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Using 2 Hp Aircond With 1.5 Hp Copper Pipe

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Hi Guys, my subsale unit previously had a 1.5 HP air cond in the living hall. I have since removed the unit and planning to install a new one as part of my renovation. I was looking at potentially obtaining a 2 HP unit instead of a 1.5.

Talking to a few people, they mentioned that potentially this will require modification on the compressor or something as the pipe size for 1.5 and 2 HP are different sizes and that this may potentially void the warranty. Just wondering if anyone here has had a similar experience or performed this type of modification before?

Not sure whether should I just stick back to a 1.5 HP or go for the 2HP. Appreciate your thoughts everyone and thanks in advance :sport-smiley-018:

Hi Guys, my subsale unit previously had a 1.5 HP air cond in the living hall. I have since removed the unit and planning to install a new one as part of my renovation. I was looking at potentially obtaining a 2 HP unit instead of a 1.5.

Talking to a few people, they mentioned that potentially this will require modification on the compressor or something as the pipe size for 1.5 and 2 HP are different sizes and that this may potentially void the warranty. Just wondering if anyone here has had a similar experience or performed this type of modification before?

Not sure whether should I just stick back to a 1.5 HP or go for the 2HP. Appreciate your thoughts everyone and thanks in advance :sport-smiley-018:

You can check from coolserve.com.sg they have alot specification to mention the copper pipe size.

I think for all those using R22 gas for the copper pipe is the same size to 2hp.

except latest model R410A inverter 1.5hp gas pipe is same as 1hp.

Edited by kimsim

  • Author
You can check from coolserve.com.sg they have alot specification to mention the copper pipe size.

I think for all those using R22 gas for the copper pipe is the same size to 2hp.

except latest model R410A inverter 1.5hp gas pipe is same as 1hp.

Thanks kimsim will check out the link :)

Thanks kimsim will check out the link :)

may i know what model for your living room now?

maybe i can check it out.

  • Author
may i know what model for your living room now?

maybe i can check it out.

Hi kimsim, it's currently using a LG model HS-C126

It's rated at 12,000 BTU which according to the shop it's 1.5 HP.

Guess it may go down to whether this unit uses 12.7mm piping. I noticed some Daikin, Panasonic and Toshiba 2.0 HP units seem to be able to use 12.7mm pipes. Not sure if my assessment is correct though.

Thanks for your help thus far kimsim. Appreciate it:)

Hi kimsim, it's currently using a LG model HS-C126

It's rated at 12,000 BTU which according to the shop it's 1.5 HP.

Guess it may go down to whether this unit uses 12.7mm piping. I noticed some Daikin, Panasonic and Toshiba 2.0 HP units seem to be able to use 12.7mm pipes. Not sure if my assessment is correct though.

Thanks for your help thus far kimsim. Appreciate it:)

ya it is can use with 2hp

cause 1.5hp gas pipe is same with 2hp, all are using 12.7mm Gas pipe.

don't worry anymore still can reused back with R22 gas non-inverter or daikin inverter R22 model,

it is able to use, before install the new unit make sure have to purg the existing gas piping and clean the drain pipe at well.

have a nice day.

Edited by kimsim

  • Author
don't worry anymore still can reused back with R22 gas non-inverter or daikin inverter R22 model,

it is able to used.

have a nice day.

Hi kimsim, thanks for the info :) Will check out the daikin inverter R22 models :)

Hi kimsim, thanks for the info :) Will check out the daikin inverter R22 models :)

you welcome.

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