HVAC Procedures & Forms Manual (2nd Edition) by Herbert C. Wendes

By Herbert C. Wendes

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Extra info for HVAC Procedures & Forms Manual (2nd Edition)

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Based on tests and other data. 8. Calculate the peak and seasonal heating, cooling and cfm loads actually required to meet current conditions for the overall building and various areas of the building. Compare with the design and existing capacities. Evaluation of Energy Improvements 9. List all problems with the building, systems and equipment. 10. Generate energy improvements and develop those with the most potential. Write a list of improvements. 11. Calculate the potential energy savings in terms of Btu’s and kWh’s, and in costs.

6. Fill out the flow or pressure drop water balance report. List primary and secondary circuits in groups and in sequence. List valves and terminals in the sequence they occur starting at the pump, along with identification and location if needed. Indicate the size. Enter the required cfm and the differential pressure reading required for the particular flow measuring device being used or from the manufacturer’s published pressure drop across the item at design flow. List bypasses. When proportionately balancing terminals, list percents of design in preliminary readings and gpm only for the final.

Ft. and totaled $339,800 for the year. The targeted energy reduction is 50 percent, reducing the Btu per sq. ft. from 276,000 to 138,000 Btu per sq. ft. 90 per sq. ft, or $171,000 per year. PROBLEMS WITH EXISTING HVAC SYSTEMS AND BUILDINGS 1. The building has two energy-wasting HVAC systems which simultaneously heat and cool, an interior high pressure terminal reheat system and a high pressure perimeter induction system with about one third primary air taken from the outside. 2. The 310-ton chiller, 6,000,000 Btuh boiler and the hot- and chilled-water pumps must run year round because of the terminal reheat system, wasting a great deal of energy.

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