Installation Guide

iSeries-R
B
C
A
B
C
A
Supply
Sensor
H
N
P
ower
I
nput
C R
24 VAC
P
OWER INPUT
S
ENSOR
COMMON
BOILER
SUPPLY
OUTDOOR
P
OWER
GREEN
SENSOR
ERROR
RED
B
ACK OF iVALVE-R MIXING VALVE ACTUATOR
DHW
Circ.
iValve, 3-Way Mixing Working with SR502/503 Switching Relay with DHW Priority
24 Volt
Transformer
C R
24 VAC
POWER INPUT
SENSOR
C
OMMON
BOILER
SUPPLY
OUTDOOR
POWER
GREEN
SENSOR
ERROR
RED
BACK OF iVALVE-R MIXING VALVE ACTUATOR
M
M
H
N
iValve, 4-Way Mixing Working with Zone Valve Control
iSeries-R
Factory
Installed
Transformer
T
T
Motor End Switch
Motor
End Switch
Power
Input
Outdoor
Sensor
Boiler
Sensor
Supply
Sensor
Boiler
Sensor
THREE ZONE SWITCHING RELAY
120 VAC CIRCULATORS
ZC
INPUT
120 VAC
ZONE 1 ZONE 2
ZONE 3
P
RIORITY
ZONE1 ZONE2
ZONE3
PRIORITY
SR 503-4
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
FUSE
6 AMP
XX
RW
RW
RW
ISOLATED
END
SWITCH
THERMOSTATS (24 VAC)
120 VAC
Z
R
HHNHNHNH NH
ZONE 2
POWER
ZONE 1
ZONE 3
LED
I
NDICATORS
ZONE 3
PRIORITY
OFF
O
N
24 VAC
COM
24 Volt
Transformer
O
utdoor
Sensor
1
234
ZONE 1
1
234
ZONE 2
1
234
ZONE 3
PRIORITY
ZONE
J
UMPER
3
& 4
ZVC 403 – 4
THREE ZONE
ZONE VALVE CONTROL
POWER IN
24 VAC
TO
CIRCULATOR
N/O COM
N/C
PUMP END
SWITCH
FUSE
5 AMP
ZONE 3 PUMP
END SWITCH
THERMOSTATS (24VAC)
T STAT 1
VALVE 1
T STAT 2
V
ALVE 2
T STAT 3
VALVE 3
P
OWER
LED
INDICATORS
ZONE 1 ZONE 2 ZONE 3
ISOLATED
XX
RW
RW RW
END SWITCH THERMOSTATS PRIORITY
2
4 VAC ZONE VALVES
P
RIORITY
X
X
ZONE 3
PRIORITY
OFF
ON
NOTE 2: When a circulator is
used on the priority zone
instead of a zone valve,
jumper 3 and 4 of the
priority zone.
NOTE 1: Terminals C are for
optional 24V thermostat
COMMON connections.
CCC
See NOTE 1
T
T
24 VAC
WHITE
B
LACK
T
HERMOSTATS
(24VAC)
INDIRECT
W
ATER HEATER
AQUATSTAT OR
T
HERMOSTAT
See NOTE 2
FOR ADDITIONAL WIRING DIAGRAMS, PLEASE SEE www.taco-hvac.com/wiringwizard
66