aerauliqa QR280A User manual

QR280A - QR400A - QR550A
INSTALLATION, USE AND MAINTENANCE MANUAL

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 01
2 Precautions 02
3 Product information 02
3.1 General 02
3.2 Dimensions and Weight 03
3.3 Duct connections 03
3.4 Space required 04
3.5 Rating label 04
4 Transport and Storage 04
5 Installation 04
5.1Unpacking 04
5.2 Where/how to install 04
5.3 Installation 05
5.4 Precabled electric connections 08
5.5 Additional electric connections 09
6 Commissioning 10
6.1 Setting Fan speed 10
6.2 Before Starting the System 14
7 Operation 15
7.1UserMenuonCTRL-DSP 16
7.2 Installer Menu on CTRL-DSP 18
7.3 Additional functionalities 23
8 Maintenance and service 24
8.1 Components list 24
8.2 Description of Components 25
8.3 Maintenance 25
8.4 Service 26
8.5 Trouble shooting 29
9 Disposal and Recycling 29
10 ErP Product Fiche 30
1 INDEX
QR280A - QR400A - QR550A
Heat Recovery Ventilation Unit

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, Use and Maintenance Manual of the heat recovery ventilation units, models QR280A, QR400A and
QR550A.
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unitsQR280A,QR400AandQR550AaresuppliedwiththeCTRL-DSPremotemultifunctioncontrolpanelasstandard.
WARNING
If any abnormality in operation is detected, disconnect the device from the mains supply and contact a qualified technician
immediately.

3.3 Duct connections
The factory setting is LEFT.
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
Fig. 3.aConnectionsinLEFTandRIGHTorientation-QR280A.
3.2 Dimensions and Weight
Dimensions in mm.
QR280A
LEFT
AIntake air from outside
BExhaust air to outside
CSupply air to inside
DExtract air from inside
EWinter condensation drainage
FSummer condensation drainage
RIGHT
AExtract air from inside
BSupply air to inside
CExhaust air to outside
DIntake air from outside
ESummer condensation drainage
FWinter condensation drainage
Ø125
Ø118
592
55610
665
298
Weight (kg)
21,4
227
227276
276
104 104 90
89
89
A
B
C
D
A
B
C
D
EF
QR280A
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
778
490 144144
279 279220
247 180
Ø155
Ø148
778
861
799 62
144 490 144
180
247 123
279 220
549
279
Ø148
799
861
62
549
123
Ø155
A
B
C
D
QR400A - QR550A
Weight (kg)
QR400A QR550A
34,5 44

REVISIONE
NONSCALARE DISEGNO
FOGLIO 1 DI 1
A0
PESO:
fig-8
A A
B B
C C
D D
E E
F F
G G
H H
J J
K K
L L
M M
N N
P P
R R
T T
24
24
23
23
22
22
21
21
20
20
19
19
18
18
17
17
16
16
15
15
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
N.DISEGNO
SCALA:1:1
TITOLO:
MATERIALE:
DATA
DISEG.
VERIF.
APPR.
FABB.
Qual.
ANGOLARE:
FINITURA:
LINEARE:
BORDI NETTI
NOME FIRMA
SE NONSPECIFICATO:
QUOTE INMILLIMETRI
FINITURASUPERFICIE:
TOLLERANZE:
INTERRUZIONE
QR
3.5 Rating label
3.4 Space required
Make sure that enough space is left around the unit to allow easy maintenance (access to filters, 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(§7.2-Installermenu:3MachineOrientation).
• FortheQR400andQR550units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.c Rating label
Fig. 3.bConnectionsinLEFTandRIGHTorientation-QR400AeQR550A.
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.
WARNING
Make sure that specific warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
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).
WARNING
Make sure that specific warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
A
B
C
D
E
F
QR400A - QR550A
LEFT
AIntake air from outside
BExhaust air to outside
CSupply air to inside
DExtract air from inside
EWinter condensation drainage
FSummer condensation drainage
RIGHT
AExtract air from inside
BSupply air to inside
CExhaust air to outside
DIntake air from outside
ESummer condensation drainage
FWinter condensation drainage

