Heatrae Sadia CVE ECO 2 Operation and installation manual

CVE ECO 2
Installer and user manual

2
Safety
Warning
• Donotusethisapplianceforfunctionsotherthan
thosedescribedinthebooklet
• Afterremovingtheappliancefromitspackaging,
ensure that it is complete and undamaged. In
doubt contact Heatrae Sadia. Do not leave the
packagingwithinreachofchildrenortheinrm.
• Certain fundamental rules must be observed
whenusinganyelectricalappliance,includinga)
nevertouchapplianceswithwetordamphands;
b)nevertouchapplianceswhilebarefoot;c)do
not allow children to use the appliance without
supervision; d) supervise inrm persons when
usingtheappliance.
• Storetheapplianceoutofthereachofchildren
andinrmpersonsifyoudecidetodisconnectit
fromthepowersupplyandnolongeruseit.
• Donotoperatetheapplianceinthepresenceof
inammable substances or vapours (alcohols,
insecticides,petrol,etc).
Caution
Thefollowinggeneralinstructionsareimportant:
• Follow the safety instructions to prevent fan
damageandpersonalinjuries.
• Maintenance instructions must be followed to
preventdamageand/orexcessivewearandtear.
• The specications in this manual may not be
modied.
• Thefansmaynotbemodied.
• Themotormoduleisonlysuitablefora230V50
HzA.C.system.
• Donotexposetheappliancetotheweather(rain,
sun,etc).
• Donotplaceobjectsontopoftheappliance.
• Regularly inspect the appliance for visible
defects.
• If any faults are found contact Heatrae Sadia
immediately.

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• The appliance must only be installed by a
professionallyqualiedperson.
• Ensure that the electrical system to which the
applianceisconnectedcomplieswithapplicable
standards.
• Useamulti-polarswitchwithaminimumcontact
gapof3mmtoinstalltheappliance.
• Switch off the appliance at the main switch: a)
if the appliance does not function correctly; b)
beforecleaningtheoutsideoftheappliance;c)
iftheapplianceisnottobeusedforanylength
oftime.
• Becarefultoavoiddamagingtheelectriccircuit.
• Donotusetheappliancetocontrolactivationof
water heaters, room heaters etc, nor should it
dischargeintotheuesofanysuchappliances.
• Ensure that the appliance discharges into a
single duct (dedicated to this product) which is
routedtotheoutside.
• Theair tobeextractedfromthedwelling must
be clean (i.e. free of grease, soot, chemical
and corrosive agents, explosive or ammable
mixtures).
• Keep the appliance intake and outlet valves/
grillesfreetoensureoptimumairowatalltimes.
Electroniccomponents
TheHeatraeSadiaCVEECO2RFTfancontainsparts
which may be live. Consult a professionally qualied
installer in the event of an alleged fault. All repairs
and maintenance work should be carried out by a
professionallyqualiedinstaller.

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Maintenance
The ventilation unit should be inspected regularly for
contamination. Electrically discharge the unit before
carryingoutanyworkonit.Firstisolatetheunitfrom
themainssupplyandmakesurethattheunitisnotre-
connectedtothesupplysocketbyyourselforanyone
elsebeforeyouhavecompletedthework.
Rotatingparts
TheCVEECO2RFTfancontainsrotatingmechanical
parts. These parts will keep on turning for a few
secondsafterdisconnectingthe unit fromthesupply.
Forthisreasonwaitatleast10secondsafterisolating
theproductbeforeopeningtheunit.Thefanwillnotbe
movingafterthese10secondshaveelapsed.
Sharpedgesoftheducts
The valves in your home should also be cleaned
regularly. These can be removed from the wall or
ceiling.
Bewareofprotrudingductsections.Thesecanbevery
sharp.
Replacingthevalves
The valves should always be placed back in their
original locations. Do not turn the valve during the
cleaning process; make sure to mark the setting
before cleaning the valve. If the valves are switched
orsetdifferently,theventilationvolumeswillnolonger
be correct and the ventilation system will not work
optimally. The bathroom may then remain humid for
toolong,yourtoiletmaybeverycooloryourkitchen
maysmellmouldy.

