This video shows just how complicated it is to charge a system correctly. Thank you very much

You remembered my Maestro . He was good. You did a good job .

You can bleed hoses into the system quite simply, it just takes a bit of planning. As you are getting close to the end charge, turn off the tank and add only refrigerant from the hoses. If you need a bit more, just feed from a hose full of refrigerant at a time until the charge is set. Nice set up having all the T and P inputs at your fingertips on the laptop. The old saying - if it was easy anyone could do it - will now be - with Jim's system, anyone CAN do it. LOL

I think the key take-away here is that you can use an inverted 410a tank as a stool.

@james77011

4 жыл бұрын

Lol 😂

@NoflectioN

3 жыл бұрын

A/C 101 😄

@josearreola3629

3 жыл бұрын

These are secrets of the trade, can’t show noobies right off the bat about tank/stool... I still want to laugh at the noobs that buy those mini stools when I visit the suppliers!...

@travisculpepper2091

3 жыл бұрын

😆.. I do it all the time!!

@khw71471

3 жыл бұрын

😂

Cool set up man....nice to see other master technicians taking time to help somebody else. I see a lot of installation mistakes with them z coils man....

Great video. Well presented and very informative. Thank you!!

This video contains excellent information and good schooling.

Your equipment setup are real high-tech must be quite expensive but that makes your work much easier

Good video thank you very much for your teaching

You got to love JIM😜

Great video Jim. Would like your thoughts of the importance of using a liquid low side charger when charging R410a in liquid through the suction valve. I've heard various opinions on it and would like to get that of a certified badass. Thanks again for all your doing to progress our industry!

@measureQuick

4 жыл бұрын

They work fine. If you listen to the system and add gas slow you can get away without it.

Great info! 😎👍

Also make sure you have right airflow. Fan speed plays a part too 😀

Wow! I hope they will build glass box for our AC system like this in the future

Love the app. Use it everyday. Looked like your txv bulb was contacting the liquid line under that rag. Probably why the valve is wide open giving lower sh.

Very nice video

hey jim great video learn so much in all your trainings. question mini split a/c units can you the measure quick to charge?

@waynejohnson7134

4 жыл бұрын

i see bergman never answered your question

@Elisummit845

3 жыл бұрын

You can't because of the inverter. The unit will ramp up based on what it feels (with the thermistors). It would be very difficult to charge a system based of your gauge pressure.

good job

Thanks Mr

Please show us how to do the electrical in the app. I know how to do condenser fan but not evaporator fan and please explain power factor. I'm sorry I just love the knowledge you share with us for free thank you 🙏🏽

Can you do a video on start up of a heat pump in the winter time using the Fieldpiece probes and measurequick please.

@thejammer3359

Жыл бұрын

I agree had a hell of a time trying to use measure quick on a heat pump in the winter time.

Plexiglass evaporator cabinets should be mandatory!!

@chrisbentley9615

4 жыл бұрын

dave johnsonnola no doubt or maybe HVAC x-ray vision tools. Inspection cameras are great peeking in the EC to identify the metering device 😊

@mychoclabwinston

4 жыл бұрын

Yes exspecially with these N coils, a lot of installer errors

@NoflectioN

3 жыл бұрын

@@mychoclabwinston very true!!!

Thanks a lot Jim for such video, Can you please tell me what kind of temperature sensors we need to connect with this app and how these sensors will connect? By Bluetooth? Please tell me where from i can purchase?

Hi Jim, please make a video about proper charging of a mini split system. Thank you

@BuzntFrog

3 жыл бұрын

Charge to weight is the only real way for a mini-split.

Also man 20 minutes of charging. Usually takes me about an hour on Goodman/Amana. That’s what we install. I’ve seen from start up a charge go from .5 subcool all the way to 8 (recommended subcool) after sitting for 45 minutes watching the thing slowly climb.

You purged your hose to the ball valve but what about air from the ball valve to the service tee?

@measureQuick

4 жыл бұрын

Dave brooklyn opening the ball valve pushes refrigerant all the way through the hose. The connection tee has a schrader.

