Meltem M-WRG-M/MB-FR75/1 User manual

VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
INSTALLATION MANUAL
HOME VENTILATION WITH HEAT RECOVERY
Flush-mount installation kit
M-WRG-M/MB-FR75/1
M-WRG-M/MB-FR75/2
M-WRG-M/MB-FR63/1
M-WRG-M/MB-FR63/2
Solid construction with one exible pipe connection
Solid construction with two exible pipe connections
for ush-mounting ventilation units from the
M-WRG-S and M-WRG-K series
Part no. 5300-05 07/2013 EN

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 2 -
VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
Contents
1 Introduction ........................................................................................................................ 3
1.1 Notes on this installation manual ......................................................................................... 3
1.2 Description ........................................................................................................................... 3
1.3 Explanation of the symbols used ......................................................................................... 3
2 Safety instructions ............................................................................................................. 4
2.1 Hazardclassication ............................................................................................................ 4
2.2 Notes on using the ventilation units safely ........................................................................... 4
3 Planning notes ................................................................................................................... 5
3.1 General planning notes ........................................................................................................ 5
3.2 Additional planning notes for this installation kit .................................................................. 6
3.3 Retrospectivelyush-mountingtheinstallationkit ............................................................... 6
4 Items supplied .................................................................................................................... 7
4.1 Installation kit M-WRG-M/MB-FR75/1, part no. 5051-21/75
Installation kit M-WRG-M/MB-FR63/1, part no. 5051-21/63 ................................................ 7
4.2 Installation kit M-WRG-M/MB-FR75/2, part no. 5051-22/75
Installation kit M-WRG-M/MB-FR63/2, part no. 5051-22/63 ................................................ 7
4.3 Options ................................................................................................................................. 7
5 Dimensions of the installation kit ..................................................................................... 8
6 Tools and equipment required .......................................................................................... 8
7 Installing the installation kit .............................................................................................. 9
7.1 Fixingthexingplatetothewallbox ................................................................................... 9
7.2 Breakingthroughthewall .................................................................................................... 9
7.2.1 Planningthewallbreakthroughfornewbuilds .................................................................... 9
7.2.2 Breakingthroughanexistingwall ...................................................................................... 10
7.3 Chasingoutchannelsforexiblepipeconnections ............................................................ 11
7.4 Chasing out channels for connecting cables ..................................................................... 12
7.5 Running the connecting cables .......................................................................................... 12
7.6 Insertingthewallbox ......................................................................................................... 13
7.7 Inserting the cardboard insert and protective cover ........................................................... 14
7.8 Fixingthewallbox ............................................................................................................. 14
7.9 Fillinggapsaroundthewallboxwithfoam ........................................................................ 15
7.10 Cuttingexiblepipestolength ........................................................................................... 15
7.11 Insertingexiblepipesintotheexiblepipeconnection .................................................... 16
7.12 Rivetingtheexiblepipeconnectiontothexingplate ..................................................... 16
7.13 Plasteringthewallboxandexiblepipesontheinside ..................................................... 16
7.14 Aligningthewallboxontheoutside .................................................................................. 17
7.15 Plasteringthewallboxontheoutside ............................................................................... 18
7.16 Preparingthewallboxforconnectingtheventilationpipes ............................................... 19
7.17 Inserting the ventilation pipes ............................................................................................ 19
8 Installing the ventilation unit ........................................................................................ 20
9 Flexible pipe layout example .......................................................................................... 20

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 3 -
VENTILATION & HEAT RECOVERY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
1 Introduction
1.1 Notes on this installation manual
Thisinstallationmanualcontainsimportantinformationthatshouldbefollowedwheninstallingthe
installation kit for the M-WRG-S and M-WRG-K ventilation units.
►To avoid possible risks and mistakes, read all the instructions carefully before installing the
kit.
WARNING
► FollowALLdangerandwarninginstructionsandnotesonprecautionarymeasures.
►Read sections „2 Safety instructions“ on page 4 and „3 Planning notes“ on page 5
carefully.
1.2 Description
Thismanualdescribeshowtoush-mountthefollowinginstallationkitsinsolidwalls:
— M-WRG-M/MB-FR75(63)/1withoneexiblepipeconnectionforexhaustairor supply air
(see Fig. 1)
— M-WRG-M/MB-FR75(63)/2withtwoexiblepipeconnectionsforexhaustairand supply air
(see Fig. 2)
Fig.1: M-WRG-M/MB-FR75(63)/1 Fig.2: M-WRG-M/MB-FR75(63)/2
1.3 Explanation of the symbols used
►This symbol indicates an action to be taken.
— This symbol indicates a list.

