A true Tradesman. Sharing what he knows, so other Tradesmen can benefit. Top notch in my opinion. I have been doing commercial and industrial service for 20 years, and I learn from and appreciate this channel. Gonna share it around, keep up the good work.
Push pull does take a couple more hoses and a little more time to set up but The amount of refrigerant your able to move is astonishing. Especially if your chiller holds 2600 lbs. I’ve never tried that first method you speak of, Gonna give that a shot next time.
I evacuated an old Trane chiller with pistons and unloaders using just using the recovery machine to the bottle and only seemed to pull half the charge. I pulled from the suction line, and the discharge service valve. Pressurized with nitrogen which held, pulled a vacuum to 360 microns and added the factory charged. Now my low side pressure is going really high quickly. Not sure what I did wrong.
My company’s low pressure recovery has different valves you can open and close to change direction for recovery. I push pull then swap valves to pull vapor. I can do 750 lb r 123 in about 5 hrs total
When recovering a low pressure machine and you switch to vapor, do you not need to relieve pressure from the vapor side of the tank with possibly a blow off valve?
In some instances you can’t drain or flow water. What we do is pull refrigerant to 35 degrees, stop recovery and let machine stand for 30 minutes, if pressure rises it still has liquid. Once it doesn’t rise it’s all vapor.
Just out of curiosity why can't you drain or flow water from the chiller when your recovering? I was always taught to flow water through a vessel or else the tubes will burst because there is no exchange of heat on the tubes
The Appion G5 is Not rated for low pressure and cant be use legally to recover r-123, if you talk to Appion they will tell you "use it at your own risk".
The method with the bottle before the recovery unit is neat, haven't seen that one before. Push pull doesn't look like it would be much quicker than that, short of keeping the pressure in the chiller maybe a little higher. Keen to see the comparison!
Push pull works like a charm, just recovered 1300 lb of r-123 from a YT, took me 4 hours. I dont see the advantage of hauling multiple tanks, a waste of time and energy in my opinion.
Since I work at Ford, I put my 1000 pound recovery tank in a deep vacuum. Just to see how much liquid It would take without my recovery unit. On a system with 725 pounds it took 370 pounds. Lmaooooo
I certainly wouldn’t use a residential recovery machine on a centrifugal chiller. You must be non Union. Check out Reftec, they make recovery machines that recover 10 -16 plus lbs per minute.
A true Tradesman. Sharing what he knows, so other Tradesmen can benefit. Top notch in my opinion. I have been doing commercial and industrial service for 20 years, and I learn from and appreciate this channel. Gonna share it around, keep up the good work.
Thank you for all your chiller videos. Please keep them coming.
This is exactly what i needed before my day tomorrow. Appreciate the info , great delivery!
I like to use push pull method.
Push pull does take a couple more hoses and a little more time to set up but The amount of refrigerant your able to move is astonishing. Especially if your chiller holds 2600 lbs.
I’ve never tried that first method you speak of, Gonna give that a shot next time.
Man you are awesome 👏🏼 ! thank you, for your videos. They are very helpful
I evacuated an old Trane chiller with pistons and unloaders using just using the recovery machine to the bottle and only seemed to pull half the charge. I pulled from the suction line, and the discharge service valve. Pressurized with nitrogen which held, pulled a vacuum to 360 microns and added the factory charged. Now my low side pressure is going really high quickly. Not sure what I did wrong.
Thanks and keep up the good work.
Thank you so so so so much. My crew and I appreciate you.
Your welcome
what is changing process can you make a video
wow very helpful video thank you so much hvac time
very helpful video thanks for the excellent explanation
Thank you sir, can you make it brief to recover vapour,and the hose connection using a Trane recovery unit.
Good job thank you for your time
Amazing thank you sir!!
You do a good job sir all the way around🙏🏼💯
My company’s low pressure recovery has different valves you can open and close to change direction for recovery. I push pull then swap valves to pull vapor. I can do 750 lb r 123 in about 5 hrs total
Which machine is that?
Video on how to Charge Chillers yet? What about Leak Search on Chillers?
THANK YOU VERY BIG SIR!
Great videos! Thank you for putting the time into them. Do you have any plans on doing any videos on glycol loops and ice banks.
Not in the near future
Great. Thank you❤
Thanks sir this is excellent. how to refill sir from tank to chiller please.
When recovering a low pressure machine and you switch to vapor, do you not need to relieve pressure from the vapor side of the tank with possibly a blow off valve?
No, if you run it through a subcooler it will keep temp/pressure down.
Good day . How can i contact you. im working on cruise line . if possible can u please help me in some technical things about chiller
Do you have sample video for actual procedure sir ? 😊
Ive had a few videos and shorts showing each method over time
hi, next video you can stop the chiller, then explain very noise
I prefer push-pull.
It adds heat and pressure to help push the liquid out.
In some instances you can’t drain or flow water. What we do is pull refrigerant to 35 degrees, stop recovery and let machine stand for 30 minutes, if pressure rises it still has liquid. Once it doesn’t rise it’s all vapor.
Just out of curiosity why can't you drain or flow water from the chiller when your recovering? I was always taught to flow water through a vessel or else the tubes will burst because there is no exchange of heat on the tubes
Do you use the G5 recovery machine? Or a bigger machine to recover low pressure systems?
We use a low pressure recovery machine. It is quite slow with a G5. I was mostly using that as a example.
which low pressure harvester model do you use?
@@jhonatanvallejo365 we have a custom built design from a company local to us.
@@HVACTIME show, when you can make a video for us, thanks.
@@jhonatanvallejo365 will do, I have shown the setup in previous videos.
Can you please upload a real video of the procedure in the field
When I have time sure
The Appion G5 is Not rated for low pressure and cant be use legally to recover r-123, if you talk to Appion they will tell you "use it at your own risk".
I pull deep vac on cylinders and put in tamdem, and first suck out as much liquid as possible
The method with the bottle before the recovery unit is neat, haven't seen that one before. Push pull doesn't look like it would be much quicker than that, short of keeping the pressure in the chiller maybe a little higher. Keen to see the comparison!
Push pull works like a charm, just recovered 1300 lb of r-123 from a YT, took me 4 hours. I dont see the advantage of hauling multiple tanks, a waste of time and energy in my opinion.
nice
Since I work at Ford, I put my 1000 pound recovery tank in a deep vacuum. Just to see how much liquid It would take without my recovery unit. On a system with 725 pounds it took 370 pounds. Lmaooooo
👍
push pull too time consuming changing all hoses around, still has its place
I certainly wouldn’t use a residential recovery machine on a centrifugal chiller. You must be non Union. Check out Reftec, they make recovery machines that recover 10 -16 plus lbs per minute.
Rat shop forever and always lol
Reftech sux