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 Aircon Discussion V3, Home Appliance

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westlife
post Mar 10 2024, 08:36 AM

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QUOTE(Benefon @ Mar 10 2024, 08:14 AM)
R32 higher pressure than the R410a.
Basically can feel that fast cooling from start booster up time.
Colder not need lower temperature, that is good idea for energy saving.
R22 common temp on 20-23c
R410a on 25-26c
R32 on 26-27c
If your room size just around 3.5m x 4m for 1hp r32
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Serious? For R32 temperature must set higher to feel the same as the temperature set? Then the temperature sensor must have prob. 🤪
westlife
post Mar 10 2024, 11:01 AM

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QUOTE(stormer.lyn @ Mar 10 2024, 10:45 AM)
Take whatever this member says with a pinch of salt. There seems to be a disconnect between the actual knowledge and how this affects air conditioning.
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thanks. it makes more sense to me now after hearing ur explanation. tongue.gif
westlife
post Mar 12 2024, 07:10 PM

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QUOTE(ZeroSP @ Mar 11 2024, 01:51 AM)
Got a question, the developer installed a Panasonic R410 Multi-split (CS-4U4S34SBH) that supports 3 units of indoor (1 unit 2HP, 2 units 1HP).

If only using the 1HP inside room, the power consumption will still be much higher since no matter how the huge compressor is running?
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this is confirmed... comparing to split type, it will certainly consume more electricity.

and it is single point of failure. once compressor is having prob, the entire house has no aircon.

so far i hardly see developer gives this type of aircon system in bolehland. normally what can i see the way they save cost is to provide maybe only aircon for master bedroom and living room only instead of all rooms.

This post has been edited by westlife: Mar 12 2024, 07:13 PM
westlife
post Mar 17 2024, 02:06 AM

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QUOTE(GamersFamilia @ Mar 13 2024, 09:58 PM)
thinking to get a mitsubishi inverter aircond for my new apartment , but im not sure which model should i go for
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saw these two series during home fair.

GR is more ex than JS series, but in terms of energy label, efficiency is better if both can reach the set temperature. of course, GR series will save more electricity, depending if one wants to invest more at the begining i think.

738 vs 841 kWh per year of usage.
EER (Btu/h.W) 12.41 vs 8,871

too bad, as i am renting a house, i could not choose to buy a 5 star rating aircon, but can only use a 3 star one which it costs double electricity than the current selling inverter models... sad.gif

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This post has been edited by westlife: Mar 17 2024, 02:10 AM
westlife
post Mar 17 2024, 02:19 AM

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besides, the mitsubishi JV10VF aircon in my room got gas leaked until empty in dec 2023 when i moved in, i reported to the defect team to fix and now the aircon is working fine until now.

given that it has been working for 3 months now, it should have no further leaking issue on the piping etc. rite? if yes, the gas should leak again i supposed?
westlife
post Mar 17 2024, 10:02 AM

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QUOTE(stormer.lyn @ Mar 17 2024, 09:14 AM)
It could be possible the a/cond is still leaking. A leak could be very, very slow but you won't be able to notice for these 3 months yet, as the refrigerant has not dropped below critical level. Just keep monitoring
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Ok. Will monitor it still. becos the apartment unit is still under warranty period, can still claim defects.

QUOTE(GamersFamilia @ Mar 17 2024, 09:28 AM)
i think i will go for GR series , plus i will definitely save those photos , easy for me to remember the model number etc.  wink.gif
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Yeah. GR should be better. Noticed that JS series comes with quick cooling (within minutes) function but it does not come with easy clean design.
westlife
post Mar 17 2024, 12:47 PM

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QUOTE(bengyson @ Mar 17 2024, 11:12 AM)
The space need to be cooling is about 600sft open concept including staircase area. I would prefer single aircond instead of many units for aesthetic reason.
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But sure not efficient and end up wasting electricity, last time my landed house I also use one single 2.5HP non-inverter aircon at my living room (opened-concept that is linked to dry kitchen area, can never hit the the set temperature. And my electricity bill is high (of course it is also due to non-inverter so it lagi uses more electricity. If given a choice again, I will sure go for 2 smaller units instead although need to do another aircon point for that.
westlife
post Mar 17 2024, 01:10 PM

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QUOTE(bengyson @ Mar 17 2024, 10:56 AM)
Was told by aircond seller if continuous turn on for more than 9 hours then only consider for inverter else non inverter is good enough. Any advise?
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If u use one unit only, no pt to go for inverter, as it is unlikely u can hit the set temperature given the open concept. But if two smaller units, likely can set so for that case can go for inverter.


westlife
post Mar 18 2024, 07:13 PM

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QUOTE(bengyson @ Mar 17 2024, 10:56 AM)
Was told by aircond seller if continuous turn on for more than 9 hours then only consider for inverter else non inverter is good enough. Any advise?
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just spend a bit more to go for inverter will be better, weather are getting hotter from time to time.. and electricity rate may increase...

u save the moment when ur aircon is able to hit the set temperature, so it does not matter if u turn on 1 hour or 9 hours..
they said that just purely compare the initial cost u need to pay extra comparing to non-inverter.
westlife
post Mar 18 2024, 09:06 PM

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QUOTE(SitiNorhaliza1970 @ Mar 18 2024, 07:34 PM)
my friend also in pening now..just got the keys for her 1st home..
wanted to install airon but after thinking of forking out more to buy 3 units + the electricity afterwards..now downsize to only 1 ceiling fan..am sourcing for ceiling fans instead
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nowadays weather is so hot... without aircon, seriously very hard to survive. tongue.gif
westlife
post Mar 19 2024, 10:45 PM

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QUOTE(leanman @ Mar 19 2024, 10:28 PM)
Which is a better brand for aircond nowadays?
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Mitsubishi and Daikin are the kings of aircon always.
westlife
post Apr 19 2024, 09:22 PM

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What is the use of this tool?

