This is the best explanation I have come across on UA-cam on adding refrigerant to a central AC system. Thank you. I am a retired electrical engineer; I designed radio & TV stations, microwave links, and performed human exposure to radio frequency energy safety studies. As an engineer I like to understand other systems, so have been watching UA-cam HVAC videos. It's given me a better understanding of my home's HVAC system, and what the tech is doing during annual check up visits.
I looked around for someone that posted the "inner workings" of the AC gauges/manifold valve. This visualization is EXACTLY what I was looking-for. Pictures are truly worth a thousand words. The "logic" for proper usage is now thoroughly ingrained in my brain! A Big Thank You goes out to you!!
The BEST, there is no one of, just the BEST video about the gauge use in UA-cam!!! Thanks man! I thought the valve is for connecting to the gauge but actually it controls the connection between suction and charging! If I understand this then everything is understood! Other videos barely mentions this. You got to admit that very FEW people know how to teach!!!
This is really great. I am EPA certified but it has been several years since I worked on HVAC so this has been a great refresher course for me. Thank you so very much!
You make things very clear to me. I am a special education teacher looking for a degree in HVAC. You are a genius in your presentation. Keep up the great work.
Oh man the most Helpful video regarding the AC system of course for beginners I was searching online everywhere for this video I couldn’t find anybody else explained it Like that specially for people learning through vision so thank you very much very much for this This video for every person interesting Or home owners Please make more video in the future at the same simplistic way to understand Thank you so much
You have the best videos and do an excellent job explaining things! The graphics are very helpful. I appreciate you taking the time to share your knowledge!
4 роки тому
Drawings ae always better than just explaing and showing actual valves illistration is perfect way thanks
Thank you, such clear & easy to understand teaching. I've been an electrical engineer for 30 years & am now going to train as a refrigeration engineer. I will check out if you have any other videos.
Purge air in the service line of the manifold at the refrigerant jug after purging at the manifold on the liquid and suction line. Make sure you have the red or liquid line CLOSED and suction line open at the manifold open prior to purging the service port or yellow line. Aside from the purging of the service line, this is an excellent instruction for charging.
nice video I was always doing install work and was never taught service in detail they always had a different guy come in that mainly did service but good to see videos break things down simply and help ppl start to understand the proper ways as I'm going into the direction to open my own business so I been attending youtube college lol but Na I had a great Co worker he us like a teacher to me taught me alot of stuff thankful for him for doing that
Thank you for this video, I am new to this business and just want to recharge my AC. I just purchased the manifold gauge and noticed that it has two inputs to the flexible houses for each color, yellow, blue, and green. These extra inputs are located just behind the bottom inputs. Do you know the purpose of these? Also, there is some air left inside of the manifold gauge in case I use your purging technique, do you think it will be easier to purge the system from the red and blue housed into the yellow line before e it is connected to the refrigerant bottle? In this case, the valves need to be opened.
Great job, of explaining how it should be done properly, I had a new set of gauges and didn’t have 100% clear explanation on which way my lines should be hooked up? my AC gauge lines has a 45° curve in the fitting and the other ends are straight, and on the yellow line on 1 end it does not have a valve in it, wasn’t sure if it should go towards the gauge or away from the gauge? Thanks
Thank u Mr.Ron for your clear and great explanation. Just a question with keeping the discharge side of the manifold closed,How do i proceed to check the discharge pressure?
2:38 purging hoses. Would it be ok / better to leave the loose connections nearest to the condensing unit instead, and purge by opening the valve of the jug? This should be able to purge the manifold too, instead of just the hoses.
thank you for the nice explanation..and the regulation prohibit deliberate release of refrigerants to the atmosphere.. Should they be collected to a separate receiver when purging ?
So how would you purge the yellow charge/vacuum line if you only wanted to check the system pressures without adding refrigerant? I am trying to figure out about the air in the yellow line when the refrigerant is transferred from the manifold back into the system. I dont want to suck the air in the charge line into the system with the refrigerant. Thx
Does it matter whether you first connect your lines with the system off and once they are connected you turn on the unit to purge the lines or should the unit be running when you connect the lines and then proceed to purge the lines?
With blended refrigerants, like R410a, you must charge upside down (with liquid). You should have a metering device inline with your charging hoses so you don't flood the compressor. With R22 you should charge right side up.
Refrigerant 410A is so close to being a true azeotrpe it's not necessary to charge it only like as a liquid. Most guys use it almost the same as R22. The refer just does not fractionate (fractionize) like other blends.
