DV72 (CS) (Part No: 90000209)
Contents
1. Figure 15 14 For trouble free operation the drain should incorporate a U bend water trap not supplied to prevent air transfer and proper discharge into the household drainage system To prevent odours returning from the drain the water trap must be filled with water before putting the unit into operation For good practice place a cap full of cooking oil in the U bend to stop the water evaporating in the summer 3 5 Electrical connections The appliance must be earthed All wiring must confirm to BS 7671 Latest edition IEE wiring regulations This appliance is suitable for 230v 50Hz single phase supply fused at 3 amps This appliance is supplied with a mains flexible cable PVC sheathed 6 core 0 75mm A double pole switch having a minimum contact separation of 3 0mm must be used to provide isolation for the unit Low R1 Low 10096 adjustable Medium R2 10096 adjustable Remote Switch Positions 8 6 na Upon installation the fans should be started in High Speed mode to ensure optimum performance of the fans and switched to the required continuous ventilation setting The fan speed control must not be mounted above or within1m of the cooker where it could be affected by excessive heat or moisture Wiring diagram A five speed control switch 3 x manual 2 x external sensors is supplied Each fan speed must be adjusted to suit dwelling on installation R1 Low R2 Med R3 High Any2. be completed when the duct runs are completed For further information about the operation adjustment and maintenance of the unit read the following pages carefully Important Note The standard unit Part No 9041322 can be mounted vertically on the wall or horizontally on the floor with an additional condensation kit It is not suitable for ceiling Suspended installation For the ceiling suspended version please request the unit DV72 CS Part No 90000209 For more information please contact one of our sales representatives 3 Installation 3 1 Fitting the HR unit The mounting plate of the HR unit can be fitted directly to the wall or joists with the screws plugs and stand off feet provided Ensure that there is enough space for the condensation fitting and ducts to be connected The position of the electrical power supply an earthed wall socket or fused switched spur must not be mounted above or closer than 1m to a cooker where it could be atfected by excessive heat or moisture Important Note In order to maintain the quietest noise levels the unit should ideally be installed to a medium density block wall lf the unit is to be mounted to a stud wall then it should be where space is available screwed directly to studs via the back plate using the screws provided If space is limited and it is not possible to screw directly to these studs then additional battens should be fitted to the studs and the unit secured to these ba
3. right hand configuration From this point measure 52 5mm towards the rear of the unit this is the point deemed to be the most effective location for the condensation drain Now use a 20mm core drill bit to drill a clean hole at this point ensuring all the debris is removed Connect up to the household drainage system Ensure that the drain incorporates a U bend to prevent air penetration Ensure that the distance between the unit and the U bend is adequate for de mounting and cleaning if required Left Right mp Dischmrge in Atmospheres 1 3 Bimet from Wet Rooma Discharge io Atmosphere lt Intake from Outside 1735 mm 1735 mm Figure 3 Connection of the condensate drain vertical position Condensation drain 22mm standard PVC Remember The standard unit Part No 9041322 can be mounted vertically on the wall or horizontally on the floor with an additional condensation kit It is not suitable for ceiling suspended installation For the ceiling suspended version please request the unit DV72 CS Part No 90000209 For more information please contact one of our sales representatives 3 4 2 Connecting condensation drain Horizontal Positioning If the unit is to be installed horizontally it is necessary to use the condensation kit for horizontal installation Not supplied with the standard unit Part No 90000122 Position the unit ensuring there is a downwa
4. 9041381 Issue 10 6 12 AIRFLOW DUPLEXVENT MODEL DV72 Part No 9041322 DV72 CS Part No 90000209 Mechanical Ventilation with Heat Recovery Installation Instructions and User Manual comiguaton tetas might an Important This multi soeed unit requires Air Flow Rates to be adjusted on installation This manual must be kept by the householder 2 1 2 2 3 1 3 2 3 3 3 4 3 4 1 3 4 2 3 9 4 1 4 2 5 5 1 5 2 Index General Instructions Introduction General Overview of fitting the HR unit Installation Fitting the HR unit Important instruction Connecting ducts Connecting condensation drain Vertical Positioning Horizontal Positioning Electrical connections User Maintenance Cleaning the filters by user Cleaning the heat exchanger by user Technical specifications Appliance data Expanded view of the HR unit Declaration of conformity Warranty 10 15 17 17 18 19 19 20 21 22 1 General Instructions To maintain a healthy indoor environment closely controlled ventilation is essential There are many pollutants that will affect the indoor air quality human body waste products in the shape of dead skin perspiration and moisture Add to this the waste products of cooking cooking smells showering moisture gases from building materials and the waste products of pets Without proper ventilation this would be the perfect e
