Air Conditioning
A/C System Tests (cont'd)
21-31
To complete the charts:
Mark the delivery temperature along the vertical line.
Mark the intake temperature (ambient air temperature) along the bottom line.
Draw a line straight up from the air temperature to the humidity.
Mark a point 10 % above and 10 % below the humidity level.
From each point, draw a horizontal line across the delivery temperature.
The delivery temperature should fall between the two lines.
Complete the low-side pressure test and high-side pressure test in the same way.
Any measurements outside the line may indicate the need for further inspection.
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