HVAC Economizers 101 Principles and Operations for Efficiency
HVAC Economizers 101 Principles and Operations for Efficiency
Greg Jourdan, Wenatchee Valley College, Srinivas Katipamula, Ph.D. and Michael Brambley, Ph.D., Battelle Pacific Northwest Division
EA
Exhaust Air
RA
Return Air
OA
Outside Air
MA
Mixed Air
SA
Supply Air
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Disclaimer
This presentation was prepared specifically for use as college training material. It shall not be modified without the consent of the authors.
This presentation represents sponsored research activities. Neither the Client nor Battelle warrants the accuracy, completeness or usefulness of the information. Reference herein to any specific commercial product, process or service by trade names or manufacturer does not constitute an endorsement or recommendation.
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What We'll Cover in the Class
Introduction and Background Information 1. Economizer Fundamentals 2. Economizer Control Methods 3. Why Economizers Fail and Increase Energy Use 4. Economizers on Packaged Roof Top Uints 5. Typical Economizer Controls of Rooftop Units that Utilize
Honeywell Controls 6. Manufacturer Specific RTU Economizer Controls 7. Central Air Handling Units Economizers and Controls 8. Dampers: Types, Actuators, & Characteristics 9. Determining the TRUE % of OSA Air Using Charts and Formulas 10. General Maintenance, Testing, and Troubleshooting of Packaged
RTUs and Central AHU Economizers
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HVAC Economizers 101
Introduction and Background Information on
Economizer Project
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Recommended Reading and References
? Control Systems for Heating, Ventilating, and Air Conditioning, By Roger Haines and Douglas C. Hittle, Springer Publishers at
? Honeywell Technical Reference Manual at web site:
? HVAC Control Systems, by Ronnie Auvil, ATP Publishers ? American Society of Heating, Refrigerating and Air-Conditioning Engineers
(ASHRAE) Handbook of HVAC Systems and Equipment ? Refrigeration and Air Conditioning Technology By Whitman, Johnson, and
Tomczyk, Delmar Publishers ? Eugene Water and Electric Board at: ? PNNL web site at: ? Lennox web site at: ? Portland Energy Conservation Inc., at: ? Trane web site at: ? Carrier web site at:
V12_ETI372,00.html ? York web site at: ucts/Industrial___Commercial_HVAC_Equipment.html
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