REMKO KWK EC ZW SERIES Ceiling chests for installation into false ceilings

Ceiling chests for niche installation

The optimum, invisible solution for offices, banks or hotels because of its small installation height. Thanks to the modern, energy-efficient EC motor, the installed fan is infinitely variable. This increases the user's comfort. The rectangular device air outlet is designed to accommodate adjustable air outlet grilles for an individual distribution of air. The air is filtered in the unit's air intake with a reclaimable plug-in filter. The internal tangential fan allows multiple airflow settings. The diagonally fitted copper-aluminium heat exchanger is designed for cooling medium temperatures of up to 80°C. The unit can easily be upgraded to a 4-pipe system through the installation of a heating register. The register connections can be mounted on either side of the unit in a condensate-insulated housing. A valve assembly for 2- and 4-pipe systems are available as accessories for cooling control.

  • Invisible mounting in intermediate spaces
  • Low installation height
  • Can be positioned flexibly
  • Minimum weight
  • User-friendly control
  • Low-noise unit operation
  • Particularly narrow dimensions
  • Simple upgrading of the unit to a 4-pipe design
  • Suitable for horizontal installation
  • Infinitely variable EC fan

Technical data

VariantKWK 135 EC ZWKWK 175 EC ZWKWK 225 EC ZWKWK 265 EC ZWKWK 345 EC ZWKWK 395 EC ZWKWK 525 EC ZWKWK 605 EC ZWKWK 735 EC ZWKWK 875 EC ZW
Cooling capacity1,31 kW1,75 kW2,18 kW2,60 kW3,43 kW3,89 kW5,22 kW6,06 kW7,34 kW8,78 kW
Heating capacity1,63 kW2,06 kW2,58 kW2,95 kW3,81 kW4,30 kW5,69 kW6,44 kW7,76 kW9,16 kW
Air volume flow rate min.-max.84-298 m³/h98-321 m³/h133-394 m³/h147-432 m³/h196-580 m³/h217-623 m³/h320-882 m³/h344-924 m³/h378-1225 m³/h405-1232 m³/h
Sound pressure level min.-max.19-38 dB(A)19-38 dB(A)20,42 dB(A)20-42 dB(A)21-38 dB(A)21-38 dB(A)18-46 dB(A)18-46 dB(A)20-52 dB(A)20-52 dB(A)
Sound power level min.-max.27-46 dB(A)27-46 dB(A)28-50 dB(A)28-50 dB(A)29-46 dB(A)29-46 dB(A)26-54 dB(A)26-54 dB(A)28-60 dB(A)28-60 dB(A)
Power supply230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz230/1~/50 V/Ph/Hz
Electr. nominal power consumption31 W33 W35 W36 W35 W36 W58 W61 W77 W82 W
Electr. nominal current consumption0,13 A0,14 A0,15 A0,16 A0,15 A0,16 A0,25 A0,27 A0,33 A0,36 A
Operation pressure, max.1500 kPa1500 kPa1500 kPa1500 kPa1500 kPa1500 kPa1500 kPa1500 kPa1500 kPa1500 kPa
Medium connections1/2 inch1/2 inch1/2 inch1/2 inch1/2 inch1/2 inch1/2 inch1/2 inch1/2 inch1/2 inch
Nominal medium flow0,23 m³/h0,30 m³/h0,37 m³/h0,45 m³/h0,59 m³/h0,67 m³/h0,90 m³/h1,04 m³/h1,26 m³/h1,51 m³/h
Nominal medium flow (heating)0,28 m³/h0,35 m³/h0,44 m³/h0,51 m³/h0,65 m³/h0,74 m³/h0,98 m³/h1,11 m³/h1,33 m³/h1,57 m³/h
Nominal pressure loss, internal ³)14,4 kPa17,1 kPa18,3 kPa19,4 kPa26,8 kPa27,5 kPa25,7 kPa27,6 kPa27,7 kPa27,8 kPa
Nominal pressure loss, internal heating coil18,0 kPa20,2 kPa21,7 kPa22,1 kPa29,8 kPa30,4 kPa28,0 kPa29,4 kPa29,3 kPa29,0 kPa
Medium volume cooling coil / heating coil0,7 l0,7 l1,0 l1,0 l1,4 l1,4 l1,7 l1,7 l2,0 l2,0 l
Condensate drainage connection20 mm20 mm20 mm20 mm20 mm20 mm20 mm20 mm20 mm20 mm
Dimensions h/w/d450/545/215 mm450/545/215 mm450/745/215 mm450/745/215 mm450/945/215 mm450/945/215 mm450/1145/215 mm450/1145/215 mm450/1345/215 mm450/1345/215 mm
Weight11,4 kg11,9 kg14,2 kg15,0 kg20,2 kg21,2 kg23,6 kg25,1 kg27,5 kg29,0 kg
Protection classX0 X0 X0 X0 X0 X0 X0 X0 X0 X0

Accessories / Spare parts

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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