9
P
rior
it
y Zoning Cir
culator Contr
olling 2 S
R
504/5
06
Switc
hing R
elays
ZONE 4
ON
OFF
PRIORITY
120V RELA
Y
FUSE 1 AMP
ZONE 1
Z
ONE 2
ZONE 3
Z
ONE 4
120 VOL
T CIRCULA
TORS
ZC ZR
X X
END
SWITCH
ZONE1
ZONE2
ZONE3
ZONE4
POWER
INPUT
SR 504
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
T
T
T
BOILER
ZONE 4
ON
OFF
PRIORITY
120V RELA
Y
FUSE 1 AMP
24 VAC
POWER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
120 VAC INPUT
TO: "TT" ON BOILER
120 VOL
T CIRCULA
TORS
ZC ZR
X X
END
SWITCH
ZONE1
ZONE2
ZONE3
ZONE4
POWER
INPUT
SR 504
ZONE 2
POWER
ZONE 1
ZONE 3
ZONE 4
T
T
T
H
N
FOUR ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
FOUR ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
SLAVE
SLAVE
PRIORITY
OFF
PRIORITY
OFF
T
T
24 VAC
POWER
ON
OFF
PRIORITY
POWER IN
THERMOSTAT
BOILER
PRIORITY
PRIORITY ZONING CIRCULATOR
PR-IN
PR-OUT
LIVE
NEUT
1
2
3
4
A
AQUASTAT ON
DHW HEATER
120 VAC INPUT
MASTER
PRIORITY
ON
REMOVE
JUMPER
REMOVE
JUMPER
