Mr Cool Installation Part II

[@BradNeumyer]

I think your discussion on overcurrent protection and breaker sizing was very informative as a relatively inexperienced apprentice. Keep up the great work! I’m still a few years off the correct licensing to be able to do my “own work” but seeing the details you cover and thought process on installations is very motivating.

[@mcarroll598]

When I was an apprentice starting out 26 years ago in the IBEW, my one journeyman told me, “Integrity, doing the right thing when nobody is looking” that has stuck with me to this day!

[@electricianron_New_Jersey]

Henry Ford said that.

[@mcarroll598]

@@electricianron_New_Jersey I’m sure he did, and my jman just reiterated it.

[@ElectroAtletico]

Nice vid to watch while drinking coffee, at 8 am, standing watch in the 12hr Saturday day shift!! 😎

[@electricianron_New_Jersey]

@@ElectroAtletico Glad you enjoyed it!

[@MiklaDfar]

I installed a 24k BTU MrCool unit in my garage. What a breeze! I was lucky to have an existing pad where three other A/C compressors were and a sub-panel right nearby. Nice job!

[@mackfisher4487]

Electrician must follow the code, I'm glad they gave us dispensation from using GFCI breakers on air handlers. It's hell when the customer keeps calling up and you have to keep resetting the stupid breaker. Not considering the price difference. Nice Job Ron

[@davidstewart1153]

You might have done your slab differently but it was better than the unit you scrapped, that's for sure. I was going to ask your opinion on relying on whole house surge protection was good enough, but you answered that in the video, so thanks.

[@electricianron_New_Jersey]

@@davidstewart1153 Multiple points of surge protection is a good thing.

[@pedropereira8924]

Thanks for sharing great information,blessings!!!

[@richb4099]

Stratolite was the name I knew of for that siding. My house had it and I had it all removed years ago and vinyl sided. Before anyone cared it was asbestos ! Those split units are good from what I’ve seen. Nice job as usual Ron

[@electricianron_New_Jersey]

That crap is everywhere down here at the shore. I run into it all the time.

[@jpotts6123]

An old time plumber used to Spray Windex on fittings to check for leaks, works well. Thats all I use to check for leaks now.

[@electricianron_New_Jersey]

@@jpotts6123 Good tip!

[@arnieselectric007]

Good stuff as always brother...thx for your time...😁😎

[@patrickluisi1600]

Thank you very much for taking the time to make this video!! You made it look easy, which is a nice change one thing that you did that I found very interesting was a surge protector that I haven't seen before in this type of application. Can you share any information about which one you selected for this project? I'm sure it would be much appreciated by many. Please keep up the informative videos and Thank you! P@t

[@RonSch123]

I'm glad to see you doing so well Ron. I've been following your videos for a couple years. You might remember me from the Contractor Talk forum. I'm still rselectric1 there and I think your handle was Magnetica or something back in 2009 or so. Keep it up brother sparky! Great Work!!!!

[@electricianron_New_Jersey]

That’s right! Hey man!

[@garycunningham8478]

Nice work. Hope you don’t get new siding anytime soon.

[@jamescollins8148]

The only important detail when doing your refrigerant lines is to follow their torque recommendations.

[@Merescat]

Great install. I need to do one for my shop!

[@electricianron_New_Jersey]

Go for it!

[@gabrielstern4992]

Do it but get a conventional mini spilt lineset and a vacaum pump those precharged linesets fail and don't work. And never coil up any excess linesets that's hvac 101. Dont believe me you can watch Ted cook at anti diy and his video on how to properly install a mini split there is also hvac guys channel there is also my hvac life all have gone over this.

