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Old 06-23-2005, 10:37 AM   #1
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Hello, forum.

Just a curious question (I seem to have an idle mind today): have any of you Scottsdale/Workhorse owners (or Newmar/Workhorse owners, for that matter) opted for the Workhorse auxiliary air conditioner condenser? If so, tell us your story: why did you do it, how/where was it installed in the coach nose cap area, and was it worth the effort/cost? Any impacts to serviceability under the "hood"?

Why am I asking? Well, I noticed the other day that the refrigerant sight glass on top of the filter/dryer was full of foam. Charging additional R-134a made the low side pressure go up unacceptably, but did not clear the sight glass. So I bled off the excess refrigerant to get the pressure back down to normal levels. Since the cooling performance isn't very good (but improves when the vehicle is in motion) either there is a lot of air in my system or the stock condenser is inefficient.
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Old 06-23-2005, 10:37 AM   #2
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Hello, forum.

Just a curious question (I seem to have an idle mind today): have any of you Scottsdale/Workhorse owners (or Newmar/Workhorse owners, for that matter) opted for the Workhorse auxiliary air conditioner condenser? If so, tell us your story: why did you do it, how/where was it installed in the coach nose cap area, and was it worth the effort/cost? Any impacts to serviceability under the "hood"?

Why am I asking? Well, I noticed the other day that the refrigerant sight glass on top of the filter/dryer was full of foam. Charging additional R-134a made the low side pressure go up unacceptably, but did not clear the sight glass. So I bled off the excess refrigerant to get the pressure back down to normal levels. Since the cooling performance isn't very good (but improves when the vehicle is in motion) either there is a lot of air in my system or the stock condenser is inefficient.
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Old 06-23-2005, 12:30 PM   #3
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Mahlon, It didn't cost me any money, Workhorse sent the kit and I had the kit installed at an authorized Workhorse facility. When stopped at a traffic signal or just stopped hardily any air conditioning, even when in motion the air conditioning wasn't that effective. The kit is mounted inside the front cap in front of existing radiator, it did the job very effective, cooling even better than I had anticipated. Ed.S
P.S. the kit was put on my 2002 Newmar Mountain Aire, Newmar had several years where that kit was prescribed to fix that particular problem, the years 2002 & 2003 being those. Ed.S
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Old 06-27-2005, 06:57 PM   #4
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I had the auxillary AC condenser installed when it was first offered by Workhorse. From my understanding this unit helps keep the head pressure down in the compressor, prolonging its life. The set price from Workhorse was reasonable considering the going rate for labor. As far as increasing the the cooling affect of the unit I believe it is cooler. I was more interested in a longer life for the AC compressor. Workhorse set up the installation with the dealer I chose and it went in without any problems.
2005 Newmar Scottsdale 3456
Henderson Super-Steer Track Bar
Factory Installed Bilsteins
Safe-T-Plus Steering Stabilizer
18" VIP Steering Wheel
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Old 07-13-2005, 01:17 PM   #5
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Saw the aux condenser installation in a Damon the other day. It simply installs in place of the "stock" condenser and fans, and is not installed in addition to the stock condenser. Bottom line: I wannit! Would have come in handy in the desert the past couple of weeks.

On a related note, I had to replace the a/c compressor last week (the bearing froze up). AFter that, I discovered that the foam in the sight glass was gone, leading me to believe that there was air in the system. Works much better now.
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