Zehnder Rittling ComfoAir Compact CA155WM User manual

CA155WM CA155CM CA185WM
ComfoAir Compact
CA155WM / CA155CM / CA185WM
Mechanical Ventilation with Heat Recovery
Installation Instructions

Contents
2
Page
1.0 General Description / Physical Specications....................................... 3 - 4
2.0 Installation Instructions ........................................................................... 5
General Preparation.................................................................................... 5
Positioning .................................................................................................. 5
   Conguration............................................................................................... 6
   Mounting ..................................................................................................... 7
Access for Maintenance.............................................................................. 9
Condensate Drain....................................................................................... 10
   DuctingGuidelines...................................................................................... 11
Electrical ..................................................................................................... 12
Wiring The Unit ........................................................................................... 13
Connecting to the BMS............................................................................... 13
3.0 On-Site Commissioning ........................................................................... 15
4.0 Guarantee .................................................................................................. 19

1.0 General Description / Physical Specications
3
1.1 Overview
1.1.1 The ComfoAir CA155WM / CA155CM / CA185WM is a ventilation system designed to provide improved
indoorairqualityindwellings.Asawholehousesystem,theunitcontinuouslyextractsairfromthe
non-habitableroomsandsuppliesfresh,lteredairtohabitablerooms.Heatthatisrecoveredfromtheair
drawnfromthebathroomsandkitchenispassedthroughaheatexchangerandtheheatthatisrecoveredis
transferred,totemperthesupplyairinhabitableroomstoprovideacomfortableindoorenvironment.
1.1.2 Aboostspeedfacilityisprovidedtoincreasetheventilationrate,e.g.whencookingorshowering,providinga
comfortableindoorenvironment.AZGS2SwitchLiveboostswitchcanbeusedtoprovidethisoperation
(See Section 2.8.5 Electrical).
1.1.3 Ancillary Items Required
ComfoAir CA155WM / CA155CM ComfoAir CA185WM
125mmDucting(rectangularductingcanbeused,
where appropriate)
150mmDucting(rectangularductingcanbeused,
where appropriate)
ZGS2 Hardwired switch providing switching
betweenlowandhigh(option)
ZGS2 Hardwired switch providing switching
betweenlowandhigh(option)
1.1.4 Packaging includes:-
  1xHeatRecoveryUnit
  1xWallFixingBracket(ComfoAirCA155WM/CA185WM)or
2xCeilingFixingBracket(ComfoAirCA155CM)
  1xInstallationInstructions
  1xUser/HomeownerGuide
1.1.5 Warning: 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.
1.1.6 SitingNotes:Whereanopen-uedoilorgas-fuelledapplianceisinstalledinthe
kitchen,extractventilationcancausethespillageofuegases.Caremustbetaken
toensureventilationisreducedappropriately,assetoutintheBuildingRegulations.
Kitchenswithsolid-fuelappliancesshouldnothaveextractfanstted.
1.1.7 Thedesign,materialspecicationandinstallationmustonlybecarriedoutby
"competentpersons".Electricalinstallationmustbecarriedoutbyaqualied
Electrician.

4
1.2 Physical Specications
1.2.1 ComfoAir CA155WM
546
Vireo HR155WM front
125
50
594
Vireo HR155WM side
298
644
Front View Side View
1.2.2 ComfoAir CA155CM
546
636
125
441
Vireo HR155CM front
733.519
320
Vireo HR155CM side
Front View Side View
1.2.3 ComfoAir CA185WM
839
60
550
Vireo HR185WM front
899
555
150
Vireo HR185WM side
Front View Side View

