Duet Twin Fans - Run & Standby Fans

• Designed to meet Local Authority run and standby specifications
• Quiet operation
• Meets current Building Regulations Approved Document F
• Run and standby facility
• Self diagnostic check of controls
• Overrun timer as standard
• Remote PIR’s or humidistat can be installed

This product range is now obsolete and no longer available from Vent-Axia. The information here is provided for reference only.

Duet is a range of run and standby fans designed to provide extraction levels that comply with Building regulations Document Ffor bathrooms and WC's and incorporates a run on timer. All models offer automatic changeover on fan failure. Ultra quiet and particularly suitable for areas where unobtrusive sound levels are essential, Duet is available for surface, recessed or duct mounting. Duet meets the requirement of Health Technical Memorandum 2025, foul extract ventilation systems 2.8. Ideal for new build and refurbishment installations.

Duet features include LED indicators showing the status of the unit, self diagnostic check of controls before the fan will start, run and standby facility, 5-25 minute run on timer and 24 hour auto fan changeover. Suitable for ambient temperatures of up to +40°C.

Double insulated appliance.
Supply voltage 220-240V/1/50Hz.

Duet is suitable for use with 100mm diameter ducting or flat ducting, for installations that need concealed ducting, with a minimal ceiling void of only 90mm required.

Motor
The motors are manufactured with long life self aligning sleeve bearings, impedance protected. Insulation is to Class H.

The housing and fan scroll are manufactured from high quality polymeric materials. The control circuitry is mounted within its own enclosure.

PRODUCT SPECIFICATION:

Built In Controls
Adjustable Timer from 5-25 minutes, to comply with Building Regulations , Document F. 24 hour automatic duty share changeover. Any external electro-mechanical switch can be used eg. ThermoSwitch, HumidiSwitch. Double insulated appliance.
Supply voltage 220-240V/1/50Hz
Controller
Optional Remote indicator
The remote fan indicator unit provides fan status information at a convenient position remote from the main unit. Stock Ref. No.18 00 10C
Single fan only performance
Manufacturers of some fluorescent/low energy lighting systems indicate that these can interfere with other electronic/timing circuits. For reliable operation of these circuits we recommend therefore that a tungsten filament light is used.

PERFORMANCE:

Performance

DIMENSIONS:

  A B C D F G
Surface 347 170 224 69 99 35
Recessed 385 233 366 255 98 230 35
Duct 366 233 230 36 98    
Image of Duet Surface
Duet Surface

Requires 100mm circular hole in wall. Fan 1/ Fan 2 running indicators, fault indicator.

Please call 0344 856 0590 for further availability information.
Image of Duet Recessed
Duet Recessed

Flush-mounted model with 100mm discharge spigot. Two flush-mounted washable filter panels, Fan 1/Fan 2 running indicators, fault indicator.

Please call 0344 856 0590 for further availability information.
Image of Duet Duct
Duet Duct

Sheet metal construction. Up to 2 inlets can be connected. 100mm discharge spigots.

Please call 0344 856 0590 for further availability information.
Image of 100mm Wall Fitting Kits (White)
100mm Wall Fitting Kits (White)

100mm Wall Fitting Kits (White) For installing into most walls using the telescopic liners supplied.

Please call 0344 856 0590 for further availability information.
Image of 100mm Wall Fitting Kits (Brown)
100mm Wall Fitting Kits (Brown)
100mm Wall Fitting Kits in Brown
Please call 0344 856 0590 for further availability information.
Image of Air Replacement Grille Set (Ivory)
Air Replacement Grille Set (Ivory)
Suitable for fitting to doors and panels to allow better internal air circulation and replacement. Consists of a two-piece telescopic set, which fits unobtrusively on either side of the door panel. Minimum fixing thickness 30mm. Plastic. Dimensions: 454 x 90mm.
Please call 0344 856 0590 for further availability information.
Image of Air Replacement Grille Set (Brown)
Air Replacement Grille Set (Brown)
Suitable for fitting to doors and panels to allow better internal air circulation and replacement. Consists of a two-piece telescopic set, which fits unobtrusively on either side of the door panel. Minimum fixing thickness 30mm. Plastic. Dimensions: 454 x 90mm.
Please call 0344 856 0590 for further availability information.
Image of Quick fix 100mm Wall Grille (White)
Quick fix 100mm Wall Grille (White)
Quick fix 100mm Wall Grille (White)
Please call 0344 856 0590 for further availability information.
Image of Quick fix 100mm Wall Grille (Brown)
Quick fix 100mm Wall Grille (Brown)
Quick fix 100mm Wall Grille (Brown)
Please call 0344 856 0590 for further availability information.
Image of Vent-cowl for connection to 110mm rigid pipe
Vent-cowl for connection to 110mm rigid pipe
External termination for 110mm diameter rigid ducting through roofs and walls in exposed situations. Overall diameter 200mm. Not suitable for use with flexible ducting. Features & Benefits: Material: grey PVCu. Downloads Catalogue Pages
Please call 0344 856 0590 for further availability information.
Image of 100mm Flexible Ducting (6 metre)
100mm Flexible Ducting (6 metre)
Please call 0344 856 0590 for further availability information.
Image of Condensation trap for 110mm rigid duct
Condensation trap for 110mm rigid duct
110mm Condensation trap, for fitting in vertical rigid PVCu pipe ducting. Must be used where pipe ducts pass through unheated roof voids. Fitted with 20mm pipe connection for running off condensate. Not suitable for use with flexible ducting.
Please call 0344 856 0590 for further availability information.

