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T775A,B,C,D REMOTE TEMPERATURE CONTROLLER
63-2489—2 14
Fig. 13. Four stage control, 120 or 240 Vac input, 120 or 240 Vac load.
HEAT MODE
M7424A
NULL
DIFFERENTIAL 3
TEMPERATURE
RISE
RELAY 1 ,2,3 AND 4
ENERGIZED
SETPOINT 3
RELAY 1,2 AND 3
ENERGIZED
DIFFERENTIAL 4
SETPOINT 4
DIFFERENTIAL 2
SETPOINT 2
RELAY 1 AND 2
ENERGIZED
DIFFERENTIAL 1
SETPOINT 1
RELAY 1 ENERGIZED
COOL MODE
DIFFERENTIAL 2
TEMPERATURE
RISE
RELAY 1 AND 2
ENERGIZED
RELAY 1 ENERGIZED
DIFFERENTIAL 1
SETPOINT 2
SETPOINT 1
NULL
RELAY 1,2 AND 3
ENERGIZED
DIFFERENTIAL 3
SETPOINT 3
TEMPERATURE
FALL
RELAY 1,2,3 AND 4
ENERGIZED
DIFFERENTIAL 4
SETPOINT 4
SENSOR A
BLK
WHT
120 VAC
LOAD 4
LOAD 3
LOAD 2 LOAD 1
RED
120 VAC INPUT; 120 VAC LOADS
240 VAC INPUT; 240 VAC LOADS
240 VAC
TEMPERATURE
FALL
SELECT
SET
ENTER
12
3
4
1
2
3
4
SA SB
C \ F
SENSOR
A
SENSOR
B
TOD
24V
5
6
120V
COM
240V
OUTPUT 2
OUTPUT 1
OUTPUT 3
OUTPUT 4
NO
COM
NC
NO
COM
NC
NC
COM
NO
7
8
NC
COM
NO
SENSOR A
BLK
LOAD 4
LOAD 3
LOAD 2 LOAD 1
SELECT
SET
ENTER
12
3
4
1
2
3
4
SA SB
C \ F
SENSOR
A
SENSOR
B
TOD
24V
5
6
120V
COM
240V
OUTPUT 2
OUTPUT 1
OUTPUT 3
OUTPUT 4
NO
COM
NC
NO
COM
NC
NC
COM
NO
7
8
NC
COM
NO
T775A
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
FOR T775B,D: CONNECT SENSOR B TO PINS 7 AND 8.
DIP SWITCHES FOR SENSOR SELECTION. PRESENT OF T775B,D ONLY.
1
2
3
1
2
3
1
2
2
2
3