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Contents
1Introduction................................................................. 6
2Whyisventilationimportant?..................................... 9
3Individualventilationsystem..................................... 11
4TheCVEECO2RFTcentral-ventilationunit............. 12
5TheComponentsoftheCVEECO2RFT.................. 13
6Howtooperatetheunit............................................. 16
7Maintenenceandwarranty........................................ 18
8Informationfortheinstaller........................................ 20
9Manufacturer’sstatement.......................................... 23
10ECDeclarationofConformity.................................... 25
11ErPTechnicalData.................................................... 26

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1Introduction
Interior comfort and energy efciency are becoming
increasingly important considerations in building.
More and more equipment is being developed to
controltheclimatewithinthehomewhilemeetingthe
requirementsforcomfortandenergyefciency.Oneof
thesedevicesis the HeatraeSadiaCVE ECO 2RFT
extractor unit which is the heart of the whole house
ventilationsystem.
AHeatraeSadiaCVEECO2RFThasbeeninstalledin
yourhome.Inthisusermanualyouwillndinformation
about the necessity of good ventilation and how your
HeatraeSadiaCVEECO2RFTworks.Additionally,we
explainhowtooperateandmaintaintheunit.
Itisimportantthatyoureadthisusermanualthoroughly
beforeusingtheventilationsysteminyourhome.Itis
alsoagoodideatokeepthemanualnearyourHeatrae
SadiaCVEECO2RFTunit.
CompliancewithBuildingRegulations
The 2010 Edition of the U.K. Building  Regulations
Approved Document F1: Means of Ventilation
(applicable in England and Wales) details 4 clearly
dened systems of ventilation to dwellings.  System
3–Continuousmechanicalextract(MEV)iscomplied
withbythenewCVEECO2RFTultra-highefciency
wholehouseextractventilationsystem.
System3–Continuousmechanicalextractrequiresa
“minimumhighrate”ineachwetroomtobeachieved
(Kitchens13l/sandbothutilitiesandbathrooms8l/s
-sanitaryonly6l/s).
The “minimum low rate”  is calculated by taking the
numberofbedroomsinthedwellingandapplyingthe
l/s value from Table 5.1b. In addition the rate should
be no less than 0.3 l/s per m² of internal oor area
(all storey’s) plus for each additional occupant over
and above the anticipated two for the rst  bedroom
andoneforeachoftheothersafurther4l/smustbe

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addedtotheextractrate.Thesystemprovidesquiet,
uninterrupted extract ventilation from the dwelling,
removing warm stale air via all of the “wet” rooms,
creating a permanent  air path through  the property
fromthe“dry”habitablerooms.
Air is usually drawn into the property through
backgroundventilatorslocatedinthebuildingfacades.
However if the system is being installed to solve an
incomingairbornenoiseissue,backgroundventilators
may be omitted (subject to the proven air tightness
of the dwelling).  There is a boost facility on the fan
whichenablestheextractratesfromallwetroomsto
beincreasedtocounterincreasedpollutantscauseby
cookingorbathingactivities.
The current Building (Scotland) Regulations refers to
continuously operating mechanical extract ventilation
in accordance with the guidance in BRE (Building
Research Establishment) Digest 398, a paper based
on the former government department’s (and now
private company) own tests and recommendations,
specically 0.5 air changes per hour throughout the
property.  The Heatrae Sadia CVE ECO 2 complies
fully with the recommendations contained within this
document.
With the Government actively encouraging energy
saving and a target for all new homes to be ‘carbon
zero’ by 2016, the Heatrae Sadia CVE ECO 2 RFT
has been designed ‘future proof’. The ‘Code for
SustainableHomes’wasupdatedinOctober2010to
reectthechangestothe2010BuildingRegulations.
Level4nowrequiresafurther25%reductioninCO
emissions.
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To achieve the three highest levels of reduction of
carbonemissions,theairleakageofthedwellingmust
beimprovedsosignicantlythatcontinuousventilation
becomes the only appropriate method. In addition, it
must be demonstrated that the ventilation system
itself must be energy efcient. The Heatrae Sadia
CVEECO 2RFTwithitslowenergyD.C.motor and
innovative impeller, has been independently tested
bytheBuildingResearchEstablishment(BRE)tothe
appropriateSAP¹)AppendixQtestmethodologyandis
thereforeAppendixQeligible.
1)TheGovernmentsStandardAssessmentProcedure
(SAP)isamethodassessingtheenergyperformance
of dwellings and SAP Appendix Q provides an
allowanceforthebenetsofenergy-savingappliances,
products may be independently assessed and the
resultsuploadedtotheSAPwebsite.

