EC Technology and Efficient Fans
CRF/EW
Centrifugal rooftop fans with low noise level, equipped with EC Technology external rotor motor
Roof-mounted centrifugal extractor fans with low noise level and external rotor motor. fitted with a EC Technology motor and a built-in speed regulating power meter.
Fan:
• Galvanised steel sheet construction.
• Backward curved impeller made of plastic material.
• Bird protection grid.
• Folding body for ease of inspection and maintenance.
Motor:
• New EC motors with external rotor, high efficiency and adjustable by means of a 0-10 V signal. IP54 protection.
• Single-phase 230 V 50/60 Hz and three-phase 400 V 50/60 Hz.
• Working temperature: -25 ºC +50 ºC.
Finish:
• Galvanised steel sheet.
Fan:
• Galvanised steel sheet construction.
• Backward curved impeller made of plastic material.
• Bird protection grid.
• Folding body for ease of inspection and maintenance.
Motor:
• New EC motors with external rotor, high efficiency and adjustable by means of a 0-10 V signal. IP54 protection.
• Single-phase 230 V 50/60 Hz and three-phase 400 V 50/60 Hz.
• Working temperature: -25 ºC +50 ºC.
Finish:
• Galvanised steel sheet.