aerauliqa QR550ABP User manual

1
G
Read this manual carefully before using the product and keep it in a safe place for reference as
necessary.
This product was constructed up to standard and in compliance with regulations relating to
electrical equipment and must be installed by technically qualified personnel.
The manufacturer assumes no responsibility for damage to persons or property resulting from
failure to observe the instructions contained in this manual.
1 Index 1
2 Precautions 2
3 Product information 2
3.1 General 2
3.2 Dimensions and Weight 3
3.3 Connections 3
3.4 Space required 3
3.5 Rating label 4
4 Transport and Storage 4
5 Installation 4
5.1 Unpacking 4
5.2 Where/how to install 4
5.3 Installation 5
5.4 Electric Connections 7
6 Commissioning 8
6.1 Setting Fan speed 8
6.2 Before Starting the System 9
7 Operation 10
7.1 User Menu on CTRL-DSP 11
7.2 Installer Menu on CTRL-DSP 13
7.3 Additional functionalities 16
8 Maintenance and service 17
8.1 Components list 17
8.2 Description of Components 17
8.3 Maintenance 18
8.4 Service 18
8.5 Trouble shooting 20
1 INDEX
Installation Manual (installer & user)
QR550ABP
Heat Recovery Ventilation Unit

2
2 PRECAUTIONS
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or electrical work!
WARNING
The installation and service of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and
regulations.
TRANSPORT AND STORAGE
• Do not leave the device exposed to atmospheric agents (rain, sun, snow, etc.).
• Duct connections/duct ends must be covered during storage and installation
INSTALLATION
• After removing the product from its packaging, verify its conditions. Do not leave packaging within the reach of children or people with disabilities.
• Beware of sharp edges. Use protective gloves.
• The device should not be used as an activator for water heaters, stoves, etc., nor should it discharge into hot air/fume vent ducts deriving from any type of
combustion unit or tumble dryer. It must expel air outside via its own special duct.
• If the environment in which the product is installed also houses a fuel-operating device (water heater, methane stove etc., that is not a “sealed chamber”
type), it is essential to ensure adequate air intake, to ensure good combustion and proper equipment operation.
• The electrical system to which the device is connected must comply with local regulations.
• Before connecting the product to the power supply or the power outlet, ensure that:
- the data plate (voltage and frequency) correspond to those of the electrical mains
- the electrical power supply/socket is adequate for maximum device power
• For installation an omnipolar switch should be incorporated in the xed wiring, in accordance with the wiring rules, to provide a full disconnection under
overvoltage category III conditions (contact opening distance equal to or greater than 3mm).
USE
• The device should not be used for applications other than those specied in this manual.
• The device is not intended for use by persons (including children) with reduced physical, sensory or mental capacities or those with a lack of experience and
knowledge, unless they have been given supervision or instruction concerning use of the device from a person responsible for their safety. Children should
be supervised to ensure that they do not play with the device.
• Do not touch the appliance with wet or damp hands/feet.
• The device is designed to extract clean air only, i.e. without grease, soot, chemical or corrosive agents, or ammable or explosive mixtures.
• Do not use the product in the presence of inammable vapours, such as alcohol, insecticides, gasoline, etc.
• The system should operate continuously, and only be stopped for maintenance/service.
• Do not obstruct ducts or grilles to ensure optimum air passage.
• Do not immerse the device or its parts in water or other liquids.
• Operating temperature: 0°C up to +40°C.
SERVICE
• Although the mains supply to the unit has been disconnected there is still risk for injury due to rotating parts that have not come to a complete standstill.
• Beware of sharp edges. Use protective gloves.
• Use original spare parts only for repairs.
3 PRODUCT INFORMATION
3.1 General
This is the Installation Manual of QR550ABP heat recovery ventilation unit.
This manual consists of basic information and recommendations concerning installation, commissioning, use and service operations to ensure a proper
fail-free operation of the unit.
The key to proper, safe and smooth operation of the unit is to read this manual thoroughly, use the unit according to given guidelines and follow all safety
requirements.
The QR550ABP is supplied with its CTRL-DSP remote multifunction control panel as standard. The package also includes 2 condensation elbows and 2 plugs
for the water drainage.
WARNING
If any abnormality in operation is detected, disconnect the device from the mains supply and contact a qualified technician immediately.