Hence the need for a metering device is not needed. I use it mostly in liquid and I have no problem meeting with my manifold gauge. I think that's the way it is with most guys. I taught for 15 years and I understand the dilemma of presenting curriculum material and balancing it out with practical application.
Question: I thought before charging a system you have to pull a vacuum first. If this is the case, how does bleeding the lines help? It seems like any air in the lines would be pulled directly into the system as soon as they were connected...
4 роки тому
what would cause the r22 not to go in if done as you said i ghanged suction blue hoses and still not really taking it could the streter valve be defective
Can I hook up my gauges , open the bottle then untwist the valves up at the body until I get refrigerant, or is is necessary to crack them a little first. The reason I am asking is because the unit I am working on has king valves so I have to front seat the valves.
nice demonstration. if you are connecting a gauge set to a domestic refrigerator would you not end up with half the charge in your hoses ? how can you avoid this ?
Great video, If I wanted to just check pressure without connecting the yellow hose and using a cap on the port, what is the best method to bleed the air out between the high/low ports before sweeping the gauge set back into the system?
Very well explained, I only have one question though. Would you not turn your refrigerant drum upside down? or leave it valve side up? in other words valve side down or up? Only reason I ask is b/c I seen a service tech turning one upside down once and didn't really understand why he was doing that.
radcon821 Good question, you have to charge blended refrigerants in the liquid state (upside down drum). Shoot me an email at hvactrainingsolutions@gmail.com and I'll explain more. It is too long for a UA-cam reply.
Ron these videos have been very helpful...i had a question about the purge...can i purge when the compressor is turned ON...or does that make things worse cause it will start to suck in more air from outside ?
Nick Wall Hi Nick, you can hook up your gauges and purge running or not. Even though it is called the suction side, there is still pressure 70 to 130 psi depending on the refrigerant (R-22 or R-410A) so you don't have to worry about sucking in air.
This is a mandatory educational video for anyone working on any AC refrigeration work and especially Parker and Sons technicians, in Phoenix AZ who do not purge air and directly connect compound gauges and contaminate ac systems and sabotage the life expectancy of customers expensive AC systems
if you will use an adapter between the vacuum pump and refrigerant tank or can, you can avoid purging the yellow hose during the charging process. doing so will insure 100% vacuum of the unit that is being charge with refrigerant. you can buy this adapter from amazon or make one. it is like a y or t setup where you can close the line to the vacuum pump after you reached the correct vacuum reading. also by doing so it avoid wasting refrigerant and releasing it to atmosphere. i suggest all hvac, refrigeration, and appliance repair technicians should use this type of adapter setup. i have read something that even r134a refrigernat is not safe to the ozone layer of the earth atmosphere.
When you purge the hoses at setup,do you loosen the connecting flared fitting AFTER you hook the hoses up or BEFORE and then tighten them after you get that second or two of purging gush? Thanks!
Thanks Ron have Great Knowledge & an are Great instructor .Indeed Thank you so very very much ..for i have learned so much from you already & I do study HVAC almost ever single day .on bleeding hoses iv been doing HVAC /R for 26 + years but when i hook up to an system I always Now bleed thu the charging hose by cracking then close the low side usually 1 st then then the hi side gauge handles & let the air & a small tad of gas or liquid escape thu the end on the center / yellow or charging hose that way iam sure the gauge body & the hoses or entire system & setup are all bled
I didn't see you purge the new refrigerant and what happens if there air in the hose when your adding refrigerant? And what are the other fittings on the manifold for they are no open are they?
I have some questions. Virgin refrigerant cylinders contain only one port. What comes out of that port? Vapor or Liquid? Or is it uniquely mixed? Does it depend on the type of refrigerant? If you are charging by vapor, it shouldn't really matter which side you connect to, correct? I've charged recycled refrigerant by vapor through the hide side plenty of times. Never had an issue...but I do want to learn more. He states that high side pressure will always be higher than cylinder pressure. However, if you are going for a full charge, shouldn't the system but under no pressure, if not a vacuum? Assuming you pulled your system into a vacuum that is. Another thing I am used to doing is charging by use of recovery machine.
The suction line connection is after the expansion valve because that is where the LP side of the cycle begins? Could u please confirm this? Thanks My understanding is the metering device & expansion valve are two different names of the same thing & is located after the condenser to reduce the pressure? Please confirm? Thank you so much
Yeah great video. Now, 5/2017, my ac guy is using 427a. Some quick fixers will put it on top of 22. I think it might be worth just doing a conversion replacing the 22. Have you the latest, simplest method for this? Your thoughts. Thanks, subscribing....
