How to remove aircon, DIY option please...

[alknoll]

I'm moving to another flat and would like to take my Hitachi split system with me, but want to remove it by myself. What minimal tools's set would I need to get the job done.

[alknoll]

...and how to do it eee....which valve is what...etc...

[The Viking]

Sorry mate,

But this is a job for a professional with specialist tools.

[sedgy]

minimum tooles=bottle of ofn +gaugue
fridge gaugues,vac pump,oxy acc- for brazing, bending springs for bending the new pipes, new copper pipe, electricle cirtificate- to quolify to wire up a-c unit, experiance to do the job safely, do you kneed fridge handling cirtificate in your country?
just like viking sayes ,get a professional in,

[monkey spanners]

The 'diy' part is where you phone up the ac guy yourself

Also bear in mind that the money you save in removing it yourself, you may then end up having to pay extra to sort out any problems you have caused in the process.

Jon

[nike123]

minimum tooles=bottle of ofn +gaugue
fridge gaugues,vac pump,oxy acc- for brazing, bending springs for bending the new pipes, new copper pipe, electricle cirtificate- to quolify to wire up a-c unit, experiance to do the job safely, do you kneed fridge handling cirtificate in your country?
just like viking sayes ,get a professional in,

Come on guys!
He ask how to remove it, not how to install it again.

To Alknoll:

You need adjustable spanner key and 4 or 5mm hex (hexagon) key.
Turn AC ON to cooling mode. Remove caps from service valves and tighten (close in clockwise direction) first valve stem with hex key where smaller (in diameter ) pipe is connected after you hear that compressor is working. Then after 1 minute tighten valve stem where bigger pipe is connected and after that turn off your AC unit.
Remove fuse (or switch off MCB) and disconnect connecting cable and cut pipes with cutting pliers 10 cm from flare connection on outdoor and indoor unit (but before check that there is no pressure left in pipes by pressing needle with screwdriwer on service hose valve connection).
Protect cut pipes with electrical tape and proceed with dismantling of AC from his mountings.

If law in your country forbidden this, and you are afraid to make more damage than good, than do as other suggests.

[Makeit go Right]

Wait up a minute!

Put some safety glasses on before you go playing with that spannar, and a pair of good impervious gloves too. Fridge gas on your hands will burn the skin, and fridge gas in your eyes....hospital.

Over here in the UK/EU, the he-men all know about this but no one bothers to do it unless forced to by site safety personnel. Maybe it's fear that someone sees them and calls them "Sissie".

Whist it applies to all, a DIYer is more at risk than anyone, as things happen that he/she is not used to.

[Argus]

.





What you are proposing to do is illegal in the UK - without question.



Get it done professionally.



.

[alknoll]

Thanks Nike123
That sounds encouraging...
The thing I would like to know before I start to unscrew things is which valve is which:
(1) has three eee... what is the word for that...well it is like a letter 'T', where one is dead end, one is entering the outside unit, one is conected to a pipe that goes to the inside unit--smaller diameter pipe
(2) has four...like a cross: same like above but two dead ends--bigger diameter pipe
Then question is what is service valve?
The even more important question would be can I open the 'dead end' things without having the gas escape? Because I understand these are the 'service valves', right?
Why all this would be illegal?
Would it be ***** I would free in the atmosphere, right?
I just don't want the SOB landlord to get my one year cool AC.
And I could install it again with a help of a specialist?
Would I?

[coolstuf]

Legal or not (and it probably is illegal in Japan to work on ac without a license)If you have no experience with ac, get a professional, it will probably safe you money in the end.

[sedgy]

nike123, tell me why are you teaching an obviously none skilled person how todo a job he is obviously not qualified to do?

[philfridge]

nike123, tell me why are you teaching an obviously none skilled person how todo a job he is obviously not qualified to do?

Exactly the same thoughts here, a little knowledge can be dangerous !

[nike123]

nike123, tell me why are you teaching an obviously none skilled person how todo a job he is obviously not qualified to do?

Because that is not nuclear science!
Because that is how I started!

[alknoll]

the sentence is beauty in itself:

...why are you teaching an obviously none skilled person how to do a job he...

