Which type of duct system is used primarily when the duct system and the air handler are not located on the same level?
A) plenum-type duct system
B) extended-plenum duct system
C) reducing-extended-plenum duct system
D) perimeter duct system

Question

Quizplus · Accepted Answer

An extended-plenum duct system would best suit when the duct system and the air handler are not located on the same level. In this system, the main supply duct extends from the air handler and then splits off into smaller ducts that lead to individual rooms. This allows for greater flexibility in routing ductwork around obstacles and through different levels of a building.

Which Type of Duct System Is Used Primarily When the Duct