Honeywell T775 Series 2000 Application Manual page 42

T775 SERIES 2000 ELECTRONIC STAND-ALONE CONTROLLERS
T775L Replacement for W7100C
Discharge Air Controller (continued)
DIGITAL INPUT
(HEAT/COOL CHANGEOVER)
2
T6031 OR T675A
L1
(HOT)
24 VAC
L2
COOL 2
COM
NO
NO
HEAT
COM
1
HEAT
2
COOL 1
Fig. 49. T775L wiring connections for replacing a W7100C Discharge Air Controller.
NOTE: The T775L Replacement for W7100C Discharge Air Controller continues on the next page.
63-7147—05
SENSOR A (C7100D1001)
SENSOR B (SPACE OR OUTDOOR TEMPERATURE)
T
T
T775L
T
T
1
–
+
–
+
4
+
C
RELAY RELAY
4 3
NC NC
C
C
NO NO
NO NO
C C
NC NC
RELAY RELAY
1 2
COM
NO
T775 BUS TERMINALS PROVIDE WIRING CONNECTIONS TO/FROM T775L AND T775S.
1
2 SETUP THE CONTROL (T6031 OR T765) SO THAT IT CLOSES ON A TEMPERATURE FALL.
3 POWER WITH 24 VAC OR 120/240 VAC AT THE APPROPRIATE TERMINAL BLOCK.
24 VAC POWER TERMINAL BLOCK.
4
NOTE: Fig. 49 is for wiring purposes only. A thorough review
of the existing W7100C application is required in
order to determine the capability of the T775
controller replacement.
1
–
+
4
+
C
3
RELAY
8
NC
C
NO
NO
NO
COM
C
NC
RELAY
5
COM
NO
42
T775S
3
120 VAC
RELAY
7
NC
C
NO
NO
COOL 4
NO
COM
C
NC
RELAY
6
COOL 3
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