3
Ø155
Ø148
778
861
799 62
144 490 144
180
247 123
279 220
549
279
Ø155
Ø148
778
861
799 62
144 490 144
180
247 123
279 220
549
279
Weight Kg
44
B
A
D
C
778
490 144144
279 279
220
247 180
A
B
C
D
E
F
Ø155
Ø148
778
861
799 62
144 490 144
180
247 123
279 220
549
279
ø155
ø148
799
861
62
549
123
3.2 Dimensions (mm) and Weight
3.3 Connections
Fig. 3.a Connections in LEFT orientation
Intake air from outside
Exhaust air to outside
Supply air to inside
Extract air from inside
Winter condensation drainage
Summer condensation drainage
A
B
D
C
F
E
LEFT Connections from and to outside are set on the left side of the unit front view DEFAULT
RIGHT Connections from and to outside are set on the right side of the unit front view
The factory setting is LEFT.

4
3.5 Rating label
Fig.3.c Rating label
D
C
B
A
F
E
3.4 Space required
Make sure that enough space is left around the unit to allow easy maintenance (access to lters, terminal box and removal of the side and front inspection panels).
To set the RIGHT orientation of the machine:
• Modify the orientation on the CTRL-DSP (point 7.2 - Installer menu: 3 Machine Orientation).
• Move the F7 lter from the left to the right side.
• Replace the ducting connection label on the top of the casing and the water drainage label on the bottom of the casing with those supplied with this
installation manual.
Fig. 3.b Connections in RIGHT orientation
Intake air from outside
Exhaust air to outside
Supply air to inside
Extract air from inside
Winter condensation drainage
Summer condensation drainage
A
B
D
C
F
E
4 TRANSPORT AND STORAGE
The appliance is delivered in one carton box.
The appliance should be stored and transported in such a way that it is protected against physical damage that can harm spigots, casing, display etc.
It should be covered so that dust, rain and snow cannot enter and damage the unit and its components.
5 INSTALLATION
This section describes how to install the unit correctly.
The unit must be installed according to these instructions.
5.1 Unpacking
Verify that the unit (and eventual accessories) delivered is according to order before starting the installation. Any discrepancies from the ordered equipment
must be reported to the supplier.
5.2 Where/how to install
• All QR units are meant for indoor installation in a heated space.
• Mount the unit on flat surface (wall).
• The unit must always be installed vertically.
• It’s important that the unit is completely leveled before it is put into operation.
• Place the unit preferably in a separate room (e.g. storage, laundry room or similar).
• When choosing the location it should be kept in mind that the unit requires maintenance regularly and that the inspection doors should be easily accessible.
WARNING
Make sure that specic warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
WARNING
Make sure that specic warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!

5
Fig. 5.a.b
Fig. 5.c
Fig. 5.d
H=min. 60mm
Fig. 5.fFig. 5.e
5.3 Installation
The unit must be installed in the following position.
It is important that the unit is vertical in order for the condensation drainage to work properly.
5.a Prepare the surface where the unit is to be mounted. Make sure that the surface is at, leveled and that it supports the weight of the unit. Perform the
installation in accordance with local rules and regulations.
5.b Use the wall xing bracket as template to indicate where to drill the holes in the wall: make sure it is at spirit level. Use appropriate screws and wall plugs
(not supplied) to x the wall xing bracket.
5.c Hook the unit at its bracket and fix it by means of the safety screw.
5.d Connect the supplied condensation elbow(s) to the drainage hole(s) in the opening at the bottom of the unit: in case close and seal the non-used hole
with the 2 supplied plugs (one each side of the hole). Make sure of water and air tightness of all connections. It is necessary to use a U-bend (or similar)
in the condensation drainage pipe. The water drainage connections can be made either through the holes at the bottom side of the casing or through the
opening at the rear side of the casing.
5.e Connect the unit to the duct system. Make sure that all necessary accessories are used to create a functional ventilation solution.
5.f Connect the unit electrically according to point 5.4. Check that it starts up correctly.
• Leave free space for opening the removable panels and for removal of the main components (see 3.4).
• The outdoor air grilles if possible be put in the northern or eastern side of the building and away from other exhaust outlets like kitchen fan exhausts or
laundry room outlets.
Spirit level

6
5.4 Electric Connections
The unit must be earthed.
The QR550ABP is wired internally from factory.
To connect the the CTRL-DSP to the mother board use a 4pole twisted-pair cable: max length 30m.
Figures below show the wiring diagram.
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or electrical work!
WARNING
The installation and service of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and
regulations.
SLAVE input
1-10V
J2 jumper for SLAVE mode
AC power supply
Heat output
(max 250Vac 5A)
Dehumidifier output
(max 250Vac 5A)
Boost momentary
switch (BST)
IAQ input
(Air Quality
i.e. SEN-CO2)
HY input
(i.e.SEN-HY)
CTRL-DSP
Inputs/commands
N°1 AC supply connector
N°3 on/off inputs (volt-free contacts), two for ambient sensors (named HY, IAQ) and one for boost momentary switch (named BST).
N°1 1-10V analog input (named SLAVE).
N°1 jumper for SLAVE MODE selection.
N°1 4-pole connector for CTRL-DSP (RS485 plus 12Vdc supply).
Outputs
N°1 on/off output for pre-heating/post-heating (relay contact – 250Vac 5A).
N°1 on/off output for dehumidication (relay contact – 250Vac 5A).
Fig. 5.g Electrical connections on the motherboard fitted in the terminal box.
+12V
A B GND
AB
1
2
V
G
N
D

