VETERANS BENEFITS ADMINISTRATION
VA REGIONAL OFFICE TECHNICAL CRITERIA
MECHANICAL
Heating, Ventilating and Air-Conditioning
The HVAC system should comply with Executive Order 13123 "Greening the Government through
Efficient Energy Management", and Executive Order 13148 "Greening the Government through
Leadership in Environmental Management". Website
http://www.eren.doe.gov/femp/aboutfemp/exec13123.htm, and
http://www.eren.doe.gov/femp/aboutfemp/exec13148.htm. Refer to the VA HVAC Design Manual for
Regional Office Projects for more detailed information at
http://www.va.gov/facmgt/standard/index.asp.
Engineering Economic Analysis
Select an HVAC system in accordance with Public Law 95-619, which requires a 20-year life cycle.
A cost analysis shall be performed to determine the most cost effective HVAC system for the
building.
Energy Conservation
Apply the requirements of ASHRAE/IESNA Standard 90.1-1999 "Energy Standard for Buildings
Except Low-Rise Residential Buildings", and EPA/DOE "Energy Star Building Program" website:
http://www.eren.doe.gov/femp/procurement. These standards apply to the building envelope, energy
distribution, systems and equipment for auxiliaries, heating, ventilating, air-conditioning, service
water heating, lighting and energy management. Provide certification to VA that the building is in
compliance with these standards.
Exterior Design Conditions
Exterior design conditions should be based on the latest ASHRAE climatic conditions, 99 percent for
heating and one percent for cooling.
Indoor Design Conditions
Summer
Winter
Room or Area
Degrees Fahrenheit
Offices, Conference Rooms, Lounges
78
Note 1
Computer Room
72 +/- 2
72 +/- 2
Electrical Equipment and Transformer Rooms
Note 2
50
Elevator Machine Rooms
104
50
Telephone Equipment Rooms
65-75
65-75
Toilets
78
70
1. Comply with ASHRAE 55.
2. Verify with equipment manufacturer.
MECHANICAL
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