To Ark Law,
When room temp is quite far from your remote set temp, fan speed will be high.
When room temp is achieved or close to, fan speed will be lowered.
This is how the Auto Fan Speed works.
i going for MHI.
tested and proven. still going strong for 4 years in my family house
The operating power will of course be higher for 12k btu fcus.
But you need to consider that a 12k fcu will cool the room faster than a 9k (assuming the compressor is sufficient). That also means the 12k will work at the rated power, for a shorter duration than a 9k will. The 12k will go into idle earlier than the 9k.
So overall how does the average electricity consumption plays out? I have no concrete answer. My personal gut feeling is the 12k will consume more electricity, but no more than 10% over its 9k counterpart.
25% is too much. Considering the bulk of the energy consumption comes from heat rejection, whose rate becomes (close to) 0 once the room has reached set temperature.
10% is a generous buffer I believe. I attribute it to the extra energy consumed by the slightly larger blower motor in the larger fancoil. That's about the only difference.
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Is a system 4 enough for a living room or need system 5?
ID recommend system 3+2 for both living and bed room, is that a better idea?
Normal 5 rm flat.
How about spare parts replacement? Heard that MHI parts replacement is more costly.
Does hdb allow installation of 2 compressor?Electronics expo 2016 22-24 Jul, got quite a few good deals (including aircon, tV) from their brochures.
esp their panasonic sy-stem 2 (4 ticks i believe) $1980 with free panasonic microwave oven
good for those who wants to have 2 x system 2 for their four rooms and 5 rooms
another one is MHI system 3 (4 ticks i believe) $2690 cashback $100
I thinking of installing a system 2 cos the 3rd room doesn't need a aircon cos my mum don't use it and install a system 1 should the need arise years later. Some say better to install system 3 and on it once a while to keep the parts moving.