[Daewood]

Originally Posted by AbhiJ

I personally think the compressor is strong enough on the i20, atleast on the CRDi. Hyundai have messed up majorly on the blower/vent design and effectiveness... The temperature drop in rear seems to be sufficient, but the blowers air doesnt reach at the back at all. Hence the rear passengers feel hot..

Gurus, comment...

I guess the i20 readings aren't great.

Please see this test done many many years ago.
The cabin temperatures are much lower
It is 13.48 deg for baleno!!!
and even in Matiz it is 17.65 deg..

Air-Con Mega Test: Discover the car with best air conditioning system

[AbhiJ]

Sorry Guys... please disregard all data in my previous grille temperature tests...

I just did a retest and I realized that I did a major goofup.

The sensor is about 4-5 inches long and I had shoved the entire sensor in the grille for my previous tests. However, I realized the the sensing is actually done right at the tip, this time inserted the sensor only about an inch into the vent.



The results:

Outside Temp : 36.4 Degree C

Minimum Temp achieved in moving car: 3.8 to 3.9 degree C

Minimum Temp achieved in stationary car: 5.4 degree C



All photographs are attached...

In my opinion, the compressor is not the problem .... since according another T Bhpian, even the Punto has similar figures...

I still think it is the blower/vent design which is letting the cooling down...

[AbhiJ]

Originally Posted by Daewood

I guess the i20 readings aren't great.

Please see this test done many many years ago.
The cabin temperatures are much lower
It is 13.48 deg for baleno!!!
and even in Matiz it is 17.65 deg..

Air-Con Mega Test: Discover the car with best air conditioning system

Thats good info...

However,

1) I set the temp at 20 C, so I guess the compressor cut off after a period of time... I ll reply tomm with it set at Low.

2) The average temp will be significantly cooler than the rear seat temp, at least in the i20, since the blower design is flawed...

[wildon]

Originally Posted by agm

with that dark sunfilm ac was not working at all when the outside temp was 38*c (now 43*c) that to at the front,wonder what will happen later especially to the people sitting in the back seat?

If your A/C is not working at all, do a self diagnostic test. The details to do that is posted here

http://www.team-bhp.com/forum/test-d...ml#post1636982

Originally Posted by AbhiJ

1) I set the temp at 20 C, so I guess the compressor cut off after a period of time... I ll reply tomm with it set at Low.

But you are doing the testing in Manual mode.

Why don't test it in Auto mode. Keep the Temperature at Lo, press Auto ,select the circular mode , then do a test please.

[extreme_torque]

3.9 is very decent grille temperature. So its the vent design and circulation which is the culprit.

[wildon]

Once i opened the Vent for checking the HU and posting the picture here once again.

[agm]

@Wildon - By not at all i meant that the air coming from the grill isnt exactly hot, but then over all cooling inside the cabin isnt good at all . i was sweating like anything.
Its not only about the car i had ,as i have said this before we have 3 i20 Asta in our family and everyone has the same opinion about the ac being pathetic. its 43*c here in raipur , and i do understand their concern ,they have paid over 6L for the car so they expect decent performance from the Ac ,Atleast something which will not make them sweat !

Maybe it has got something to do with the auto . but than again when i had this car for a week i tried everything to make ac work properly bit to no avail.

[AbhiJ]

Originally Posted by wildon

But you are doing the testing in Manual mode.

Why don't test it in Auto mode. Keep the Temperature at Lo, press Auto ,select the circular mode , then do a test please.

The test is in 20 C + Auto + Re-circulation on.

I ll retry the test tommorow with Temperature at Low + Auto + Re Circulation

[wildon]

^^^ I doubt it was in Auto as from the pictures posted Auto indicator is not illuminated and display is not showing as Auto

[AbhiJ]

Originally Posted by wildon

^^^ I doubt it was in Auto as from the pictures posted Auto indicator is not illuminated and display is not showing as Auto

All pics posted are during the grill temp test... not the temp test. During the grill test the mode was not on Auto.

During the temp test I set the mode on Auto @ 20 C. This time I ll try at Auto @ Low


p.s. I am 99% sure that the problem is not the compressor, its the circulation...

Can I do something to improve it? i.e. Replace the blower motor with a higher speed unit.. is that possible??

[Daewood]

Originally Posted by AbhiJ

p.s. I am 99% sure that the problem is not the compressor, its the circulation...

Try finding out the real compressor capacity from someone in the Hyundai service centre.
If it indeed is 90cc as someone pointed out then the compressor is the culprit. Because even an Alto has a 115cc compressor and the Ford Figo has a 150cc one.

[gpa]

Originally Posted by AbhiJ

Can I do something to improve it? i.e. Replace the blower motor with a higher speed unit.. is that possible??

Theoretically, this can be done. A few pre 1995 M 800s came with a 80 watt blower and a few owners upgraded this to a 100 watt blower motor to increase cooling efficiency. However, not sure if a higher watt blower would be available in the market for the i20 since it's a relatively new car.

[wildon]

Originally Posted by Daewood

Try finding out the real compressor capacity from someone in the Hyundai service centre.
If it indeed is 90cc as someone pointed out then the compressor is the culprit. Because even an Alto has a 115cc compressor and the Ford Figo has a 150cc one.

Its is indeed 90cc.

I don't know about the wattage of the Blower Motor, but giving you the spec below.

[AbhiJ]

Originally Posted by wildon

Its is indeed 90cc.

Any idea if its same for the CRDi??

[CrAzY dRiVeR]

Dont know if this has been posted earlier-

From the Summer Special AC shoot-out conducted by CAR India (April 2010), i20 has been given 'hot' rating.

For the segment. (Lowest Cabin temp in brackets)

Grand Punto (31.4) < i20 (29.7) < Fabia (29.1)< Vista (29.0)< Getz Prime (28.8)< Polo (28.8)< Ritz (28.3) < Figo (27.1)< Jazz (27.1) < Swift (26.3) < UVA (25.5).