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guppy_fish
Premium
join:2003-12-09
Lakeland, FL
kudos:3
Reviews:
·Verizon FiOS
reply to Cho Baka

Re: Removing Mini-split A/C-Heatpump systems

Its a EPA regulation and applies to all R12/R22 refrigerant based equipment. Its a 10k fine if caught ... lol of that ever happening

Just curious, I have never hear of people moving the split AC systems when they move, what state might that be in?


Cho Baka
Premium,MVM
join:2000-11-23
there
kudos:2
Reviews:
·TekSavvy DSL
I am interested in the technical side of the question only.

I have a lapsed automotive certification. I understand more than the basics, but there are obviously a few differences here.

I am in 愛知県。
--
The talented hawk speaks French.

bemis

join:2008-07-18
Reading, MA
Reviews:
·Comcast
reply to guppy_fish
said by guppy_fish:

Its a EPA regulation and applies to all R12/R22 refrigerant based equipment. Its a 10k fine if caught ... lol of that ever happening

Do these mini's use R12/22? I thought they were all using R-410 or 134a by now? Not saying you still shouldn't do it correctly, but I do believe those refrigerants are available over counter?

Have you called a service co to see what they'd charge? Maybe for $100 you can have a pro do it correctly (and potentially save your warranty if an issue comes up)?


Cho Baka
Premium,MVM
join:2000-11-23
there
kudos:2
Reviews:
·TekSavvy DSL
Warranty expired 3 years ago.

As long as I do this correctly, I am not concerned.
As far as I know, this one uses R22.

Regardless of what type it uses, I don't want to have to buy any refrigerant.
--
The talented hawk speaks French.


grobinette
Southeast of disorder
Premium,Mod
join:2001-01-27
Springfield, VA
kudos:2
Reviews:
·Verizon FiOS
reply to Cho Baka
said by Cho Baka:

I am interested in the technical side of the question only.

So lets keep the to the technical side of the question.
Thank you.
--
There's nothing like good food, good wine, and a bad girl
Expand your moderator at work


49528867
Premium
join:2010-04-16
Fort Lauderdale, FL
kudos:3

1 edit

1 recommendation

reply to Cho Baka

Re: Removing Mini-split A/C-Heatpump systems

I am not going to tell you how to do it, but I will tell you how it has been done.

Close the high side valve and leave the low side valve open, run the compressor for about 45-60 seconds (you can hear the compressor load up when it is reaching the end of the process) then while the compressor is still running close the low side valve and immediately shut down the compressor.

Crack open the low side fitting and allow the pressures to equalize (chances are you will have a zero pressure or a vacuum) once that is complete remove both lines from the condenser and tape the ends of the tubing shut to preclude the entry of contaminants.

Move the unit to the new location reconnect the tubing fitting up the high side coupling nice and tight but leaving the low side coupling finger tight, slowly open the high side valve allowing refrigerant to flow into the evaporator to purge the tubing toward the low side through the loose fitting for about 10-15 seconds of flow then make up the low side coupling nice and tight.

Power the unit up and test for proper charge by noting a cool and wet low side after the unit has been cooling awhile.

Now you’re all done.

Wayne

Corrected valve error.
--
It is sobering to reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence. - Charles A. Beard


printscreen

join:2003-11-01
Juana Diaz, PR
Reviews:
·Choice Cable TV
·Coqui/PRTC
said by 49528867:

Move the unit to the new location reconnect the tubing fitting up the high side coupling nice and tight but leaving the low side coupling finger tight, slowly open the high side valve allowing refrigerant to flow into the evaporator to purge the tubing toward the low side through the loose fitting for about 10-15 seconds of flow then make up the low side coupling nice and tight.

I have a mini-split unit at home that was previously at another location before it was given to me. I don't know how the process of removing the unit was done at the old location but the guy that installed it at my place used a vacuum pump to purge all air from the system before he opened the valves. I can't recall if it needed to be recharged a bit. I think it wasn't.


49528867
Premium
join:2010-04-16
Fort Lauderdale, FL
kudos:3
said by printscreen:

I don't know how the process of removing the unit was done at the old location but the guy that installed it at my place used a vacuum pump to purge all air from the system before he opened the valves.

That is the proper way of removing all air and more importantly moisture from a system that has been opened.

Wayne
--
It is sobering to reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence. - Charles A. Beard


iknow

@optonline.net
reply to 49528867
said by 49528867:

I am not going to tell you how to do it, but I will tell you how it has been done.

Close the high side valve and leave the low side valve open, run the compressor for about 45-60 seconds (you can hear the compressor load up when it is reaching the end of the process) then while the compressor is still running close the low side valve and immediately shut down the compressor.

Crack open the low side fitting and allow the pressures to equalize (chances are you will have a zero pressure or a vacuum) once that is complete remove both lines from the condenser and tape the ends of the tubing shut to preclude the entry of contaminants.

Move the unit to the new location reconnect the tubing fitting up the high side coupling nice and tight but leaving the low side coupling finger tight, slowly open the high side valve allowing refrigerant to flow into the evaporator to purge the tubing toward the low side through the loose fitting for about 10-15 seconds of flow then make up the low side coupling nice and tight.

Power the unit up and test for proper charge by noting a cool and wet low side after the unit has been cooling awhile.

Now you’re all done.

Wayne

Corrected valve error.

that is the way homeowners were allowed to do it years ago, now it's called releasing an ozone depleter into the atmosphere, as you'll lose some freon into the air. the OP didn't want to buy any.


49528867
Premium
join:2010-04-16
Fort Lauderdale, FL
kudos:3
said by iknow :

that is the way homeowners were allowed to do it years ago, now it's called releasing an ozone depleter into the atmosphere, as you'll lose some freon into the air.

Yes and that pony has been well beaten.

Wayne
--
It is sobering to reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence. - Charles A. Beard


49528867
Premium
join:2010-04-16
Fort Lauderdale, FL
kudos:3
reply to bemis
said by bemis:

Do these mini's use R12/22? I thought they were all using R-410 or 134a by now?

Most mini-splits have been R-22, however while most reputable manufacturers have moved to R-410A there are literally tons of R-22 mini’s coming into this country and can be found on e-Bay, CL, etc. being sold under lovely names like Air-Con.

Wayne
--
It is sobering to reflect that one of the best ways to get yourself a reputation as a dangerous citizen these days is to go about repeating the very phrases which our founding fathers used in the struggle for independence. - Charles A. Beard