9041381 DV72 EC Operating Instructions Issue 5 8_10_docx
Contents
1. 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 backplate 6 Secure the metal base plate with the rear studs still attached to the wall 7 Re assembly of the unit to the wall mounted backplate with the protruding studs is the reverse of the removal procedure 4 User Maintenance User maintenance is limited to periodically cleaning the filters and the heat recovery cube The unit should not be used without filters 4 1 Cleaning the filters by user 1 2 Switch off the power supply Remove the filters Remove front panel Remove filter covers 3 4 Vacuum the outside of the filter After cleaning replace filters at same side 5 Replace filter covers and front panel Always ensure that the date is recorded on the back of the front panel 4 User Maintenance 4 2 Cleaning the heat exchanger by user 1 2 Important Switch off the power supply Unscrew the 4 screws on the front Remove front panel of the unit Remove the front half of the unit 3 4 Remove the heat exchanger Reassemble the unit taking care Clean the heat exchanger with warm not to damage the rubber seals soapy water Use a sterilizing agent to sterilize 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 t2. 9041381 Issue 5 8 10 EET Tel 01206 228500 DUPLEXVENT MODEL DV72 EC Mechanical Ventilation with Heat Recovery Installation Instructions and User Manual Commissioning Data to be completed by the installer Date of installation Configuration Left Hand Right Hand Product Serial No Important This multi speed 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 5 3 6 4 1 4 2 5 1 5 2 Index General Introduction General Fitting the HR in brief Installation Mounting the HR unit Important instruction Connecting ducts Connecting condensation drain Electrical connections Overview installation HR diagrams User Maintenance Cleaning the filters by user Cleaning the heat exchanger by user Technical specifications Appliance data Exploded view of the HR unit SAP Appendix Q test results Declaration of conformity Warranty 1 General 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 COs 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 wou
3. Vertical Position D Q ey Po Intake from Outside Intake from Outside gt Discharge to Atmosphere Sa Extract from Wet Rooms gt Warm Air to Rooms o o a 12 Q lt Q 2 o D i 8 2 Q lt Extract from Wet Rooms D gt ee lt gt Warm Air to Rooms ee TECETES i lt a Condensation Drain Figure 3 Connection of HR to drain pipe 3 Installation 3 4 Connecting condensation drain Horizontal Position Left Right LAA A A SS a 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 Switch Positions Function Low R1 100 adjustable Medium R2 100 adjustable High R3 100 adjustable Remote Switch Positions R4 100 adjustable R5 100 adjustable Upon installation the fan 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 contro
4. ance Flexible ducting should be fully extended with no drooping over joists but without placing any strain on the terminal or fixings We recommend a minimum distance of 200mm between the appliance and any sharp bends in the duct work This is to ensure that the noise levels are kept a minimum Remember When sizing the ducts try to ensure that the total resistance of the inlet as well as the exhaust system does not exceed 100 Pascal 3 Installation No exhaust duct too close to the B J f air inlet B Inlet duct from roof 5 C Outlet duct from roof ONN D HR unit Ducts from and to the house F Condensation drain not supplied Gy Wc Fig 2 Connection example HR Heat Recovery Unit G 3 4 Connecting condensation drain The condensation drain must be mounted at the bottom of the HR heat recovery unit with the fitting supplied Use a 20mm hole saw to cut out the bung taking care to cut on the correct side of the unit according to left or right handed configuration Avoid damage to the mains cable Use silicon seal and to seal the condensation fitting to the back half of the HR unit The drain must discharge into the household drainage system or directly to outside Take care that the distance between the unit and U bend will be enough for de mounting and cleaning Important Note The drain must incorporate a U bend to prevent air penetration Condensation drain 22mm standard PVC
5. ble Q4 results are only applicable for Approved Document F requirements 14 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 EN 50366 2003 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 above directive 15 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 at www airflow com The Warranty covers the product only 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 produ
6. ct 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 benefit 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
