Load numbers for marine air A/C systems?

[willo]

Anyone have good numbers for marine air A/C units?
I'm wondering about start-up draw - aka soft start needed and overall loads.

I'm just napkin drawing systems in my head for the future sailboat and this kind of data would be lovely.

Cheers.

 

[RCinFLA]

If it has an AC powered compressor they have same startup surge. The unit's BTU size determines what power you need.

I did a write up on soft starters in one of forum's threads with some drawings of common start-cap boost/softstarters.

Soft Starters for Air Conditioners

Are you aware the DC-DC converter is limited to 70A output? Are you aware that the usable storage of the HV battery is almost exactly the same as the stock AGM 12V? This assume that the battery is brand new. Most packs are substantially below rated.

diysolarforum.com

 

[DDabs]

Check out Velair units. I have a new 16k btu unit on my boat and the variable compressor makes the loads extremely low. They are designed to be run off of inverters.

 

[Charlie Woods]

Anyone have good numbers for marine air A/C units?

These are the numbers you want. All A/C manufacturers publish them.
---------------------

LRA - Locked Rotor Amps: The current you can expect under starting conditions when you apply full voltage. It occurs instantly during start up.

RLA - Rated Load Amps: The maximum current a compressor should draw under any operating conditions. Often mistakenly called running load amps which leads people to believe, incorrectly, that the compressor should always pull these amps.

FLA - Full Load Amps: Changed in 1976 to "RLA - Rated Load Amps".

-----

Here is the label on the A/C atop my RV trailer with these specifications...

 

[Jodi]

Look up Mabru DC air conditioner in fort lauderdale they are pricey but are excellent systems

 

[willo]

I ended up getting a Velair 16k. The load numbers are impressive.