HVAC 116 Charging with Auto low loss fittings on 3 port manifold

Continuing the series this is an introduction to adding refrigerant to a running AC system. This is specific for auto low loss fittings on a 3 port manifold. Next video will cover manual low loss valves.
Adding refrigerant to a running unit
Contamination free
Protect the compressor
Prevent Fractionation

[@delvirodriguez2182]

Man don't stop these videos they are helping me a lot. Good job!!!

[@OnePointLander]

Today I learned I need to tell my compressor "your welcome" when it thanks me.

[@realestateservicessaleshea99]

I have the qwick charger attached to my manifolds & I throttle it in. They where pretty specific (pierce Phelps) about 410A training. 🍺🍺🍺🥃🥃🍿🎯 Stay safe. Retired (werk'n)keyboard super tech. Wear your safety glasses!

[@alirahal5900]

Thank you Ty. As always an other well done video.

[@s.j.5850]

Great tips for us Newbies out there Ty! Your explanations are spot on & very helpful. As technicians we need to keep in mind the pressures we are dealing with & how they impact our charging procedures.

[@samersarah957]

Informative video Mr. Ty. If the system off is possible to use recovery machine to add refrigerant to the system? Thanks 🌾

[@love2hvac]

If the system is off add refregerants to the liquid side. You could use a recovery machine but the contamination factor is too high for me. It would be better to heat the tank. That video is coming soon.

[@realSamAndrew]

Where do you even buy the BUTYL gloves, I've never seen anyone using them in the field or in a video, and never saw them in a catalog or in the supply house? What about those who use the thick latex shop gloves, the disposable ones? Do those do any good with spraying refrigerant?

[@love2hvac]

I have never been able to find butyl lined gloves, I say for liability repeating because OSHA and EPA state it. I rarely wear gloves but Craig has convinced me to use nitride disposable gloves.

[@HVACRTECH-83]

When charging a system, then once your satisfied and disconnecting your hoses, if you put the liquid from your high side hose into the system, you will be slightly overcharging the system though ,correct? I was always taught not to do this after charging or setting up a new system. Only when checking a system and you didn’t have to adjust the charge. Is it not that big a deal then? I’ll also add that I’ve never used low loss fittings before. Whether it’s rite or wrong, I was taught from day one to never use them by my instructors and the techs I worked under as an apprentice. Thanks ty. I’m a licensed tech but I love to watch all your videos as I’m sure I wasn’t taught everything correctly during my apprenticeship

[@love2hvac]

Great points let me break them down. The liquid in the liquid line came from the unit, so we must put it back in the unit. I like to use short hoses so that has the least least effect on the system. It's unlikely the liquid from the liquid line will over charge the SH and SC much unless it's a critically charged system. There there is different set of rules. Low loss fittings. This video was with auto low loss but I prefer manual low loss with the valve. That video is next. You really need (manual or auto) ATLEAST on the high side. The liquid coming back out of that hose is dangerous. That is a large volume of liquid changing state and is an unesessarsay risk. Also if your are not charging a system you are taking that mush refregerants away from the customer every time you take the hose off. 2 times and it will definitely affect the charge of the system. The low loss also helps in keeping the hoses clean. Legally your suppose to have low loss fittings on all the hoses although there are no real enforcement. Hopefully that clears that up. Great questions Thanks for watching

[@peterrivas08]

I agree with the low loss fittings. I don't like them. Alot harder to purge. Using ball valves I can hook to refrigerant tank, open tank then open manifold and then for low side and purge air out completely. Then do high side.

[@HVACRTECH-83]

@@love2hvac thanks ty, to clear it up, I use yellow jacket hoses w the ballvalves on end. Maybe that’s what you mean by manual low loss. So I don’t get a big blast of refrigerant when I disconnect. Actually for the last year I’ve moved to Fieldpiece probes so I get even less.

[@love2hvac]

Great, those ball valves are considered low loss fittings. They are just manual instead of auto. I love my FP probes.

[@musakavalci9470]

Love it!!!

[@toolfanatic]

👍🏼

[@georgetsetsakos6088]

Thank you for another great video Ty! Quick question: when you bleed the refrigerant trapped in the service hose and hi pressure (red) hose into the suction port at the end would this extra refrigerant throw off your target subcooling and/or superheat? Seems like those two hoses could contain a few oz. of refrigerant. Or will this only matter if the system is critically charged and/or does not feature a liquid line receiver with modulating metering device? Please advise and thanks. GOD BLESS! EDIT: My question was answered with your response to an older comment below... LOL. The refrigerant in the hi pressure hose was taken from the unit and ends up back in it so it's not really a net increase. Brilliant.

