Honeywell T775 Series Application Manual And Cross Reference page 26

4 Stage Heat and 6 Stage Cool (continued)
–
1 +
L1
(HOT)
24 VAC
L2
5
L1
+
C
(HOT)
L2
RELAY
4
HEAT
NC
4 COM
C
NO
NO
HEAT NO
NO
1 COM
C
NC
RELAY
1
HEAT
2
HEAT
3
SENSOR B
SENSOR A
T
T
T
T775L
T
–
1 +
5
+
C
4
RELAY RELAY
3 8
NC
NC
COM
C C
NO
NO
NO
NO
NO
COM
C
NC
RELAY RELAY
2
COM
NO
COM
NO
1 T775 BUS TERMINALS PROVIDE WIRING CONNECTIONS TO/FROM T775L AND T775S.
2 USE PIGTAIL CONNECTIONS TO WIRE THE T775 BUS TERMINALS ON THE FIRST T775S
SECOND T775S MUST HAVE A JUMPER INSTALLED AS SHOWN AT THE JUMPER TERMINAL.
3
POWER WITH 24 VAC OR 120/240 VAC AT THE APPROPRIATE TERMINAL BLOCK.
4
5 24 VAC POWER TERMINAL BLOCK.
Fig. 31. T775L Wiring - 4 Stage Heat and 6 Stage Cool using 2 Loops.
T
T
FIRST
T775S
2
4 120 VAC
RELAY
7
NC
C
COOL
NO
NO
1
NO NO
NO
C C
COOL
NC
NC 2
RELAY
5 6 COM
COOL 3
COOL 4
T
T
SECOND
T775S
–
1
+
–
3
+
5
+
C
RELAY RELAY
12 11
NC NC
C
C
NO NO
NO
NO NO
COM
NO
C
C
NC NC
RELAY RELAY
9 10 COM
COOL 5
4 120 VAC
COOL
6
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