Installation Guide

25
PC705 Variable Speed Pump Injection Control Connected to 2 EXP Switching Relays
120 VAC INPUT
SWITCH SETTINGS
M
aster/Slave: Master
Priority Zone: On or Off
Reset/Normal: Reset
FOUR ZONE
EXPANDABLE
SWITCHING RELAY
P
OWER
CONTROLS
120 VAC CIRCULATORS
ZC
INPUT
120 VAC
ZONE 1 ZONE 2 ZONE 3 ZONE 4
ZONE1 ZONE2 ZONE3
THERMOSTATS
SR 504-EXP-4
FUSE
6 AMP
F
USE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
F
USE
6 AMP
F
USE
6 AMP
NET
EXPANSIONMAIN PRIORITY
X
X
X
X
A
B
C
RW
C
RW
C
RW
C
RW
C
1
2
END SWITCH THERMOSTATS (24 VAC)
PRIORITY
N/C
P
RIMARY
120 VAC
ZR
HHNHNHNHNHNHNH NH
SLAVE
PRIORITY ON
RESET
PRIMARY PUMP ON
POST PURGE ON
PRIORITY PROTECT ON
PUMP EXERCISE ON
30 SEC/2 WK
MASTER
OFF
OFF
OFF
OFF
OFF
NORMAL
LOW LIMIT (ZC) ON OFF
4 MIN/24 HOUR
ZONE4 ZONE4
PRIORITY
ACCESSORY
P
ORT
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
LED
INDICATORS
T
120 VAC INPUT
SWITCH SETTINGS
Master/Slave: Slave
Priority Zone: Off
Reset/Normal: Normal
FOUR ZONE
EXPANDABLE
SWITCHING RELAY
POWER
C
ONTROLS
120 VAC CIRCULATORS
ZC
INPUT
120 VAC
ZONE 1 ZONE 2 ZONE 3 ZONE 4
ZONE1 ZONE2 ZONE3
THERMOSTATS
SR 504-EXP-4
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
NET
EXPANSIONMAIN PRIORITY
XX
XX
AB
CRW
CRW
CRW
CRW
C
12
END SWITCH THERMOSTATS (24 VAC)
PRIORITY
N/C
PRIMARY
120 VAC
ZR
HHNHNHNHNHNHNH NH
SLAVE
P
RIORITY ON
RESET
PRIMARY PUMP ON
POST PURGE ON
PRIORITY PROTECT ON
PUMP EXERCISE ON
30 SEC/2 WK
MASTER
OFF
OFF
OFF
OFF
OFF
NORMAL
LOW LIMIT (ZC) ON OFF
4 MIN/24 HOUR
ZONE4 ZONE4
PRIORITY
ACCESSORY
PORT
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
LED
INDICATORS
T
H
N
MASTER
SLAVE
T
O: "TT" ON BOILER
BOILER
ZONE
C
ONTROL
BOIL
S
EN
OUT
S
EN
BOILER SENSOR
OUTDOOR
SENSOR
PC705-2
SUP
S
EN
SUPPLY SENSOR
INJECTION
CIRCULATOR
SYSTEM
CIRCULATOR
B
LACK
BLUE
RED
G
REEN/GROUND
(
SEE NOTE B
ON PAGE 22)
(SEE NOTE A
O
N PAGE 22)
PRIMARY SYSTEM
CIRCULATOR
(OPTIONAL)
See NOTE 1
NOTE 1: Terminals C are for
optional 24V thermostat
COMMON connections.
See NOTE 1