Heating & Air Conditioning
Work Example 6

WorkKey Level: 5
NATEF Automotive Tasks: VII.A.6

Humidity plays a role in air conditioning. It is not just the outlet temperature that cools.  
Many customers will measure the Outlet Temperature on a 90% humidity day and 
complain that the system will not get cold enough. 

If you tried a (23⁰C) wet Bulb and (25⁰C) dry bulb, the Relative humidity would be _______%

Solution:

Reading off of the chart:
25-degrees Celsius on the bottom and 23-degrees Celsius on the top,
they intersect at approximately 85%.