Wiring Guide

30
BOILER
H
N
DHW
PUMP
1234
ZONE 1
1234
ZONE 2
1234
ZONE 3
1234
ZONE 4
1234
ZONE 5
1234
ZONE 6
PRIORITY
ZONE
2 WIRE ZONE VALVE
(NO END SWITCH) MUST USE JUMPER
TACO
3 WIRE
ZONE VALVE
1
2
3
JUMPER
3 & 4
MOTOR END
SWITCH
4 WIRE ZONE VALVE
(POWER OPEN,
SELF CLOSING)
JUMPER
3 & 4
ZVC 406 – 4
SIX ZONE
ZONE VALVE CONTROL
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
POWER IN
24 VAC
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
N/O
COM
N/C
PUMP END
SWITCH
ZONE 6 PUMP
END SWITCH
THERMOSTATS (24VAC)
T STAT 1
VALVE 1
T STAT 2
VALVE 2
T STAT 3
VALVE 3
T STAT 4
VALVE 4 VALVE 5
T STAT 6
VALVE 6
POWER
LED
INDICATORS
T STAT 5
TO: BOILER AQUASTAT RELAY
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
ISOLATED
XX
END SWITCH THERMOSTATS (24 VAC) PRIORITY
24 VAC ZONE VALVES PRIORITY
XX
ZONE 6
PRIORITY
OFF
ON
NOTE 2: When a circulator is used on the priority zone instead of a zone valve, jumper 3 and 4 of the priority zone.
FUSE
5 AMP
RW
INDIRECT WATER HEATER AQUASTAT OR THERMOSTAT
See
NOTE 1
RW
RW RWCCC
RW
C
C
FUSE
5 AMP
RW
C
NOTE 1: Terminals C are for optional 24V thermostat COMMON connections.
Powered from Transformer A Powered from Transformer B
A
B
Powered from Transformer A Powered from Transformer B
SYSTEM PUMP AND BOILER TURN ON WHEN ANY ZONE VALVE OPENS. DHW PUMP TURNS ON ONLY WHEN PRIORITY ZONE CALLS.
SYSTEM
PUMP
TTT
ZVC403/404/405/406 with System and DHW Pumps