Taco SR501 User Manual

62
Back of
Control
iSeries-R
B
A
24 Volt
Transformer
N
H Power
Input
C R
24 VAC
POWER INPUT
SENSOR
COMMON
BOILER
SUPPLY
OUTDOOR
POWER
GREEN
SENSOR
ERROR
RED
BACK OF iVALVE-R MIXING VALVE ACTUATOR
iValve, 2-Way Injection, Single Zone
Outdoor
Sensor
Supply
Sensor
Boiler
Sensor
Thermostat
T
H3 5
4
N/ O
4
N/ C
6
N/ O
N
N/ C
6
SR501
1 Z ONE
SWITCHING RELAY
120 VAC
INPUT
TT
COM
WR
24
VAC
End
Switch
Outdoor
Sensor
System
Supply
Sensor
Boiler
Return
Sensor
SENSOR COMMON
CR
24 VAC
POWER INPUT
BOILER
POWER
GREEN
SENSOR
ERROR
RED
SUPPLY
OUTDOOR
iSeries Mixing Valve
iValve-R
System
Supply
Sensor
Boiler
Return
Sensor
(optional)
24 V (ac)
Transformer
iValve-S
or
Back of
Control
End
Switch
SENSOR COMMON
CR
24 VAC
POWER INPUT
BOILER
POWER
GREEN
SENSOR
ERROR
RED
SUPPLY
SETBACK
24 V (ac)
Transformer
or
Setback
Input
FOR ADDITIONAL WIRING DIAGRAMS, PLEASE SEE www.taco-hvac.com/wiringwizard

Taco SR501 Specifications

General

Model	SR501
Category	Control Unit
Input Voltage	120 VAC
Frequency	60 Hz
Switch Type	SPDT
Enclosure Rating	NEMA 1
Type	Relay
Operating Temperature	0°C to 40°C
Relay Output	24 VAC