Inverter Type AC in Pakistan (Inverter/Non Inverter Dedicated Discussion)

[mrdeejay]

Some info about T1, T2, T3 Compressors:

These are different conditions for stating performance of AC units. Unit performance changes with the atmospheric conditions of the region where it is put in operation.

So an AC give, say 2 ton, in a factory in USA ( 10 C) may give 1.4 Ton in Dubai( 45 deg C) or 1.6 Ton in Mumbai( 32deg C). In order to give a comparison on equal platform, these type of performance conditions are defined.

T1, is the standard condition for testing

Internal condition Dry bulb- 80F, Wet Bulb- 67 F
Outdoor condition Dry bulb- 95 F, wet Bulb- 75 F

While performance for maximum level is tested at:

Internal - 80/67 F
External - 115/75 F

In factory testing for standard condition internal unit will be kept in a room maintained at 80/67 F and outdoor unit in a hot room maintained at 95/75 F.

T3 is the condition for testing at maximum level, 115 F (46C) outdoor dry bulb and 75 F wet Bulb temperature. Internal unit is kept at 80/67 F.

[anc]

1838 and 1820 are same models just paint ka difference ha

[saqibhassan95]

Some info about T1, T2, T3 Compressors:

These are different conditions for stating performance of AC units. Unit performance changes with the atmospheric conditions of the region where it is put in operation.

So an AC give, say 2 ton, in a factory in USA ( 10 C) may give 1.4 Ton in Dubai( 45 deg C) or 1.6 Ton in Mumbai( 32deg C). In order to give a comparison on equal platform, these type of performance conditions are defined.

T1, is the standard condition for testing

Internal condition Dry bulb- 80F, Wet Bulb- 67 FOutdoor condition Dry bulb- 95 F, wet Bulb- 75 F

While performance for maximum level is tested at:

Internal - 80/67 FExternal - 115/75 F

In factory testing for standard condition internal unit will be kept in a room maintained at 80/67 F and outdoor unit in a hot room maintained at 95/75 F.

T3 is the condition for testing at maximum level, 115 F (46C) outdoor dry bulb and 75 F wet Bulb temperature. Internal unit is kept at 80/67 F.

I read this too earlier on quora
but what I found later on was, under t3, indoor unit temp is at 29C (dry bulb) 19C (wetbulb) and outdoor temp at is 46C (dry bulb) and 24C (wet bulb)

[estee.819]

Haier 5dc inverter i think is puri Inverter 18hj model

[ch.talal]

previously talal mentioned that his tcl miracle doesn't drop below 3 amps even after lowering room temperature and it just trips and it might be a programming issue and manufacturers should fix it
that's the exact same thing, not an issue, that's how acs work
the 1.5 amp lowest rated power and eer mentioned on sticker is according to 35C ambient temperature, not applicable for 40C+ temp, and at 40-42C these inverters simply can't run 2.5-3 amps, compressor needs more just to keep it running, incase you wanna test my claim, when temp is 43-45C outside, turn on ac with gen mode (1 ton set at 2 amp and 1.5 ton at 3 amp) it will trip with some error on display because at such low power in high ambient temp, compressor can't run it needs more than that just for running delivering lowest btus, hence compressor keeps running even if room set temp is 28 and in room it's 28, ac doesn't go below 3-3.5 amps, and keeps cooling, and when room temp<set temp i.e 27C, simply trips but at night this never happens, it actually drops to 1.5-2 amps during nighttime when ambient temp is lower than 35C

You are wrong here. Ac never trips if you lock amperes even at 2A - 3A and even temp outside is 48. It will just drop BTUs and keep running at fixed amperes. This feature is designed for running ACs on small generators.

AC should be programmed to keep dropping amperes instead of tripping irrespective of outdoor temperature. This thing could be achieved by monitoring indoor temperature and frequency of compressor.

This requires quality programming and grip on how circuitry works. Chinese copycats fail to polish the features.

When outdoor temperature is high it is obvious AC will not drop amperes too much. But fixing it for certain outdoor temperatures and tripping compressor is the worst thing to do and nullify the advantage of inverter AC.

[mgalaxy3]

your ac might not be level and water is probably not draining causing smell when compressor is trip for extended period. you can try tilting your indoor unit from opposite side of drain hole. run at lower temp or turbo mode and see if smell occurs when compressor is running. if not then water is pooling inside unit and not draining.

my TCL miracle is already tilted down a bit towards the drain pipe (from which water falls down).

Is that the correct direction? If not should it be tilted to opposite side. But then how will water drain from the pipe?

ALSO:
Washed indoor unit AND also sprayed disinfectant in it.
But, it's still giving bad smell when only fan turns on (n temperature gets maintained).