• 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.
• Leavefreespaceforopeningtheremovablepanelsandforremovalofthemaincomponents(§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.
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.
Fig. 5.a Fig. 5.c
517 mm
Fig. 5.b
Fig. 5.e
Fig. 5.g
Fig. 5.f
Fig. 5.d
Spirit level
2x
Spacers
Spirit level
QR280A

Fig. 5.j
Spirit level
Fig. 5.k
2x
Spacers
H=min. 60mm
Fig. 5.h Fig. 5.i
Ø125mm Ø125mm
5.aPreparethesurfacewheretheunitistobemounted.Makesurethatthesurfaceisat,levelled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.cUseappropriatewallplugsandscrews(notsupplied).
5.d Fix the 2 spacers on the back of the unit.
5.e Hang the unit to the wall by means of the fixing brackets.
5.f Screw safely.
5.g Make sure that the unit is at spirit level.
5.hConnectthecondensationdrainjoints(G3/4”M)placedinthebottomsideoftheunittoaU-bend(orsimilar)onthe
condensation drainage pipe. In case close the non-used joint by means of the supplied drain stopper. Make sure this
operation is well done in accordance to the best practice in order to assure water and air tightness.
5.i Connect the unit to the duct system. Make sure that all necessary accessories are used to create a functional ventilation
solution.
Connecttheunitelectricallyaccordingto§5.4.Checkthatitstartsupcorrectly.
QR400A - QR550A

Ø160mm Ø160mm
Fig. 5.l
Fig. 5.m
H=min. 60mm
Fig. 5.n Fig. 5.o
Spirit level Spirit level
5.j Preparethesurfacewheretheunitistobemounted.Makesurethatthesurfaceisat,levelledandthatitsupportsthe
weightoftheunit.Performtheinstallationinaccordancewithlocalrulesandregulations.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 fix the wall fixing bracket.
5.k Fix the 2 spacers on the back of the unit.
5.l Hook the unit at its bracket.
5.m Make sure it is at spirit level and fix it by means of the safety screw.
5.n Connectthecondensationdrainjoints(G3/4”M)placedinthebottomsideoftheunittoaU-bend(orsimilar)onthe
condensation drainage pipe. In case close the non-used joint by means of the supplied drain stopper. Make sure this
operation is well done in accordance to the best practice in order to assure water and air tightness.
5.o Connect the unit to the duct system. Make sure that all necessary accessories are used to create a functional ventilation
solution.
Connecttheunitelectricallyaccordingto§5.4.Checkthatitstartsupcorrectly.

5.4 Precabled electric connections
The unit must be earthed.
The units are wired internally from factory.
To connect the the CTRL-DSP to the mother board use a 4 poles twisted-pair cable: 30m max length.
Unitcomespre-wiredwith:
- mains supply cable (3-core: brown, blue, yellow/green).
- control cable, for connection to CTRL-DSP (4-core: green, brown, yellow, white).
- cable for connection to remote sensor (2-core: blue, brown).
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.
Fig. 5.p Electric connections
YELLOW-GREEN BLUE
BROWN
N
L
SUPPLYCONTROL
YELLOW (A) WHITE (B) BROWN (+12V)
GREEN (GND)
REMOTE SENSOR
BLUE
BROWN

5.5 Additional electric connections
The units must be earthed.
The units are wired internally from factory.
To connect the the CTRL-DSP to the motherboard use a 4 poles twisted-pair cable: 30m max length.
Figures below show the wiring diagram.
Inputs/commands
N°1ACsupplyconnector.
N°3on/offinputs(volt-freecontacts),N°1forambientsensors(namedIAQ),N°1forboostmomentaryswitch(namedBST)and
N°1forremoteON/OFFenable(namedHY/S1).
N°11-10Vanaloginput(namedSLAVE).
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).
Fig. 5.q Electrical connections on the motherboard fitted in the terminal box.
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.
CTRL-DSP
N L
-S4 -+ +
SLA
1-10V
HEAT/CD
+12V A B
GND
SLAVE input
1-10V
AC power supply
Heat output
(MAX 250Vac 5A)
Boost momentary
switch (BST)
IAQInput
(AirQualityi.e.SEN-HY)
HY/S1Input
(for remote
ON/OFFenable)
BST IAQ HY/S1
DONOTREMOVE
(see§7.3 Remote enable)