Overview

Duet is a range of run and standby fans designed to provide extraction levels that comply with Building regulations Document Ffor bathrooms and WC's and incorporates a run on timer. All models offer automatic changeover on fan failure. Ultra quiet and particularly suitable for areas where unobtrusive sound levels are essential, Duet is available for surface, recessed or duct mounting. Duet meets the requirement of Health Technical Memorandum 2025, foul extract ventilation systems 2.8. Ideal for new build and refurbishment installations.

Duet features include LED indicators showing the status of the unit, self diagnostic check of controls before the fan will start, run and standby facility, 5-25 minute run on timer and 24 hour auto fan changeover. Suitable for ambient temperatures of up to +40°C.

Double insulated appliance.
Supply voltage 220-240V/1/50Hz.

Duet is suitable for use with 100mm diameter ducting or flat ducting, for installations that need concealed ducting, with a minimal ceiling void of only 90mm required.

Motor
The motors are manufactured with long life self aligning sleeve bearings, impedance protected. Insulation is to Class H.

The housing and fan scroll are manufactured from high quality polymeric materials. The control circuitry is mounted within its own enclosure.

Technical

PRODUCT SPECIFICATION:

Built In Controls
Adjustable Timer from 5-25 minutes, to comply with Building Regulations , Document F. 24 hour automatic duty share changeover. Any external electro-mechanical switch can be used eg. ThermoSwitch, HumidiSwitch. Double insulated appliance.
Supply voltage 220-240V/1/50Hz
Controller
Optional Remote indicator
The remote fan indicator unit provides fan status information at a convenient position remote from the main unit. Stock Ref. No.18 00 10C
Single fan only performance
Manufacturers of some fluorescent/low energy lighting systems indicate that these can interfere with other electronic/timing circuits. For reliable operation of these circuits we recommend therefore that a tungsten filament light is used.

PERFORMANCE:

Performance

DIMENSIONS:

  A B C D F G
Surface 347 170 224 69 99 35
Recessed 385 233 366 255 98 230 35
Duct 366 233 230 36 98    

Models

Image of Duet Surface
Duet Surface

Requires 100mm circular hole in wall. Fan 1/ Fan 2 running indicators, fault indicator.

Please call 0344 856 0590 for further availability information.
Image of Duet Recessed
Duet Recessed

Flush-mounted model with 100mm discharge spigot. Two flush-mounted washable filter panels, Fan 1/Fan 2 running indicators, fault indicator.

Please call 0344 856 0590 for further availability information.
Image of Duet Duct
Duet Duct

Sheet metal construction. Up to 2 inlets can be connected. 100mm discharge spigots.

Please call 0344 856 0590 for further availability information.

Accessories

Image of 100mm Wall Fitting Kits (White)
100mm Wall Fitting Kits (White)

100mm Wall Fitting Kits (White) For installing into most walls using the telescopic liners supplied.

Please call 0344 856 0590 for further availability information.
Image of 100mm Wall Fitting Kits (Brown)
100mm Wall Fitting Kits (Brown)
100mm Wall Fitting Kits in Brown
Please call 0344 856 0590 for further availability information.
Image of Air Replacement Grille Set (Ivory)
Air Replacement Grille Set (Ivory)
Suitable for fitting to doors and panels to allow better internal air circulation and replacement. Consists of a two-piece telescopic set, which fits unobtrusively on either side of the door panel. Minimum fixing thickness 30mm. Plastic. Dimensions: 454 x 90mm.
Please call 0344 856 0590 for further availability information.
Image of Air Replacement Grille Set (Brown)
Air Replacement Grille Set (Brown)
Suitable for fitting to doors and panels to allow better internal air circulation and replacement. Consists of a two-piece telescopic set, which fits unobtrusively on either side of the door panel. Minimum fixing thickness 30mm. Plastic. Dimensions: 454 x 90mm.
Please call 0344 856 0590 for further availability information.
Image of Quick fix 100mm Wall Grille (White)
Quick fix 100mm Wall Grille (White)
Quick fix 100mm Wall Grille (White)
Please call 0344 856 0590 for further availability information.
Image of Quick fix 100mm Wall Grille (Brown)
Quick fix 100mm Wall Grille (Brown)
Quick fix 100mm Wall Grille (Brown)
Please call 0344 856 0590 for further availability information.
Image of Vent-cowl for connection to 110mm rigid pipe
Vent-cowl for connection to 110mm rigid pipe
External termination for 110mm diameter rigid ducting through roofs and walls in exposed situations. Overall diameter 200mm. Not suitable for use with flexible ducting. Features & Benefits: Material: grey PVCu. Downloads Catalogue Pages
Please call 0344 856 0590 for further availability information.
Image of 100mm Flexible Ducting (6 metre)
100mm Flexible Ducting (6 metre)
Please call 0344 856 0590 for further availability information.
Image of Condensation trap for 110mm rigid duct
Condensation trap for 110mm rigid duct
110mm Condensation trap, for fitting in vertical rigid PVCu pipe ducting. Must be used where pipe ducts pass through unheated roof voids. Fitted with 20mm pipe connection for running off condensate. Not suitable for use with flexible ducting.
Please call 0344 856 0590 for further availability information.

Downloads