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This chapter introduces the fundamentals of Split Systems, a common HVAC solution for small to mid-sized commercial spaces. These systems separate the outdoor unit (containing the compressor and condenser) from the indoor unit (evaporator coil and air handler)...

This chapter covers the key functions, components, and applications of Rooftop Units (RTUs)—self-contained HVAC systems installed on building rooftops. RTUs are widely used in commercial settings like retail stores, offices, and schools due to their compact fo...

This chapter explains the fundamentals of Heat Pumps — highly efficient HVAC systems that provide both heating and cooling by transferring heat rather than generating it. Heat pumps work by moving thermal energy between indoor and outdoor environments, using a...

Variable Air Volume (VAV) systems are a type of HVAC distribution system designed to efficiently regulate indoor air temperature and airflow by varying the volume of conditioned air delivered to different zones. Unlike constant volume systems that deliver a fi...

Description: Variable Refrigerant Flow (VRF) systems are advanced HVAC solutions that use refrigerant as the sole medium for both heating and cooling. By precisely controlling the amount of refrigerant sent to each indoor unit, VRF systems provide high-effici...

This chapter covers the entire workflow from estimating pass off, to project closeout.