Wiring Guide

39
PC705 Variable Speed Pump Injection Control Connected To EXP Zone Valve Control
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
H
N
BOILER
24 VAC
FACTORY
INSTALLED
TRANSFORMER
120 VAC
INPUT
WHITE
BLACK
SWITCH SETTINGS
Master/Slave: Master Priority Zone: On or Off Reset/Normal: Reset
120 VAC
INPUT
SYSTEM CIRCULATOR AND BOILER TURN ON WHEN ANY ZONE VALVE OPENS.
SYSTEM CIRCULATOR
(OPTIONAL LOCATION)
DRY
CONTACTS
TO: BOILER AQUASTAT RELAY
TO: "TT" ON BOILER WITH DHW "TT" INPUT
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
PUMP END
SWITCH
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)
INDIRECT WATER HEATER AQUASTAT OR THERMOSTAT
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 PRIORITY
XX
POWER
CONTROLS
ACCESSORY
PORT
FUSE
5 AMP
FUSE
5 AMP
Powered from Transformer A
A
B
NOTE 2: When a circulato
r
is used on the priority zone instead of a zone valve, jumper 3 and 4 of the priority zone.
NOTE 1: Terminals C are for optional 24V thermostat COMMON connections.
Powered from Transformer A
Powered from Transformer B
Powered from Transformer B
See NOTE 1
TTT
ZONE
CONTROL
BOIL
SEN
OUT
SEN
BOILER SENSOR
OUTDOOR
SENSOR
PC705-2
SUP
SEN
SUPPLY SENSOR
INJECTION
CIRCULATOR
SYSTEM
CIRCULATOR
AND/OR BOILER
BLACK
BLUE RED
GREEN/GROUND
(SEE NOTE B
ON PAGE 22)