[@ptso7580]

Would've been cool to see you wire that SP to the disconnect. Lot of videos floating on YT with bad info on how to hook it up I would recommend to run a service outlet near the condenser for techs to use for servicing for the furture. Believe its code? Not sure. If Min Amprage is not listed then LRA Load Runng Amps is listed on equipment for conduxtor sizing. Also have to consider the run of the circuit, so upsizing is fine. Awesome work as always. Hope the refrigerant was dunped in a tank before you cut the old unit out. Enjoy the mini slpit. Now once the old wall unit is out you can add installation and cut the cold draft out of the room. 😊

[@lancewolf2451]

I have a mini split for an attic room..the only problem are the flare fittings...leaky. it's a seer 23, 9k btu unit...we had a -6 deg f day in the morning and it was making 110 deg heat at the indoor unit..and at only 800 watts. ..amazing .

[@electricianron_New_Jersey]

I'd be lying if I told you I knew what a flare fitting was.

[@lancewolf2451]

@@electricianron_New_Jersey you would know what they are if you used any other brand unit. I think if I add more units to the house..I would use McCool for their o-ring fittings.

[@jaycahow4667]

@@electricianron_New_Jersey On a Flare Fitting they form the end of the Copper Tubing with a Flare tool like a Trumpet end which then fits over and is locked down a rounded brass end. They are suppose to end up air tight (metal on metal) but can leak if the copper flare is done poorly.

[@gabrielstern4992]

Have a hvac pro replace the lineset. you can also order mini split linesets off of Amazon and cut them to length with a, flare kit and then get a vacaum pump and gauge set but again it might be worth the cost to find a competant hvac tech redo the linesets as the refrigerent will have to be pumped back down into the condenser. That's why I don't trust those so called pre vacked linesets they are junk and fail.

[@chuckq54]

Hi Ron, I believe you are not supposed to coil up the excess line set because it acts as a trap for the refrigerant oil which will shorten the life of the compressor. They ask that the excess tubing be run horizontally so the oil can move freely. The best case scenario is of course to shorten the tubing but that requires an HVAC tech to recover the refrigerant, vacuum the system, pressure test, then recharge the system. Also surge protection is a must with these inverter systems with the control,boards inside the units. Nice work as always 👍👍

[@gabrielstern4992]

Exactly right I don't care what Mr cool says and what some others say you cut lineset to length and properly flare the fittings and then vac the system down a ton of hvac techs end up getting called up when these systems get corrosion in the linesets. From coiled up linesets and then sets off a code that shuts the compressor down. And yes the refrigerent can be pumped back into the condenser. Before redoing linesets withoyt having to recover all the refrigerent.

[@electricianron_New_Jersey]

@@gabrielstern4992always install to the manufacturer specifications, not whatever the hell YOU want to do.

[@gabrielstern4992]

@@electricianron_New_Jersey I am just telling you what the correct hvac way is not whatever the hell I want. Don't believe me go watch Ted cooks channel anti diy hvac he has a video on how to correctly install a mini split. Many people have pointed that out about never coiling up any excess linesets something that hvac pros like ted cook has pointed out. But you know what find out the hard way. Again just trying to help.

[@awesome6486]

@@gabrielstern4992 well said... good constructive criticism

[@evanrocha5465]

Looks great Ron! Nice install. One thing, does it do heat too? I’m assuming it’s a heat pump. You’re not worried about the snow, having it low/right on the pad? Or it doesn’t need to be raised?

[@0blivioniox864]

Nice. Stay cool now dude 😎

[@DanT271]

I see you have plenty of supervisors on this job 😂 Dogs Rule!

[@electricianron_New_Jersey]

Gus & Gonzo

[@MrTooTechnical]

Nice vid. Did u recover the old refrigerant from the old unit????

[@electricianron_New_Jersey]

@@MrTooTechnical my father in law took care of that.

[@MrTooTechnical]

Cool

[@reallunacy]

Did you install a receptacle outside near the new AC unit? I think it's in 2020 code.

[@osvaldomcs1213]

In California. You can't have PVC pipe outside. It would burn and discolor..unless you paint it.

[@electricianron_New_Jersey]

@@osvaldomcs1213 most of that states on fire anyway

[@Brozek973]

Hey Ron. If i wanted to, could i run 14/2 wire and put that unit on the 25 amp breaker ?