7
6 COMMISSIONING
6.1 Setting Fan speed
The speed of the unit can be adjusted during installation according to required ventilation rate.
Figure 6.a below shows performance curves (for supply air and extract air) at different settings of the 0-10V signal to the motors. Airow and consumption
refer to one single motor.
Table 6.b indicates the sound level at the different speed.
Fig. 6.a Intake curve according to Reg.
1253/2014 (ErP). Product tested without
filter F7.
Static Pressure - Pa
Airow - m3/h
Table 6.b Thermal efficiency of the heat exchanger and average production of condensation water. Data supplied by the manufacturer of the heat exchanger.
Definitiva QR550
T R. H. T R. H. ᶯH2OᶯH2OᶯH2OᶯH2OᶯH2O
°C % °C % % kg/h % kg/h % kg/h % kg/h % kg/h
-18 60 20 30 95,4 0,28 91,8 0,53 88,7 0,75 85,9 0,95 83,2 1,12
-18 70 20 40 95,9 0,4 92,8 0,77 90,1 1,11 87,7 1,42 85,5 1,72
-18 80 20 50 96,4 0,5 93,7 0,99 91,4 1,44 89,3 1,87 87,4 2,29
-10 60 20 30 95,2 0,18 91,3 0,32 87,8 0,44 84,7 0,52 81,7 0,59
-10 70 20 40 95,8 0,29 92,5 0,54 89,6 0,77 87 0,96 84,5 1,14
-10 80 20 50 96,3 0,39 93,5 0,74 91,1 1,07 88,9 1,39 86,9 1,67
0 50 20 30 94,2 0,02 89,3 0 85,1 0 81,5 0 78,2 0
0 60 20 40 95 0,11 91 0,18 87,3 0,23 83,8 0,24 80,4 0,23
0 70 20 50 95,8 0,2 92,5 0,36 89,5 0,5 86,8 0,62 84,2 0,72
10 50 20 40 94 0 89,3 0 85,1 0 81,5 0 78,2 0
10 60 20 50 94 0 89,3 0 85,1 0 81,5 0 78,2 0
10 70 20 60 94,8 0,04 90,4 0,05 86,1 0,05 82 0,03 78,2 0
35 60 26 50 94,1 0 89,4 0 85,4 0 81,8 0 78,5 0
35 70 26 55 95,8 0,08 92,3 0,14 88,9 0,18 85,7 0,2 82,4 0,2
35 80 26 60 97,2 0,17 95,2 0,32 93,4 0,47 91,7 0,6 90,1 0,73
40 60 26 50 96 0,14 92,8 0,26 89,7 0,35 86,8 0,41 83,9 0,44
40 70 26 55 97,2 0,25 95,1 0,49 93,2 0,7 91,4 0,9 89,7 1,09
40 80 26 60 98 0,35 96,7 0,69 95,6 1,02 94,5 1,34 93,6 1,65
500 m³/hESTERNO INTERNO 100 m³/h 200 m³/h 300 m³/h 400 m³/h
Pagina 1
EXTERNAL INTERNAL
Curve Speed
%
W
max
m3/h
max
A (min) 23 10 94
B 32 24 170
C 46 68 289
D 60 150 403
E 75 286 472
F 90 311 513
G (max) 100 333 550
Working point W m3/h SPI (W/m3/h) ɳt %(1)
I 8,6 54 0,1585 93
II 10,7 76 0,1413 93
III 13,9 97 0,1431 93
IV 19,3 119 0,1621 92
V 25,5 140 0,1818 91
VI 32,2 162 0,1990 91
VII 46,1 191 0,2414 90
VIII 63,4 220 0,2885 89
IX 84,5 248 0,3402 89
(1)
Termal efficiency of the unit.
0
50
100
150
200
250
300
350
400
450
500
550
600
0 50 100 150 200 250 300 350 400 450 500 550 600
I
II III
IV
V
VI
VII
VIII
IX
A
B
C
D
E
FG