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 4 -
VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
2 Safety instructions
Thismanualcontainsnotesthatyoumustfollowforyourownpersonalsafetyandtoavoidinjury
anddamagetoproperty.Theyarehighlightedbywarningtrianglesandareshownasfollowsac-
cording to the level of danger.
2.1 Hazard classication
DANGER
asusedinthismanualmeansthatdeath,severeinjuryorconsiderabledamagetopropertywill
occurifthehazardwarningsareignored.
WARNING
asusedinthismanualmeansthatdeath,severeinjuryorconsiderabledamagetopropertymay
occurifthehazardwarningsareignored.
CAUTION
asusedinthismanualmeansthatminorinjuryordamagetopropertymayoccurifthenoteson
precautionary measures are ignored.
NO TE
A note as used in this manual contains important information about the product or about a part of
themanualtowhichparticularattentionshouldbepaid.
2.2 Notes on using the ventilation units safely
WARNING
—Operation with heating appliances that draw air from the room
► FollowtherequirementsoftheGermanFireCode(FeuVo)whenplanningandinstalling
the unit.
► Contactthelocalchimneysweepbeforetheendoftheplanningphase.
► Havethechimneysweepapprovetheoperationoftheventilationunit.
—Installation in wet areas
ThefollowingrulesfromDINVDE0100-701/702applytoinstallationinwetareas:
— Protectionzone0and1:TheunitmustNOTbeinstalledintheseareas.
— Protectionzone2:Theunitmaybeinstalledinthisareaifthemainsswitchiscovered
withaprotectivecap.Theprotectivecapmustbeinstalledatthefactory.
► Youwillneedtoincludetheprotectivecap(M-WRG-SN,partno.5430)whenyou
order the ventilation unit.
— Otherzone:Theunitmaybeinstalledinthisarea.

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 5 -
VENTILATION & HEAT RECOVERY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
—Build-up of icicles and ice patches at low temperatures
The heat recovery process in our ventilation units causes condensation. This condensation
isdissipatedtotheoutsideviatheoutgoingairline.Whenexternaltemperaturesdropbelow
0°Cthiscancauseabuild-upoficiclesattheouterwallterminalsandicepatchesonthe
ground.
► Youshouldthereforepositiontheouterwallterminalssoastoexcludeanypossibilityof
accidents.
3 Planning notes
3.1 General planning notes
Whenplanning,pleasereadthefollowingnotesonselectingthelocationoftheventilationunit:
— Theinstallationkitscanbeinstalledinsolidwallsthatareatleast17.5cmthick.
► Forwallsthatare60cmthickormore,youwillneed100cmlongsupplyandexhaust
airpipes(M-WRG-LR100,partno.5580).
— Theventilationunitmustbeinstalledindoorsonanexternalwall.
— For a standard room height of 2.50 m, the best effect for air exchange is achieved if the
supplyandexhaustairopeningsareroughly30cm(topedgeoftheunit)belowtheceiling
(exception:exhaustairopeningintheceilingifthe2-roomsolutionisused).
► Maintainthefollowingminimumdistances:
— Forthisinstallationkit,thedistancebetweenthetopedgeofthewallboxandthe
ceilingmustbeatleast30cm,otherwisetherewillnotbeenoughspaceforcon-
nectingtheexiblepipes.
— Thedistancebetweenthesideedgeoftheunitandadjacentsurfacesshouldbeat
least5cm.Theventilationunitwillbeeasiertooperateifthisminimumdistanceis
maintained.Italsoallowstheltertobereplacedwithoutobstruction.
►In taller rooms, position the ventilation unit so that an operator can still reach the control
panelunaided(withoutsteps,ladders,etc.).Alternativelyorderatypeofventilationunit
that is not controlled from the unit itself.
— Theventilationunitmustalwaysbefreelyaccessibleforoperationandmaintenance.
► Makesurethattheventilationunitisnotblocked,obstructedorcoveredwhentheroom
issubsequentlydecoratedandfurnished,otherwiseitcannotbeoperatedanditwillnot
bepossibletoreplacethelter.
►Make sure that the supply and exhaust air openings are not blocked, obstructed or cov-
eredwhentheroomissubsequentlydecoratedandfurnished.

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 6 -
VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
3.2 Additional planning notes for this installation kit
WARNING
Observe the relevant re safety and soundproong regulations
► Observetheregulationsconcerningtherebehaviourofbuildingmaterialsandcomponents
asdenedinDIN4102.
► Observetheregulationsconcerningsoundproonginbuildingsasdenedin
DIN4109,particularlytherequirementsforinsulationagainstairborneandimpactsound.
►Observe the building regulations applicable in your country.
NO TE
► Observethefollowingrecommendationsfortheuseofexiblepipesasthiswillavoidunin-
tentionalpressurelossesintheexiblepipes.
— Asfaraspossible,useexiblepipeswithnominaldiameterDN75.
— Alwaysconnecttwoexiblepipestotheexiblepipeconnection.
— Runthetwoexiblepipesofaexiblepipeconnectioninparalleltooneanother.
— Minimisethenumberofbendsintheexiblepipes.
3.3 Retrospectively ush-mounting the installation kit
WARNING
► Makesurethattherearenosupplylinesinthevicinityofthewallbreakthrough(e.g.gas,
waterorpower).
► Makesurethatthewallbreakthroughdoesnotaffectthelocalstaticloadingrequirements.
►Fit a lintel if necessary.
► Ifyouareinstallingthekitretrospectively,runtheexiblepipesinasuspendedceiling.

