Honeywell T7350 Product Data page 28

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
T7770 REMOTE SENSOR
9 8
SUBBASE
T5
EB
®
L W
ON ORKS
BUS
®
L W
ON ORKS
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.
Fig. 23. Typical hookup of T7350H1017 for system with two independent heat stages (one modulating),
T7770 REMOTE SENSOR
SUBBASE
1 2
1
2
3
4
Fig. 24. Typical hookup of T7350M for system with two independent heat stages (one modulating),
63-2605—5
OUTDOOR
AIR
SENSOR
7 6 5 4 3 2 1
T6 T7 T4 T3 OS OS
EB HS HC HP M
HUMIDITY
MOTION
SENSOR
SENSOR
two independent cool stages (one modulating), and two transformers.
OUTDOOR
AIR
SENSOR
9 8 7 6 5 4 3 2 1
T5 T6 T7 T4 T3 OS
HS HC HP M
HUMIDITY
MOTION
SENSOR
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.
two independent cool stages (one modulating), and one transformer.
MODULATING
DISCHARGE
HEAT
–
AIR
(4-20 mA)
+
SENSOR
AS AS AX AH AC
M X RH RC AUX W1
2
HEAT
RELAY 1
COMPRESSOR
CONTACTOR 1
3
ECONOMIZER
MODULATING
DISCHARGE
–
AIR
(4-20 mA)
+
SENSOR
OS AS AS MX MH MC
M X RH RC AUX W1
3 HEAT
RELAY 1
4
ECONOMIZER
28
MODULATING R
COOL
–
(4-20 mA) X
+
R
X
AUX
Y1 G
FAN
RELAY
COOLING
TRANSFORMER
MODULATING R
COOL
–
(4-20 mA) X
+
R
HEAT
X
Y1 G
FAN
RELAY
COMPRESSOR
CONTACTOR 1
M19769A
L2
1
L1
(HOT)
M22006