6-Zone Switching Relay w/ Priority, Expandable
Mfr Part#: SR506-EXP-4
Taco SR506-EXP is a 6-Zone Expandable Switching Relay. Combines clearly labeled PC board layout with advanced features that allow for total system customization. Taco expandable switching relays allow to expand up to 20 zones, while built-in PowerPort slots allow to utilize the advanced features of the PowerPort Cards and Add-on Power Controls. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. Taco SR506-EXP expandable switching relay is UL and CSA listed, uses standard “ice cube” replaceable relay and is compatible with conventional and programmable thermostats.
Max combined load: 20.0 AMPs;
Dimensions: 11.75" wide x 7.50" high x 3.00" deep.
is this switch used for zoning with circulators, or can it be used for zone valves as well?
Read 1 answer
Taco SR series switching relays are for zoning with circulators only. If you need a zone valve control, see Taco ZVC series (http://www.pexuniverse.com/taco-zone-valve-controls)
Answered on 6/20/2016 by PexUniverse Customer Service
What are the external lights general purpuse
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External LED lights indicate current operating status of the system and allow to diagnose and troubleshoot any issues should they arise.
Answered on 12/5/2012 by PexUniverse Customer Service