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Duct is duct.....airflow doesn't care if it's in a commercial space or not. Just look at your duct calculator and check where your static pressure is for the CFM and size.

The new equipment...

Yeah, welcome! Nice to have another experienced guy in the ranks. Get your PRO status lined out....it's free and easy!

Yeah, sorry, been awhile...got that backwards.

There are times of backwards flow through the decoupler, but it shouldn't be happening a lot. It's nice to have a flow meter or temperature probes...

A decoupled is not a bypass.

A bypass is installed at the end of a secondary loop with 2 way (open/close) valves. This allows a small amount of flow in the loop at all times. The purpose is...

Been awhile, but there should be an evacuation mode that opens all the BC and expansion valves.

Pumpdown would close all the EXV's, so don't use that one! LOL!

I don't know why they're calling it a "hybrid drive", looks like it's just a speed drive.

One document mentioned them as being soft starters. If they are simply a soft starter that you can...

Used to work for a lot of school districts....mostly thier guys knew very little, cared very little, and had zero motivation.

Stationary jobs like that tend to make you change your outlook on...

Why not just use an off the shelf processor cooling system? There are several companies that make them . Usually, they use glycol, with a fan and heat sink for cooling....there's tons of them on...

There must have been some sort of update with android or Google, or something....this all just started on my phone a day or so ago, and I've not done any phone software updates.

Where are we with...

Regarding purges on condensers, they were still common in the 80's/90's.

One of the last ones I saw was on a Mcquay air cooled chiller. Listed as "purges" in the documentation.

Saw some...

There's no question about changing the LL drier...it gas to be done...especially a burnout. I would even consider a removable core shell for that as well.

Mixing oils isn't a big deal...50/50...

Yeah, you're prolly right. I think that "head" is the answer....just wonder how many a year we'll be buying with the exposure to ammonia.

We have a short one, but it's older and isn't made...

Look at the hobo-freight engines...they're Honda clones.

You need to have isolation valves and pressure taps on the suction filter.

Install a core, monitor it for a few hours, you'll likely have to change it once before you leave. Then check it the...

Used to deal with 3rd party, had several complaints of "tech not at site", etc. GPS report easily solved those.

You wanna move to the states?! LOL!...seriously though...work visa?

This career will take you as far as your level motivation. If you wait around for someone to hire you, it shows a level of...

If the gaige costs $12 00.....pay more! 😆

Vilter uses "pal nuts" to lock the rod bearing bolts. They're a little more critical, as they're a one time use, flimsy lock nut that reforms when torqued.

Been doing some Frick screw coalescer...

Usually the range is 15psi, with the center point being around 7psi...but there were many ways to do it.

Usually heating valves were designed to fail open, so if you lost pneumatic air, the...

WTH? I spent a fair amount of time looking for something.....those didn't pop up. Maybe cause I was focused on torque wrenches?

Oh, now that's interesting! I wonder how it would hold up to ammonia! LOL!

I'll call them tomorrow.

I'm not gonna church it up, unless someone is seriously interested.

Looking more for an entry level person that is driven and motivated to learn.

We'll consider a seasoned tech, but honestly,...

I can't seem to find a foot pound torque wrench with a less than 12" handle.

Need something that will handle around 50-60 ft.lb.

8 cylinder crank cases are tight!

Oh, it's a refrigerant valve. Then you might look through parker or Henry documentation

Who is the equipment manufacturer? Could be some stupid German brand valve.

Except that EVs have been around in one form or another since the early 1900's!😋

That's kinda my point.....nobody has forced anyone to buy an electric car.

Yes the industry is being pushed toward electric, but the big 3 have proven they completely suck at innovation, and...

Their business model has always been to start with expensive, hard to produce models, and then refine the process to make everything cheaper and faster.

The upcoming model 2 will be the fruit of...

Last week I started getting tapatalk email notifications again.

Did something change with the site software, or the use of tapatalk?

I haven't been getting any notifications since TP was...

A two way valve has 2 ports....a 3 way valve has 3 ports.

I doubt that's a belimo valve.

I would guess the A port is on the right, with B and C being the other two. A would be the entering...

Actually, teslas are safer than most other vehicles.

You guys kill me with all the EV hate....did one run over your puppy or something?🙄😁

If you have a feed float bolted in place of the sight glass, you may have to remove it and use electronic cleaner to clear the float seat.

I just helped a company that had a new copeland 6d that...

Yeah, to be able to see live shipboard video feeds is amazing! Very cool stuff!

Amazing launch. Several milestones reached. Ship burnt up on reentry, whichbis what was expected!

Humankind hurtling toward being a multiplanetary species!

Looks like 10 minutes to launch....the WAI link is pretty good, they're showing the X fees.

When JCI hires an "apprentice", that means they want a cheap guy that has no clue of his actual worth.

If the guy is good, they'll exploit his skills, while paying as little as possible.

If he...

My car sits in the garage all week. So far I've averaged less than 1,000 miles a month, in the past 5-6 months.

If tesla had the model 2 out last year, I definitely would have bought one.

I...

Apparently, during thw WDR, they loaded 4,800 tons of liquid propellant in 45 minutes....or 1.92 tons per second.

Looks like a launch is possible next week...listed as no earlier than 3/14.....pending a launch license.

They're expecting an 80% chance of success.

With all the changes made after the...

https://youtu.be/WLMalLy_3JU?si=htoEhr4FLKlh6P5V

Leno drives the 2024 model 3

I've had to install pneumatic dampening orifices in air sensing lines to smooth out the bouncing.....but, seems like you have some other stuff to work through.

I believe the "largest" actuator belimo makes is 300 in.lb....after that you have to double them up. But really if you need something that heavy, you should be using an industrial valve/actuator. ...

what he said......also you don't have a "hydronic valve", unless this unit has a hot water coil installed.

Not trying to be a jerk, but proper terminology helps us all help you!

check air flow,...

This post triggered a vague memory of him explaining the nuisances of the unloader vs loader heads.....maybe do a search here for his name. I think it was within the past 5 years.....can't remember...

He said it was 2 different compressors...be interesting if one was MT and one was LT.

But still, just level controls and SV's.....

Hey, you're right! Good catch!

Know you the ways of government math....mmmm...yes!

Engineer is actually the title for site operators in some places.

So the OP is likely an onsite HVAC technician.

We all have to start somewhere. At least he has the forethought to ask the...

How do you know its oil flooding?

Usually broken parts are liquid refrigerant.

Doesn't matter what the refrigerant is, the basic system operation is the same.....you cant pump liquid.

I don't think you'll get a chiller with R32, as they're limiting charge weights.

FYI: propane is R290.

As for a chiller, KISS method is prolly best....aka another air cooled unit with scroll...

Work up a few quotes and let them decide.

1 new compressor

2. New outdoor unit

3. New coil and outdoor unit

Really though, if there's no acid, just replace the compressor and filter...

Yup, just get a sheet of non asbestos garlok and an allpax Corp gasket cutter.

Get the thicker material...3/16"... I believe