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Airflow DV72-R Heat Recovery Unit

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Airflow DV72-R Heat Recovery Unit

Regular Price: £693.00

Special Price Excluding VAT £575.00 including VAT £690.00

Airflow DV72-R Heat Recovery Unit - 9041322
Description

Details

Special - Beat The Price Increase Now

Airflow DV72-R Heat Recovery Unit - 9041322

New improved very popular and cost efficient Heat recovery unit from Airflow with thermal Summer By-pass and hard wired commissioning switch

Ideal for developers and home builders requiring a quality unit at economical cost 

  • Up to 91% Heat recovery
  • 235 m3/h @100pa suitable for houses with Max floor area of 150m2
  • Specific fan power as low as 0.60 wls
  • EC motors
  • Thermal Summer Bypass  
  • 100% Adjustable air flow rates via commissioning control
  • 2 x G3 Filters
  • Frost protection
  • Multiple control options
  • SAP Appendix Q listed
  • 1 year warranty
  • Developed and manufactured in th UK

Benefits of working with BPC Ventilation

  • In-House design service
  • Largest range of heat recovery systems
  • Technical support including live chat
  • Specialists in easy to install DIY systems
  • All products in stock in our own warehouse
  • Large showroom with working units on display
  • Free delivery to any UK Mainland or Location
  • Delivery also available to any worldwide location
  • Installer network throughout the UK and Ireland
  • Authorised suppliers and distributions for all products
  • All systems comply to all the latest building control regulations
Technical Specification

Technical Specification tab

    Airflow DV72-R Heat Recovery Unit - 9041322
  • Up to 91% Heat recovery
  • Counterflow heat exchanger (PVC)
  • Max Air flow 280m3/h
  • 235 m3/h @100pa
  • suitable for houses with Max floor area of  150m2
  • Specific fan power as low as 0.60 wls
  • Sound level 28 to 45 @3m db(a)
  • Dimensions WxHxD (mm) 560x 635 x260
  • Duct Diameter 4 x125mm
  • weight 14kg
  • Wall  mounted
  • Filtration 2xG3
  • Frost protection  
  • Thermal Summer Bypass  
  • 100% Adjustable air flow rates via commissioning control
  • Multiple control options
  • SAP Appendix Q listed
  • 1 year warranty
  • Developed and manufactured in th UK
Download Documentation
Airflow DV72 Catalogue
Airflow DV72 Installation Instructions
Further Information

How to install a Airflow DV72 MVHR Kit using a radial ductwork system


This system can extract from up to 3 bathrooms and kitchen and simultaneously supply air to bedrooms and living areas


Initial Design -


Pre designed plan - Please follow the plan ensuring the correct number of pipes to each area - Please note the plan is only a guide and you may have to reroute pipe work differently and reposition valves to suit layout of rooms


No Plan - If a design is not possible due to renovation, Retrofit or properties with multiple obstacles simply follow the listed recommendations


We would recommend that you



  • Install 2 x pipes from the distribution box to the room air plenum if air flow requirement exceed 10 L/s or if length over 15 meters  

  • Install 2 x pipes from the distribution box to the air extract plenum in the main shower rooms and Kitchen

  • All other areas only require a single pipe from the distribution box to the room air plenum

  • Radial ductwork is suitable to be fitted below your loft insulation providing superior heat retention Insulate any ductwork or Manifold/ Distribution boxes with a minimum of 25mm thermal duct wrap that go above insulation in unheated attic spaces

  • Slim-line manifolds are suitable for installation to concrete ceilings and only require a 100mm service void

  • Position supply plenums approx. 500mm from corner of wall (avoid areas above beds and wardrobes)

  • Position extraction plenums to outside of showers and above kitchen sink (not cooker)

  • Only extract from a room with a open appliance (stove) if there is a supply with equal or higher airflow


Installation Guide


1st Fix



  1. Position unit proverbially on a wall or vertical timber frame with provided wall bracket

  2. Install wiring for controllers (see bottom of page for further details)

  3. Install condensation drain from unit to internal or external drain

  4. Install wall /Soffit vents or roof vents (Minimum 1.5 meter apart) Pipes are 125mm diamater

  5. Position distribution boxes in the chosen location (proverbially in a central location minimising duct lengths )

  6. Install silencer (if specified) to air supply distribution box

  7. Install solid rigid ductwork and between distribution boxes and MVHR unit, (If possible allow for insulated flexible ductwork for final connections of MVHR unit )

  8. Install radial pipe into the distribution box ,

  9. Cut to length and install pipe into ceiling plenum, (insure you install rubber seal onto pipe) secure pipe in place with fixing band or pipe clips


Warning! There can be either one or two pipes going from the distribution box to the plenum depending on the required airflow , Always check plan that will indicate 1 or 2 pipes Install insulated rigid or insulated flexible ductwork to external vents Seal all open pipes to prevent debris and moisture ingress


 


2nd fix



  1. Trim ceiling Plenums to height of plasterboard (Easier to do before plastering ceilings)

  2. Install air valves to plenums (slightly open valve by two turns)

  3. Install all controllers

  4. Check that condensation drain has been fitted

  5. Switch unit on and follow the set up procedures

  6. Check air flow rates and commission system


Wiring Requirements



  • 3amp switched spur beside unit

  • Mount air flow controller beside unit (pre wired with1.5 meter cable - Do not extend)

  • A optional boost switch can be wired to the 4 core fly leed from unit- install a 3 core 1 to 1.5mm cable from unit to single box outside bathrooms, we have various options on our website under controllers


Commissioning


Commissioning mode is chosen by pressing the SET button for 4 seconds, all sensor inputs will be disabled in this mode so that they do not interfere with flow rates.


All LEDs will light with the Extract Boost flashing (Ext B), this indicates that the flow rate may now be increased/decreased as required.


The next press of the SET button will move commissioning to the next setting, Sup.B and so on.


When the unit has been fully commissioned, press the SET button for 4 seconds and this will put the unit back into status mode.


If the unit is not put back into status mode after commissioning, it will automatically revert back to status mode after an hour.


Note: Settings will be retained if the power

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