Ac Spd Connection Diagram. Diagram dd4 low speed low speed u1 u1 v1 v1 w1 w1 u2 u2 v2 v2 w2 w2 l1 l1 l2 l2 l3 l3 e e high speed red leads red leads black leads black leads diagram dd3. J17 it can also be used at all levels of the power supply network.
You must refer to this diagram while wiring the spd. Always refer to your thermostat or equipment installation guides to verify proper wiring. Pv plus bus red wire battery negative black wire ground ac in black red wire ac out black red wire.
Through the enclosure hole and mount the spd enclosure.
Pv plus bus red wire battery negative black wire ground ac in black red wire ac out black red wire. Select the correct wiring diagram for the spd you are install ing. J17 it can also be used at all levels of the power supply network. Note some ac systems will have a blue wire with a pink stripe in place of the yellow or y wire.
