Taco SR502-4 Two Zone Switching Relay

Hello! Thank you for seeking help from our team concerning the Taco SR502-4 2-zone switching relay. Please turn to pages 2 to 4 of this Wiring Guide for your reference. We hope this information helps. Thank you for trusting PlumbersStock. Have a nice day!

Hi! Thank you for asking about the Taco SR502-4 Two-Zone Switching Relay. Yes, the input power sources are L1 and L2 of the boiler aquastat. If you're interested in purchasing this switching relay, just click "Add to Cart" and fill in the information needed.Thank you for reaching out to PlumbersStock. Have a great day!

Hi, there! Thank you for posting your query on the Taco SR502-4 two-zone switching relay. We have searched for any possible information regarding your query, but to no avail. We have contacted the manufacturer, and they haven't responded yet. However, you may contact them at 401-942-8000 from Monday to Friday, 7:00 am to 5 pm or send them a message through their website. We hope this helps. For more inquiries, don't hesitate to contact one of our knowledgeable customer support specialists at 435-868-4020 between 7:00 AM and 7:00 PM MST or via email at support@plumbersstock.com. They will be happy to assist you further. Thank you for contacting PlumbersStock! Have a nice day!