john_k_antony
Well-Known Member
How is the service backup from O'General and Hitachi?
AC recommendation for dedicated HT Room
- Thread starter john_k_antony
- Start date
How is the service backup from O'General and Hitachi?
just4kix
Well-Known Member
I own a Hitachi window AC, 1.5T. I have had it since 2001 and never faced any issues so far. I never had to call them. I do my own cleaning of the AC using vacuum cleaner. The AC works great and cools down to "bone chilling" effect within 30 minutes. Room size is 14' x 11'.
I have Samsung 1T Split AC in my HT room (15' x 10') and it is good too. There is a third Samsung 1T in my 2nd bedroom (14' x 10'). That one is not so good.
No idea about O General Service personally but my friend in Delhi swears by it.
I have Samsung 1T Split AC in my HT room (15' x 10') and it is good too. There is a third Samsung 1T in my 2nd bedroom (14' x 10'). That one is not so good.
No idea about O General Service personally but my friend in Delhi swears by it.
If there are 2 A/C's and if one of them requires a major repair, still one can watch movies because other unit is there.
However having 2 units will have it's drawback because of extra maintenance cost but if the room is used for several hours daily then it is worth to have 2 of them but they should be of fair capacity .
While it is needless to say that if there is no fan in the room and if only 1 A/C is used of smaller capacity then there will be stress on compressor etc so all the more a fair capacity of A/C is required even if one is putting up 2 units.
V.
However having 2 units will have it's drawback because of extra maintenance cost but if the room is used for several hours daily then it is worth to have 2 of them but they should be of fair capacity .
While it is needless to say that if there is no fan in the room and if only 1 A/C is used of smaller capacity then there will be stress on compressor etc so all the more a fair capacity of A/C is required even if one is putting up 2 units.
V.
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kishoresee
New Member
go with less noise generate AC.. one of the imp point for HT rooms.... in silent shots AC sound distrab a lot
avidyarthy
Well-Known Member
^^ excalant suggastion! :clapping:
hyeah:rbalagopalan
Well-Known Member
Hi John,
It is highly appreciated that you had mentioned about Inverter model A/c in the list in your post. Whereas to my surprise no one had strongly suggested this though you have the budget for this. As you are looking at high tonnage A/C for your application it is highly suggested to go in for Inverter type A/Cs keeping the following points in mind.
1. Inverter A/C's compressor do not cut off and cut in, once the set temperature achieved in the room, Instead the RPM of the compressor, Condenser fan (Out door unit fan) and the Evaporator fan (In door unit / Cooling coil fan) is varied / maintained according to the difference between the set temperature and room temperature. Hence the whole operation is step less and the RPM is varied accurately.
Hence the whole cycle of operation is very smooth with a temperature fluctuation of +/- 0.1 deg. C. (In case of normal A/Cs the differential temperature is around 1 to 2 deg. C) Once the room temperature is nearer to the set temperature all the above said equipments almost run at idle RPM which is almost nill noise (the most sought factor for an auditorium / home theater)
2. Any A/C compressor makes lot of noise during Cut in (starting) cycle and draws almost 6 times the running current resulting in higher power consumption.
3. In fact a 1 ton Inverter grade A/c can be plugged in to a 5 amps wall socket, as the starting current is lower than the running current in case of any Inverter grade equipments. Hence the MCB of the plug point of you A/C can be rated nearer to the running current of the A/C than a high rated one (which is normally installed to avoid tripping during initial starting of the compressor). This gives you more safety as the tipping system is very much close to your normal running conditions.
4. Yes the initial cost is higher compared to the normal A/cs but given the fact the Inverter grade motor be it any application will have a assured power saving between 30% to 40%, this is far superior than any 5 star ratted equipments. Hence depending on the hours of operation you will have your A/c considerably saving your EB bill and pay you back over a period of time.
With regard to type I would recommend a Wall unit than a cassette type given the convenience of installation, maintenance and cost. With regard to brand you can consider Daikin, Hitachi, OG and Panasonic all are fairly good. IMO Pansonic is priced less compared to other brands in Inverter grade which is value for money and they are reliable too.
