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> Inverter aircon using non-inverter piping?

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gunshead
post Jun 10 2013, 11:11 AM

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lingleeyen
thank you for feedback
!gent's
post Jun 29 2013, 11:14 AM

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need your advice. if a non-inverter Aircon installed to the inverter type piping, is that ok or not ? need to worry anything.. ?
thanks
*CG*
post Jun 29 2013, 11:21 AM

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QUOTE(!gent's @ Jun 29 2013, 11:14 AM)
need your advice. if a non-inverter Aircon installed to the inverter type piping, is that ok or not ? need to worry anything.. ?
thanks
*
I am using R22 refrigerant air conditioners on inverter type piping. So far no problem.

This post has been edited by *CG*: Jun 29 2013, 11:21 AM
!gent's
post Jun 29 2013, 11:37 AM

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QUOTE(*CG* @ Jun 29 2013, 11:21 AM)
I am using R22 refrigerant air conditioners on inverter type piping. So far no problem.
*
okok...noted that. pheeew...relief than..

another thing about the gas copper piping horizontal line, it must be heading-downwards to the Aircon unit, anyone knows / can confirm that?

hmm.gif hmm.gif


reason is, the contractor said my piping outlet is facing upwards to the Aircon. So, the contractor must push very hard to tilt about it.
(I'm not talking about the water pipe)
thanks
aviecena2020
post Nov 30 2014, 01:31 AM

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So far any review or feedback if inverter air cond use with non inverter piping?
aviecena2020
post Dec 1 2014, 03:10 PM

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Anyone use inverter A/C with standard piping?
Any issue and feedback?
rae0724
post May 20 2015, 04:30 PM

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QUOTE(aviecena2020 @ Dec 1 2014, 03:10 PM)
Anyone use inverter A/C with standard piping?
Any issue and feedback?
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want to know too sad.gif
kutitata
post Jul 22 2015, 12:04 PM

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QUOTE(rae0724 @ May 20 2015, 04:30 PM)
want to know too sad.gif
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No aircond sifu?
SUSkimsim
post Jul 22 2015, 12:09 PM

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QUOTE(rae0724 @ May 20 2015, 04:30 PM)
want to know too sad.gif
*
If gauge less than G24 or G25 copper at bend junction will be break sometime

At least used G23 and above.

Check here
http://singapore-aircon-materials.blogspot...3/gfdg.html?m=1
SUSTXSim
post Dec 9 2015, 11:42 PM

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Inverter and Non-Inverter use different Piping.

dopp
post Apr 28 2016, 09:53 PM

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i'm using 1hp normal a/c at the moment, however the room is not cold enough
Therefore im thinking of upgrading to 1.5hp
But R22 A/C is difficult to find now........

Can i buy R410A (non inverter) and use back my piping?.. My piping all concealed , came with house. (5 years old).

I heard need to flush the pipe and make sure it is clean..
SUSTXSim
post Apr 28 2016, 11:34 PM

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QUOTE(dopp @ Apr 28 2016, 09:53 PM)
i'm using 1hp normal a/c at the moment, however the room is not cold enough
Therefore im thinking of upgrading to 1.5hp
But R22 A/C is difficult to find now........

Can i buy R410A (non inverter) and use back my piping?.. My piping all concealed , came with house. (5 years old).

I heard need to flush the pipe and make sure it is clean..
*
You can't use back old piping. Since different refrigerant.

You have to remove and replace new by installer.

This post has been edited by TXSim: Apr 28 2016, 11:34 PM
spreeeee
post Apr 29 2016, 05:26 PM

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QUOTE(dopp @ Apr 28 2016, 09:53 PM)
i'm using 1hp normal a/c at the moment, however the room is not cold enough
Therefore im thinking of upgrading to 1.5hp
But R22 A/C is difficult to find now........

Can i buy R410A (non inverter) and use back my piping?.. My piping all concealed , came with house. (5 years old).

I heard need to flush the pipe and make sure it is clean..
*
r410 piping is thicker..
Richard
post May 3 2016, 11:01 PM

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QUOTE(TXSim @ Apr 28 2016, 11:34 PM)
You can't use back old piping. Since different refrigerant.

You have to remove and replace new by installer.
*
Bad advice since you don't mention anything about why the old piping cannot use a different refrigerant..
SUSTXSim
post May 3 2016, 11:03 PM

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QUOTE(Richard @ May 3 2016, 11:01 PM)
Bad advice since you don't mention anything about why the old piping cannot use a different refrigerant..
*
Apa la awak!!!

This is Lowyat Forum. Not a place to argue.

Inverter and Non-inverter use different piping.

Since Non-inverter used thin pipe.

Inverter use thick pipe, as spreeee mention it.

Think properly before you post.

In Aircon Discussion V3.

No one posted bad advice like you.

You are junior member in Lowyat Forum, not senior member.

Post wrong or right doesn't matter, other people will correct it.

Don't think this is the place to get 100% answer.


This post has been edited by TXSim: May 3 2016, 11:09 PM
Richard
post May 3 2016, 11:19 PM

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QUOTE(TXSim @ May 3 2016, 11:03 PM)
Apa la awak!!!

