Switching Relay Controlling Another Switching Relay - Taco SR501 Wiring Manual

SR502/503 Switching Relay Controlling Another SR502/503 Switching Relay
N
120 VAC POWER
H
SLAVE
MASTER
PRIORITY ON
VIA JUMPER
PLACEMENT
T
24 VAC
POWER
SR 503
ZONE1
THREE ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
FUSE 1 AMP
X
N P ZC H X ZR
1
JUMPER
AQUASTAT
ON DHW
A
HEATER
24 VAC
POWER
SR 503
ZONE1
THREE ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
FUSE 1 AMP
N P ZC H X ZR
1
JUMPER
T T
ZONE2 ZONE3
2
ZONE1 ZONE2 ZONE3
120 VOLT CIRCULATORS
TO: "TT" ON AQUASTAT CONTROL
T T
ZONE2 ZONE3
X
2
ZONE1 ZONE2 ZONE3
DHW
HEATER
CIRCULATOR
PRIORITY OFF
VIA JUMPER
PLACEMENT
POWER
ZONE 1
ZONE 2
ZONE 3
BOILER
POWER
ZONE 1
ZONE 2
ZONE 3
120 VOLT
CIRCULATORS
5