Refill air conditioner by R410A gas using single manifold after working hour (Part 3)

This recording show how to refill air conditioning fluid. Pressure should be between 120-130psi not 200psi as mentioned wrongly. Thanks for pointing it out!

[@paulejakita4116]

Thanks a lot, this video came in very handy

[@adnanahmad5875]

Nice vid...very loud and clear...👍👍☝

[@CityBoyLiew]

Remember to subscribe and turn on the bell for notifications.

[@lv5960]

Thank you !!! Very well explained

[@CityBoyLiew]

I’ll refer to this again when I need to do repair my AC.

[@bebanhaba8167]

thank you sir... such a good knowledge and technical for DIY... 👍👍👍

[@CityBoyLiew]

You are welcome. Remember to subscribe to this channel to watch more DIY guides.

[@bebanhaba8167]

@@CityBoyLiew alright sir already subscribe your channel... Please visit my channel if you have free time😊👌 thank you

[@ahmadizzazmohamadsofa5470]

Perfect video.. excellent

[@CityBoyLiew]

Thank you.

[@andyh8440]

I have 2 indoor units and 1 outdoor compressor. There’s 2 service valves on the outdoor unit. Which one do I connect to for 410a regas? Does it matter which service port I use for regas?

[@CityBoyLiew]

Normally the service valve has larger diameter. Check if both have same larger diameter. If that’s the case then each one are for each indoor unit.

[@andyh8440]

Thanks for the prompt reply! Yes I checked both service ports are the same size both with the schraeder valve. But do I need to recharge both ports as it’s only 1 compressor. Or just by using 1 service port it can charge the entire system.

[@thwaymaung]

Thanks a lot brother

[@CityBoyLiew]

You may use an ammeter to double check if the fluid top up is at optimum level.

[@pidasmimie5487]

Nice ...good video...

[@CityBoyLiew]

Also watch another video about fan motor not spinning. Video: kzbin.info/www/bejne/a3vMm5Jmn890ntk

[@IndependenceCityMotoring]

Most gauge sets include two gauges (blue and red)- what is the other red gauge used for and why is it not needed here?

[@CityBoyLiew]

3 horse power and above required. Household air conditioner normally does not required.

[@wenjunlim8303]

Hi, do you turn on the a/c while filling the refrigerant gas? Or turn it off?

[@CityBoyLiew]

AC needs to be turn on. Compressor need to be running as shown in the video.

[@raymondlooi]

Appreciate your efforts & very details! 1) Procedure will be the same for R22? 2) Any leaking issue after topped up?

[@CityBoyLiew]

Slight difference. No need to turn the tank upside down. R22 is gas form. Good point to also check leakage using bubble test. So far the unit is working fine. It was a quick fix around 7:45pm. Didn’t have time to perform bubble test after topping up. Thanks for pointing it out. I will normally perform routine check once every six months during summer break.

[@raymondlooi]

@@CityBoyLiew wow... You are expert! 🤠 I planned to grab those small size R22 (800g bottle) for the first try. Do you encourage me to get the smaller size one? About the leakage check, it seems easily to check (bubble test) at the outdoor unit (pipe joint). How about indoor unit? Do you mind to show us a little about it? Thanks in advance!

[@CityBoyLiew]

It depends how many ac do you have at home. I did lots of KZbin research before DIY. As usual, safety first. Be sure you have personal protective equipment like gloves, test pen, goggles. Don’t get injured. Double check if electricity is totally off. Some old unit require Allen key to release the check valve. I made two videos about indoor unit. Made the second very recent only. Try look through from video list.

[@raymondlooi]

@@CityBoyLiew That's cool! Thanks for the reminder 🙏🏼

[@samuelchowchow5104]

Hi hi, waa wondering u mentioned any reading between 110 to 200psi is low, seems like a great different mine read at 130psi is it low? BTW where u get ur gauge can't seems to find it. Thinking of DIY my top up. TIA

[@CityBoyLiew]

Try google for Acson hardware shop. I bought form those air conditioner hardware store. 130psi should works too. Actually need to also check current but need additional tool. Be caution to purge the hose to prevent death volume of air being sucked into compressor.

[@samuelchowchow5104]

@@CityBoyLiew thanks bro

[@CityBoyLiew]

The gas pressure will be high when the air filter is clogged. 130-140psi should be fine as long as it runs steadily when it is new. The fluid is also used for the compressor as lubricant as well as coolant. That’s why it needs to be top up from time to time.

[@pirategod92]

Bos...when u topping up gas,the aircond compressor set to on aa?

[@CityBoyLiew]

Shut close all the door and windows. Connect the gauge as shown. Purge the air in the tube then top up. The compressor will have suction pressure only after three minutes it has been turned on. The outdoor fan starts is the signal. But don’t need to top up immediately. Wait for the outdoor fan to spin at normalized speed only start to read the gauge. Top up only if necessary. Look for these tell sign again from the video to have a better idea.