6 COMMISSIONING
6.1 Setting Fan speed
The speed of the unit can be adjusted during installation according to required ventilation rate.
Figures 6. a-d-g below show performance curve at different settings of the 0-10V signal to the motors. Consumption refers to
the 2 motors.
Tables 6. b-e-h indicate 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.
Tables 6. c-f-i indicate the sound level at the different speeds.
0
50
100
150
200
250
300
350
400
450
500
550
600
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300
I
II III
IV
V
A
B
C
DE
F
G
Fig. 6.a Intake curve according to Reg.
1253/2014 (ErP).
Static Pressure - Pa
Airow-m3/h
Curve Speed % W
max
m3/h
max
A (min) 23 9 36
B 30 17 88
C 46 33 139
D 60 41 153
E 77 51 172
F 92 100 230
G (max) 100 160 281
Table 6.b Thermal efficiency of the heat exchanger and average production of condensation water. Preliminary data.
EXTERNAL INTERNAL 50m3/h 100m3/h 150m3/h 200m3/h 250m3/h
T (°C) R.H. (%) T (°C) R.H. (%) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (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
-18 70 20 40 96,0 0,22 92,6 0,42 90,0 0,61 86,8 0,78 83,3 0,88
-18 80 20 50 96,8 0,28 94,0 0,55 90,6 0,79 88,0 1,02 84,5 1,16
-10 60 20 30 95,1 0,10 91,3 0,18 87,6 0,24 83,6 0,29 80,1 0,32
-10 70 20 40 96,1 0,16 92,5 0,30 89,6 0,42 87,1 0,53 83,6 0,60
-10 80 20 50 96,8 0,21 93,6 0,41 91,2 0,59 88,1 0,76 84,6 0,86
0 50 20 30 94,6 0,01 88,8 0 84,6 0 80,1 0 76,6 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
0 70 20 50 95,8 0,11 92,8 0,20 89,5 0,28 86,7 0,34 83,2 0,38
10 50 20 40 94,0 0 88,8 0 84,3 0 80,3 0 76,8 0
10 60 20 50 93,9 0 88,9 0 84,4 0 81,2 0 77,7 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
35 60 26 50 94,4 0 88,8 0 84,4 0 82,0 0 78,5 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
35 80 26 60 97,4 0,09 95,0 0,18 93,1 0,26 91,6 0,33 88,1 0,37
40 60 26 50 96,4 0,08 92,6 0,15 89,9 0,19 85,7 0,23 82,2 0,26
40 70 26 55 97,5 0,14 94,9 0,27 92,6 0,39 91,0 0,50 87,5 0,56
40 80 26 60 98,5 0,20 97,2 0,38 95,4 0,57 93,3 0,73 89,8 0,83
Working point W m3/h SPI (W/m3/h) ƞt %(1)
I 11,9 54 0,2204 86
II 16,5 76 0,2183 86
III 23,4 97 0,2407 85
IV 32,8 119 0,2761 84
V 47,7 140 0,3397 83
(1)
Thermal efficiency of the unit.
QR280A

