Honeywell T7350 Installation Instructions Manual page 11

TR23-H REMOTE SENSOR
1 2 4
3 5 6 7 8
SUBBASE
T5 T6
EB EB
LONWORKS
®
BUS
LONWORKS
®
BUS
L2
1
L1
(HOT)
HEATING
TRANSFORMER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
2
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
3
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
4
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. 13. Typical hookup of T7350H1017 for system with two independent heat stages (one modulating),
two independent cool stages (one modulating), and two transformers.
TR23-H REMOTE SENSOR
1 2 4
3
SUBBASE
®
L W
ON ORKS
BUS
®
L W
ON ORKS
BUS
L2
1 2
L1
(HOT)
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
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. 14. Typical hookup of T7350H1009 in three-stage heat and three-stage cool conventional system
OUTDOOR
AIR
SENSOR
10 11 12
9
DISCHARGE
AIR
SENSOR
T7 T4 T3
OS OS AS
HS HC HP M M X
4
HUMIDITY
MOTION
SENSOR
SENSOR
OUTDOOR
AIR
SENSOR
10 11 12
5 6 7 8 9
T5 T6 T7 T4 T3
OS
HS HC HP
EB EB M
5
HUMIDITY
MOTION
SENSOR
SENSOR
with one transformer.
T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
MODULATING R
HEAT
–
(4-20 mA) X
+
AS MX MH MC AUX
RH RC AUX W1 Y1 G
2
FAN
HEAT
RELAY
RELAY 1
COMPRESSOR
CONTACTOR 1
3
ECONOMIZER
4
ECONOMIZER
DISCHARGE
HEAT
AIR
RELAY 3
SENSOR
OS AS AS AUX W3/Y4 Y3
M X RH RC AUX W1
3
HEAT
RELAY 1
COMPRESSOR
CONTACTOR 1
11
MODULATING R
COOL
–
(4-20 mA)
+ X
COOLING
TRANSFORMER
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 2
W2 Y2
Y1 G
COMPRESSOR
CONTACTOR 3
FAN
RELAY
L2
1
L1
(HOT)
M32144
M32145
62-0195—08