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9. Consider a filter installed in an air handler and located between the mixed a

ID: 2074662 • Letter: 9

Question

9. Consider a filter installed in an air handler and located between the mixed air outlet and the heating coil. For a certain situation, a designer specifies a filter that results in the requirement to specify a supply air temperature of 160 F (much higher than a typical value of 110 F). The filter has a pressure drop that is too high at design conditions a. b. This problem is likely caused by poor insulation in the zone envelope c. The problem is likely caused by an improper fan selection d. none of the above answers

Explanation / Answer

the problem is likely caused by improper fan selection , if prseeure is too high temperature should fall below 110F

if there is poor insulation it should loose more heat so temperature should fall