The CRAC (Computer Room Air Conditioner) is a precision cooling system developed specifically for IT environments such as data centers, server rooms, and telecommunications centers.
Difference Between CRAC and Regular Air Conditioning
| Feature | CRAC | Regular AC |
|---|---|---|
| Temperature precision | ±0.5°C | ±2-3°C |
| Humidity control | Yes, precise | Limited |
| Operation | 24/7/365 | Intermittent |
| Filtration | High efficiency | Basic |
| Redundancy | Designed | Not planned |
| Monitoring | Advanced | Basic |
CRAC Components
- Compressor: Usually scroll or screw
- Evaporator: Direct expansion coil
- Condenser: Remote (air or water)
- Humidifier: Electrode or steam
- Dehumidifier: Electric heater
- Filters: MERV 8 to HEPA
- Controller: Microprocessor with BMS