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07-06-2017, 04:39 PM
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#1
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Senior Member
Join Date: Mar 2015
Location: Dickinson
Posts: 481
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Older A/C Mods for better performance
There was a thread quite awhile back about how to get better performance from our roof top ac/c units. Mine are working good but I wanted to find the post, if you have it could you please post the link for me. I remember it involved insulating some of the tubing on the unit and adding some type of heat deflector material.
I have searched and can't find it, thanks in advance.
__________________
2015 Pinnacle 36FBTS w/Anderson Ultimate Hitch
2015 F250 SD Platinum 4x4 - 6.7L PSD
Titan 50 Gal. Fuel Tank
Slotted and Dimpled Brake Rotors
Air Lift LoadLifter 5000 Ultimate Airbags with WirelessAIR Controller
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07-06-2017, 05:01 PM
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#2
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Senior Member
Join Date: Jan 2016
Location: Magnolia
Posts: 4,841
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I did it to mine. I think i posted it in the mods to 377 thread.
Basically you add extra pipe insulation to the exposed copper lines and wrap the inner "box" with reflectix.
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2016 North Point 377 RLBH, with a few mods, disc brakes, shocks, Sailun g rated tires, wet bolts
2014 Ford F350 Platinum sold
2017 Ford F350 Lariat, CC, 6.7PSD, DRW, Trailer Saver BD3 hitch
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07-06-2017, 05:11 PM
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#3
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Senior Member
Join Date: Mar 2015
Location: Dickinson
Posts: 481
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Quote:
Originally Posted by Magnolia Tom
I did it to mine. I think i posted it in the mods to 377 thread.
Basically you add extra pipe insulation to the exposed copper lines and wrap the inner "box" with reflectix.
Sent from my iPhone using Tapatalk
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Thanks for the response.
Do you feel like it made a difference?
Mine are working real good I just thought a little extra couldn't hurt.
__________________
2015 Pinnacle 36FBTS w/Anderson Ultimate Hitch
2015 F250 SD Platinum 4x4 - 6.7L PSD
Titan 50 Gal. Fuel Tank
Slotted and Dimpled Brake Rotors
Air Lift LoadLifter 5000 Ultimate Airbags with WirelessAIR Controller
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07-06-2017, 05:17 PM
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#4
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Senior Member
Join Date: Jan 2016
Location: Magnolia
Posts: 4,841
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My ACs were new. I don't think it made that much difference to be honest but I already had all the supplies laying around so I figured I couldn't hurt. I think it works best on older units. Don't forget to seal all your seams/joints on the box with foil tape. That way all the cold air doesn't escape
Sent from my iPhone using Tapatalk
__________________
2016 North Point 377 RLBH, with a few mods, disc brakes, shocks, Sailun g rated tires, wet bolts
2014 Ford F350 Platinum sold
2017 Ford F350 Lariat, CC, 6.7PSD, DRW, Trailer Saver BD3 hitch
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07-06-2017, 05:26 PM
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#5
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Junior Member
Join Date: Apr 2016
Location: Oklahoma City
Posts: 22
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07-06-2017, 06:15 PM
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#6
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Senior Member
Join Date: Mar 2015
Location: Dickinson
Posts: 481
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Quote:
Originally Posted by dewey405
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Thanks Dewey405, that's the same info. Different forum but exact same info.
Thanks again
__________________
2015 Pinnacle 36FBTS w/Anderson Ultimate Hitch
2015 F250 SD Platinum 4x4 - 6.7L PSD
Titan 50 Gal. Fuel Tank
Slotted and Dimpled Brake Rotors
Air Lift LoadLifter 5000 Ultimate Airbags with WirelessAIR Controller
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07-06-2017, 09:59 PM
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#7
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Senior Member
Join Date: Nov 2014
Location: Florien, LA
Posts: 1,872
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Here's another bit of a crazy mod that I've done in the past. This was on our 40' / 4-slide rig with 2 dometic 15k units. This improved the air flow, or cfm. The teepee directs air flow directly to the ducts instead of the air turmoil in the distribution area, thus more directed / efficient air flow off of the blower. It kind of deems your quick cool useless, but we were full timing in this one, so we didn't need the quick cool feature. We've also took pipe insulation, or pool noodle type stuff and blocked ducts off at the end of a duct run. Never know if they sealed the end good or not, so we made sure. On our class C, it was obvious the duct run was leaking at the end, so blocking the duct off just after the last register proved to work.
I never understood the circular / race trace dual duct system. It's more of a sales gimmick than an effective system in reality. Either way, the 40' rig would maintain 70 deg in 100 deg direct sun, only AFTER these modifications.
On our present rig, not necessary. The mods we've done so far have helped us maintain 70 in 100 deg direct sun.
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John and Rebecca Dickson
Emma-13 / Little John-10 / Iva-7
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)
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07-07-2017, 11:15 AM
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#8
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Senior Member
Join Date: Mar 2015
Location: Dickinson
Posts: 481
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Thanks BigJohn, sounds like useful info. I would have never thought of blocking the ends of the duct runs, just in case.
__________________
2015 Pinnacle 36FBTS w/Anderson Ultimate Hitch
2015 F250 SD Platinum 4x4 - 6.7L PSD
Titan 50 Gal. Fuel Tank
Slotted and Dimpled Brake Rotors
Air Lift LoadLifter 5000 Ultimate Airbags with WirelessAIR Controller
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