Maybe someone can answer this. Using this purge procedure it appears to me that the volume inside the manifold is not purged since there is no flow through for and of the purges (low side, high side and center). Am I missing something? If we care about the volume inside the hoses why don't we care about the volume inside the manifold?
Assuming your gauges are connected in the same manner as in this video, the manifold is purged using this procedure because the hoses connect directly to manifold's respective side (blue to low side gauge, red to high side gauge, yellow to the service port). You don't need to open the manifold low or high side valves for refrigerant to get into the manifold because the hoses feed directly into the manifold without needing to touch the valves. The system pressure and refrigerant cylinder pressure are higher than atmospheric pressure, so they will displace any air that the manifold and hoses have inside of them once you open the hoses to atmosphere by slightly loosening the hose connections. For example, if your blue hose is connected to the outdoor unit and you want to purge the air, you slightly loosen the blue hose connection on the manifold until you see refrigerant start spraying. Once you see refrigerant, you'll know that the refrigerant displaced any air contained within the hose and the low side of the manifold set. The same will apply to the other ports on the manifold.
Hi! How do I recalculate/recompensate for the lost oil that goes with the refrigerant on recovery or loss? Is there any mathematical formula to determine how much oil is left on the system parts after the recovery?
I am a new tech doing commercial refridgeration and we charge up racks using the liquid line. Can anyone explain why these units are charged using the suction line ?
bob geore I think you can use either, suction is faster but I understand that its bad for the racks to charge through suction it sends a lot of liquid to the compressors. Any other input would be appreciated.
Avery Camden yea ok I think u might have to open and close the vavle constantly when charging that so the gas flashes off before it reaches the compressor but I might be wrong.
bob geore all I know is for commercial racks we either use liquid lines or go straight to the liquid header. We do put leftover vapor through suction because its quicker. That being said, given a residential unit is the same principal as commercial rack I still dont quite understand why he said to charge through the suction.
This is the best explanation I have come across on UA-cam on adding refrigerant to a central AC system. Thank you. I am a retired electrical engineer; I designed radio & TV stations, microwave links, and performed human exposure to radio frequency energy safety studies. As an engineer I like to understand other systems, so have been watching UA-cam HVAC videos. It's given me a better understanding of my home's HVAC system, and what the tech is doing during annual check up visits.
I looked around for someone that posted the "inner workings" of the AC gauges/manifold valve. This visualization is EXACTLY what I was looking-for. Pictures are truly worth a thousand words. The "logic" for proper usage is now thoroughly ingrained in my brain! A Big Thank You goes out to you!!
The BEST, there is no one of, just the BEST video about the gauge use in UA-cam!!! Thanks man! I thought the valve is for connecting to the gauge but actually it controls the connection between suction and charging! If I understand this then everything is understood! Other videos barely mentions this. You got to admit that very FEW people know how to teach!!!
I'm a first year hvac student at a tech school and the see through image of the gauge really helped. Thanks.
Didn’t MySpace make you enough money. Lol
This is really great. I am EPA certified but it has been several years since I worked on HVAC so this has been a great refresher course for me. Thank you so very much!
You make things very clear to me. I am a special education teacher looking for a degree in HVAC. You are a genius in your presentation. Keep up the great work.
One of the best videos on how to recharge HVAC. Thank you
You are truthfully an Outstanding Instructor. Thank you so much for your devotion in teaching.
Gosh Ken thanks very much!
Mr. Ron, thank once again I'm gaining knowledge to your shared online training, wish you have more blessings and most of all good health...
I watched several vids on how to recharge the A/C (for my own house) But this one is the best and makes it perfectly clear. Thank you very much.
Oh man the most Helpful video regarding the AC system of course for beginners I was searching online everywhere for this video I couldn’t find anybody else explained it Like that specially for people learning through vision so thank you very much very much for this This video for every person interesting Or home owners Please make more video in the future at the same simplistic way to understand Thank you so much
You have the best videos and do an excellent job explaining things! The graphics are very helpful. I appreciate you taking the time to share your knowledge!
Drawings ae always better than just explaing and showing actual valves illistration is perfect way thanks
Thank you, such clear & easy to understand teaching. I've been an electrical engineer for 30 years & am now going to train as a refrigeration engineer. I will check out if you have any other videos.
