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

[imrananr]

He is playing with you if it was condensate pouring from the indoor unit due to blockade drain, provided A/C cooling was fine.

[s15]

There are no specific brands, most brands have a few models with powerful compressors. Basic check is to check specs within their catalogue or website.

They are advertised as T3, rated upto 52-55C etc etc, with bigger outdoor unit. No specific term.

[s15]

How is cooling? Does frost forms in outer pipes near outdoor unit and pipes are very very cold to touch or just pipes are super cold and wet?

If very good cooling with wet pipes (no ice) and very very cold pipes, it's just minor drain pipe clogging related issue.

Gas leakage will make AC not cool at all or very less cooling.

[zeus65]

how to proceed then? i am going to another mechanic also, to see what he suggests.
they have a pressure guage like the tyre pressure guage. what are the signs of gas leak btw??
a.c is though cooling, lets say like u are in the room for 20 min with fan on, u will feel like its cooling. but its not enough. i reckon that this is due to wapda ppl as they are manipulating the supply so that a.c trips when compressor tries to start. have a external thermometer which shows a.c is not cooling enuf.

[zeus65]

i will check tonight, if outdoor connected pipes catch frost.
cooling is not great though, i will try to confirm it again in the morning as voltage is stable at that time.

[imrananr]

These are manifold gauges to measure HP and LP side refirigerant pressure.

It’s different for every refrigerant like R-22 may have different than 134a. It is to be noted here that R22 refrigerant compressor is manufactured only for R22 gas and not any other.

A chart can be used to check HP and LP pressure in relation to ambient temperature on the chart or index.

With low gas pressure refrigerant should be added after a leak has been confirmed and fixed/arrested. Low refrigerant in system can affect the cooling capacity of an AC.

[s15]

Gas charge is best checked on full ac load at peak temperatures.

Highest fan, lowest thermostat, doors and windows open and peak outside temperature.

Night results are not so accurate since AC load is far less, so it will maintain reasonable cooling even with slight under charge.

[dwb1986]

My 1 ton inverter ac is consuming 3.5 Amperes. Is this good consumption for a 1 ton?

[matifkhan]

This depends upon the difference between ambient temperature and desired temperature. Higher the difference, higher will be power consumption. It can't be some fixed value.

[dwb1986]

Well it was fluctuating between 3.4 and 3.5 when i had set the temperature to 29 on the AC. What do you think 3.5 is good enough for a 1 ton AC or it is consuming high electricity?

[s15]

Always mention room size, outside temperature, floor, T1 or T3 (lol) etc.

[s15]

This is where T3 inverter brings an edge, in my experience (practical, not tech specs/EER gimmicky experiences).

It lowers the amps consumption very quickly due to way faster cooling in peak summers.

Plus keeping in mind Pakistan summer climate (upto 52C), global warming and loadshedding etc. It's wise and future proof to go for T3 inverter, as T1 is under powered (upto 43C) to begin with.

In Pakistan, there is loadshedding every 2-3 hours, so one needs a very powerful AC (rated at 52-55C) that cools super fast, reaching desired set point within an hour, to quickly lower the amps, for the next two hours.

T1 inverter takes 1-3 hours at 4-6-8A to reach desired set point at peak summers (40C+), and by the time it stabilises to low amps (2-4A), it's loadshedding time and then it has to start over again at 6-8A for next 1-2 hours. What is the savings in that?

T3 inverter reaches desired set point within an hour (be it 22-24C on 45C day) and then lowers the amps (2-4A) just after an hour of use and for the next two hours, it runs at 2-4A. More savings or less savings?

Personal experience with GREE Voila (currently overpriced junk), and Panasonic T3 inverter (18PKF, twice old than GREE Voila and with outdated R22). Both on upper floor.

[matifkhan]

There are so many variables involved in it. There can't be a definitive answer to this. I have seen 1.5 T inverters go down all the way to 0.8 Amp. Some stay at around 1.5 - 2 Amps and so on. Anything between 1.5 - 2.5 Amps should be good to go. If your inverter constantly remains above 3.5, then there is probably something wrong. Either you have bought an under capacity unit not suitable for the volume you have in your room or your room is exposed to more sunlight.

[ali15144]

One more problem could be voltage,if the voltage is low it will take more ampere. As power =amp*volt*0.8

[dwb1986]

Yeah i think so. It is a T1 one ton inverter. On start it goes till 5.5 Amperes and comes down to 3.5.

[dwb1986]

It's T1 inverter and room is small.

[krafiq]

Which company inverter are you using?

[dwb1986]

It's kenwood.

[imrananr]

When you use the word Kenwood, instantly the sound system company comes into mind. Ha hahaaaaa.

We are already idiots and these Chinese are further making us look more as idiots. Specially the C-pak stuff. We cannot not even clean our own shit and have to hire Chinese or Turkish companies to do this for us.

[mrdeejay]

Had my unit installed today, however, I feel the air coming out isn't as cool as it should be. Whats the temp of the coolest air that your LG blows out? Few things I've noticed, LG website had pics of Energy consumption being displayed on the AC, when I press the button for 3 secs on the remote, my AC does Not display energy consumption? On the outdoor unit there is a slight odd noise, is your unit the same? Have you figured out how to get inner-horizontal vanes to work?