Daikin WMC Specifications download pdf (Page 15)

Catalog 602-2 15

Weighting

The percent of annual hours of operation at the

four load points are as follows:

100% Load at 1%

75% Load at 42%

50% Load at 45%

25% Load at 12%

Note that the vast majority of hours are at the operating

range where dual compressor chillers excel.

Tolerances

The AHRI test tolerance, per AHRI Standard

550/590-98, for capacity (tons), power input per

ton (kW/ton), and heat balance is:

%.(.%)

%

Tolerance x FL

DTFLx FL

 













10 5 0 07

1500

Where:

FL = Full Load

DTFL = Chilled Water Delta-T at Full Load

This formula results in a 5% tolerance on tons

and kW/ton at the 100% load point and AHRI

conditions.

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