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2Whyisventilationimportant?
Ventilationisnecessary
Inthepastpeoplebuilthouseswhichwerenotair-tight,
whichleakedairforexample,attheconnectionpoint
ofthewalland the oororroof.Cracks were always
visiblearoundwindowsanddoors.Alltheseopenings
ensuredthatlargevolumesofairmovedinandoutof
thebuildings.Whenthewindwasblowingthecomplete
air content of the home was refreshed  three to four
timesanhour.Thisensuredverygoodventilationof
thehome,butalotofenergywaslost.
Construction methods have changed. Floors, walls
androofsare,whenpossible,constructedwithalayer
of insulation. The insulation ensures that there are
nearly no cracks and the airtightness is increased. It
is a misconception to think that there is still enough
ventilationinahomewithoutsometypeofventilation
system.
Ventilationisabsolutelynecessaryinanair-tighthome
topreventproblemsrelatedtohumidity,mouldandthe
healthoftheresidents.
Moisturecontentofthehome
Incorrectuseoftheventilationsystembytheresident
incombinationwithtoday’swell-insulatedhomesgives
humidity an open eld. The moisture content in the
home increases and can cause health, humidity and
mould problems. A family of four persons produces
14 to 20 litres of moisture per day just by breathing,
sleeping, cooking, washing, dishwashing, bathing,
wateringplants,etc.
Many products, such as textile, carpets, parquet,
newspapers and cigarettes, contain substances that
harmthehealthoftheresidents.Allthemoisturesuch
as water vapour and aromatic substances should be
removedfromthehomes.

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Thecorrectuseoftheventilationsystem
isimportant
Ventilation requires energy. The correct use of the
ventilation system can limit energy loss as much as
possible.
Your home has a Heatrae Sadia CVE ECO 2 RFT
system. This system can contribute extensively to a
healthyinteriorclimateandanoptimumcomfortlevel.
Anotheradvantageisthattheelectricitycostsarelower
thanotherventilationsystems.Theventilationsystem
can, however, only function correctly when used and
maintainedinaresponsiblemanner.
Some data: 5 to 20% of people have an airway
disorder.Thenumberofhousedustmitehasincreased
a hundredfold in the past 25 years. The number of
people suffering from Chronic Non-Specic Lung
Diseasehasdoubledinthelast15years.
Researchhasproventhatghtingmoistureinhomes
greatlycontributestothedecreaseofallergicreactions
ofpeoplewithanairwaydisorder.Thecorrectuseand
maintenance of your ventilation system makes this
possible.
An individual ventilation system has been built into
your home. This self-contained system allows you to
adjust your individual ventilation system. The system
consistsofthefollowingparts:

• CVEECO2RFTextractorunit
• Valves
• Switchtoselectloworhighrateventilation
• (CVEECO2RFT)or,
• One or more RFT switches with three speed
settings

11
3Individualventilationsystem
Howtheindividualventilationsystem
works.
Theextractorunitventilatesseveralroomsinthehome
through ducts tted in the kitchen, the bathroom, the
WCandallother‘wetrooms’.Theseareconnectedto
thecentralextractorfansystem.Toensurethereisa
gooddistributionofair,valvesarettedtotheopenings
oftheventilationducts in the roomstobeventilated.
Airisextractedfromtheroomsthroughthesevalves,
whilefresh air fromoutside entersthe home through
openings,suchasgrillesinthewallsandwindowsof
livingroomsandbedrooms.

12
4TheCVEECO2RFTcentral-ventilationunit
The CVE ECO 2 RFT was developed to maintain a
comfortable climate within the home by means of an
energy-efcientandconvenienttechnology.
Theenergy efciency comes from theapplication  of
direct current motors. The CVE ECO 2 RFT has the
added convenience of radio frequency (RFT) remote
control.
Energy-efcientdirectcurrentmotor
Theenergyefciencydemandsofhomesandbuilding
practises are becoming increasingly stringent. For
this reason the Heatrae Sadia CVE ECO 2 RFT is
equippedwith direct currentmotors.These makethe
unitveryenergyefcientanddeliversignicantsavings
onelectricitycosts(upto80%).

