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The range of Alfa LU-VE Arctigo ISBW glycol air coolers with one-way air flow for long-term storage of the fruits and vegetables. Cubic coolers are designed for work with cooling capacity from 1,84 to 319,24 kW. They are optimized for work at the air temperatures about 0°C and with the small temperature differences, it helps to prevent dehydration of the products. They are equipped with AC fans or energy-saving EC fans with diameters from 450 to 1000 mm.

The series of Alfa LU-VE Arctigo ISBW designed for storing fresh vegetables and fruits. The maximum height of the cooler is 587 mm. The large heat exchange surface increases efficiency in frosty or dirty conditions.

Air coolers can be equipped with a block fin tubes with a triangular or square geometry. The triangular geometry provides lower fin temperatures and higher capacity per m2 of the block surface, it allows to make radiator more compact. The square geometry results in a larger heat exchange surface area, which reduces air pressure drop and fan power consumption. This solution is suitable for applications requiring high relative humidity.

A wide range of optional equipment: diffuser (D), diffuser with defrost damper (DO), shut-up sock (S), air sock adapter ring (SR), streamer (ST), central junction box (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 ISBW coolers are equipped with suction fans, from 1 to 8 pcs, with two fan motor speeds: 400V/3~/50Hz and 230V/1~/50Hz (for diameters of 400 and 450 mm) and two noise levels (Δ/Y connection). EC fans can be selected according to different rotation speeds. Build-in thermal contacts provide reliable protection against thermal overload.

Blow-through air direction:

  • Higher DTML, higher cooling capacity
  • Large air outlet surface, more even airflow
  • Higher RH in air outlet (less product dehydration)

Each heat exchanger is tested for leaks with dry air.

Configuration examples: 

  • Blow-through
  • Ceiling mounted    
  • Large air throw, carrot and potato storage

  • Blow-through 
  • Floor mounted 
  • Distribution centres fresh produce

  • Blow-through 
  • Floor mounted 
  • Inlet hood 90° 
  • Large cold rooms high humidity

Arctigo ISBW characteristics:

  • Nominal capacity: from 1,84 to 319,24 kW
    (glikol etylenowy 35%, tj,in=-8°C, tj, out=-4°C, ta=0°C)
  • Air flow: from 3 308 to 108 419 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 cooper tubes: Ø5/8’’ or smooth stainless steel tubes
    • Block geometry: 50 mm square or 48 mm
  • Fans:
    • From 1 to 8 pcs with diameter: 450, 500, 630, 710, 800, 1000 mm
    • Power supply: 230V/1~/50Hz; 400V/3~/50Hz
    • AC or energy-saving EC fans
    • Blowing through the block
  • Maximum operation pressure : 6 bar
  • Temperature range in chamber: from -40°C to +30°C
  • DX expansion valve or pump supply

Arctigo ISBW 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
  • High energy efficiency
  • Easy installation
  • Hanging drip tray

Arctigo ISBW defrost systems:

  • Electric defrost of the drip tray (E1)
  • Electric defrost heavy (E2)
  • Electric defrost light (E4)
  • Electric defrosting of the diffuser DO (E5)
  • Hot gas defrost (HG, HGC – with connection to the block)
  • Hot water defrost (HW)

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