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Old 08-15-2016, 10:20 PM   #15
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As I described above the transmission cooler was moved and the old condenser replaced. The dryer had a unique connector and I made a new hose. The hose from the compressor also had a metric thread so I modified the existing fitting to mate with the new condenser. It's not a job for someone with little a/c experience as the system is changed quite a bit. The results were worth the effort because the a/c now blows cold instead of cool. If you want photos contact me and I'll be happy to help.

Would be great to see the photos on that.
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Old 08-17-2016, 05:12 AM   #16
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Maybe a YouTube video? Many people, including myself, would love to see how you improved the operation of the AC with your modification.
This sounds like a fix for my issue also.

Thanks!
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Old 08-17-2016, 09:35 AM   #17
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Maybe a YouTube video? Many people, including myself, would love to see how you improved the operation of the AC with your modification.
This sounds like a fix for my issue also.

Thanks!
Here are the photos I took with my phone. We hung a thermal curtain behind the seats using a spring tension rod and it keeps us really cool even last week when we made a trip to the Big Bend in far southwest TX. with temps over 100 degrees. I did not use the roof a/c at all while driving. The temp in the back was hot but we stayed cool. Before the mods that would never have been the case. I would need the generator and roof a/c going to stay cool.
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Old 08-17-2016, 10:17 AM   #18
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How much did your mood change the amount of Freon charge?
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Old 08-19-2016, 06:39 AM   #19
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How much did your mood change the amount of Freon charge?
I'm guessing the old tube & fin condenser that was replaced uses about the same amount of 134a as the new parallel flow condenser which has 4 or 5 smaller orifices. I did not weigh the coolant, just watched the gauges as I filled the system. I used 3 12oz. can of 134a and the low side was just under 30psi while the high side was 190psi. The outside temp about 80 degrees when I filled it in the early morning. The dash output air was reading a 27 degree drop from the return vent. It may take a little more coolant but I did not want to go back to the supplier for another can knowing it would not need a full can. I am happy with the current performance. Long story short, the original design was probably ok with the old freon but not very effective with 134a which is less effective removing heat.
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Old 10-04-2016, 06:58 PM   #20
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My dash air works decent but trying to cool 35' of motorhome at 95 degrees outside temp just ain't happening. I installed a curtain just behind the driver-pass seat that extends from ceiling to floor, similar to that in a large sleeper cab truck. That made all the difference in the world as now it is cooling an area that is of realistic size for the volume of air a dash unit is capable of.
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Old 10-14-2016, 06:55 PM   #21
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My dash air works decent but trying to cool 35' of motorhome at 95 degrees outside temp just ain't happening. I installed a curtain just behind the driver-pass seat that extends from ceiling to floor, similar to that in a large sleeper cab truck. That made all the difference in the world as now it is cooling an area that is of realistic size for the volume of air a dash unit is capable of.

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Old 11-18-2016, 11:32 AM   #22
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great site for ac info....thanks
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