Taco 503 Switching Relay Wiring Diagram. All switching relays are relay type dpst have a thermostat current of 18 and have a single phase motor rating per zone of 13 hp 50a at 120 vac. Hydrostat says that this setup should be wired via the zczr terminals while the taco wiring diagram says that this setup should be wired via the tt terminals and the zczr.
Taco sr503 4 3 zone switching relay the taco sr503 4 switching relay is the best choice for all your zoning needs with advanced powerport cards external diagnostic lights switchable priority and contractor friendly pc board layouts. External indicator lights plug in powerport cards switchable priority. Use the cold start wiring diagram.
Is there a wiring diagram on the boiler or.
Combine the reliability of the taco zone valves priority zoning circulators thermostats and the 00 family of circulators with the. Instruction sheet sr503 exp switching relay 102 086 supersedes. Taco sr501 wiring diagrams and gadgets even come to utilize the cover on. External indicator lights priority simplified wiring fully enclosed snap out relays compact design fuse protected outputs 100 factory tested isolated end switch contractor friendly pc.