8
Table 6.c Sound level
Preliminary data.
dBA figures are average spherical free-field, for comparitive use only.
6.2 Before Starting the System
When the installation is nished , check that:
• Filters are mounted correctly
• The unit is installed in accordance with the instructions
• The unit is correctly wired
• Eventual outdoor and exhaust air dampers and silencers are installed and that the duct system is correctly connected to the unit
• All ducts are sufciently insulated and installed according to local rules and regulations
• Outdoor air intake is positioned with sufcient distance to pollution sources (kitchen ventilator exhaust, central vacuum system exhaust or similar)
• The unit is correctly set and commissioned.
100%
Lw dB - SOUND POWER OCTAVE BAND Lp dB(A)
63 125 250 500 1 K 2 K 4 K 8K Tot @3m
Intake 83 65 70 73 62 58 53 47 84 51
Supply 81 65 65 66 57 51 42 33 81 45
Extract 80 63 66 68 60 54 45 34 78 47
Exhaust 78 65 70 71 62 59 53 45 80 50
Breakout 81 69 67 69 62 56 48 36 82 48
80%
Lw dB - SOUND POWER OCTAVE BAND Lp dB(A)
63 125 250 500 1 K 2 K 4 K 8K Tot @3m
Intake 73 61 67 69 59 56 50 43 75 47
Supply 72 61 63 65 56 50 41 31 74 43
Extract 73 60 63 65 57 51 42 31 74 44
Exhaust 73 61 66 67 58 55 49 41 75 46
Breakout 71 64 62 67 59 53 45 33 74 45
60%
Lw dB - SOUND POWER OCTAVE BAND Lp dB(A)
63 125 250 500 1 K 2 K 4 K 8K Tot @3m
Intake 65 61 68 67 58 56 49 41 72 46
Supply 63 59 63 64 55 49 40 29 69 42
Extract 64 59 63 63 56 51 41 30 69 42
Exhaust 64 60 66 67 57 54 48 41 71 45
Breakout 59 64 63 65 57 51 43 31 70 44
40%
Lw dB - SOUND POWER OCTAVE BAND Lp dB(A)
63 125 250 500 1 K 2 K 4 K 8K Tot @3m
Intake 55 55 67 55 49 47 40 31 68 39
Supply 53 53 62 52 47 41 32 22 63 35
Extract 58 52 60 51 47 42 32 22 63 34
Exhaust 55 54 66 55 49 47 40 31 67 39
Breakout 54 53 59 52 48 43 33 23 62 34

9
A
B
D
C
T12 T21 T11 T22
EXTRACT
SUPPLY
INTAKE
EXHAUST
7 OPERATION
WARNING
Make sure that specic warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
Fig. 7.a Temperature probes
in LEFT orientation
Intake air from outside
Exhaust air to outside
Supply air to inside
Extract air from inside
A
B
D
C
R
EGH
J
K
Q
PN
E
G
DATE: shows the current date
MODE: shows the operation mode
SPEED: shows the selected speed
TIME: shows the time
FILTER ALARM: shows that lters need to be maintained/replaced
BOOST: shows that BOOST speed is activated
BOOST KEY: to manually activate the BOOST speed
FILTER RESET KEY: to reset the Filter Alarm
ESC key: to exit and go back to the previous menu
OK key: to enter the selected menu
to go DOWN with the menu selection
to go UP with the menu selection
to power off the ventilation unit
shows ERROR ALARM - see point 7.3 to check the type of error
this symbol shows if the bypass is active
this symbol shows that ANTI-FROST is active
this symbol shows that the IAQ input is activated, i.e.CO2
this symbol shows that the HY input is activated.
this symbol shows that NIGHT MODE is activated
this symbol shows that Heating output is activated
H
J
K
N
O
P
Q
R
S
U
X
Some operations can be selected either from the CTRL-DSP buttons or from the menu
When powered on, the CTRL-DSP displays as follows:
W
VUTS X
OML
F
I
F
I
L
M
T
V
W
Fig. 7.b CTRL-DSP
In case of RIGHT orientation, follows instructions as per point 3.3 - Fig. 3.b in order to get the temperature probes operate correctly.

