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05-16-2020, 06:27 AM
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#29
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Senior Member
Join Date: Oct 2014
Location: Port Orchard, WA
Posts: 4,217
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Mini splits can be configured for one outside unit to supply coolant to multiple inside units. Might consider using two inside units which will cool one at a time without outside unit providing coolant. . . . on the other hand, I like the redundancy of two separate roof units cooling coach. They can run one at a time, both all out for REALLY hot days, or, here's what really adds the value for us, if one has a problem, you don't ruin your vacation by having no AC pending repairing the malfunctioning unit. Happened to us. A start/run capacitor died, I troubleshot, ordered a new cap, delivered three days later to next campground, put in, Charlie Mike. I'd have hated to spend those 3 days in Arizona in August, without ANY AC. 
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Scot & Laura Kellersberger, U.S. Army (ret)
Newmar 4 wheel drive Dutch Star 3891, SOLD
Now RV'ing on the water in a Trawler!
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05-16-2020, 09:24 AM
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#30
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Senior Member
Join Date: Mar 2009
Posts: 1,597
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I have no roof acs. Removed to make room for solar. I have two seperate mini splits. Yes, I could have used 1 unit for multiple heads. The efficiency drops when you go past 12k. Also no 120v units past 12k.
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2003 Teton Grand Freedom. 2006 Freightliner Century 120 with Detroit 14L and Ultrashift.2016 Smartcar carry on deck. Full time going from job to job. Building and maintaining plants across the USA. Sold 2006 Mobile Suites 32TK3
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05-16-2020, 04:06 PM
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#31
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Senior Member
Join Date: Sep 2019
Location: Minne-so-cold
Posts: 708
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Quote:
Originally Posted by geordi
In this entire thread, you haven't even mentioned what brand they are. That matters a lot, b/c certain brands last better than others.
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You make a good point! Here is the info for both:
Coleman Model#7333A8874
13,500 BTU each
Replacement Model: Coleman Mach 3 Plus Model# 48203C866
 
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05-16-2020, 08:24 PM
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#32
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Senior Member
Join Date: Mar 2009
Posts: 1,597
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Quote:
Originally Posted by C5c5
You make a good point! Here is the info for both:
Coleman Model#7333A8874
13,500 BTU each
Replacement Model: Coleman Mach 3 Plus Model# 48203C866
Attachment 285590Attachment 285591 |
But that not a mini split. No comparison either
__________________
2003 Teton Grand Freedom. 2006 Freightliner Century 120 with Detroit 14L and Ultrashift.2016 Smartcar carry on deck. Full time going from job to job. Building and maintaining plants across the USA. Sold 2006 Mobile Suites 32TK3
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05-16-2020, 08:43 PM
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#33
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Senior Member
Join Date: Sep 2019
Location: Minne-so-cold
Posts: 708
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Quote:
Originally Posted by glennwest
But that not a mini split. No comparison either
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Correct. They are both the existing rooftop A/C's.
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05-16-2020, 08:47 PM
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#34
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Senior Member
Join Date: Mar 2009
Posts: 1,597
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Quote:
Originally Posted by C5c5
Correct. They are both the existing rooftop A/C's.
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Sorry about that. Thought someone was posting to you about a alternate unit. Didn't really read it. My bad.
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2003 Teton Grand Freedom. 2006 Freightliner Century 120 with Detroit 14L and Ultrashift.2016 Smartcar carry on deck. Full time going from job to job. Building and maintaining plants across the USA. Sold 2006 Mobile Suites 32TK3
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05-16-2020, 09:05 PM
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#35
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Senior Member
Join Date: Sep 2019
Location: Minne-so-cold
Posts: 708
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Quote:
Originally Posted by glennwest
Sorry about that. Thought someone was posting to you about a alternate unit. Didn't really read it. My bad.
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No worries!
This is the mini-split I am getting. 
I might get the multi zone with the 6000 BTU in the bedroom and the 9000 BTU in the main area.
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05-16-2020, 09:22 PM
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#36
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Senior Member
Join Date: Mar 2009
Posts: 1,597
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What size is your camper? My are two 12k Pioneer units. One is 240v as i had to put a cassette in bedroom.
__________________
2003 Teton Grand Freedom. 2006 Freightliner Century 120 with Detroit 14L and Ultrashift.2016 Smartcar carry on deck. Full time going from job to job. Building and maintaining plants across the USA. Sold 2006 Mobile Suites 32TK3
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05-16-2020, 09:23 PM
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#37
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Senior Member
Join Date: Sep 2019
Location: Minne-so-cold
Posts: 708
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Quote:
Originally Posted by glennwest
What size is your camper? My are two 12k Pioneer units. One is 240v as i had to put a cassette in bedroom.
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38 feet long
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05-16-2020, 09:29 PM
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#38
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Senior Member
Join Date: Mar 2009
Posts: 1,597
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Quote:
Originally Posted by C5c5
38 feet long
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I would put 2 12k in there. But I stay in south Texas a lot due to work
__________________
2003 Teton Grand Freedom. 2006 Freightliner Century 120 with Detroit 14L and Ultrashift.2016 Smartcar carry on deck. Full time going from job to job. Building and maintaining plants across the USA. Sold 2006 Mobile Suites 32TK3
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05-16-2020, 09:33 PM
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#39
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Senior Member
Join Date: Sep 2019
Location: Minne-so-cold
Posts: 708
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Quote:
Originally Posted by glennwest
I would put 2 12k in there. But I stay in south Texas a lot due to work
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Since I am super insulating my RV, I am thinking I can get away with the 9000 BTU. The 12,000 BTU SEER is 26. While 26 is still good, it is not as good as the 9000's 30 SEER and the 6000's 33 SEER.
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05-16-2020, 10:01 PM
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#40
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Senior Member
Join Date: Jul 2018
Posts: 2,812
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Good luck, the seer rating is just how energy efficient the unit is. But 9000 btu's is the cooling ability. If you are stationary and cover the many windows your coach has, you might be able to get by, but there is a reason most coaches your size have either 27000 or 30000 btu's of cooling with units fwd and aft or connected with a duct system. Agree with Glen, one 9000 unit in the front or back of coach, will be great for the local area, but not for the other end of the coach. But hope you prove me wrong and it works great.
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Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
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05-16-2020, 10:03 PM
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#41
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Senior Member
Join Date: Mar 2009
Posts: 1,597
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Quote:
Originally Posted by C5c5
Since I am super insulating my RV, I am thinking I can get away with the 9000 BTU. The 12,000 BTU SEER is 26. While 26 is still good, it is not as good as the 9000's 30 SEER and the 6000's 33 SEER.
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I have the blue dow insulation in my Teton. It is as good as it gets
__________________
2003 Teton Grand Freedom. 2006 Freightliner Century 120 with Detroit 14L and Ultrashift.2016 Smartcar carry on deck. Full time going from job to job. Building and maintaining plants across the USA. Sold 2006 Mobile Suites 32TK3
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05-21-2020, 02:48 PM
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#42
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Senior Member
Join Date: Dec 2013
Posts: 1,846
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Take the first $50 for both and move on. They have no value and I wouldn’t want to feel guilty if they quit as soon as they were installed. Do the right thing and you will be rewarded in the future.
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