Pc705 Pump Injection Control Connected To 2 Exp Switching Relays - Taco SR501 Wiring Manual

PC705 Variable Speed Pump Injection Control Connected to 2 EXP Switching Relays
OUTDOOR
GREEN/GROUND
SENSOR
RED
BLUE
PC705-2
BOIL SUP OUT ZONE BLACK
SEN SEN SEN CONTROL
SUPPLY SENSOR
BOILER SENSOR
BOILER
SWITCH SETTINGS
Master/Slave: Slave
Reset/Normal: Normal
Priority Zone: No Priority
POWER
CONTROL
INTERFACE
24 VAC
POWER
26
SWITCH SETTINGS
Master/Slave: Master
Reset/Normal: Reset
Priority Zone: On or Off
SLAVE
(SEE NOTE B
ON PAGE 23)
1 2 3 4
MASTER
EXPANSION
SYSTEM
CIRCULATOR
INJECTION
CIRCULATOR
24 VAC
POWER
FUSE 1 AMP
TO: "TT" ON BOILER
SLAVE PLUG-IN CARDS
MASTER
1 2 3 4
EXPANSION
RESET NORMAL
120V RELAY
X X
END
SWITCH
FUSE 1 AMP
JUMPER
SYSTEM
CIRCULATOR
(OPTIONAL)
(SEE NOTE A ON PAGE 23)
PLUG-IN CARDS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
SR 504-EXP
FOUR ZONE SWITCHING RELAY
RESET NORMAL
WITH OPTIONAL PRIORITY
120V RELAY
X X
ZONE1 ZONE2
ZC ZR
END
SWITCH 120 VOLT CIRCULATORS
JUMPER
THERMOSTATS
T
ZONE 1 ZONE 2 ZONE 3 ZONE 4
SR 504-EXP
FOUR ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
ZONE1 ZONE2 ZONE3
ZC ZR
120 VOLT CIRCULATORS
THERMOSTATS
T
MASTER
ZONE 4
PRIORITY
ON
OFF
ZONE3 ZONE4 POWER
INPUT
120 VAC
INPUT
SLAVE
ZONE 4
PRIORITY
ON
OFF
POWER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE4 POWER
INPUT
POWER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
H
N
120 VAC INPUT