Cabinet
The cabinet is made of high quality tough plastic (TD-350 to TD-1000) or epoxy coated galvanized steel sheet (TD-1300, TD-2000). Sizes TD-350 to TD-1000 include a patented vector noise absorber, sizes TD-1300 and TD-2000 have fiberglass noise insulation. The design allows for easy removal of the motor section.
Motor
EC motor with thermal and electronic overload protection. Ball bearings. Insulation class B, IP44 protection. Operating temperature -20 °C to +40 °C.
Clamps
The terminal block is located on the fan housing, it is rotatable 360° for cable connection from any direction (only for TD-350 to TD-1000). For sizes TD-1300 and TD-2000 the terminal block is removable, protection IP55.
Speed control
Motors are regulated by a potentiometer located in the terminal block or by an external REB-Ecowatt speed controller. The speed can also be controlled linearly by a 0-10 VDC signal from a temperature, humidity or CO2 sensor.
Mounting
Mounting is possible in any fan position. The enclosure must not transmit mechanical stresses from the ductwork. A flexible connection to the ductwork must be used.
Instructions
Due to their very low profile, high efficiency and low noise, the fans are suitable for demanding applications where their very economical operation is also applicable. They are also suitable for DCV (demand controlled ventilation) applications.