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Air conditioning - Any recommendations please??

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Old 12-12-2016, 09:50 AM   #8911
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hello anybody can advise the following?

planning to get a system 3 for my BTO unit for all 3 bedrooms..

but now only me and my partner will be staying in the master bedroom and kids will probably come only after few years.

do you think we should just go ahead to install a system 1 for our master bedroom and install the other aircon units in the future when it's necessary?

we are not high usage aircon users. basically just use it for cooling down the room about 1-2 hours when we sleep or maybe 1-4 hours in the daytime if it's hot.
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Old 12-12-2016, 01:39 PM   #8912
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hello anybody can advise the following?

planning to get a system 3 for my BTO unit for all 3 bedrooms..

but now only me and my partner will be staying in the master bedroom and kids will probably come only after few years.

do you think we should just go ahead to install a system 1 for our master bedroom and install the other aircon units in the future when it's necessary?

we are not high usage aircon users. basically just use it for cooling down the room about 1-2 hours when we sleep or maybe 1-4 hours in the daytime if it's hot.
Hi,

1. Can you have more than one power points for the condenser (outdoor unit). If so, how many points are you allowed?

2. Do you have enough out door space for more than one condenser, if so, how many condenser space is available?

3. Do you really need 3 rooms with air conditioner?

4. What type of temperature are you comfortable with?
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Old 12-12-2016, 02:07 PM   #8913
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intend to purchase panasonic system 1 to be install in hdb flat 2 room. very small size.

was thinking if 9000 or 12000 will be sufficient?

and does anyone know of a reliable and cheap technician that can do installation? normally how much does new installation cost?

have concrete latch already.
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Old 12-12-2016, 02:15 PM   #8914
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intend to purchase panasonic system 1 to be install in hdb flat 2 room. very small size.

was thinking if 9000 or 12000 will be sufficient?

and does anyone know of a reliable and cheap technician that can do installation? normally how much does new installation cost?

have concrete latch already.
Hi

9k Btu is not the smallest capacity and therefore knowing your floor layout and ceiling height is good for estimation. In addition, is your room/s facing any afternoon sun and what is type of activity will you be having in your flat? A human body can produce lots of heat during a work out. One more, what is your set temperature?

Last edited by dachee; 12-12-2016 at 06:28 PM..
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Old 12-12-2016, 02:29 PM   #8915
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Hi

9k Btu is not that smallest capacity and therefore knowing your floor layout and ceiling height is good for estimation. In addition, is your room/s facing any afternoon sun and what is type of activity will you be having in your flat? A human body can produce lots of heat during a work out. One more, what is your set temperature?
thanks for the fast reply. not much of a activity, just sleeping...using computer etc.

it's a 3 year old BTO flat. low ceiling i presume.. standing at 1.71m tall can jump and touch ceiling with ease. not much of sun coming in either.. i hope that it can reach the 1 room and living room since the house is really small..
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Old 12-12-2016, 02:45 PM   #8916
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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.
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Old 12-12-2016, 04:14 PM   #8917
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1. not sure yet but i see my neighbours having 2 condenser already.

2. have enough for 2 condensers

3. to be frank, now no need..

4. for my current parents' house, i usually use 25 degC.

and thank you for replying

Hi,

1. Can you have more than one power points for the condenser (outdoor unit). If so, how many points are you allowed?

2. Do you have enough out door space for more than one condenser, if so, how many condenser space is available?

3. Do you really need 3 rooms with air conditioner?

4. What type of temperature are you comfortable with?
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Old 12-12-2016, 05:46 PM   #8918
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Posts: 393
Talking

Hello A/C experts,

I'm a new home owner (BTO, 4 room) who is in need of some expertise in selecting an appropriate A/C system for my home. There are many pages in this thread which I would be really keen to read, but alongside that, I'm reaching out to you for some quick wisdom.