@ch.talal @roboxx are you guys still facing this issue if not how did you resolve it ... in TCL Miracle ..?

[ch.talal]

I used dettol water. Smell reduced a lot. Just pour some 8 - 10 liters below the coils and let it flow.

Smell reduced a lot or may be dettol smell took over bad smell. 🥴

I am suspecting air conditioner is smoking weed.

On a serious note the smell could be of hot PCB too. It's indoor pcb is quite exposed and one should be careful while servicing.

[mgalaxy3]

I used dettol water. Smell reduced a lot. Just pour some 8 - 10 liters below the coils and let it flow.

Smell reduced a lot or may be dettol smell took over bad smell. 🥴

Used lysol spray, n lots of washing with washing powder..

no smell for first couple of days (rather smell of disinfectant) but now it's giving it ...

I guess.. will have to dismount it and then manually take out the fan maybe?

How is your AC tilted - towards what direction? water Drain pipe?

[waqar747]

“Foul” smell is almost always due to microorganisms so cleaning and disinfecting is the way to go. The problem is, you may not be able to reach all areas and some of it is left every time you have tried.
Then with the moisture, it hardly takes them any time to multiply and start giving off smell again.
A full cleaning with some disassembly will get rid of it or you can try aerosol disinfectant while the unit is running. Don’t directly spray on it specially near circuitry.

[mgalaxy3]

you can try aerosol disinfectant while the unit is running

should it be sprayed on air vent/blower?

[waqar747]

The idea is to let the aerosol microdroplets run through the system, so it should be sprayed around the inlet when the AC is running, but not directly on it. A microdroplet fogger would have been perfect as it has lighter than air droplet weight, but an aerosol spray will also work.
Let the AC take in the aerosolized air and the disinfectant should reach the nooks and crannies within the system where the bacteria / fungus may be residing. Kind of like those deodorizing sprays we get to clear of smell in cars.

[saqibhassan95]

You are wrong here.

it's not an assumption or just my random thoughts, it's an actual problem which many users are facing, L1 simply doesn't work above 42-43C, shows 0A and compressor trips just blower keeps running
when you switch to L2 or L3, everything is fine again
I didn't even know that before until I experienced same once back in May when for 2 consecutive days it was 46-47C in Lahore,
Let me share some screenshots/clips too

From T-pro 1 ton user
https://www.youtube.com/clip/UgkxViP4f6lSBz7Ik60jBVYubb8o6JaRQK-S

Some Screenshots

there are many other users facing same, because of limited time can't attach all screenshots

When outdoor temperature is high it is obvious AC will not drop amperes too much. But fixing it for certain outdoor temperatures and tripping compressor is the worst thing to do and nullify the advantage of inverter AC.

agree with you, it would have been a lot better then, other than power consumption, when compressor turns off, even if room temperature is in less than set temperature, humidity increases, that's even more annoying

[xzap042]

Yes, the drain should be at the lowest point. Maybe your unit is also tilted towards front.
If not check if there are any foam paddings in inner coils or in drain tank. My ac was giving smell even after cleaning so I opened and removed all of paddings that were wet. Now I don't have this smell issue anymore.

[ch.talal]

Always tilt towards drain pipe by few degrees. You can achieve this with leveler.

Well these days my TCL miracle is not giving any smell. Dettol trick worked.

Also I am now using mildew function that dries the evaporator and stops microorganism growth.

Please do not use washing powder for cleaning. It causes corrosion. Use plain water.

[ch.talal]

You own TCL T3 Pro model?

Because I haven't yet seen this issue in my old TCL miracle 1.5 ton model. It would just keep running instead of giving L0 error even when outdoor temperature is 42+.

May be they reprogrammed newer models and did this ultimate "bongi"

[saqibhassan95]

You own TCL T3 Pro model?

yes

May be they reprogrammed newer models and did this ultimate "bongi"

comments are from both miracle and t3 pro users, almost 75-25 situation, majority has miracle, miracle was the hot selling model back then, unlike t3 pro
btw prices revised again

[saqibhassan95]

Also is the tcl t3 pro model 3dc inverter?

confirmed from tcl, t3 pro is 3dc and 18T5 smart is 5 dc
no ambiguity now

[mgalaxy3]

The idea is to let the aerosol microdroplets run through the system, so it should be sprayed around the inlet when the AC is running, but not directly on it

where's the inlet in split AC, can you elaborate please.

I've previously cleaned car ACs with the air inlet that's near the bonnet.. but what about split AC?

[dms664]

where's the inlet in split AC,

Coil and grill above coil is inlet. Blower vent is outlet.
Open the grill and spray on the coil directly and it will reach the blower and all passages. Wear a mask and stand tall of it or at sideso that the blower doesn't throw the disinfectant on your face.

[mgalaxy3]

Cool,
Gonna try