Honeywell T7350 User Manual page 23

T7770 REMOTE SENSOR
9 8 7 6 5 4
SUBBASE
T5 T6 T7
HS
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.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
4
Fig. 18. Typical hookup of T7350M for system with two independent heat stages (one modulating),
two independent cool stages (one modulating), and one transformer.
T7770 REMOTE SENSOR
9 8 7 6 5 4
SUBBASE
T5 T6 T7
HS
HUMIDITY
SENSOR
L2
1
L1
(HOT)
HEATING
TRANSFORMER
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS, REMOVE THE FACTORY-INSTALLED JUMPER.
2
3 USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
Fig. 19. Typical hookup of T7350M for system with two independent heat stages (one modulating),
two independent cool stages (one modulating), and two transformers.
OUTDOOR
AIR
SENSOR
DISCHARGE
3 2 1
AIR
SENSOR
T4 T3 OS OS AS AS
HC HP M M X RH
MOTION
SENSOR
OUTDOOR
AIR
SENSOR
DISCHARGE
3 2 1
AIR
SENSOR
T4 T3 OS OS AS AS
HC HP M M X RH
2
MOTION
SENSOR
23
T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
MODULATING
COOL
–
(4-20 mA)
+
MODULATING R
HEAT
–
(4-20 mA) X
+
MX MH MC
RC AUX W1 Y1 G
FAN
3 HEAT
RELAY
RELAY 1
COMPRESSOR
CONTACTOR 1
4
ECONOMIZER
MODULATING
COOL
–
(4-20 mA)
+
MODULATING R
HEAT
–
(4-20 mA) X
+
MX MH MC
RC AUX W1 Y1 G
FAN
HEAT
RELAY
RELAY 1
COMPRESSOR
CONTACTOR 1
3
ECONOMIZER
R
X
M19769A
R
X
L2
1
L1
(HOT)
COOLING
TRANSFORMER
M22006
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