Example 2: USING THE HVAC DESIGN REVIEW FORM

Load Calculation: Manual J Abridged Edition Equipment Selection: Heat Pump

The form below illustrates the Manual J Abridged Edition (AE) forms and the equipment selection process for a heat pump. The Manual JAE condenses the basic elements of the load calculation into a functional procedure to promote comprehension in students. Manual J1AE load calculations are valid however; they must meet all of the requirements on the Alternative Abridged Edition Check List (page 6).

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Part I: Manual JAE – Forms used for Load Calculations

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Part II: Manual S – Equipment Expanded Performance Data

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Part III: Manual D Duct Sizing The FC 036 blower assembly can deliver approximately 1,000 CFM on Medium fan speed at 0.58iwc external static pressure (ESP), see #20 below. This airflow is dependent on a few factors that will come into play on the Friction Rater Worksheet. For more explanation, see the discussion about “Adjusting Design Airflow” (page 7) in “Understanding and Using the HVAC System Design Review Form.”

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Duct Sketch

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