iQdata Cooling
Intelligent climate
control for Data Centre

Cooling solutions from SCHÄFER IT-Systems control the temperatures in your data centre with maximum energy efficiency and reduce your costs sustainably. Our diverse product range included company-developed Side, Back and InRack coolers, as well as enclosures for cold or warm aisles.

The modular architecture of these climate control solutions enables them to be adapted specifically to your individual requirements.



  • Enclosures (cold aisle / warm aisle)
  • Basic cooling accessories
  • Sidcooler CW (water cooling)
  • Sidcooler DX (coolant)
  • Backcooler
  • InRackcooler
  • Wall-mounted cooling units
  • Roof-mounted cooling units
  • Heat exchangers
  • Wide range of accessories for each product


Possible cooling capacity per rack
1 - 50 kW

  • Basic cooling (air)
  • Enclosure
  • Cold water (CW)
  • Coolant (DX)
What does “L35/L35” mean in the performance specification of wall and roof mounted cooling devices?

“L35/L35” means that a cooling performance of, for example, 750 W is achieved at an ambient temperature of 35 °C and a required internal rack temperature of 35 °C.

What do you have to pay attention to when setting up racks with wall-mounted or roof-mounted cooling devices?

Cooling devices that operate with coolants transfer their heat load from the rack into the installation room. This is increased by the waste heat from the compression cooling. The entire heat load should therefore be dissipated by a suitable room cooling system.

In this context, the information on sound emission contained in the data sheet should be observed, especially when offices are close by.

Do wall-mounted or roof-mounted cooling devices have any influence on the rack’s protection rating?

The cabinet’s protection rating of IP20 or IP54 is guaranteed to remain unchanged, even if cooling devices are used.

Why was the Sidecooler CW equipped with an especially large heat exchanging surface?

The large heat exchanging surface enables the Sidecooler CW to be operated with very high cold water temperatures. Depending on the heat load to be dissipated, a chilled water flow temperature of 22 °C can achieve a server supply air temperature of up to 26 °C.

In what different versions are the Sidecooler CW or DX available?

The Sidecooler is available in different versions for open architectures (in connection with a cold aisle enclosure), hybrid architectures (one side open, one side closed) as well as for closed architectures.

Is a condensation pump always needed in a Sidecooler?

As long as a condensate gradient pipe provided by the customer is installed below the Sidecooler, no condensate pump is required.

What server supply air temperatures are specified by the ASHRAE standard?

The ASHRAE standard is the planning basis for IT components.
Since 2011, there has been an ASHRAE classification in four levels 4.
Level A 1: server supply air temperature up to 33 °C
Level A 2: server supply air temperature up to 35 °C
Level A 3: server supply air temperature up to 40 °C
Level A 4: server supply air temperature up to 45 °C

What is meant by the term “Free cooling”?

Free cooling mean energy saving cooling without a chilled water unit. The higher the chilled water temperature is, the longer the heat load of the IT components can be dissipated in the free cooling mode, i.e. without any compression cooling. Free cooling enables a particularly low PUE value (Power Usage Effectiveness) to be achieved.