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05-28-2011, 07:00 AM
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#1
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Seasoned Camper
Join Date: Oct 2010
Location: Saint Charles
Posts: 86
M.O.C. #10832
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Adding the front AC. Which vent did they use?
I was pretty sure I was going to use the most forward vent as I was assuming that was what the factory would have done. I looked around here for pics but came up empty. Eithef directly above rear of bed or centered in front of the sink in the middle of the room.
2000 Montana 3255RL
Thanks... Gary
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05-28-2011, 07:39 AM
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#2
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Montana Master
Join Date: Apr 2009
Location: Murrieta
Posts: 5,816
M.O.C. #9257
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On my 2006 Monty, the outlet providing the 110v in the "second A/C prep" is next to the most forward vent, so your assumption is very sound. That's where it would have gone at the factory. However the vent is not connected to the existing ductwork which happens to be some distance towards the passenger side and more difficult than I would want to mess with. It can be done, but why bother, here's why:
I would put an independent A/C unit that drops air into the bedroom unit so that if more cooling is needed in the rig the bedroom area gets it all from this new unit. Being this room is somewhat elevated this air would also drop into the middle of the rig to provide some cooling. I would also try and find a way to cover the existing down vents in the Bedroom area to block them so that the rear A/C provides more air to the middle and rear living areas since this area gets its cooling from the new unit.
I have to say you guessed right!
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05-28-2011, 08:05 AM
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#3
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Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
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On our 2010, 3455sa, the dealer installed it directly above the bed in the vent.
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05-28-2011, 09:06 AM
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#4
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Montana Master
Join Date: Sep 2006
Location: Kelowna
Posts: 1,475
M.O.C. #6237
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You probably have to put in the living area as from other post I don't think they prewired the bedroom and if it is 30 amp the biggest you can use is 13500 BTU.
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05-28-2011, 03:31 PM
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#5
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Montana Master
Join Date: Nov 2002
Location: Midlothian
Posts: 956
M.O.C. #40
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Mine was installed by the factory and was in the vent over the bed. Dometic 13500 and I added the heat strip.
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05-28-2011, 04:44 PM
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#6
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,658
M.O.C. #9969
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Over the Bed, ducted into the main system, but has the quick cool face plate that when opened dumps 95% of the cold air onto the Bed.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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06-14-2011, 04:21 PM
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#7
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Seasoned Camper
Join Date: Jul 2005
Location: Erie
Posts: 53
M.O.C. #4082
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We had ours installed in our bedroom directly over the bed. The ac unit has to be installed on the vent that is wired and framed for an ac unit.
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06-14-2011, 05:30 PM
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#8
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Seasoned Camper
Join Date: Oct 2010
Location: Saint Charles
Posts: 86
M.O.C. #10832
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Mine is done. I used an extension ladder with my ladder hoist (good to 300 lbs.) Very neat little deal. I just backed up the pickup with the AC on it. Unpacked the box and ran the steel cable down from the ladder hoist making it go on all 4 sides before connecting the ring back to the middle. Hoisted it up and set it on cardboard. Had already removed vent and filled in screw holes with some Dicor earlier in the day. Slid it over the hole and tightened up according to factory instructions. Went down inside the camper and made sure of positioning and then tightened plate. Assembled and connected to #12 2 wire with ground Romex wire and ran wire to sub-panel I had replaced 230 wire supply to dryer with. Previous owner had ran 3 wire, #10 copper with a ground Romex to 30 amp dryer receptacle. I put the sub-panel there in its place, running the supply wire through on to a new dryer receptacle. (no additional breaker since it was originally already protected by the two pole breaker at the front subpanel from factory.) I did add 4 breakers, using only one of them for the 20 amp service asked for by the new air conditioner knowing I can't run both at the same time without kicking the breaker. I may add another duplex receptacle in that room since it's across from the sink for hair dryers, etc. when the dryer isn't being used. I have pictures of the whole installation and may post them up here when I get a chance. The way this is set up you can definitely run both of the AC's at the same time any time you are tied up to a 50 amp service. The dryer is taken out anyway when you only have a 30 amp hookup. I feel it's very safe since it didn't actually negate the coverage of the breaker but simply added an extra circuit for the 11,000 BTU, 9 amp AC on a smaller breaker for use when not using the dryer, mainly at night when you wouldn't think of running the dryer in the same room. If you manage to try to run both you'll simply trip the 230 VAC breaker in the front that is run in the proper size of wire to the dryer.
G..
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06-15-2011, 05:29 AM
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#9
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Montana Fan
Join Date: Dec 2010
Location: North Port
Posts: 271
M.O.C. #10954
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Your gonna love that new AC up there! I know we love ours!
__________________
2021 Montana 3121RL w/ Cobalt Paint
2019 F-450 w/ airbags and 25k BW Companion
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06-15-2011, 08:04 AM
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#10
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Montana Master
Join Date: Apr 2009
Location: Murrieta
Posts: 5,816
M.O.C. #9257
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Nice! Mine is prewired but it would be great if you posted pictures. I can always appreciate someone else's handiwork.
Now you can camp in Death Valley in summer as long as you can find 50 amp (or bring your own). Okay, okay, maybe not Death Valley in summer, but certainly most of the other popular places in summer when it's not.
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06-16-2011, 12:42 AM
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#12
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Montana Master
Join Date: Apr 2006
Location: Brownsburg
Posts: 1,186
M.O.C. #5634
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Nice looking install Gary. Since that is not a low profile A/C don't forget you have added another couple of feet to your total height of the rig. You will need to be more mindful of that going down the road.
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06-16-2011, 03:33 AM
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#13
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Seasoned Camper
Join Date: Oct 2010
Location: Saint Charles
Posts: 86
M.O.C. #10832
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Never really thought about it. I'll give it a measure so I know. It's only about 12 inches tall though so a couple of feet would be an overkill. I kind of expected it to be smaller too but it's supposed to be a high efficiency 11,000 BTU but it seems to be almost as high as my 15,000 so I guess the extra coil the high efficiency units have is coming into play.
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