Taco SR501 User Manual

74
Wiring Taco LF Series Low Water Cutoffs
to Taco Electric Water Feeder with the Same Voltages
NC NO COM H N
Taco LFx120x / LFx024x
GND P
BURN ER
CIR CUIT
HOT
NEUTRAL
HN
Taco E W F120 / E W F024
LW
120 V AC / 24 V AC
CIRCUIT
EWF Standard Wiring
FACTORY
INSTALLED
JUMPER
Wiring Taco LF Series Low Water Cutoffs
to Taco Electric Water Feeder with Different Burner Voltages
NC NO H N
Taco LFx120x
GND P
BURNER
CIRC UIT
120 VAC
CIRCUIT
HOT
NEUTRAL
H N
Taco EW F024
LW
24 V AC
CIRCUIT
HOT
NEUTRAL
Taco LFx024x
BURNER
CIRC UIT
120 VAC
CIRCUIT
HOT
NEUTRAL
H N
Taco EW F120
LW
24 V AC
CIRCUIT
HOT
NEUTRAL
*
*
* NOTE:
Remove factory installed
ju mper between H and COM terminals
EWF Alternate Wiring
NC COMNO H N GND PCOM

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