Question On Air Cond (A Bit Confused)

[Gymrat76 0]

Hi all

When I purchased my system 3, I was told that I could not turn on all 3 units at the same time as it would not be cold. The salesman basically used BTU's to explain: The compressor capacity is 28k BTU and I would have 3 FCU, 18, 18 and 9 (total 45k BTI). So I can turn on at most one big and the small FCU (total 27k BTU).. ok makes sense.

Then I looked at the Mitsubishi web page. It basically stated:

Cooling capacity in kW.

2 large FCU = 4.8kW each

1 small FCU = 2.5KW

Compressor = must not exceed 14.6kW

So when I total up all the FCU, its only 12.1kW, which is below 14.6kW

Does this means that I can actually turn on all 3 and expect them to cool normally, or does the kW not the same measure as BTU (but both refer to cooling capacity, right?)

Confused...

FYI the aircond I'm using:

Mitsubishi Starmex

FCU

2 units = MSY-GE18VA

1 unit = MSY-GE10VA

Compressor = MXY-3A28VA

http://www.mitsubishielectric.com.sg/products/for-home/air-conditioners/multi-split-inverter-r410a/starmex-msxy-series-wall-mounted-type.html#feature