La description

The Blue BN series is a wide range of heavy-duty air cooled ammonia condensers for air conditioning and refrigeration applications. Alfa Laval Blue condensers are available for both horizontal and vertical airflow, either in single (BNM) or dual (BND) coil execution. Standard configuration Coil An innovative coil design provides excellent heat transfer at minimal refrigerant charge. Blue BN ammonia condensers are fitted with smooth stainless steel tubing. Available with two Alu-fin types: - Turbo fins for maximized capacity - Industrial power fins (IF) for long lasting performance Available in different fin thicknesses and fin spacings. Available both in single (M) or dual (D) fan row: separate connections in the D series provide the opportunity for independent operation of both condenser coils. Casing Frame construction provides high rigidity for protection against vibration and thermal expansion. Casing and framework of corrosion resistant pre-galvanized sheet steel, epoxy coated white RAL 9002 on both sides. Separated fan sections. Fan motors High efficiency AC or EC fan motors, available in different fan diameters (800, 910 & 1000 mm) and noise levels, power supply 400/50/3. Motors with external rotor, protection class IP 54 according to DIN 40050. Integrated thermo contacts provide reliable protection against thermal overload. Options For a full overview of all available options and additional technical specifications please refer to the product leaflet. Specifications
  • Refrigerant: ammonia
  • Capacities 20 up to 1200 kW (Tair = 25°C, Tcond = 40°C, Tsubcool < 3K, Tsuperheating = 25K)
Selection tools AlfaSelect Air These air heat exchanger products can be configured and selected using the AlfaSelect Air selection tool. > AlfaSelect Air Cold Room Calculator Mobile app for iOS & Android to calculate the expected heat load for your cold room. Cold Room Calculator Additional product information Find manuals, electrical drawings, CAD drawings, High Resolution pictures and certificates. Technical documentation How it works Alfa Laval 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 Laval 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 airconditioning systems. On the refrigerant side the most common media are a brine or an evaporating refrigerant like HFOs, HFCs, 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). ''