Honeywell T775A Product Data page 15

L1
SENSOR A
(HOT)
24 VAC
1
L2
LOAD 3
LOAD 4 LOAD 2
COOL MODE
TEMPERATURE
FALL
RELAY 1,2 AND 3
ENERGIZED
DIFFERENTIAL 3
RELAY 1 AND 2
SETPOINT 3
ENERGIZED
DIFFERENTIAL 2
SETPOINT 2
RELAY 1 ENERGIZED
DIFFERENTIAL 1
SETPOINT 1
NULL
NOTE: FOR THERMOSTAT APPLICATIONS, CONNECT CONTACT NO OF COOLING STAGE TO Y1 (AND SECOND STAGE TO Y2)
CONNECT CONTACT NO OF HEATING STAGE TO W1 (AND SECOND STAGE TO W2).
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 FOR T775B,D: CONNECT SENSOR B TO PINS 7 AND 8.
3 DIP SWITCHES FOR SENSOR SELECTION. PRESENT OF T775B,D ONLY.
Fig. 14. Four-stage control, 24 Vac input; 24 Vac load.
SELECT
2
1 2 4
3
TOD
SENSOR
A
OUTPUT 2
NC
LOAD 1
COM
NO
NO
COM
NC
OUTPUT 3
TEMPERATURE
FALL
TEMPERATURE
RISE
15
T775A,B,C,D REMOTE TEMPERATURE CONTROLLER
C \ F
3
SET
ENTER
SA SB
5 6 8
7
24V SENSOR
B
2
OUTPUT 1
120V
NC
COM
COM
240V
NO
NO
COM
NC
OUTPUT 4
HEAT MODE
NULL
RELAY 1 ENERGIZED
RELAY 1 AND 2
ENERGIZED
RELAY 1,2 AND 3
ENERGIZED
SETPOINT 1
DIFFERENTIAL 1
SETPOINT 2
DIFFERENTIAL 2
SETPOINT 3
DIFFERENTIAL 3
TEMPERATURE
RISE
M7425A
63-2489—2