Our flat is somewhat typical of the new BTOs these days. It has only been completed recently this year. Our renovation is going to be pretty simple, and the two biggest modifications that we're going to make to the house are:
1. Hack wall between dining area & kitchen, replaced with island counter (open kitchen)
2. Hack wall between service yard & kitchen, replaced with sliding glass door with tracks

It's just going to be my wife and myself in the house for now. Our activities (that require air-conditioning) will center mostly around the bedroom closest to the MBR (full study room), MBR, followed by the TV area.

We are not big-time aircon users, and will only turn on the aircon during haze season or hot nights. I estimate conservatively that we will only use about 3 - 4 hours of aircon per day in mostly 1 room, to perhaps 3 rooms at most in the far, far future. There may occasionally be a need for strong cooling in the living room/dining area during times when we have guests.

I'm thinking of a System 4 from Mitsubishi Electric for its ease of self-maintenance. The diagram shows where I intend to place the compressor and blowers. I'm under the impression that such a layout would be make it easier and neater during servicing. Our bed in the MBR will be orientated in a direction opposite to that shown in the diagram.



Some questions for your recommendations.
1. Inverter or non-inverter for power savings, quiet operation, etc.?
2. Split 3 + 1 or a System 4?
3. High BTU or something more mid-range? Could you suggest a rough number?
4. I'm trying to avoid placing blowers on top of beds. Would there be a better placement for the MBR blower that would still make it easy to maintain?
5. Is there a particular set of compressor + blower models that you would recommend?
6. I would like a high grade of insulation and piping to minimise the chances of condensation and pipe leakage. What are some recommended models/gauges that I should look out for?

Any advice will be greatly appreciated!
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Old 12-12-2016, 09:00 PM   #8919
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To Quantom,

1. Most brands are inverter model. Left with Daikin Non Inverter in the market.
2. Can go for system 4 or system 2 (Study + Master) (Living + Bedroom)
3. 18k/24k for living & 9k for bedrooms.
4. Your intended location look good.
5. SWG 22 Copper + Armaflex 1/2 Insulation.
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Old 12-12-2016, 09:44 PM   #8920
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I would like starmex mitsubishi 9k+9k+24k (5 ticks)

If such, can someone recommend me a single condenser that can handle this setup ?
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Old 12-12-2016, 11:08 PM   #8921
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Panasonic Sys 3 installation

thick 22swg piping
1/2 inch insulation
16mm pvc pipe

not include bracket

$2950

if daikin and mitsubishi electric add another around $100 can get it done...

Nice Deal?

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Old 12-12-2016, 11:17 PM   #8922
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Panasonic Sys 3 installation

thick 22swg piping
1/2 inch insulation
16mm pvc pipe

not include bracket

$2950

if daikin and mitsubishi electric add another around $100 can get it done...

Nice Deal?


"if daikin and mitsubishi electric add another around $100 can get it done..."

How many ticks?
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Old 13-12-2016, 08:32 AM   #8923
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1. not sure yet but i see my neighbours having 2 condenser already.

2. have enough for 2 condensers

3. to be frank, now no need..

4. for my current parents' house, i usually use 25 degC.

and thank you for replying
Hi,
1. Still good to confirm with HDB on the number of power points. Two wrongs do not make one right.

2. If 2 power points is possible, I suggest to start with a single split. You can expend later, save more money at the mean time and there may be newer model when it is time to buy another one.

3. Installation cost is based on individual combination. Install 2 condenser now or 1 first another later is no different.

3. Get one that is 4 to 5 energy label ticks.

4. Air conditioner can be operated in conjunction with a fan to help you feel cooler. The air conditioner cools the room with cold air that is blown out from its FCU. The additional fan cools you further with dry moving air passing your skin causing evaporation as the dry air from the air conditioner removes heat from your body. Fan energy can be very low, as low as your light bulb. In short, if 25 degree is your comfort temperature, you can set it above 25 degree and yet feels the 25 degree when using an additional fan.

