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I crimp ferrule fittings on all stranded wire. From 6 gauge to 16.

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He's right. Don't do it. What the max setting for static? 0.6? It's as low as 0.2 on some units. Are you hard piping it all? Use flex and you really will be in trouble. We are just trying to look...

Multi-zone systems only have so much turndown. The hot refrigerant has to go somewhere. Even if the fan is off on a particular head it may still radiate heat. Dont oversize like crazy just because...

Ive been told by Mitsubishi that even with their high static (.6) version, you dont want to do more than 3 supplies. I would never contemplate doing an entire house with spaghetti duct running willly...

Rothenberger makes awesome HVAC tools.

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Flex duct is meant to be used as short supply runs around five feet coming off the main branch.

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Interestingly enough, the last big job I bid on required pressed fittings and wouldn't allow brazing or torches on-site.

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Wow. Maybe I should have gotten one of those instead of the $1100 I spent on a new Milwaukee press tool.

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I thought Rigid only did the lifetime warranty on tools you buy from Home Depot and then register within 90 days...

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It's a gymnasium with a lot of people moving around and getting hot. Each person can create around 500 btus. Keep that in mind when calculating cooling needs.

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The hole to the outside looks bad. They should have used a wall sleeve, non hardening puddy, foam, all of that or at least something...

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Don't drill multiple holes. Drill one hole between 2.5" - 3" and then seal the outside of it with plumbers putty, volkum, buffalo snot, whatever you want to call that grey non - hardening stuff. On...

My company does residential and light commercial. Since I purchased the ZoomLock system eight months ago I haven't had to braze anything this year. On a residential install, If we have to braze, it...

You should build a new plenum out of sheet metal. If you don't know how to, pay someone to. Duct board, especially for a plenum, is nasty.

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I have had 0 issues with it.

Mitsubishi tech guy told me they are acceptable to use on their equipment and won't void the warranty and that is 80% of what we do, so...

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Does it have a rubberr seal all the way around the lid?

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I always use the rubber myself.

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How is putting 407 in a 410 compressor saving the customer money?

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Any bag is as light or heavy as you make it.

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I use the Veto XL open tote bag. I can stuff a ton of tools in there. More than I'll ever need. The shoulder strap makes it extremely easy to carry, and it is pretty comfortable - you don't notice...

So your job is to draw it down after the install? Are you union commercial?

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If you're doing the startup you should be the one testing the lines.

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I always pressure test to 600. I dont think you're picking up what im putting down. All I was saying is the excuse guys have said in person, at several Mitsubishi training classes I've been to, is...

Im not condoning, that is just a common excuse I hear in the real world.

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They don't have gauges that go to 600.

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I did speak to Mitsubishi tech rep every time.

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I have matched outdoor M series 36s, 42s and 48s with indoor P Series before. The counter guys claimed it wouldn't work. It does. Some are comparable. The way it was told to me by Mitsubishi tech...

Yeah, but did they mention that you do not get a 12 year warranty if you use M series in a commercial application?

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Not true. I've connected a single indoor head on a 30, then ran ball valves on the open ports so I could hook in later with additional units without having to evac the system. And I have a good...

I bought the Milwaukee M12 Press tool and the Rigid Jaws about 4 months ago.

I have probably put around 150 fittings on in that time period with 0 failures when done correctly.

On bigger jobs...

This guy is like a walking maelstrom. Lazy. Cheap , you name it. He is always putting out some kind of fire.

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Not me, but a friend of mine who owns an insulation company. The homeowner warned him multiple times about driving over some prized flowers he had. My friend kept driving all over the lawn anyway....

Hmm. This isn't my first rodeo. I've put a couple hundred of these in. I am a Diamond Dealer. Sometimes Mitsubishi says things like you have to put multiple units on the Mxz3c30 but that isn't...

I know exactly what I want to do. I just don't know if it can be done. I can put in a P Series 42k hyper heat w/o a branch box. But it is a lot more expensive than just a m series 42k hyper heat.
...

Mitsubishi makes a P Series 42,000 AHU that is compatible with the M Series condensers. You have hooked up to one of the big hyper heat that say they require a branch box without using the branch...

Anyone know if it is possible to hook a single AHU up to the Mits 42k hyper heat without using the branch box? I know I can go to the p series, but I can stay in the m series and not use the branch...

I mixed up in coming wires from the indoor heads to the branch box once and it did this. That would be the first thing I would check if it is addressed right and dip switches are set.

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Yea, don't get this for soft copper. If it does cut it, it won't be a workable end.

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It won't work worth a damn on anything under 5/8 (soft copper). And even the 5/8 it beats to crap. I mainly do splits and I had to return it. Well, i meant to return it. It's sitting in the box. Im...

Invest in a better flaring tool, one with a clutch so it stops tightening when you've reached the right depth. Also, an orbital flaring device. Hilmor makes a decent one. Rothenberger too.

I wonder how many people tried to reach 275 inch pounds with a regular folding key set.

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The RLS jaws definitely work on the M12 but not the M18.

They also save a lot of time. I've stopped flaring for the most part and just ZoomLock on the connectors. Pass the cost onto customers and...

You are going to want closer to 3" if you're running condensate lines, wiring and refrigerant lines thru it.

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Might want to go with the saltwater resistant Mitsubishi. I cannot think of the exact name off the top of my head. It might just have an SB or something at the end of the regular names (like...

I use a bucket for random stuff I need at that moment and garbage, the Milwaukee Packout Case to hold my Impact and Drill and my common 95% of the time hardware, and an old shoulder strap pouch bag...

I recently purchased the Milwaukee SDS Max. The thing is a beast. Dewalt, Makita and Milwaukee all make good SDS Max drills. That is what you are looking for. A rotary hammer drill in the SDS Max...

I recently purchased the M18 Surge (Hydraulic "Impact"). It is a beauty to use versus my DeWalt XR 1/4" Impact. It is smoother, quieter and it seems faster when using it for lighter duty work. For...