24 V
A
C
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
FUSE (5 AMP MAX)
TT
TT
TT
TT
TT
ZVC 405
12
34
12
34
12
34
12
34
12
34
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
2 WIRE ZONE V
A
LV
E
(NO END SWITCH)
JUMPER
3 & 4
T
ACO
3 WIRE
ZONE
V
A
L
V
E
1
2
3
MOTOR
END
SWITCH
THERMOSTAT
THERMOSTAT
THERMOSTAT
4 WIRE ZONE VALVE
(POWER OPEN, SELF CLOSING)
T STAT 1
VALVE 1
T STAT 2
VALVE 2
T STAT 3
VALVE 3
T STAT 4
VALVE 4
T STAT 5
VALVE 5
POWER
FIVE ZONE ZONE VALVE CONTROL
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
END
SWITCH
N/O
COM
N/C
TO BOILER AQUASTAT RELAY
POWER IN
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
BOILER
H
N
SYSTEM
PUMP
SYSTEM PUMP AND BOILER TURN ON
WHEN ANY ZONE VALVE OPENS.
TT
T
29
ZV
C
40
3/4
05
with S
ystem P
ump
