REMKO DKT-4 SERIES Ceiling cassettes as 4-pipe system

Variant EDV-Nr. Cooling capacity
DKT 21-4 1611302 2,2 kW
DKT 51-4 1611322 4,1 kW
DKT 71-4 1611342 6,7 kW


REMKO DKT-4 SERIES Ceiling cassettes as 4-pipe system

Ceiling cassettes for heating and cooling

The warm room air is suctioned in a centred manner via an internal regenerative air filter. The four-sided special diffuser cover allows two, three or four sided air distribution below the ceiling. The three-stage low-noise radial fan allows the optimal adaptation of the airflow volume to prevailing conditions. The copper-aluminium heat exchangers are designed for medium temperatures of up to 80°C. The units are fitted as standard with a condensate pump. Optionally, fresh air can be blown in or adjoining rooms can also be cooled. A "cooling" valve assembly is supplied as standard for medium control. The control of the heating circuit can be adapted to the unit.

  • The ideal solution for optically discreet air-conditioning
  • Compact dimensions in standard European grid format
  • Low-noise unit operation
  • Service-friendly unit structure
  • Air outlet with adjustable fins
  • Installed condensate pump (up to 550 mmWS)
  • "Cooling" valve subassembly with connecting pipes 


Ceiling mounted cassettes for insertion into false ceilings are operated using a room temperature control or a precision room temperature control, either individually or in groups. The elegant and functional controls can be integrated into any wall decoration. The operating panel has a selector switch for the operating mode and the fan speed, a main switch, and a temperature controller for setting the desired room temperature.

Technical data

Variant DKT 21-4 DKT 51-4 DKT 71-4
Cooling capacity 2,2 kW 4,1 kW 6,7 kW
Heating capacity 1,9 kW 6,8 kW 11,5 kW
Nominal air volume per stage 360/450/660 m³/h 485/625/900 m³/h 500/825/1160 m³/h
Sound pressure level per stage 23/28/38 dB(A) 33/39/48 dB(A) 28/37/44 dB(A)
Sound power level per stage 32/37/47 dB(A) 42/48/57 dB(A) 37/43/48 dB(A)
Power supply 230/1~/50 V/Ph/Hz 230/1~/50 V/Ph/Hz 230/1~/50 V/Ph/Hz
Electr. nominal power consumption 60 W 90 W 90 W
Electr. nominal current consumption 0,27 A 0,41 A 0,46 A
Operation pressure, max. 1400 kPa 1400 kPa 1400 kPa
Nominal medium flow 0,40 m³/h 1,10 m³/h 1,52 m³/h
Nominal medium flow (heating) 0,10 m³/h 0,60 m³/h 0,99 m³/h
Nominal pressure loss, internal ³) 13,7 kPa 13,1 kPa 23,2 kPa
Nominal pressure loss, internal heating coil 31,4 kPa 29,2 kPa 13,6 kPa
Condensate drainage connection 16 mm 16 mm 16 mm
Dimensions grille h/w/d 30/720/720 mm 30/720/720 mm 30/960/960 mm
Dimensions h/w/d 298/570/570 mm 298/570/570 mm 298/825/825 mm
Weight 21,5 kg 22,5 kg 44,6 kg
Series color weiß weiß weiß
Protection class X0 X0 X0

Accessories / Spare parts

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REMKO DKT 21-4 jpg, 0.2 MB
Assembly drawings
REMKO DKT 21-4 jpg, 0.1 MB

Cooling load calculation for air-conditioners

The following rule of thumb applies when calculating the cooling capacity:
Approximately 30 W of cooling capacity are required per cubic meter. The cooling capacity for a room with a surface area of 28 m2 and height of 2.5 m can be calculated as follows:

28 m2 x 2,5 m x 30 W/m3 = 2.100 Watt (2,1 kW)

We recommend that you always calculate the cooling capacity for the room precisely.

Cooling load calculation Calculate required cooling capacity

Cooling load calculation