DDC Outside Air Economizer System | HVAC Control

DDC Outside Air Economizer System | HVAC Control economizer dampersDDC Outside Air Economizer System  - Outside louvers allow the DDC control system to open dampers and introduce fresh air into the building. Building automation system, or the energy management system as it is sometimes called, monitors outside air temperature and humidity and based on a calculation and opens the outside air dampers when this calculation determines a precise set point. (more…)

OSHA Safety Rules and HVAC | Job & Work Safety

OSHA Safety Rules and HVACAs OSHA is concerned for the safety of workers on job sites this article will give you the basics for complying with OSHA rules on most job sites especially commercial and industrial construction sites. The requirements are different for compliance from management to the average worker and we will try to cover the basics for both management and worker. Almost every commercial or industrial job site will have a general contractor that manages a safety program. (more…)