Arctigo ISD

Arctigo ISD (2022 version)

Arctigo ISD is a wide and flexible range of single discharge industrial air coolers for both cooling and freezing applications in medium to large cold rooms. This industrial air cooler line has been designed using the Helpman® heritage, to keep fresh and frozen goods refrigerated from +10 to -40 °C, with either high or low humidity content.
The Arctigo range offers a wide variety of cooler configurations and a long list of options, always allowing to select the best model to suit all applications in industrial refrigeration installations. Arctigo air cooler models are available for dedicated applications such as agricultural storage, airsock application or shock cooling.

Main characteristics Arctigo ISD

Standard configuration

  • Finned coil
    • 10 coil block modules
    • 3, 4, 6, 8 or 10 tube rows deep
    • Tubing ø 5/8” ripple Cu or smooth Cu tubing for brine or smooth stainless steel; ø 3/8” Cu for CO2
    • Tube pitch 50 mm square
    • Corrugated Alu-fins
    • Fin spacings 4, 5, 6, 7, 8, 10 and 12 mm

  • 1 to 6 fans, ø 400 mm up to ø 910 mm, drawing trough the coil.
    Power supply 400/50-60/3 or 230/50-60/1 (for ø 400 and 450 mm), two noise levels (Δ/Y connections). AC/EC fan motors with dynamically and statically balanced external rotors, manufactured in accordance with VDE 0530/12.84 IP54 class F.
    Integrated thermo contacts (Clickson) provide reliable protection against thermal overload.

  • Corrosion resistant materials: coil frame and casing pre-galvanized sheet steel, epoxy coated RAL 9003. All fixing materials stainless steel.

  • Hinged side panels and driptray, drain(s) 1½" BSP ext.

  • Fitted with schräder valve on the suction connection for testing purposes.

  • Refrigerant connections right or left (L=default).

  • Sufficient room for fitting the expansion valve inside.

  • Suitable for dry expansion or pumped system.


For a full overview of all available options and additional technical specifications please refer to the product leaflet. Arctigo ISD

How it works

Alfa LU-VE finned coil air heat exchangers have been designed to achieve an optimized exchange of thermal energy between air and a refrigerant or fluid. The ‘heart’ of our air heat exchangers is the finned coil, built up from a circuit of interconnected tube serpentines and fins to increase the heat exchanging surface. Thanks to the combination of key design variables (coil materials, coil geometry, casing design, fan type), air units are very versatile heat exchangers with a great variety of applications in many industries. Alfa LU-VE supplies finned coil air heat exchanger products for a wide variety of applications.

Air coolers & air-cooled condensers

Air coolers and air-cooled condensers are key components in air cooling and air conditioning systems. On the refrigerant side the most common media are a brine or an evaporating refrigerant like HFO/HFC, ammonia or CO2. A chilled brine may be supplied from a chiller that is potentially located far away, but a liquified refrigerant must come from a nearby condensing unit. When an evaporating refrigerant is used, the cooling coil is the evaporator in the vapour-compression refrigeration cycle (‘direct expansion’ or ‘DX’ system).

*not covered by Eurovent certification

  • Refrigerants: HFC, ammonia*, brine*, CO2
  • Capacities (SC2): 3 up to 240 kW
  • Air flow: 3,000 up to 130,000 m3/h
Selection tools
These air heat exchanger products can be configured and selected using our online selection tool Plair.
Mobile app for iOS & Android to calculate the expected heat load for your cold room.
  • Application based air cooler design to secure product quality.
  • Heavy duty coil & casing materials, resulting in a long operational product life.
  • Exceptionally wide & versatile cooler range.
  • Eurovent certified performance (for models included in the scope).
  • Easy installation.
  • Energy efficiency.
  • Low defrost frequency thanks to square tube pitch configuration.