Working point W m3/h SPI (W/m3/h) ɳt %(1)
I 8,9 54 0,1648 92
II 11,2 76 0,1481 92
III 14,2 97 0,1461 91
IV 19,4 119 0,1633 90
V 25,3 140 0,1802 89
VI 32,7 162 0,2019 89
VII 47,4 191 0,2484 88
VIII 64,7 220 0,2946 87
IX 87,8 248 0,3535 86
(1)
Thermal efficiency of the unit.
Speed 100%
LwdB-SOUNDPOWEROCTAVEBAND Lp dB(A)
63 125 250 500 1K 2K 4K 8K Tot @3m
Intake 76 64 70 72 62 59 53 46 78 50
Supply 75 64 66 68 59 53 44 34 77 46
Extract 76 63 66 68 60 54 45 34 77 47
Exhaust 76 64 69 70 61 58 52 44 78 49
Breakout 74 67 65 70 62 56 48 36 77 48
Speed 80%
LwdB-SOUNDPOWEROCTAVEBAND Lp dB(A)
63 125 250 500 1K 2K 4K 8K Tot @3m
Intake 67 63 70 69 60 58 51 43 74 48
Supply 65 61 65 66 57 51 42 31 71 44
Extract 66 61 65 65 58 53 43 32 71 44
Exhaust 66 62 68 69 59 56 50 43 71 47
Breakout 61 66 65 67 57 53 45 33 71 45
Speed 60%
LwdB-SOUNDPOWEROCTAVEBAND Lp dB(A)
63 125 250 500 1K 2K 4K 8K Tot @3m
Intake 57 57 69 57 51 49 42 33 70 41
Supply 55 55 64 54 49 43 34 24 65 37
Extract 60 54 62 53 49 44 34 24 65 36
Exhaust 57 56 68 57 51 49 42 33 69 41
Breakout 56 55 61 54 50 45 35 25 64 36
Speed 40%
LwdB-SOUNDPOWEROCTAVEBAND Lp dB(A)
63 125 250 500 1K 2K 4K 8K Tot @3m
Intake 51 51 58 47 40 38 28 21 60 31
Supply 53 51 57 44 37 31 23 16 59 29
Extract 53 48 55 44 38 32 22 16 58 27
Exhaust 52 50 56 48 40 37 29 22 59 30
Breakout 53 48 53 45 39 32 22 16 57 27
Table 6.c Sound level: dBA figures are average spherical free-field, for comparitive use only.
Fig. 6.d Intake curve according to Reg.
1253/2014 (ErP). Product tested
without filter F7.
Static Pressure - Pa
Airow-m3/h
0
50
100
150
200
250
300
350
400
450
500
0 50 100 150 200 250 300 350 400 450
I
II
III
IV V
VI VII
VIII IX
A
B
C
D
E
F
G
Curve Speed % W
max
m3/h
max
A (min) 23 12 102
B 30 19 149
C 46 43 230
D 60 88 322
E 77 134 364
F 92 149 395
G (max) 100 160 403
QR400A

Speed 100%
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
Speed 80%
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
Speed 60%
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
Speed 40%
LwdB-SOUNDPOWEROCTAVEBAND Lp dB(A)
63 125 250 500 1 K 2 K 4 K 8K Tot @3m
Intake 50 50 57 46 39 37 27 20 59 30
Supply 52 50 56 43 36 30 22 15 58 28
Extract 52 47 54 43 37 31 21 15 57 26
Exhaust 51 49 55 47 39 36 28 21 58 29
Breakout 52 47 52 44 38 31 21 15 56 26
Table 6.f Sound level: dBA figures are average spherical free-field, for comparitive use only.
Table 6.e Thermal efficiency of the heat exchanger and average production of condensation water. Data supplied by the
manufactureroftheheatexchanger.TheheatexchangeristestedattheUniversityofLuzern(HochschuleLezern).
EXTERNAL INTERNAL 100m3/h 200m3/h 300m3/h 400m3/h
T (°C) R.H. (%) T (°C) R.H. (%) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h)
-18 60 20 30 95,9 0,31 92,3 0,59 89,2 0,83 86,4 1,05
-18 70 20 40 96,4 0,44 93,3 0,85 90,6 1,23 88,2 1,58
-18 80 20 50 96,9 0,56 94,2 1,10 91,9 1,60 89,8 2,08
-10 60 20 30 95,7 0,20 91,8 0,36 88,3 0,49 85,2 0,58
-10 70 20 40 96,3 0,32 93 0,60 90,1 0,85 87,5 1,07
-10 80 20 50 96,8 0,43 94 0,82 91,6 1,19 89,4 1,54
0 50 20 30 94,7 0,02 89,8 0 85,6 0 82 0
0 60 20 40 95,5 0,12 91,5 0,20 87,8 0,25 84,3 0,27
0 70 20 50 96,3 0,22 93 0,40 90 0,56 87,3 0,69
10 50 20 40 94,5 0 89,8 0 85,6 0 82 0
10 60 20 50 94,5 0 89,8 0 85,6 0 82 0
10 70 20 60 95,3 0,04 90,9 0,06 86,6 0,06 82,5 0,03
35 60 26 50 94,6 0 89,9 0 85,9 0 82,3 0
35 70 26 55 96,3 0,09 92,8 0,15 89,4 0,20 86,2 0,22
35 80 26 60 97,7 0,19 95,7 0,36 93,9 0,52 92,2 0,67
40 60 26 50 96,5 0,16 93,3 0,29 90,2 0,39 87,3 0,46
40 70 26 55 97,7 0,28 95,6 0,54 93,7 0,78 91,6 1
40 80 26 60 98,5 0,39 97,2 0,77 96,1 1,13 95 1,49