I don't mind to be not skilled, but to be 'none', well...

anyway, where do I put my adjustable spanner first???????
and where to stick my new hex????
and how to post a photo on this forum, because cliking photo icon results in: 'enter URL' and it tells me nothing

my hero is the engineer from 'Brazil', was he RE BTW?

[nike123]

Thanks Nike123
That sounds encouraging...
The thing I would like to know before I start to unscrew things is which valve is which:
(1) has three eee... what is the word for that...well it is like a letter 'T', where one is dead end, one is entering the outside unit, one is conected to a pipe that goes to the inside unit--smaller diameter pipe

Al that is service valve. Dead end is cap of valve stem. You could unscrew it without fear.

(2) has four...like a cross: same like above but two dead ends--bigger diameter pipe

Al that is service valve 2. Bigger dead end is cap of valve stem. You could unscrew it without fear.

Smaller one is cap of needle valve for service hose connection to control, charging, evacuation etc... You could unscrew his cap carefully to see if gas escapes and then remove cap if gas doesn't escape.

Why all this would be illegal?

I also dont see a reason.

Would it be ***** I would free in the atmosphere, right?

No, if you follow procedure exactly as I said.

And I could install it again with a help of a specialist?
Would I?

I strongly advise you to leave instalation to specialist!

I presume you are adult person and you are responsible for your actions. If you do anything wrong which could lead to injury or damage to unit or environment, that is your responsibility, not mine.

[nike123]

.

anyway, where do I put my adjustable spanner first???????
and where to stick my new hex????
and how to post a photo on this forum, because cliking photo icon results in: 'enter URL' and it tells me nothing

Read instructions carefully.

[airefresco]

Sorry but I agree with Nike on this one. This guy is going to do it anyway, so at least he stands a better chance of getting right with the information Nike has given. I don´t see how it can be illegal and it´s not hard to do.

Put the unit back in again is a completely different issue, for that I agree a professional is required.

[S_Line]

We only Re install systems that WE take out, It will be a struggles to find a company to Re install a system that has been DIYed taken out.
As they dont know that it works.

Im sure many have learned from the " Hey it worked fine before it was taken out " " Now it dosent work " lol !

[alknoll]

Hello,

Thanks a bunch to all and to Nike123 in particular.
Yes I am adult, yes I'll be careful, etc.
Thanks for care, and yes I didn't know it's dangerous...well, now I know.
BTW I wonder if there is a forum for Pyrotechnical Engineers?
Will drop a line how all this ended in a couple of days.
Thanks again for actionable data ie. a piece of intelligence...

[alknoll]

and how to post a photo???

[alknoll]

and one more please...
(1)after I tighten the second valve I unplug the AC, right?
(2)and what is 'MCB'?
(3)do I cut copper pipes on the side of outside unit only, or also on the side of the inside unit?
thanks again
{language is such a nice thing...}

[Ration_Tea]

I realized this is dead posts, but how is one person going to removing the entire units?

He talking about split-central units right?

[Bash1803]

Listen, get a professional to do it, if someone gets hurt doing something they are not familiar with, I'm sure no one will benefit.

We all know how rubbish those service valves can be, if the liquid valve lets by and Alknoll gets a face full of liquid, I'm sure no one else will sort his hospital bill.

No one is doubting peoples skill, just being unfamiliar with a specialist trade. We all learn from experience, but more often that not it's through making mistakes, i know I did!

[nike123]

and one more please...
(1)after I tighten the second valve I unplug the AC, right?

Yes!

(2)and what is 'MCB'?

MCB

(3)do I cut copper pipes on the side of outside unit only, or also on the side of the inside unit?

On outside unit only if you could easily get thru wall hole with rest of pipes.
If you cant, than on both sides (indoor and outdoor).

[nike123]

When you writing reply to message (or new message), windows open for your message writing and editing. In that window you have icon which looks like picture of Egyptian pyramids and sun. Click on that picture and insert link of your photo which is hosted (uploaded) on some picture hosting service like imageschack flickr etc..

[Frostycold]

Hi
Get Professional Help for the A/C!!!!!!!!!!!!!!!! If you insist on attempting to Destroy It Yourself you should first seek Professional Medical Assistance especialy that of a Psychriatric specialist & if you find a good one refer him/her to the A/C professionals that are attempting to help you injure yourself and others.
regards
Frostycold