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From: Peter Bennett (no email)
Date: Mon Jul 02 2007 - 20:41:07 EDT
Monday, July 2, 2007, 11:38:20 AM, Greg wrote:
GB> -- UPDATE --
GB> Yes. I measured the load at 240V with the stove on and off and it
GB> didn't seem to make any difference. It read 240V the whole time, but
GB> the stove still didn't come up properly on shore power.
GB> As far as the AC units. I would assume they are 110V but I don't know
GB> for sure. They were advertised by the previous owner as dual 16,000
GB> BTU A/C units with Heat. I was able to dig up some user manuals and it
GB> looks like the units have specifications for 115V-240V 50/60Hz. The
GB> specs had two tables listing amps at 115V and amps at 240V. So, I
GB> guess it will operate on 115V or 240V or whatever it can draw. Does
GB> that sound right?
No. It means that the air conditioners can be wired to operate from
120V or to operate from 240V. They will not automagically switch to
accommodate whatever power is available. You should be able to tell
which way they are wired by looking at the breakers feeding them. If
they are wired for 120V, they will be fed from a single pole breaker,
but if they are wired for 240 they should be fed from a two-pole
breaker, which will open both hot wires simultaneously.
GB> The refrigerator is also 115V and it has been operating fine as well.
Are there any 120V circuits (lights, outlets, etc) that aren't
operating correctly at this marina but that did work OK elsewhere, or
on generator?
A 120/240V system will have two "hot" wires which each measure about
120V from neutral. You may measure 240V or 208V between the two hots.
(I believe you said that you had measured 240 V between the hots,
which is good, but makes it more difficult to explain your problem.)
It may be helpful to draw a diagram (or make a list) showing which
circuits are fed from which hot (120V), and which are fed from both
(240V) You will likely have open the electrical panel and prod around
in there to do this. UNPLUG THE SHORE POWER CABLE (and turn off any
inverters) WHILE MESSING ABOUT WITH YOUR SHORE POWER WIRING!!
GB> Thanks all for helping. I'm learning alot.
GB> Greg...
GB> --- Al Thomason <> wrote:
>> I think you mentioned that you were able to measure the Shore Power
>> at 240v
>> (lucky you, not to have a 208 volt supply!).
>>
>> Was that under load with the stove on? If not, would try that and
>> report
>> back.
>>
>> -al-
-- Peter Bennett, VE7CEI Vancouver, B.C., Canada Ennos 31 "Honeycomb" GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca _______________________________________________ http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering To unsubscribe send email to with the word UNSUBSCRIBE and nothing else in the subject or body of the message. Trawlers & Trawlering and T&T are trademarks of Water World Productions. Unauthorized use is prohibited.
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