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Air conditioning - Any recommendations please??

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Old 13-12-2016, 10:09 AM   #8926
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hello.

1. if the powerpoint provided is only 1, i can ask my electrician to add another 1 too?

3. why do u suggest the 4-5 energy label ticks? thought 5 ticks would take longer to cool down the room compared to 2 ticks? i don't switch on for a significantly long time i think?

4. yeah i do use fan with aircon at my current house now at times.
Hi,

1. Depending on HDB rules and regulations. They may have current restriction. If allowed by HDB to have addition power point, then yes, you can get an electrician to add another one with new wiring from the DB. He cannot tap it from the existing air conditioner power point. Some air conditioner installer also provide such services.

3. It is not the length of time that you use the air conditioner. A 2 ticks is less efficient than a 4 or 5 ticks. Meantime that you pay more for using the 2 ticks than the 4 or 5 ticks for the same period of usage.

4. Good to hear that.

The above are my opinion and hope that they are helpful
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Old 13-12-2016, 10:19 AM   #8927
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right now i'm in a dilemma

it's either a 12000BTU panasonic system 1 or 9000BTU mitsubushi system 1. both cost me around 800ish, unless i can find a cheaper worksman that provide cheaper installation.
Hi, what is your room area that you wish to have it air conditioned? And are you using your computer for gaming and what is your desired temperature setting?
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Old 13-12-2016, 08:34 PM   #8928
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To thecat21,

You will be using all 3 @ the same time?
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Old 13-12-2016, 08:52 PM   #8929
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To thecat21,

You will be using all 3 @ the same time?
Most probably there wont be a case where all 3 is used at the same time.

Max use living room + 1 room at the same time.
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Old 14-12-2016, 03:22 AM   #8930
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Hi aircon noob here so hope the pros can help me out haha

#1 Can non master bedroom install a single split?
#2 Assuming allowed, what BTU/models are VFM for a smallish bedroom under 45m cube vol?

TIA!
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Old 14-12-2016, 09:47 AM   #8931
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4 Septs that you must Check to ensure that your Aircon is installed Correctly.

Hi,

Sorry, wrong spelling in the above thread heading. Should be 4 steps.... Can't edit the thread heading!

During the installation of your air conditioner equipment by your contractor, it will come to a time when the gas pipes are to be connected to the condenser and the gas in it will be released to operator the system.

At this stage, there are 3 simple checks that you can do to ensure that your system will last you a long time and avoid expensive repairs.

1. Before the installer connects the gas piping to the condenser and FCU, check that he purge the piping IF he had done brazing on that line. Normally, a "good" installer will pump nitrogen into the pipe while he braze the pipe to ensure that the inside surface of the pipe does not for copper oxide that will affect your system. More information can be found here: http://www.rses.org/assets/rses_jour...4_Nitrogen.pdf

However, if you are using new pipes, than there should be no brazing and only flare fitting joints are used unless installer "screwed up"!

2. After the installer connects the gas pipes to the condenser, he is required to vacuum the pipes to remove air and moisture inside it. NOTE that the DURATION of vacuuming is 15 mins or more. Many installer will do it for a very shot period or 5 mins (some don't even do it), specially when you don't time them. Proper vacuuming is important to protect the compressor, other parts as well as for effective cooling and for leak check.

3. After the 15 mins of vacuuming, the installer will have to close the low pressure manifold gauge valve (to make it easier for readers, look for the blue gauge and blue knob on the manifold gauge) and shut off the vacuum pump. AT THIS MOMENT, take a photo of the blue gauge focusing on the gauge pointer reading. Then wait for 1 to 2 mins and take another photo of the same gauge. Compare the position of the gauge pointer. If the position of the pointer has changed, even for a slight amount, is a sight of leaking some where in the piping or the manifold gauge tubing. The installer has to rectify this issue and redo the vacuum all over again. If this is not comply, you cannot confirmed that your system will not leak in the next 3 months time, one year time or even 2 years time when your warranty is over.

4. After the above point 3 is done accordingly, and the system is running, ask the installer to apply some soap and water solution over the service valve at the condenser to confirm that there is not leaking. If soap bubbles start to grow bigger at the valve, it is a sight that some thing there is leaking. The installer needs to rectify this and redo the soap leak test again.

The above are common practices that installers will normally skips from the manufacturer's installation requirements but can be very costly for you in future. Some installer may even argue with you for doing this, so get the understanding and agreement from the dealer that you purchase the system from that you want these steps to be done.

The above are my opinion and hope that they are helpful.

Last edited by dachee; 14-12-2016 at 10:25 AM..
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Old 14-12-2016, 09:57 AM   #8932
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Most probably there wont be a case where all 3 is used at the same time.

Max use living room + 1 room at the same time.
Hi,

Good to know whether 24k Btu is the appropriate size. Not good to over size the system.

More information on effect of over sizing an air conditioner:

http://acrightsize.com/files/7_reaso...a_bad_idea.pdf

The above are my opinion and hope that they are helpful.
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Old 14-12-2016, 02:53 PM   #8933
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Hi,

Good to know whether 24k Btu is the appropriate size. Not good to over size the system.

More information on effect of over sizing an air conditioner:

http://acrightsize.com/files/7_reaso...a_bad_idea.pdf

The above are my opinion and hope that they are helpful.
Hi, here is my floorplan.
The green outline is area of coverage.
The red indicates hacked wall.
I think for my case 24k BTU might not be oversize due to open concept kitchen + extended living room. What do you think ?

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Old 14-12-2016, 09:02 PM   #8934
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To thecat21,

Get a 30k btu outdoor unit will be sufficient.
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Old 14-12-2016, 09:04 PM   #8935
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To batuchka,

1) Should be able
2) 9k btu will be fine.
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Old 14-12-2016, 09:35 PM   #8936
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To thecat21,

Get a 30k btu outdoor unit will be sufficient.
Whats the price point of such a setup ? usually i only see system 3 that are
9k BTU x 3 + inverter etc
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Old 14-12-2016, 11:13 PM   #8937
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"if daikin and mitsubishi electric add another around $100 can get it done..."

How many ticks?
not necessary the tick cause seldom use it.. i need it to be reliable.........
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Old 15-12-2016, 12:47 AM   #8938
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To batuchka,

1) Should be able
2) 9k btu will be fine.
Thks! My initial research for single split indicates something like 1 year parts/labour and 5 year compressor? Why modern aircon makers dun dare give at least 3 years p+l lah lol Got good model with long warranty arnots ah?
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Old 15-12-2016, 01:10 PM   #8939
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To batuchka,

LG think have 5 years full warranty.
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Old 15-12-2016, 01:13 PM   #8940
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To thecat21,

Should be $3k+++

Can combo as 2 x 9k + 18k/24k.
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