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TF6401_E

Aereco S.A.

3.2.2. ACCESSIBILITY

The DXA Unit, as well as the DX Hub, must be positioned so that it is accessible for the

maintenance and in case of access or removal from the wall / false ceiling.

Recommendation for access hatches

The electrical connections must be easily accessible to be able to disconnect the DXA Unit from
the supply before any operation on the appliance. The circuit-breaker must be easily identified and
accessible.

3.2.3. FIXING OF THE DXA UNIT

The DXA Unit is fixed on a wall thanks to the use of two metal brackets, specific to Aereco. The first
bracket is fixed in the DXA while the second bracket is screwed in the wall. The two brackets are
assembled one within the other.

Quick suspension system proposed by Aereco

Wall

D > 15 cm

D > 5 cm

D > 2 cm

D > 5 cm

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Содержание DXA 230 EXCELLENCE

Страница 1: ...INSTALLATION AND MAINTENANCE INSTRUCTION ENGLISH VERSION dx system DXA 230 EXCELLENCE Room by room demand controlled heat recovery ventilation for cupboard installation TF6401_E Aereco S A ...

Страница 2: ...twork 19 3 8 Fire protection 19 4 Electrical connections 21 4 1 Electrical connection on the DXA Unit 21 4 2 Electrical connection of the defrosting 22 4 3 Electrical connection of the condensate pump for DXA1247 22 5 Starting and settings of the DXA 23 6 Maintenance 23 6 1 Regular maintenance of the installation 23 6 2 Fuse 23 6 3 Power supply and motor material protections 24 6 4 Filters 24 7 Tr...

Страница 3: ... aged from 8 years and above and persons with reduced physical sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance The electrical installation and electrical connections must be carried out by a qualified tech...

Страница 4: ...he bathroom or in the kitchen An additional compensation valve integrated in the DX Hub 2 adjusts supply compensation airflow supplying preheated 9 fresh air in the living room in the kitchen or in a corridor Compensation valves are linked to dedicated compensation exhaust unit 7 or dedicated compensation supply unit 4 The use of an exhaust compensation valve is also a solution to increase the air...

Страница 5: ...ce Interface Heat recovery unit with balanced demand controlled airflows Preheater 9 Galvanised steel body with built in resistance MCP 125 8 Exhaust compensation valve S CO2 5 CO2 sensor SDC 100 3 Supply unit SDC 125 for DX Hub 5 only 4 Supply unit for balance S PRE Presence sensor Air intake and outlet grilles 10 BXC 6 Exhaust units various sensors RJ 12 RJ 45 cables Acoustic attenuation 11 List...

Страница 6: ...ust air 2 F7 anti pollen filters for the fresh air G4 filter for the exhaust to protect fans and the exchanger Continously checking of filter clogging and warning for filter change High efficiency heat exchanger with plastic plates washable Intelligent electronic control unit of the heat recovery with integrated or remoted control interface Integrated bypass and free cooling automatically controll...

Страница 7: ... 494 520 546 DN 13 DN 160 151 100 755 124 280 100 129 200 114 636 636 685 695 78 134 254 340 Ø158 Ø158 695 773 126 685 DN75 105 Ø13 DX Hub Distribution box for demand controlled supply airflows DX Hub 5 5 outlets in DN100 1 outlet for balanced airflows in DN125 DX Hub 6 6 outlets in DN75 Outlets n 5 and n 6 are dedicated to living room airflows only and modulate both at the same time according to ...

Страница 8: ...m 2000 m Temperature range of the installation place 5 C 50 C 5 C 40 C 5 C 40 C Humidity range of the installation place 5 95 Max 80 at 31 C linear decrease up to 50 at 40 C 5 95 3 2 DXA UNIT The caps on the DXA Unit must stay during the entire duration of the work in order to keep dust and pollution from getting into the boxes 3 2 1 LOCATION Before the installation be sure of the solidity of the ...

Страница 9: ...le to be able to disconnect the DXA Unit from the supply before any operation on the appliance The circuit breaker must be easily identified and accessible 3 2 3 FIXING OF THE DXA UNIT The DXA Unit is fixed on a wall thanks to the use of two metal brackets specific to Aereco The first bracket is fixed in the DXA while the second bracket is screwed in the wall The two brackets are assembled one wit...

