Installation Guide

23
PC700 Boiler Reset Control Connected to 2 EXP Switching Relays
Z
ONE
CONTROL
B
OIL
SEN
O
UT
SEN
BOILER SENSOR
O
UTDOOR
SENSOR
PC700
BOILER
120 VAC INPUT
SWITCH SETTINGS
Master/Slave: Master
Priority Zone: On or Off
Reset/Normal: Reset
FOUR ZONE
EXPANDABLE
SWITCHING RELAY
P
OWER
CONTROLS
1
20 VAC CIRCULATORS
Z
C
INPUT
1
20 VAC
ZONE 1 ZONE 2 ZONE 3 ZONE 4
ZONE1 ZONE2 ZONE3
T
HERMOSTATS
SR 504-EXP-4
F
USE
6 AMP
FUSE
6 AMP
F
USE
6 AMP
F
USE
6 AMP
FUSE
6 AMP
FUSE
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
Z
R
HHNHNHNHNHNHNH NH
SLAVE
PRIORITY ON
R
ESET
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
P
RIORITY
ACCESSORY
P
ORT
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
LED
INDICATORS
T
P
RIMARY SYSTEM
CIRCULATOR
(
OPTIONAL)
120 VAC INPUT
SWITCH SETTINGS
Master/Slave: Slave
Priority Zone: Off
Reset/Normal: Normal
FOUR ZONE
EXPANDABLE
SWITCHING RELAY
POWER
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
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
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
PORT
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
LED
INDICATORS
T
H
N
MASTER
SLAVE
See NOTE 1
NOTE 1: Terminals C are for
optional 24V thermostat
COMMON connections.
See NOTE 1