Aereco DXA 230 EVOLUTION Technische Daten
INSTALLATION AND MAINTENANCE INSTRUCTION (ENGLISH VERSION)
dx system
DXA 230 EVOLUTION
Heat recovery ventilation for cupboard installation
TF6790_A_NOT_DXA230_EVOLUTION Aereco S.A.
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TF6790_A_NOT_DXA230_EVOLUTION Aereco S.A.
1. Introduction 3
1.1. Warnings 3
1.2. Pictograms 3
2. Description 4
2.1. General information 4
2.2. Construction / Dimensions 6
2.3. DXA Assembling 6
3. Installation 7
3.1. Location of the installation 7
3.2. DXA Unit 7
3.2.1. Location 7
3.2.2. Accessibility 8
3.2.3. Fixing of the DXA Unit 8
3.2.4. Duct connections to the DXA Unit 11
3.2.5. Evacuation of condensates 11
3.3. Defrosting (optional) 12
3.4. Smart interface 13
3.5. 2I2O module 13
3.6. Special care for the ductwork 14
3.7. Fire protection 14
4. Electrical connections 15
4.1. Electrical connection on the DXA Unit 16
4.2. Electrical connection of the defrosting 17
4.3. Electrical connection of the condensate pump 17
5. Starting and settings of the DXA 18
5.1. Ways to access to the interface 18
5.2. DXA Home page 19
5.3. First start 21
5.4. How to bring up to date the versioning 21
6. Maintenance 22
6.1. Regular maintenance of the installation 22
6.2. Power supply and motor material protections 22
6.3. Filters 23
7. Troubleshooting 25
8. Acceptance of works 26
8.1. Visual inspection 26
8.2. Measurements 26
9. Specific recommendations for airtightness and insulation of the installation 27
9.1. Insulation of the installation 28
9.2. Airtightness of the installation 28
10. Supply and exhaust units 30
10.1. Supply grilles 31
10.2. Exhaust BXC units 31
10.3. Fresh air inlet and exhaust air outlet 32
11. Environmental concerns 32
12. Warranty 32
13. Conformity and standard 32
14. Characteristics 33
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1.1. WARNINGS
PLEASE READ THE FOLLOWING INSTRUCTIONS BEFORE THE
INSTALLATION:
In case of non-compliance with advice and warnings contained
in this manual, the manufacturer can not be considered
responsible for damages to persons or property.
The manual describes how to install, use and maintain correctly
the appliance. The only way to ensure the eciency and longevity
of the product is to comply with these requirements.
Do not use this appliance for any applications for which it is not
intended.
The system must be installed by experienced contractors, trained
in the specificities of the process and having the necessary skills
in aeraulics and electricity.
The use of gloves to carry on the installation is recommended.
After unpacking the appliance, make sure it is not damaged. Any
functional default must be reported to your reseller.
The use of an electrical appliance implies the following
fundamental rules:
· Do not touch the appliance with a wet or damp body (hands, feet,
etc.).
· This appliance can be used by children 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 technician according to the
manufacturer’s instructions and in compliance with the
characteristics listed on the nameplate of the unit.
· The Appliance shall be installed in accordance with national
wiring regulation (IEC60335-2-40).
· Before carrying out any operation on the appliance, unplug or
disconnect it from the power supply, and ensure it can not be
accidentally restored.
· 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.
1.2. PICTOGRAMS
Warnings
Risks of:
· Appliance damage
· Bad eciency and longevity of the appliance.
Risk of electric shock.
Electrical component: ground.
1. INTRODUCTION
This document presents the installation and maintenance schemes for the whole system.
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Specific working of the DXA EVOLUTION version
The EVOLUTION version corresponds to the best HRV solution in terms of
energy savings. In this version, the DXSystem adapts exhaust airflows
room-by-room based on specific needs, while balancing supply and
exhaust. The exhaust airflows are controlled by humidity sensors or
presence detectors or other activators in the exhaust units.
2. DESCRIPTION
2.1. GENERAL INFORMATION
The DXSystem is a range of smart heat recovery ventilation systems that continually supply pollen-free and dust-free preheated fresh air to living areas,
ensuring a comfortable feel-good climate.
The DXA EVOLUTION is a heat recovery unit with demand-controlled airflows for vertical installation (on the wall) in the apartment or in the house, from
2to 5 main rooms, and from 1 to 5 technical rooms (kitchen, bathroom, others wet rooms). The apartment is limited to 2 floors (1 ground floor and 1 floor
maximum), and has a maximum surface of 210m². This HRVsystem can also be used in oces, hostels, etc., if the required airflow is in accordance
with the one oered by the system.
General working of the DX System, EVOLUTION Version
The DXSystem is comprised of a heat recovery unit (DXA Unit 1 ) connected to exhaust units which control airflows. The counter-flow heat exchanger,
integrated into the main unit, ensures the recovery and transfer of most of the energy from the exhaust air to the supply air, thus limiting the energy required
to heat the fresh air.
Airflows are automatically controlled according to the needs of each dwelling’s room (room-by-room DCV): Outdoor filtered air is supplied 3in the
bedrooms and in the living room. Stale air is extracted 5from the kitchen, bathroom and WC. On the exhaust side, the BXC units adjust automatically
the airflow, according to parameters read by various sensors: humidity (used in the kitchen, in the bathroom and in WC), presence (can be used in WC).
Versions with switch, presence, remote, CO2or VOC sensors can also be used for exhaust units.
According to the size of the dwelling, the exhaust fan motor provides a constant pressure in the exhaust ductwork that can easily be set from the interface
(80 Pa, 100 Pa, 110 Pa or 120 Pa).
