I have two Cruisair
A/C units on Jamu (2003 L-42), and used them extensively during this cruising season in Mexico
. One is a model FX-16P and the other is model SXE-16.
After our GOM transit to Pascagoula, MS in mid-May (540 nm in 82 hrs), the
mosquitos on our first evening anchorage at Petit Bois in Gulf Islands Nat'l
Seashore convinced me that a portable generator
to run one A/C unit would be worth the trouble. The 115v current
draw for each unit at full load is 11-13
amps, well within the operating range of a Honda
or Yamaha 2000. I bought the Yamaha and tried it out dockside on one 30A shore power
circuit with the fwd A/C. The A/C (which had been running for some time) re-started and ran just fine. A couple of days later we sailed to spend another night at the island, and I rigged the generator
to run for a couple of hours in the evening. The A/C seawater pump started, but when the compressor
tried to start, the amps surged for an instant to over 30A, and the A/C unit switched off. I switched to the other circuit and got the same result with the aft A/C.
Back at the marina on shore power
and the units do show an instantaneous high amperage draw upon startup. I've not tried the A/C on generator again, for fear of damaging either the A/C or generator.
Has anyone experienced this with Cruisair
units? Is this a 'hard-start'
capacitor issue? Is a 'soft-start' kit available? I can't figure why the A/C
worked with the generator at dockside and then failed to do so at anchor
, unless it has something to do with the fact that the A/C had been running at dockside and was 'warm'. Any advice appreciated.