Страница 10: ...E Aereco S A Installation of the fixing system for the DXA Unit 1 5 6 7 8 x2 x12 x12 x12 DXA Unit DXA Unit 2 3 4 Ø6 mm Note For plasterboard walls molly metal anchors may be used instead of provided plastic anchors ...

Страница 11: ...HE DX HUB The DX Hub have 4 brackets for direct fixing to the ceiling above the false ceiling or to the wall When installed on the ceiling using studs or cables to attach the box facilitates precise observance of the positioning requirements The auto blocking fixation system proposed by Aereco can only be used with a concrete ceiling Quick suspension with auto blocking system proposed by Aereco fo...

Страница 12: ... a distribution box by a Ø100 mm for rigid duct or by a Ø75 mm duct for semi rigid duct Each semi rigid duct cannot afford an airflow bigger than 30 m3 h 1 Ø100 or Ø75 mm 2 Ø100 mm or Ø125 mm 3 Ø160 mm 4 Ø160 50 mm insulation Supply rigid or semi rigid duct flexible connection to the unit 1 m max avoid noise in the room Exhaust air rigid avoid pressure drop or semi rigid duct Air intake and air ou...

Страница 13: ...NSATES To evacuate condensates it is recommended to use a lift pump It is also possible to use a siphon to evacuate them by gravity but a minimum slope of about 3 is recommended for the good evacuation of condensates To ensure watertight connections between the condensate evacuation pipe and the lift pump or the siphon the DXA Unit is delivered with these components already built in The DXA1240 is...

Страница 14: ...ust after the damper This allows to measure the pressure at the same level than the extract units This measure takes into account the pressure drops through filters and exhaust ductwork It ensures at the extract units the require pressure needed for a perfect running with a very high accuracy 232 205 Ø125 mm Exhaust compensation valve Positioning of the exhaust compensation valve with access hatch...

Страница 15: ...ual reset or for maintenance access hatch Manual reset of the defrosting 1 Unscrew the black cap 2 Push the red button and screw back the black cap on The defrosting must not be installed with the electrical device at the bottom Note The DXA Unit has been specially designed to work with the defrosting provided by Aereco defrost strategy specific to DX System and adapted diameter Besides it has bee...

Страница 16: ...luminosity in the room is very low the LED is automatically switched off The S PRE sensor must be installed on the ceiling at a place it can easily detect the presence The operating scenarios are the following ones if detection during the night over ventilation for 45 minutes after the last detection if detection during the day over ventilation for 20 minutes after the last detection if no detecti...

Страница 17: ...DX Hub outlet n 4 is connected to living room Note 1 The sensors are delivered in position 0 They must be manipulated with extreme care Note 2 For the DX Hub 5 outlet 5 is driven by the sensor n 5 For the DX Hub 6 outlets 5 and 6 are driven by the sensor n 5 Choice of sensor number on the electronic card 1 3 4 5 2 TF5414_B B A C D E F 0 CO2 sensor 3 5 2 C02 SENSORS DX S C02 C02 Sensors must be ins...

Страница 18: ...s Energy Energy Maintenance Maintenance Boost ventilation Free cooling Settings System status Energy Maintenance Boost ventilation Free cooling Settings System status Energy Maintenance RJ12 cable 10 m max DXA Unit with its interface fixed on a wall Opening of the user s interface dedicated for a wall fixation DXA Unit and its built in interface RJ12 cable connected to one of the DXA RJ12 availabl...

Страница 19: ...e main rooms in that case Avoid slopes flexible ducts must be securely attached Tauten the straight parts so that the duct is smooth and straight when using flexible or semi flexible ducts If the flexible duct is longer than necessary it must be cut rather than pushing the surplus into the false ceiling Do not crush the duct or squeeze it down to force it through a narrow passage The interior of t...

