Radiant Mixing Block Connected To Zone Valve Control; Radiant Mixing Block Connected To 2 Exp Switching Relays With Dhw Pump - Taco SR501 Wiring Manual

Radiant Mixing Block Connected to Zone Valve Control with System Pump Wired off the RMB
Outdoor
Sensor
Back of Control
Com Sup Sys Com Boil Out
Ret

Radiant Mixing Block Connected to 2 EXP Switching Relays with DHW Pump

Thermostats
T
SLAVE
PLUG-IN CARDS
1 2 3 4
MASTER
ZONE1
EXPANSION
POWER CONTROL
INTERFACE
THREE ZONE SWITCHING RELAY
RESET NORMAL WITH OPTIONAL PRIORITY
X X ZONE1
ZC ZR
END
120 VOLT CIRCULATORS
SWITCH
24 VAC
POWER
FUSE 1 AMP
N
FOR ADDITIONAL WIRING DIAGRAMS, PLEASE SEE www.taco-hvac.com/wiringwizard
58
Power
Input
Boiler Operation
RMB
Off-Enable On-Control
Pump
Com Heat
Dem
H
N
N
Boiler
Sensor
A
DHW
Aquastat
Outdoor
T
Sensor
ZONE 3
PRIORITY
ON
ZONE2 ZONE3
OFF
SR503-EXP
ComSup
ZONE2 ZONE3 POWER
INPUT
DHW
Circ.
Boiler
Sensor
H
N
Supply
Sensor
Power Cord
Boiler Operation
RMB
Off-Enable On-Control
Back of Control
Pump
Sys Com Boil Out Com Heat
Dem
Ret
H
N
Supply
Sensor
T T
T T T T
ZONE 1 ZONE 2
ZVC 403
FUSE
(5 AMP MAX)
THREE ZONE ZONE VALVE CONTROL
ZONE 1 ZONE 2
E ND N/O COM N/C
SWITCH
1 2 3 4 1 2 3 4
M
T
SLAVE
PLUG-IN CARDS
1 2 3 4
MASTER
EXPANSION
ZONE1
POWER CONTROL
THREE ZONE SWITCHING RELAY
INTERFACE
WITH OPTIONAL PRIORITY
RESET NORMAL
X X ZONE1
ZC ZR
END
120 VOLT CIRCULATORS
SWITCH
24 VAC
POWER
FUSE 1 AMP
Thermostats
T T
ZONE 3
ZONE 3
1 2 3 4
M
T
Thermostats
ZONE 3
PRIORITY
ON
ZONE2 ZONE3
OFF
SR503-EXP
ZONE2 ZONE3 POWER
INPUT
Power
H
Input
N