The Heritage Series of roof units has been designed to permit easy access for cleaning. They can handle clean air, grease laden air or toxic gases.

Construction
Cowls are of galvanised steel with a powder-coated finish.
Stainless steel construction is an optional extra.

Motors
Type - standard squirrel cage motors
Electricity supply - single or three-phase to suit a wide range of voltages and frequencies.
Bearings - sealed-for-life, ball.
Speed-controllable using inverters.
Explosion-proof motors for three-phase supply can be fitted to all selections.

Internal Thermal Protection
Thermistors can be supplied on request.

Testing
Air flow data based on tests to BS848:Part 1, 1980.
Noise data based on tests to BS848:Part 2, 1985.

Special Features
The motor is mounted out of the airstream.
This design is suitable for a wide range of applications, extending from the handling of toxic or explosive gases to elevated temperature applications. Appropriate motors are fitted for each application.
The windband is held in place with toggle clamps to permit easy access for cleaning and maintenance.
Can be mounted at angles up to 15°.