Two-fold or three-fold – Radial fans for air conditioning systems, central ventilation systems (channel system), large extractor hoods, air curtains and heat pumps for air/water systems. The fan wheels are made of zinc-coated steel plate and are vibration-free, due to static and dynamic balancing of wheels. They are driven by 3-phase or speed-variable single-phase induction motors in conventional design (internal running).

Characteristics

• Available as single, two-fold or three-fold fan
• Continuously variable speed in case of single-phase motors
  (regarding three-phase induction motors, please inquire separately)
• High efficiency
• Vibration-free, silent operation
• Easy electric supply connection
• Assembly in every desired position
• Motor protection in case of blocking
• Space-saving
• Long life
• Protection IP54 with integrated thermal protection