Honeywell T7350 User Manual page 22

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
SUBBASE
1 2
1
2
3
4
Fig. 16. Typical hookup of T7350D in three-stage heat and three-stage cool conventional system with one transformer.
SUBBASE
1 2
1
2
3
4
Fig. 17. Typical hookup of T7350D in two-stage heat and four-stage cool conventional system.
63-2605—2
OUTDOOR
AIR
T7770 REMOTE SENSOR
SENSOR
9 8 7 6 5 4 3 2 1
T5 T6 T7 T4 T3 OS
HS HC HP
HUMIDITY
SENSOR
L2
L1
(HOT)
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD.
HEAT/COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY-INSTALLED JUMPER.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
OUTDOOR
AIR
T7770 REMOTE SENSOR
SENSOR
9 8 7 6 5 4 3 2 1
T5 T6 T7 T4 T3 OS
HS HC HP
HUMIDITY
SENSOR
L2
L1
(HOT)
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD.
HEAT/COOL SYSTEMS WITH ONE TRANSFORMER REQUIRE THE FACTORY-INSTALLED JUMPER.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
DISCHARGE
HEAT
AIR
RELAY 3
SENSOR
OS AS AS W3/Y4 Y3
M M X RH RC AUX
3
HEAT
MOTION
RELAY 1
SENSOR
4
ECONOMIZER
DISCHARGE
AIR COMPRESSOR
SENSOR CONTACTOR 4
OS AS AS W3/Y4 Y3
M M X RH RC AUX
3
HEAT
MOTION
RELAY 1
SENSOR
4
ECONOMIZER
22
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 2
W2 Y2
W1 Y1 G
COMPRESSOR
CONTACTOR 3
FAN
RELAY
COMPRESSOR
CONTACTOR 1
M19766A
HEAT
RELAY 2
COMPRESSOR
CONTACTOR 2
W2 Y2
W1 Y1 G
COMPRESSOR
CONTACTOR 3
FAN
RELAY
COMPRESSOR
CONTACTOR 1
M19768A