Thank you for the video. I am still getting familiar with mQ. I love it though. I would like to see a video of charging a heat pump during winter. A real one and using mQ.

@measureQuick

2 жыл бұрын

You can only go by the manufacturer’s guidelines and get it close. Heat pumps always need to be charged in cooling for the most accuracy.

@CHOMAHOMA

2 жыл бұрын

@@measureQuick Yes, I went by the manufacturer's table at 25°F OT. I got it as close as I could. Schrader cores were loose and I lost some Refrigerant. I am still monitoring. I have all the probes now in order to keep measuring. However, the videos I have seen so far, are not as informative as I would like. Goodman just tells you to get the SH at 5°F. I will keep measuring and wait till summer time.

@measureQuick

2 жыл бұрын

@@CHOMAHOMA So that would likely be superheat controlled by the outdoor metering device. Make sure that you are measuring on the true suction between the reversing valve and compressor for both temperature and pressure. Add gas very slowly if you have an accumulator.

@CHOMAHOMA

2 жыл бұрын

@@measureQuick OK. It is a pain to get to the Suction line to take the temperature with the probe. Trane units are the best considering that aspect. Thank you for your advice.

Question Jim , would an air flow issue ever cause a site glass to bubble resembling a low charge ?

@measureQuick

4 жыл бұрын

It could if charge migrated to the evaporator.

11:47 - What is the material of your sight "glass" so that it is capable of withstanding the pressures of 410a? Quartz? Pyrex?

Sight Glasses are a normal component used in REFRIGERATION and AIR CONDITIONING commercially. I think they would help if used more in RESIDENTIAL use also....

@logancollins2420

Жыл бұрын

Us resi installer hacks would break them

Obviously u Master HVAC man u have fancy equipment not for beginners or people trying done ac work thanks for share u video but I lost my way after 2 minutes into video

@measureQuick

3 жыл бұрын

It is very much made for beginners, all you need to do is properly place the probes. MeasureQuick will do the calculations and diagnostics for you.

HVAC tech goes high tech with computer digital data. Nice

What is the grey rectangular looking device with the flashing light on the side of the box containing the electrical components?

@measureQuick

4 жыл бұрын

Tom Thumb that is the outdoor part of a Sensi Predict system.

I saw a different video where a trained tech said to always charge with gas (tank upright).. are some refrigerants best to charge with gas versus others with liquid? Also, although you had tank upside down and said this was intentional to charge with liquid, several times you mentioned that you were charging with gas. Could you please clarify the confusion?

@vondarkmoor1

2 жыл бұрын

A lot of techs will refer to refrigerant as gas, in the same way its commonly referred to as freon. He does not mean that he is adding the refrigerant in its gaseous form, he is just calling the refrigerant "gas". R22, the previous most common refrigerant for residential systems could be added as a gas no problem (this is also were the name "gas" most likely came from). Adding as a gas is "safer" because you wont slug the compressor with liquid by mistake. BUT, it is significantly slower to charge as a gas. You can charge any refrigerant as a liquid, as long as you use your hose valve, or manifold to meter the flow into the system. this is done by only opening the valve or manifold a little bit. As long as you are careful, you will be fine, and you will eventually develop a feel for it. I do not think there are any refrigerants that are "best" charged as a gas. some refrigerants MUST be charged as a liquid, like 410A, 407C, and any blended refrigerant. Ones like R22 are not blends. Blended refrigerants need to be charged as a liquid to prevent the different chemicals from entering the system at different rates. If you look on the bottle of refrigerant you will often see big arrows pointing to the bottom or top. The arrows tell you what end needs to be up during charging. A lot of them will even just write it on the bottle itself.

What kind of air filter have you been installing? Pleated or non pleated?

@measureQuick

4 жыл бұрын

That is a 1” pleated.

Hey Jim what brand is that beautiful sight glass?

@measureQuick

Жыл бұрын

It’s custom made with Pyrex glass and protected with a polycarbonate cover.

@r600a8

Жыл бұрын

@@measureQuick Oh that makes sense.

