The Novenco® ZerAx® series of axial flow fans uses innovative design to reduce power consumption and to better fan efficiency. The work environment benefits from the low fan sound levels. APPLICATION ZerAx fans are for comfort and industrial ventilation. Versions for standard temperature, hot smoke and ATEX zones and marine EX application are available.
RANGES
ZerAx fans for duct installation are designated AZN or AZW. Fans with integrated inlet cones for building in to air handling units are designated AZL. The Standard Range fans include AZL and AZN fans and comprise a number of fixed size-airflow-pressure combinations.
FAN SPECIFICATIONS
Casing thicknesses: 2 or 3 mm for AZL, 2 or 4 mm for AZN, and 10 mm for AZW
Hub sizes: : Ø160 or Ø350 mm for AZL, Ø160, Ø350 or Ø560 mm for AZN, and Ø350 or Ø560 mm for AZW
Impeller diameters: Ø250 to Ø500 mm for Ø160 hubs, Ø500 to Ø1250 mm for Ø350 hubs, Ø1000 to Ø2000 mm for Ø560 hubs
Blade angles: Adjustable between 25° and 80°, depends on pressure
Airflow rates: 0.1 to 125 m3 /s
Air pressures: Increases up to 3400 Pa for standard temperature and up to 3100 Pa for hot smoke fans
Fan efficiencies, without motors: Up to 92% at standard temperature and up to 89% for hot smoke fans
Reverse operation: Shorter periods up to max. allowable RPMs for normal direction. Airflow is reduced to 50% and pressure to 25% for the same system characteristics.
MOTORS
Voltages: 3x220 - 3x690 V at 50 or 60 Hz
Efficiency classes: IE1 - IE5
Speed control: Direct or frequency converter
Mounting: Enclosed in motor mount or outside the mount through a long hub
Terminal boxes: Steel or plastic mounted on fan casings
Dimension standard: IEC-72
Electrical standard: IEC-34
Enclosure: IP54, IP55, IP56, IP65 or IP66
Insulation: Class B to H
MATERIALS
Blades, guide vanes and hub: AlSi10
Inner hub: Cast steel galvanised
Fan casing and inner tube: Metallic coated steel sheet according to EN10346:2015 for light motors and hot-dip galvanised steel for heavy motors
Hub cap: Sea-water resistant aluminium
Motor mount: Hot-dip galvanised steel
CLASSIFICATIONS
Flange standards: Eurovent 1/2 for AZN and AZL; DIN 24154 R4 for AZW
Technical capacities: AMCA 211-13; DS/ISO 21940-11:2016; DS/ISO 21940- 14:2012; EN ISO 5801:2017
Environment: DS/EN ISO 12944-2:2017, corrosion category C3, optionally C4 or C5 Sound: ANSI/AMCA 300-14; AMCA 311-16
Temperature range: -20 to 50 °C
Temperature range, max.: -40 to 120 °C
Temperature range, hot smoke: F300 according to EN 12101-3 for AZL fans for at least 1 hours at 300 °C
Marine motor classification: Refer to AirBox program
ATEX and marine EX: AZN ATEX meet directive 2014/34/EU for category 2G/D; AZW EX meet guideline IACS F29/2005
Calculation software: AirBox program is certified by TÜV for the ZerAx range of fans.
ACCESSORIES
• Acoustic diffusers with or without cores
• Anti-vibration mounts
• Anti-vibration mounting plate
• Counter flange
• Damper type SBC
• Duct spigots
• Fan casing extension
• Flexible connection (PERL / Maritex)
• Frequency converter
• Hub cover
• Inlet cone with wire guard
• Inlet wire guard
• Kit for lubrication of motor
• Low temperature motor option
• Measuring pipe
• Outlet wire guard
• Painted for C4/5 environments
• Plate for vertical mounting • Roof hood type HAN
• Round-to-square diffuser
• Short, long, extra long and double length diffusers
• Silencers with or without cores
• Space heater for motor
• Support frame for horizontal mounting
• Thermal motor protection
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