Trane trg-trc001-en Air Conditioner User Manual


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TRG-TRC001-EN 31
period four
Air Quantity
notes
To demonstrate how the required supply airflow is determined, assume that a
room’s sensible heat gain is 80,000 Btu/hr and its latent heat gain is 20,000 Btu/
hr. First, divide the sensible heat gain by the total heat gain. The resulting
sensible heat ratio (SHR) is 0.80.
The second step is to determine the entering air conditions. Design room air is
78°F DB, 50% RH; design outdoor air is 95°F DB, 78°F WB
Twenty-five percent (25%) outdoor air is required for ventilation purposes.
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