FlowLine Fan Powered

Product Highlights

  • Angled and rounded models - choice of hood type to meet
    aesthetic requirements.
  • Low profile - to meet architectural requirements of streamlined
    design on modern buildings
  • Intake or discharge - fa� units can be wired to act as supply or exhaust units
  • Weatherproof - designed to exclude wind and driving rain even in extreme conditions
  • Easily installed - rapidly fitted into all roofing types. Flowline fans can also be used as wall units
  • Minimum maintenance - protective metal and fittings maximises corrosion resistance. Reliable powered fan unit is under warranty for a full 12 months after installation
  • Size variations - several fan diameters available in varying speeds meet a range of air flow requirements Bird / Insect screens - fitted to all fan units to eliminate the possible entry of birds and insects

 

Fresh Air Inlet
All fan extract systems require an adequate fresh air inlet for satisfactory performance. Fresh air inlets should be located as close to floor level as possible and have a free inlet area of a minimum of four times each square metre of area derived from the fan diameter. Ellflow manufacture a full range of fresh air inlet louvres for this purpose.

 

Worked example
Refer also to the Ellflow Technical Design Guide.
1. Required exhaust air flow rate from a building has been determined to be l^mVs.
2. Fan ventilator will exhaust air from a ducted installation having a total pressure drop of 50N/m2.
3. Using the performance capacity table, at a system pressure drop of SON/rri3, the required exhaust rate of 1.64m7s is met by a fan diameter of �lO mm at a fan speed of 700RPM.
4. Therefore, an Ellflow Flowline Model FLV610 fan ventilator should be specified with an angled or rounded hood selected.
5. A suitable Ellflow fresh air inlet louvre should be selected. To determine the correct size refer to the appropriate Ellflow Louvre Performance Chart and follow the example shown on that sheet.

 

Recommended specification
Fan ventilators shall be of the Ellflow Flowline (Angled, Rounded) [select one] Model ( ) [specify model number] type and shall be of the size specified on the drawing.
Fan ventilators shall be weatherproof under all normal operating conditions.
Each fan ventilator shall incorporate a high performance fan operating at a speed of ( ) RPM, wired at (230, 400) [select one] volts, with an air (supply, exhaust) [select one] capacity of ( )m /s at a system pressure drop of ( )N/n-�.
Fan ventilators shall be constructed of (Zincalume, Galvanised Steel, Colour Steel) [select one and specify colour where necessary].

Flowline Performance Data =>