Overview
A cold air distribution system refers to supplying air at low temperatures of around 42 to 50°F instead of the customary 55°F. Cooling supply air below 55°F reduces the supply air volume dramatically, thereby reducing the first cost of the air-handling equipment and recurring energy costs. Humidity levels can be lower - within the range of 40 to 50%, resulting in improved air quality, comfort and productivity. The physical size of HVAC equipment is smaller, resulting in smaller mechanical rooms, less dead space above ceilings, and more room for occupants.
Nonetheless, cold air production and distribution is not straight forward and requires more attention to details during the design phase. This includes detailing to prevent condensation or sweating on the cold surfaces, dumping of cold air and careful selection of ceiling diffusers. Duct leakage is more of a concern and coil selection is based on parameters that are different from conventional designs.
This 2-hour course outlines the application considerations for the successful design, installation and operation of a cold air HVAC system. This course is aimed at mechanical and HVAC engineers, architects, building designers, energy auditors, operational & maintenance personnel, sales & marketing personnel, and others.
In this course, you need to review the document titled “HVAC Optimization with Cold Air Distribution” and take a multiple-choice quiz consisting of fifteen (15) questions to earn PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Design concept of cold air distribution
- Benefits of cold air distribution
- Cold air relationship to air handling equipment
- Cold air relationship to architectural & mechanical spaces
- Cold air relationship to indoor air quality
- Cold air relationship to energy & cost savings
- Concerns of cold air distribution (condensation, sweating and dumping)
- Cold air control strategies
- The design issues and checklist
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
HVAC Optimization with Cold Air Distribution
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