Model SR501-845RP Universal Replacement Relay

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Your Price: $39.59

Item Number: Model SR501-845RP

Manufacturer: Taco

Manufacturer Part No: Model SR501-845RP

Quantity:

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Features:
Universal Replaceability
Indicator Lights
Snap-in PC Board to Existing Enclosure
Simplified Wiring
Fully Enclosed Snap-Out Relay
100% Factory Tested
Universal Thermostat Compatibility
UL Approved
Extended 3 Year Warranty
Made in the USA
Operation:
Connect a thermostat to the “T T” terminals on
the switching relay. When the thermostat calls for
heat, the relay is energized and power is given to
the circulator.
Power Input:
Connect 120 volt ac power to terminals L1 and L2.
Jumper Placement:
The jumper is factory installed between terminals
L1 and 3 to switch power on terminal 4.
Diagnostics:
The Indicator lights show full functionality of the
switching relay. The green light should always be
on, indicating that power is connected. When the
thermostat calls for heat, both the appropriate circulator
and red indicating light is energized.
The Taco Connection:
Combine the reliability of the Taco Zone Valves,
Priority Zoning Circulators, Thermostats, and the
“00” family of circulators with the advanced features
of the Taco Zone Controls to achieve total system
integration. No matter the application, Taco now provides
the products to maximize system performance
while simplifying both installation and service.
Typical
Wiring
Alternative
Wiring
TO: ZR
TO: ZC
THERMOSTAT
TO: 120 VAC POWER
INPUT
R W
T T
L2 L1 3 4 5 6
120 VAC
POWER
UNIVERSAL REPLACEMENT RELAY T STAT
MODEL: SR501-845RP
REPLACES HONEYWELL
R845, RA89A & RA832
OR COMPARABLE RELAY CIRCULATOR
Terminal Description:
T & T Thermostat Connection
COM Common side of transformer, to power some setback
thermostats
L2 Neutral wire of power input
L1 Hot wire of power input
3 Common terminal for 4
4 Normally open terminal
6 Normally open terminal
5 Common terminal for 6

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