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Aereco DXA 230 EXCELLENCE Installation And Maintenance Instruction

Room-by-room demand controlled heat recovery ventilation for cupboard installation
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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.

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Summary of Contents for Aereco DXA 230 EXCELLENCE

  • Page 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.

  • Page 2: Table Of Contents

    9.1. Insulation of the installation 9.2. Airtightness of the installation 10. Supply and exhaust units 10.1. Supply units 10.2. Exhaust units 10.3. Fresh air inlet and exhaust air outlet 11. Environmental concerns 12. Warranty 13. Conformity and standard 14. Characteristics TF6401_E Aereco S.A.

  • Page 3: Introduction

    · Power cable modification or replacement must only be carried out by qualified personnel or by After-sales Service in order to avoid any accident. · Cleaning and user maintenance shall not be made by children without supervision. TF6401_E Aereco S.A.

  • Page 4: Description

    45 min. When there is detection, the any other pollution (humidity, dust, etc.). local supply airflow is increased to ensure the best air quality. If there is no detection, the local supply airflow is reduced to optimize energy savings. TF6401_E Aereco S.A.
  • Page 5 Preheater BXC b Exhaust compensation valve Galvanised steel body Exhaust units (various sensors) Exhaust unit for balance with built-in resistance Air intake RJ 12 - RJ 45 cables Interface Acoustic attenuation and outlet grilles List of components TF6401_E Aereco S.A.

  • Page 6: Construction / Dimensions

    · 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 controlled. ø160 ø160 R2,50 Dimensions of DXA Unit (mm) TF6401_E Aereco S.A.

  • Page 7: Dxa Assembling

    EPP material. No need to seal the spigots once they are pushed in the inlets and outlets of the DXA, the lipseals make it already airtight. Assembling of the DXA spigots TF6401_E Aereco S.A.

  • Page 8: Installation

    (top view) D = 5 mm wall (side view) Positionning of the DXA Unit The DX Hub can be either installed vertically or horizontally. When mounting the DX Hub, the top must be closed, otherwise the Hub may warp. TF6401_E Aereco S.A.

  • Page 9: Accessibility

    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.
  • Page 10 10 / 40 Installation of the fixing system for the DXA Unit. Ø6 mm DXA Unit DXA Unit Note : For plasterboard walls, molly metal anchors may be used instead of provided plastic anchors. TF6401_E Aereco S.A.

  • Page 11: Fixing Of The Dx Hub

    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 for the DX Hub (optional, code : ADX1106) Ø8 mm DX Hub...

  • Page 12: Duct Connections To The Dxa Unit

    Exhaust air: rigid (avoid pressure drop) or semi-rigid duct Air intake and air outlet: insulated rigid duct (avoid pressure drop and condensation) SDC100 to fresh air inlet SDC100 Duct diameters and recommendation concerning the type of ducts TF6401_E Aereco S.A.

  • Page 13: Evacuation Of Condensates

    · A vertical height of 8 meters must not exceed between the lift pump and the evacuation duct. Note: The lift pump proposed by Aereco was tested and validated specially for DX System. Using another lift pump can lead to serious problems of functioning and degrade the security of the system.

  • Page 14: Exhaust Compensation Valve (Mcp 125)

    125 mm duct) from any fittings, and from the compensation unit. D > 38 cm D > 38 cm In addition, there must be an inspection hatch to access the valve for maintenance. Positioning of the exhaust compensation valve with access hatch TF6401_E Aereco S.A.

  • Page 15: Defrosting

    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 been CEM certified with the Positioning of the defrosting compared to the DXA Unit.

  • Page 16: Sensors

    - A maximum of 5 sensors can be connected to the system. - The connection to the system is made through RJ12 wires. Only the specific ones supplied by Aereco can be used. 3.5.1. PRESENCE SENSORS (DX S-PRE) The DX S-PRE presence detector uses infrared radiation to measure movements made in a room.

  • Page 17: Setting Of The Sensors Dx S-Pre And Dx S-Co2

    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. TF6401_E Aereco S.A.

  • Page 18: Dxa User's Interface

    Boost ventilation Free cooling Settings System status Energy Maintenance Settings Free cooling Boost ventilation Energy Maintenance System status Maintenance System status Energy Boost ventilation Free cooling Settings System status Energy Maintenance DXA Unit and its built-in interface TF6401_E Aereco S.A.

  • Page 19: Special Care For The Ductwork

    (see recommendations for the installation of the units in page 28). 3.8. FIRE PROTECTION The installation must comply with the fire protection standards in force in the country concerned. TF6401_E Aereco S.A.

  • Page 20: Electrical Connections

    Disconnect the electrical supply before any operations and ensure that the DXA Unit cannot be started accidentally. Only cables provided by Aereco must be used to carry on the DXA Unit installation. If using different cables, Aereco won’t be able to guarantee the good functioning of the appliance.

  • Page 21: Electrical Connection 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 9 VDC output supply [7] via a 2 wire cable having a cross sectional area of at least 0.75 mm² and a maximal length of 25 meters. TF6401_E Aereco S.A.