Страница 20: ...m Supply 230 V 1 5 mm Note RJ12 and RJ45 cables provide both supply and connections The DX Hub allows also 5 RJ12 connections where sensors or user s interface can be connected instead of connecting sensors to the DXA Unit itself However the maximal RJ12 cable length between the DX Hub and the sensors must not exceed the length calculated thanks to the equation below Number of CO2 sensors connecte...

Страница 21: ...5 Defrosting control 9V optional 6 Compensation exhaust valve RJ 45 7 9VDC OUTPUT 8 230VAC 50 60Hz 180W max 9 ON OFF DXA Unit To circuit breaker 2A N GND L 1 2 3 4 5 7 6 9 8 230VAC 1 5mm 230VAC 1 5mm 230VAC 1 5mm The main power supply is on the DXA Unit Sensors user s interface DX Hub and the exhaust compensation valve are accessed from communication bus Optional exhaust units can be connected to ...

Страница 22: ...standards in force in the country of installation Plan a contact separation device having an opening distance of at least 3 mm on each pole Note there is no alarm in the defrosting provided by Aereco Details of condensate pump electrical connections 4 3 ELECTRICAL CONNECTION OF THE CONDENSATE PUMP FOR DXA1247 THE DXA1247 is provided with a built in siphon It is still possible to connect a condensa...

Страница 23: ...t and exhaust air outlet check the unobstructed passage of air no dead leaves no snow Supply and exhaust units cleaning as recommended by the manufacturer this part can be done by the occupant Evacuation of condensates check that the system is not obstructed by impurities WARNING Plan replacement of the condensates evacuation pump according to the life span announced by the supplier If using a DXA...

Страница 24: ...ounted for this operation All filters 1xG4 and 2xF7 must be replaced at the same time Filter removal replacement Removal 2 Remove the three filter hatches by pulling on the hatches handle F7 filter F7 filter G4 filter 3 Remove each filter by holding it firmly along its edge and pulling it out of the filter slot the filter is a push fit item and not fastened in place 1 Switch off the unit Fresh air...

Страница 25: ...ent 1 Ensure that the new clean filters are firmly pushed back into their slots 2 Replace the three filter hatches by pulling on the hatches handle 3 Switch on the unit F7 filter F7 filter G4 filter Fresh air outdoor Exhaust air indoor ...

Страница 26: ...e the network installation use the recommended grilles and roof exhausts Be sure to respect the recommendations of installation Too high number of extraction grille Check the operating limits Filters are clogged Make sure filters have been changed when system asked for it Heat exchanger is frozen Using a defrosting Make sure the defrosting is connected to the unit and to the main Make sure the def...

Страница 27: ...ity 1 access hatch for the DXA Unit and 1 access hatch for the DX Hub Positioning of the DXA Unit vertical and fixation of the DXA Unit to the wall Conformity of connection direction shown by the arrows on the DXA Unit Flexible connection sleeve at the DXA Unit and airtightness of the connections Exhaust air and fresh air duct insulated and Ø160 mm ELECTRICAL DEVICE Remarks Supply voltage Ground c...

Страница 28: ...ssories with gasket Fresh air and used air ducts in heated space must be insulated with 50 mm insulation to avoid any condensation problems 9 SPECIFIC RECOMMENDATIONS FOR AIRTIGHTNESS AND INSULATION OF THE INSTALLATION To remain airtight in the long term the ductwork must be mechanically strong attachment between duct elements and correctly supported Failing this the sag may eventually crack the m...

Страница 29: ...iercing screws can be used to make accessories and ductwork with gaskets as explained by the manufacturers If it is not planned to use accessories with gaskets it is essential to use a special airtight ventilation adhesive at each junction between ducts or mastic Take care also to do as little cutting as possible on site Any bushings through walls the roof etc must be made with rigid duct In order...

Страница 30: ...bushing Recommendations to control the tightness of the unit 1 2 3 3 1 2 5 6 4 3 1 Roof hoods 2 Mastic seal 3 Skylight frame 4 Bonding with vapour barrier adhesive tape or pose of a sleeve with adhesive tape 5 Vapour barrier 6 Mastic seal 1 Insulation 2 Mastic seal 3 Tube Junction between the unit and the duct by coupling with gasket 1 Airtight spigot 2 BXC exhaust unit with peripheral seal includ...

