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Old 06-11-2018, 12:37 AM   #16
HopCar
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City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 5,307
I only had a 5K btu air conditioner on Possum. It took about 600 watts to run it and the little March pump to supply the water to it.

I couldn’t get it to run on a Honda 2000i generator until I installed a Supco. Then it started and ran fine. I even tried it on a little Honda 1000 and it started and ran fine.

A marine AC guy told me to look at the label on the compressor for LRA or Locked Rotor Amps and that will tell you how much power you need to get the compressor moving. You only need it for a fraction of a second and that’s where the Supco comes in. My old 5K btu unit needed over 3000 watts to start and the Honda just couldn’t do it.
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Parks Masterson
Retired from Hopkins-Carter Marine Supply
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