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Cabinet
is made of galvanized steel sheet. It is coated with black epoxy paint. All models are equipped with a protective net against small birds.
Running wheel
is radial with backward curved blades. It is made of galvanized steel sheet, is statically and dynamically balanced.
Motor
DC, specially developed EC motor with external rotor for 230 V/50 Hz power supply. The motors are equipped with a thermal fuse as standard. Motor insulation is class F. Permanent operating temperature -20 to +40 ˚C. Ball bearings with grease packing for life. Protection rating IP44.
Clamps
With revision switch is located on the fan housing. The internal terminal block has connection terminals for speed control, sensor controlled control for setting and reading of operating values via a serial interface. The protection rating is IP55.
Speed control
The digital control unit provides 4 basic modes switchable by the Prosys Ecowatt controller. The first mode maintains a constant line pressure based on an integrated sensor. The other modes allow continuous control to constant air flow (except CTB/4-400/160 Ecowatt Plus type), proportional mode or ventilation mode with 2 switchable min/max operating characteristics. The control unit allows the connection of signals from external devices (CO2, temperature and relative humidity sensors) or an external pressure sensor with transducer and 0-10 V or 4-20 mA output. The control allows control via Modbus-RTU. The Prosys Ecowatt controller can control up to 32 fans with different settings in one network (controller not included).
Noise
emitted by the fan is listed in the tables.
Mounting
fan only horizontally (with motor axis vertical) directly to the circular duct using a neck with a single-rubber seal.
Operating
Expert installation and commissioning assistance is available for this product.
Caution
Inquire about the permitted combinations of electrical accessories.
