Solar Hot Water Draw Units in Help

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Paul Gilman
Solar Hot Water Draw Units in Help

For the Solar Water Heating model in SAM 2011.12.2, the description in the SWH System help topic under "Specifying the Hot Water Draw" uses incorrect units. The units for solar hot water draw are correctly described in Help under "Hourly Hot Water Draw," and are correct in the user interface:

Hourly hot water draw: kg/hour
Average daily hot water usage: kg/day
Total annual hot water draw: kg/year

The second paragraph under "Specifying the Hot Water Draw" is incorrect:

A load data file is a text file with 8,761 rows: The first row is a text header that SAM ignores, and the remaining 8,760 rows must contain average hourly electric demand data in kilowatts. The first data element represents the hour beginning at midnight and ending at 1 a.m. on January 1.

It should say:

An hourly hot water draw data file is a text file with 8,761 rows: The first row is a text header that SAM ignores, and the remaining 8,760 rows must contain average hot water draw data in kg/hour. The first data element represents the hour beginning at midnight and ending at 1 a.m. on January 1.

Best regards,
Paul.

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