2 Expandable Switching Relays Connected Together; Fuse 1 Amp; Vac Input; Zc Zr - Taco SR501 Wiring Manual
Zone controls, switching relays/ with powerport options and expandable to 20 zones, zone valve controls/with powerport options and expandable to 20 zones, plug-in powerport cards, add-on power controls, fan controls
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SWITCH SETTINGS
Master/Slave: Slave
Reset/Normal: Normal
Priority Zone: Off
SWITCH SETTINGS
Master/Slave: Master
Reset/Normal: Normal
Priority Zone: On
POWER
CONTROL
INTERFACE
24 VAC
POWER
TO: "TT" ON BOILER
BOILER
14
2 Expandable Switching Relays Connected Together
SLAVE
SLAVE
1 2 3 4
MASTER
POWER
EXPANSION
CONTROL
INTERFACE
RESET NORMAL
24 VAC
120V RELAY
POWER
X
END
SWITCH
FUSE 1 AMP
MASTER
PLUG-IN CARDS
SLAVE
MASTER
1 2 3 4
EXPANSION
RESET
120V RELAY
X
X
ZC ZR
END
SWITCH
FUSE 1 AMP
T
PLUG-IN CARDS
ZONE 1 ZONE 2 ZONE 3 ZONE 4
SR504-EXP
FOUR ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
X
ZONE1 ZONE2
ZONE3
ZC ZR
120 VOLT CIRCULATORS
JUMPER
THERMOSTATS
T
ZONE1 ZONE2 ZONE3 ZONE4 ZONE5 ZONE6
SR 506-EXP
NORMAL
SIX ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
ZONE1 ZONE2 ZONE3 ZONE4 ZONE5 ZONE6
120 VOLT CIRCULATORS
JUMPER
THERMOSTATS
ZONE 4
PRIORITY
ON
OFF
POWER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
SR 504-EXP
ZONE4 POWER
INPUT
120 VAC INPUT
AQUASTAT
ON DHW
A
HEATER
ZONE 6
PRIORITY
ON
OFF
POWER
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
ZONE 6
POWER
INPUT
DHW
CIRCULATOR
H
N
120 VAC INPUT
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