CRKA

ROOF FAN WITH FOLDING SYSTEM AND ALUMINIUM COWL

MANUFACTURING FEATURES:

• Protection cowl made of anticorrosive treated aluminum easily removable for motor and impeller maintenance thanks to the integrated folding system.
• The design of the cowl with a rounded shape is specific to minimize the risk of water ingress due to rain.
• Equipped with a hinged system to open the motor-impeller set. This system allows easy maintenance and cleaning of the set without the need to disassemble the entire structure. The opening is possible in 2 inclinations: approximately 45º and 90º, as required by the intervention.
• Structure in anticorrosive galvanized steel and support frame for adaptation to the roof with anti-bird protection grid.
• High-performance, backward-curved blade (reaction) impellers designed to work without scroll. Self-cleaning system, built in galvanized steel treated with anti-corrosion.
• Standard asynchronous squirrel cage motor with IP-55 protection and Class F insulation. Standard voltages of 230V50Hz for single phase motors, 230/400V50Hz & 400/690V 50Hz for three-phase 1 speed motors and 400V50Hz for 2 speed motors.

APPLICATIONS

Designed for deck or roof mounting, they are indicated for:

• Smoke extraction.
• Air renewal in all types of buildings and industries.
• Maximum continuous working temperature: transported air 80ºC, ambient 60ºC to -25ºC in three-phase motors.

UNDER REQUEST

• Special voltages.
• Special contruction for moving air at 120ºC