 6
SUBBASE
T5
L2
1 2
L1
(HOT)
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2
ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD.
3
HEAT/COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY-INSTALLED JUMPER.
4
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
5 WHEN USING THE TR23-H FOR HUMIDITY SENSING THERE IS NO NEED TO WIRE HC TERMINAL
BECAUSE THE T3 TERMINAL IS INTERNALLY TIED TO HC, WHICH IS ALSO TIED TO TERMINAL 1
COMMON AT THE SENSOR.
Fig. 21. Typical hookup of T7350D in two-stage heat and four-stage cool conventional system.
TR23-H REMOTE SENSOR
1 2 3 4
SUBBASE
®
L W
ON ORKS
BUS
®
L W
ON ORKS
BUS
L2
1 2
L1
(HOT)
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD.
3
HEAT/COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY-INSTALLED JUMPER.
4
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
5 WHEN USING THE TR23-H FOR HUMIDITY SENSING THERE IS NO NEED TO WIRE HC TERMINAL
BECAUSE THE T3 TERMINAL IS INTERNALLY TIED TO HC, WHICH IS ALSO TIED TO TERMINAL 1
COMMON AT THE SENSOR
Fig. 22. Typical hookup of T7350H1009 in three-stage heat and three-stage cool conventional system with one
OUTDOOR
AIR
SENSOR
10 11 12
7 8 9
DISCHARGE
AIR
SENSOR
T6 T7 T4 T3 OS OS
HS HC HP M M
5
HUMIDITY
MOTION
SENSOR
SENSOR
OUTDOOR
AIR
SENSOR
5 6 7 8 9 10 11 12
T5 T6 T7 T4 T3
OS OS
EB EB HS HC HP M
5
HUMIDITY
MOTION
SENSOR
SENSOR
transformer.
T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
HEAT
RELAY 2
COMPRESSOR COMPRESSOR
CONTACTOR 4 CONTACTOR 2
AS AS W3/Y4 Y3 W2
X RH RC AUX W1 Y1
3 FAN
HEAT
RELAY
RELAY 1
COMPRESSOR
CONTACTOR 1
4
ECONOMIZER
4
ECONOMIZER
DISCHARGE
HEAT
HEAT
AIR
RELAY 3
RELAY 2
SENSOR
AS AS AUX W3/Y4 Y3 W2
M X RH RC AUX W1 Y1
3
HEAT
RELAY 1
COMPRESSOR
CONTACTOR 1
29
Y2
G
COMPRESSOR
CONTACTOR 3
M29254
COMPRESSOR
CONTACTOR 2
Y2
G
COMPRESSOR
CONTACTOR 3
FAN
RELAY
M32145
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