Gree A Series Service Manual page 17

A Series Modular-type Air-cooled (Heat Pump) Chiller
3.6.1.6 A case for Selection
Background: there is an office building covering 12,000㎡ totally with 10,500㎡ to be air
conditioned, among which the big meeting rooms take up 500㎡, the small meeting rooms take
up 1,500㎡ and office rooms take up 8,500㎡, and fresh air is required.
(1)Calculate the cooling load
1) By the estimated cooling load:
Big meeting rooms: 500×180（W/㎡）=90000W=90kW
Small meeting rooms: 150×240（W/㎡）=360000W=360kW
Offices: 8600×150（W/㎡）＝1290000W＝1290kW
Total: 90kW十360kW＋1290kW=1740kW
2) By the building area:
12000×98W＝1176kW
3) According to the calculation results of 1) and 2), cooling load 1740kW is selected.
(2)Calculate the heating load
By the estimated heating load:
12000×70=840000W=840kW
(3)Select the desired model and quantity
Look up the GREE Technical Guide Manual and it is concluded that 29 SQWRF60VM/
NaA-M meet the design requirement (cooling load: 1740kW,, heating load: 1885kW).
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