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 Aircon Discussion V3, Home Appliance

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voscar
post Mar 17 2019, 07:29 PM

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QUOTE(DuitNow @ Mar 17 2019, 07:24 PM)
But hitachi model got frost wash and I have no idea what that is.
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could be something like this...

voscar
post Mar 18 2019, 08:56 AM

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QUOTE(sivanathan04 @ Mar 18 2019, 07:47 AM)
I saw few complain on daikin.sometime it depends on luck too u can't predict home appliance nowdays.i bought 2 daikin for my home 1.5hp ftkg inverter and 2.0hp ftkg inverter..Good air cond actually sometime it depends on installer too lousy installer u get lousy result..super cool and I'm happy with daikin..u won't believed the warranty claim is super good they change my aircond plastic cover for free because I complain for scratches.my house is single storey 2.0hp is in my living room mostly I set the air cond in dry mode 30 or 29 celcius very fast I can feel the cold same goes to cool mode but cool mode more cold obviously 😋..some old members here advice me to get correct btu for the area we need air cond.it actually works u doesn't need lower down the celcius and save electricity too..if really want to hear cons yup the compressor fan sound little louder.when new it's really quiet after few months it have little sound but not that bad.. I did a mistake too caused I install the compressor at my car porch because of single storey..I suggest u all install the compressor at roof or side if have space better far from room..the sound not that bad frankly speaking the placement of the compressor is important..Panasonic I heard it have some problem with the filter new model few people saying include seller that it can easily clogged other than that no issue..
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Well, I have Mr. D fixed-speed replaced by Mr. P inverter. Same hp surprisingly Mr. P's coolness better than Mr. D by a mile. Not sure why inverter more cooler. Nothing wrong with Mr. D's refrigerant as checked by their technician. Yeah, their after sales service is good and responsive, but there's nothing can be done on poor product design/part factor.. bye.gif

This post has been edited by voscar: Mar 18 2019, 08:57 AM
voscar
post Mar 18 2019, 02:04 PM

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QUOTE(halcyon27 @ Mar 18 2019, 12:00 PM)
Inverter have dynamic operation range besides rated at their HP. Can see their brochure which normally should state their specification for cooling range usually in x - y BTU  or  a-b kW. However these figures are hard to come by in R32 for certain manufacturers esp Mitsubishi Electric but are more prevalent in R410. You can use a converter to derive the BTU from kW.

Non inverters are fixed speed / frequency. So inverters save energy when reached set temperature (Fan speed Auto) as they will revert to a lower frequency to maintain temperature (partial load) whereas non inverters will cut out compressor allowing temperature to decay (rise) before cutting in.
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One question, s there any way to switch to Fan only mode on Panasonic inverter aircond? I only can get iAuto, Cool, and Dry mode from the remote control. Been practicing switching to Fan only mode once per week for 30 mins to dry up the cooling coil to prevent mold, fungus build-up. It's very disgusting to see those mushroom-alike mold when I did cleaned-up before CNY.
voscar
post Mar 18 2019, 03:19 PM

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QUOTE(DuitNow @ Mar 18 2019, 03:09 PM)
I cant see the compressor from where I am. But the compressor also clean the same time the aircon is clean.
Cant its the design, no place to put the compressor.
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You stay condo is it? If landed can put on rooftop
voscar
post Mar 18 2019, 04:14 PM

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QUOTE(DuitNow @ Mar 18 2019, 03:25 PM)
Not condo. Here those who didnt built a balcony all put beside the window like mine.
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Suggest you don't follow the trend if you sceptical on the compressor noise, especially for night sleep... Place to the rooftop
voscar
post Mar 18 2019, 07:05 PM

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QUOTE(WhitE LighteR @ Mar 18 2019, 02:48 PM)
Panasonic premium inverter goes into Fan only mode automatically every x hours of operations. I not so sure for regular inverter model. U don't need to manually do this. Just make sure u don't off the main switch when it does so. U can know it is in this mode when the flaps are partially open once u turn it off. It will turn on to do this cleaning mode n turn off once it's done
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This feature is it? Seems applicable to nanoe-g model only. Mine just standard inverter...
I not sure if turning temperature to 30'c at Cool mode will trigger Fan only mode or not. Need to try out to see..


