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Data center cooling works on the principle of heat exchange, removing excess heat from the air and replacing it with cooler air. Servers and networking equipment generate substantial heat, necessitating effective cooling systems. These systems monitor and measure heat loads to identify areas requiring cooling.

Typically, hot air is exhausted outside, while air conditioners cool incoming air for indoor circulation. Data centers often use localization strategies for efficiency: hot aisle containment isolates hot air from servers, and cold aisle containment directs cool air where needed.

In some climates, a method called free cooling is used, where hot air is exhausted, and pre-cooled outside air is brought in, suitable for colder climates.

Air-cooled systems, featuring computer room air conditioners (CRAC) or units (CRU), control room temperature by filtering and cooling the air before recirculating it. Temperature and humidity sensors ensure optimal airflow and temperature to meet equipment needs.

There are two main types of cooling: liquid and air. Blauberg Motoren specializes in air cooling components, such as axial and centrifugal fans. Air cooling is suitable for small and medium-sized data centers and office buildings, especially in cold and temperate regions, due to its cost-effectiveness and ease of maintenance. 

Blauberg Motoren air cooling components:

 

Backward curved centrifugal fans

  Technical data

  AC

  EC

  DC

  Impeller diameter (mm)

  133 - 355

  133 - 450

  133 - 250

  Nominal voltage

  120V, 230V, 380V

  120V, 230V, 380V

  24V, 48V

 

  Frequency, Hz

  50/60

  50/60

 

  Air flow (m³/h)

  500 - 3250

  320 - 6800

  250 - 1350

  Protection class

  IP44

  IP44, IP55

  IP44, IP55

  Insulation class

  B, F

  B, F

  B, F

  Power imput (W)

  44 - 340

  27 - 1500

  30-200

  Perm. amb. Temp. (°C)

  -25…+50

  -25…+60

  -25… +60

  Speed control

 

  0 -10V DC / PWM / RS485

  0 -10V DC / PWM

  

Axial fans

 

  Technical data

  AC

  EC

  Impeller diameter (mm)

  200 - 450

  200 - 500

  Nominal voltage

  230V, 380V

  120V, 230V, 380V

  Frequency, Hz

  50/60

  50/60

  Air flow (m³/h)

  900 - 5000

  980 - 8800

 

  Protection class

  IP44

  IP55

  Insulation class

  B, F

  B, F

  Power imput (W)

  67 - 425

  55 - 750

  Perm. amb. Temp. (°C)

  -25…+50

  -25…+60

  Speed control

 

  0 -10V DC / PWM / RS485

 

Zentri-Pac series fans

 

 

 

 

 

  Technical data

  AC

  EC

  Impeller diameter (mm)

  190 - 250

  133 - 450

  Nominal voltage

  120V, 230V, 380V

  120V, 230V, 380V

  Frequency, Hz

  50/60

  50/60

  Air flow (m³/h)

  680 - 1500

  400 - 6800

  Protection class

  IP44

  IP44, IP55

  Insulation class

  B,F

  B,F

  Power imput (W)

  44 - 340

  32 - 1500

  Perm. amb. Temp. (°C)

  -25…+50

  -25…+60

  Speed control

 

 0 -10V DC / PWM /  RS485

 

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