[@electricianron_New_Jersey]

@@Brozek973 For air conditioning equipment yes but not romex 14/2, it would have to be THHN/ THWN. The insulation of the conductor determines the ampacity.

[@gabrielstern4992]

No minimum 10/2 gauge which is up to 30 Amps but to be on the safe side 8/2 gauge. For any condenser split system for the condenser or mini split. For an air handler on a split system 6/2 Guage. That's hvac 101. Especially if using a heat strip on a heat pump because the heat strips use a 60 Amp breaker. That's hvac 101 Hope that helps.

[@lancewolf2451]

Mr cool has lines pre charged with an o-ring connection I believe..not a flare fitting

[@SqueakyHinge]

They have both.

[@gabrielstern4992]

Both but they fail just replace it with a proper mini split lineset. And vac out the system.

[@lancewolf2451]

It's a subtle point but the circuit breakers only protect the house wire ..it doesn't care about the device connected.

[@electricianron_New_Jersey]

That’s correct. Circuit breakers protect branch circuit conductors.

[@jpotts6123]

What do you do with the extra freon line set? Keep it curled up there?

[@electricianron_New_Jersey]

Just as the instructions said.

[@Deafjustin]

LOL because old AC unit always roll!

[@KenBRASHEAR]

Is the Mr Cool unit only for your garage office? Do you have a separate AC system for the rest of your house?

[@electricianron_New_Jersey]

Yes, we have (2) zones of forced air in the main house.

[@osvaldomcs1213]

You are supposed to cut and flare the tips. Never leave the line set that long wound up.

[@electricianron_New_Jersey]

Are you a professional HVAC tech?

[@projectswithjw]

Not on a mr cool lineset. The lines are sealed and vacuumed down to be refrigerant ready

[@gabrielstern4992]

​@@electricianron_New_Jerseythat's the way it's suposed to be done don't believe me watch Ted cooks video on anti diy channel on how to corectly install a mini split yes it's a Mitsubishi but he demonstrates how to cut and reflare a lineset and how to vac out a system. And never ever coil up a lineset even if Mr cool says it's okay. Because trust me when the Mr cool starts malfunctioning and sets a code that shuts the compressor down and the linesets get green corrosion on it then you won't think the Mr cool is so great. Thats hvac 101 look you are a great electrician and many hvac guys can learn from you on the correct way to do wiring but in this case you need to learn how to properly cut an hvac lineset and reflare them properly and vac out a system. To do it right. Regardless of brand.

[@cwk_619]

Good videos...learned alot...but your house exterior needs some work.....

[@mattschoular8844]

Cool!

[@jeffbecraft7174]

Mr.Cool putting AC guys out of work..I've been electrician 30yrs. I've done like 5 of these. Simple

[@electricianron_New_Jersey]

That's ok because they take a lot of our work and have been for years!

[@SqueakyHinge]

Not necessarily true. I've got one in my shop where I replaced a Mr. Cool that did not work since startup for 3 years with replacement by a well known system installed to all techniques for proper and long term operation. And I'm working on another presently where the owner installed and never has worked. In a few years a portion of these will fail and the owners will be shocked by the costs of repairs and/or they will realize the refrigeration effect is only in the room where the "head" is located even if their are multiple heads all over the home or building. I see lot's of replacement work for these in a few short years.

[@gabrielstern4992]

​@@SqueakyHingeexactly right I have seen plenty of videos where hvac guys have to come out and redo the linesets on the Mr cools because the system stops working. One guy got so disgusted he was ready to say I will not work on anymore Mr cools but there are other companies too now trying that so called diy precharged no vac linesets rule number one never coil up any excess linesets period it starves the system of oil. Me personally I like pioneer mini splits because they actaully tell the diy person what tools they need and how to do it right in the instructions. But say hey if you are not comfortable doing it call a licensed hvac tech.

[@TKomoski]

"Despite the negative press covfefe," the tweet read, and nothing more.