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voscar
post Mar 20 2019, 10:10 AM

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QUOTE(zizheng @ Mar 20 2019, 09:06 AM)
so i changed the PCB, both sensor coils, capacitors for both indoor/outdoor.
the problem still persists. compressor doesn't shut off unless the temperature is set at 28-29C.
any ideas sifu? or need to replace d?
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this is normal, your compressor shuts off itself at 28-29'c means the temperature control is fine, you can always adapted and set 28'c if compressor on-off cycle is your comfort zone.
I've encountered temperature control gone haywire before, compressor would shuts off at even set 16'c when room temp is still hot. cleaned and played with coil sensor doesn't helps. that's when i decided to change that old aircond. this is more serious coz my aircond is not performing and causes sweating.
i don't understand why your aircond is cooling but you insisted want the compressor on-off at your set temp, while it's still able to do that at 28-29'c... confused.gif
voscar
post Mar 20 2019, 11:13 AM

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QUOTE(KKW @ Mar 20 2019, 10:49 AM)
Yup, I know about Daikin but not Panasonic. I wish to gather some opinion on Panasonic before I decide which to purchase. smile.gif
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Everyone says D is good, aircond men, every forum, everyone, uncle aunty, technician. 90% of aircond men wearing D T-shirt. It is the "national" brand in Malaysia.
So how can you gather info on D vs P performance since 90% of ppl were using D? You can only try one brand and rant if it's not meeting your expectation! Too bad Malaysia don't have refund policy for electrical appliance and no, you can't test the Aircond on most shops as they usually placed indoor unit for display only, without turn on to test cooling performance, noise etc...

This post has been edited by voscar: Mar 20 2019, 11:17 AM
voscar
post Mar 20 2019, 11:19 AM

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QUOTE(ArthurHew @ Mar 20 2019, 11:18 AM)
Daikin is really cooling, I have friend complain its too cold lol even though have 4-5 person inside. for 1hp ac.
Just I felt installer make big role to proper locate the compressor, avoid vibration.
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My 1.5hp is not cooling and got rid already. Lol
About noise, installer, their own outsource technician, in-house technician came and said it's normal. No vibration, it's compressor own operating noise, lol. But nevertheless, I will give good rating on their after sales service. Very responsive. But imagine new Aircond within 1 month visited 3 times by them due to my complaint, torturing experience while my problem not fixed, so have to get rid...

This post has been edited by voscar: Mar 20 2019, 11:23 AM
voscar
post Mar 20 2019, 03:38 PM

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QUOTE(10071985 @ Mar 20 2019, 02:22 PM)
Is R32 common in the market?
And for R32 which is a better choice? Panasonic or Daikin?

Hope to get some opinion from existing owners
Thanks a lot!
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Soon will be more common in the market. TBH I still preferred R22 type as those older compressor from 1980s - 1990s operates much quieter and more silent with low frequency humming. Nowadays R32 compressor emits mid frequency tone at 150Hz which is normal human voice and more annoying. Some brand may be noisier some brand will be quieter but 150Hz frequency note is there.
My current P brand R32 blower wind feels arctic cold, same like previous old Toshiba R22. It replaces ex-D brand R32 which only blowing cool wind not as cold.

This post has been edited by voscar: Mar 20 2019, 03:40 PM
voscar
post Mar 20 2019, 08:13 PM

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QUOTE(DuitNow @ Mar 20 2019, 06:43 PM)
You actually dump the aircon within one month of buying and installing? blink.gif

So the installation of the replacement aircon also need redo piping?
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Yes, everything redo.
voscar
post Mar 21 2019, 08:50 AM

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QUOTE(naqib0307 @ Mar 21 2019, 08:34 AM)
Previously we used Panasonic for all AC at home no problem at all. Then after renovation 3 years ago, we've decided to change some of the ac to daikin. So, we bought 4 daikin inverter ac for. Then 1 by 1 got problem. Change the board also still problem. AC auto off, cannot switch on, If on also blowing nothing. You Imagine lah, going back home after a tiring day at work and cant even switch on the ac when the room is hot. Then all changed back 1 by 1 to panasonic and we sleep happily every night. Personally, I would not recommend daikin. Even the store that I bought from now dont recommend daikin anymore.
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Overrated brand. Their marketing is very successful, already implant the brand name into most Malaysian' minds. Been tried once and I will never look back into this brand and brands from same factory, this lesson for me is very very expensive...
voscar
post Mar 22 2019, 07:33 PM

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QUOTE(55665566 @ Mar 22 2019, 06:26 PM)
Anyone have the price comparison for r32 vs r410a?
Does it worth to have r32 in the long run?