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westlife
post Apr 19 2024, 09:23 PM

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QUOTE(ZeneticX @ Apr 18 2024, 02:35 PM)
One minor annoyance I have with Mitsubishi aircond (coming from Daikin), it seems the timer setting was not saved in the aircond or remote. Everytime I turn on aircond i have to press the timer button again to engage it, unlike Daikin where it will remember it and straight engage the timer everytime you turn on the aircond
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Mitsubishi I never use the timer function.
westlife
post Apr 19 2024, 09:24 PM

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QUOTE(ZeneticX @ Apr 18 2024, 01:24 PM)
2 or 2.5hp more ideal
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If late nite 1.5hp is sufficient but day time needs 2hp if the unit has no west sun.
westlife
post Apr 19 2024, 09:59 PM

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QUOTE(stormer.lyn @ Apr 19 2024, 09:35 PM)
1. Tells you the pressure (and thus the temperature) in the system
2. Multiple input/outputs so equipment or gases can be connected to
3. A system of valves that allow you to isolate the pressure system in the a/cond unit
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My master bedroom aircon has gas leaking on last dec 2023 which I reported defect to developer. They sent the vendor down to fix by refilling gas but after 4 months now the aircon is not cold again due to gas leaking.

I reported defect once more than and the vendor came to fix for the second time, I asked the guy what was the cause of the prob they said that there was gas leaking at the compressor side but they fixed now and refilled the gas again.

My question is how do I know if this had really been fixed? If assumed the leak is not fixed, another 4 months later I should expect the same prob?
westlife
post Apr 19 2024, 10:07 PM

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QUOTE(ZeneticX @ Apr 19 2024, 09:47 PM)
still if can afford 2hp or 2.5 better to just go for it. you cool the area faster letting the inverter kick in faster and save more energy also
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But compare to 1 x 2hp I would prefer to have 2 x 1hp af different parts of the living room instead.

I had used 1 x 2.5 hp instead in my living room Becos developer by default only gave 1 x aircon of and my living room and dry kitchen are opened concept. that time I did not opt for inverter Becos my living room was affected by west sun. even day time the 2.5hp is not enough to reach the set temperature of 25 degree and also becos there is only one unit of aircon and it is 2.5hp. My sofa which is directly back facing the aircon make me feel damn cold just for the spot. Very uncomfortable.

Even my current rented unit also same. The living room has only 1 x aircon pt and it is pointing directly at my sofa so at nite it can feel super cold just for the sofa area and towards super late nite can reach the set temperature Becos this unit no west sun but the unit is not inverter also.

So based on my experience, if can have 2 x units with smaller hp I will prefer it over the single big hp unit.
westlife
post Apr 19 2024, 10:29 PM

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QUOTE(ZeneticX @ Apr 19 2024, 10:12 PM)
yes 2 units definitely better but as you know and already mentioned, usually for condo and apartment we are limited by the points already provided. you want add extra unit means definitely involve hacking, not many owners would be willing to use exposed casing especially those own stay one. another factor is usually location where you can put compressor is also fixed by management and space limited
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Yes indeed. For those staying in apartment or condo like me is a no choice.

Luckily I do not stay in living room most of the time but just sometime so it is still not too bad. Most of the time in study room that it uses 1hp midea non-inverter aircon. So more saving of energy after all.

All the 3 aircons in the apartment I stay are not inverter, 1.5hp in living room, 1hp at master bedroom both Mitsubishi, only study room is 1hp midea. However, surprisingly the cooling capability of midea is better, it cold down damn fast and feel very cold. Comparing to it, the 1hp Mitsubishi in my master bedroom cool down slower, of course maybe becos master bedroom is bigger in size also. But overall find that even cheap aircon brand like midea actually is not too bad too.

Last time I always insist I will only use Mitsubishi or daikin aircon only.
westlife
post Apr 19 2024, 11:27 PM

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QUOTE(ZeneticX @ Apr 19 2024, 10:34 PM)
previously my master bedroom using 1hp Daikin non inverter, now upgraded to 1hp Mitsubishi inverter

initially will feel Mitsubishi seems to cool slower, but once it reached the set temperature the coolness felt constant throughout the night until morning. Now I feel the room is much cooler in the morning compared to the Daikin non inverter, set to same temperature @ 24c
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Yes. I agreed that once Mitsubishi inverter hit the set temperature, it is very constant and comfortable for sleeping. Just the cool down speed is way slower.

Inverter is good for more constant airflow I would opt for inverter again also if I am buying for my own house.
westlife
post Apr 20 2024, 09:28 AM

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QUOTE(Benefon @ Apr 20 2024, 08:02 AM)
ME inverter very comfortable sleeping, very quiet without annoying noise.
Usually I turn on 8pm till next morning. The dual light indicator when hit the temperature will be light off bottom led.
As usual 15-20mins for normal bedroom.
If living room should be much slower
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yup. Minimally 20 minutes and above for all the Mitsubishi aircon no matter inverter or non-inverter that I had used so far.

Inverter is certainly good for sleeping becos no constant stop start cycle.

QUOTE(Benefon @ Apr 20 2024, 08:05 AM)
Non inverter ac not good for those light sleeping conditions, once the compressor stop run , will awake for while until the compressor kick in again. That is super annoying, for those dead sleeping should not an issue, nothing to disturb them while sleeping

I am the light sleeping, anything noise will wake up in midnight or
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Yeah. For me I am not a light sleeper so not too bad.
westlife
post Apr 20 2024, 09:22 PM

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Midea aircon is actually not bad even comparing to more branded one like Mitsubishi.

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