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The range of Alfa LU-VE Arctigo ISDW glycol air coolers with one-way air flow, designed for applications in demanding cooling and freezing processes, in medium and large rooms. Cubic coolers adapted to work with refrigerants from HFC group, in the nominal capacity range from 1,65 kW to 248,6 kW.

They are equipped with AC or energy-saving EC fans with a diameter from 400 to 910 mm. The range of exchangers based on Helpman solutions, to ensure freshness of stored products at temperatures from - 40°C to + 10°C.

The series of Alfa LU-VE Arctigo ISDW offers a wide range of models, which enables proper selection to the customer’s requirements. It also guarantees the best conditions for storing fresh and frozen products, both in high and low humidity conditions. Models are available for dedicated applications, such as agricultural storage, models with additional compression or models for shock freezing.

Arctigo ISDW models are equipped with a block fin tubes with a square geometry, which provides a larger heat exchange surface, reduces the number of defrosts, extends cooling periods, reduces air pressure drop and fan energy consumption. The large heat exchange surface increases efficiency in frosty or dirty conditions.

A wide range of optional equipment: shut-up sock (S), air sock adapter ring (SR), streamer (ST), central junction box (CB/CB1), body and frame made of acid-resistant steel (SSC), fin protection (EP) or made of sea water resistant aluminium (SWR), double fin space (DF), service switch (SW), steering wheel cover 45°(H1) or 90°(H2) and many others.

Arctigo ISDW coolers are equipped with suction fans, from 1 to 6 pcs, with two fan motor speeds: 400V/3~/50Hz and 230V/1~/50Hz (for diameters of 400 and 450 mm) and two sound levels (Δ/Y connection) for AC 3ph fans. EC fans can be selected according to different rotation speeds. Build-in thermal contacts provide reliable protection against thermal overload.

Air intake from the block:


  • Better air distribution over the block surface resulting in better heat transfer.
  • Longer air release
  • Visible frost formation on the air intake side

Configuration examples:

  • Draw-through
  • Floor mounted
  • Inlet hood 90°
  • Fan casing 90°

  • Draw-through
  • Ceiling mounted
  • Inlet hood 45°
  • Fan casing 45°

  • Draw-through
  • Ceiling mounted
  • Inlet hood 90°
  • Shutup sock

Arctigo ISDW characteristics:

  • Nominal capacity: from 1,65 kW to 248,60 kW (ethylene glycol 35%, tj,in=-8°C, tj, out=-4°C, ta=0°C)
  • Air flow: from 2 598 m3/h to 117 838 m3/h
  • Block fin tubes:
    • Aluminium fins
    • Fin spacing: 4,0; 5,0; 6,0; 7,0; 8,0; 10,0; 12,0 mm
    • Smooth tubes: Ø5/8’’ Cu or smooth stainless steel tubes
    • Block geometry: 50 mm square
  • Fans:
    • From 1 to 6 pcs with diameter: 400, 450, 500, 630, 710, 800 and 910 mm
    • Power supply: 230V/1~/50Hz; 400V/3~/50Hz
    • AC or energy-saving EC fans
  • Maximum operation pressure: 10 bar
  • Temperature range in chamber: from -40°C to +10°C
  • DX expansion valve or pump supply

Arctigo ISDW advanteges:

  • Durable design of the cooler ensuring high quality of stored product
  • Block fin tubes and body adapted to work in demanding conditions, which ensures long products life
  • Low noise level in rooms where people stay
  • Infrequent defrost cycles for square block geometry
  • Modules can be stacked during transportation
  • High energy efficiency
  • Easy installation
  • Hanging drip tray

Arctigo ISDW defrost systems (option):

  • Electric defrost of the drip tray (E1)
  • Electric defrost heavy (E2)
  • Electric defrost light (E4)
  • Hot gas defrost (HG, HGC – with connection to the block)
  • Hot water defrost (HW)

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