Table 6.h Thermal efficiency of the heat exchanger and average production of condensation water.
Data supplied by the manufacturer of the heat exchanger.
Fig. 6.g Intake curve according to Reg.
1253/2014 (ErP). Product tested
without filter F7.
Static Pressure - Pa
Airow-m3/h
(1)
Thermal 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
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
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
EXTERNAL INTERNAL 100m3/h 200m3/h 300m3/h 400m3/h 500m3/h
T (°C) R.H. (%) T (°C) R.H. (%) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (kg/h) ƞ (%) H2O (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
QR550A

6.2 Before starting the system
When the installation is finished, 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sy-
stem exhaust or similar).
•Theunitiscorrectlysetandcommissioned.
Speed 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
Speed 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
Speed 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
Speed 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
Table 6.i Sound level: dBA figures are average spherical free-field, for comparitive use only.

DATE: shows the current date
MODE: shows the operation mode
SPEED: shows the selected speed
TIME: shows the time
FILTER ALARM: shows that filters need to be maintained/replaced
BOOST: shows that BOOST speed is activated
DISABLED: shows that the CTRL-DSP is disabled
BOOST: to manually activate the BOOST speed
to move to the right when setting the Weekly Timer
FILTRO: to reset the Filter Alarm
to move to the left when setting the Weekly Timer
ESC: to exit and go back to the previous menu
OK: to enter the selected menu
togoDOWNwiththemenuselection
togoUPwiththemenuselection
to power on/off the ventilation unit
Fig. 7.c CTRL-DSP
IncaseofRIGHTorientation,followsinstructionsasper§3.3-Fig.3.aandFig.3.binordertogetthetemperatureprobes
operate correctly.
shows ERROR ALARM(see§7.3tocheckthetypeoferror)
shows that the Bypass is active
showsthatANTI-FROSTisactive
showsthattheIAQinputisactivated(i.e.HY,CO2)
showsthatNIGHTMODEisactivated
shows that Heating output is activated
shows that the Boost is active
shows that the weekly timer is activated
shows that the weekly timer is deactivated
shows that the SLAVE functionality is activated
7 OPERATION
WARNING
Make sure that specific warnings and cautions in Chapter 2 “Precautions” are carefully read, understood and applied!
LEFT ORIENTATION
AIntake air from outside
BExhaust air to outside
CSupply air to inside
DExtract air from inside
Fig. 7.bQR400AeQR550Atemperature probes.
Fig. 7.aQR280Atemperatureprobes.
Some operations can be selected either from the CTRL-DSP buttons or from the menu.
abc d
e
f
g
hi
j
kl
m
a
b
c
d
e
f
g
h
i
j
k
l
m
T12 T21 T11 T22
EXTRACT
SUPPLY
INTAKE
EXHAUST
T12
T21
T11
T22
EXTRACT
SUPPLYINTAKE
EXHAUST
A
B
C
DA
BC
D