2.0 Installation Instructions
2.1 General Preparation
2.1.1 TheComfoAirCA155WM/CA155CMunitissuppliedwith4x125mmØspigots.
•125mmductingwithconnectorscanbeused(see Ancillary Section page 3) to provide performance
levelsrequiredforcompliancewithlocalBuildingRegulations.
2.1.2 TheComfoAirCA185WMunitissuppliedwith4x150mmØspigots.
•150mmductingwithconnectorscanbeused(see Ancillary Section page 3) to provide performance
levelsrequiredforcompliancewithlocalBuildingRegulations.
2.1.3 InstallationoftheunitshouldbeinaccordancewiththecurrenteditionsoflocalBuildingRegulationsandIEE
orlocalWiringRegulations.
2.1.4 Thedesign,materialspecicationandinstallationmustonlybecarriedoutby"competentpersons".Electrical
installationmustbecarriedoutbyaqualiedElectrician.
2.1.5 IMPORTANT NOTE: Gases from fuel-burning equipment must not be drawn
into any living areas. If any room, where air is extracted, contains a fuel-
burning appliance such as a central heating boiler, then either of the following
should be undertaken:
•Theuemustbeoftheroomsealedorbalanceduetypeor;
•Allowancemustbemadeforanadequatesupplyofairintotheroom.
2.2 Positioning
2.2.1 TheComfoAirCA155WM/CA185WMunitmustbeinstalledverticallyandcanbeeitherwalloroormounted
toenableeffectivecondensatedrainageineitherakitchen/servicecupboardorsecuredtoaverticalstructure
intheloftspace.Ductspigotsmustbeuprightattopofunit.
2.2.2 TheComfoAirCA155CMunitmustbeinstalledhorizontallywiththexingbracketsprovided.Theunitisnot
intendedforinstallationwithinautilityroom.
2.2.3 Itisnotadvisabletoinstalltheunitdirectlyaboveabedroomorlivingroomceiling,orinanareathatispartof
a living area or bedroom.
2.2.4 Considerationmustbegiventoallowforadequateaccessforservicing,maintenanceandanyfault
diagnostics (See Section 2.5 Access for Maintenance).
2.2.5 Theunitcanbeconguredforrightandlefthandinstallationatatouchofabuttonbyfollowingthesteps
withintheCommissioningWizard(See Section 3.1.4 Commissioning Wizard)anddoesnotrequireany
internal changes. (See Figures overleaf for ducting conguration).
5

6
2.3 Conguration
Note: Tochangethehandingoftheunit, followthesimplestepswithintheCommissioningWizard
(See Section 3.0).Automaticallydoneforyouviasoftware.
2.3.1 ComfoAir CA155WM
Right Hand (factory setting)
INTAKE
EXHAUST
SUPPLY
EXTRACT
Left Hand
EXTRACT
SUPPLY
EXHAUST
INTAKE
Right Hand (factory setting) Left Hand
2.3.2 ComfoAir CA155CM
Right Hand (factory setting)
INTAKE EXTRACT
SUPPLY
EXHAUST
Left Hand
EXTRACT INTAKE
EXHAUST
SUPPLY
Right Hand (factory setting) Left Hand
2.3.3 ComfoAir CA185WM
INTAKE
SUPPLY
EXHAUST
EXTRACT
Right Hand (factory setting)
EXTRACT
EXHAUST
SUPPLY
INTAKE
Left Hand
Right Hand (factory setting) Left Hand

7
2.4 Mounting
2.4.1 TheComfoAirCA155WM/CA185WMunitissuppliedwithonewallxingbracket.Thebracketisalongstrip
andhastwoadjustablexingpointslocatedattheendofthebracket.Screwsandxingsnotsupplied.
2.4.2 Proceedtoalignthewallbrackettakingintoaccounttheavailablewallspacetomounttheunit,ensuringthat
thewallcansupport20kg(ComfoAirCA155WM)and30kg(ComfoAirCA185WM).
2.4.3 Useaspiritleveltoassistmountingandlevellingthebracket.Securelyxbrackettowallusing
suitablexings.e ‘V’ slots located top and bottom of bracket to mar
2.4.4 Theunitxestothewallbracketbyslottingthebracketattachedtothebackoftheunitandhooking
into place.
Fixing Bracket
Note:
•Fixing Bracket height will be critical in kitchen cupboard.
•There should be no movement once correctly located and the lters should be accessible
from easily removing the panels on the front of the unit. (See Section 4.1.8, and 4.2.0,
Homeowner Guide).
2.4.5 TheComfoAirCA155CMunitissuppliedwithtwoadjustableceilingxingbrackets.Eachbracketisalong
stripandhasfourxingpointslocatedatequalintervals.Itisrecommendedthatsixscrewsperbracketare
usedtosecuretheunit.Screwsandxingsarenotsupplied.
WARNING: Ensure that the ceiling board can support 20kg
(ComfoAir CA155CM) or re-inforcement maybe required.
2.4.6 Proceedtoalignandsecuretherstceilingbrackettakingintoaccounttheavailableceilingspacetomount
theunit.Locatesecondbracketposition(See Figure 1) andlooselytfourscrewswithineachslotattheinner
nearsidepoint.Thiswillallowthebrackettobeslottedinwardstosecuretheunit.
640mm
Loosely Fix screws Securely Fix screws
1
2
Figure 1