10
7.1 User Menu on CTRL-DSP
To enter the user menu press OK or ESC.
To exit the user menu press ESC or wait for about 60 seconds.
Fig. 7.c CTRL-DSP operation screen
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
Use or to select the menu.
Press OK to enter.
Mode selection allows the choice among 3V (three speed), OFF and HOLIDAY mode.
Press OK to enter.
Use or to choose the mode.
Press OK to select.
Press ESC to go back to the previous menu.
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
Mode selection
3V
3V mode (DEFAULT)
3V is ashing: press OK to select.
Once powered on, the unit runs at speed 1.
Press ESC or wait for about 60 sec to go back to the operation screen (Fig. 7.c).
In case of activation of either HY or IAQ sensor inputs (OR logic), the unit speed increases by 15%, and
the sensor related icon or is displayed. Once all on/off sensors inputs are deactivated, the unit
reverts back to selected speed.
In case the user has activated the NIGHT MODE , during nocturnal hours (from 8:00 p.m. to 8:00 a.m
- xed period of time) the sensor logic described above is ignored (the sensors have no effect and the unit
runs at selected speed).
Mode selection
Holiday
HOLIDAY mode
Holiday is ashing: press OK to select.
The unit works at HOLIDAY speed.
Press ESC or wait for about 60 sec to go back to the operation screen.
Mode selection
OFF
OFF mode
OFF is ashing: press OK to select.
The fans are switched off (the power supply to the motors is interrupted).
Press ESC or wait for about 60 sec to go back to the operation screen: OFF is displayed.
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
It allows to select the Boost speed.
Press OK to select.
Choice NO or YES using or .
Press OK to select.
Boost speed can be selected only if the Mode selection is 3V or HOLIDAY.
Boost function can be activated in these ways:
- In the user menu, with the Boost function
- via the BOOST button on the CTRL-DSP (Fig.7.b - )
- Using a momentary switch connected to the BST ON/OFF (only if no dehumidier is installed) - Fig.5.g.
When Boost is active, the icon is displayed on the LCD and the unit runs at 100% speed for the
duration set in the “Boost duration” menu; afterwards the unit reverts to selected speed.
Boost can be deactivated by holding BOOST button on the CTRL-DSP for 2 seconds.
K

11
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
It allows to set the duration of the boost speed.
Press OK to select.
The factory setting (DEFAULT) is 15’.
Time options are 15’ - 30’ - 45’ - 60’.
Time is ashing: use increase the time and to decrease.
Press OK to select.
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
It allows to reset the filter alarm after maintenance/replacement.
It can be selected only if the FILTER icon is displayed (Fig.7.b - ).
Press OK to select.
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
It allows to deactivate the automatic operation of the speed increased via sensors during nocturnal hours.
It operates from 8:00 p.m. to 8:00 a.m (xed period of time). The sensors have no effect and the unit runs
at the selected continuous speed.
OFF is ashing: use or to chance to ON.
Press OK to select.
The factory setting (DEFAULT) is OFF.
User menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Installer menu
It allows to select the Installer menu.
Press OK to enter the Installer menu.
Press ESC to go back to the previous menu.
Enter
installer menu?
I
7.2 Installer Menu on CTRL-DSP
The Installer menu can be selected either by selecting point 6) in the User menu or by holding OK+ESC for about 7 seconds.
To exit the installer menu press ESC or wait for about 60 seconds.
Installer menu
1 Language
2 Date/Time
3 Machine orientation
4 Bypass settings
5 Heating
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter
11 Filter Alarm interval
12 Working Hours Counter
13 Save settings
14 Load settings
15 Restore Default Settings
16 Contrast
17 Debug page
Use or to select the menu.
NOTE:
Menu 6 “Heating Threshold” displays only if Menu 5 “Heating” is set on PRE or POST.

12
It allows to select the language among English, Italiano, Nederlands, Français, Deutsch, Espanol.
Press OK to enter.
Language is ashing: use or to choose.
Press OK to select.
The factory setting (DEFAULT) is English.
It allows to set the date and the time
Press OK to enter.
Use or to choose.
Press OK for setting and again to confirm.
Press ESC to go back to the previous menu.
Installer menu
1 Language
2 Date/Time
3 Machine orientation
4 Bypass settings
5 Heating
Installer menu
1 Language
2 Date/Time
3 Machine orientation
4 Bypass settings
5 Heating
Installer menu
1 Language
2 Date/Time
3 Machine orientation
4 Bypass settings
5 Heating
It allows to select the orientation of the duct connections from and to outside (LEFT or RIGHT - paragraph
3.3).
Press OK to enter.
Use or to choose.
Press OK for setting.
The factory setting (DEFAULT) is LEFT.
Installer menu
1 Language
2 Date/Time
3 Machine orientation
4 Bypass settings
5 Heating
It allows to set the Bypass operation parameters
Press OK to enter.
Use or  to choose “Desired Temperature”, “Tmax Free Heating”, “Tmin Free Cooling”
For denitions see “Bypass” (paragraph 7.3)
Press OK to select.
The setting ranges are:
Desired Temperature: 15°C ÷ 30°C
Tmax Free Heating: 25°C ÷ 30°C
Tmin Free Cooling: 15°C ÷ 20°C
Use or to increase or decrease the temperature.
Press OK to select.
Press ESC to go back to the previous menu.
The factory settings (DEFAULT) are:
Desired Temperature: 23°C
Tmax Free Heating: 28°C
Tmin Free Cooling: 18°C
Installer menu
1 Language
2 Date/Time
3 Machine orientation
4 Bypass settings
5 Heating
To be selected only in case an external heating element (not supplied) is present.
Press OK to enter.
Use or to choose NO/PRE/POST.
Press OK to select.
The factory setting (DEFAULT) is NO.
NO: HEAT output (Fig. 5.g) is never activated
PRE: the heating element is intalled at “intake air side” (Fig.7.a - ).
HEAT output (Fig. 5.g) is activated and heating icon displays on LCD when
T21 < HEATING THRESHOLD (Fig.7.a)
POST: the heating element is intalled at “supply air side” (Fig.7.a - ).
HEAT output (Fig. 5.g) is activated and heating icon displays on LCD when
T11 < HEATING THRESHOLD (Fig.7.a)
A
C