Last edited by dachee; 13-12-2016 at 10:12 AM..
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Old 13-12-2016, 09:46 AM   #8924
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Posts: 976
Hi,
1. Still good to confirm with HDB on the number of power points. Two wrongs do not make one right.

2. If 2 power points is possible, I suggest to start with a single split. You can expend later, save more money at the mean time and there may be newer model when it is time to buy another one.

3. Installation is based on individual combination. Install 2 condenser now or 1 first another later is no different.

3. Get one that is 4 to 5 energy label ticks.

4. Air conditioner can be operated in conjunction with a fan to help you feel cooler. The air conditioner cools the room with cold air that is blown out from its FCU. The additional fan cools you further with dry moving air passing your skin causing evaporation as the dry air from the air conditioner removes heat from your body. Fan energy can be very low, as low as your light bulb. In short, if 25 degree is your comfort temperature, you can set it above 25 degree and yet feels the 25 degree when using an additional fan.
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.
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Old 13-12-2016, 09:49 AM   #8925
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Posts: 262
Hello A/C experts,

I'm a new home owner (BTO, 4 room) who is in need of some expertise in selecting an appropriate A/C system for my home. There are many pages in this thread which I would be really keen to read, but alongside that, I'm reaching out to you for some quick wisdom.

Our flat is somewhat typical of the new BTOs these days. It has only been completed recently this year. Our renovation is going to be pretty simple, and the two biggest modifications that we're going to make to the house are:
1. Hack wall between dining area & kitchen, replaced with island counter (open kitchen)
2. Hack wall between service yard & kitchen, replaced with sliding glass door with tracks

It's just going to be my wife and myself in the house for now. Our activities (that require air-conditioning) will center mostly around the bedroom closest to the MBR (full study room), MBR, followed by the TV area.

We are not big-time aircon users, and will only turn on the aircon during haze season or hot nights. I estimate conservatively that we will only use about 3 - 4 hours of aircon per day in mostly 1 room, to perhaps 3 rooms at most in the far, far future. There may occasionally be a need for strong cooling in the living room/dining area during times when we have guests.

I'm thinking of a System 4 from Mitsubishi Electric for its ease of self-maintenance. The diagram shows where I intend to place the compressor and blowers. I'm under the impression that such a layout would be make it easier and neater during servicing. Our bed in the MBR will be orientated in a direction opposite to that shown in the diagram.



Some questions for your recommendations.
1. Inverter or non-inverter for power savings, quiet operation, etc.?
2. Split 3 + 1 or a System 4?
3. High BTU or something more mid-range? Could you suggest a rough number?
4. I'm trying to avoid placing blowers on top of beds. Would there be a better placement for the MBR blower that would still make it easy to maintain?
5. Is there a particular set of compressor + blower models that you would recommend?
6. I would like a high grade of insulation and piping to minimise the chances of condensation and pipe leakage. What are some recommended models/gauges that I should look out for?

Any advice will be greatly appreciated!
Hi,

1. An inverter system is always better for temperature control, faster cooling, energy usage and noise level.

2. From your floor layout, There are two concerns.

2.1 The living room is opened to the dinner area and kitchen. There is no barrier. The air conditioner system may have to overwork to cool the whole area to the set temperature. With heat coming from your kitchen, in my opinion, this is not good.

2.2 The FCU in the Master Bdm is located above the toilet. It is normal that hot water is used during shower. This may cause water vapour from the toilet to condense on the cold surface of the FCU, causing water to drip.

3. The location of the FCU in the living room on the beam without a wall may have problem in laying the drain pipe.

4. If the drain pipes are going to be run in the flooring, it is good to have sufficient insulation to ensure that the drain pipes do not condense water. Otherwise you may face water dripping down your neighbour below and it is going to be very costly to rectify this problem.

5. Depending on the width of your wardrobe, the air flow of the FCU may be blocked and depending on the height of your wardrobe, the inlet air may be restricted in some way. However, these can be compromised with less than perfect outcome.

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

Last edited by dachee; 13-12-2016 at 09:56 AM..
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