2.4.7 Theunitxestotheceilingbracketbyslottingthebracketattachedtothebackoftheunitandslidinginto
place.Firstensureconnectionisachievedonthe“securely”xedbracket(See Figure 2) andpushunitupto
ceiling, slide“loosely”xedbrackettoconnectwiththebracketonthebackoftheunit(See Figure 3).
Securely locate
brackets together
Figure 2
Figure 3
2.4.8 Tightenloosescrewsuntiltheunitissecurelytted(See Figure 4),addanadditionaltwoscrewstothe
outsideslots.ScrewpointsforbothbracketsareshowninFigure 5.
Figure 4
Figure 5
Note:
•There should be no movement once correctly located and the lters should be accessible
from easily removing the panels on the front of the unit (See Section 4.1.9, Homeowner
Guide).
8

2.5 Access for Maintenance
2.5.1 Footprint of ComfoAir CA155WM
500mm
HR155WM
Top View
2.5.2 Footprint of ComfoAir CA155CM
500mm
HR155CM
Top View
2.5.3 Footprint of ComfoAir CA185WM
600mm
HR185WM
Top View
9

2.6 Condensate Drain
2.6.1 ItisimportantthatanycondensateMUSTbedrainedaway.
•TheComfoAirCA155WM/CA185WMunitisprovidedwithacondensatedrainlocatedatthebaseof
theunitunderneath(See Figures 6-10).
•TheComfoAirCA155CMunitisprovidedwithacondensatedrainlocatedatthesideoftheunit
(See Figures 11-13) and can be rotated for ease of connection.
  Thedrainplugallowsacondensatedrainhose(21.5mmdiameter)tobepushconnectedandsolvent
welded/sealed.Pleaseensureawatertightsealisachieved.
2.6.2 Thedrainmusthaveacontinuousminimumfallof6mmper1mrunandcaneitherbechasedintothewallor
rundownwardsfromtheunitintothenearestwastewaternetwork.Ensurethatstepsaretakentominimise
the risk of mechanical damage to the drainage pipe work.
IMPORTANT NOTE: The condensate drain must incorporate a U bend to
create an air block and avoid leakage of smells back into the unit. If the unit
is installed within a loft space, please ensure that the condensate drain is
insulated to prevent against freezing.
2.6.3 Insomeinstances,acondensateconnectingpointwillalreadybeprovidedaspartofthebuildingdesign.
Thepositionofthispoint,relativetowheretheunitistobeinstalledshouldbecheckedforanyconnection
misalignmentandanynecessaryadjustmentmadebeforeproceedinganyfurther.
ComfoAir CA155WM / CA185WM ComfoAir CA155WM ComfoAir CA155WM
HR155WM/185WM Condensate connection
HR155WM
HR155WM
Figure 6 - Close up view
of condensate
Figure 7 - Front View Figure 8 - Side View
ComfoAir CA185WM
HR185WM
ComfoAir CA185WM
HR185WM
Figure 9 - Front View Figure 10 - Side View
10

ComfoAir CA155CM ComfoAir CA155CM ComfoAir CA155CM
HR155CM FRONT
HR155CM SIDE
Figure 11 - Close up view
of condensate
Figure 12 - Front View Figure 13 - Side View
2.7 Ducting Guidelines
2.7.1 Pleaserefertodesigndrawingsforproposedductinglayout.
2.7.2 Fourspigotsareprovidedforconnectionoftheducting;
•ComfoAir CA155WM / CA155CM - 125mm nominal diameter
•ComfoAir CA185WM - 150mm nominal diameter.
  Ductworkshouldbesecurelyconnectedtospigots.Failuretodothiswillcauseunnecessaryairleakageand
impairperformance.Ductingmustbeconnectedtoallfourspigotsaccordingtorightorlefthandconguration
(See Section 2.3 for Conguration).
2.7.3 Whereductsareexposedinunheatedareas,suchasroofspaces,theymustbeinsulatedwithatleast25mm
ofinsulation.
2.7.4 Ifapplicable,FireDampersMUST BE FITTEDinaccordancewithlocalBuildingRegulations.
2.7.5 Rigid Ducting
•Installusingthefewestnumberofttingstominimiseresistancetoairow.
•Wherepossible,nalconnectiontogrillesandunitshouldbemadewithaexibleconnection.
•Mechanicallyxductsusingmetaljubileeclipsandappropriatenon-hardeningsealantforair
tightness.
WARNING: Do not use screws for connection and ensure jubilee clips are
not over tightened.
2.7.6 Flexible Ducting
•Ensureductinglengthsarekepttoaminimumandductingispulledtautsothatitissmooth
and straight.
•Wherebendsarenecessaryandwhereductingisruninrestrictedareas,ensuretheductingis
notcrushed.
•Mechanicallyxductsusingmetaljubileeclipsandtapesealforairtightness.
WARNING: Should be in accordance with local Building Regulations.
11