He purged the hose...but he didn’t have the tank open, hard to imagine he really purged the hose that way....and I didn’t see him purge it when he opened the tank

@measureQuick

3 жыл бұрын

Watch it again, it was purged. I just checked it myself, not something I would typically miss

To decrease refrigerant loss in your charging hose how about putting the valve end on the tank rather than the service port? You could still use the box as a seat (LOL).

@excellentday

4 жыл бұрын

cashion556, If the charging hose was reversed, you would not be able to depress the Schrader core at the service valve; you would also not be able to get any refrigerant for the same reason (that you may have figured out by now). The end at the tank does not have a core depressor, while the end at the valve does.

Mr G.B . How much refrigerant will be in the yellow hose ? If you put the remaining refrigerant that the yellow hose contain. How much the SC will be increasing and what happens to the SH? Thank you!🍻😉

@measureQuick

4 жыл бұрын

José Cruz I never recommend emptying out what’s in the hoses into the system. What’s in the system is in the system adding anything else will just create an overcharge. Any more a few ounces can make a big difference.

@michaelnash8435

3 жыл бұрын

@@measureQuick how do you recommend emptying the hoses? Dump to atmosphere? Set up for recovery just for hoses?

Jim, if it is low on gas wouldn't you have check for a leak or leaks as well before you charge it, which really is a recharge?

@measureQuick

4 жыл бұрын

Nope, I am testing it all the time, it looses gas from frequent testing

Great video, I use Measurequick everyday. Hardest part I have up north in Canada is charging a system without a decent load. Majority of the time our return air is hovering areound 68-71. Can you leave the 410 bottle upright if the tank is equipped with a liquid valve wth a dip tube taking liquid from the bottom?

@joeshearer1247

4 жыл бұрын

Cory Desormeaux have you ever seen one with a dip tube?

@measureQuick

4 жыл бұрын

Low load is a headache, especially with low airflow too.

@hozerhvac4406

4 жыл бұрын

Joe Shearer up here in Canada that’s all we have. We never flip our 410 bottles when charging because we have the liquid valve that pulls from the bottom

@joeshearer1247

4 жыл бұрын

Cory Desormeaux Wow here in the states I’ve never seen a bottle with a dip tube.

If using the auto capture feature for electrical measurements, how do you get a proper reading on a blower with the door closed/on? In your test set up, no issue with the wire sticking out, but in real world that's not possible.

@davidjenkins4838

4 жыл бұрын

pull a bit of the wire you wanna take amp draw on up through a hole into the furnace cabinet, works great

@jrsmyth9761

4 жыл бұрын

@@davidjenkins4838 Not possible on any air handler I have worked on. Furnaces, maybe.

@CombatFIFChuck

4 жыл бұрын

An air handler you could measure from the disconnect. A furnace you can measure from the burner panel where the main wire comes in. For most anyway. Or you can put the meter in with the blower and read numbers via bluetooth

@jrsmyth9761

4 жыл бұрын

@@CombatFIFChuck You can stream the numbers via bluetooth and then manually input them, but you can't auto capture them. Not sure how you measure at the disconnect for an air handler, unless you have an external disconnect.

does measureQuick require an internet connection to use? Could a samsung galaxy s8 connect to multiple probes at once?

@measureQuick

4 жыл бұрын

Nanda Davis no internet connection required to use and it can be connected to multiple probes. Even different manufacturers at the same time.

Also with measurequick

Is it true that to properly diagnose an AC unit the outside temp must be warn or hot?

@measureQuick

4 жыл бұрын

Not necessarily, with tools like measureQuick the design temperature differences are calculated and we can diagnose problems at much lower temperatures. You can easily work at temperatures between 55 and 65° with confidence.

20:15 "make sure you have good airflow-" Since this is a test setup, you made no mention about restrictive ductwork. In a field test, static pressure probes could supply information about the system external static pressure. This should have been mentioned and explained. Otherwise, it was a great presentation.

@measureQuick

2 күн бұрын

We made an updated version that addresses that. Thanks for the feedback! kzread.info/dash/bejne/fKWlqq1seJrIqMo.htmlsi=uYR0MFJNTrSQVET_

Hey Jim can you tell me why testo550 wouldn’t stabilize on EV numbers just go’s up & down

@measureQuick

3 жыл бұрын

G GRIM RIPPER the TXV is modulating open and closed. Not quite “hunting” but modulation between about 7-10 degrees of superheat if I remember.