[@markw3922]

can this be used on vehicle R134A system with correct quick coupler fitting ?

[@CityBoyLiew]

Need gauge for R134A and R134A fluid. Need to also check manufacturer data sheet for pressure to top up.

[@bennygimsiongleow4606]

Hi there, need to get rid of the air in the yellow and blue pipe b4 topping up? Same psi for 1 to 2 and above?

[@CityBoyLiew]

Yes, purging prevent death air volume in the hose from entering the compressor.

[@bennygimsiongleow4606]

@@CityBoyLiew any videos or link to show how to purge for both pipe?

[@CityBoyLiew]

Check the cover image. Point number one and two. Screw half way then flow gas from tank so that it pushes the air inside the hose out from the check valve. Then only to tighten the check valve screw.

[@bennygimsiongleow4606]

@@CityBoyLiew Thanks

[@mtay65]

Gas pressure is for reference only. Correct way is to check running current (read outdoor label) with a clamp meter when the compressor is at max load.

[@CityBoyLiew]

Thanks for the advise. Max load meaning set lowest temperature for indoor?

[@mtay65]

@@CityBoyLiew yes

[@ToothDoc2010]

The charging you did was in the vapour (gas) line, so why did you turn the pink r410a bottle upside down? This would mean liquid going in to the vapour line and damaging the compressor. The bottle should be upright so hence gas charging going in to vapour line.

[@CityBoyLiew]

The R410a variant is a mixture of different chemical blend in a specific ratio. Charging it with liquid (inverted bottle) helps maintain the ratio better than in gas state. Charging in liquid state is better in maintaining the life span of compressor. Open the valve slowly to allow liquid to be siphon out changing into vapor state once leaving the pink bottle. Turn open and close bit by bit until it reached 130psi and stable. It would normally takes roughly half an hour work.

[@CityBoyLiew]

An example of liquid turns into gas that happens on pressure cooker: Vapor turns into very hot gases state in pressure cooker kzbin.info/www/bejne/eX-3mHWagr-brZY

[@dimitrisfoti8962]

The air conditioning works on cold, hot or it doesn't matter. At what outside temperature is it recommended to charge with freon? For R32 what would be the normal value in PSI. Thank you!

[@CityBoyLiew]

It should be less than 120psi. Use an amp clamp to measure the optimum pressure required at maximum capacity.

[@rodelsantos45]

Can have a question what the air conditioning is 410 a and charge with freon gas r22 what is the caused thank and advance

[@CityBoyLiew]

It is like blood to a person. A type A blood person can’t be given B type blood.

[@rodelsantos45]

@@CityBoyLiew thank you very much I will flushing r22

[@CityBoyLiew]

Compressor designed for 410 can’t use R22 gas. It will damage the compressor.

[@Anil-Veeramangalam]

Thanks

[@CityBoyLiew]

You are welcome. Does it helps solve your problem?

[@michaelsolomon2534]

I appreciate your video broo, really need it rn... pls for a dual inverter R410a refilling, does i still charge to 120psi?

[@CityBoyLiew]

When the indoor unit coil is clean from any dust and the room is enclosed. The pressure should be around 120-125psi for this R410a. Partial of these fluid is also acted as lubricant for the compressor.

[@michaelsolomon2534]

Thank you bro🙌... i bought Lg dual inverter ac 1hp, i complained it didn't cool so much when after it was installed, an Lg man came and removed gas from the system and i complained knowing it's stupid and the company promised to take care of it stating it was wrong of the employee, they sent another over and he says he's going to vacuum the system and charge it at 120psi... they are using a chinese brand of R410a gas.

[@michaelsolomon2534]

Any advice bro?, the ac is just a week old

[@CityBoyLiew]

Oh…. I hope your problem is solved by now.

[@michaelsolomon2534]

Yes bro, but i found out LG in this region uses Chinese R410a, and i guess that's the major reason it doesn't cool so good, other than that it's energy saving claims are actually good. The system was vacuum and gas was refilled

[@johnrambo1294]

Boss for 1 HP panasonic inverter how much exactly for enough gas psi (R410a) and 1 more thing this single is for gas 410 32 gas only right

[@CityBoyLiew]

About 120psi for R410a. R32 around 115psi. This gauge for this two type of gases.

[@johnrambo1294]

120psi is standard 1 HP inverter for R410 gas pink

[@CityBoyLiew]

Correct. Remember to purge the air prior to charging. Refer video for procedure. Not good if death air is circulate into the compressor.

[@CGFUN829]

is it true that you have to vacum all gas befor refiling the r410?

[@CityBoyLiew]

Just top up will do.

[@tedlives2001]

How much psi for R32 gas should it be to refill split unit?

[@CityBoyLiew]

About 120psi. Almost same with R410a. Best to check ampere while refilling.

[@dongjaime8978]

Boss what is the brand this unit An can we ask boss General unit what gas we use?