When powered on, the CTRL-DSP displays as follows:
Fig. 7.d CTRL-DSP operation screen
The speed (1-2-3) can be manually changed using or .
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.
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
Select the menu item using or .
Press OK to enter.
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
Modeselectionallowsthechoiceamong“NormalMode”and“Holiday”.
Press OK to enter.
Choose the mode using or .
Press OK to select.
Press ESC or wait for about 60 seconds to go back to the previous menu.
NormalMode3V(DEFAULT)
Once powered on, the unit runs at the speed selected during the installation.
The speed number (1-2-3) is displayed on the LCD.
Factorysetting(DEFAULT):speed1.
The speed (1-2-3) can be manually changed using or .
IncasetheIAQsensorinputisactivatedasperFig.5q(e.g.HYorIAQsensor),theunitspeed
increasesby15%,andtheiconisdisplayed.OncetheIAQinputisdeactivated,theunit
reverts back to selected speed.
IncasetheNightModeisactivated(-UserMenu5),thesensorlogicdescribedaboveis
ignored (the sensors have no effect and the unit runs at speed 1).
Holiday mode
The unit works at Holiday speed, adjusted during the installation.
TheIAQsensorlogicdescribedaboveisignored(thesensorshavenoeffect).
ThewordHOLIDAYisdisplayed.

It allows to set the duration of the Boost speed.
Press OK to select.
Time setting options are 15 - 30 - 45 - 60 minutes.
Increase/decrease the minutes using or .
Press OK to select and go back to the previous menu.
Factorysetting(DEFAULT):15minutes.
It allows to select the maximum speed (Boost).
Press OK to select.
ChooseNOorYESusingor .
Press OK to select and go back to the previous menu.
Factorysetting(DEFAULT):NO.
Boost speed can be adjusted during the installation.
Boost speed can be activated if the Mode selection is 3V, Holiday or Slave.
Boost function can be enabled in these ways:
- fromtheUserMenu(2Boostfunction).
- pressing the BOOST button on the CTRL-DSP for at least 2 seconds (Fig. 7.c - ).
- using a remote momentary switch connected to the BST input (Fig. 5.q).
If Boost is active, the icon is displayed and the unit runs at the selected Boost speed,
forthedurationtimesetintheUserMenu“3Boostduration”;afterwardstheunitrevertsto
selected speed.
Boost can be deactivated before time only by pressing the BOOST button on the CTRL-DSP
for at least 2 seconds (Fig. 7.c - ).
If the Weekly timer is activated the Boost functionality can be activated.
If the Weekly timer is deactivated the Boost functionality cannot be activated.
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
g
g
ItallowstodeactivatetheautomaticoperationofthespeedincreasedviaremoteIAQsensors:
the unit operates at speed 1. When the “ending time” is elapsed, the unit returns to operate
at the selected speed.
Press OK to select.
Select the submenu item using or :
1Enabling:selectONorOFF-Factorysetting(DEFAULT):OFF
2StartingTime:setthetime-Factorysetting(DEFAULT):20:00o’clock(8p.m.)
3EndingTimer:setthetime-Factorysetting(DEFAULT):08:00o’clock(8a.m.)
Change the time using or : switch from hour to minute pressing OK.
Press OK to confirm.
Press ESC to go back to the previous menu.
IftheNightModeisactivated,theiconisdisplayed.
IfboththeNightModeandtheWeeklyTimerareactivatedtheunitspeedistheone
setintheWeeklyTimerprogramwhileanyremoteIAQsensorisdeactivated.
IftheNightModeisactivatedwhiletheWeeklyTimerisdeactivatedtheunitoperates
inNightMode(speed1andremoteIAQsensorsdisabled).
If the user changes manually the speed using or , or push the BOOST button (Fig. 7.c
-),theNightModeisdisabledandtheiconvanishes.
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
It allows to reset the FilterAlarm after maintenance/replacement, only when FILTER is displayed
(Fig. 7.c - ).
Timing can be set during the installation.
Factorysetting(DEFAULT):3months.
Press OK to select and reset.
Press ESC to go back to the previous menu.
FILTER is no more displayed.
The Filter Alarm can be also reset pressing the FILTER button on the CTRL-DSP (Fig. 7.c - ).
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
e
h
g

