Need 4 Inverter ACs

[Shuaib]

Hi Rishi,

I have read your reviews regarding the Sharp Inverter AC's that you are using. Great piece of information. Thank you.

I am located in Moradabad and we do not have any Sharp dealer or service center. So for me Sharp is out of question.

We will soon be moving to a new house which has only ground floor and nothing on top of it. We will be using a minimum of 4 AC's and I want a power efficient machine which does not make a hole in my pocket with every month of electricity bill. I have been thinking hard about the Inverter AC.

There are 3 rooms and 1 hall of the below dimensions :
Room 1 : 15' x 12'. This room gets direct sunlight from one side and top.
Room 2 : 16' x 10'. This room gets heated from the top only as it is in the back. There are two big windows which open up to a covered gallery which has a 4' x 4' opening on top
Room 3 : 18' x 10.5' : This room also gets heated from the top and has windows opening to the same gallery as above room.
Hall : 26' x 12'. This hall gets direct sunlight from two sides and top.

We have Daikin, Hitachi, Carrier, Panasonic, LG, Samsung, Voltas, Onida AC dealers in my city and I checked the service is also available. Quite surprising everybody here is pushing for Panasonic AC's reasoning that they have fully imported units.

First thing I want to know what is the right tonnage that I should go for each room.

Secondly I have been quoted the following prices for few models I shortlisted on various brands:

Daikin Inverter AC : FTKD50 : Rs. 42,250/- They say this one uses R22 Gas and Daikin also does not provide the installation kit.
Daikin Inverter AC : FTKS50: Rs. 49,500/- This one uses R410A and again does not come with installation kit.
Panasonic Inverter Ac : YS18PKY: Rs. 42,000/- . This one uses R410A Gas and comes with a certain length of copper pipes.

The ASS of Daikin, Panasonic, LG, Samsung are satisfactory here.

It has been several days since I have been struggling as to which brand and model I should go for in Inverter technology.

Please help.

Shuaib

 

[RishiGuru]

Hi Rishi, I have read your reviews regarding the Sharp Inverter AC's that you are using. Great piece of information. Thank you.

Good to know my review and insight are in help to others. Thanks for the appreciation.

I am located in Moradabad and we do not have any Sharp dealer or service center. So for me Sharp is out of question.

I don’t think they are completely out of question. Going the dealers link in Sharp Products website I find they have a dealer in Moradabad:

TOTAL INFO SOLUTIONS
B-56, BEHIND GANDHI NAGARPUBLIC SCHOOL, Moradabad
Phone: 9927007723, 9927007723

Kindly have a go through this link: http://sharpproducts.in/dealer.aspx

We will be using a minimum of 4 AC's and I want a power efficient machine which does not make a hole in my pocket with every month of electricity bill. I have been thinking hard about the Inverter AC.

Inverter air conditioners are definitely the way to go.

There are 3 rooms and 1 hall of the below dimensions :

Room 1 : 15' x 12'. This room gets direct sunlight from one side and top.
Room 2 : 16' x 10'. This room gets heated from the top only as it is in the back. There are two big windows which open up to a covered gallery which has a 4' x 4' opening on top
Room 3 : 18' x 10.5' : This room also gets heated from the top and has windows opening to the same gallery as above room.
Hall : 26' x 12'. This hall gets direct sunlight from two sides and top
…
First thing I want to know what is the right tonnage that I should go for each room.

Room 1 : 180 sqft --> 1.5 Ton Inverter (2 Ton will be better, budget permitting)
Room 2 : 160 sqft --> 1.5 Ton Inverter
Room 13: 189 sqft --> 2 Ton Inverter
Hall: 312 sqft --> 2.5 Ton Inverter (Preferably multi-splits)

We have Daikin, Hitachi, Carrier, Panasonic, LG, Samsung, Voltas, Onida AC dealers in my city and I checked the service is also available. Quite surprising everybody here is pushing for Panasonic AC's reasoning that they have fully imported units. It has been several days since I have been struggling as to which brand and model I should go for in Inverter technology.

Please help. Shuaib

If you want to stick to Inverters then LG, Panasonic and Daikin will be the ones you should go for. None of them can beat the VFM of Sharp though.

With the prices quoted I believe Panasonic will be the best bet if Sharp are not available.

