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Okay - here is the issue. Basically, flares **** in many ways, and here is one. Most installation manuals recommend that you create a solid mounting for the outdoor unit, usually a cement pad, or one of those "on the wall" brackets. Is there a reason for this? Yeah - it's because most...

I have one mini-split where a vacuum to 280 takes 25 minutes and it goes up and down and seems to get stuck at certain numbers for quite a while. It'll hit 1250, go back up to 1300 (for example), and then bounced around between them before it goes lower. Happens all the time. Then on the other...

This probably seems stupid but I cannot find the definitive answer. Let's say you have a mini-split that is low on R410a, so you pull a vacuum and you are ready to add coolant. You do not want to lose the vacuum, but it isn't like the installation procedure where the coolant is already inside...

Just got a VIVOHOME 110V 1/2 HP 5 CFM Dual Stage Rotary Vane for my mini-split, and it was working great an hour ago, getting down to 300 mics and holding steady but getting a little hot. So I left it off for an hour - same fittings, etc. I come back and turn it on and now it will not ****...

I can't find the exact info I need to understand the types (male/female) and sizes of Mini-split connectors. My micron gauge has 1/4" male flare connectors. So what other pieces do I need to set it up with a vacuum? Specially; what types of ends and sizes do I need for the adapters? I see some...

I have a registered WYS012AMFI19RL 12,000 BTU Pioneer mini-split that after two good years has suddenly lost coolant. I want to reflare and reload. I need to buy the right-sized torque wrench and wrench jaws for the flares. The 1/4"-1/2" lineset on that unit correlates to 5/8" and 15/16" tool...

sorry - double-post

Someone asked me to tell them if this tool is any good after I tried it. It is GREAT. https://www.amazon.com/gp/product/B07KHP982F/?tag=atomicindus08-20 This is a flaring tool sold on Amazon - it works the same way most of them do, It does have the eccentric rotation but here is the best part...

What exactly is required to do a good nitrogen test on a mini split? Or in other words, if I want to do a nitrogen test, what exactly do I need to acquire to do it. How much nitrogen (16-ft line set) or what size tank. Should it pressurized up to a certain amount, or is that a limited by the...

So, I am going to do an install of two non DYI Pioneer mini-splits. I am ordering all the tools I need - but I need help on the torque wrenches. I understand it is ideal to have these but they are expensive, so I am trying to economize. Most claw foot torque wrenches on eBay seem to come with...

I have been researching this for two weeks now. I have not yet done an install but I have fixed things around my house before (the LED strips in my big screen TV, our oven igniter, a control board for a washing machine). Mr. Cool is DYI and costs $500 more than Pioneer for example. But the only...

Here is my problem. Two Pioneer mini-split units - same model number, both installed on the same day by the same guy. I did not know how complicated the install process is when he did these four years ago, we just knew he had done the job before. Well, both of them lost all coolant during the...