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Like others here I have a pre-1995 coach.The air conditioning systems,roof and dash need a little help.My question is has anyone tried R-416a as a drop in replacement for R-12.Was the change over successful or did you have problems? | ||
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 8/10 |
Eric, I replaced both of my roof airs last summer. My older units still cooled well but they were noisy and OLD (vintage 1995). I bought 2 new units on EBAY, a 13500 and 15000 for $1250 (I think) and then sold the old but still functioning units for $275 each ($550) on craigslist...total net cost of around $700. I would caution about spending much on repairing them.... By the way, the new units are 410A I think...and it's an easy 2 man, 4 hour job to swap them out...good Saturday morning project.... K | |||
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 2/16Captain Doom  |
I converted my '87 Ford 1T van to R134a, and there is no discernible difference in cooling. My Breakaway is on an early '92 chassis, and is stock with R134a. I think the old roof units use R22 (standard for residential units). Your dash air could be R134a. Rusty  "StaRV II"'94 28' Breakaway: MilSpec AMG 6.5L TD 230HP Nelson and Chester, not-spoiled Golden Retrievers Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke It was a woman who drove me to drink, and I've been searching thirty years to find her and thank her - W. C. Fields | |||
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| 8/09 |
Remember these are sealed systems (like almost any A/C), not designed to need recharge. There's a leak if so. My dash A/C has never worked, and I don't find any reason to use it. It would do very little to cool the large interior on a hot day, and I'd rather keep the extra load off the engine (by keeping dash A/C turned off) and run both roof A/C's on the generator while driving. | |||
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| 8/10 |
Can't a service tech put a "tap" in the line and add the freon? One of my old roof airs had what I thought was a tap on it. Also, R12 has come down in price somewhat and might still be cheaper to add a few ounces of the R12 than convert over to something new... | |||
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R-12 is running 20/25.00 for a 14oz can and around 500.00 for a "sealed" 30lb container.I used to buy it legally for about 100.00 a 30 lb can of DuPont.Rather than stay with a vanishing resource,I thought I would change over to something more current. | |||
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What initiated this is that I have a non-ic engine.So,in my infinite wisdom I decided to add a charge cooler.Well,to do that without modifying the the rear access door,I have to separate the radiator stack which means a freon recharge as I am moving the condenser. | |||
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| 4/08 |
Not certain which coach you have, but it looks like a diesel pusher. On the Breakaway the condenser is on the lower left hand side near the rear. Not in the radiator stack. I use a product call enviro safe to replace the R12. Seems to work fine. I do have the same problem as others here, in it shutting down. '92 Barth Breakaway - 30' 5.9 Cummins (6B) 300+ HP 2000 Allison Front entrance | |||
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wally vancouver island-r-416a is a blend and has to be introduced as a liquid to benifit from all the goodies. | ||||
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Thank you Wally,you da man.When you added/replaced the freon which fittings were on your gauges,the r-12,134a,or is there a new coupling for the 400 series? Gary you are correct,mine is a 160hp,at542,Dana 80 pusher.And I am still looking for an early 2000 series Allison for a changeover. | |||
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