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08-12-2013, 01:05 PM
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#1
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Junior Member
Join Date: Dec 2012
Location: South Carolina
Posts: 16
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Two questions
We have a 2012 Keystone Montana 3400RL. It has the second air conditioner. Is this unit ducted or is the main outlet grill on the unit the only outlet? Second question. We had a little water on the floor in the bedroom at the base of the slide. It was between the closet and the bed. Looked at the slide rubbers and checked all calked joints. All were okay. Any help would be appreciated.
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08-17-2013, 07:46 AM
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#2
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Junior Member
Join Date: Dec 2012
Location: South Carolina
Posts: 16
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Two questions
Stopped at CW in Statesville, NC. The water problem is fixed. Hopefully there is no permament damage.
Still looking for answer to 2nd A/C unit. The literature says it is ducted. When I remove the cover I don't see any ducting and when I close the outlet on the unit, no air flow at the ceiling outlets.
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08-17-2013, 10:02 AM
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#3
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Junior Member
Join Date: Dec 2012
Location: South Carolina
Posts: 16
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2nd A/C unit
Previously had no luck with an answer to Two Questions. Fortunately, stopped at CW in Statesville, NC and they found the water leak.
Still have a question on 2nd A/C united. It says ducted. Took cover off and could see no evicence of duct work. Is this unit ducted or is the outlet on the unit the only way to operate it?
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08-17-2013, 10:25 AM
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#4
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Site Team
Join Date: Jun 2009
Location: Venice
Posts: 5,346
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John, I have merged and moved your threads to this forum so more folks with similar trailers may see it.
Most likely your main A/C unit (living room) is ducted through the entire trailer. If you run this unit you should get air flow through all your ceiling vents. Your bedroom unit (optional) may in fact be able to be ducted but since it was added after the trailer was built is not. Having both units force air into same vents would not work. Perhaps someone with the same setup can advise you on how to best utilize it. Travel safely, Hank
__________________
Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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08-17-2013, 03:22 PM
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#5
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Senior Member
Join Date: May 2011
Location: Virginia Beach
Posts: 175
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Front "added air" would not be vented.
__________________
2019 Montana HC 331RL
2017 F250 Super Duty Crew Cab
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08-17-2013, 03:58 PM
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#6
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Member
Join Date: Mar 2012
Location: Ione WA
Posts: 85
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Alpine is a little different from Montana?? We have factory front air. Far as I can tell it is not ducted. Air only flows thru the vent on the unit. Main unit does blow air thru the roof vents in bedroom and bathroom.
__________________
2007 Chevy 3500 Dually Duramax Allison
2013 Keystone Alpine 3555rl, Onan 5500, Directv Dish
2004 Everest 364Q
2005 Larado Bunk House TT
2004 Komfort TT
1973 Kenskill TT
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08-17-2013, 04:58 PM
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#7
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Junior Member
Join Date: Jun 2013
Location: Augusta GA
Posts: 9
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We have a 3402RL and it came with two A/C's. Both are ducted and we have operated both at the same time with no problems as long as you have adequate power supply.
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08-17-2013, 05:07 PM
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#8
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Senior Member
Join Date: Mar 2011
Location: Washington State
Posts: 859
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Quote:
Originally Posted by Vet4jdc
Front "added air" would not be vented.
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X2 with the rear ac, it is ducted clear to the front so therefore the front is not ducted to push the opposite direction
__________________
Ron
99 Freightliner FL70 Western Hauler CC 300 HP Cat/Chipped/ Allison Auto
12 Montana 3800RE/Level-Up Auto Leveling/Slide Toppers/MorRyde Hitch/VuQube 2000
01 F350 7.3 PSD Crew Cab DRW 4X4 6 Speed/Chipped
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08-18-2013, 04:46 AM
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#9
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Senior Member
Join Date: Sep 2009
Location: North Carolina
Posts: 1,037
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My 2nd air is not ducted. it dumps straight into the bedroom. The main unit ducts into the bathroom and bedroom.
The 2nd air is like those found in popups but it has 4 outlets, front and rear and both sides. it does have a straight down dump flow for quick cool and it works great with both units running to cool down the camper in the summer heat. It also helps cool the bathroom.
randy
__________________
Randy "Camp On"
2011 Cougar 327RES
2014 Ford F-350, 6.7L 4X4, CC, SRW
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08-18-2013, 05:38 AM
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#10
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Junior Member
Join Date: Jun 2013
Location: tomball, tx
Posts: 4
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My Montana front and rear share the duct system. Both will blow air out of all ducts. Some are set up that way from the factory, some are not. If your unit was not set up for ducted install at the factory, then you will just have the front unit blow into the bedroom only.
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08-18-2013, 06:42 AM
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#11
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Senior Member
Join Date: Mar 2012
Location: Pickens, SC
Posts: 326
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OK My 2$c We have a 2012 Avalanche with factory installed 2 a/c. Main unit in livivng area is ducted and also has Quick cool vents to open for the living area. The second unit in the bedroom is not ducted. I personaly have never seen both units ducted into a commond duct.
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08-18-2013, 08:13 AM
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#12
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Junior Member
Join Date: May 2013
Location: Maine
Posts: 11
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I have a 2013 Alpine with factory installed 2nd unit and it is ducted. If I close off the large cooling vent on the unit itself it will force the air throughout the entire unit even with the #1-primary A/C off.
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08-18-2013, 08:50 AM
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#13
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Senior Member
Join Date: Aug 2012
Location: Waco, Tx
Posts: 5,457
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IMHO the bedroom A/C should not be ducted to the rest of the trailer nor should it be connected to the main thermostat.
__________________
2015 Ford F350 DRW 6.7 Diesel XL
2020 Avalanche 313 RS
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08-18-2013, 09:46 AM
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#14
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Site Team
Join Date: Jun 2009
Location: Venice
Posts: 5,346
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Two A/C units sharing the same ductwork will not allow sufficient air flow to keep the units from icing up. Most RV ducts are not sized large enough for one A/C so two is out of the question. JM2¢, Hank
__________________
Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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08-18-2013, 10:14 AM
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#15
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Junior Member
Join Date: May 2013
Location: Maine
Posts: 11
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All I can say is my unit has both A/C's sharing the ductwork together and I seem to have no problems running either unit alone or simultaneously. I do however have a duel zone controller connected to two thermostats, one in the main living area and one in the bedroom. Mine is a 2013 Alpine 3600RS.
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08-18-2013, 10:30 AM
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#16
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Junior Member
Join Date: Jun 2013
Location: Augusta GA
Posts: 9
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Quote:
Originally Posted by dmichael
All I can say is my unit has both A/C's sharing the ductwork together and I seem to have no problems running either unit alone or simultaneously. I do however have a duel zone controller connected to two thermostats, one in the main living area and one in the bedroom. Mine is a 2013 Alpine 3600RS.
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Mine works the same way. (2013 Montana 3402RL). The only difference is that I only have one thermostat but it controls both A/C units individually.
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