aerauliqa QR350ABP 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 egulations
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 4
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 19
8.5 Trouble shooting 20
9 Disposal and recycling 21
1 INDEX
Installation Manual (installer & user)
QR350ABP - 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.
•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. Cleaning and user
maintenance shall not be made by children without supervision.
•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 QR350ABP 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 QR350ABP 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
A
BD
C
Weight Kg
23
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.
E
F
A
B
C
D

4
3.5 Rating label
Fig.3.c Rating label
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).
•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).
WARNING
Make sure that specific warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
WARNING
Make sure that specific warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
F
E
AB
CD

5
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.
•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.
•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.
Fig. 5.a
517 mm
Fig. 5.b
Fig. 5.c Fig. 5.d
Fig. 5.fFig. 5.e
SPIRIT LEVEL
H=min. 60mm
Fig. 5.g

6
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 Drill the holes in the wall.
5.d.eHangtheunittothewallbymeansofthexingbracketsandscrewsafely(screwsandwallplugsnotsupplied).
5.f Make sure that the unit is at spirit level.
5.g 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.h Connect the unit to the duct system. Make sure that all necessary accessories are used to create a functional ventilation
solution.
5.i Connect the unit electrically according to point 5.4. Check that it starts up correctly.
Fig. 5.h Fig. 5.i
Ø125mm Ø125mm

7
5.4 Electric Connections
The unit must be earthed.
The QR350ABP 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.l Electrical connections on the motherboard fitted in the terminal box.
+12V
A B GND
AB1
2
V
G
N
D

8
T R. H. T R. H. ᶯH2OᶯH2OᶯH2OᶯH2OᶯH2OᶯH2O
°C % °C % % kg/h % kg/h % kg/h % kg/h % kg/h % kg/h
-18 60 20 30 95,3 0,16 92,2 0,29 89,0 0,41 85,0 0,51 81,5 0,58 78,3 0,63
-18 70 20 40 96,0 0,22 92,6 0,42 90,0 0,61 86,8 0,78 83,3 0,88 80,1 0,96
-18 80 20 50 96,8 0,28 94,0 0,55 90,6 0,79 88,0 1,02 84,5 1,16 81,3 1,26
-10 60 20 30 95,1 0,10 91,3 0,18 87,6 0,24 83,6 0,29 80,1 0,32 76,9 0,35
-10 70 20 40 96,1 0,16 92,5 0,30 89,6 0,42 87,1 0,53 83,6 0,60 80,4 0,65
-10 80 20 50 96,8 0,21 93,6 0,41 91,2 0,59 88,1 0,76 84,6 0,86 81,4 0,94
0 50 20 30 94,6 0,01 88,8 0 84,6 0 80,1 0 76,6 0 73,4 0
0 60 20 40 95,3 0,06 90,4 0,10 86,6 0,13 83,4 0,13 79,9 0,15 76,7 0,16
0 70 20 50 95,8 0,11 92,8 0,20 89,5 0,28 86,7 0,34 83,2 0,38 80,0 0,42
10 50 20 40 94,0 0 88,8 0 84,3 0 80,3 0 76,8 0 73,6 0
10 60 20 50 93,9 0 88,9 0 84,4 0 81,2 0 77,7 0 74,5 0
10 70 20 60 94,8 0,02 90,3 0,03 85,1 0,03 80,9 0,01 77,4 0,01 74,2 0,01
35 60 26 50 94,4 0 88,8 0 84,4 0 82,0 0 78,5 0 75,3 0
35 70 26 55 95,7 0,04 92,2 0,08 88,9 0,10 85,4 0,11 81,9 0,12 78,7 0,13
35 80 26 60 97,4 0,09 95,0 0,18 93,1 0,26 91,6 0,33 88,1 0,37 84,9 0,41
40 60 26 50 96,4 0,08 92,6 0,15 89,9 0,19 85,7 0,23 82,2 0,26 79,0 0,28
40 70 26 55 97,5 0,14 94,9 0,27 92,6 0,39 91,0 0,50 87,5 0,56 84,3 0,61
40 80 26 60 98,5 0,20 97,2 0,38 95,4 0,57 93,3 0,73 89,8 0,83 86,6 0,90
300 m³/h250 m³/hESTERNO INTERNO 50 m³/h 100 m³/h 150 m³/h 200 m³/h
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.
Consumption refers to the 2 motors.
Table 6.b indicates the efficiency of the heat exchanger and of the condensation produced in different climatic conditions, to help
the installer or the designer of the ventilation system to decide if to connect one or both condensation drainages.
High production of condensation is the direct consequence of a high efficiency level as well as of the humidity rate.
Table 6.c indicates the sound level at the different speed.
Fig. 6.aIntakecurveaccordingtoReg.1253/2014(ErP).
Static Pressure - Pa
Airow-m3/h
EXTERNAL INTERNAL
Table 6.b Thermal efficiency of the heat exchanger and average production of condensation water. Data supplied by the manufacturer of the heat exchanger.
0
50
100
150
200
250
300
350
400
450
500
550
600
0 50 100 150 200 250 300 350
I
III IV VVI
II
A
B
C
D
E
F
G
Curve Speed
%
W
max
m3/h
max
A(min) 20 8 43
B 35 24 103
C 50 70 185
D 60 98 215
E 67 155 263
F 85 275 330
G(max) 100 325 346
Working point W m3/h SPI (W/m3/h) ɳt %(1)
I 13,7 54 0,2535 89
II 20,1 76 0,2664 89
III 28,9 97 0,2973 88
IV 42,2 119 0,3550 87
V 58,9 140 0,4196 86
VI 68,3 153 0,4464 86
(1)
Thermal efficiency of the unit.

9
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

10
7 OPERATION
WARNING
Make sure that specific 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
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.
A
B
D
C
T12
T21
T11 T22
EXTRACT
SUPPLY
INTAKE
EXHAUST

11
Whenpoweredon,theCTRL-DSPdisplaysasfollows:
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.

12
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.
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?
K
I

13
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.
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
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.
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.

14
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)
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.
A
C

15
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“NotInstalled”.
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%
Installer menu
6 Heating Threshold
7 Dehumidication
8 Speed Setting
9 Airow Balancing
10 F7 lter
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 set-
tings can be saved.
Press OK to select.
Press OK to confirm.
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

16
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
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 QR350ABP 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
“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

17
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 specific 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
HEAT EXCHANGER
CONDENSATION DRAINS
THERMISTOR
FAN, INTAKE AIR
FAN, EXHAUST AIR
ELECTRICAL CONNECTION CARD
CABLE ENTRY
3
8
2
5
4
6
1
7
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ltersareoflterqualityG4forboththesupplyairandextractairlter.Thelters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.

18
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-f-g)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
Fig. 8.eFig. 8.d
Fig. 8.cFig. 8.b
Fig. 8.gFig. 8.f

19
•Keep the unit surface free from dust.
•Cleanthefilterswithavacuumcleanerfollowingthefollowingillustrations(fig.8h-i-j-k-l-m)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h-i-j-n-o-p).
•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h-i-j-q-r-s-t).
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.k
Fig. 8.iFig. 8.h
Fig. 8.n Fig. 8.o
Fig. 8.l
Fig. 8.j
Fig. 8.p

20
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?
Fig. 8.r
Fig. 8.q
Fig. 8.s Fig. 8.t