2.7.7 Theintakefreshairshouldbedirectlyfromtheoutside.
•Ifdrawnthroughawall,anexternalgrilleshouldbetted.
•Ifdrawnthrougharoof,arecognisedroofterminalshouldbetted.
•Roofterminaltohaveaminimumequivalentfreeareaof10,000mm2.
2.7.8 Theexhaustairmustexittotheoutsidethroughawallorroofandmustbeprotectedbyawallgrilleor
recognised roof terminal.
•Roofterminaltohaveaminimumequivalentfreeareaof10,000mm2.
2.7.9 Intakeandexhaustpipesshouldbeinstalledatleast1maparttoavoidthecrosscontaminationofairows.
2.8 Electrical
2.8.1 WARNING: The appliance MUST be earthed.
All wiring must conform to IEE or local Wiring Regulations.
2.8.2 TheinstallationmustbecarriedoutbyaqualiedElectrician.
2.8.3 Allunitsaresuitablefora230V~50Hzsinglephasesupplyfusedat3A.
2.8.4 Atriple-poleswitchhavingaminimumcontactseparationof3.0mmmustbeusedtoprovideisolationfor
theunit.
2.8.5 TherecommendedswitchesforusewiththisproductaretheZehnder;
ZGS2 - Optional 2-position hardwired switch
(See Figure 18 for wiring diagram)
Controller Switch Type Speeds
ZGS2 2 - position rocker Low(I)High(II)
Note: The unit may also be wired to a Building Management System (BMS)
(See Section 2.9.1 for wiring details).
2.8.6 Thecontrollersmustnotbemountedinabathroomorabove/closerthan1metretoacookerwhereitcould
beaffectedbyexcessiveheatormoisture.
12

2.9 Wiring The Unit
Step 1 Undofourscrewsfromelectricalconnectioncoverandremove
ComfoAir CA155WM ComfoAir CA185WM ComfoAir CA155CM
HR155WM
HR185WM
HR155CM
Figure 14 - Top View Figure 15 - Top View Figure 16 - Top View
Step 2 Wire as per wiring diagram into the PCB terminal block.
Uponcompletion,replacecoverandsecurewiththefourscrews.
PCB CLOSEUP
BMS
Connection
Wiring
Terminal block
Wiring
E
NN
LL
L1
PCB
Terminal
Block
Triple-pole
Isolating
Switch
E
Light Switch
Light
Figure 17 - PCB Terminal Block Figure 18 - Wiring Specication
2.9.1 Connecting to the Building Management System (BMS)
2.9.2 ToconnectyourBMSsystemtotheComfoAirCompactunit,rstremovetheelectricalwiringcoverasper
Step 1 in Section 2.9,thenlocatetheBMSconnectionsonthePCB.
ComfoAir CA155WM ComfoAir CA185WM ComfoAir CA155CM
HR155WM
HR185WM
HR155CM
Figure 19 - Top View Figure 20 - Top View Figure 21 - Top View
13

2.9.3 Usingsuitablysizedcabling,carefullyremovetheBMSterminalblockandconnectorpinsandwireto
respective pin locations.
•1-2allowsforremotehigh(boost)speedoptions.
•3-5allowsforremotefaultindication.Relaywillbeenergisedupondetectionofafault.
Uponcompletionofwiring,carefullypushtbackontoPCB.
Pin Function Connection to External Circuit
1 Boost Volt free contact for additional sensors to High
2Ground 0V connection to PSU and High Speed Signal
3 N/C Isolatedrelaynormallyclosedcontact
4 N/O Isolatedrelaynormallyopencontact
5 Common Isolatedrelaycommoncontact
Figure 22 - Close-up of PCB with BMS connection points
2.9.4 Whenwiringhasbeencompletedapplycableclampandretainthecablesheathsecurelyinplaceby
tighteningthecableclampdownwithscrewxings.
12345
12345
Figure 23 - Securing BMS Wiring (Cable not supplied)
2.9.5 Retelectricalcover,takingcarenottotrapcable.
Figure 24 - Electrical Cover Attached (Cable not supplied)
12345
14

