This division includes the plans, details, and schedules that describe the fire protection systems that are to be installed in the building. These systems can include, as applicable, wet-pipe or dry-pipe sprinkler systems, monitoring equipment, and alarms. A discussion of these systems is beyond the scope of this TRAMAN.

Although its the engineers responsibility to design heating, ventilating, and air-conditioning systems, the drafter who prepares drawings of the systems should have a basic understanding of the operating principles of each. Those principles, and a typical heating and air conditioning layout for a building, are discussed in the

Figure 4-5.Forced-air heating system.

following paragraphs. For a discussion of heating principles (including theory, measurement of heat, and heat transfer) and a discussion of the principles of refrigeration and air conditioning, you should read chapters 9 and 10 of Utilitiesman 3, NAVEDTRA 12532.