Tell me what is pac, hvac and ahu full form, their temperature, pressure why use pac in server room

Question

Accepted Answer

PAC stands for Precision Air Conditioning, HVAC stands for Heating, Ventilation, and Air Conditioning, and AHU stands for Air Handling Unit.

PAC is used in server rooms to maintain a constant temperature and humidity level to protect sensitive equipment.
HVAC is used to control the temperature, humidity, and air quality in buildings.
AHU is a device used to circulate and regulate air as part of a heating, ventilating, and air-conditioning (HVAC) system.
PAC temperature is typically maintained between 20-25°C and humidity between 40-60%.
HVAC temperature and humidity levels vary depending on the building and its intended use.
AHU pressure is typically maintained between 0.5-1.5 inches of water column (wc).

Top Amps Electrical Facility Services Electrical Supervisor interview questions & answers