5. above directive 21 Warranty This product has a warranty period of two years The warranty can be upgraded to THREE years from the date of purchase against faulty material or workmanship by registering on our web site www airflow com The warranty only covers the product and not the installation cost In case such a fault in the manufacture becomes apparent during the Warranty Period Airflow may at its absolute discretion repair the product free of charge or refund the cost of the product AS LONG AS AND ONLY IF 1 The product is returned within the Guarantee Period with evidence of purchase date 2 The product has not been misused or handled carelessly or used on an inappropriate voltage supply 3 Repairs have not been attempted other than by Airflow s service staff or 4 In Airflow s sole discretion the product is found to be faulty If it were not found to be faulty the product would be available for collection from the relevant Airflow premises within one calendar month and if it was not collected it would be subsequently delivered by Airflow and a delivery charge will be made 5 Has been installed in accordance with the latest Building Regulations and IEE Wiring Regulations This warranty does not confer any rights other than those expressly set out above and does not cover any claims for consequential loss damage or any costs incurred in the replacement of the faulty product This warranty is offered as an extra benef
6. e unit taking care Clean the heat exchanger with not to damage the rubber seals warm soapy water use a Suitable sterilizing agent to sterilize Allow to dry fully before proceeding The fans must be cleaned if they are dirty Be sure not to bend the blades of the fan since this could cause a motor imbalance unnecessary noise and will shorten the life of the motor bearings To expose motors follow the above instructions and vacuum out where necessary We recommend that this is done at the same time as cleaning the heat exchanger 18 5 Technical specifications 5 1 Appliance data mM __ Switched gt External sensor EC Fan Speed settings selected on installation tows Middle High Ra Rs Max 100 adjustable R1 R2 R3 Maximum flow Free Discharge 280 m hr 78 l sec 0 100 adjustable on each speed Set on installation Dimensions w x h x d mm 560 x 635 x 260 Duct diameter m External diameter condensate discharge mm Low and Medium flow and optional sensor inputs Filter class Power vat 2 Static Pressure Pa 0 50 100 150 200 250 300 Volume m3 h Supply 8 Extract 19 5 2 Expanded view of the HR unit Please refer to guarantee terms for repair replacement within the guarantee period After expiry of the guarantee when ordering parts be sure to mention the article number see exploded view the type of heat recovery appliance serial numbe
7. ell as the exhaust system does not exceed 100 Pascal exhaust duct too close to the air inlet B Inlet duct from roof C Outlet duct from roof D HR unit Ducts from and to the house Condensation drain with U bend not supplied Fig 2 Connection example of Heat Recovery Unit 3 4 Connecting condensation drain 3 4 1 Connecting condensation drain Vertical Positioning The condensation drain must be mounted at the bottom of the heat recovery unit with the fitting supplied Use a 20mm core drill bit to drill a clean hole which removes the debris taking care to drill on the correct side of the unit according to left or right handed configuration see Figure 3 Only drill the hole from the inside out so as to avoid any damage to the heat exchanger or the mains cable Use silicon to seal the condensation fitting to the back half of the HR unit Please follow the steps below 1 Lay the unit on a flat level surface and remove the front half to the unit and put aside 2 Carefully slide the heat exchanger out from the housing 5 Determine what side you want the condensate drain to be see Figure 3 for left and right hand positioning If mounting the unit vertically the condensate hole needs to be in position shown at its lowest point to allow the condensate to run out image shown for right hand installation Mark off with a pencil 173 5mm from the side of the unit see Figure 3 taking into account left or
8. it and does not affect your statutory right as a consumer All information believed correct at time of going to press All goods are sold according to Airflow Developments Limited s Standard Condition of Sale which is available on request In the interest of continuous development Airflow Developments Limited continuously strive to improve their products and reserve the right to change specifications and prices without prior notice Al R LOW P Airflow Developments Limited Aidelle House Lancaster Road E mail info airflow com Cressex Business Park High Wycombe Telephone 44 0 1494 525252 Copyright 2012 Airflow Developments Ltd Buckinghamshire HP12 3QP UK Facsimile 44 0 1494 461073 22
