Split AC with Alexa Support

[Sushubh]

Have to buy a split ac for lobby. Would like to have Alexa support this time around. Was wondering if anyone here has purchased a wifi enabled model in recent times and how was the experience.

 

[Rickysin]

@Tejas01 excellent post.

no vacuuming was done. When i asked the installation guy he said there is no need. He has done leak check. I was noob in that case. When I checked YouTube videos i got to know that there is a separate leak detector machine which installation guys were not carrying.

ac is fairly new like 3 months old. 1.5 ton samsung inverter ac. Room size is 14x15 with just top facing sun.

had complained samsung care but they did not even bother to send an engineer and closed the complaint without any action. Engineer did called me but said that inverter ac makes noise and which is normal. We cannot do anything about it

 

[Tejas01]

Sad to hear Samsung has fallen to such pathetic levels of service. Did you mention this issue to your dealer? If you have a good rapport with him, he will take interest in trying to get a resolution to your issue.

Lol, giving a judgement without even visiting the site. Seems like ego is getting the worse of Samsung.
I believe you have 2 yrs warranty. Don't let them go scot free. Ask your dealer to intervene and let the engineer have a look at it. Try to raise issue on FB, twitter about how Samsung is selling compromised products. Can't comment much on Samsung ac since I never used them.
With LG you can raise this issue at highest level if you are not getting a desired result from the ac.

ac is fairly new like 3 months old. 1.5 ton samsung inverter ac. Room size is 14x15 with just top facing sun.
If I am not mistaken, anything in excess of 180 sq. feet warrants a 2 ton. Plus you have a major heat source i.e. the roof, so it more than warrants to get a 2ton ac. Plus, all manufacturers, barring the expensive and well reputed ones like Mitsubishi, Hitachi, Fujitsu etc. are never true to their tonnage mentioned.
Like I know my LG is 1.5 ton on paper. But But in reality based on it's heat removal capacity and other parameters ( there's a vid on YT explaining how to calculate tonnage) it's only 1.44 ton. For a 2 ton on paper, it would be around 1.75-1.8 ton. So it does make a difference.


Are you having similar issue with LG AC?

 

[Tejas01]

but dad says it only went bad after shifting from panchkula to gurgaon.

This got me thinking. There is also a good possibility that the copper pipe might have been pinched either during installation or during dismantling while moving from panchkula to Gurgaon. Copper pipes are, at max, capable to withstand one bend or even two if the technician is careful with the first. When you bend more than once or if the technician is very rough in bending the pipe, it pinches. As a result, the flow of refrigerant is obstructed and hence less cooling. And because copper is inelastic, you cannot unpinch it. So there is a good possibility that the pipe might have pinched and hence your Dad observed a change in cooling efficiency at new location. This was also told to me by the technician who bended the pipe as the outlet was on the other side.
While this won't matter for a new AC, if you plan to move to some other location, or you want to give it to someone, then handling the pipe delicately would help you and others.

 

[Rickysin]

I have both inverter and non inverter LG ac’s @Tejas01 . Inverter one is having less cooling than non inverter. Though if we compare inverter models of lg and Samsung, lg is better.

but again i have seen Voltas and Daikin inverter acs chilling the room even on top floor room as compared to lgs and samsungs

 

[Jonas]

Panasonic smart ACs look quite interesting!

 

[Tejas01]

@Rickysin although not extensively researched, but it would vary from company to company how they tweak their inv ac performance. For instance, you and another Yt'ber have mentioned lower inv performance. He mentioned LG(2020 models) has gone very aggressive with power saving and hence it would decrease power 2-3 degree before reaching the set temperature.
Another member elsewhere mentioned the same. He runs ac 24x7 and he has similar views as yours.
That could explain why for a same tonnage LG has higher ISEER(power saving) than Voltas(more cooling).
Non-inv models are geared towards cooling, so difference could be visible when temps are set low.

 

[Rickysin]

@Tejas01 thanks for the reply. As per my experience with inverter acs, i would not buy another same technology ac ever again. Will prefer window ac over split one.

another issue: yes both samsung acs 1.5 and 1 ton:

though i have one more concern regarding 1 ton inverter ac. At start it consumes 2000w and nearly 10 amperes current till it reaches set temperature of 29 degree. And then to maintain that temp it runs at 900 w .
Shouldn’t 1 ton inverter 5 star ac run at like 400-500w to maintain that temp ?
And why it runs at 2 ton when company mentioned that it can max consume 1.2 ton ?

i had seen youtuber videos of same 1 ton ac running at 400w once it maintained that temperature.
What could be the reason ? High gas ? Low gas ? Wiring ?

 

[igloo]

I have a Marq(flipkart brand) 1 ton inverter AC.
On full power uses 1100 watt as rated while on achieving desired temp consumes 400w(tested with smart plug) only.
For 29c it even switches off the compressor maybe cos no level below 400w as room is small, gf, no direct sunlight.
Also when switched on it gradually goes to 1100w from 400w.
So may be your ac is faulty.

 

[AAK]

@igloo how is your experience with Marq brand in terms of performance and service ?

 

[Tejas01]

At start it consumes 2000w and nearly 10 amperes current till it reaches set temperature of 29 degree

How much is the max consumption mentioned on the label? I am assuming the ac would be coming from a very high temperature range 40C+ to 29C which means it has lots of work to do. Besides, is your ODU sitting under direct sunlight? If yes, you could be over-working your compressor since it would not be able to release all the heat from the air coming from IDU and hence it works more to cool that warm air causing increase in consumption.
TLDR; if your readings are way more than the stated readings, then something is definitely wrong.

And then to maintain that temp it runs at 900 w .

There would be lot of variables involved here. Daytime readings with high temps outside will always lead to higher consumption. Also, there could be passive heat from surroundings, roof which could negate the work of ac and hence it would consume more power to maintain the set temp. Try in when it is less sunny and when the difference between the ambient and set temps is less like during monsoon.
No company would allow to run their ac's at a much higher values than the rated ones as it destroys the compressor's life. If that is indeed the case, then you would be better off showing to their technician.

Shouldn’t 1 ton inverter 5 star ac run at like 400-500w to maintain that temp ?

Ideally, yes. If there are trigger elements like passive heat, under-sized ac, dirty ODU, ODU under direct sunlight, damaged fins(hence restricted air flow) then the consumption would vary to meet the set temps. Regularly cleaning your ODU with garden hose will allow for effective heat exchange and lower consumption.
I hope that YT video perhaps had mentioned that results found in the video may not be possible everywhere. There are too many variables involved.

There are only two states possible with the gas, either completely filled or less than that. All the values and parameters mentioned are based on full gas. If there is low gas, there will be less ampere current drawn at full power, more power consumption(since less gas so more work to cool the room).
I don't think wiring would be an issue. If you are talking about piping as in used to extend the given set, then it depends if there is a pinch in pipe while bending. If there is a pinch then there is an obstacle for the refrigerant to flow which reduces cooling, higher power consumption. If during installation the team was careless, then pinches will be present where there is a bend in pipe.