The Alfa-V VDD series is a wide range of heavy duty V-type dry coolers for air conditioning, refrigeration and various industrial applications such as water/glycol cooling or free cooling. For industrial applications, dry coolers are suitable for closed circuit cooling of various process liquids in f.i. food, power, process and general industries. Alfa-V VDD dry coolers provide high capacities at a modest power consumption and a compact footprint.
An innovative coil design provides excellent heat transfer. In standard execution dry coolers are fitted with smooth copper tubing ø 12 and 16 mm (VDD) or stainless steel tubing 16 mm (VDDY). Fins in aluminium or sea water resistant AlMg, plain fin design for easy cleaning and long-lasting performance. Separate connections provide the opportunity for independent operation of both cooling coils.
Frame construction provides high rigidity for protection against vibration and thermal expansion. Casing, supports and frame made of corrosion resistant galvanized steel (class C4-H). Separated fan sections and removable fan rings.
- Fan motors
ErP compliant fan AC & EC motors, available in three fan diameters (800, 910 & 1000 mm) and five noise levels. Motors with external rotor, protection class IP 54 according to DIN 40050.
AC power supplies 400/50/3, 400/60/3 and 460/60/3 with integrated thermo contacts to provide reliable protection against thermal overload. EC power supply 380-480/50-60/3.
For a full overview of all available options and additional technical specifications please refer to the product leaflet.
- All liquids that do not corrode copper
- Capacities: 100 up to 1800 kW (water, EN1048)
Find everything you need for your HVAC application in Alfa Laval's HVAC handbook.
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-cooled liquid coolers (radiators/dry coolers)
Air heat exchangers may be used to cool various process liquids. For this application hot process liquid flows through the tubes. This liquid is cooled by the relatively cold ambient air that is forced through the coil.
Air heat exchangers for process liquid cooling are referred to as 'radiators'. Air-cooled liquid coolers for HVAC applications and total energy systems are referred to as 'dry coolers'.