9. lvent weld glue to fix the pieces in place T Piece Straight Pipes and 90 Bend Figure 9 3 4 2 2 Horizontal Mounting under the Ceiling Unit Part No 90000209 Green Front Cover of the Unit T PIECE SOLVENT WELD Warm Air To Rooms 22mm STRAIGHT PIPE SOLVENT WELD Extract From Wet Rooms 90 Intake From Outside BEND PIPE SOLVENT WELD Discharge To Almosphere Figure 10 Right hand installation The position of the drains will depend on left or right handed installation Figure 11 12 Right CEILING SURFACE Left Intake From Outside C gt gt Warm Rooms Warm Rooms Discharge To Atmosphere 7 Extract From Wet Rooms ET Extract From Wet Rooms Co Intake From Outside gt Discharge To Atmosphere Figure 11 Connection of the condensate drain horizontal position on the floor The condensation drain outlets must be positioned in the centre of the respective marks see Figure 12 on the plastic front cover of the unit Figure 10 EN e AN Figure 12 13 Use a 22mm hole saw to cut out the holes Figure 13 Use a silicon sealant to seal the condensation drain pieces to the HR unit Figures 14 E udi Figure 13 Figure 14 Assemble the rest of the kit using a solvent weld glue to fix the pieces in place T Piece Straight Pipes and 90 Bend Figure 15
10. nvironment for the growth of mould subsequent damage to the decoration and fabric of a home and to the health of its occupants The HR unit is fitted with two low energy EC fans with balanced 100 adjustable air volume The exhaust fan ensures that warm damp and polluted air as near as possible to the source is extracted The exhausted air has to be replaced with fresh air so the heat recovery unit not only has an exhaust fan but is also fitted with a supply fan and air filters The supply air which in winter is colder than the inside air is heated in the heat recovery unit using the heat of the exhaust air by means of the heat exchanger This heat exchanger has an efficiency of over 90 SO a minimum loss of heat takes place and the supply air temperature enters the home at a comfortable level In exceptionally cold weather or winter conditions it is possible that the exchanger may freeze due to sub zero cold incoming air Therefore the unit must be sited in a frost free location Alternatively an in duct heater may be used to protect the heat exchanger from freezing The filters in the unit ensure that the fresh supply air is clean as it enters the home Also the extract air from the property is filtered to protect the heat exchanger from unwanted contamination These filters have to be cleaned every month depending on the pollution The filters should be replaced once in six months or after a maximum of two cleaning cycles The uni
11. optional external sensors i e Humidity Timer Clock Motion PIR must also be adjusted when connected R4 R5 ouggested set points are shown for general purpose ventilation trickle medium purge which enable manual boost for purge maximum ventilation and or override of external sensors when fitted 15 YELLOW CON CABLE FROM EC MVHR UNIT GREEN EARTH BLACK NEUTRAL RED LIVE a E z gt lt Q oO z z T li gt d u E z i JE X 6 gt a MEDIUM R2 MED NIGHT SWITCH CONTROL R1 LOW SWITCH EXTERNAL SENSOR CONTROL SWITCHED CONTROL ON EXTERNAL R3 HIGH R4 R5 OR SWITCHES PURGE Electrical Diagram Figure 16 16 4 User Maintenance User maintenance is limited to periodically cleaning the filters fans and the heat exchanger The unit should not be used without filters 4 1 Cleaning the filters by user 1 2 owitch off the power supply Remove the filters Remove filter covers 3 4 Vacuum the outside of the filters After cleaning replace the filters Replace filter covers Switch power back on and check unit is operating normally Always ensure that the date is recorded on the back of the front panel 17 4 2 Cleaning the heat exchanger by user 1 2 Switch off the power supply Unscrew the 4 screws on the front of the unit Remove the front half of the unit 3 4 Remove the heat exchanger Reassemble th
12. r production year and the name of the part Example Appliance type DV72 Serial number Year of production 2010 Part No 9041322 Replacement Filters 2 9041511 Type and serial number are printed on the identification plate on the top of the inner assembly Parts List Article description Front cover Filter covers Filters 9041511 pack of two EPP mouldings Heat exchanger EC fans Fan assembly plates Outlet inlet spigots Condensation drain Back plate Fixing screws plugs and stand off feet h A SOONOUORWON 20 Declaration of Conformity We declare that the equipment detailed below conforms to the requirements of the EC council directives relating to electromagnetic compatibility and safety of electrical equipment Equipment type Supplied by Description of equipment Relative EC Council Directives Applied Harmonised Standards The Heat Recovery Appliance Model DV72 Airflow Developments Limited Aidelle House Lancaster Road Cressex Business Park High Wycombe Buckinghamshire HP12 3QP T 44 0 1494 525252 Visit airflow com Mechanical Heat Recovery Ventilation Unit 2004 108 EC EMC 2006 95 EC LVD EN 60335 1 2002 A2 2006 EN 60335 2 80 2003 A1 2004 BS EN 308 1997 EN13141 7 2004 Airflow Developments Limited warrants that heat recovery appliances are manufactured from high quality materials and that continuous quality control ensures that they comply with the
