Air conditioning - Any recommendations please?? - Part 2

[Lil_d3viLz]

Any aircon guru here?
I installed piping for my LG 5 ticks aircon. It was 9k + 9k + 9k + 18k.
If upgrade into 12k + 12k + 12k + 24k, will it be better?
I meant I am using the original piping installed weeks ago for the upgraded one.

I heard 9k and 12k shared the same piping size so it is ok to upgrade.
But i heard 18k and 24k pipings are different. Thus 24k will be working like 18k.

 

[terumo]

LG 24K & 18K pipe size is the same.

Any aircon guru here?
I installed piping for my LG 5 ticks aircon. It was 9k + 9k + 9k + 18k.
If upgrade into 12k + 12k + 12k + 24k, will it be better?
I meant I am using the original piping installed weeks ago for the upgraded one.

I heard 9k and 12k shared the same piping size so it is ok to upgrade.
But i heard 18k and 24k pipings are different. Thus 24k will be working like 18k.

 

[maxicooljason]

Any aircon guru here?
I installed piping for my LG 5 ticks aircon. It was 9k + 9k + 9k + 18k.
If upgrade into 12k + 12k + 12k + 24k, will it be better?
I meant I am using the original piping installed weeks ago for the upgraded one.

I heard 9k and 12k shared the same piping size so it is ok to upgrade.
But i heard 18k and 24k pipings are different. Thus 24k will be working like 18k.

Higher indoor BTU cools the room faster but that is provided that your outdoor unit is able to support. For example if the outdoor only supports up to 30K BTU, you can most probably switch on 3 x 12K indoor units at 1 time or 1 x 12K indoor units + 1 x 24K indoor units. This is unless you are installing a 2 separate system.

As for the piping size, I can see based on LG website, the existing LG models use 6.35mm (1/4 inch) liquid and 9.52mm (3/8 inch) gas for 9K and 12K BTU units and 6.35mm (1/4 inch) liquid and 12.7mm (1/2 inch) gas for 18K and 24K units so basically the pipings can be used. Your installer will be the best person to advice.

Pipings that are too big will result in insufficient gas compression and might trigger alarm code. Pipings that are too small has insufficient gas flow so indoor will not cool optimally.

 

[Lil_d3viLz]

LG 24K & 18K pipe size is the same.

Thank you for confirming.

Higher indoor BTU cools the room faster but that is provided that your outdoor unit is able to support. For example if the outdoor only supports up to 30K BTU, you can most probably switch on 3 x 12K indoor units at 1 time or 1 x 12K indoor units + 1 x 24K indoor units. This is unless you are installing a 2 separate system.

As for the piping size, I can see based on LG website, the existing LG models use 6.35mm (1/4 inch) liquid and 9.52mm (3/8 inch) gas for 9K and 12K BTU units and 6.35mm (1/4 inch) liquid and 12.7mm (1/2 inch) gas for 18K and 24K units so basically the pipings can be used. Your installer will be the best person to advice.

Pipings that are too big will result in insufficient gas compression and might trigger alarm code. Pipings that are too small has insufficient gas flow so indoor will not cool optimally.

Thanks for the explanation. Apparently everything is the same except cooling capacity. Salesman and installer also half bucket of water.
Noise level increased from 37dBA to 42dBA

 

[Jon1980]

Hi all,

Not sure if this is the correct place to ask, sorry if posted in the wrong thread.

Bought a second hand system 3 Aircon after my old one died. After installation I feel like the area in front of the Aircon feels colder (due to air flow direction directly) and other parts of the room feels like not covered. The temperature feels different at the other parts of the room. I don’t recall having this issue with my old Aircon, the entire room temperature feels constant.

Any idea what is the issue ? The room is at most 4m by 4m.

Thank you.

 

[binchotan]

Can i check with experts here, for all 3 bedrooms isz ok to use all 9btu and living room to use 18btu instead

will the living room be cool as is meant for 5 room bto unit

 

[maxicooljason]

Hi all,

Not sure if this is the correct place to ask, sorry if posted in the wrong thread.

Bought a second hand system 3 Aircon after my old one died. After installation I feel like the area in front of the Aircon feels colder (due to air flow direction directly) and other parts of the room feels like not covered. The temperature feels different at the other parts of the room. I don’t recall having this issue with my old Aircon, the entire room temperature feels constant.

Any idea what is the issue ? The room is at most 4m by 4m.

Thank you.

Several possibilities, might want to check on the BTU of your new indoor unit and compare it to the BTU of your older unit. See if it is a smaller BTU? Supposedly for a 4m x 4m room, 9KBTU should be sufficient however if the heat load of your room is high example morning/afternoon sun, aircon installed near to spot lights etc you might need a higher BTU indoor to cool the room effectively.

Another would be that the unit is dirty. Might want to take a look at the filters and wash them. When the unit is dirty you will usually feel that the air blowing directly from the unit is very cold but room cannot be cooled.

If this is just installed, you might want have your installer back to do a check.

 

[maxicooljason]

Can i check with experts here, for all 3 bedrooms isz ok to use all 9btu and living room to use 18btu instead

will the living room be cool as is meant for 5 room bto unit

This would depend on your room size, usage and the environmental factor such as design, morning/afternoon sun etc. For most BTO, 9K BTU is sufficient to support the bedrooms. Some might opt to install 12K in the MBR and 18-24K BTU for the living area.

Your appointed installer will be the best person to advice the BTU matching after looking at your floor plans.

