The unit comes with external diagnostic lights, and is 100% factory tested. The Taco Switching Relay is the best choice for all you zoning needs, with advanced PowerPort Cards, external diagnostic lights, switchable priority and contractor … … I have a Taco SR503 switching relay. This product does not meet the new low-lead criteria defined in Safe Drinking Water Act 0000060405 00000 n We understand that this is an inconvenience and are continually working with 0000005245 00000 n Javascript seems to be disabled in your browser. 0000068362 00000 n sr501 1 zone switching relay power t stat typical wiring (cold start) t ac power tor r w t t 24 c com n/o n/c n/c n/o 3 6 5 to: tt on boiler sr501 1 zone switching relay power * t stat * alternative wiring (24 vac powered input signal) h n remove jumper. Its snap-in PC board easily replaces any zone switching relay without replacing or rewiring the entire box. TASR501 $ 137.14 Each Specifications; Main Category: HVAC: Browse Catalog 1: Hydronics: Browse Catalog 2: Controls: Browse Catalog 3: Pumps: Mfr / Trade Name: Taco . Ice Cube Technology - Plug-in Replacement Relays. 0000004297 00000 n 0000133840 00000 n 0000005579 00000 n Taco 1-Zone Switching Relay - $25 (Portland) condition: excellent make / manufacturer: Taco model name / number: SR501-4. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. Compact design. One load must be line voltage; the other may be either line or low voltage. Please provide your Zip code for delivery estimate. 0000068169 00000 n applications only. The single zone switching relays are compatible with conventional and programmable thermostats, UL listed and come with a 3 … 0000004380 00000 n 1 Zone Switching Relay ARGO ﾊﾗﾖ AR822 (AR822II) DPDT. M u l t i-P u m p R e l a y … Orders with Free Ground Shipping also qualify! Zone 1 does not cover the entire length of the primary line because it is difficult to distinguish between faults which are close to bus B like fault at F1, F2, F3 and F4. - Taco SR501-4 1 Zone Switching Relay. My Zone 1 thermostat is. Fuse protected. 1 Zone ZSR101 R W C T T COM L POWER IN N C RELAY #1 NO NC C RELAY #2 NO NC TRANSFORMER PWR ZONE When a zone has a demand from a thermostat (T T or R W) the relay will close sending 120 VAC to Relay 1 NO terminal switching ON the pump, Relay 2 closes C to NO dry contact, signaling the boiler … See all 5 brand new listings. 0000067895 00000 n This process does not require you to purchase the product - it can be easily Zone Valve Switching Relay; Type Switching Relay, 1-Zone, Microprocessor Based Control; Used On Zone Valve, Hot Water Boiler; Approval UL (Canada and US); Voltage Rating 120 Volt AC at 60 Hertz 1 Phase (Power Supply); Current Rating 12 Amp (Power Sup: Shipping weight: 1 Pound: Manufacturer Name: TACO: … 0000050784 00000 n The Taco switching relay is the best choice for all your zoning needs, with advanced timer and boiler functions, external diagnostic lights, switchable Combined with the complete line of Taco zone controls, … 0000058528 00000 n For 1-zone applications, a single thermostat can be wired to control multiple circulators. Two/Three-Zone Switching Relay with Optional Priority Zone 1 Zone 2 Zone 3 Zone 1 Zone 2 Zone 3 Tankless Coil Boiler Application (Alternative Wiring) Multi-PumpRelay_IS_7-07 7/3/07 3:18 PM Page 1. product manufacturer's policy. (lbs) ZSR103 3 9 1/4" 11" 3" 3.2 ZSR104 4 9 1/4" 11" 3" 3.2 ZSR106 6 9 1… endstream endobj 14 0 obj <>>> endobj 15 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/Properties<>>>/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 16 0 obj <>stream 0000009080 00000 n 0000008474 00000 n External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups.