Honeywell T7350 - Page 27

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
27 63-2605—5
Fig. 21. Typical hookup of T7350D in two-stage heat and four-stage cool conventional system.
Fig. 22. Typical hookup of T7350H1009 in three-stage heat and three-stage cool conventional system with one
transformer.
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.
1
M19768
A
2
3
2
3
4
RCX
SUBBASE
W1 G
T7770 REMOTE SENSOR
Y1
W3/Y4 Y3 W2
Y2
AUXRH
T5 T6 T7 T4
T3
DISCHARGE
AIR
SENSOR
OUTDOOR
AIR
SENSOR
MOTION
SENSOR
HUMIDITY
SENSOR
M
OSOS ASAS
MHC HP
HS
1
4
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 1
123456789
FAN
RELAY
ECONOMIZER
HEAT
RELAY 2
COMPRESSOR
CONTACTOR 3
COMPRESSOR
CONTACTOR 4
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.
1
M22489
2
3
2
3
4
RC
AUX
X
SUBBASE
W1 G
T7770 REMOTE SENSOR
Y1
W3/Y4 Y3 W2
Y2
AUXRH
T5 T6 T7 T4
T3
DISCHARGE
AIR
SENSOR
OUTDOOR
AIR
SENSOR
MOTION
SENSOR
HUMIDITY
SENSOR
M
OSOS ASAS
MHC HPHSEB
EB
1
4
L1
(HOT)
L2
LONWORKS
®
BUS
COMPRESSOR
CONTACTOR 1
COMPRESSOR
CONTACTOR 2
HEAT
RELAY 1
123456789
FAN
RELAY
ECONOMIZER
HEAT
RELAY 2
COMPRESSOR
CONTACTOR 3
HEAT
RELAY 3
LONWORKS
®
BUS