13
Installer menu
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter
This option displays only if “Heating” is set on PRE or POST.
It allows to set the heating threshold in case of PRE or POST heating.
Press OK to enter.
Use or to set the temperature.
Press OK to select.
Setting ranges:
PRE: -20°C ÷ 0°C
POST: +15°C ÷ +25°C
The factory settings (DEFAULT) are:
PRE:-10°C
POST:+20°C
Installer menu
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter
To be selected only in case an external dehumidier (not supplied) is present.
Press OK to enter.
Use or to choose NO or YES.
The factory setting (DEFAULT) is NO.
The DH relay output is activated when the HY input is activated (Fig.5.g) and the icon is displayed.
Note: in case dehumidier is installed, the BST input (Fig.5.g) is used as alarm output.
It allows to adjust the various speeds.
Press OK to enter.
Use or to choose speed 1, speed 2, speed 3 or Holiday.
Press OK to select.
The setting ranges are:
speed 1: 10% ÷ 80%
speed 2: 20% ÷ 90%
speed 3: 60% ÷ 100%
Holiday: 10% ÷ 40%
Use or to increase or decrease the speed percentage.
Press OK to select.
Press ESC to go back to the previous menu.
The factory settings (DEFAULT) are:
speed 1: 40%
speed 2: 70%
speed 3: 100%
Holiday: 20%
Installer menu
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter
Installer menu
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter
It allows to adjust the balancing of the two airows.
Press OK to enter.
“Supply airow” is highlighted.
Press OK to enter.
The setting range is: -20% ÷ +20%
Use or  to adjust supply airow against extract airow
Press OK to select.
Press ESC to go back to the previous menu.
The factory settings (DEFAULT) is 0%
To be selected only in case an F7 lter is installed at the supply air side (Fig.7.a)
Press OK to enter.
Use or  to choose “Not installed” or “Installed”.
Press OK to select.
The factory setting (DEFAULT) is “Installed”.
Installer menu
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter

14
Installer menu
11 Filter Alarm interval
12 Working Hours Counter
13 Save settings
14 Load settings
15 Restore Default Settings
It allows to set the Filter Alarm period: the system has a timer which activates the “Filter” warning on the
LCD at regular intervals.
Press OK to enter.
Use or to choose among 2-3-6 months or OFF.
Press OK to select.
The factory setting (DEFAULT) is 3 months if F7 lter is “Installed” or 6 months if F7 lter is “Not installed”
Installer menu
11 Filter Alarm interval
12 Working Hours Counter
13 Save settings
14 Load settings
15 Restore Default Settings
The system keeps trace of the actual working hours of the unit. This value cannot be changed. Data is
saved both on the motherboard and on the control panel CTRL-DSP, to be safe in case of fault.
Press OK to enter.
Press OK or ESC to go back to the previous menu.
It allows to save the setting of the #1 (prototype) installation in the internal memory of the CTRL-DSP to be
loaded afterwards in other units.
Press OK to enter.
Use or to choose the position where to save hte setting. Up to 8 differrent settings can be saved.
Press OK to select.
Press OK to confirm.
Press ESC to go back to the previous menu.
It allows to load the saved setting on the next unit.
Press OK to enter.
Use or to choose the desiderd saved setting.
Press OK to select.
Press OK to confirm.
Press ESC to go back to the previous menu.
It allows to restore all the factory settings (DEFAULT).
Press OK to enter.
Press OK to confirm.
It allows to set the LCD contrast.
Press OK to enter.
Use or to increase or decrease the contrast.
Press OK to confirm.
It shows the internal functional parameters of the unit.
Press OK to enter.
Press ESC to go back to the previous menu.
Installer menu
11 Filter Alarm interval
12 Working Hours Counter
13 Save settings
14 Load settings
15 Restore Default Settings
Installer menu
11 Filter Alarm interval
12 Working Hours Counter
13 Save settings
14 Load settings
15 Restore Default Settings
Installer menu
11 Filter Alarm interval
12 Working Hours Counter
13 Save settings
14 Load settings
15 Restore Default Settings
Installer menu
16 Contrast
17 Debug page
Installer menu
16 Contrast
17 Debug page
7.3 Additional functionalities
SLAVE MODE
In case the SLAVE jumper (Fig.5.g - JP2) is short-circuited before powering the unit, the unit works in SLAVE MODE; the operating speed is determined by the
1-10V signal received at the SLAVE input. All the operating logics described in the Mode selection are ignored (paragraph 7.1).
BYPASS
The QR550ABP is equipped with a physical bypass which allows to mitigate the heat exchange when the indoor and outdoor temperature combinations are
such that the heat exchange is not recommended. In this case the Bypass icon is activated on the LCD.
The parameters “Desired Temperature”, “Tmax Free Heating”, “Tmin Free Cooling” (Installer Menu 4) are to be meant as follows:
“Desired Temperature” is the ambient temperature desired by the user