 

[Brainful Smartass]

Can i check with experts here, for all 3 bedrooms isz ok to use all 9btu and living room to use 18btu instead

will the living room be cool as is meant for 5 room bto unit

Definitely 24k.
9k in bedrooms can easily fetch you lower temperature than 24k in living room.

 

[JuveZzZ]

4room open kitchen will 24k btu be sufficient?

 

[cowcowtan]

Hi Experts!

Got a quote as appended below. Is it ok? Some background, 5 room HDB and planning for 2 sets of system 3. Price aside, Is there sufficient cooling power?

Thanks in advance!

Mitsubishi new starmex system 3 - $3150 x 2 sets = $6300
MXY3G28/MSXYFN10 x 2/MSXYFN13

Panasonic inverter system 3 - $3000 x 2 sets = $6000
CU-3XS287UKZ/CS-MXS9UKZ x 2/CS-MXS12UKZ

** Note: Above price is for HDB/BTO


Stardard piping materials without upgrade
1. 16mm pvc drainage pipe with 1/4 inch thickness armaflex insulation.
2. 23g copper pipe with 3/8 inch thickness armaflex insulation.
3. Keystone/Sigma 3 core 40 & 70 wire.

Warranty
1. Compressor 5 year (Dealer warranty)
2. Other parts 1 year for (Dealer warranty)
3. Workmanship 2 year (Installer warranty)


April 2018 Promo Package

** $100 discount for System 3 /$150 discount for System 4 or choose no discount upgrade to 4 core 40
** Free Site Survey
** Free 2 trip installation
** Free upgrade to G22 copper pipe (Thickness and Hardness gas piping)

** Free upgrade to half inch Armaflex Insulation for copper pipe.

** Free dimantle and disposal old set aircon

** Limited 15 meter piping length per fan coil unit
** One time ac-hoc chemical overhaul with special rate for no units of install within 2 year- 30% discount per unit (Price different base on BTU)

** Free 1 times normal service for all fcu installed

** Promotion while stock last.

 

[terumo]

Pricing is reasonable.

Hi Experts!

Got a quote as appended below. Is it ok? Some background, 5 room HDB and planning for 2 sets of system 3. Price aside, Is there sufficient cooling power?

Thanks in advance!

Mitsubishi new starmex system 3 - $3150 x 2 sets = $6300
MXY3G28/MSXYFN10 x 2/MSXYFN13

Panasonic inverter system 3 - $3000 x 2 sets = $6000
CU-3XS287UKZ/CS-MXS9UKZ x 2/CS-MXS12UKZ

** Note: Above price is for HDB/BTO


Stardard piping materials without upgrade
1. 16mm pvc drainage pipe with 1/4 inch thickness armaflex insulation.
2. 23g copper pipe with 3/8 inch thickness armaflex insulation.
3. Keystone/Sigma 3 core 40 & 70 wire.

Warranty
1. Compressor 5 year (Dealer warranty)
2. Other parts 1 year for (Dealer warranty)
3. Workmanship 2 year (Installer warranty)


April 2018 Promo Package

** $100 discount for System 3 /$150 discount for System 4 or choose no discount upgrade to 4 core 40
** Free Site Survey
** Free 2 trip installation
** Free upgrade to G22 copper pipe (Thickness and Hardness gas piping)

** Free upgrade to half inch Armaflex Insulation for copper pipe.

** Free dimantle and disposal old set aircon

** Limited 15 meter piping length per fan coil unit
** One time ac-hoc chemical overhaul with special rate for no units of install within 2 year- 30% discount per unit (Price different base on BTU)

** Free 1 times normal service for all fcu installed

** Promotion while stock last.

 

[Guangjiu]

Hi anyone install Mitsubishi FN model at home? Does it cool down yr room quickly and really give u very cold feeling ... It's seem mine didn't ..

 

[cowcowtan]

Thanks Bro Terumo!

 

[Marcus Rashford]

For Mitsubishi air con n daikin, is it 10yr warranty as stated on some website. For 10 yrs what does it covers?

 

[DrSheldonCooper]

Hi guys. Anyone got any experience with these installers? They seem to have pretty good Facebook reviews.

Aircon Citi
https://www.facebook.com/airconciti/

Cold Engine
https://www.facebook.com/ColdEngine11/

Soon Lee
https://www.facebook.com/soonleeaircon/



Went to Gain City and Harvey Norman today. A bit annoying the salesmen keep pushing us to buy Samsung. no matter what product. Go see Air Con. Samsung. Washer/Dryer. Samsung. TV. Samsung. I think Samsung give very good comm for them?

 

[Smokey.B]

hi guys, which installer do u guys recommend?

is it possible for me to buy the air con only and get company like gain city to do installation only?

i am quite happy with gain city but saw this website, price seems good and company legit anyone of you have tried them before?

https://lifestyleguru.com.sg/

 

[Brainful Smartass]

https://lifestyleguru.com.sg/

For 5 ticks system 4

$4,480.00 That website
vs
$3,750.00 The price I got

$4,325.00 That website
vs
$3,850.00 The price I got

Don't see the "cheap"

 

[kaobulor]

Hi guys

Does anyone knows what's the main difference for Daikin smiles series ftks compared to the newer ctks series ? The price differ is about 1k for system 4.

 

[tmengyew]

Hi anyone install Mitsubishi FN model at home? Does it cool down yr room quickly and really give u very cold feeling ... It's seem mine didn't ..

FN seem like a new model , can i know your compressor and FCU model no. ?