Roof Mounted Fan Integrated Control Fan
CTB ECOWATT PLUS Series

Range of centrifugal roof-mounted fans in horizontal discharge format which are mounted directly above a circular duct for the ventilation of housings and small enclosures.
Centrifugal backward-curved impeller in galvanised sheet steel. Galvanised steel sheet housing protected by black epoxy polyester paint. All models are fitted with a bird-proof guard.
Duct connection flange with integrated rubber air seal, EC external rotor motor, thermal protector, and ON-OFF switch IP55.

Integrated control
- Programming device, to adjust settings, available as an accessory.
- Possibility to connect up to 32 fans with each other to design a fan network which can be adjusted and controlled with only one remote control.
- 2 analogue inputs, 0-10V or 4-20mA.
- 1 digital input (Night position).
- Mini-maxi operating mode.
- Main supply: 1-230V±15% 50/60Hz.
- This series is able to be controlled and displayed via Modbus-RTU network.

Constant pressure operating mode
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.
- Night position adjustable between 25-100% of the pressure in high speed.

Constant volume operating mode
- This mode is not possible with CTB-400/160 ECOWATT PLUS.
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.
- Night position adjustable between 50-100% of the volume in high speed.

Proportional operating mode
- 2 analogue inputs 0-10V or 4-20mA.
- The control operates in function of the maximum demand parameter.
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.
- Alarm relay output.

Min-max operating mode
- Function of the contact position connected to digital input, the fan runs at high speed or at low speed.
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.