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Air conditioning - Any recommendations please??

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Old 24-12-2016, 11:08 PM   #9031
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Hi dachee, I have read through the posts and your knowledge about air cons is really very impressive! I am thinking of following your suggestion of installing a single split air con for the master bedroom as the other two rooms are unoccupied until i have kids. If I install an additional condenser in the future, would it be very troublesome for the running of the pipes? My home allows maximum of 2 condensers. Thank you!
Hi,

Thks for the compliment.

The other 2 FCUs that you install in the future will have their own liquid and gas pipes (the small copper pipe is for the gas in liquid phase and the bigger pipe is for the gas in gaseous phase) and drain pipes as well as electrical wiring all enclosed in a plastic conduit or trucking within its room.

However, as the conduit gets closer to the condenser, they would likely meet each other some where along the way, and at this point, you would likely have 2 conduit, one for the current single split and another for the future 2 FCUs and its condenser.

This may not look nice to some people.

However, some people would box these conduit up within a cornice box or you canrequest the future installer to change the current conduit to a bigger one that can house all the pipes from the 3 FCUs.

There is no difficulties in running the pipes in future.

When you have kids in future, it may take some times before your kids sleep in their own room. This may take another 5 years or more.

The above are my opinion and hope that they are helpful.
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Old 24-12-2016, 11:42 PM   #9032
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Quick check with experts here. I just ordered Daikin Smile series system 3 for my 3 rooms BTO. 2 units x 9000BTU for bedrooms and 1 unit x 18000BTU for living room. My question is: Can the condenser unit MKS65QVMG with capacity of 21200BTU support this configuration? Thanks in advance.
Hi

According to the spec at: http://www.daikin.com.sg/images/medi...EFFICIENCY.pdf

yes, the condenser can support this configuration.

However, the MKS65 having a normal capacity of 21.2k Btu and max of 34.4k Btu has connections for 4 FCUs.

Your total FCUs capacity is 2 X 8530 Btu (Daikin don't have 9k Btu FCU) + 17060 Btu (Daikin don't have 18k Btu) = 34120 Btu. This is just below the max capacity of the condenser at 34.4k Btu. Note that the condenser will be running at full capacity with all FCUs turned on.

Depending on the shape of your living room, you may wish to have two 8530 Btu FCUs instead of one 17060 Btu FCU. This will help to cool your living room faster as well as giving a more balanced cooling. With two FCUs, you have a better option of direct cooling for certain sections of your living room by directing the louvers toward that area.

Having two FCUs for the living room may cost a little more for installation and one more FCU but the benefit out weight the extra cost. You also have the option of using only one FCU in the living room if your comfort temperature is not high and in that situation, running the FCUs in your room will not place the condenser in full running capacity.

The above are my option and hope that they are helpful
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Old 24-12-2016, 11:54 PM   #9033
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Hello. I paid $650 to have 2 aircon units relocated from Paya Lebar to Toa Payoh. I was quoted $800 by another company, and $1300 by Daikin.

I am not sure what materials were used. But the aircons (18000 btu and 9000 btu) are working well so far.

I didn't ask for any warranty. But their personnel told me if there is any water leakage over these few days, then I can feel free to contact them. He said if there is no leakage over these few days, then everything should go smoothly thereafter.
Hi,

$650 for two FCUs is reasonable but it depends greatly on the materials used and also that the installer comply to the manufacturer's installation requirement.

All installation with new materials should come with at least a one year warranty. All new liquid and gas pipes should not have brazed joint unless proper leak and pressure tests as well as proper purging are done.

The above are my opinion and hope they are helpful.
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Old 25-12-2016, 07:34 AM   #9034
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Hi,

Why get a 2 ticks StarMEX when there is 4 ticks system 1 (also called single split)

Should be below $1k. including installation in HDB and with materials according to manufacturer's requirement and some even better.
The 4 tick u say is the 5 tick model? Most places selling two and five tick models only if I'm not wrong.. the 5 tick model is more than 1k. Even the 2 tick one most r slightly above 1k hence asking for lobang.. u have any recommendations?
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Old 25-12-2016, 10:27 AM   #9035
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Hi,

$650 for two FCUs is reasonable but it depends greatly on the materials used and also that the installer comply to the manufacturer's installation requirement.

All installation with new materials should come with at least a one year warranty. All new liquid and gas pipes should not have brazed joint unless proper leak and pressure tests as well as proper purging are done.

The above are my opinion and hope they are helpful.
I wasn't aware of all these things. Should have come over to this forum to check with you!

I did see them use a Bunsen flame to weld some things. But I didn't know what was it for. Neither do I know if they use any new chemicals. I didn't ask for any warranty too.

In my case, the air cons were already taken down at Paya Lebar. So they just need to bring over the units and install them at my new place. So maybe it's cheaper that way. But the Daikin company guys quoted me $1300, and I thought that was crazy.

Overall, my experience with the company that I engaged is rather good. They said it will be good to service the aircons twice a year. I will probably go with them.
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Old 25-12-2016, 10:34 AM   #9036
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The 4 tick u say is the 5 tick model? Most places selling two and five tick models only if I'm not wrong.. the 5 tick model is more than 1k. Even the 2 tick one most r slightly above 1k hence asking for lobang.. u have any recommendations?
Hi,

The StarMEX single split 4 ticks is MSY-GE10VA / MUY-GE10VA. It is not a 5 ticks model. Search the internet, you should be able to come a cross some dealers selling this model combination at less than $1k include installation. Good to invite the installer to view the location of the FCU and condenser as some installation can be very straight forward due to the proximity of these two components.

