Hey guys, what are some factors to consider when buying a/c units for new house? Buying about 5 units.

I only know horsepower, but actually more interested in energy efficiency & consumption - what are some of the good a/c for energy-saving?

Also appreciate if any other factors to conside (besides price)

looking to purchase a brand new air cond soon, thinking between Daikin and Panasonic. I'm a bit particular about choosing one that can save electricity but I was wondering, should I take note of the rated power consumption?

I understand that it will not necessarily run at that power all the time but when I noticed one particular Daikin and Sharp model with a 500+W power consumption instead of the usual 800+W, i was thinking of the possible savings I can get just based on that alone. Is this line of thinking faulty?

you mean those 3, 4, 5 star energy rating stickers right? on that note, i tend to find 5 stars only on inverters while non-inverters have 3 stars at most.
also, just wondering if you happen to know, do maintenance / service cost more for inverters vs non-inverters? and is the service interval for inverters lesser or about the same?

I'm in dilemma situation whereby I saw inverter 1.0hp aircond offers 11,200 BTU/hr at 0.9kW. My current 20 years old 1.5hp aircond most probably 12,000 BTU/hr at 1.3kW. So I'm thinking to replace with 1.0hp inverter, although it may run at max power 0.9kW, it still saves 0.4kW/hr, was this logical approach?

It's max power, rated I think around 0.7kW.
But traditional aircond compressor also run non-stop at full power and no problem? Coz my living room aircond will never stop and we blowing the air directly to us. Or inverter aircond not so reliable when running at full speed all the time?

Yes, I do agreed that, from the spec, the MSY-JP13VF model is not that energy efficient.
I do a filter among R32 1.5HP aircond, by sorting as EER, the model turns out has the least EER among all, even lower than non-inverter model.

[attachmentid=9991349]

All the EER in the spreadsheet that I shared are manually calculated using rated cooling capacity and input power.
I do this because those are the information that I can get.
Some manufacturers website do included EER information, and some do not, therefore I just do manual calculation.
If you do not trust manual EER calculated value, just ignore them in the spreadsheet.

All the EER in the spreadsheet that I shared are manually calculated using rated cooling capacity and input power.
I do this because those are the information that I can get.
Some manufacturers website do included EER information, and some do not, therefore I just do manual calculation.
If you do not trust manual EER calculated value, just ignore them in the spreadsheet.

so does inverter plays a big significance in electric saving compare to non inverteR?

Boss but for inverter to use less power by 37%

1) it cools down the room slower
2) have to on for 8 hour straight and above to achieve the save electric effect,

cons:
inverter board (as claimed by many aircond supplier) - once rosak have to fock up around RM600+ for the board?

Yalor. My Panasonic Inverter board out... after serve me almost 10 years.

Board expensive is 1 thing, not even got part for the old model... 

End up buy new non-inverter aircon. R32 Daikin. A bit not used to it, as when blow is too cold... at night... 

I have 4 units of Mitsu aircon (aged 1.5-3.5 years old) and the compressors for all the units have been giving trouble despite the warranty. Each time, have to get the installer company to check & they then get Mitsu technician to come over to verify again before changing the compressor. For each episode, the process takes 2-3weeks before i get the aircon working again with replacement compressor. 3 months ago when 2 units of the 1hp aircons started to konk & was making loud vibration sounds, I decided to stop messing with Mitsu. I  bought 2 units of Gree Lomo series aircon & I'm very happy with them. Fast cooling, silent & cheap. I came to know this brand while I was in China & was impressed by the cold air in my hotel room. Media, Hisense & Haier did not give me a good impression on their air cooling performance. My buddy also bought a Gree aircon about half a month earlier & he too was happy with it. In the past, I've used Toshiba, Hitachi, Panasonic & Sanyo aircons. Panasonic performs better than the other 3 Jap brands but lack of parts for old model & high price of current Panasonic aircon made me not to buy again. My inlaws were using Acson & York & performance is good accept more noisier. Today, my other 1.5hp Mitsu aircon stop working and I'm having hard time to get another Gree unit. Unfortunately, many shops are out of stock including Lazada due to the tax holiday.

Hey Peeps,

I'm urgently looking for this model:

Mitsubishi MS-GK10VA/MU-GK10VA 1.0hp R410

I'm told it is hard to find. Is it true? Please help. Will be much appreciated.

Cheers.

Planning to open a cafe in the normal shop lot, any aircon brand recommended? Should go for wall mounted or ceiling cassette? 🙏🏻 Thanks

I would go for Acson/Daikin cassette if I were you. More even distributed airflow than a wall type.
I thought cassette 2hp and above usually comes with built in pump?

Hi,

Seeking recommendations for A/C.
Looking for 2 A/C ( 1 for living room and another for main bedroom ).

Initially, was planning to get inverter A/C however, as the A/C will only be used sparingly, not sure if it is worth buying inverter or just a non-inverter wiould be enough.

Questions:
1. Which brand is better? Panasonic, Daikin or Sharp? Currently, using basic Panasonic model. So so only, wondering if other brands are better?
2. Inverter or non-inverter? Mostly will only use during night-time before sleep for a 1-2 hours to keep the place cool before turning it off.
3. Going to be renovating the house, the living/dining area is long and narrow. So planning to move the A/C to be on top of the window so that when it is turned on, it can blow cold air to the whole area and not just limited to the sofa ( currently it is on top of the TV, opposite the sofa area ). Would placing A/C above window be more inefficient since the thermostat may get affected by the warm air from the window?

Thank you in advance!

Hi, usually aircond blower outlet wind temp how much? After replace compressor feel my AC still not as cool as before, measuring about 18c on the blower outlet. Before this I never measure so don't know what is the suppose range. Technician told me the refrigerant pressure is around 150-160, R32 type, is this healthy range? Google saw should be higher 177 something above....

My room smaller 1hp AC with door wide open already 11c like that after running 15 mins...

Guys, is it normal to have evaporator coil cool and wet on upper part, 18c; but warm and dry on lower part, 24c?
Or it should be consistent cold and wet?

Brand P...
The technician came to vacuum the refrigerant again and refill it, if pressure set to standard 150 psi 4.5A at compressor, it's not cooling. Have to increases to 170 psi 5.1A like that only it's getting cooler.

I didn't climb up to measure the coil temp, the air was cool but not as great as before problem, also morning turn on aircond time will have water boiling noise at IDU for 2 mins.

Already 3.5 years unit, so left only compressor under warranty.

Few months back starting have symptom, if run higher fan speed and lower temp, the compressor will switch to very low power mode after just 5 mins of running, so I can only use higher temp 25c and fan speed 1, 2 for medium compressor speed. Then few weeks back starting not so cool, the air blew out just windy feel only, compressor refused to run higher speed already even set to lowest and full blast air. When technician came he said my gas pressure is too high at 190 psi so he releases to 150 psi, then is even worse the air blew out only 24-25c, he said it's normal but I told him it's not normal, then he proceed to claim warranty on the compressor. The strange part is why at the first place the pressure was high even though when newly install this aircond that time the technician only do measurement and didn't add refrigerant, and after years I also never get outsider to top up refrigerant also...

Manufacturer appointed 3rd party technician.