How well does the A/C work in R29?

[Someday*]

Living here in SW Florida I am curious if anyone has experience with the A/C in one of our brutally hot summers?

 

[ethanbarnett]

AC has done fine. Do make window shades for the roof glass ie windshield covers cut to fit. Also if on the hook be sure to have a spare capacitor for the generator.

 

[Someday*]

AC has done fine. Do make window shades for the roof glass ie windshield covers cut to fit. Also if on the hook be sure to have a spare capacitor for the generator.

On the sea trial today the broker said both a/c units can’t be run (for long) on the generator?

 

[Alpina]

AC has done fine. Do make window shades for the roof glass ie windshield covers cut to fit. Also if on the hook be sure to have a spare capacitor for the generator.

On the sea trial today the broker said both a/c units can’t be run (for long) on the generator?

North of you on Lake Lanier in Georgia, where it can get pretty hot in the summer.

* The boat should have a 3.5 kW generator
* The front A/C is a 12k BTU and the rear is a 16k BTU
* Per the manual the average load is 8.5A (1020 W) and 11A (1320W).
* In theory you can run both A/Cs.

Here’s my personal experience. I have run both A/Cs for long periods of time but also have had the breaker trip on on unit while running both. The true peak load to get the compressor starting is much higher so I speculate that it causes an overload on the generator and causing the A/C breaker to trip. To avoid this, I keep the thermostat very low on both units to keep the compressors running constantly to avoid the peak load. It’s happened on occasion so I wasn’t taking notes on the specific conditions under which this happened ... just remembering.

The boat is a big greenhouse so keeping the UV light out will help tremendously. Over the winter, I bought 70% and 90% sunshade and made custom fit window covers which I can still see through. For the roof, I made them from 90% and installed them in conjunction with the canvas that came with the boat. I can’t see above me, but I’m OK with that. Works great. Here are some pics of the work in progress. It was getting dark out so it appears that you can’t see outside but you can from the galley window. I’ve made covers for all glass including hatches except for the port holes and front windshield. While summer is still far away, I’ve been out on sunny days and they help cut down the warmth from the suns rays.

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[Someday*]

Hmmm...that's curious about "sorta" being able to run both A/C's with the existing generator size.

I'm assuming the main engine has nothing to do with powering the A/C units...just shore power and the generator correct?

 

[Alpina]

Hmmm...that's curious about "sorta" being able to run both A/C's with the existing generator size.

I'm assuming the main engine has nothing to do with powering the A/C units...just shore power and the generator correct?

Correct. Shore power is not an issue as you have a dedicated circuit for the A/C units. You need the generator while underway or at anchor. The short power is 30A and the veneer puts out 29A but shore power can supply additional amperage for the brief period required to start the compressor.

I have run both A/Cs but you are operating near the upper band of the generator’s capability. Just don’t want you to think that it’s a no brainer. At least my experience and seems like the broker’s also.

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[Someday*]

thank you Alpina!

 

[gwishon]

The few times I’ve run both A/C units on the generator, all worked fine. 2015 R29 with the NexGen generator.

Gordon