15
“Tmax Free Heating” is the maximum outside temperature allowed for free heating operation
“Tmin Free Cooling” is the minimum outside temperature allowed for free cooling operation
FAULT HANDLING
Code error description (Fig.7.b - )
E000 no RS485 connection
E001 no rotation of the exhaust air fan (Fig.8.a - )
E002 no rotation of the intake air fan (Fig.8.a - )
E003 thermistor T11 broken/disconnected (Fig.7.a)
E004 thermistor T12 broken/disconnected (Fig.7.a)
E005 thermistor T21 broken/disconnected (Fig.7.a)
E006 thermistor T22 broken/disconnected (Fig.7.a)
E007 dehumidier alarm (BST INPUT)
E008 CTRL-DSP internal error
NOTE: the controller board veries the presence of CTRL-DSP periodically; if CTRL-DSP is absent (or faulty), the unit works in 3V mode at speed 1 (DEFAULT
condition).
ANTI-FROST
Intake Fan speed is reduced during very cold weather in order to prevent ice inside the unit which could damage the heat exchanger.
In this case the ANTI-FROST icon is activated on the LCD.
R
7
6

16
Maintenance can be carried out by the user.
Service must be performed only by an authorized installer and in accordance with local rules and regulations .
Questions regarding installation, use, maintenance and service of the unit should be answered by your installer or place of purchase!
8 MAINTENANCE AND SERVICE
WARNING
Make sure that specic warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
8.1 Components list
Fig. 8.a Internal components
1
2
3
4
5
6
7
8
G4 FILTER
F7 FILTER
HEAT EXCHANGER
CONDENSATION DRAINS
THERMOSTAT
FAN, INTAKE AIR
FAN, EXHAUST AIR
ELECTRICAL CONNECTION BOX
CABLE ENTRY
9
4
3
6
2
5
7
1
8
9
8.2 Description of Components
Fans
The fans have external rotor motors of EC type which can be steplessly controlled individually between 10–100%. The motor bearings are life time lubricated
and maintenance free. It is possible to easily disconnect and replace the fans if necessary.
Filters
The filters are of filter quality G4 for both the supply air and extract air filter. In addition an F7 Filter is supplied at the air intake. The filters need to be cleaned
regularly (and replaced when polluted) during maintenance. New sets of lters can be acquired from your installer or wholesaler.
Heat exchanger
The unit is equipped with a highly efcient, counter-ow plate heat exchanger. Supply air temperature is therefore normally maintained without adding
additional heat. The heat exchanger is removable for cleaning and maintenance during service.
Condensation drainage
Depending on the relative humidity in the extract air, condensation may occur on the cold surfaces of the heat exchanger, on one side in winter time, on the
other side in summer time (table 6.b).
The condensate water is led out through drainage pipe.
Thermistors
Temperature probes to implement temperature dependent functions.

