T&T: A/C pump electrical hookup

[Peter Bennett]

Sunday, October 8, 2006, 9:29:21 AM, Michael wrote:

ML> Hey Listees
ML> Unfortunately the pump I bought is not an exact duplicate of the one that
ML> came out, of course. The motor/pump is dual voltage. There is a plate on the
ML> motor that is separated by "low voltage" and "high voltage", which I believe
ML> is between 115 and 220. My boat is 115. I am planning to move the internal
ML> wires with bayonet connectors as indicated on the plate to conform with the
ML> "low voltage" setting arrangement. So far I think I'm comfortable with that.
ML> OK?

I would think/hope that the motor or its spec sheet would clearly indicate the voltages it is intended to operate on - however, your assumption of 115/220 is likely correct.

ML> Now the green wire coming from the circuit breaker panel on the boat is
ML> ground and I have a place to hook that up. Now the pump did not come with
ML> any instructions or wiring diagrams, other than the plate on the motor.
ML> Additionally on that plate it is marked with numbers that correspond to
ML> numbers at the connectors 1 thru 6. 1 and 2 are marked as "line" on the
ML> plate, with "BLK" indicated for number 2. However, I believe that is meant
ML> to indicate the internal wiring BLK wire and not the one coming from the CB
ML> panel. I know this is probably basic, but where do the BLK and WHITE
ML> connectors from the CB attach to the motor? I wanted to make sure I had this
ML> right before connecting.

In AC wiring, the black wire is "hot" or "line", and the white wire is "neutral".   Green is safety ground, and should connect to the case of the motor.



-- 
Peter Bennett, VE7CEI    Vancouver, B.C., Canada
Lien Hwa 28 (AKA Polaris 30) "Sea Spray"
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Vancouver Power Squadron: http://vancouver.powersquadron.ca