24 VAC
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5
FUSE (5 AMP MAX)
TT
TT TT TT TT
ZVC 405
1234 12 34 12 34 1234 1234
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5
2 WIRE ZONE VALVE
(NO END SWITCH)
JUMPER
3 & 4
TACO
3 WIRE ZONE VALVE
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.
TTT
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