Constant Air Volume CAV System Explained | Building Management System Training | BMS Training 2021

[@shanea1314]

Awesome, thank you sir. Very helpful content 👍🏽👍🏽🙏🏽🙏🏽

[@TechSystems]

Most Welcome. Glad to hear that.

[@Shaaz_Line]

Dear I didn't understand about minimum requirements for 30% shall always open for bypass damper, why is it required. how can this be possible? please explain and thanks for video.

[@TechSystems]

Usually damper have a minimum opening position to fulfill the ventilation requirement for the aea being served. Minimum percentage can be any value depending on the area requirement.

[@غيرنفسك-ب2ن]

please, i couldn't understand the explanation of the bypass damper which could be installed inside the supply duct and allow the air to exit to the ceiling plennum box when less cooling is required, could u please simplify it to be easily understood? and thanks in advance

[@TechSystems]

A terminal unit is installed in each zone which consist of a heater/heating coil and a damper similar to the damper found inside the VAV box. The terminal unit is designed such that when damper starts closing the supply air starts to bypass into the ceiling from where it is then added to the return air. This design is not common and it can be considered as type of VAV as air flow to the zone will be Changing when damper closing or opening but the AHU have constant speed fan. Hope you got the answer.

[@bmssystemkmc5360]

like