However, there is a proximity limitation on how close these two components can be. Check the installation spec. and ensure that the installer add addition length of pipes if needed to meet the requirement.

In my opinion, it is always best to change all your pipes and wires when replacing your air conditioner with a new one.

NEVER NEVER accept brazing joint with new pipes. This is because, in Singapore, brazing is done without the use of nitrogen by many irresponsible installers. This leaves impurities in the pipes that are likely to cause components failure and expensive repair in future.

Get more information on this at: https://youtu.be/YcLoLbr3WSE

At times, you may have very irresponsible installer insisting on brazing a joint and in such situation, you have to insist that he do it with nitrogen or other ways without brazing.

As you are paying for new pipes, there should be no reason for the installer to joint the pipes. New pipes (coils) come in length of 15m, which is sufficient for most installation.

It is therefore important that you observe the installer when they insert the pipes into the insulation to check whether they had done any brazing on these pipes ( they do it to safe cost by jointing left over pipes collected from other installation). Once they insert the pipes into the insulation, it is difficult to inspect for brazing joints. So, inform the installer that you wish to inspect the pipes before they insert it into the insulation.

You will be at the losing end if you accept brazing joints. You have your right to insist that they use completely new pipes (coils).

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

Last edited by dachee; 25-12-2016 at 12:27 PM..
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Old 25-12-2016, 10:45 AM   #9037
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I wasn't aware of all these things. Should have come over to this forum to check with you!

I did see them use a Bunsen flame to weld some things. But I didn't know what was it for. Neither do I know if they use any new chemicals. I didn't ask for any warranty too.

In my case, the air cons were already taken down at Paya Lebar. So they just need to bring over the units and install them at my new place. So maybe it's cheaper that way. But the Daikin company guys quoted me $1300, and I thought that was crazy.

Overall, my experience with the company that I engaged is rather good. They said it will be good to service the aircons twice a year. I will probably go with them.
When they mentioned service twice a year, are they referring to cleaning or servicing?
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Old 25-12-2016, 11:14 AM   #9038
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When they mentioned service twice a year, are they referring to cleaning or servicing?
I am not sure. Should be servicing, I suppose. May I know what is the average price for servicing pls?
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Old 25-12-2016, 12:18 PM   #9039
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I am not sure. Should be servicing, I suppose. May I know what is the average price for servicing pls?
Hi,

It will be good to ask for a written job scope for the "servicing". Most air conditioner companies use the word servicing but in actual they only do cleaning job.

Such work can be done by anyone without the need for skill, even maids can also do it.

Now with easy clean in most models, cleaning is now easier.

So, ask for the job scope and quote.

The above are my opinion and hope that they are helpful
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Old 25-12-2016, 02:33 PM   #9040
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am i right that if your house has an old aircon system and I wish to upgrade. price will be more expensive than the prices on display?

is panasonic system 3 any good?
I'm using panasonic system 2 new 4 tick model CS-XS9RKZW x2/CU-2XS18RKZ got some issue with the nanoe g noise had replace the outlet twice but noise came back again after few weeks. not sure if older model have this problem or not. think old model is better.

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Old 25-12-2016, 04:25 PM   #9041
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Thanks for your advice! I am considering in getting a system 3 instead for the convenience of a single installation. My master bedroom is around 2.65 m2 [required BTU at 9041.8] while my other bedrooms are around 1.97m2 [required BTU at 6721.64]. Daikin CTKS25QVM has a cooling capacity of 8530 BTU. Will it be enough to cool the master bedroom or do I need the CTKS35QVM unit [cooling capacity 11940BTU]? By the way I have a DC ceiling fan in the master bedroom.
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Old 25-12-2016, 04:29 PM   #9042
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Hi,

It will be good to ask for a written job scope for the "servicing". Most air conditioner companies use the word servicing but in actual they only do cleaning job.

Such work can be done by anyone without the need for skill, even maids can also do it.

Now with easy clean in most models, cleaning is now easier.

So, ask for the job scope and quote.

The above are my opinion and hope that they are helpful
Thanks! Your advice is very helpful!
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Old 25-12-2016, 04:57 PM   #9043
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Thanks for your advice! I am considering in getting a system 3 instead for the convenience of a single installation. My master bedroom is around 2.65 m2 [required BTU at 9041.8] while my other bedrooms are around 1.97m2 [required BTU at 6721.64]. Daikin CTKS25QVM has a cooling capacity of 8530 BTU. Will it be enough to cool the master bedroom or do I need the CTKS35QVM unit [cooling capacity 11940BTU]? By the way I have a DC ceiling fan in the master bedroom.
Hi,

Is your bedrooms size given correct?

2.65m2 is only 1m X 2.65m, it is hardly possible to put a bed in it.

1.97m2 is only 1m X 1.97m, which is even smaller.

Pls counter check the sizes.
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Old 25-12-2016, 05:26 PM   #9044
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Oops sorry, I converted to cooling capacity required. Master bedroom is 13.25 m2 while normal bedrooms are 9.85 m2.
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Old 25-12-2016, 06:23 PM   #9045
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Oops sorry, I converted to cooling capacity required. Master bedroom is 13.25 m2 while normal bedrooms are 9.85 m2.
Hi,

The CTKS is the indoor FCU model number. Do you have your decided condenser outdoor model number? Need to pair them to check compatibility.
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