S23 -- Air-Cooling and Dehumidifying Coils (I-P)

Most equipment used today for cooling and dehumidifying an airstream under forced convection incorporates a coil section that contains one or more cooling coils assembled in a coil bank arrangement. Such coil sections are used extensively as components in room terminal units; larger factory-assembled, self-contained air conditioners; central station air handlers; and field built-up systems. Applications of each coil type are limited to the field within which the coil is rated. Other limitations are imposed by code requirements, proper choice of materials for the fluids used, the configuration of the air handler, and economic analysis of the possible alternatives for each installation. This chapter discusses uses, selection, performance, and maintenance of these coils. Uses for Coils Coil Construction and Arrangement Coil Selection Airflow Resistance Heat Transfer Performance of Sensible Cooling Coils Performance of Dehumidifying Coils Determining Refrigeration Load. Maintenance Symbols