Pc702 And Pc705 Connected To 2 Exp Zone Valve Controls - Taco SR501 Wiring Manual

PC702 and PC705 Connected To 2 EXP Zone Valve Controls

OUTDOOR
SENSOR
DHW
DEMAND
PC702
STAGE STAGE BOIL OUT ZONE
1 2 SEN SEN CONTROL
BOILER SENSOR
WHITE
120 VAC
INPUT
BLACK
BOILER
#1
WHITE
120 VAC
INPUT
BLACK
BOILER
#2
OUTDOOR
SENSOR GREEN/GROUND
RED
BLUE
PC705-2
BLACK
BOIL SUP OUT ZONE
SEN SEN SEN CONTROL
SUPPLY SENSOR
BOILER SENSOR
SWITCH SETTINGS
Master/Slave: Slave
Reset/Normal: Normal
Priority Zone: Off
46
SWITCH SETTINGS
Master/Slave: Master
Reset/Normal: Normal
Priority Zone: On or Off
WIRING NEEDED ONLY IF
PRIORITY ZONE IS DHW
MASTER
24 VAC
SLAVE
POWER
CONTROLS
MODE
RESET NORMAL
END
SWITCH
N/O COM N/C
B
ZONE 6 RELAY
PUMP
SYSTEM
CIRCULATOR
SYSTEM CIRCULATOR AND BOILER TURN ON WHEN ANY ZONE VALVE OPENS.
DHW CIRCULATOR TURNS ON ONLY WHEN PRIORITY ZONE CALLS.
(SEE NOTE B ON PAGE 23)
SYSTEM
CIRCULATOR
INJECTION
CIRCULATOR
SLAVE
WHITE
120 VAC
24 VAC
INPUT
POWER
BLACK
CONTROLS
MODE
RESET
WHITE
120 VAC
24 VAC
INPUT
BLACK
END
SWITCH
B
PUMP
T
24 VAC
PLUG-IN
CARDS
1 2 3 4
T T T
ZONE 1 ZONE 2
EXPANSION
MASTER
SIX ZONE ZONE VALVE CONTROL
WITH OPTIONAL PRIORITY
ZONE 1 ZONE 2
END
SWITCH
1 2 3 4 1 2 3 4
A
BOILER
JUMPER
3 & 4
2 WIRE ZONE VALVE
DHW
(NO END SWITCH) 3 WIRE ZONE VALVE
CIRCULATOR
T
PLUG-IN
CARDS
SLAVE
1 2 3 4
T T
ZONE 1
EXPANSION
MASTER
NORMAL
ZONE 1 ZONE 2
END
SWITCH
N/O COM N/C
1 2 3 4 1 2 3 4
A
ZONE 6 RELAY
BOILER
DRY JUMPER
CONTACTS
3 & 4
2 WIRE ZONE VALVE
(NO END SWITCH)
Note: When a circulator is used on the
priority zone instead of a zone valve,
jumper 3 and 4 of the priority zone.
INDIRECT WATER HEATER
AQUASTAT OR THERMOSTAT
T T
T T T T T T T T T
ZONE 3 ZONE 4 ZONE 5 ZONE 6
ZVC 406-EXP
ZONE 3 ZONE 4 ZONE 5 ZONE 6
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
PRIORITY
ZONE
MOTOR END
1
SWITCH
2
3
TACO
4 WIRE ZONE VALVE
(POWER OPEN, SELF CLOSING)
H
N
T T
24 VAC
T T T T T T T T
ZONE 2 ZONE 3 ZONE 4 ZONE 5
ZVC 406-EXP
SIX ZONE ZONE VALVE CONTROL
WITH OPTIONAL PRIORITY
ZONE 3 ZONE 4 ZONE 5
1 2 3 4 1 2 3 4 1 2 3 4
1 MOTOR END
SWITCH
2
3
TACO
4 WIRE ZONE VALVE
3 WIRE ZONE VALVE
(POWER OPEN, SELF CLOSING)
ZONE 6
PRIORITY
ON
T STAT 1
OFF
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 ON
JUMPER
3 & 4
SEE NOTE
ZONE 6
PRIORITY
ON
T STAT 1
T T
OFF
VALVE 1
ZONE 6
T STAT 2
VALVE 2
T STAT 3
VALVE 3
T STAT 4
VALVE 4
T STAT 5
VALVE 5
T STAT 6
ZONE 6
VALVE 6
1 2 3 4
POWER ON
JUMPER
3 & 4
SEE NOTE
PRIORITY
ZONE