Best of luck.

 

[TheIndian]

A lot depends on the usage, you have said nothing about the usage of the rooms and the ACs running hours.

 

[Shuaib]

I called up the Sharp dealer in my city and he said they deal only in office solutions and there is no dealer for home appliances. No service center either for home appliances. They say there is a dealer in bareilly that is some 90 km distance from here. Would it be wise to buy an appliance which does not have a local dealer and service center ?

Please help me decide the next better option.

Are Panasonic inverter ac good ? How relevent are the other features of ac other than the cooling capacity part ? The panasonic model YS18PKY has inverter technology but there are several features that are missing if compared to their otherhigher range inverter models.

 

[rdst_1]

Excuse me if I am wrong, but during my research for AC units a couple of years back, I had found the usage scenario for an Inverter unit quite different from what is being suggested over here.

Correct me if I am wrong but the perfect scenario for an inverter AC is that you buy a single large capacity compressor unit and multiple split components for inside the house.
An inverter AC is capable of running between 25-100% of its stated capacity. Hence if you need 4 2T ACs you just buy a 8T inverter AC and install the fan units in each room. The compressor unit will run according to how many fan units are running at the given moment.
1 fan unit - 2T
2 fan units - 4T
3 fan units - 6T
4 fan units - 8T.

The only benefit of paying higher cost for an inverter AC is that you only have to buy a single compressor unit. You negate this advantage by buying 4 inverter ACs.

One of my friends has a 10 or 12 T inverter installation of this sort at his house and they have just installed fan units in every room, even the lobby. Since not all units work at the same time, they still get a centrally air conditioned feel despite having conventional inverter ACs.

 

[TheIndian]

I called up the Sharp dealer in my city and he said they deal only in office solutions and there is no dealer for home appliances. No service center either for home appliances. They say there is a dealer in bareilly that is some 90 km distance from here. Would it be wise to buy an appliance which does not have a local dealer and service center ?

Please help me decide the next better option.

Are Panasonic inverter ac good ? How relevent are the other features of ac other than the cooling capacity part ? The panasonic model YS18PKY has inverter technology but there are several features that are missing if compared to their otherhigher range inverter models.

AC is a product that requires onsite service, DEFINITELY BAD IDEA to buy a brand which has no or poor local service. You could call the dealer in Bareilly and ask him and also ask if he has supplied to anyone in your city/town, and get references.

Panasonic is always a good choice. ( I would prefer it over Sharp any day).

 

[TheIndian]

Excuse me if I am wrong, but during my research for AC units a couple of years back, I had found the usage scenario for an Inverter unit quite different from what is being suggested over here.

Correct me if I am wrong but the perfect scenario for an inverter AC is that you buy a single large capacity compressor unit and multiple split components for inside the house.
An inverter AC is capable of running between 25-100% of its stated capacity. Hence if you need 4 2T ACs you just buy a 8T inverter AC and install the fan units in each room. The compressor unit will run according to how many fan units are running at the given moment.
1 fan unit - 2T
2 fan units - 4T
3 fan units - 6T
4 fan units - 8T.

The only benefit of paying higher cost for an inverter AC is that you only have to buy a single compressor unit. You negate this advantage by buying 4 inverter ACs.

One of my friends has a 10 or 12 T inverter installation of this sort at his house and they have just installed fan units in every room, even the lobby. Since not all units work at the same time, they still get a centrally air conditioned feel despite having conventional inverter ACs.

While the theory is right, the rest of the information is wrong. Its never 1:1 ratio. Also Inverters top out at 3-4 tons, above that the technology changes.
A 3T compressor unit will support about 4 Inners totaling upto a max of 5 tons. Also usage, location etc plays an important part. No mention of Usage is made, IMHO anything less than 1000 hrs a year, don't even bother with Inverters. Its like paying a lac extra and buying a diesel car and than driving 300 kms a month, just not worth it.

 

[RishiGuru]

I called up the Sharp dealer in my city and he said they deal only in office solutions and there is no dealer for home appliances. No service center either for home appliances. They say there is a dealer in bareilly that is some 90 km distance from here. Would it be wise to buy an appliance which does not have a local dealer and service center ?

