Introduction and Overview
Central HVAC systems, system selection, major system types.

Basic Design Considerations
Dimensions and units common to air-conditioning systems, the basics of energy balance, and how simple weather dependent loads are estimated.

Concepts of Environmental Comfort
Physiological and heat transfer considerations for human comfort, descriptions of environmental indices, ASHRAE comfort envelope.

Environmental Health and Indoor Air Quality
Airborne pollutants and contaminants, their relation to human health, and the ways in which HVAC systems can be used to maintain and improve indoor air quality.

Primary System Components
Purpose, operation and performance criteria of fuels, furnaces, refrigeration cycles and cooling towers.

Secondary System Components
Purpose, operation, and performance criteria of coils, fans, pumps, filters, ducts and vents.

Central Systems
Major HVAC system types, applications of a basic central system, selection of system components, heat exchanges and cooling coils.

All-Air Systems: Single-Path
Introduction to all-air systems; single-duct, single zone, constant volume systems; single-duct, zoned reheat, constant volume systems; single duct, variable air volume systems.

All-Air Systems: Dual-Path
Dual-path, all-air systems; dual-duct system; three-duct multizone system; dual-duct, variable air-volume system.

Air-and-Water and All-Water Systems
Characteristics of air-and-water systems, air-and water induction systems, air and water fan-coil systems, all-water systems.

Heat Pumps, Unitary Systems and Room Air Conditioners
Working principles of heat pumps; operation, applications, advantages and disadvantages of unitary systems and room air conditioners.

Energy Conservation and Heat Recovery Programs
Techniques for improving energy use, importance of energy conservation, description of heat recovery systems.

Thermal Storage Applications
Thermal storage techniques, water tank systems, rock bed systems, ice harvesting systems, ice-on-coil systems, encapsulated ice and other phase change materials (PCMs).

System Controls
Types of control action: two-position (on-off) control action; timed two-position control action; floating control action; proportional, proportional plus integral, and PID controls.