Taco Expandable Relay Wiring Diagram


Taco SR503-EXP-4, 3-Zone Switching Relay, Expandable - PexUniverse 3-Zone Switching Relay w/ Priority, Expandable. Brand: Taco

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Alternative Wiring diagram. Failure to follow these wiring instructions may Failure to follow these wiring instructions may result in a secondary source of power being connected to the boiler that may. Just use Taco's PC700 series of Power Controls along with any Taco Expandable Relay Unit (-EXP model). There are no complex wiring diagrams. Simply plug the interface cable directly into the expandable relay and attach the supplied sensors. Product Specifications.. 3 69-1292 R8845U UNIVERSAL SWITCHING RELAY Fig. 1. R8845U dimensions in in. (mm). INSTALLATION When Installing this Product . . . 1. Read these instructions carefully..

wire to terminal N. Hot wire to terminal H. Expansion Connections: Set the expansion switch to MASTER on the switching relay that has the designated priority zone or. As relay diagrams show, when a relay contact is normally open (NO), there is an open contact when the relay is not energized. When a relay contact is Normally Closed (NC), there is a closed contact when the relay is not energized. In either case, applying electrical. schematic diagram single supply circuit component arrangement legend cb fu gnd htr rec circuit breaker line fuse equipment ground heater rectifier tdr time delay recitfier field power wiring marked terminal plug and receptacle label ( 3 ) 9 11 7 3 2 yel orn vio relay 1 22 vdc coil rec field power wiring see rating plate disconnect per nec for volts & hertz gnd l1 l1 l2 or cb or l2 see note #1.

26.02.2018  · Your boiler's owner's manual may also have instructions for zone valve wiring. Look for any diagrams to help you connect valve wiring in the system's control box. Look for any diagrams to help you connect valve wiring in the system's control box..


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