At all times, total supply airflows and total exhaust airflows are measured through pressure sensors placed in the DXA unit. The use of electronic pressure
sensors allows to calculate with a very high accuracy supply and exhaust airflows without influence of clogging filters or ductwork pressure drops. So, a
dedicated micro-controller drives the two fan motors in such a way that supply and exhaust massflows are balanced according to the desired airflow setting
point (80 m3/h, 140 m3/h, 200 m3/h or 230 m3/h).
When the outside is mild enough, the bypass, located in the DXA unit 1 , automatically allows to the supply air to be filtered and then to be supplied in
the dwelling without going through the heat exchanger, it can also be used in free-cooling mode to provide night cooling in summer.
The DXA EVOLUTION allows 4 specific regulation modes :
- Absence mode. This mode runs a 40 m3/h airflow ventilation for a
duration the customer may choose within a list of 1, 2, 3, 6, 14 or 30
days.
- Overventilation mode. This mode increase ventilation airflows staying
on the bypass rules. The customer may choose the over ventilation
airflows within a list of 140, 200, 230 or 250 m3/h for a duration he can
also choose (1, 2, 3, 6, 12 or 24 hours).
- Free cooling mode or Free warming mode. This mode is an over
ventilation mode enable only if temperature conditions allow to refresh or
to warm the dwelling.
- Stop mode. This mode allows to stop the fan motors. This mode may be
useful, for example not to clog the filters in case of works in the dwelling.
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2I2O
Modbus
Modbus
2 electric
wires
1
3
3
3
3
4
4
4
6
7
7
8
2
55
9
Typical apartment equipped with the DXA Unit, Reference version
Distribution box (not specific)
2
Passive distribution box for supply airflows (may be replaced with T connections
DXA Unit
1
Heat recovery unit with balanced demand controlled airflows
Preheater + 2I2O Module
6
4Manual registrer for balancing
Smart pannel interface
9
(Optional)
Galvanised steel body with built-in resistance
(optional)
10 mA max
5V DC
OUT 1
OUT 2
IN 2
IN 1
0 Volt
2I2O MODULE
Power ON
Modbus trac
Modbus connection
SDC 100
3
Supply unit
Air intake
and outlet grilles
7
BXC
5
Exhaust units (various sensors)
RJ 45 cables
Acoustic attenuation
8
List of components
supply aiflows
exhaust aiflows
technical room
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Dimensions of DXA Unit (mm)
2.2. CONSTRUCTION / DIMENSIONS
DXA Unit 230m3/h– Heat recovery unit
See the characteristics of the DXA Unit system on page 33
· Envelope in EPP.
· 2 low energy consumption fans driven by EC (electronic commutation) motors (supply air and
exhaust 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.
· Very high eciency heat exchanger with plastic plates, washable.
· Intelligent electronic control unit of the heat recovery, with integrated control interface.
· Integrated bypass and free-cooling automatically controlled.
ø160 ø160 88
248 151 155
1189
240
R2,50
80
1184
130
545
40
482
545
138 118
151
R80
248 155
554
R80
101
2.3. DXA ASSEMBLING
When delivered, the DXA Unit is furnished with 4 lipseals spigots.
Before removing the 4 plastic caps, pull out carefully the staples with
a screwdriver to not dammage the 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
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wall
(side view)
wall (top view)
3. INSTALLATION
3.1. LOCATION OF THE INSTALLATION
The unit must be installed into the heated space, in parts of the dwelling relatively
insensitive to noise, not in the unheated space (attic, etc.). Upper and lower
temperature limits for the main unit are 5°C and 50°C
Ductwork should be installed in the heated space. If not, they must be insulated
with 50mm minimum of glass wool (or equivalent). The non compliance with these
conditions leads to the degradation of the heat recovery performance.
Features and uses
DXA Unit
Max. altitude of the product installation 2000 m
Temperature range of the installation place 5°C – 50°C
Humidity range of the installation place 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 wall where you plan to install the DXA
Unit.
· Weight of DXA Unit = 23 kg
The DXA Unit must be positioned exactly vertically (max 1° tolerance).
The non compliance to this requirement may lead to serious problems of condensate
evacuation.
Positionning of the DXA Unit
D = 5 mm
D = 5 mm
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3.2.2. ACCESSIBILITY
The DXA Unit 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 > 2 cm
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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.
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3.2.4. DUCT CONNECTIONS TO THE DXA UNIT
The connections to the DXA Unit are all in Ø160 mm. Labels on the unit identify the 4 ducts to be
connected (fresh air, used air, supply air, exhaust air). Outdoor fresh air, used air and Supply
fresh air ducts must be insulated.
Fresh air
(outdoor to indoor)
Used air
(indoor to outdoor)
Fresh air supply
(outdoor to indoor)
Exhaust air
(indoor to outdoor)
DXA top view
Each supply unit can be connected to a distribution box by a Ø100mm for rigid duct or
by a Ø75mm duct for semi-rigid duct. Each semi-rigid duct cannot aord an airflow
bigger than 30m3/h.
1Ø100 or Ø75 mm
2Ø100 mm or Ø125 mm
3Ø160 mm
4Ø160 + 50mm insulation
All supply grilles have to be balanced to
reach the required airflow in each main
rooms (living room, bedrooms....). This may
be done by the use of manual registers,
blocks of foam, or grilles with nuts inside
allowing to adjust room by room supply
airflows in each main room.
Duct diameters and recommendation concerning the type of ducts
1
1
1
1
2
2
3
4
4
Supply grille
Supply grille
Supply grille
Supply grille
to exhaust air outlet
to fresh air inlet
BXC Exhaust unit
BXC Exhaust unit
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