The e+ principle

The world’s most efficient range of chillers. Blue e+.

What are the basic features of the
Blue e+ chillers?

A special short video.
Play video

Energy efficiency thanks to
DC inverter technology

Future-proof climate control.

  • Active cooling circuit with speed-regulated components for demand-based cooling
  • High control accuracy thanks to needs-based DC inverter technology with two regulating modes


  • 55% less refrigerant as a result of using microchannel technology

Transparent efficiency comparison.

  • Energy Efficiency Ratio (EER) –
    the standard-compliant efficiency value
  • Seasonal Energy Performance Ratio –
    the power-specific efficiency value for actual annual energy consumption
Download brochure (PDF)

Proven savings potential
with leading technologies.

TopTherm Plus


The first chiller series with nano-coating

Blue e+


The first chiller series with DC inverter technology

Maximum flexibility

One device for all supply voltages and networks.

Multi-voltage capability video

Suitable for worldwide
use with:

  • 380-415 V, 3~, 50 Hz (+/-5%)
    440-480 V, 3~, 60 Hz (+/-5%)
  • Wide operating limits: -5°C to +50°C

Maximum flexibility

  • One unit for all voltages and networks, suitable for worldwide use thanks to inverter
  • Flexible output control (20-100%)

Reduced complexity saves effort and storage space.

  • One standard model, one range of spare parts
  • Lower storage and logistics costs

International approvals and certifications:

  • cULus Listed
  • EAC
  • CCC
  • TÜV Nord GS
  • TÜV Nord-tested output measurement

Maximum flexibility

Mounting and installation.

  • Plug and play
  • Identical footprint for all performance classes
  • Minimal footprint (0.29 m²)
  • Extensive range of system accessories
  • Flexible air routing
  • Wide operating limits: -5°C to +50°C

Rapid assembly.

  • Handles for convenient transport and positioning
  • Eyebolts for easy mounting
Speed-controlled pump
Integrated free cooler (hybrid operation)
Water-cooled condenser
Oil/emulsion as cooling medium
Pipework free from non-ferrous metals for deionised water

Longer service life due
to component-friendly cooling.

Guaranteed constant medium
temperature control.

Everything integrated

Integral flow sensor
Integral fill level monitoring
Integral overflow valve
Integral filter mat monitoring
Extensive remote ON/OFF functions
Flexible output control