Dave extract and supply fans are a compact range of high performance fans in 7 case sizes. Fans can be mounted in any position.

All extract fans can be installed internally or externally without the requirement for additional weather protection. Duty range up to 1.1m3/s

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DAVE, Nuaire's single supply and extract unit, all models feature the Nuaire patented 'floating fan' design negating the requirement for further AV mounts.

Features & Benefits:

  • One solution - A robust casing design ensures that all units are suitable for internal or external mounting as standard. (Extract only)
  • Flexible - Extract Fans can be installed in any orientation as standard.
  • Latest EC Technology - Performance optimised backward curved impellers and IP54 EC motors provide low specific fan powers and stepless speed control without tonal noise generation.
  • Quick installation - Fans are supplied with a set of support brackets for easy installation or inclusion into an existing drop rod system.
  • Energy efficient ‘Plug and Play’ control -Ecosmart energy efficient demand control with pre-programmed soft start function helps prevent electrical overloading and minimises mechanical wear. Weatherproof control cover included (if required).
  • Multi access - Compact range ideal for space restricted applications such as ceiling voids. Units have top or bottom access as standard allowing for quick install and easy access to fans for maintenance.
  • Patented Floating Fan - Units are constructed using the Nuaire ‘Patented’ floating fan technology which incorporates an inner casing held inside an outer casing by AV mounts, ensuring any vibration is isolated. This construction removes requirement for additional AV mounts.
  • Attenuation Pods - All DAVE models plus fans are fitted with attenuated pods to ensure low breakout noise levels.
  • Coils -  (DAVE Supply). LPHW coils are supplied with 2 port Pressure Independent valves (PICV).  Electric heaters are supplied with thyristor control. A No heater option is also available.
  • Aluzinc Casing - Corrosion rate of Aluzinc is 3-7 times lower than that of hot-dip galvanized steel.
  • 5 year warranty – on Ecosmart models for peace of mind. 

The Units shall be configured and arranged as detailed on the drawings and in accordance with the schedule of equipment.  

Units have a patented ‘Floating Fan’ technology incorporating an inner casing which is held inside an outer casing by AV mounts, ensuring any vibration is isolated. This technology eliminates the requirement for additional AV mounts.

The Extended length case Type ‘A’ shall be acoustically lined and manufactured from heavy gauge, corrosion resistant aluzinc and tested to leakage class ‘L2’.The unit will be manufactured to provide a low height solution to enable it to be located in low depth ceiling and floor voids. The units shall have a maximum depth of 233/300/345/370/410/455/500mm (models DS1-7). For ease of installation the unit shall be supplied complete with 4 mounting brackets for inclusion into a drop rod mounting system.

Impellers shall be of high efficiency, performance and sound optimised backward curved design. Low energy, high efficiency IP54 EC motorised fans providing low specific fan powers and stepless speed control without tonal noise generation. Fan/motor assemblies have sealed for life bearings with an anticipated working life of 70,000 hours (L10) and shall be suitable for single phase supply. Units are suitable for operation in ambient temperatures of up to 60ºC (unit sizes 1 - 5) and up to 40ºC (unit sizes 6 - 7). 

  • Small and large offices
  • Student accommodation
  • Hotels
  • Hospital
  • Supermarkets


  • Fast Clamps (Example: FC-150)
  • Circular Flexible Connector (Example: CFC16)
  • Silencer internal (SIL-150)
  • Silencer external (CA25L)
  • Anti-vibration mounts (NAV 2)


  • ES-PIR2
  • ES- LCD (Touch screen)
  • ES- AVI2 (Audio visual indicator)
  • ES- CO2RM/ES- CO2RMPP (Room mounted)
  • ES- HTCSIG (Signal conditioning circuit)


  • ES- TEMP2
  • ES- RH2
  • ES- UCF (Manual control)
  • ES- CO2 (Duct mounted)
  • ES- CI (Control interface)
  • ES- JB (Junction box)
  • ES- CO2RM/ES- CO2RMPP (Room mounted)