ASHRAE Design Guide for Dedicated Outdoor Air Systems (DOAS)

Publisher: American Society of Heating Refrigerating and Air-Conditioning Engineers (ASHRAE)
Year: 2017
No of Pages: 152 Pages
Size: 22.4 MB
File Format: PDF
Book Description:

A DOAS uses separate equipment to condition all of the outdoor air brought into a building for ventilation and delivers it to each occupied space, either directly or in conjunction with local or central HVAC units serving those same spaces.

A DOAS system (1) improves humidity control, (2) reduces energy use, (3) simplifies ventilation design and control, (4) uses heating and cooling equipment that doesn't provide ventilation and/or dehumidification (e.g., radiant panels or passive chilled beams), and (5) reduces installation cost.

Comprehensive guidance from industry experts can simplify DOAS design, installation, operation, and management.

DOAS is growing in popularity but is still a relatively new technology. The lack of DOAS exposure and experience means many systems designed and installed today don't take full advantage of all the benefits DOAS can offer. ASHRAE Design Guide for Dedicated Outdoor Air Systems consolidates existing material to focus on the major issues while referring to supplemental sources for more specialized or in-depth information. 

Chapter 1: Introduction
Chapter 2: Outdoor Air and Load Requirements
Chapter 3: System Selection (DOAS Equipment Configurations ,System Selection Considerations) 
Chapter 4: Detailed Design Considerations
Chapter 5: Controls
Chapter 6: Construction
Chapter 7: Operation and Maintenance
Appendix A: Sample DOAS Installation Checklist
Appendix B:Sample DOAS Operational Checklist

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