taco switching relay for sale, brand-new and used.

TACO SR503 THREE ZONE SWITCHING RELAY WITH PRIORITY ZONE Switching Relays Simply Advanced! Taco Switching Relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic priority switching, plug-in PowerPort cards, or add-on power controls, the job is made easy.

TACO SR502 TWO ZONE SWITCHING RELAY WITH PRIORITY ZONE Switching Relays Simply Advanced! Taco Switching Relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic priority switching, plug-in PowerPort cards, or add-on power controls, the job is made easy.

TACO SR506 TACO 6 ZONE SWITCHING RELAY WITH PRIORITY

New in box TACO switching relay for pump control.

TACO SR503 TACO 3 ZONE PANEL WITH PRIORITY

TACO SR504 TACO 4 ZONE PANEL WITH PRIORITY

New in the box

New, never opened SR506, 6-Zones with Priority, 120 VAC Input, 20 amps, 11 3/4" x 7 1/2" x 3". The Taco Switching Relay is the best choice for all your zoning needs

TACO VR1816-HY1-FC2A00 The Viridian VR1816 circulator is an infinitely variable speed, high-efficiency wet rotor circulator with an ECM permanent magnet motor. Operating modes include infinitely variable fixed speed and self-adjusting constant pressure or proportional pressure variable speed.

Taco 2 zone switching relay with zone 2 priority option. 120v output for circulator pump style zoning, not for 24v zone valve control.

TACO SR501-OR-4 FUEL MIZER SINGLE ZONE SWITCHING RELAY WITH OUTDOOR RESET The FuelMizer™ (SR501-OR) is a microprocessor-based control designed to regulate the supply water temperature of a single boiler, based on the outdoor temperature. The FuelMizer is a boiler reset control and switching relay in one unit; it is ideal for retrofit application, but may also be used in new installations as well. Full outdoor boiler reset control

NEW Taco 6 Zone Switching Relay w/ Priority SR506-EXP NEW Taco 6 Zone Switching Relay Expandable SR506-EXP Never been used! Official product - new new new! Check out our positive feedback!

Brand New.. Discontinued model. Sealed in box...

The Taco Switching Relay is the best choice for all your zoning needs, with advanced timer and boiler functions, external diagnostic lights, switchable priority and contractor friendly PC board layouts. Combined with the time proven reliability of the 00® family of circulators and thermostats, total system integration is achieved.

Brand new never installed.  Box only opened for pictures. 

TACO ZVC406 TACO 6 ZONE SWITCHING RELAY WITH PRIORITY FOR ZONE VALVES

Brand new