Air conditioning - Any recommendations please?? - Part 2

[obichacha]

Can you share what does 3048 mean?

2.8kw x 3048 = 8530 btu , otherwise how you get BTU from kw output.

 

[LIN_JOEL]

update:

May I know what did you use to seal the hole? was it Silicon and it's nicely done.

And for the below photo, is it normal that the L joint not covered with insulator?

 

[dethangel]

How is fujitsu airstage? Looking at the black one. 5 years warranty looks interesting.

Will just post this here since majority favor MEC / Daikin etc.

Fujitsu isn't well liked by installers and aircon service guys due to the complicated nature design of the FCU.
Servicing companies charge more due to this.

Winfinity (agent) had also some part to play in this as well. Alot stating the agent is difficult to deal with/unreasonable.

Been using Fujitsu for the better part of 10-15 years.

Have 2 outdoor units:
1 system 2
1 system 3

My first system 2 non inverter served me close to 20 years before the compressors gave out.

Currently on inverter system 2 as well, coming to 12 years:
- only fault now is an outdoor unit fan motor issue (noisy)
- a thermistor fault which comes and goes (fixed itself )

Otherwise still damn cold.

System 3 - just konked after 15-16 years due to a pipe leak due to age.

During its years:
- thermistor failure
- board failure
- EEV issue

Lasted till now.

So now contemplating going back to Fujitsu or give the mainstream brands a go

 

[The_King]

May I know what did you use to seal the hole? was it Silicon and it's nicely done.

And for the below photo, is it normal that the L joint not covered with insulator?

me use this cause i got the gun also, then use finger to smooth it out.

good thing about this is, it thick and stay it place, so can build layer by layer like how 3d printer print

 

[The_King]

Will just post this here since majority favor MEC / Daikin etc.

Fujitsu isn't well liked by installers and aircon service guys due to the complicated nature design of the FCU.
Servicing companies charge more due to this.

Winfinity (agent) had also some part to play in this as well. Alot stating the agent is difficult to deal with/unreasonable.

Been using Fujitsu for the better part of 10-15 years.

Have 2 outdoor units:
1 system 2
1 system 3

My first system 2 non inverter served me close to 20 years before the compressors gave out.

Currently on inverter system 2 as well, coming to 12 years:
- only fault now is an outdoor unit fan motor issue (noisy)
- a thermistor fault which comes and goes (fixed itself )

Otherwise still damn cold.

System 3 - just konked after 15-16 years due to a pipe leak due to age.

During its years:
- thermistor failure
- board failure
- EEV issue

Lasted till now.

So now contemplating going back to Fujitsu or give the mainstream brands a go

please share once you confirm.


thankis

 

[ZacharyA]

2.8kw x 3048 = 8530 btu , otherwise how you get BTU from kw output.

So is 3048 a fixed number to convert KW to BTU?

 

[obichacha]

So is 3048 a fixed number to convert KW to BTU?

Please find out your own.
I have no further details, anything can refer on specification

 

[ZacharyA]

Please find out your own.
I have no further details, anything can refer on specification

I am just trying to understand the basis of multiplying the power by 3048. If you don't feel like sharing you can choose to ignore instead of telling me to find out on my own when the number came from you.

This is a forum ffs.

 

[obichacha]

I am just trying to understand the basis of multiplying the power by 3048. If you don't feel like sharing you can choose to ignore instead of telling me to find out on my own when the number came from you.

This is a forum ffs.

the corrected , refer on page 15 from Mitsubishi electric Brochure, now you understand where is the value came from.

 

[Cometdevil]

Tried searching for copper tube connection but did not really find answer.


For air con install is it acceptable to do copper tube joint brazing indoor area?
Also need to ask the person who do brazing for his cert or not

 

[The_King]

Tried searching for copper tube connection but did not really find answer.


For air con install is it acceptable to do copper tube joint brazing indoor area?
Also need to ask the person who do brazing for his cert or not

just get longer pancake if possible avoid brazing

 

[Cometdevil]

just get longer pancake if possible avoid brazing

Got other limitations. Not just length of the pancake..

I just worry cause I try looking for sg requirement for air con installer. Just vague say bca approved.

But did not say clearly each worker job function need cert boh...

 

[The_King]

Got other limitations. Not just length of the pancake..

I just worry cause I try looking for sg requirement for air con installer. Just vague say bca approved.

But did not say clearly each worker job function need cert boh...

A lot of aircon installer don't pride in their work and take shortcut.

If possible change fcu location or you can alway drill new hole for shorter path

 

[007Mi6]

I am just trying to understand the basis of multiplying the power by 3048. If you don't feel like sharing you can choose to ignore instead of telling me to find out on my own when the number came from you.

This is a forum ffs.

Hi, sharing a link. I cannot claim true or not true.



RT to kW

https://www.rapidtables.com/convert/power/ton-to-kw.html

kW to BTU

https://www.rapidtables.com/convert/power/kW_to_BTU.html

1 RT = 3.516kW

1kW = 3.412K BTU

in short, 1 RT = 12K BTU

RT kW BTU are different ways to see cooling capacity in different region. Just like miles vs kilometres

 

[Chevalier]

hey folks!


secured my EM and will be doing Reno in a few months.

looking to do a dual compressor systems 3 + 3 Aircon for it

also looking to place the compressor outside as the balcony will be glassed up and combined with the living room. I think there's 3-4 neighbors in my block who have done the same.

any recommendations on a good installer? thanks in advance!


Edit: I’ve reached out to letscool and newway. waiting for their response.

 

[networked]

just had my installation so far so good.

whats with the science and maths. aircon man is telling me mit starmex invertor on 1 fcu and on 2/3 fcu also same power consumption?

 

[obichacha]

just had my installation so far so good.

whats with the science and maths. aircon man is telling me mit starmex invertor on 1 fcu and on 2/3 fcu also same power consumption?

lol. Why not refer the Mitsubishi electric specification table chart?
on 1 FCU at minimum 620w, if on 2/3 FCU at 1200w something.

 

[LouisSaha]

For bedroom, is 9k btu good enough? Or i should opt for 12k btu?
Time to replace my 13 years old Panasonic aircon with Mitsubishi Electric.

 

[obichacha]

For bedroom, is 9k btu good enough? Or i should opt for 12k btu?
Time to replace my 13 years old Panasonic aircon with Mitsubishi Electric.

depend your fan coil unit position at where.
For example plate on toilet door or bedroom above door , get 12k , if direct blowing on bed. 10k good than enough. Energy saving some more

 

[networked]

For bedroom, is 9k btu good enough? Or i should opt for 12k btu?
Time to replace my 13 years old Panasonic aircon with Mitsubishi Electric.

just replaced my 13 yr old pansonic too. i think its batch shelf life.
currently 9k for bedroom is okay and more than enough.