13. rd slope of 4 towards the condensate drain thus ensuring proper drainage Allow enough free space beneath the unit for accessing cleaning the filters and carrying out any maintenance Also ensure that there is enough space beneath the unit for the condensation fitting and ducts to be connected 3 4 2 1 Horizontal Mounting on the Floor UNDERSIDE VIEW OF ASSEMBLED UNIT I FIELCE SOLVENT WELD Warm Air To Rooms farm na STRAIGHT PIPE Extract From Wet Rooms 90 DEGREE Intake From Outside BEND PIPE SOLVENT WELD Discharge To Atmosphere Figure 4 Left hand installation 10 Left 07 E i a B D re S E NE E x uj Right gt Discharge To Atmosphere Intake From Outside Extract From Wet Rooms Intake From Outside Warm Air To Rooms gt i Discharge To Atmosphere FLOOR SURFACE Figure 5 Connection of the condensate drain horizontal position on the floor The condensation drain outlets must be positioned in the centre of the respective cutouts on the metal base plate of the unit Figure 4 The position of the drains will depend on left or right handed installation Figure 5 Use a 22mm hole saw to cut out the holes Figure 6 Use a silicon sealant to seal the condensation drain pieces to the HR unit Figures 7 and 8 Figure 6 Figure 7 11 Figure 8 Figure 9 Assemble the rest of the kit using a so
14. t s condensate drain must be connected to the household drainage system and must be insulated If the ductwork passes through an unheated area loft or similar location it must be insulated with an insulation material that complies with the latest Building Regulations DO NOT switch off the unit it is designed to run continuously If the unit is switched off indoor pollutants and moisture levels may increase which could endanger your health or damage your home In the event of a power failure or the unit being turned off restart the unit at High Speed This MVHR unit has a soft start It is important to follow the advice in this user manual and correctly maintain the system to ensure a healthy indoor environment 2 Introduction 2 1 General Duplexvent DV72 is a complete heat recovery unit to ensure optimum efficiency for your home The unit can easily be set up for left or right hand operation This can be done by changing the position of the condensation drain at the bottom of the unit See Figure 3 on page 9 Using the stand off feet screws and plugs supplied fit the unit vertically either in a kitchen cupboard or on a wall The unit is delivered complete with a mounting plate fitting instructions fixing kit condensation discharge fitting and a five speed switch 3 x manual 2 x external sensors 2 2 Overview of fitting the HR unit Outlet inet a m oo a e EMIL N Feiing Scre
15. ttens The unit is designed to be mounted a 600 wide cupboard or on a wall Make sure there is a free space at the front of the appliance for cleaning the filter and carrying out maintenance on the appliance For horizontal installation on the floor or in the ceiling suspended position please refer to the sections 3 4 2 1 or 3 4 2 2 respectively or contact one of our technical sales representatives 3 2 Important instruction Installation of the appliance must be carried out by a qualified and suitably competent person in accordance with all relevant Building Regulations Health amp Safety requirements and the fitting instructions of the heat recovery unit Installation should be carried out in clean dry conditions where dust and humidity are at minimum levels This appliance is not suitable for outdoor installation wiring regulations must be adhered to 3 3 Connecting ducts When the heat recovery unit has been installed the ducts can be fitted The ducts to and from the home are on one side of the unit The ducts to and from outside are on the opposite side In order to prevent condensation on the outside of the exterior air inlet and the air outlet duct both ducts must be insulated It is recommended that insulated ducting to be used for the ducts to and from the appliance without placing any strain on the terminal or fixings Remember When sizing the ducts try to ensure that the total resistance of the inlet as w
16. ws Plugs amp stand ott Feet Backplate Motor Heat Assembly Exchanger Front Cover Figure 1 Installation diagram 1 Place the unit flat on the floor and unscrew the four stud retaining screws keep screws safe 3 Without damaging the rubber seal separate the moulded top half of the unit from the bottom half by pulling the casing straight forward 4 Unscrew the four forward protruding studs and keep safely 5 Stand unit upright to separate the metal wall mounting plate from the bottom half of the casing Pull the casing forward leaving the rear protruding studs attached to the metal back plate 6 Secure the metal base plate to the wall by means of stand off feet screws and plugs supplied Locate the hole positions ensuring that there is enough space around the unit so that the duct work and the condensation drain can be fitted still attached to the wall 7 Reassemble the unit to the wall mounted back plate with the protruding studs in the reverse order of the removal procedure 8 When the HR unit has been mounted the duct runs can be completed Remember that both ducts to and from the outside should be fitted to one side of the unit and the ducts to and from the home are attached to the other side of the unit Also the condensation discharge can be fitted at this stage please see Figure 3 for reference on which side it should be fitted 9 If an appropriate electrical supply is present the installation can
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