Innovativetechnology
Anumberofinnovativetechnologieshavebeenusedin
thedevelopmentoftheCVEECO2RFT.Forexample,
theunithasasingleprintedcircuitboardforboththe
regulatingandthecontrolelectronics.Theconstruction
ofthefanisalsonew.Theairisnowcirculatedthrough
the fan by cone-shaped blades. This results in more
efcient propulsion of the air and thus to greater
energyefciency.

13
5TheComponentsoftheCVEECO2RFT
The CVE ECO 2 RFT is modular and has several
different components. This makes the system more
reliabletechnicallyandsimplertoservice.Theunitis
madeofpolypropylene(atypeofplastic).Thismaterial
hasalonglifeandcanbecleanedwithadampcloth.
Housing
The housing of the CVE ECO 2 RFT is constructed
toalloweasyreplacementof the parts, which makes
maintenance and cleaning very simple. The unit can
bemountedonthewallorceilingusingthemounting
bracketsprovided.
Theunithasveairconnections.Therightportonthe
unit(1) [see diagramp.14] isthe outlet funnelfor air
extractedandblownoutside.Theotherfourports(2)
[seediagramp.14]arefortheremovaloftheairfrom
thehome.Theyarelocatedasfollows:
• Onthetopleftoftheunit.
• Ontherightsideoftheunit.
• Ontheleftsideoftheunit.
• Onthebottomoftheunit.
[seediagramp.14].

14
The blue covers on the unit close off the unused
air inlets to prevent leakage of air and ensure that
maximumcapacityisused.
Frontcover
TopermitinstallationoftheRFTsetreceiverorother
work,suchasmaintenance,theunit’sfrontcovercan
beremovedwithascrewdriver.Insertthescrewdriver
horizontallyin the space providedonthetopleftand
pressopenthecover.Youcanthenremovethecover
byhand.
Note: Disconnect the unit from the mains supply
before removing the front cover.
2
22
2
1

15
Servicemodule
If there is a fault with the motor or electronics, the
technician can easily x the unit by replacing  the
servicemodule.
Thewarrantyontheservicemoduleisfortwoyears
fromtheinstallationdate.Formoreinformationabout
thetermsandconditionsofthewarranty,(seechapter
7p.18).
Motor-drivenfan
Themotor-drivenfanformstheheartoftheventilation
unitandhasbeenspeciallydesignedfortheCVEECO
2 RFT. During the development of the direct current
motor, special attention waspaidtolownoise levels,
highefciency anda highvolume ofair moved. This
contributes to a healthy and comfortable interior
climateinyourhomeandloweroperatingcosts.

Electronics
The electronics are also an important part of the
unit. When you change settings with the switch, the
electronics carry out your command. The motor is
settothedesirednumberofrpmstoensuresufcient
ventilation. The electronics consist of a basic printed
circuitboard with anintegrated RFTreceiverwhich
willpermittheRFTremotecontrolswitchestooperate
theswitches.
The user should not touch any electronic parts –
they may be electrically live.

16
IndividualCVEECO2RFTventilationsystemscanbe
controlledeitherbyathreespeedhardwiredswitchor
byawirelessthreespeedRFT.
Radiofrequency(RF)operationswitch
The RFT (radio frequency) operation switch
(transmitter)canbeusedasa3-positionmodeswitch
withtimerfeaturefortheCVEECO2RFTventilation
unit. This operation switch can be used to set the
ventilationunittooneofthethreeventilationmodes
(capacities):Themodesare:
• Mode1-Lowmode.
• Mode2-Mediummode.
• Mode3-Highmode.
The low mode is used at night, the medium mode
duringthedaywhentherearepeopleathomeandthe
highmodewhencooking,showeringorbathing.

