I have a 5 kw Kohler genset and three air conditioners on my catamaran
. They are all equipped with the same size 120VAC Cal
Pump (MS900), which reduces the number of spares kept on the boat. Each one is mounted in the bilge
just below the deck
plates and draws about 2.5 amps. I just replaced the one on the genset after six years of operation.
For the genset application, the pump has a conventional 15 amp plug
that can be connected to either the dedicated genset output receptacle or a receptacle fed by the inverter
. The latter is for when the genset shuts down due to overheating
because the strainer is full of grass. Running the pump off the inverter
for a couple of minutes facilitates cooling
the engine so that I can get it restarted quicker. Once it is running, I just replug the pump into the genset output receptacle. Have not had a problem with this configuration in more than 15 years.