Roof Mounted Centrifugal Extractor Fans
CRF/EW/CPC
![CRF/EW/CPC](https://d7rh5s3nxmpy4.cloudfront.net/CMP2671/PR1828BI4084_1000000574_CRF_EW_CPC_SZ4.png)
Centrifugal roof fans, automatic operation, low noise level, EC Technology motor and constant pressure control
![](https://d7rh5s3nxmpy4.cloudfront.net/CMP2671/2/picto_sod_according_erp.png)
![](https://d7rh5s3nxmpy4.cloudfront.net/CMP2671/2/picto_sod_ec_technology.png)
![](https://d7rh5s3nxmpy4.cloudfront.net/CMP2671/2/picto_sod_cpc_control.png)
Centrifugal roof mounted extract fans with low noise levels and external rotor motor, fitted with an EC Technology motor.
Fan:
• Galvanised steel sheet construction.
• Backward curved impeller made of plastic material.
• Bird protection grid.
• Folding body for ease of inspection and maintenance.
Motor:
• High efficiency EC Technology motors, outer rotor adjustable via 0-10 V signal. IP54 protection.
• Single-phase 230 V 50/60 Hz and three-phase 400 V 50/60 Hz.
• Maximum temperature of air to be carried: -25 ºC +50 ºC.
EC CONTROL:
Control panel for ventilation systems with EC Technology motors with the electronics integrated in the motor itself. With the following characteristics:
• CPC: Constant pressure control.
• CFC: Constant flow control.
• DAY/NIGHT: Double pressure setpoint adjustment according to time of day.
• External sensor: Compatible with temperature, humidity, air quality or CO sensor.
• Equipment preconfigured in constant pressure mode with 100 Pa set point.
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:
• High efficiency EC Technology motors, outer rotor adjustable via 0-10 V signal. IP54 protection.
• Single-phase 230 V 50/60 Hz and three-phase 400 V 50/60 Hz.
• Maximum temperature of air to be carried: -25 ºC +50 ºC.
EC CONTROL:
Control panel for ventilation systems with EC Technology motors with the electronics integrated in the motor itself. With the following characteristics:
• CPC: Constant pressure control.
• CFC: Constant flow control.
• DAY/NIGHT: Double pressure setpoint adjustment according to time of day.
• External sensor: Compatible with temperature, humidity, air quality or CO sensor.
• Equipment preconfigured in constant pressure mode with 100 Pa set point.
Finish:
• Galvanised steel sheet.
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