Fans for condenser cooling in HVAC systems

Cooling of a liquid (refrigerant, heat carrier) as an intermediate process for lowering the air temperature is used in almost all refrigeration devices - from a household refrigerator to the largest climatic complexes, in home and office split systems, industrial air conditioners, certain types of dehumidifiers, etc. Their operation requires heat to be removed to the environment, which occurs in the condenser - a special heat exchanger, so named because it cools and condenses the refrigerant vapor. The compactness and efficiency of the condenser (and hence the chiller as a whole) increases with an increase in the speed of the air blowing over it. What are fans used for.

Due to the predominantly flat square design of air heat exchangers, the vast majority of condensers use large-diameter multi-blade axial impellers and low-speed (usually with adjustable speed) motors with an external rotor and a central stator, the mount of which serves simultaneously as a protective grill (may have reinforced diagonals) . Such fans are characterized

•  impeller diameter (there is a standard range from 400 to 630 mm, which does not fit only      special and heavy-duty models);
  
•  installation dimensions, which are also unified for many brands;
  
•     noise level (not particularly critical for outdoor installation of the capacitor);
  
•  productivity;
  
•  consumed electric power;
  
•  the shape of the blades, which affects the ratio of the three previous parameters;
  
•  type of power supply and compatibility with certain control devices.
  

Fancoil Motors offers fans for condenser cooling of various manufacturers, designs and capacities - both in the form of complete sets and in parts - electric motors, cables, impellers, fasteners and protective elements.

Since the installation dimensions of many heat exchangers are the same, and air velocity deviations (especially upwards) are not critical in this case, when replacing a fan, it is quite acceptable to install more modern models, often with higher performance and / or lower power with the same dimensions. More precisely, on compatibility issues, our specialists will consult for free.