Страница 31: ...rying hot air that is outdoors or in an unheated volume must be insulated with 50 mm of glass wool or equivalent The exhaust of the DXA Unit operates at a constant pressure of 60 Pa This makes it necessary to set the BXC unit to the correct position fixed shutter in order to guarantee the desired flow rates see BXC installation instruction Units can be wall mounted or installed in the ceiling they...

Страница 32: ...etween each setting of 10 m3 h maximum 50 m3 h See the table below for more details concerning the airflow set up at 60 Pa Ø 100 mm Ø 125 mm Pos Min airflow m3 h 60 Pa Max airflow m3 h 60 Pa Pos Min airflow m3 h 60 Pa Max airflow m3 h 60 Pa 0 9 62 0 9 54 1 14 70 1 14 62 2 19 77 2 19 70 3 23 85 3 23 77 4 28 93 4 28 85 5 33 101 5 33 93 Case of exhaust units with manual flow control The installation ...

Страница 33: ...ries of the European Union and other countries with special collection centre The symbol on the appliance indicates that this appliance should not be treated as domestic waste It must be taken to a special collection centre for the recycling of electrical and electronic equipment For further information on the treatment recovery and recycling of this product contact your competent local office the...

Страница 34: ...2 10 EN 60335 1 2012 DIN EN 60335 2 40 VDE 0700 40 2010 03 EN 62233 VDE 0700 366 2008 11 14 CHARACTERISTICS 1 2 3 7 5 6 8 4 9 10 14 11 12 13 1 Base 2 Condensate pump specific to DXA1240 3 Siphon specific to DXA1247 4 Fans 5 Bypass 6 F7 filters 7 G4 filter 8 Heat exchanger 9 Condensates receiver 10 Spigots 11 Control and supply box 12 Access hatches of the filters 13 Bottom cover 14 Ducts cover opt...

Страница 35: ...its type humidity presence switch C02 VOC Characteristics Exchanger polystyrene counter flow type 93 efficiency Filters on supply air 2 x F7 on exhaust air 1 x G4 Weight kg 23 Colour white Material main expanded polypropylene EPP covered by a white galvanized metal sheet Dimensions mm with duct connectors 1428 x 552 x 545 without duct connectors 1188 x 552 x 545 Installation Max number of main roo...

Страница 36: ...units 5 x ø100 mm 1 x ø125 mm Installation Installation horizontal or vertical Installation room frost free 5 C T 50 C HUB 6 Standard code HUB1434 Airflow characteristics Pressure at supply Pa 60 Acoustics Phonic enveloppe Phonic silencers Electrics Electrical connections sensors 5 x RJ12 Characteristics Weight kg 18 Dimension mm 750 x 684 x 199 Colour metal Material main galvanised steel with pho...

Страница 37: ...545 40 482 545 138 118 151 R80 248 155 554 R80 101 0 50 100 150 200 250 0 50 100 150 200 250 300 350 0 50 100 150 200 250 0 10 20 30 40 50 60 70 80 90 100 a b c d Pressure in Pa Airflow in m3 h Power in W Airflow in m3 h 80 m3 h 140 m3 h 200 m3 h 230 m3 h DXA Unit maximal airflow setting a 49 dB b 54 dB c 59 dB d 60 dB Sound power level Lwa 80 m3 h 140 m3 h 200 m3 h 230 m3 h DXA Unit maximal airfl...

Страница 38: ...UB 5 DIMENSIONS IN MM DX HUB 6 118 151 622 577 31 5 21 5 DN 100 DN 125 DN 100 DN 160 433 200 DN 100 100 100 468 494 520 546 DN 13 DN 160 151 100 DN 158 100 126 200 773 750 685 105 129 DN 75 DN 158 114 340 DN 13 695 685 254 280 124 78 134 636 636 755 ...

Страница 39: ...39 40 TF6401_E Aereco S A Notes ...

Страница 40: ...pyright Aereco All data and pictures in this document are non contractual and are subject to change without prior notice Aereco S A 62 rue de Lamirault Collégien 77615 MARNE LA VALLEE CEDEX 3 FRANCE www aereco com ...

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