Purge air in the service line of the manifold at the refrigerant jug after purging at the manifold on the liquid and suction line. Make sure you have the red or liquid line CLOSED and suction line open at the manifold open prior to purging the service port or yellow line. Aside from the purging of the service line, this is an excellent instruction for charging.
Thanks for this vid I know I'm 6 years late but still very relevant and the best one I've seen!
You can explain very well. You are like a professional. Thank you
Thank you very much for your videos. I've gone thru a year of hvac course and still got one to go and your videos are helping me big time.
Best explanation I have watched and I have watched many thanks.
I loved it so much. Being a handyman, this is very educative. Thanks
nice video I was always doing install work and was never taught service in detail they always had a different guy come in that mainly did service but good to see videos break things down simply and help ppl start to understand the proper ways as I'm going into the direction to open my own business so I been attending youtube college lol but Na I had a great Co worker he us like a teacher to me taught me alot of stuff thankful for him for doing that
Good luck with your business
Thank you for this video, I am new to this business and just want to recharge my AC. I just purchased the manifold gauge and noticed that it has two inputs to the flexible houses for each color, yellow, blue, and green. These extra inputs are located just behind the bottom inputs. Do you know the purpose of these? Also, there is some air left inside of the manifold gauge in case I use your purging technique, do you think it will be easier to purge the system from the red and blue housed into the yellow line before e it is connected to the refrigerant bottle? In this case, the valves need to be opened.
I love your channel dude, this is a very clear explanation. Thanks
Great gauge information... Best I have seen so far. Ty
Great job, of explaining how it should be done properly, I had a new set of gauges and didn’t have 100% clear explanation on which way my lines should be hooked up? my AC gauge lines has a 45° curve in the fitting and the other ends are straight, and on the yellow line on 1 end it does not have a valve in it, wasn’t sure if it should go towards the gauge or away from the gauge? Thanks
Thanks Ron I'm in school currently Erwin technical institute your videos are a great help thanks once again!!
in tampa ? hows that going
+r4ym1n13 I finished school last month I'm working now to installs on new construction homes and trim work and installing condensers
Thank u Mr.Ron for your clear and great explanation. Just a question with keeping the discharge side of the manifold closed,How do i proceed to check the discharge pressure?
He answered your question in the video. Do you still need the answer?
Excellent job.... very nice explained. Very professional job.
Thanks a lot!
Just the video I was looking for and more. What an awesome video, thank you sir.
Very helpful 👍i just have a doubt ,should we put up side down the refrigerant bottle when we are adding refrigerant to the unit?
good video. this will help me out some. I am slowly moving over from install to service and start up
2:38 purging hoses. Would it be ok / better to leave the loose connections nearest to the condensing unit instead, and purge by opening the valve of the jug? This should be able to purge the manifold too, instead of just the hoses.
You can charge the high side with 410a liquid with a measured charge in an evacuated system and the compressor turned off.
Very nicely explained, particularly the functioning of the manifold.
This is the best overall definition l have found. Thanks.
Ron ...that's as good as it gets....excellent job......very well done
Great video, it was a please to watch and easy to follow along. Thank you for sharing the knowledge, and I wish you continue.
thank you for the nice explanation..and the regulation prohibit deliberate release of refrigerants to the atmosphere.. Should they be collected to a separate receiver when purging ?
So how would you purge the yellow charge/vacuum line if you only wanted to check the system pressures without adding refrigerant? I am trying to figure out about the air in the yellow line when the refrigerant is transferred from the manifold back into the system. I dont want to suck the air in the charge line into the system with the refrigerant. Thx
Great video, better then what I have seen online, thank you!!
Does it matter whether you first connect your lines with the system off and once they are connected you turn on the unit to purge the lines or should the unit be running when you connect the lines and then proceed to purge the lines?
great video last i done it was in technical school this video is a refresher thank you sir
With blended refrigerants, like R410a, you must charge upside down (with liquid). You should have a metering device inline with your charging hoses so you don't flood the compressor. With R22 you should charge right side up.
Refrigerant 410A is so close to being a true azeotrpe it's not necessary to charge it only like as a liquid. Most guys use it almost the same as R22.
The refer just does not fractionate (fractionize) like other blends.
Hence the need for a metering device is not needed. I use it mostly in liquid and I have no problem meeting with my manifold gauge. I think that's the way it is with most guys. I taught for 15 years and I understand the dilemma of presenting curriculum material and balancing it out with practical application.
it can be charged with comp running or no.
an experienced guy can do it either or.