Hey do you guys hire technicians from other countries who are willing to migrate.

wouldnt such a low superheat indicate liquid refrigerant returning back to the compressor? which in turn would shorten the life of the compressor, location of the txv bulb should be corrected from being so close to the liquid line and of course insulated.

7:18 to 7:21 you lost me there what do you mean by it’s an oversized evaporator coil it’s got a ton and half evaporator coil with a 2 ton evaporator?

@measureQuick

Жыл бұрын

Yes

I don't see the liquid to vapor quick tube is installed on the blue/vapor side while charging the unit, how can the host charge the refrigerant so fast without stop every 2-4 seconds ? or it does not matter too much in reality ? anyone know ? thanks

@measureQuick

3 жыл бұрын

As long as you are not feeding in the liquid to fast it will not cause any damage to the compressor.

Would you post ordering information for that charging tee fitting you're using? The Appion CTEE14 is pretty pricey.

@CharlotteGlamour

Жыл бұрын

Supco Charging Tee CTEE14

Are liquid charging adapters worth it?

@measureQuick

4 жыл бұрын

Ken Marriott not needed, just throttle it in slowly. Scrolls are pretty durable also.

@kenmarriott5772

4 жыл бұрын

Thanks

Why do we charge a system through the Vapor line?

Using ang a fieldpiece probes.

What's the name of the app sir?

@measureQuick

4 жыл бұрын

geloh DomRac MeasureQuick HVAC

good informative video, but you flush your refrigerant hose, wish you should do. But your shout off valve as a 1 foot hose extension to it that still got air in it. So you had none condensable into your heat pump. That 1 foot hose got some air in after flushing your hose, which there no shut off at the end of that hose, that absorb air after flushing?? Plus your evaporator panels is open, wish is affecting your charging an your super heat. OUTCH......

@measureQuick

2 жыл бұрын

The hose was purged at 4:30. There were no non-condensibles added to the system. The evaporator has a plexiglass cover for training. It is not open.

Just a home person watching...it seems impossible to access evaporator coils as necessary; inspection is one thing, cleaning is impossible.

@CombatFIFChuck

4 жыл бұрын

Yes, they are a huge pain and usually goopped up because they leak air otherwise. I try to rule out everything else before diving into an evap coil

you failed to purge your hose properly, you purged to the ball valve and then didnt purge the hose to the service port. good vid though

@measureQuick

4 жыл бұрын

Maui Kawi opening the ball valve pushes the air out of the ball valve all the way to the service port. There is no need to purge again or the other direction. The unit has a tee with a schrader.

@jrsmyth9761

4 жыл бұрын

@@measureQuick You are saying that the short hose after the ball valve, with no low loss fitting on it like you have, is not open to atmosphere?

@measureQuick

4 жыл бұрын

Tom Thumb yes, I pushed the atmosphere out with refrigerant. The air pushed out, the atmosphere will not enter the hose quickly.

@mauikawi4290

4 жыл бұрын

@@measureQuick no

@cleansebob1

4 жыл бұрын

@@mauikawi4290 Might want to show a little respect and consider the possibility that Jim knows a little more than you do. I suspect that he is saying that the rate of diffusion of the atmosphere back into the hose, and the rate of diffusion of the refrigerant out of the hose, when both are at equal pressures, is small enough in the short amount of time that it takes to attach the hose, that it is negligible. If you're worried about it, bleed it again once you've got the hose attached.

I love his videos but (due to time constraint) he has to leave out some important facts. Like when charging a system with a mixed refrigerants (like R410a) you have to allow 30 minutes for it to stabilize every time you add or remove refrigerant. But I understand his points.

@measureQuick

3 жыл бұрын

Who told you that? 15 minutes at most. If you are talking a heat pump with an accumulator that makes sense, but for straight cooling it 30 minutes is excessive.

None the A C technician the I hire done that

I think this video is made to discourage DIY.