VRV 

Variable refrigerant volume allows individual zone control, leading to high efficiency and energy savings. Suitable for commercial applications.

VRF

variable refrigerant flow come in 2 formats. 2 pipe system (all units either cool or heat at once). 3 pipe system

( individual unit control )

CRAC UNITS
PACKAGED UNITS

A packaged unit is the all in one cooling and heating system (no indoor unit required). packaged units contain all their parts in one outdoor unit, which sits on the roof of the building.

 A computer room air conditioning unit is a device that monitors and maintains the temperature, air distribution and humidity in a network room and data center.