[@robertl.7657]

Ty you save a lot of hands with this video!!! There's some people using regular gloves while connecting, disconnecting!

[@sirxjacquees]

For 4 years, listening to previous techs, agreed to charge/ stop for 10 (1../1000) seconds counting…. *feeling sorry for those poor compressors*. So far, no failed compressor, but will stop that process. Thanks Ty!

[@ori4640]

Ty, glad to see again your amazing videos, sharing your experience with others, thanks and good luck!

[@gustav9911]

8:40 please no !😂 I like your video and I learn much better than reading the book.

[@love2hvac]

I'm so glad somebody enjoyed that.

[@BryanRodriguez-pj6wc]

Amazing video thank you!

[@davebrown2728]

Thank you for what you do. I have been doing this a long time but never went to school. Luckily I have had good teachers in the field. I would like to support you when I can. Please let me know gowy.

[@davebrown2728]

How

[@peterrivas08]

Great video. But how come you didn't purge the manifold itself? You purged each hose. That's why I don't like low loss fittings. I like using ball valves.

[@love2hvac]

Yes sir! The next video shows both of those great points!

[@pointblankmatt6580]

isnt purging the middle hose the same as purging the manifold since theyre connected?

[@BartSimpson-nr1dy]

There is a much better, safer way. Buy an Imperial kwik-Charge. They’re inexpensive and the best way to assures a safe, fast charge without endangering the compressor.

[@love2hvac]

The problem is people rely on them too much and they open it up, the Kwik-charge is just a hole. So it can still allow a stream of liquid to the compressor. I finally found a sight glass for 3/4 line. When the weather warms up I will demonstrate this with all 3 brands of liquid chargers

[@BartSimpson-nr1dy]

@@love2hvac - the people who are relying on them too much are the people who should not be working in the refrigeration industry. I work directly for Scotsman Industries and have never had a problem metering refrigerant with the Imperial Kwik Charge. The people you’re talking about have no understanding of refrigerants nor should they be handling them.

[@adamedwards2435]

As a student if you didn't get hands on experience doing this you got scammed by this business 😂. Homeowners be careful who you allow to hook up their gauges to check the charge.

[@love2hvac]

This business?

[@adamedwards2435]

@@love2hvac School.

[@Ric_James]

Those are some terrifying palm pictures but a great reminder that you should do things the right way. Fantastic video as usual. Can’t wait to try this in the refrigeration lab next semester, just need to get my Ozone Depletion Prevention certificate first.

[@love2hvac]

use the 2 fingers and you will be just fine. The be gloves are just impractical. ive tried using them and you cant work the fittings. I harp on the class 2 fingers and we spend a few hours just taking the hoses on and off until it becomes second nature. Cupping your hands around the hose can really ruin date night...

[@Ric_James]

@@love2hvac Thanks for the pro tip. The date night being ruined exactly was my fear 😂 The gloves do look impractical and huge, almost like I’m going gardening. I can imagine they look like overkill. I’ll remember these tips for sure when my time comes!

[@blacksmith8642]

Sir, still waiting your video on subject of liquid refrigerant mix with oil in evaporator and compressor what's effects on All refrigeration cycle. Specific D,superheat s,superheat and subcooling . This video 📹 also very helpful for us

[@ezequielcrespo7046]

Why does all my techs say that you can't charge with low loss fittings ?

[@love2hvac]

Its lack of understanding. Generally people spend 10% of their lives learning and 90% defending what they think they know. People are also more likely to believe the way they first heard something. So if the person training them said this, then they are more likely to hold onto that. Auto low loss fittings have drawbacks. I prefer the manual valve low loss fittings over the automatic. As times change I now prefer probes where the hose is not an issue. Either way EPA regulations require a low loss fittings whether automatic or manual with hoses in HVAC use. Now the challenging partz transferring that information without hurting anyone's feelings 😬🤔😂

[@ezequielcrespo7046]

@@love2hvac so I'm guessing using it on the high side only all the time will be better so that I can use the low side for vacuum or can I use it on both and will it allow it to do a proper vacuum under 500 microns

[@love2hvac]

@@ezequielcrespo7046 You should have low loss on all the hoses but the manual ball valve style allowed for better flow. I have videos with the ball valve also. As for vacuum, it's not recommended to use your service hoses or manifold for many reasons. I have an entire series on vacuum and dehydration with multiple examples.

[@ezequielcrespo7046]

@@love2hvac ok thank you so much brother finally someone gave me an actual answer after 3 years lol