Local Pickup FAQ's
Hover to zoom
1 Of 5
+
Share This Product
Features
- Simple Servicing
- Easy-to-interpret external diagnostic lights and "ice cube" style replaceable relays mean that servicing a Taco switching relay is always easy.
- Expandable
- Taco's -EXP switching relays may be combined with other relays or expandable Taco zone valve controls for large scale zoning applications. Up to 20 zoning panels may be connected together.
- Add-On Power Controls
- The SR501-EXP-4 is compatible with Taco's PC700 line of supplemental controls. It's easy to add outdoor temperature reset via variable speed pump mixing or boiler reset control.
- Product Compatible With
- Taco -EXP Expandable Zone Controls
Taco's SR501-EXP-4 is a single zone pump switching relay. With universal thermostat compatibility, it is designed to integrate quickly and effortlessly into any hydronic system, bringing Taco reliability to your zoned operations. Post purge and pump exercise operation modes will run your pumps briefly after calls for heat or long periods of inactivity. These improve the efficiency and dependability of your system, respectively. The SR501-EXP-4's enclosure is unobtrusive and easy to mount in tight spaces, and the PC board was designed for quick maintenance and clean, simple wiring.
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov
Specifications
SR501-EXP-4
General Information
Type
Relay
UPC
687752857580
Reviews
Taco SR501-EXP-4 Reviews & Ratings
Be the First to Write a Review
Do you own this product?
Please share your insights with fellow shoppers.
Please share your insights with fellow shoppers.
How-To Articles
How to Pick the Perfect Thermostat
Today's thermostats are more than just the “brain” of your heating ...
An Intro to Tekmar Controls
Getting the most out your hydronic heating system can be difficult. Luckily, Te...
Mini Split HVAC Thermostats and Controls
If you're buying a ductless mini split system, then you appreciate the quiet, e...
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Taco Zone Switching Relay - One Zone - Expandable
Customer Review Images