ASHRAE 62.2. A standard for residential mechanical ventilation systems established by the American Society of Heating, Refrigerating and Air-Conditioning Engineers. Among other requirements, the standard requires a home to have a mechanical ventilation system capable of ventilating at a rate of...
ASHRAE 62.1 specifies minimum ventilation rates and other requirements to provide an air quality that is acceptable for human occupation. Since the Medical Office Building is a healthcare facility, it is very important that the building complies with this standard.
Residential indoor AIR quality and mechanical ventilation. All newly constructed low-rise residential buildings or additions that are greater than 1,000 ft2 shall meet the requirements of ANSI/ASHRAE Standard 62.2 for Indoor Air Quality and Mechanical Ventilation.
Aug 14, 2017 · The ASHRAE 62.1 User Manual provides guidance on selection of the zone’s secondary recirculation fraction. For a terminal unit with a ducted return to the zone served, E r = 0. For a design where the system-level return is used, such as a dual-fan or dual-duct, E r = 1. The purpose of this calculation is to appropriately credit zones for transfer air from other overventilated zones within the system.