In your case swaying away from Sharp will be the best decision. AC maintenance calls for onsite visits to your home and as you say they have no ASS infrastructure there.

Please help me decide the next better option. Are Panasonic inverter ac good ?

Panasonic makes excellent Inverter air conditioners. You may vouch for them.

The panasonic model YS18PKY has inverter technology but there are several features that are missing if compared to their otherhigher range inverter models.

The particular model you are talking about have very good performance at a reasonable price. Saying that the Sharp AH-XP18MV is superior to this model in both cooling capacity as well as cooling performance.

 

[rdst_1]

While the theory is right, the rest of the information is wrong. Its never 1:1 ratio. Also Inverters top out at 3-4 tons, above that the technology changes.
A 3T compressor unit will support about 4 Inners totaling upto a max of 5 tons. Also usage, location etc plays an important part. No mention of Usage is made, IMHO anything less than 1000 hrs a year, don't even bother with Inverters. Its like paying a lac extra and buying a diesel car and than driving 300 kms a month, just not worth it.

Yeah, I know the ratios arent 1:1. I was trying to say the same thing as you just did that it doesn't make sense to buy inverter ACs if your usage is over a certain no of hours and even then one shouldn't buy 4 externals for 4 internal units.

 

[Shuaib]

Yeah, I know the ratios arent 1:1. I was trying to say the same thing as you just did that it doesn't make sense to buy inverter ACs if your usage is over a certain no of hours and even then one shouldn't buy 4 externals for 4 internal units.

I have no idea about these kind of AC's . Will it be better to go for a single large capacity compressor unit attached to multiple internal units as I need 4 AC's ?

 

[Shuaib]

The particular model you are talking about have very good performance at a reasonable price. Saying that the Sharp AH-XP18MV is superior to this model in both cooling capacity as well as cooling performance.

These are specifications for Panasonic Model # CS-YS18PKY -
Cooling Capacity Btu/hr : 17,100 ( 3,750 - 18,500 )
EER (Btu/hW) : 10.82
COP (W/W): 3.16
Power Input (W): 1,580 ( 300 - 1,720)
Gas used : R410A

Specifications of Daikin Model No. FTKD50FVM -
Cooling Capacity Btu/hr : 17,700 ( 5,100 - 20,100 )
Power Consumption (W) : 1,600 ( 450-2,300 )
COP (W/W): 3.25
Gas: R22

Will it be worth if I go for Daikin Model No. FTKD50FVM or is there any other model/brand suggested ?

Thanks

 

[Shuaib]

In your case swaying away from Sharp will be the best decision. AC maintenance calls for onsite visits to your home and as you say they have no ASS infrastructure there.
Panasonic makes excellent Inverter air conditioners. You may vouch for them.
The particular model you are talking about have very good performance at a reasonable price. Saying that the Sharp AH-XP18MV is superior to this model in both cooling capacity as well as cooling performance.

Will the multi split ac be good for my requirement ?

 

[RishiGuru]

These are specifications for Panasonic Model # CS-YS18PKY -
Cooling Capacity Btu/hr : 17,100 ( 3,750 - 18,500 )
EER (Btu/hW) : 10.82
COP (W/W): 3.16
Power Input (W): 1,580 ( 300 - 1,720)
Gas used : R410A

Specifications of Daikin Model No. FTKD50FVM -
Cooling Capacity Btu/hr : 17,700 ( 5,100 - 20,100 )
Power Consumption (W) : 1,600 ( 450-2,300 )
COP (W/W): 3.25
Gas: R22

Will it be worth if I go for Daikin Model No. FTKD50FVM or is there any other model/brand suggested ?

Thanks

If I were you, then Panasonic would have been my preferred choice. Uses R410A gas, free installation kit, have much lower cooling capacity ceiling under part load over Daikin (no installation kit) and still costs 200 bucks less!!!

Get it boy and don't forget to post some shots of the same.

 

[rdst_1]

I have no idea about these kind of AC's . Will it be better to go for a single large capacity compressor unit attached to multiple internal units as I need 4 AC's ?

That would depend on your usage.

All 4 running simultaneously for around 16hrs for around 8 months a year - 2 inverter ACs of 3-4T depending on your total capacity requirement with multiple inner units.

