Tech-Notes – HVAC & Electrical

– Air-intake contamination
The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) is proposing to set new minimum separation distance requirements to ensure that outdoor air on buildings intakes are not close to areas such as loading docks and combustion vents. When there is not enough distance between intakes and exhausts, the air entering a building can become contaminated.
Addendum aa to ANSI/ASHRAE Standard 62-2001 has been issued for review and public comment.
For more details, visit www.ashrae.org

– Energy simulations
ASHRAE is conducting research into why building energy simulations computer programs don’t always produce accurate forecasts. A faculty member in the civil, architectural and environmental engineering department at Drexel University in Philadelphia, P.A. is investigating the problem over the next 18 months.

Ground fault protection
– IPC Resistors of Mississauga, Ontario is offering two new educational guides for electrical consultants and service contracts. “Conversion Guide for Ungrounded Systems to High Resistance Grounding,” and the “Consultant Specification Guide to High Resistance Grounding,” offer detailed technical information about ground fault protection.
Visit www.ipc-resistors.com, or tel. 888-737-4787.