7. d fan exchange Practice configuration setting Ai ae Benona CEE a Compliant Kitchen 1 additional wet N A N A room These figures are entered into either a In the case of SAP software amended to SAP 2005 version 9 81 allowing direct entry of MVHR data the SAP software or b In the case of SAP software amended to SAP 2005 version 9 81 not allowing direct entry of MVHR data the SAP Q MVHR Calculation Spreadsheet v9 81 and the results from the spreadsheet into the Special Features part of the SAP 9 81 software or c In the case of SAP software to SAP 2005 version 9 80 the SAP Q MVHR Calculation Spreadsheet v9 80 and the results from the spreadsheet into the Special Features part of the SAP 9 80 software They must NOT be entered directly into SAP 2005 version 9 80 software Results for Approved Document F at maximum flow rate condition Table Q4 Total Exhaust terminal Fan speed exhaust flow Ea eaeey configuration setting rate l s l s Kitchen 100 1 additional wet room Variable 15 0 15 0 Kitchen 100 2 additional wet rooms Variable AD 21 0 Kitchen 100 3 additional wet rooms Variable arn 27 0 Kitchen 100 4 additional wet rooms Variable Pan 33 0 Kitchen 100 5 additional wet rooms Variable 39 0 39 0 Comments Only figures from Table Q2 or Table Q3 not both should be used with the SAP Q Calculation Spreadsheet for this technology type Ta
8. densation discharge fitting The equipment requires a three speed switch which is available at an extra cost 2 2 Fitting the HR in brief 1 Dismantle the HR unit in accordance with Section 3 of this manual 2 Mounting plate Mounted by means of stand off feet screws and plugs supplied vertically or horizontally 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 3 Reassemble the HR unit in accordance with Section 3 of this manual 4 When the HR unit has been mounted the ducting runs can be completed Remember that both ducts to and from outside will 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 under the unit can be fitted at this stage please see figure 3 for reference on which side it should be fitted 5 When the duct runs are completed if an appropriate electrical supply is present the installation can be completed For further information about the operation adjustment and maintenance of the unit read the next pages carefully 2 3 Installation 3 1 Mounting the HR unit The mounting plate of the HR unit can be fitted directly to the wall or joists with the delivered screws plugs and stand off feet Ensure that there is enough space for the condensation fitting and ducts to be connected The position of the electrical power suppl
9. he 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 Technical specifications Appliance data m Switched lt External sensor p f Low Middle High EC Fan settings selected on installation speed speed speed R4 R5 Max 100 adjustable R1 R2 R3 Typical Ventilation Settings m h 54 140 280 97 75 280 Rated power W 10 42 150 20 14 150 Permissible duct system resistance Pa 100 Pa at 200 m h Maximum flow Free Discharge 280 m hr 78 s Low and Medium flow and optional sensor inputs 0 100 adjustable on each speed Set on installation Dimensions w x h x d mm 560 x 635 x 260 Duct diameter m 125 External diameter condensate discharge mm 22 Filter class EU3 Weight kg 14 kg Supply voltage V Hz 230V 50Hz 1Ph Power watts Maximum 150W Protection degree IPX2 Thermal efficiency up to up to 94 Fan air performance graph 8 8 g Static Pressure Pa 8 Volume m3 h Supply E Extract 5 Technical specifications 5 1 Exploded 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 code numbe
10. l must not be mounted above or closer to 1m to the cooker where it could be affected by excessive heat or moisture 3 Installation 3 5 Electrical connections 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 R3 R4 R5 Any optional external sensors i e CO2 Humidity Timer Clock Motion PIR must also be adjusted when connected R1 R2 Suggested 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 EXTERNAL SENSOR le SWITCHED CONTROL XS EXTERNAL SENSORS OR SWITCHES PURGE ees gg ee MAINS SUPPLY SWITCH eat CONTROL e J1 NIGHT BOTTOM SIDE g i E i lt L 2 Ww w BLUE 0V Z N x Zz a YELLOW CON 5 i u WHITE 10V S R g CABLE FROM EC MVHR UNIT BLACK NEUTRAL l GREEN EARTH RED LIVE 3 6 Installation diagram Mounting the unit Pull the green front cover off the four Velcro fixings 2 Place the unit flat on the floor and unscrew and keep safely the four stud retaining screws 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
11. ld be the perfect environment for the growth of mould and subsequent damage to the decoration and fabric of a home and the health of its occupants The HR unit is fitted with two fans The exhaust fan ensures that warm damp and polluted air as near as possible to the source will be extracted The exhausted air must be replaced with fresh air and so the HR heat recovery unit has not only 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 94 so a minimum loss of heat takes place and the supply air temperature is at an acceptable and comfortable level In exceptionally cold weather winter conditions it is possible that the exchanger may freeze due to sub zero cold incoming air In such circumstances temporarily turn off the unit to allow the exchanger to thaw If the problem persists an in duct heater may be required switch not supplied The fans are low energy EC motors with a constant 100 adjustable air volume 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 annuall
