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From: A Jensen (no email)
Date: Wed Aug 04 2004 - 14:01:50 EDT
Rich Gano wrote:
I may have to downsize the new A/C unit to fit the power available,
I really do not want to introduce 240VAC and 50-Amp cabling etc to this
32-year old GB woodie.
REPLY
When looking at available air conditioning systems, keep in mind that not
all of them are created equal.
One of the biggest names "Marine Air" doesn't bother with soft start and
they do not have the most efficient compressors that modern technology can
ofer.
A smaller company called Mermaid in Fort Meyers FL did a lot of research
to find the most efficient compressor with soft stat.
The difference in power comsumption, not to mention size of genset needed to
start the air conditioning is considerable.
Mermaid now sequences the start of the cooling water circulation pump and
the main compressor to reduce even further the start surge. Large diameter
hose and pipe for the cooling water also helps reduce the amountof current
drawn.
This is something worth considering when trying to air condition a boat with
limited amounts of AC power available.
Quite often the large volume "name brand" products are relying on their
market presence to sell their product instead of actual technical merit.
They don't really care about refinements. They are driven strictly by sales
volume and the non discriminating buyer who accepts "national name brands"
simpoly because they are there, ends up paying the price down the road in
terms of operating costs and also in terms of greater cost to delive the
energy for such power hungry appliances.
Regards
Arild
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