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Old 05-03-2007, 05:39 PM   #1
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Carrier AC - Fan Speed

I have a Carrier 15,000 BTU AC that I installed on my 1976 A/S last year. Works and cools very well. My only complaint is the fan speed, high and higher and not very quite. A lower quieter fan speed would be nice. Is there any way to retrofit a lower fan speed switch?

Don
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Old 05-03-2007, 07:35 PM   #2
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Quote:
Originally Posted by adonh
I have a Carrier 15,000 BTU AC that I installed on my 1976 A/S last year. Works and cools very well. My only complaint is the fan speed, high and higher and not very quite. A lower quieter fan speed would be nice. Is there any way to retrofit a lower fan speed switch?

Don
Don,

You probably could, but you probably shouldn't!

Every RV roof A/C is designed to operate at a minimun CFM (cubic feet per minute) of cold air discharge. If this requirement isn't met, the result is usually evaporator ice-up. This happens from blocked ducts, intake air mixing with cool discharge air, and a number of other variables .

I'm certain that Carrier (and all the others) take this effect into account when they design their units.
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Old 05-04-2007, 08:19 AM   #3
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That's what I thought. To bad, this is the only thing that prevents the carrier from be a great AC unit. Even my old Armstrong before it bit the dust had a good low speed fan and from what I understand the Dometic Penguin is very quite and has a low speed fan.

Don
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