Posts

Showing posts from April 14, 2025

Fan coil unit (FCU)

Image
 Fan coil unit (FCU) A Fan Coil Unit (FCU) is a type of HVAC equipment that: 1.Conditions air:  Heats, cools, or ventilates air for a building or zone. 2.Uses coils:  Contains heating and/or cooling coils to transfer heat. 3.Employs a fan:   Circulates air over the coils to distribute conditioned air. Types of FCU : 1.Two-pipe FCU:  Uses two pipes for heating and cooling. 2.Four-pipe FCU:  Uses four pipes for simultaneous heating and cooling. 3.Chilled beam FCU:  Uses chilled water to cool and dehumidify air. Key components of an FCU: 1.Coils:  Heating and cooling elements (e.g., chilled water, hot water, or DX coils). 2.Fan:  Circulates air over the coils. 3. Motor:  Powers the fan. 4.Drain pan and trap:  Collect and remove condensate. 5.Controls:  Regulate FCU operation (e.g., thermostats, sensors). Factors affecting FCU performance: 1.Proper sizing and selection. 2. Regular maintenance and cleaning. 3.Coil cleaning and maint...