Can some kind soul help me with determining the correct compressor sizing with these data I have gathered? Contractors I have approached gave me 2 formula to workout the BTU requirement:
a) Room area x 700
b) Room area x 10.764 x 60
Bedroom 1 = 12.04m2 (Calculated BTU => a@8,428 b@7,776)
Bedroom 2 = 15.39m2 (Calculated BTU => a@12,600 b@11,625)
Bedroom 3 = 12.72m2 (Calculated BTU => a@8,904 b@8,215)
Living Room = 31.2m2 (Calculated BTU => a@21,840 b@20,150)
Other considerations:
- 2 out of 3 bedroom is facing the afternoon sun and can get very warm even at 10pm
- Aircon needed at all 3 bedroom everynight, operating from ~9:00pm to 6:00am
- Living room only turn on during weekend and sometime along with 1 bedroom
Questions:
1) If using Daikin MA56 compressor (~20K BTU) + 3 x 9K BTU (bedroom) + 1 x 12K BTU (living room) fancoils, good enough?
2) Beside Mitsubishi invertor system, what are the other brands recommended?
Thanks in advance for your kind assistance.