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Old 07-02-2008, 03:26 PM   #1
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1986 32' Excella
vledder , drenthe
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AC cools a liitle but not cold

The original AC on my 86 exella cools not enough.
could it just be low on refridiant and can I fill with the bottle's with leakstop that there are for sale for cars ?
How importand is the type of coolant?
In a car you can just fill the sysatem with liqued propane and it works fine.


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Old 07-02-2008, 03:30 PM   #2
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What brand is it? If it's a Coleman, you may have to replace it. There are no servicing valves on RV air conditioners, as a rule. You can install piercing valves, but those leak most of the time. Cost to have this done can approach pricing on a new unit. But if your an HVAC guy, have all the equipment and R22, you may be able to save some bucks.

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Old 07-02-2008, 03:53 PM   #3
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First thing I would check is the coils to be sure they are clean. If not clean them with coil cleaner and get a good air flow.

It is unlikely you have a low charge. Low charge would result in ice on the coils and the air flow would stop.

If you can remove the cover and while the AC has been running for at least 5 min. feel the suction line, the large one. It should be cold, ideally it should have water on it if the humidity is high. If it is dry and warm the compressor may have a valve leak pushing warm gas back into the suction line. This would cause poor cooling.
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Old 07-02-2008, 04:52 PM   #4
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1986 32' Excella
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instaling servicing valve would be no problem.
I will do the test on the compressor.
I'm familiar with the automotiv AC systems but this is unknown to me.
If the compressor is gone can I replace it with compressor that I find in the large restourant walk in fridges?
If I look at the power consumption they are about the same
A compressor from a normal refridgirator will be way to small.
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Old 07-03-2008, 06:13 PM   #5
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1986 32' Excella
vledder , drenthe
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I looked @ ebay for a new AC
A coleman 15000 btu for around 550 usd.
For a 5500 btu we have to pay around 2400 usd here in holland.
I think I order one is the US even with shipping and tax it will be only about half of what we have to pay here.
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