This is Lowyat Forum. Not a place to argue.

Inverter and Non-inverter use different piping.

Since Non-inverter used thin pipe.

Inverter use thick pipe, as spreeee mention it.
*
Its a discussion, my brother installs aircon and (copy pasted)


QUOTE
R22 vs. R410a refrigerant

R22 refrigerant:

As of 2010 is no longer allowed to be used in newly-manufactured air conditioners
Contributes to the depletion of the ozone layer
Is less capable of absorbing and releasing heat than R410a refrigerant, making it the less efficient refrigerant
Is becoming more and more expensive as its use is phased out
R410a refrigerant:

Is approved for use in all newly-manufactured air conditioners
Does not contribute to the depletion of the ozone layer
Is better at absorbing and releasing heat than R22 refrigerant, making it more efficient to use
Requires the use of tougher and more durable air conditioner parts, which reduces the risk of your system overheating and breaking down


What is not mentioned is R410a used in Inverter Air conditioners runs at a higher pressure than R22 thus the need for thicker copper tubes..

But the regular R22 copper tube can still withstand that higher running pressure only it doesn't have the same safety factor of not springing a leak..

I would advice save money, use back the existing conceal copper tubes with the inverter aircon.. a properly installed R22 copper tube can easily handle the pressure ..

Edit* Just to add..

If you have an installer asking you to replace R22 piping it's not because there's anything wrong with the existing pipes..

My brother says the same thing to his customers all the time.. the installer (like my brother) makes more money ...
like i said he installs aircon..

This post has been edited by Richard: May 3 2016, 11:40 PM
SUSadvocado
post Oct 11 2017, 12:01 AM

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QUOTE(Richard @ May 3 2016, 11:19 PM)
Its a discussion, my brother installs aircon and (copy pasted)
What is not mentioned is R410a used in Inverter Air conditioners runs at a higher pressure than R22 thus the need for thicker copper tubes..

But the regular R22 copper tube can still withstand that higher running pressure only it doesn't have the same safety factor of not springing a leak..

I would advice save money, use back the existing conceal copper tubes with the inverter aircon.. a properly installed R22 copper tube can easily handle the pressure ..

Edit*  Just to add..

If you have an installer asking you to replace R22 piping it's not because there's anything wrong with the existing pipes..

My brother says the same thing to his customers all the time..  the installer (like my brother) makes more money ...
like i said he installs aircon..
*
hi there, since it's 2017, mind to ask are all current aircons sold in market (inverter/non-inverter) all using R410A gases? or by chance non-inverters still using CFC gas?

and anyway to check current piping if they are inverter ready? non-inverter pipes they use pvc, normal metal? inverter pipes use brass? so inverter pipes should look gold/bronze color?

and to figure out it's spec for R22 or R410a, we have to measure the inner diameter & thickness of the pipe (can only measure the outlet since bends are hidden).

and can you tell us the recommended inner diameter & thickness for both R22 & R410A gas? can R22 run efficiently on the bigger & thicker R410A pipe?

also i would assume it's safer to run smaller hp AC with R410A on R22 pipe as smaller AC have lower pressure output?

This post has been edited by advocado: Oct 11 2017, 12:06 AM
owj
post Dec 8 2017, 10:30 AM

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Just a question. if I want to install a non-inverter aircond using inverter piping I presume it is ok?
halcyon27
post Dec 8 2017, 11:39 AM

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QUOTE(owj @ Dec 8 2017, 10:30 AM)
Just a question. if I want to install a non-inverter aircond using inverter piping I presume it is ok?
*
Short answer definitely but the issue is not inverter or non inverter but what type of gas is used in the inverter or non inverter AC.

Mostly what's sold now uses R410a gas with R32 as the replacement over that. Older AC we grew up with uses freon and then R22 which was was phased out. R22 based AC are current install base in many homes but market available are now R410a and in appearing recently in small numbers R32.

Turning the question around should be what pipe thickness is safe for R410a/R32 based AC. Thus, it boils down to what thickness of AC copper pipe is able to withstand the operating pressure of R410a and R32 with a high margin of safety.

Thickness is stated in standard wire gauge numbers but now commonly in millimetres. Older pipes uses to be gauge 25 (0.51mm), 24 (0.56mm) or 23 (0.61mm). These are ok for R22.

R410/R32 however operates at 1.6/1.7 times higher pressure than R22. The minimum thickness recommended for their use is 0.71mm or 0.76mm but now many AC manufacturers specify 0.81mm minimum. There are AC pipe manufacturers do manufacture other thickness like 0.89mm, 0.91 mm or 1.0mm and higher. There are AC like multi split systems that could require thicker like 0.9 or 1.0mm or more. They are also used in [update: VRV] or in tandem with cooling and heating that are only common in European markets.

That said, follow the manufacturer specification in the installation manual. Panasonic and Fujitsu normally recommends 0.81mm pipe thickness for R410a. A good example is seen here.

This post has been edited by halcyon27: Dec 9 2017, 11:38 AM

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