HVAC System

vav system design

Primary Airflow Capabilities All primary air dampers can shut off the primary airflow completely. However, complete shutoff of primary airflow is not recommended if the VAV terminal unit serves a zone that has a heating load If the zone has a heating load, the primary air damper should be specified to have a minimum airflow …

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what is a vav box

Both single-duct and fan-powered VAV terminal units have the same purpose, to provide heating, cooling, and ventilation to the temperature zone (group of spaces controlled by a single zone temperature sensor) that each VAV terminal unit serves. Physical Characteristics Primary Air Inlet Single-duct and fan-powered VAV terminal units have one (typically round) primary air inlet …

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what is an air duct

Ductwork is used to convey air between the air systems and the terminal equipment and spaces which these air systems serve. Construction Common cross-sectional shapes for ductwork are rectangular, round, and flat oval. Rectangular ductwork is normally used for main ducts and runouts to air devices (air inlets and outlets) that have a rectangular neck. …

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what is the meaning of duct

Ductwork is used to convey air between the air systems and the terminal equipment and spaces which these air systems serve. Construction Common cross-sectional shapes for ductwork are rectangular, round, and flat oval. Rectangular ductwork is normally used for main ducts and runouts to air devices (air inlets and outlets) that have a rectangular neck. …

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what is ductwork

Ductwork is used to convey air between the air systems and the terminal equipment and spaces which these air systems serve. Construction Common cross-sectional shapes for ductwork are rectangular, round, and flat oval. Rectangular ductwork is normally used for main ducts and runouts to air devices (air inlets and outlets) that have a rectangular neck. …

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what is duct

Ductwork is used to convey air between the air systems and the terminal equipment and spaces which these air systems serve. Construction Common cross-sectional shapes for ductwork are rectangular, round, and flat oval. Rectangular ductwork is normally used for main ducts and runouts to air devices (air inlets and outlets) that have a rectangular neck. …

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cooling tower design

For all cooling tower systems (open and closed-circuit), cooling water is pumped through the water-cooled equipment where it absorbs the heat rejected by the equipment. This water is then circulated to the cooling tower where it is cooled (directly or indirectly) mainly by the evaporation of a portion of the water that is in direct …

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cooling tower installation

Because cooling towers are frequently used to reject heat from water-cooled refrigeration equipment, the pipe conveying water from the cooling tower is often referred to as the condenser water supply pipe and the pipe conveying water to the cooling tower is often referred to as the condenser water return pipe. This is the naming convention …

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what are cooling towers used for

Cooling towers are common components of centralized cooling systems. Cooling towers are used either in conjunction with water-cooled chillers for chilled water systems or with plate and frame heat exchangers for water source heat pump systems. Cooling towers are used for HVAC applications in conjunction with water-cooled HVAC equipment to cool water by exposing it …

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what does a cooling tower do

Cooling towers are common components of centralized cooling systems. Cooling towers are used either in conjunction with water-cooled chillers for chilled water systems or with plate and frame heat exchangers for water source heat pump systems. Cooling towers are used for HVAC applications in conjunction with water-cooled HVAC equipment to cool water by exposing it …

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