3.0 On-Site Commissioning
3.1.1 Thissectioncoversset-up,congurationoftheunitforinstallationandalteringpre-setfactorysettings.
ForinstructionsonhowtooperatetheLCDdisplayusermenu,maintenanceoptionsandindicatorwarning
information,pleaserefertotheUser/HomeownerGuide.
3.1.2 Oncethewiringconnectionshavebeenchecked,switchthemainssupplyonandcheckthatthesystemis
operatingcorrectly.Liftcoverofcommissioningwizardlocatedatthetopoftheunit.Uponconnectionof
electricalsupply,thecommissioningwizardwillautomaticallyturnon(See Section 3.1.4).
3.1.3 Integral LCD Display
Frost
Protection
LED
Service/Fault
LED
Summer
By-Pass
LED
Control Information Panel
Control
Button
SETUP COMMISSIONING WIZARD
  Belowareexamples/explanationsofwhatyouwouldseethroughtheCommissioningWizard.
P
SETUP COMMISSIONING WIZARD
ORTCONFIG:
<RH>
Example 1: Function selection screen
Top line - function / statement.
Bottom line - flashing cursor indicating next
action to be reviewed/changed.
PORT CONF IG:
<RH> >dwf>ckab
Example 2: Re-confirmation screen
Top line - function / statement.
Bottom line - three selectable functions
always come into screen with fwd flashing.
Option to move forward towards completion or
back to re-set function.
SETUPCOMPLETE
>itxe>ckab
Example 3: No editable variable in middle only ever seen as last step in the wizard
Top line - function / statement.
Bottom line - two selectable functions
only found at the end of the wizard.
Selection of exit will confirm all wizard
configuration settings.
Below are examples/explanations of what you would see through the Commissioning Wizard.
15

16
3.1.4 Commissioning Wizard
  Toprogressthroughthecommissioningwizard,rotatethecontrolscentralbuttontorequiredconguration
andpressthebuttontoselect(ateachsectionthetextwillashuntilithasbeenselected,wherebyitwillthen
gosolid).Youcanmovebackwardsandforwardsthroughouttheprocessuntilallsettingsarecorrect.
•Whenrstturningthepowerontotheunit,the"SetupWizard"promptwillbeshown.
•Pressthecentralbuttontostartthecommissioningwizard.
•Refertodesigndrawingsforsettinguptherequiredrates.
  Thestepsofthewizardareasfollows:
PORT CONF IG:
<RH>
Step 1 Port Conguration Set-up
a
RotatebuttontochooseeitherRH(RightHandConguration)or
LH(LeftHandConguration)
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
EXTRACTHIGH
<66%>
Step 2 Extract High Set-up
a
Factoryairowsetat66%,rotatebuttontorequiredairow%
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
SUPPLY HIGH
<66%>
Step 3 Supply High Set-up
a
Factoryairowsetat66%,rotatebuttontorequiredairow%
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
EXTRACTLOW
<33%>
Step 4 Extract Low Set-up
a
Factoryairowsetat33%,rotatebuttontorequiredairow%
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
SUPPLY LOW
<33%>
Step 5 Supply Low Set-up
a
Factoryairowsetat33%,rotatebuttontorequiredairow%
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
HUMIDISMART
<ON>
Step 6 Smart Humidity Set-up
a
RotatebuttontochooseeitherONorOFF
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
TIME RSMART
<ON>
Step 7 Smart Timer Set-up
a
RotatebuttontochooseeitherONorOFF
b Pressbuttontoselect
c RotatebuttonandchooseFWDtomovetonextsectionorBACKto
returntoset-up
d Pressbuttontoselect
SETUPCOMPLETE
<bac
ke
xi t>
Step 8 Commissioning Set-up Wizard Completion
a
RotatebuttontochooseeitherEXITtocompletecommissioningor
BACKtoreturntoset-up
b Pressbuttontoselect

