Honeywell T7350 User Manual page 30

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
TR23-H REMOTE SENSOR
1 2 4
3 5
SUBBASE
T5
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. 23. Typical hookup of T7350H1017 for system with two independent heat stages (one modulating),
TR23-H REMOTE SENSOR
5
1
Fig. 24. Typical hookup of T7350M for system with two independent heat stages (one modulating),
63-2605—09
OUTDOOR
AIR
SENSOR
10 11 12
6 7 8 9
T6 T7 T4 T3 OS OS
EB HS HC HP M M
4
HUMIDITY
MOTION
SENSOR
SENSOR
two independent cool stages (one modulating), and two transformers.
2 3 4 5 6 7 8 9 10 11 12
SUBBASE
T5 T6 T7 T4 T3
HS HC HP
HUMIDITY
SENSOR
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.
two independent cool stages (one modulating), and one transformer.
MODULATING R
DISCHARGE
HEAT
–
AIR
(4-20 mA)
+ X
SENSOR
AS AS MX MH MC
X RH RC AUX W1 Y1
2
HEAT
RELAY 1
COMPRESSOR
CONTACTOR 1
3
ECONOMIZER
OUTDOOR
AIR
SENSOR
MODULATING
DISCHARGE
–
AIR
+
SENSOR
OS OS AS AS MX MH
M M X RH RC AUX
3
MOTION
SENSOR
4
ECONOMIZER
30
MODULATING R
COOL
–
(4-20 mA)
+ X
AUX
G
FAN
RELAY
COOLING
TRANSFORMER
R
MODULATING
– COOL
+ X
(4-20 mA)
R
HEAT
X
(4-20 mA)
MC
W1 Y1 G
HEAT FAN
RELAY 1 RELAY
COMPRESSOR
CONTACTOR 1
M32364
L2
1
L1
(HOT)
M32144