Project Name
Project Number
UEPH Complex
Statement of Work
26 November 2001
CHAPTER 10
UNIT DESIGN - HEATING, VENTILATING, AND AIR CONDITIONING
[Delete all references to comfort cooling where air conditioning is not authorized. Delete
references to inapplicable systems throughout the following paragraphs.]
10-1
DESIGN STANDARDS AND CODES. The HVAC design shall be in accordance with
10 CFR Part 434 and the current version of the International Mechanical Code.
10-1.1
Facility Energy Conservation Requirements. The entire facility design, including
siting, building envelope, plumbing systems, lighting, electrical systems, and HVAC systems
form a complete assembly/structure which is in compliance with ASHRAE 90.1-2001.
10-2
DESIGN CALCULATIONS.
10-2.1
Heat loss[ and heat gain] calculations. Heating[ and cooling] loads shall be in
accordance with the current edition of the ASHRAE Handbook of Fundamentals. Computer-
generated load calculations shall be provided, and shall include complete input and output
summaries. Equipment shall be sized to meet the total load determined by computer calculation.
Equipment may be oversized to no more than 115 percent of the computer generated load.
Design shall be based on weather data from UFC 3-400-02, Engineering Weather Data; from
ASHRAE Handbook of Fundamentals; or from other recognized and authoritative sources of
weather data. Room air flow requirements shall be computed based on the individual room load.
Values for internal cooling loads shall be included in the computerized load calculations in
accordance with ASHRAE recommendations. Minimum space heating and ventilation shall be
provided in spaces normally unoccupied, such as bulk storage and equipment rooms.
TABLE 10-1 WEATHER DATA
Type of Design /Design Information
Metric
Inch/pound
Heating
Indoor Design Temperature
21 C
70 F
Unoccupied Space Design Temperature
13 C
55 F
Outdoor Design Temperature
Note1
Note1
Annual Heating Degree Days
Note1
Note1
Largest Number of Monthly Heating Degree
Note1
Note1
Days
Cooling
Indoor Design Temperature
24 C
75 F
Outdoor Design Dry Bulb Temperature
Note1
Note1
Outdoor Design Wet Bulb Temperature
Note1
Note1
Metric data are based on Celsius degree days to a base of 18 C. Inch-pound
data are based on degree days Fahrenheit to a base of 65 F.
SOW-126
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