2 ACs running simultaneously - 1 inverter AC of say 4T and multiple inner units. In this scenario if you only use 2 ACs then each will still be able to pull 2T each.

 

[Crazy_Eddy]

An inverter AC is capable of running between 25-100% of its stated capacity. Hence if you need 4 2T ACs you just buy a 8T inverter AC and install the fan units in each room. The compressor unit will run according to how many fan units are running at the given moment.
1 fan unit - 2T
2 fan units - 4T
3 fan units - 6T
4 fan units - 8T.

If you're running just that 1 unit, the compressor will be throwing out 2T all the time and cannot go lower. So where is the power saving?

 

[rdst_1]

If you're running just that 1 unit, the compressor will be throwing out 2T all the time and cannot go lower. So where is the power saving?

Look at his needs. In the second or third post his minimum usage is 1.5-2T.

In the selection I had described (1 external 8T unit), his savings are not in electricity bills but in initial cost.

As @TheIndian has aptly compared an Inverter AC to a Diesel car, it will only save money in electricity bills if one has high usage. The other way to save money is the way I have described - 1 high capacity external unit and multiple inner units thus saving money by not having to buy as many external units as the no of rooms.

 

[Crazy_Eddy]

Look at his needs. In the second or third post his minimum usage is 1.5-2T.

In the selection I had described (1 external 8T unit), his savings are not in electricity bills but in initial cost.

You're misunderstanding the way an inverter works. If he's using a continuous 1.5-2T he will save even more just getting a non inverter AC.

Do you have any price quotes on the 8T external model? From what I've seen they're more expensive even with initial costs. Nobody uses a multi-split to save costs but to save space.

 

[rdst_1]

You're misunderstanding the way an inverter works. If he's using a continuous 1.5-2T he will save even more just getting a non inverter AC.

Do you have any price quotes on the 8T external model? From what I've seen they're more expensive even with initial costs. Nobody uses a multi-split to save costs but to save space.

I still don't know his usage stats as he is yet to reply. Let me make a hypothesis -

1) He uses all ACs 80% of the day 80% of the year - Buying 4 inverter ACs (his original plan) will save him money in electricity bills. Instead of this I advised him 2 inverter ACs with multiple inner fan units for each of them. Saves money while buying and saves money in electricity bills as well.

2) At max he uses 2 ACs simultaneously. In that case I have advised him to go for just 1 inverter AC with all inner fan units attached to it.

Your option of buying 4 non inverter ACs is also perfect for him but he is kinda bent towards buying inverter ACs so I thought to tell him that he doesn't need to buy 4 of them.

 

[Crazy_Eddy]

Instead of this I advised him 2 inverter ACs with multiple inner fan units for each of them. Saves money while buying

How much are the savings while buying is what I'm asking? Some prices/models will help.

Your option of buying 4 non inverter ACs is also perfect for him but he is kinda bent towards buying inverter ACs so I thought to tell him that he doesn't need to buy 4 of them.

I was not suggesting he buy 4 non inverter ACs, I was saying inverter ACs are used because once the room is cool, your cooling capacity no longer remains at 1.5 or 2T and the compressor can slow down and save electricity. If the multi-split compressor cannot go lower than 2T, and you happen to be using only one AC at that time, you are losing out on potential energy savings which makes it equivalent to a non inverter AC.
IMHO the only saving with multi-splits is space, nothing else.

 

[Shuaib]

I still don't know his usage stats as he is yet to reply. Let me make a hypothesis -

1) He uses all ACs 80% of the day 80% of the year - Buying 4 inverter ACs (his original plan) will save him money in electricity bills. Instead of this I advised him 2 inverter ACs with multiple inner fan units for each of them. Saves money while buying and saves money in electricity bills as well.

2) At max he uses 2 ACs simultaneously. In that case I have advised him to go for just 1 inverter AC with all inner fan units attached to it.

Your option of buying 4 non inverter ACs is also perfect for him but he is kinda bent towards buying inverter ACs so I thought to tell him that he doesn't need to buy 4 of them.

My usage pattern for summer season will be as below:
1. 2 AC will be used daily from 8 pm to 9 am.
2. 1 AC will be approximately used the whole day and night- 24 hours.
3. The hall AC will be used as per the need, if everybody is sitting in the hall like during the lunch and dinner time.