Revolution SLC

Casing

The all-metal fan casing provides a long lasting and robust construction. The units have been constructed from a single sheet of steel, with both motor and axial impeller mounted within the length of the unit casing. All casing parts are heavy gauge mild steel sheet or pre-galvanised sheet steel, roll formed and welded for added strength and durability, hot dip galvanised to BS EN ISO 1461 after fabrication and drilled to BS EN ISO 13351. The fans are suitable for external mounting as standard.

Motors

AC Motors are to be foot mounted totally enclosed metric type to IP55, with sealed for life bearings, standard industrial paint finish and Class F insulation to EN 60034-5, suitable for operating temperatures up to +54°C. Motors are to be wired via a weatherproofed cable to an IP55 protected terminal box mounted on the outside of the unit casing. EC single or three phase permanent magnet IE6 totally enclosed to IP55 with centralised control circuit for speed adjustment and electronic protection against overload, over temperature and locked-rotor suitable for 50 and 60Hz supply.

Impellers

Adjustable pitch increased twist aerofoil impellers are provided with blades made from high quality pressure die cast aluminium (LM6), natural finish. Impellers are factory set at an angle to provide maximum performance. The hubs are manufactured from die cast aluminium alloy (LM24). Assembled impellers are to be statically balanced to ISO 14694.

Control

Speed control shall be via stepped Transformer or Eltadrive VSD, dependant on model. Eltadrive Switched IP66 Outdoor Use shall provide precise motor control and energy savings. The Eltadrive range of inverters have been designed encompassing the latest technology and combining robustness with reliability. Using an inverter to control fans via sensors to reduce fan speed can provide significant cost-savings through lower energy consumption.

Quality Management

Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001. All Revolution SLC units are to be tested to ISO 5801 (airside performance) and BS ISO 13347-1 (sound performance).