Working on my A/C - Dutchmen Owners

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Old 03-27-2014, 01:11 AM   #1
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Working on my A/C

I previously re-taped the a/c vents so today I worked on the bedroom and garage a/c. There are two ducts coming off the bedroom a/c and the taping job was pathetic. To help with the re-taping, I removed two of the long bolts holding the unit to the roof, which were in the way. I found them (all four, actually) to be only hand tight! It was a fairly easy job to re-tape the duct area and the central piece that separates the intake air from the out-going air. I didn't put extreme torque on the four attaching bolts but snugged them down much better than Voltage did. Bedroom air seemed to blow better after the re-taping.

I didn't find any issues with the garage a/c. It's a standard down-draft and not hooked up to the duct system.

Hopefully tomorrow I'll get up on the roof and tackle the middle a/c.
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Old 03-27-2014, 02:23 AM   #2
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Way to go, should be a simple task. Been there done that. Others as well. I experienced a noticeable difference for the good.
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Old 03-27-2014, 04:05 AM   #3
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I'll post back here what I find when I take the middle a/c off.
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Old 03-27-2014, 04:13 AM   #4
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I have to do the same with my Infinity 3750 before it gets hot. I re taped the vents which were done properly from the factory. The unit was taken in to CW for repair of the AC and they claimed they fixed it but it still blew a lot of cold air out side of the ducts as I could take the ceiling lights out in the bedroom and have cold air pour out.
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Old 03-27-2014, 07:01 PM   #5
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Well, this morning I got up on the roof and pulled the middle a/c unit and found the tape job, again, to be pathetic. The duct area was vacuumed and new tape applied several layers deep as I don't want to mess with it again. The a/c was reattached and the system checked. Having the duct work sealed up caused the remaining saw dust in the ducts to blow out through the vents. I am now getting real good air flow. C'mon summer, I'm ready.
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Old 03-27-2014, 09:27 PM   #6
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For everyone that has the ability to retape the air ducts in the ceiling and also, pull the air conditioning unit and tape the interior duct, just do it. What a difference.

For those that cannot, I'm concerned that your dealers are going to come up with all kinds of ideas other than the obvious.

The people at Dutchmen slapped the duct work together and didn't do their job correctly. I might add, they did poor duct work on the heating ducts, also. I fixed that with aluminum tape, too.

It'll be worth the effort, Mach72. It'll make a difference.
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Old 03-27-2014, 11:08 PM   #7
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Might I add, pulling the a/c is a real easy and quick. 6 screws removes the cover and 4 lag bolts removes the entire unit. The time consuming part is the taping; I took my time but was done with everything before lunch.
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Old 03-27-2014, 11:47 PM   #8
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Quote:
Originally Posted by azdryheat View Post
Might I add, pulling the a/c is a real easy and quick. 6 screws removes the cover and 4 lag bolts removes the entire unit. The time consuming part is the taping; I took my time but was done with everything before lunch.
I'm sure it's been covered before. But what tape is required. I might look at mine tomorrow before the heat sets in. Although, I'm not sure how much air flow one can get from 1 AC feeding 9 ducts. I'm pretty sure it won't be enough to cool a 42' long trailer with 3 slides. I'm glad I have 3 AC's.
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Old 03-28-2014, 12:06 AM   #9
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I used the aluminum tape specifically made for metal duct work. You can find it any of the big box lumber stores.

Just make sure you clean the duct of debris (saw dust) that was left during installation that the Dutchmen @$#%s left.

I made sure that I sealed all seams within the air flow area beneath the air conditioning unit. I had previously done all the duct vents previous to getting on the roof and doing beneath the air conditioner. My other air conditioner is direct vent so I didn't have to do that one.
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Old 03-28-2014, 12:27 AM   #10
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Well, I was just up there and removed the cover and the 4 lag bolts. I lifted on the AC unit and it did not want to come up easily. I put it all back to together.
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