The housing is made of sheet steel. The access door is equipped with 30 mm acoustic insulation.
Impeller
Radial impeller with backward curved blades.
Motor
The standard AC motor is equipped with built-in thermal contacts with manual restart.
Terminal block
The terminal block is located on the fan housing.
Installation
Mounting is possible in any fan position. Mounting brackets are also part of the delivery.
Speed control
Speed control is performed manually using a frequency converter with a sine filter, a thyristor or a five-stage transformer. The fans can be controlled by a signal from a temperature, humidity, CO2, motion sensor or as a VAV system.