Country Coach Owners Forum Country Coach Motorcoach Forum

Roof Airconditioners

June 05, 2002, 07:05:16 am

Yahoo Message Number: 1990

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My wife and I have a difference of opinion on how we should operate our roof air conditioner.
When running the roof air conditioner, do you need to open the slates under the air conditioner a little to keep the A/C from freezing up or can you close the slates completely to get maximum air distribution through the roof vents?

Thanks for your help.
Art

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Re: Roof Airconditioners

Reply #1 – June 05, 2002, 08:25:10 am

Yahoo Message Number: 1991

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Art,

The "slate" directly under each roof air is called a "quick cool duct". You would open this to quickly cool the coach down. When this quick cool duct is open it is very noisey, so as soon as the tempature is acceptable you would close both quick cool ducts under each roof air and this will force the air out of the numerous other ducts / slates, and this will quiet down the noise. Hope this helps.

Damon

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Re: Roof Airconditioners

Reply #2 – June 10, 2002, 06:19:08 pm

Yahoo Message Number: 2068

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The way I understand the mechanics of freezing the main cause is reduced air flow across the coils. A dirty filter will contribute to freezing or maybe even too many closed vents in the coach. I think low refrigerant can cause freezing also....
So opening the "slats" on the A/C unit should reduce (or thaw) a frozen unit, as should any action that increases the air moving across the coils... i.e. higher fan speed, opening more A/C vents, open the slats. If you get a freeze-up (which can leak water into the coach on thawing), you can also put the unit on fan only to quickly thaw it.
These are my thoughts based on experience and my unprofessional opinion only. I pass this on since I didn't see anyone address that part of your post.

Dick May

2002 Intrigue, #11438
Member: CCI, FMCA

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