Installation Guide

12
2 Expandable Switching Relays Connected Together
1
20 VAC INPUT
BOILER
SWITCH SETTINGS
Master/Slave: Slave
Priority Zone: Off
Reset/Normal: Normal
120 VAC INPUT
H
N
SWITCH SETTINGS
Master/Slave: Master
Priority Zone: On
Reset/Normal: Normal
TO: "TT" ON BOILER
DHW
CIRCULATOR
SLAVE
MASTER
F
OUR ZONE
EXPANDABLE
S
WITCHING RELAY
P
OWER
CONTROLS
1
20 VAC CIRCULATORS
ZC
INPUT
120 VAC
Z
ONE 1
Z
ONE 2 ZONE 3 ZONE 4
Z
ONE1 Z
ONE2 Z
ONE3
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
E
XPANSION
M
AIN PRIORITY
XX
XX
AB
CRW
CRW
CRW
CRW
C
12
END SWITCH THERMOSTATS (24 VAC)
PRIORITY
N/C
P
RIMARY
1
20 VAC
ZR
HHNHNHNHNHNHNH NH
SLAVE
PRIORITY ON
RESET
PRIMARY PUMP ON
POST PURGE ON
P
RIORITY PROTECT ON
P
UMP EXERCISE ON
3
0 SEC/2 WK
MASTER
O
FF
OFF
OFF
O
FF
O
FF
N
ORMAL
LOW LIMIT (ZC) ON OFF
4
MIN/24 HOUR
Z
ONE4 ZONE4
PRIORITY
A
CCESSORY
PORT
ZONE 2
POWER
Z
ONE 1
Z
ONE 3
ZONE 4
L
ED
INDICATORS
PRIMARY SYSTEM
CIRCULATOR
(OPTIONAL)
TO: "TT" ON BOILER WITH
DHW "TT" INPUT
SIX ZONE
EXPANDABLE SWITCHING RELAY
P
OWER
CONTROLS
120 VAC CIRCULATORS
ZC
INPUT
120 VAC
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6
ZONE1 ZONE2 ZONE3 ZONE4 ZONE5
THERMOSTATS
SR 506-EXP-4
FUSE
6 AMP
FUSE
6 AMP
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
CRW
CRW
C
12
END SWITCH THERMOSTATS (24 VAC)
PRIORITY
N/C
PRIMARY
120 VAC
ZR
HHNHNHNHNHNHNHNHNH 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
N
ORMAL
LOW LIMIT (ZC) ON OFF
4 MIN/24 HOUR
ZONE6 ZONE6
PRIORITY
ACCESSORY
PORT
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
ZONE 5
ZONE 6
LED
INDICATORS
T
T
INDIRECT
WATER HEATER
AQUASTAT OR
THERMOSTAT
NOTE 1: Terminals C are for
optional 24V thermostat
C
OMMON connections.
See NOTE 1
See NOTE 1