[@CityBoyLiew]

Watch the video again. There is a label at outdoor.

[@Monagane1]

Only the R410a should be charged with the cylinder upside down.?

[@CityBoyLiew]

The cylinder will have instruction.

[@albertsew]

hi .....is 2HP aircond also between 117 to 200psi ?

[@CityBoyLiew]

Ideal to be at 120psi to 130psi. I think I mentioned wrongly to be 200psi. Yes regardless of the horse power. Amount of gas is larger as well as area.

[@albertsew]

@@CityBoyLiew thanks for your reply. wat about R22 gas, what is the psi range ?

[@CityBoyLiew]

R22 will be between 60-70psi will do.

[@HSQ786]

is this 1.0hp? mine is 1.5hp i find on other video they saying need to fill max 150psi....i m confuse...please advice ...thanks

[@CityBoyLiew]

Best is to use an ammeter. Stop once it has reached the optimum ampere. Normally around 120-130psi. Be sure the coil is clean. Door is closed.

[@HSQ786]

​@@CityBoyLiew... I didn't get the answer ..tis video for fillup 1.0 HP right..is 1.5 HP inverter Aircon have same 120psi gas or need to add more ?

[@CityBoyLiew]

It is using same type of gas?

[@okanefirenet6534]

require to turn on the aircond during charging ?

[@CityBoyLiew]

Compressor need to run at constant speed.

[@MaxMax-ti3xs]

Hello.. non inverter r410 also 120psi ?

[@CityBoyLiew]

Bare in mind, fluid pressure affected by surrounding temperature. At 30deg Celsius, R410A set around 120-140psi should work just fine while the AC is running. Ideally, charging by weight is the best way.

[@raymondlooi]

Bro. I was having fun of charging the refrigeration gas yesterday, haha. It seems successful! Now, let the AC run for 3-4 days then check again whether leaking?! BTW, when I detached the hose from charging port (gas input port), some yellowish oil came out with the gas! What does it mean? 🤷🏻‍♂️ (R22)

[@CityBoyLiew]

R22 need stable at 60-70 psi only. If it stayed within this range should will be alright. Refrigerant gas acts as cooling as well as lubricant for compressor.

[@CityBoyLiew]

I just fixed my outdoor fan motor issue today. Editing the video. Hope to publish by Friday.

[@raymondlooi]

@@CityBoyLiew does it mean, there is nothing wrong ( yellowish oil)? And, Everytime charging Gas, lubricant oil is inputting together with the Gas? (Yes, I charged till 60-70psi).

[@raymondlooi]

@@CityBoyLiew wow... Cool! Repair or replace? Aiyaya, I should video-ing also ya! Haha.

[@CityBoyLiew]

The gas will turns into liquid act as lubricant.

[@rolandchan1024]

Where do u get the r410gas

[@CityBoyLiew]

Those Air-Cond hardware shop.

[@vindis79]

Doesn't the pressure depend on the temperature?

[@CityBoyLiew]

Yes indeed. Try check pressure or top up during the same season of the year like summer morning every year.

[@rolandchan1024]

my unit is Mitsubishi unit. What is the required PSI? thank you

[@CityBoyLiew]

Gas model changes based on year. There is a label located around the unit. Try look for the label. Normally R followed by numbers.

[@CityBoyLiew]

The gas pressure depends on the gas used.

[@rolandchan1024]

@@CityBoyLiew mine is the R410. installed in 2016

[@CityBoyLiew]

Should be between 110-140psi. It is recommended to also use an ammeter for optimum gas pressure. Maybe I should made another video on this topic.

[@rolandchan1024]

@@CityBoyLiewwhere to buy this kind of pressure gauge

[@skenderkaculi9175]

Thanks okej

[@CityBoyLiew]

Welcome to check back for more informative video content.

[@thebossnadjib6781]

I did exactly what you said and it didn't made it cool , what could be the problem

[@CityBoyLiew]

Check ampere test see if it is at working range. Be certain that the gas is correct for your unit!

[@CityBoyLiew]

Is the cooling fan start spinning?

[@user617a6d6]

R32 what psi needed for 1hp

[@CityBoyLiew]

Suction pressure to be at 115psi. Charge slowly by turning valve on a little bit by bit. Test for leakage using bubble test after you have done charging. Pressure stabled at 115-120psi. Too high the compressor will shutdown automatically until cooled down again. Good luck.

[@user-pt6gk9cf7k]

Would u please i need to have a course with u cant i

[@CityBoyLiew]

Try to watch it again. Let me know which part you wish to know more. I try made another video to elaborate, if necessary.

[@shanejrwoo9744]

Bro changing gas pipe leak how? I charge 401 like u teach nowaday 1 mth charge once -.-

[@CityBoyLiew]

Definitely a leaks. Try bubble test at joint. Soap water and sponge/ brush and apply onto the coupling joint. Suspect a leaks. Charging every month it is because the pressure always very low?