12. meter rigid plastic Results of leakage tests Table Q1 Internal Pass External Pass 12 Results for SAP calculations at minimum flow rate condition This product has only been tested with rigid ductwork and the data are not applicable for SAP calculations if installed with flexible ductwork Table Q2 Systems with rigid ductwork only Kitchen 1 additional wet Reed Yes room Kitchen 5 2 additional wet Mied Yes rooms Kitchen 3 additional wet TA Yes rooms Kitchen A 4 additional wet Ba Yes rooms Kitchen 5 5 additional wet PA No rooms These figures are entered into either a In the case of SAP software amended to SAP 2005 version 9 81 allowing direct entry of MVHR data the SAP software or b In the case of SAP software amended to SAP 2005 version 9 81 not allowing direct entry of MVHR data the SAP Q MVHR Calculation Spreadsheet v9 81 and the results from the spreadsheet into the Special Features part of the SAP 9 81 software or c In the case of SAP software to SAP 2005 version 9 80 the SAP Q MVHR Calculation Spreadsheet v9 80 and the results from the spreadsheet into the Special Features part of the SAP 9 80 software They must NOT be entered directly into SAP 2005 version 9 80 software 13 Table Q3 Systems with flexible ductwork only ran Spectic Heat Pray S09 Exhaust terminal spee
13. r see exploded view the type of heat recovery appliance serial number production year and the name of the part Example Appliance type DV72 EG Serial number Year of production 2010 Part No 9041322 Part required Replacement Filters 2 9041511 Type and serial number are printed at the identification plate on the top of the inner assembly Parts List Z Article description Back Plate EPP Mouldings Condensation Drain EC Fans Heat Recovery Cell Filters 9041511 pack of two Filter Covers Front Plate ONOORAND 11 SAP Appendix Q Testing Results Central mechanical supply and exhaust ventilation system packages with heat recovery used in a single dwelling Brand Name Airflow Model Duplexvent DV72 Model Qualifier if applicable Name Airflow Developments Ltd Lancaster Road Cressex Business Park Current Manufacturer Address High Wycombe and Contact Details HP12 3QP Telephone 01494 525252 Website www airflow co uk Original Manufacturer if different First Year of Manufacture 2010 Last Year of Manufacture Testing Body BRE Date of test 22 03 2010 Serial Number of Product Tested 5780 EC MVHR to outside grille duct types and size 150 amp 125 mm diameter rigid plastic and 200 mm diameter rigid plastic Duct types and sizes used for supply and exhaust 150 amp 125 mm diameter rigid plastic and 200 mm dia
14. y an earthed wall socket or fused switched spur must not be mounted above or closer than 1m to a cooker where it could be affected by excessive heat or moisture The unit is designed to be mounted in a 600mm wide kitchen or airing cupboard or on a wall or on its back in a loft Make sure there is a free space at the front of the appliance for cleaning the filter and carrying out maintenance on the appliance When fitting on its back make sure that a minimum of 4 down slope to ensure proper drainage of condensation 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 and Health amp Safety requirements and the fitting instructions of the HR 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 IEE wiring regulations must be adhered to 3 3 Connecting ducts When the HR 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 duct and the air outlet duct both ducts must be insulated It is recommended that flexible ducting with a minimum length of 1500mm be used for the ducts to and from the appli
15. y or after a maximum of 3 cleaning cycles 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 and become a danger to your health and damage your home In the event of a power failure or the unit has been turned off restart the unit at High Speed This MVHR unit has a soft start This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not play with the appliance 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 The HR is a complete heat recovery unit to ensure optimum efficiency for your home The unit can easily be set up for left or right handed operation This can be done by changing the position of the condensation drain at the bottom of the unit See figure 3 on page 4 Using the stand off feet screws and plugs supplied fit the unit vertically or horizontally either in a kitchen cupboard or on a wall or on its back in the loft space As standard the unit is delivered complete with a mounting plate fitting instructions fixing kit and a con
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