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Flat ceiling air coolers / Evaporators

Air coolers to meet hygiene requirements in small walk-in cold rooms



  • Compact, very flat air cooler for small cold and low-temperature storage rooms
  • Particularly suitable for storing a wide range of goods in a hygienic manner
  • Reduced defrosting cycles thanks to high-performance diagonal fan
  • Reliable cooling ensures durability and low maintenance requirements
  • High efficiency thanks to EC fan technology as standard 


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Powerful small air cooler

The FKN is specially designed for small, walk-in cold rooms. With its full corrosion protection coating, it is particularly suitable for the hygiene requirements relating to fresh food. The high-performance diagonal fan allows extended cooling phases with uniform air distribution in the cold room.

Product benefits

Your advantages at FKN/FKNT

Hygienic operation

thanks to a full corrosion protection coating (as standard)

Quiet EC diagonal fan

for energy-efficient operation as standard

Easy access

thanks to hinged condensation pan

Tube system:

Offset high-performance tube systems with internally grooved tubes


All product advantages at a glance


  • Cooling capacity from 0.2 to 2 kW
  • Temperature range: FKN: 0 – 40 °C / FKNT: -35 – 40 °C
  • 4 and 6 mm fin spacings 
  • Defrosting: Electric and hot gas
  • Operating pressure up to 25 bar/ 80 bar with CO2

Easy assembly

  • Easy access via hinged fan plate, completely removable
  • Very flat stainless steel hanging rails
  • Drain heating can easily be retrofitted/replaced
  • Heating rods and fans wired to terminal box 
  • Additional drip pan for vertical installation

Inspection and cleaning

  • Hinged / removable fan plate with drip tray for easy installation and cleaning
  • Smooth surfaces for easy cleaning
  • Heat exchanger can be cleaned from two sides

Energy efficiency

  • Diagonal fan for a constant cooling power in spite of frost formation
  • Optimized, offset tube system for maximum heat transfer
  • EC fans for energy-efficient operation as standard
  • Adjustment of the air volume flow according to the cooling load via external controller (0 - 10 V)

Corrosion protection

  • Corrosion-resistant aluminium housing with scratchproof powder coating
  • Heat exchanger with special corrosion protection lacquer
  • More about powder coating protection


  • Defrosting for coil and drip pan at room temperatures < 0 °C
  • Defrost safety thermostat interrupts electric defrosting if the defrost control system (accessory) malfunctions


Find suitable accessories for the FKN/FKNT

Plug-in module:

2-level EC fans (50% and 100% speed controlled)

Auxiliary heating

for condensation drain

Defrost safety thermostat

- switch contact opens at +25 °C and closes at +6 °C

ST heating rods

for defrosting coil and drip pan tR > 0 °C


Private cold room - FKN

This compact and very flat air cooler can be used in small walk-in cold rooms in private properties too. In a private setting, reliable cooling and low-maintenance operation are particularly important.

ApplicationStorage rooms
AddressBremen / Germany

Product documentation

Technical data

All important technical data

Product name FKN FKNT
Capacity range 0,2 - 2 kW 0,2 - 1,5 kW
Temperature range 0 - 40°C -35 to +40°C
Tubes Internally grooved Internally grooved
Tube system offset offset
Number of fans 1 - 2 1 - 2
Fan type EC / forced / IP 54 EC / forced / IP 54
Fan size 200 mm 200 mm
Fin spacing 4 / 6 mm 4 / 6 mm
Energy efficiency class B to D B to D


How can we help you?

We consult you competently and comprehensively!

Make a concrete enquiry now!

Tel.: +49 (0) 7156 / 2001-29