Installation Guide
7
Priority Zoning Circulator Controlling Switching Relay
TO: "TT" ON BOILER
120 VAC INPUT
BOILER
H
N
MASTER
SLAVE
PRIORITY
ON
PRIORITY
OFF
120 VA
C
INPUT
SIX ZONE SWITCHING RELAY
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 506-4
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
X X R W R W R W R W R W R W
ISOLATED
END
SWITCH
THERMOSTATS (24 VAC)
PRIORITY
120 VAC
ZR
H H N H N H N H N H N H N H N H
ZONE6
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
ZONE 5
ZONE 6
LED
INDICATORS
ZONE 6
PRIORITY
OFF
ON
PRIORITY
24 VAC
COM
REMOVE
JUMPER
P
PRIORITY
24 VAC
OUTPUT
(OPTIONAL)
POWER IN
H
(on)
MASTE
R
CIRC.
ON
PRIORITY
MASTER/SLAVE
SWITCH
R W X X R C
THERMO-
STAT
END
SWITCH
24 VAC
POWER
N
PRIORITY ZONING
CIRCULATOR
INDIRECT
WATER HEATER
AQUASTAT OR
THERMOSTAT










