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TRG-TRC001-EN 33
period four
Air Quantity
notes
The third step is to determine the required supply air conditions. This is where
the coil curves are used. Using the curvature of the nearest coil line as a guide,
draw a curve from the mixed-air condition C until it intersects the SHR line.
Point D, at which this curve crosses the SHR line, represents the supply air
condition that will absorb the room’s sensible and latent heat in the correct
proportions needed to maintain the desired room conditions. Here, this supply
air condition is found to be 56.5°F DB and 55.2°F WB.
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Figure 54