MRCOOL DIY Mini Break up Set up

Simply once you assume your HOT and HUMID evening out within the storage can’t get any worse, the mosquitoes swarm in from the open storage door!

Sufficient was sufficient, it was lastly time to get some air con! And never simply any outdated window shaker, a correct mini break up that’s environment friendly and tremendous QUIET!

Enter MRCOOL, a warmth pump operated mini break up that may supply BOTH heating and cooling features to an inside area. A “mini break up” consists of an air handler inside, and a condenser positioned exterior. You hook up each with a lineset that carries refrigerant.

Now usually this sort of set up would require a HVAC skilled to carry out the set up, which provides $$$ to the undertaking….large time! Nicely, with the MRCOOL Diy system, this can be a job that you may completely do your self. The truth is, I did your complete job myself except for having my spouse assist me carry the 100 pound condenser exterior (my again shouldn’t be the very best LOL). So the half that makes this method DIY pleasant, is the precharged lineset that takes 2 adjustable wrenches to assemble. It doesn’t get any simpler than that. Nonetheless, the lineset is simply obtainable in 25′ presently, so plan your set up accordingly.

MRCOOL Merchandise In This Video

MRCOOL Diy third era E star 18k

Lineset guard package (I used 2 kits for my run)

MRCOOL MB176 wall bracket

MRCOOL sensible controller (so you should use the smartphone app)

MRCOOL mini thermostat (this replaces the distant if )


The directions for the 18k unit state the 12ga wiring have to be used, together with a 20A breaker. Since this unit is 220V, I ran 3 wires (2 hots and a floor). Additionally, the wiring is tremendous simple since all the things is labeled.

12ga THHN black

12ga THHN crimson (I used yellow since I had some leftover)

12ga THHN inexperienced

Useful Sources

I believe probably the most difficult a part of this set up for most individuals would be the electrical work. Beneath are some hyperlinks that may aid you out.

Non contact voltage tester (detects dwell electrical wires simply)

Conduit bending idea (I discovered tips on how to bend conduit from this website)

Conduit fill calculator (can’t have too many wires per code)

Wire ampacity chart

Wire lube (all the things is a bit of higher with lube)