56
Zone V
alve Contr
ol with 1 Low T
emper
atur
e Zone Using P
rior
it
y Zoning Cir
culator
24 V
A
C
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
ZONE 6
MODE
NORMAL
RESET
FUSE (7 AMP MAX)
TT
TT
TT
TT
TT
TT
ZONE 6 PRIORITY
OFF
ON
ZVC 406
12
34
12
34
12
34
12
34
12
34
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
JUMPER
3 & 4
T
ACO
3 WIRE
ZONE V
A
L
V
E
1
2
3
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
T STAT 6
VALVE 6
POWER
SIX ZONE ZONE VALVE CONTROL
WITH OPTIONAL PRIORITY
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
POWER IN
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
N/O
COM
ZONE 6 RELAY
DRY
CONT
ACTS
END
SWITCH
EXTRA
END
SWITCH
MAIN
N/C
TO BOILER AQUASTAT RELAY
BOILER
H
N
SYSTEM
PUMP
A
AQUASTAT ON
DHW HEATER
SYSTEM PUMP AND BOILER TURN ON
WHEN ANY ZONE VALVE OPENS.
12
34
ZONE 6
PRIORITY
ZONE
JUMPER 3 & 4
SEE NOTE
Note: When a circulator is
used on the priority zone
instead of a zone valve,
jumper 3 and 4 of the
priority zone.
TT
T
MOTOR
MOTOR
END
SWITCH
4 WIRE
ZONE VALVE
(POWER OPEN,
SELF CLOSING)
ON
OFF
PRIORITY
POWER IN
120 VAC INPUT
THERMOSTAT
BOILER
PRIORITY
PRIORITY ZONING CIRCULATOR
PR-IN
PR-OUT
LIVE
NEUT
1
2
3
4
PRIORITY
ON