Anyone ever put in a mini split A/C? I have a 1000 square foot lake cabin I want to put a mini split into and I was hoping to do it myself. I know Mr. Cool makes a DIY kit but I am curious about what is different about that kit vs a regular mini split.
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get one off of genie a/c's website. Some are already charged. -
For optimal results you really need a Hvac guy to pull a vacuum on it. Getting ready to put one in my cabin as wellComment
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Yes, you really should run a vacuum, and don’t go over max line set length or you will need to add refrigerant.Comment
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i run mr cool in my cabin. now they have the multi zone available. i couldnt wait for it to be released at the time so ran 2 of the 500 sf units for the 800sf cabin.Comment
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Yeah I have seen some videos of guys installing them using a vacuum pump off of Amazon.Originally posted by Rafter S View Post
But when you look at the “DIY” kits they claim no special tools are needed. Makes me wonder why they are different than the regular ones that aren’t “DIY.”Comment
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Was it hard to install? Installation videos make it seem pretty easy.Originally posted by wes122984 View PostComment
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I installed 3 Mr. Cool units. I liked them because they were a true DIY and came pre-charged. You just had to make sure you had 220 connections if that was required. Now, after three years, each of the units has began draining through the vents into the house instead of outside through the drain lines. Drain lines have actually broken on two of them. Not sure what it will take to fix but Mr Cool customer service truly sucks.Originally posted by rfroese View Post
In hindsight I should have paid for the more expensive units. like the old adage buy once, cry once when trying to save money.Comment
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It may have a line set that is already sealed in a vacuum, then when you install it, it punctures itself. If that’s the case you can not change the length of the line set, cut it shorter or add to it. So you may have to coil some of it up somewhere behind the condenser, or in the attic. That could save you from having someone with a vacuum pump or having to buy one.Originally posted by rfroese View PostComment
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That is the Mr Cool style. It is pre-charged but you have to be ok with the extra line length coil.Originally posted by critter69 View PostComment
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I just put a 12K BTU MrCool DIY in my living room to supplement existing central air. The install was pretty easy...YouTube has great videos that show each step in the process. Only time will tell if MrCool was a wise choice but so far I love it. Very quiet and works great.Comment
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As an HVAC Tech my self, these DIY kits scare me. No warranty (that’s easily accessed), high risk of property damage if installed wrong, no way for the DIYer to know if the system is properly charged for their environment, and they’re usually pretty low on the efficiency ratings.
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I have this one I bought for my shop. decided to go with a bigger one. still brand new. I'd take $2000
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I've installed a couple of these now and they work wonderful. I just pay an AC tech to come out and pull the vacuum, release the refrigerant and check for leaks. So far they are are still running without issue. But they have gotten low enough in price if I can get at least 5 - 7 years out of a unit and one dies, they are cheap enough to replace and get a completely new system.
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