REMKO KWK ZW SERIES Ceiling chests as 2-pipe or 4-pipe system

Variant EDV-Nr. Cooling capacity
KWK 125 ZW 1664300 1,20 kW
KWK 165 ZW 1664310 1,63 kW
KWK 205 ZW 1664320 2,09 kW
KWK 255 ZW 1664330 2,51 kW
KWK 305 ZW 1664340 3,08 kW
KWK 355 ZW 1664350 3,51 kW
KWK 455 ZW 1664360 4,54 kW
KWK 535 ZW 1664370 5,35 kW
KWK 595 ZW 1664380 5,92 kW
KWK 725 ZW 1664390 7,24 kW


REMKO KWK 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. 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

Technical data

VariantKWK 125 ZWKWK 165 ZWKWK 205 ZWKWK 255 ZWKWK 305 ZWKWK 355 ZWKWK 455 ZWKWK 535 ZWKWK 595 ZWKWK 725 ZW
Cooling capacity1,20 kW1,63 kW2,09 kW2,51 kW3,08 kW3,51 kW4,54 kW5,35 kW5,92 kW7,24 kW
Heating capacity1,49 kW2,02 kW2,42 kW2,87 kW3,47 kW4,03 kW4,95 kW5,77 kW6,27 kW7,65 kW
Nominal air volume per stage120/200/260 m³/h140/220/290 m³/h190/290/370 m³/h210/320/410 m³/h280/390/490 m³/h310/420/530 m³/h400/570/730 m³/h430/610/780 m³/h420/630/870 m³/h450/670/920 m³/h
Sound pressure level per stage17/25/32 dB(A)17/25/32 dB(A)23/31/39 dB(A)23/31/39 dB(A)21/27/33 dB(A)21/27/33 dB(A)26/34/42 dB(A)26/34/42 dB(A)26/33/43 dB(A)24/33/43 dB(A)
Sound power level per stage25/33/40 dB(A)25/33/40 dB(A)31/39/47 dB(A)31/39/47 dB(A)29/35/41 dB(A)29/35/41 dB(A)34/42/50 dB(A)34/42/50 dB(A)32/41/51 dB(A)32/41/51 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 consumption35 W39 W47 W51 W59 W71 W97 W107 W120 W139 W
Electr. nominal current consumption0,15 A0,17 A0,2 A0,22 A0,26 A0,31 A0,42 A0,47 A0,52 A0,60 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 flow0,21 m³/h0,28 m³/h0,36 m³/h0,43 m³/h0,53 m³/h0,60 m³/h0,78 m³/h0,92 m³/h1,02 m³/h1,24 m³/h
Nominal medium flow (heating)0,26 m³/h0,35 m³/h0,42 m³/h0,49 m³/h0,60 m³/h0,69 m³/h0,87 m³/h0,99 m³/h1,08 m³/h1,31 m³/h
Nominal pressure loss, internal ³)10,5 kPa13,3 kPa15,3 kPa17,3 kPa18,6 kPa19,9 kPa20,2 kPa22,6 kPa22,6 kPa23,4 kPa
Nominal pressure loss, internal heating coil13,0 kPa16,5 kPa17,7 kPa19,7 kPa20,9 kPa22,9 kPa22,5 kPa24,3 kPa24,0 kPa24,8 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
Weight11,1 kg11,6 kg13,9 kg14,7 kg19,9 kg20,69 kg23,3 kg24,8 kg27,2 kg28,7 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