Installation Guide

44
PC702 and PC705 Connected To 2 EXP Zone Valve Controls
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
H
N
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
W
HITE
BLACK
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
S
WITCH SETTINGS
Master/Slave: Master
Priority Zone: On or Off
R
eset/Normal: Reset
SWITCH SETTINGS
Master/Slave: Slave
Priority Zone: Off
Reset/Normal: Reset
120 VAC
INPUT
MASTER
SLAVE
DHW
PUMP
DRY
CONTACTS
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-EXP-4
SIX ZONE EXPANDABLE
ZONE VALVE CONTROL
POWER IN
24 VAC
N/O COM
N/C
ZONE 6 PUMP
END SWITCH
SLAVE
PRIORITY ON
RESET
POST PURGE ON
PRIORITY PROTECTION ON
PUMP EXERCISE ON
30 SEC/2 WK
MASTER
OFF
NORMAL
OFF
OFF
OFF
4 MIN/24 HOUR
THERMOSTATS (24 VAC)
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
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6 NET
EXPANSION
MAIN
PRIORITY
XX
XX
AB
CRW
CRW
CRW
CRW
CRW
CRW
C
12
END SWITCH THERMOSTATS (24 VAC)
PRIORITY
24 VAC ZONE VALVES
1234
ZONE 1
1234
ZONE 2
1234
ZONE 3
1234
ZONE 4
1234
ZONE 5
1234
ZONE 6
P
RIORITY
ZONE
2 WIRE ZONE VALVE
(
NO END SWITCH)
MUST USE JUMPER
TACO
3
WIRE
ZONE VALVE
1
2
3
J
UMPER
3 & 4
MOTOR END
SWITCH
4 WIRE ZONE VALVE
(POWER OPEN,
SELF CLOSING)
JUMPER
3 & 4
ZVC 406-EXP-4
SIX ZONE EXPANDABLE
Z
ONE VALVE CONTROL
POWER IN
24 VAC
N/O COM N/C
PUMP END
SWITCH
ZONE 6 PUMP
END SWITCH
SLAVE
PRIORITY ON
RESET
POST PURGE ON
PRIORITY PROTECTION ON
PUMP EXERCISE ON
3
0 SEC/2 WK
MASTER
OFF
NORMAL
OFF
OFF
OFF
4
MIN/24 HOUR
THERMOSTATS (24 VAC)
I
NDIRECT
WATER HEATER
AQUASTAT OR
THERMOSTAT
T STAT 1
V
ALVE 1
T STAT 2
VALVE 2
T
STAT 3
V
ALVE 3
T
STAT 4
V
ALVE 4
V
ALVE 5
T
STAT 6
V
ALVE 6
P
OWER
LED
INDICATORS
T STAT 5
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
NET
EXPANSION
MAIN
PRIORITY
XX
XX
AB
CRW
CRW
CRW
CRW
CRW
CRW
C
12
END SWITCH THERMOSTATS (24 VAC) PRIORITY
24 VAC ZONE VALVES
PRIORITY
PRIORITY
XX
PUMP END
SWITCH
XX
POWER
CONTROLS
A
CCESSORY
PORT
FUSE
5 AMP
FUSE
5 AMP
POWER
CONTROLS
ACCESSORY
PORT
FUSE
5 AMP
FUSE
5 AMP
NOTE 2: When a circulator
is used on the priority zone
instead of a zone valve,
jumper 3 and 4 of the
priority zone.
See NOTE 2
NOTE 1: Terminals C are for
optional 24V thermostat
COMMON connections.
P
owered from Transformer A
A
B
A
B
Powered from Transformer A
Powered from Transformer B
Powered from Transformer A
Powered from Transformer B
P
owered from Transformer B
See NOTE 1
TTT
TTT
S
YSTEM PUMP AND BOILER TURN ON
WHEN ANY ZONE VALVE OPENS.
SYSTEM
PUMP
ZONE
CONTROL
BOIL
SEN
OUT
SEN
BOILER SENSOR
OUTDOOR
SENSOR
PC702
STAGE
1
STAGE
2
BOILER
#2
BOILER
#1
D
HW
D
EMAND
W
IRING NEEDED ONLY IF
PRIORITY ZONE IS DHW
D
HW PUMP TURNS ON ONLY
WHEN PRIORITY ZONE CALLS.
ZONE
CONTROL
BOIL
SEN
OUT
SEN
BOILER SENSOR
OUTDOOR
SENSOR
PC705-2
SUP
SEN
SUPPLY SENSOR
INJECTION
CIRCULATOR
S
YSTEM
C
IRCULATOR
BLACK
B
LUE
R
ED
GREEN/GROUND
(SEE NOTE B
ON PAGE 22)