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Cabinet
is made of galvanized steel sheet, aluminium canopy, both coated with black epoxy lacquer.
Running wheel
is made of sheet steel.
Engine
is asynchronous with short armature, with triple windings for three speeds. The motors are equipped with a thermal fuse. Grease-filled ball bearings for life. Insulation class F. Protection class IP44.
Square box
is mounted on the fan housing, includes a start-up capacitor.
Mounting
The TH roof fans are mounted with a mounting base on horizontal roof structures or prefabricated masonry plinths. JMS and JBS plinths can also be used.
Speed control
is carried out as standard by a switch, if continuous regulation is required by changing the voltage by electronic or transformer regulators. When electronic phase-controlled regulators are used, intense parasitic noise can occur, especially at low speeds. In this case, a transformer control should be used.
Instructions
The fan is designed to exhaust air free of mechanical particles that could cause abrasion or imbalance of the impeller. Fans are particularly suitable for ventilation of sanitary facilities in apartment buildings.
