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Old 07-22-2006, 08:34 PM   #1
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Recharged AC

I would like to get the AC recharged with refrigerant. Can this be done and if so do I just call a normal A/C guy (as in one that services a home ac) or is there some body better to contact?
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Old 07-23-2006, 06:41 AM   #2
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Not Cool

I belive the roof AC's are sealed and cannot be recharged.

Michael
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Old 07-23-2006, 07:01 AM   #3
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They can be recharged, but it is a pain to do so. Valves and ports will need to be added. If it needs recharging, that means there is a leak somewhere, that needs repair. It may be cheaper to buy a new unit at that point.
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Old 07-23-2006, 07:04 AM   #4
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They can be recharged, but it is a pain to do so. Valves and ports will need to be added. If it needs recharging, that means there is a leak somewhere, that needs repair. It may be cheaper to buy a new unit at that point.
Adding the ports is not a big deal, the replacement ports consist of a pair of valves with a piercing pin, and clamp. Installation is usually around 2 minutes. The trick is finding someone willing to do it. A (very) small leak could be taken care of by recharging, but any more than that would need repair, and most A/C repair people don't want to mess with RV air.
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Old 07-23-2006, 07:28 AM   #5
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Quote:
Originally Posted by jimsease
I would like to get the AC recharged with refrigerant. Can this be done and if so do I just call a normal A/C guy (as in one that services a home ac) or is there some body better to contact?
Jim,
If you have the orginal Armstrong Bay Breeze they can be worked on. Most RV shops are not going to want to work on them. I have had good luck using a commercial referigeration shop, but I know the owner and am willing to pay his hourly fee. A normal A/C guy should be able to work on it, whether they want to or not is another story. If for some reason you have one of the newer Coleman or Duo-Therm units, you might as well figure on replacing it...

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Old 07-23-2006, 09:06 AM   #6
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Originally Posted by jimsease
I would like to get the AC recharged with refrigerant. Can this be done and if so do I just call a normal A/C guy (as in one that services a home ac) or is there some body better to contact?
Not all AC guys are qualified to service your unit. It would be considered a type 1 small appliance. a type 608 certification is required. Clamp on valves are needed to remove the refrigerant. The system should be leak tested and repaired. The clamp on valves should be replaced with brazed fittings or they will leak over time. In my book it is usually a better value to replace an older unit.


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Old 07-23-2006, 09:39 AM   #7
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Jim,
If you have the orginal Armstrong Bay Breeze they can be worked on. Most RV shops are not going to want to work on them. I have had good luck using a commercial referigeration shop, but I know the owner and am willing to pay his hourly fee. A normal A/C guy should be able to work on it, whether they want to or not is another story. If for some reason you have one of the newer Coleman or Duo-Therm units, you might as well figure on replacing it...

Aaron
Aaron, you hit the nail right on it's head. RV places just want to sell you a new AC rather than diagnose your AC problem. When I purchased my '77 Excella 500 with Armstrong Bay Breeze AC, the PO said it was low on freon because it was not blowing cold air. I had a friend with AC experience come to the house and check the unit. It was just a little low so he topped it off. The real culprit was the 115volt to 24 volt transformer that sent a signal down to the thermostat inside the trailer and back up to the compressor. It was only showing 9 volts coming out of the transformer and 0 at the thermostat. I went to an electrical supply house, matched up the transformer, mounted it and the compressor started right off. Man that Bay Breeze could run you out of the trailer it got so cold.
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Old 08-10-2006, 08:38 AM   #8
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That transformer is available at Radio Shack for $10. It's a 10 to 25V transformer, you use the two outer leads on the 24V side, tie off the center. Alas, this fix only got my compressor problem out in the open. Anyone know who would "top up" an Armstrong on short notice near Kansas City MO? Looking for a temp fix untill I rep-lace it. My compressor labors, hammers & shuts down, barely cooling the unit. Parts available for helpful people!
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