Actually I'm quite worried about the flammable thingy in r32.
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My installer smoke when doing R32 refrigerant measurement, it didn't fire up or explode...
voscar
post Mar 22 2019, 08:34 PM

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QUOTE(55665566 @ Mar 22 2019, 08:23 PM)
Is that a good thing?
I was worried like if there's gas leak and you start your cooking hood
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of coz smoking is not good, i even told the installer be careful of potential fire hazard but he ignored and enjoy smoking...
oh, our outdoor unit is far from gas stove, and i don't think the risk of fire hazard on R32 will be similar to our cooking gas, if so this wouldn't be released to the market.

QUOTE(DuitNow @ Mar 22 2019, 08:26 PM)
So which model you choose in the end?
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lol, i already changed twice you still surveying, since last month right? biggrin.gif
voscar
post Mar 25 2019, 05:23 PM

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QUOTE(naqib0307 @ Mar 25 2019, 02:30 PM)
1hp Ps 9: rm1,650
1.5hp Ps 12: rm2,030
2.5hp Ps 24  3,350

Panasonic Inverter+installation

Got the price just now. Macam good price?
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Panasonic 1.5hp standard inverter PU12VKH can get RM1.9k with installation.
voscar
post Mar 25 2019, 06:14 PM

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QUOTE(10071985 @ Mar 25 2019, 05:36 PM)
can i say that normally, we use inverter for room (due to using it every night).
while non-inverter for living room (assuming not using it that often)
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I've installed 1.5hp inverter on my living room. Supposed rated current is 4.5A, these few days I used Clamp Meter to check the current. My AC set temp is 25'c, lowest fan mode or mid-high during meal time. On startup the current can be 4.7A to boost cooling effect, after say 30 mins current dropped to 3.5A, another 1 hour it will be 3.0A. Night 11pm can be 2.7A.
Lowest achieved is 1.4A, but that is for testing purpose by setting temp 29'c and Quiet mode, which it's not cool for a living room space.

On previous non-inverter 1.5hp AC, the current is 4.3A for latest R32 model, about 4.5A below 5.0A for 20 years old 1.5hp. Same living room space. So does inverter save electricity for living room? yes I would say. The inverter power saving mode is very aggressive as it tries to reduce current draw as much as possible.
voscar
post Mar 25 2019, 07:25 PM

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QUOTE(DuitNow @ Mar 25 2019, 06:22 PM)
Your living room front doors usually close or open?
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Front is glass with metal frame sliding door, linked to kitchen without obstacle...
voscar
post Mar 26 2019, 09:51 AM

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QUOTE(ArthurHew @ Mar 26 2019, 09:09 AM)
Great info! Which clamp meter you used? Haha
Btw your wiring is exposed? Clamping on life only?
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Using old Kyoritsu clamp meter.
Yes, joint one extra live wire, drill 2 holes on the switch box to route it out and back.
voscar
post Apr 4 2019, 10:41 PM

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QUOTE(silverwave @ Apr 4 2019, 08:55 PM)
Servicing falls under the tenant but repairs under owner. Agree, that is why i think Hitachi/Mitsubishi is the best option, although it's about rm200 more compared to the others in the same range. This is for non inverter.

Also i saw Senheng has 1 year extra warranty, so i need to check this and compare with HLK, TBM and Best Denki.
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if renting out, you can source for used outdoor unit. Older R22 non-inverter outdoor unit seldom got problem, very long lasting. Replace that maybe RM200-RM400 for 1.5hp to get it up and running? Get some well known brand from year 2000 onwards like National, Toshiba, Mitsubishi Heavy Duty sort of...

This post has been edited by voscar: Apr 4 2019, 10:42 PM
voscar
post Apr 10 2019, 09:07 PM

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QUOTE(ArthurHew @ Apr 10 2019, 05:15 PM)
BTW, I realize if I using the Dry Mode, the compressor is very noisy when starup, however in cooling mode, alot time is not noticeable sound of compressor startup.
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Mr D normal characteristic, more obvious in dry mode coz your indoor unit fan speed was low during that time, so indoor silence you can hear the outdoor noise.
Last Sunday when I washing my car, I hear the trademark Mr D compressor noise. Oh, it's opposite neighbor 5 house away emitting that noise. That was E..K... model btw.

This post has been edited by voscar: Apr 10 2019, 09:09 PM

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