Despite all the above if you are going for a normal split A/C then please ensure that your A/Cs power supply is drawn from a different phase of supply from that of your HT set up power supply phase given the fact that your A/C is going to be of higher capacity. This will ensure the drastic power fluctuation during compressor cut off and cut in is not affecting your HT set up power supply, to have quality viewing and for the safety of your HT equipment.
my one cent.
R. Balagopalan.
NB: Even Inverter grade refrigerator do have all the above said advantages. So who ever wants a higher capacity refrigerator they can consider this as it has promising pay back period keeping view that all refrigerators is ON 24X7.
It is highly appreciated that you had mentioned about Inverter model A/c in the list in your post. Whereas to my surprise no one had strongly suggested this though you have the budget for this. As you are looking at high tonnage A/C for your application it is highly suggested to go in for Inverter type A/Cs keeping the following points in mind.
1. Inverter A/C's compressor do not cut off and cut in, once the set temperature achieved in the room, Instead the RPM of the compressor, Condenser fan (Out door unit fan) and the Evaporator fan (In door unit / Cooling coil fan) is varied / maintained according to the difference between the set temperature and room temperature. Hence the whole operation is step less and the RPM is varied accurately.
Hence the whole cycle of operation is very smooth with a temperature fluctuation of +/- 0.1 deg. C. (In case of normal A/Cs the differential temperature is around 1 to 2 deg. C) Once the room temperature is nearer to the set temperature all the above said equipments almost run at idle RPM which is almost nill noise (the most sought factor for an auditorium / home theater)
2. Any A/C compressor makes lot of noise during Cut in (starting) cycle and draws almost 6 times the running current resulting in higher power consumption.
3. In fact a 1 ton Inverter grade A/c can be plugged in to a 5 amps wall socket, as the starting current is lower than the running current in case of any Inverter grade equipments. Hence the MCB of the plug point of you A/C can be rated nearer to the running current of the A/C than a high rated one (which is normally installed to avoid tripping during initial starting of the compressor). This gives you more safety as the tipping system is very much close to your normal running conditions.
4. Yes the initial cost is higher compared to the normal A/cs but given the fact the Inverter grade motor be it any application will have a assured power saving between 30% to 40%, this is far superior than any 5 star ratted equipments. Hence depending on the hours of operation you will have your A/c considerably saving your EB bill and pay you back over a period of time.
With regard to type I would recommend a Wall unit than a cassette type given the convenience of installation, maintenance and cost. With regard to brand you can consider Daikin, Hitachi, OG and Panasonic all are fairly good. IMO Pansonic is priced less compared to other brands in Inverter grade which is value for money and they are reliable too.
Despite all the above if you are going for a normal split A/C then please ensure that your A/Cs power supply is drawn from a different phase of supply from that of your HT set up power supply phase given the fact that your A/C is going to be of higher capacity. This will ensure the drastic power fluctuation during compressor cut off and cut in is not affecting your HT set up power supply, to have quality viewing and for the safety of your HT equipment.
my one cent.
R. Balagopalan.
NB: Even Inverter grade refrigerator do have all the above said advantages. So who ever wants a higher capacity refrigerator they can consider this as it has promising pay back period keeping view that all refrigerators is ON 24X7.
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jithudigitised
Active Member
^^ wow..never knew this much details about the inverter grade AC and refrigerator.:clapping::clapping:
naveenjn
Member
I think Sharp is the cheapest Inverter AC of the lot. The other day I bought a Sharp 1.5T inverter for Rs 44,000 (including installation).
And btw doesn't inverter ACs actually save power only if it is used for longer duration? For an HT room, if all he is spending is 3 hours a day, wouldn't normal 5 star ACs be more effective?
rbalagopalan
Well-Known Member
Yes in one way you are right naveen that is why I had clearly mentioned 'depending on hours of operation'
Still I would prefer an inverter Ac as long as my budget permits keeping its advantages in mind.
In fact due to Low starting current of Inverter A/Cs you can avoid the nightmare of main fuse burnout, in coming cable burnout at termination points.
R. Balagopalan.
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ravidharap
Active Member
Sir, before installation of false ceiling, kindly ensure to fix theremocole sheets of minimum 50mm thick to your roof slab from inside of your Room, by doing this we can reduce heat transfer from concrete slab, avoidance of sound reflecting from false ceiling and also Energy saving. This is a standard practice in every commercial high rise glass walled building.
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