Great video. Clear explanation, and very detailed.
Question: I thought before charging a system you have to pull a vacuum first. If this is the case, how does bleeding the lines help? It seems like any air in the lines would be pulled directly into the system as soon as they were connected...
what would cause the r22 not to go in if done as you said i ghanged suction blue hoses and still not really taking it could the streter valve be defective
Can I hook up my gauges , open the bottle then untwist the valves up at the body until I get refrigerant, or is is necessary to crack them a little first. The reason I am asking is because the unit I am working on has king valves so I have to front seat the valves.
Most most beautiful that’s what I was looking for Sir appreciated you make my all points clear great sir and thank you very much
Should you purge the yellow line of air too?
Great vid, well explained, great graphics....Really appreciated.
nice demonstration. if you are connecting a gauge set to a domestic refrigerator would you not end up with half the charge in your hoses ? how can you avoid this ?
Great video, If I wanted to just check pressure without connecting the yellow hose and using a cap on the port, what is the best method to bleed the air out between the high/low ports before sweeping the gauge set back into the system?
Very well explained, I only have one question though. Would you not turn your refrigerant drum upside down? or leave it valve side up? in other words valve side down or up? Only reason I ask is b/c I seen a service tech turning one upside down once and didn't really understand why he was doing that.
radcon821 Good question, you have to charge blended refrigerants in the liquid state (upside down drum). Shoot me an email at hvactrainingsolutions@gmail.com and I'll explain more. It is too long for a UA-cam reply.
Best explanation possibly could be done
thx for the video,if adding liquid to system with bottle r22 upside down can i do it through the low side?
Ron these videos have been very helpful...i had a question about the purge...can i purge when the compressor is turned ON...or does that make things worse cause it will start to suck in more air from outside ?
I meant on the low side line
Nick Wall Hi Nick, you can hook up your gauges and purge running or not. Even though it is called the suction side, there is still pressure 70 to 130 psi depending on the refrigerant (R-22 or R-410A) so you don't have to worry about sucking in air.
Do you have any videos on how to use a 4 port gauge manifold? I've been searching the UA-cam channel and Google but there isn't any videos on it.
Does the refrigerant tank need to be turned upside down
This is a mandatory educational video for anyone working on any AC refrigeration work and especially Parker and Sons technicians, in Phoenix AZ who do not purge air and directly connect compound gauges and contaminate ac systems and sabotage the life expectancy of customers expensive AC systems
if you will use an adapter between the vacuum pump and refrigerant tank or can, you can avoid purging the yellow hose during the charging process. doing so will insure 100% vacuum of the unit that is being charge with refrigerant. you can buy this adapter from amazon or make one. it is like a y or t setup where you can close the line to the vacuum pump after you reached the correct vacuum reading. also by doing so it avoid wasting refrigerant and releasing it to atmosphere. i suggest all hvac, refrigeration, and appliance repair technicians should use this type of adapter setup. i have read something that even r134a refrigernat is not safe to the ozone layer of the earth atmosphere.
this has been a great refresher course for me looking for curse that gives the exact reading thanks
When you purge the hoses at setup,do you loosen the connecting flared fitting AFTER you hook the hoses up or BEFORE and then tighten them after you get that second or two of purging gush? Thanks!
Is it necessary to have a kwik charge type of device while adding on the low side.
Thanks Ron have Great Knowledge & an are Great instructor .Indeed Thank you so very very much ..for i have learned so much from you already & I do study HVAC almost ever single day .on bleeding hoses iv been doing HVAC /R for 26 + years but when i hook up to an system I always Now bleed thu the charging hose by cracking then close the low side usually 1 st then then the hi side gauge handles & let the air & a small tad of gas or liquid escape thu the end on the center / yellow or charging hose that way iam sure the gauge body & the hoses or entire system & setup are all bled
thanks for the video. Question: Do you connect the gauges when the condenser is on or off?
Ron...your right! It is Confusing! I just Bought a Set of Gauges and I did not know until your Video what was going on inside the Manifold!?
I didn't see you purge the new refrigerant and what happens if there air in the hose when your adding refrigerant? And what are the other fittings on the manifold for they are no open are they?
Thank you, Great explained, visually is easy.
Can you please tell me what is the correct pressure for 1t split unit.
Thank you.
Hi, do you add refrigerant while the ac is running? Or no. Thank you.
