By David J. Fruchtman, PE Good heating, ventilating, and air-
conditioning systems are important features of every modern
building. When these systems are carefully integrated into the
building design, occupants can enjoy a comfortable environment
in aesthetically pleasing architecture. Mechanical systems will
impact many building elements, including the floor area and
layout, ceiling design, roof design, planters, and other site
features. Floor Area and Layout Most mechanical systems impact
floor layouts of a building. Some systems require a single large
mechanical room for equipment such as air handlers. Other
systems require multiple closets for equipment such as water
source heat pump units. Yet others require air shafts to move
conditioned air from floor to floor. Poor placement of these
spaces could adversely affect movement in the space or result in
the loss of valuable lease space. Wherever possible, equipment
rooms should be located adjacent to elevator shafts, electrical
equipment rooms, shell and co