The switch also has a timer. The ventilation unit can
be switched to high mode for a predetermined time
bypressing thetimer button.The timer automatically
switchestheventilationunittolowmodeafterthetime
haselapsed.
Thelengthoftimesetforthetimerisdeterminedbythe
user.Pressthetimerbuttononcetosettheventilation
unit to high mode for 10 minutes. Press the timer
buttontwicetosettheventilationunittohighmodefor
20 minutes. Press the timer button three times to
set the ventilation unit to high mode for 30 minutes.
Iftheoperationswitchisusedbychoosingmode1,2or
3whilethetimerisinoperation,thetimerisswitchedoff
andtheventilationunitoperatesinthechosenmode.
6Howtooperatetheunit

17
Hardwired3positionswitch
TheCVEECO2RFTcanbeoperatedusingthe3
positionswitchHRS-3.Steponeisusedatnight,step
twoduringthedaywhentherearepeopleathome
andstepthreewhencooking,showeringorbathing.

18
7Maintenenceandwarranty
Maintenance
TechnicalmaintenanceoftheCVEECO2RFTisnot
necessary.However,theunitwillneedtobecleaned
once every three to four years depending on the
accumulationofdust.Youcancheckyourselfwhether
theextractorunitisverydirty,butitmustbecleanedby
aqualiedtechnician.
To check whether your extractor unit is dirty, follow
thesesteps:
• Isolatetheunitfromthemainspowersupply.
• Removeoneormoreofthebluesealingcovers
sothatyoucanseethefan.
• Inspectthefanfordustanddirt.
• A little dust makes hardly any difference to the
fan’sperformance.Ifthelayerofdustanddirtis
morethan1mmthickontheinsideoftheblades,
weadvisehavingthefancleaned.
• Checkthebearings.Youcandothisbyspinning
thefan.
• Checkthatthebearingsdon’tmakeanynoise.
• Check that the fan doesn’t swing from side to
side.
• Ifthefanissetinmotionbyhand,itshouldonly
rotateafewtimesandthencometoastandstill
withafewjolts.
• Thisisacharacteristicofadirectcurrentfanand
iscompletelynormal.
• Depending on the outcome of the inspection,
the fan should be cleaned and/or made ready
foruse.
• Fitthebluesealingcoverstoclosetheinlets.
• Reenergisethemainssupply.
Valves
The valves have to be cleaned regularly to ensure
the constant and reliable operation of the ventilation
system and for your own health. Make sure that the
setting of the system (air ow) is not changed when
you clean the valves. The valve could be turned
by accident and this would mean that the opening
becomeslargerorsmaller.


19
Each valve should be placed back in the same duct
openinginthesameroomfromwhichitwasremoved.
Cleaningvalves
Valves without a lter can be removed from the duct
opening. The foam ring (if applicable) should be
removed before cleaning the valve in warm water
(andwashing-upliquid).Replacethevalveintheduct
opening after cleaning. The valve should always be
placedinthesameductopeningitwasremovedfrom.
MaintenanceofDucting
It is our recommendation that the ducting connected
totheExtractTerminals(locatedinkitchens,utilities,
bathroomsanden-suites)needstobeinspectedevery
3 years and cleaned every 6 years. Cleaning of the
grilleandductingcanbecarriedoutwithadampcloth.

20
8Informationfortheinstaller
Installation
• The CVE ECO 2 RFT can be used in various
typesofhomes,bothinnewbuildingaswellas
renovationprojects.Theunitcanbeinstalledat
differentplacesinthehome,forexample,inaloft
space,storeroomorcupboard.
• Theextractorunitcanbeinstalledinallpositions
usingthemountingeyesprovidedagainstawall,
ontheceilingandalsoonslopingsurface.
• The CVE ECO 2 RFT should be installed
following the general and local safety and
installation regulations and the instructions in
thismanual.
• TheCVEECO2RFTrequires230V50Hzmains
voltage. The tolerance for the mains voltage is
5%.
• Amultipolarswitchmustbettedwithaminimum
contactgapof3mm.
• Thefeedercableis1.5mlongandtheconnection
islocatedtowardsthetopoftheunit.
• Theductsshouldbeofthecorrectdimensions
(125mmdiameteror204X60rigid).
• Fansandductinginorpassingthroughunheated
voidsorloftspacesshouldbeinsulatedtoreduce
thepossibilityofcondensationforming.
Theunitcanbeconnectedinvariousways.