I have some questions. Virgin refrigerant cylinders contain only one port. What comes out of that port? Vapor or Liquid? Or is it uniquely mixed? Does it depend on the type of refrigerant?
If you are charging by vapor, it shouldn't really matter which side you connect to, correct?
I've charged recycled refrigerant by vapor through the hide side plenty of times. Never had an issue...but I do want to learn more. He states that high side pressure will always be higher than cylinder pressure. However, if you are going for a full charge, shouldn't the system but under no pressure, if not a vacuum? Assuming you pulled your system into a vacuum that is. Another thing I am used to doing is charging by use of recovery machine.
Vapor is upright, and liquid you turn the tank upside down.
The suction line connection is after the expansion valve because that is where the LP side of the cycle begins?
Could u please confirm this?
Thanks
My understanding is the metering device & expansion valve are two different names of the same thing & is located after the condenser to reduce the pressure?
Please confirm?
Thank you so much
clear explanation thnx ! After this I finally understand how this all works and refilled my fridge at home !
At 4.04 in video the sensing bulb is at evaporator and not condensor ? Please clarify
Very good Information, Thanks Sir.
Yeah great video. Now, 5/2017, my ac guy is using 427a. Some quick fixers will put it on top of 22. I think it might be worth just doing a conversion replacing the 22. Have you the latest, simplest method for this? Your thoughts. Thanks, subscribing....
Does the system has to be running while is being charged?
Excellent step by step video.
Thank You! Great video. You've have made us that much more aware!
please sir i need help is it similar for compressor air dryer(refrigeration dryer) also ? i need your lecture on that
Can you do this again but with animated clips breaking it down to bullet points of numbered step?
Maybe someone can answer this. Using this purge procedure it appears to me that the volume inside the manifold is not purged since there is no flow through for and of the purges (low side, high side and center). Am I missing something? If we care about the volume inside the hoses why don't we care about the volume inside the manifold?
Assuming your gauges are connected in the same manner as in this video, the manifold is purged using this procedure because the hoses connect directly to manifold's respective side (blue to low side gauge, red to high side gauge, yellow to the service port). You don't need to open the manifold low or high side valves for refrigerant to get into the manifold because the hoses feed directly into the manifold without needing to touch the valves. The system pressure and refrigerant cylinder pressure are higher than atmospheric pressure, so they will displace any air that the manifold and hoses have inside of them once you open the hoses to atmosphere by slightly loosening the hose connections. For example, if your blue hose is connected to the outdoor unit and you want to purge the air, you slightly loosen the blue hose connection on the manifold until you see refrigerant start spraying. Once you see refrigerant, you'll know that the refrigerant displaced any air contained within the hose and the low side of the manifold set. The same will apply to the other ports on the manifold.
Hi! How do I recalculate/recompensate for the lost oil that goes with the refrigerant on recovery or loss? Is there any mathematical formula to determine how much oil is left on the system parts after the recovery?
I am a new tech doing commercial refridgeration and we charge up racks using the liquid line. Can anyone explain why these units are charged using the suction line ?
Avery Camden you ever firgured it out?
bob geore I think you can use either, suction is faster but I understand that its bad for the racks to charge through suction it sends a lot of liquid to the compressors. Any other input would be appreciated.
Avery Camden yea ok I think u might have to open and close the vavle constantly when charging that so the gas flashes off before it reaches the compressor but I might be wrong.
bob geore all I know is for commercial racks we either use liquid lines or go straight to the liquid header. We do put leftover vapor through suction because its quicker. That being said, given a residential unit is the same principal as commercial rack I still dont quite understand why he said to charge through the suction.
Well explained..well done bro !
Excellent, I HAVE NO WORDS NO QUESTION. THANK YOU.
Best explanation ever thank you
great video you cleared up some of the issues I wasn't sure about
Rich O Thank you very much!
Ron Walker 不加评论
You are awesome man! I am electrician and i understanding it imediatelly!
In 5 -10 seconds the pressure in the cylinder and low line will equalize, will it not???
Dear sr.
I have scroll comp sometime it is got the suction pressor is so high like 95 psig.and the didcharge pressour is too los.
how its is come.
Do u need to run the ac if its charging?
Leon Onitnelot yes
Is it that this system can only be vapor charged?
Great instruction thanks for sharing the knowledge.
Where can I find the measurements for 3 ton r22 house unit York system ?
Great explanations!
awesome video, just what we needed! thank you so much.
Great presentation, thanks.
thank you so much, very clear and practical.
Great job Ron!