17
3.1.5 Valve Set-up
•Switchtheunittothehighestoperatingposition.
•Closeexternalwindowsanddoors.
•Withthesystemoperatinginhighmode,proceedtoopentheextractvalvestotheirmaximum.
•Measurethetotalairvolumeattheextractvalves.
•Regulatetheextractvalvestotherequiredowperroom.
•Switchtheunittolowspeedtoconrmdesiredextractrateisachieved.
Itshouldnormallynotbenecessarytoadjusttheextractvalvesfurther.
•Repeattestsforsupplyairvalves.
3.1.6 Oncetheunitiscommissionedcheckthatthesystemisoperatingcorrectlybyturningthehardwiredswitchto
thedifferingsettings,i.e.theZGS2switchwillactivatetheunitbetweenlowandhighspeedsettings.
•Performancelevelscanbeveriedatbothextractandsupplyairvalvesusinganappropriate
methodsuchasarotatingvaneanemometerandairconekit.
•RefertoperformancegraphsforComfoAirCA155WM/CA155CM/CA185WMairow
characteristics (See Section 3.1.7 and 3.1.8).
Note: All settings are stored within the ComfoAir unit’s memory and should NOT be lost in the event
of a power failure. When power is restored, the unit should revert to normal running with all settings
unchanged. Likewise, reminder indicators are NOT reset.

3.1.7 Performance Graph-AirowCharacteristicsforComfoAirCA155WM/CA155CM
3.1.8 Performance Graph-AirowCharacteristicsforComfoAirCA185WM
0
50
100
150
200
03672108 144 180 216 252 288 324 360
0102030405060708090100
Static Pressure Pa
Airow
m3h
l/s
Airow
m3h
l/s
20%
30%
40%
50%
60%
70% 80% 90% 100%
Static Pressure Pa
Vireo HR185WM Vireo HR155WM/HR155CM
0
50
100
150
200
036 72 108 144 180 216 252 288 324
010 20 30 40 50 60 70 80 90
70%
80%90% 100%
20%
30%
40%
50%
60%
3.1.9 To Re-activate Commissioning Set-up Wizard
Intheeventthattheunitneedstobeadjustedoncethecommissioningwizardhasbeencompleted;
SETUPMEN
U>
<
passwo rd entry
PASSWORD
XXXX
•Pressthecontrolbuttontoactivatetheunit.
•Rotatebuttonuntilthescreendisplays"SetupMenu".
•Pressbuttontoselect.
•Enter Password "1010"byrotatingthebuttontotherespective
numberandpresstoselect(thishastobecompletedforeach
numberpriortocontinuing).
•Oncecommissioningsetuphasbeenre-activated,rotatebutton
todesiredsetupchangeandfollowstepswithincommissioning
wizard(See Section 3.1.4).
•Uponcompletion,tosaveandexit,rotatebuttonto"Exit",press
buttontoconrm.
18
0
50
100
150
200
03672108 144 180 216 252 288 324 360
0102030405060708090100
Static Pressure Pa
Airow
m
3
h
l/s
Airow
m
3
h
l/s
20%
30%
40%
50%
60%
70% 80% 90% 100%
Static Pressure Pa
Vireo HR185WM Vireo HR155WM/HR155CM
0
50
100
150
200
036 72 108 144 180 216 252 288 324
010 20 30 40 50 60 70 80 90
70%
80%90% 100%
20%
30%
40%
50%
60%

19
4.0 The Guarantee Period
4.1 ThisZehnderproduct(ComfoAirCA155WM/CA155CM/CA185WM)hasa2YearGuarantee.
4.1.1 Thisdoesnotaffectyourstatutoryrights.
4.1.2 Fulldetailsavailableonrequest.

ZehnderGroupInternationalSales•Almweg34•77933Lahr•Germany
T+497821586-392•F+497821586-406
[email protected]•www.zehnder-systems.com
05.10.1020Issue1Sept2013
All information is believed correct at time of going to press. E&OE.
AllgoodsaresoldaccordingtoZehnder’sStandardConditionsofSalewhichareavailableonrequest.
Alldimensionsreferredtoareinmillimetresunlessotherwisestated.
ZehnderGroupInternationalSalesreservestherighttochangespecicationsandpriceswithoutpriornotice.
©CopyrightZehnderGroup2013