It allows to set the time slots and the operating speeds throughout the week when the unit is
settoNormalMode3V.
Press OK to select.
ChooseNOorYESusingor .
Press OK to select.
Factorysetting(DEFAULT):NO.
If“YES”ischosen,pressingOKtheMondaytimeprogramisdisplayed.
Change the days using or .
Press OK to set the daily time program (max 4 time slots).
Switch from hours-minutes-speeds using or .
Change hours-minutes-speeds using or .
The daily program can be copied in the following days pressing OK.
Save the setting pressing ESC and then OK.
If the Weekly Timer is activated, the icon is displayed.
Note:intheintervalsnotincludedintheprogrammedtimeslotstheunitisOFF.Theicon
.m...is displayed.
IncaseboththeWeeklyTimerandtheNightModeneedtobeused,makereferencetothe
UserMenu“5NightMode”formoredetails.
In case both the Weekly Timer and the Boost functionality need to be used, make reference to
theUserMenu“2Boost”formoredetails.
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?
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
User Menu
1 Mode Selection
2 Boost
3 Boost Duration
4 Reset FILTER Alarm
5 Night Mode
6 Weekly timer
7 Installer Menu
7.2 Installer Menu on CTRL-DSP
TheInstallermenucanbeselectedeitherbyselectingpoint7intheUserMenuorbypressing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 Normal Mode
6 Bypass settings
8 Heating
10 Speed setting
11 Airow Balancing
12 F7 lter
13 Filter Alarm interval
15 Constant Pressure
17 Periodic purge
18 Working Hours Counter
19 ModBus settings
20 Save settings
21 Load Settings
22 Restore Default Settings
23 Contrast
24 Debug page
Select the menu item using or .

It allows to select one language among English,Italiano,Deutsch,Čeština,Slovenský, Français,
Español,Nederlandse,中国, Magyar and Русский.
Press OK to enter.
Select the language using or .
Press OK to select.
Factorysetting(DEFAULT):English.
Installer Menu
1 Language
2 Date/time
3 Machine orientation
4 Normal Mode
6 Bypass settings
It allows to set the date and the time.
Press OK to enter.
Select the item using or and press OK.
Set the date and the time using or and press OK to confirm.
Press ESC to go back to the previous menu.
Installer Menu
1 Language
2 Date/time
3 Machine orientation
4 Normal Mode
6 Bypass settings
It allows to select the orientation of the duct connections from and to outside (LEFT or RIGHT
handcongurationasper§3.3).
Press OK to enter.
Choose “Left” or “Right” using or .
Press OK to select.
Factorysetting(DEFAULT):Left.
Installer Menu
1 Language
2 Date/time
3 Machine orientation
4 Normal Mode
6 Bypass settings
ItallowstoselectoneoperationamongNormalMode3V,SlaveorConstantPressure.
Press OK to enter.
Choose the operation mode using or . Press OK to select.
Factorysetting(DEFAULT):3V
3V Mode
To adjust the speeds, refer to the paragraph “10 Speed setting” in the Installer Menu.
Slave Mode
It allows to control the speed by means of the 0-10V analogic input: any other operation logic
is ignored.
If the Slave mode is activated, the icon and the word Slave are displayed.
Constant Pressure Mode
Currently not available.
Installer Menu
1 Language
2 Date/time
3 Machine orientation
4 Normal Mode
6 Bypass settings
It allows to set the Bypass operation parameters.
Press OK to enter.
Select the submenu item using or and press OK to confirm:
1 Desired Temperature: it is the ambient temperature desired by the user.
2Tmax Free Heating: it is the maximum allowed outside temperature for free heating operation.
3 Tmin Free Cooling: it is the minimum allowed outside temperature for free cooling operation.
The setting ranges are:
DesiredTemperature:15°C÷30°C.Factorysetting(DEFAULT):23°C.
TmaxFreeHeating:25°C÷30°C.Factorysetting(DEFAULT):28°C.
TminFreeCooling:15°C÷20°C.Factorysetting(DEFAULT):18°C.
Increase/decrease the temperature using or .
Press OK to select.
Press ESC to go back to the previous menu.
If the Bypass functionality is activated, the icon is displayed.
Installer Menu
1 Language
2 Date/time
3 Machine orientation
4 Normal Mode
6 Bypass settings