Taco Sr502 Switching Relay Wiring The Taco 2-Zone Switching Relay features advanced power port card, external diagnostic light, switchable priority and contractor friendly PC board layout. It comes with assembled dimensions of 7 in. h x 2.5 in. d x 10.5 in. w.
Taco Sr502 Switching Relay Wiring I understand this installation was used by many technicians in older systems. I replaced one Honeywell RA832A switching relay because I tested the output of the transformer and found it wasn't putting out any voltage to the t-stat. After replacing the Honeywell RA832A with a Taco SR501-4 switching relay per Taco's wiring diagram.
Taco Sr502 Switching Relay Wiring Taco SR501-4 - 1 Zone Switching Relay - Taco SR501 Single zone switching relay is a standard equipment for every installer. It can easily replace any brand made by any manufacturer, and will even fit into the existing metal enclosure without rewiring incoming connections. The SR501 single zone switching relay is UL and CSA listed, uses a standard "ice cube" replaceable relay and is
Taco Sr502 Switching Relay Wiring TACO ZONE CONTROLS WIRING GUIDE Pages Switching Relays - Single Zone Wiring 2 - 2 SR502/503 Switching Relay Controlling 2 SR504/506 Switching Relays ZONE 4 ON OFF PRIORITY Y FUSE 1 AMP ZONE 4 TORS ZC ZR X X END SWITCH ZONE4 POWER INPUT SR 504