17
Fig. 8.e
Fig. 8.d
Fig. 8.c
Fig. 8.b
Fig. 8.g
Fig. 8.f
8.3 Maintenance
• Keep the unit surface free from dust.
• Clean the filters with a vacuum cleaner following the below illustrations (fig.8 b-c-d-e) when the FILTER signal is displayed on LCD. Their maintenance may
differ per situation depending on the internal and external environmental conditions.
• Press FILTER button (Fig.7.b - ) to reset the Filter Alarm.
• Filters must be replaced every year.
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or electrical work!
L
• Keep the unit surface free from dust.
• Clean the filters with a vacuum cleaner following the following illustrations (fig.8 f-g-h-i) when the FILTER signal is displayed on LCD. Their maintenance may
differ per situation depending on the internal and external environmental conditions. Press FILTER button (Fig.7.b - ) to reset the Filter Alarm. Filters must
be replaced every year.
• Clean the heat exchanger every year with a vacuum cleaner. This may differ per situation depending on internal and external environmental conditions and
on frequency of filter cleaning (fig.8 f-j-k).
• Clean the fans every year with a vacuum cleaner. This may differ per situation depending on internal and external environmental conditions and on frequency
of filter cleaning. Do not move the balance clips of the fan (fig.8 f-l-m)
8.4 Service
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or electrical work!
WARNING
The installation and service of the unit and complete ventilation system must be performed by an authorized installer and in accordance with local rules and
regulations.
L

Fig. 8.mFig. 8.l
Fig. 8.i
Fig. 8.h
Fig. 8.n Fig. 8.o
Fig. 8.kFig. 8.j
Fig. 8.l

19
Fig. 8.m
Fig. 8.k
Fig. 8.m
8.5 Trouble shooting
Fans do not start
1. Check that main supply gets to the unit.
2. Check that all connections are working (all connections in terminal box and fast couplings of intake and exhaust air fans).
Reduced airow
1. Check setting of fan speed on the CTRL-DSP (controller supplied)
2. Check filters. Change of filters required?
3. Check diffusers. Re-setting or cleaning of grilles and diffusers required?
4. Check fans and heat exchange block. Cleaning required?
5. Check if air intake and exhaust have been clogged.
6. Check ducting system for damage and/or dirt accumulation.
7. Check if Anti-frost icon is displayed on LCD.
Fan noise/vibrations
1. Clean fan impellers. Cleaning required?
2. Check that the fans are firmly in place within the unit.
Excessive air noise
1. Check setting of fan speed on the CTRL-DSP (controller supplied)
2. Check grilles and diffusers. Re-setting or cleaning of grilles and diffusers required?
Gurgling noise
1. Drainage parts have not been installed correctly.
2. Drain connection below the unit has a too low water level, fill it up with water.
Unpleasant smell
1. Drainage parts have not been installed correctly.
2. Drain connection below the unit has a too low water level, fill it up with water.
3. Check filters . Change of filters required?
4. Check ducting system and grilles and diffusers. Cleaning required?
Water leakage near the unit
1. Drain connections and elbows/plugs have not been installed correctly. Sealing necessary?
2. Drain connections and elbows/plugs are dirty. Cleaning necessary?

20
ErP Directive - Regulations 1253/2014 - 1254/2014
a) Mark -AERAULIQA
b) Model -QR550ABP
c) SEC class -A A B
c1) SEC warm climates kWh/m2.a -15 -10,7 -6,7
c2) SEC average climates kWh/m2.a -39,4 -34,4 -30
c3) SEC cold climates kWh/m2.a -77,4 -71,3 -66,1
Energy label -Yes
d) Unit typology -Residenal - bidireconal
e) Type of drive -Variable speed drive
f) Type of Heat Recovery System -Heat recovery
g) Thermal eciency of heat recovery %82
h) Maximum ow rate m3/h 520
i) Electric power input at maximum ow rate W333
j) Sound power level (LWA)dBA 58
k) Reference ow rate m3/h 364
l) Reference pressure dierence Pa 50
m) Specic power input (SPI) W/m3/h 0,412
n1) Control factor -0,65 0,85 1
n2) Control typology -Local
demand control
Central
demand control
Manual
control (no DCV)
o1) Maximum internal leakage rate %0,8
o2) Maximum external leakage rate %0,5
p1) Internal mixing rate %N/A
p2) External mixing rate %N/A
q) Visual lter warning -Visual lter warning on display
r) Instrucons to install regulated grilles -N/A
s) Internet address for pre/disassembly instrucons -www.aerauliqa.com
t) Airow sensivity to pressure variaons %N/A
u) Indoor/outdoor air ghtness m3/h N/A
v1) AEC - Annual electricity consumpon - warm climates kWh 2,2 3,7 5,2
v2) AEC - Annual electricity consumpon - average climates kWh 2,6 4,2 5,6
v3) AEC - Annual electricity consumpon - cold climates kWh 8 9,6 11
w1) AHS - Annual heang saved - warm climates kWh 20,5 20 19,6
w2) AHS - Annual heang saved - average climates kWh 45,3 44,2 43,4
w3) AHS - Annual heang saved - cold climates kWh 88,7 86,5 84,8