  • Page 22: Electrical Connection Of The Defrosting

    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. 4.3. ELECTRICAL CONNECTION OF THE CONDENSATE PUMP FOR DXA1247 THE DXA1247 is provided with a built in siphon.

  • Page 23: Starting And Settings Of The Dxa

    Details of internal electronic card 6.3. POWER SUPPLY AND MOTOR MATERIAL PROTECTIONS In case of dysfunction of the appliance, these protections will be turned on. It is then necessary to disconnect the appliance during 30 seconds to restart the DXA Unit. TF6401_E Aereco S.A.

  • Page 24: Filters

    2. Remove the three filter hatches by 3. Remove each filter by holding it firmly along its pulling on the hatches' handle. edge and pulling it out of the filter slot (the filter is a push-fit item and not fastened in place). TF6401_E Aereco S.A.
  • Page 25 G4 filter F7 filter F7 filter Replacement 1. Ensure that the new (clean) filters are firmly 2. Replace the three filter hatches by pulling pushed back into their slots. on the hatches' handle. 3. Switch on the unit TF6401_E Aereco S.A.

  • Page 26: Troubleshooting

    How to reset the device ? with wrong values, it is still possible to 4) Replace the interface reset the whole system. 5) Switch on the heat recovery unit 6) Make again the installation procedure following the interface requirements. TF6401_E Aereco S.A.

  • Page 27: Acceptance Of Works

    · the airflow rates and pressures at the exhaust and supply units, · the airflow rates at the fresh air intake and the used air discharge, · possibly, the sound level in the main rooms and very close to the fans, · check the modulation of the airflow. TF6401_E Aereco S.A.

  • Page 28: Specific Recommendations For Airtightness And Insulation Of The Installation

    (attachment between duct elements) and correctly supported. Failing this, the sag may eventually crack the mastic. Any duct carrying hot air that is outdoors or in an unheated volume must be insulated with 50 mm of glass wool or equivalent. TF6401_E Aereco S.A.

  • Page 29: Insulation Of The Installation

    A special component with a metal plate at the wall in contact with the exterior and a special sealant adhesive can be used to ensure the airtightness of the wall bushing. Sealing part for the bushing in a wall giving on the exterior Special tighten adhesive Metal sheet TF6401_E Aereco S.A.
  • Page 30 Recommendations to control the tightness of the wall bushing: Insulation Mastic seal Tube Airtightness of wall-mounted outlet Recommendations to control the tightness of the unit: Airtight spigot BXC exhaust unit with peripheral seal (included) Junction between the unit and the duct by coupling with gasket TF6401_E Aereco S.A.

  • Page 31: Supply And Exhaust Units

    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). TF6401_E Aereco S.A.

  • Page 32: Supply Units

    It is possible to add up to 3 exhaust units connected to the DXA Unit (see: § 4.1.Electrical connection on the DXA Unit). If using this type of installation, make sure the exhaust units have the appropriate supply (requires specific transformer code CAL261EX). TF6401_E Aereco S.A.

  • Page 33: Fresh Air Inlet And Exhaust Air Outlet

    This guarantee is valid for 2 years from the original date of purchase of your appliance, for faults of the appliance, which have been caused by faulty construction. On these conditions, Aereco guarantee the replacement or the supply of the equipment found to be defective after inspection by its after sales service.

  • Page 34: Characteristics

    Heat exchanger Condensate pump (specific to DXA1240) Condensates receiver Siphon (specific to DXA1247) Spigots Fans Control and supply box Bypass Access hatches of the filters F7 filters Bottom cover G4 filter Ducts cover (optional, code : ADX1448) TF6401_E Aereco S.A.
  • Page 35 Condensation management condensate pump exhaust through siphon Temperature of use Installation room frost free: +5°C < T°< +50°C Incoming outdoor fresh air or Extract -5°C < T° < +50°C without preheating -26°C < T° < +50°C with preheating TF6401_E Aereco S.A.
  • Page 36 Inlet duct connections (to DXR or DXA) choice among 3 x ø160 mm Outlet duct connections (to the supply units) 6 x ø75 mm Installation Installation horizontal or vertical Installation room frost free: +5°C < T°< +50°C standard TF6401_E Aereco S.A.
  • Page 37 DXA Unit maximal airflow setting : 80 m 200 m a = 49 dB c = 59 dB 80 m 200 m 140 m 230 m 140 m 230 m b = 54 dB d = 60 dB TF6401_E Aereco S.A.
  • Page 38 38 / 40 DIMENSIONS IN MM : DX HUB 5 DN 160 DN 100 DN 125 DN 100 21,5 DN 160 DN 13 DIMENSIONS IN MM : DX HUB 6 DN 13 DN 75 DN 158 DN 158 TF6401_E Aereco S.A.
  • Page 39 39 / 40 Notes: TF6401_E Aereco S.A.
  • Page 40 Aereco S.A. 62 rue de Lamirault Collégien 77615 MARNE LA VALLEE CEDEX 3 FRANCE www.aereco.com...

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