GL Gamma BFC
Bushfire Compliant Roof Mounted Exhaust Fans
Excl. VAT
- Quick release toggle clamps provide easy access for cleaning and maintenance.
- Designed for vertical discharge applications.
- High quality bronze mesh provides ember protection.
- Speed-controllable with electronic or auto-transformer controllers (not on CE316VGL-BFC).
- Compact, low profile design.
- Choice of speeds available.
- High performance backward-curved centrifugal fan.
- Many 3-phase motors are 2-speed star/delta design.
- Can be mounted at angles up to 30°.
- Backdraft dampers are an optional extra.
- Compliant to AS3959:2009 up to and including BAL-40.
SKU: EFAP-21
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Overview
The GL Gamma Series, with bushfire code compliance, has been developed for bushfire prone regions. They feature a high performance backward-curved centrifugal fan and a robust galvanised steel construction. There are 8 sizes in the range extending from 315 to 710mm diameter.
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Features and Benefits
Design
The GL Gamma Series has been designed with a compact, low profile design. The robust unit is perfect for vertical discharge applications. Quick release toggle clamps provide easy access for cleaning and maintenance. They can be mounted at angles up to 30°.
Kitchen Hood Exhaust Systems
AS/NZS1668.1:1998, Clause 11.2.5 states that, for commercial installations: “Kitchen exhaust fan casings and cowls shall be manufactured from non-combustible materials that have a fusing temperature above 1000°C.
Bushfire Prone Areas
Construction of buildings in bushfire prone areas AS3959:2009, clause 6.6.5(b) “Roof penetrations” states: Openings in vented roof lights, roof ventilators or vent pipes shall be fitted with ember guards made from a mesh or perforated sheet with a maximum aperture of 2mm, made of corrosion resistant steel, bronze or aluminium.
Backdraft Dampers
Backdraft shutters are an optional extra. The pressure loss across the shutter has to be added to the system pressure before making fan selections.
Protection
All motors are fitted with Internal Thermal Contacts as standard.
Testing
All units tested to ISO5801:1997 (airside performance) and BS848:Part 2, 1985 (sound performance).
Specification
Construction
Cowls are made from galvanised steel. The units feature debris and ember protection bronze mesh with a maximum of 2mm aperture. Powder coating is an optional extra.
Impellers
Backward-curved centrifugal impellers.
Motor
The fans are built with external rotor, squirrel cage induction motors with sealed for life ball bearings. The motor requires an electricity supply of 230V, single or 415V three-phase, 50Hz. Many 3-phase motors are 2-speed star/delta design.
Control
Speed-controllable using electronic or auto-transformer speed controllers (not CE316VGL-BFC).
Backdraft dampers
Backdraft shutters are an optional extra The pressure loss across the shutter has to be added to the system pressure before making fan selections.