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 7 -
VENTILATION & HEAT RECOVERY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
4 Items supplied
4.1 Installation kit M-WRG-M/MB-FR75/1, part no. 5051-21/75
Installation kit M-WRG-M/MB-FR63/1, part no. 5051-21/63
Item Description Qty. Parts
1 Wall box 1x
2 Cardboard insert 1x
3Protectivecoverforwall
box
1x
4 Signal cover 1x
5Protectivecoverforex-
ible pipe connection
1x
6 Flexible pipe connection
withprotectivecover
1x
7 Blind rivet 2x
8Assemblyxingplate 1x
9Spaxscrew4.5x35 3x
10 Protective sleeve 2x
4.2 Installation kit M-WRG-M/MB-FR75/2, part no. 5051-22/75
Installation kit M-WRG-M/MB-FR63/2, part no. 5051-22/63
Item Description Qty. Parts
1 Wall box 1x
2 Cardboard insert 1x
3Protectivecoverforwall
box
1x
4 Signal cover 1x
5Protectivecoverforex-
ible pipe connection
2x
6 Flexible pipe connection
withprotectivecover
2x
7 Blind rivet 4x
8Assemblyxingplate 2x
9Spaxscrew4.5x35 6x
10 Protective sleeve 2x
4.3 Options
Item Description Part no.
11 InstallationkitllerpieceM-WRG-M/Fü 5575-5
- Plaster scrim M-WRG-PG 5060

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 8 -
VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
5 Dimensions of the installation kit
Fig.3: Dimensionsoftheinstallationkitwithllerpieceinmillimetres
A Hole for mains cable
B Hole for control cable (only needed for certain ventilation units, see Tab. 1 on page 13
6 Tools and equipment required
— Riveter
— Sealingtape,30mmwideforinstallingtheexiblepipes,e.g.Coroplast
— Wedgesforxingthewallbox,8x
— Wedgesforxingthellerpiece,ifnecessary,4x
— Setofcross-headscrewdrivers
— Wall chaser
— Expandingfoam(“exactgap”foamtoEnEVstandardsisrecommended)
— Styrofoamsaw
— Spirit level
NO TE
Iftheinstallationkitistoberetrospectivelyinstalledinasolidwall,youwillneedadditionaltoolsto
breakthroughthewall.

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 9 -
VENTILATION & HEAT RECOVERY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
7 Installing the installation kit
WARNING
Follow the relevant accident prevention regulations
► Followtheaccidentpreventionregulationswhensettinguptheinstallationlocation.
►Protect the outside area against falling parts.
7.1 Fixing the xing plate to the wall box
► UsetheSpaxscrewstoxthexingplate(seeFig.4andFig.5).
Fig.4: M-WRG-M/MB-FR75(63)/1, Fixing the
xingplateforexhaustairor supply air
Fig.5: M-WRG-M/MB-FR75(63)/2,Fixingthexing
plates for exhaust air and supply air
7.2 Breaking through the wall
Thewallbreakthroughcaneitherbeincludedwhenplanninganewbuildorsubsequentlymadein
thesolidwall.
7.2.1 Planning the wall breakthrough for new builds
► Commissionanarchitectordesignprofessionaltoincludethewallbreakthroughatasuitable
pointintheconstructiondrawingandexecuteitwhenconstructingthebuildingshell.
Therearetwopossibleversionsofthewallbreakthrough:
— Wallbreakthroughwithrecess(seeFig.6)forinstallationkitwithoutllerpiece
M-WRG-M/Fü
— Full-widthwallbreakthrough(seeFig.7)forinstallationkitwithllerpiece
M-WRG-M/Fü

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
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VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
Fig.6: Wall breakthrough for installation kit without
llerpiece,dimensionsinmillimetres
Fig.7: Wall breakthrough for installation kit with
llerpiece,dimensionsinmillimetres
7.2.2 Breaking through an existing wall
WARNING
Danger due to damaging supply lines and changing the stress loadings
► Makesurethattherearenosupplylinesinthevicinityofthewallbreakthrough(e.g.gas,
waterorpower).
► Makesurethatthewallbreakthroughdoesnotaffectthelocalstaticloadingrequirements.
►Fit a lintel if necessary.
► Breakthroughthewall.Therearetwopossibleversionsofthewallbreakthrough:
— Wallbreakthroughwithrecess(seeFig.6)forinstallationkitwithoutllerpiece
M-WRG-M/Fü
— Full-widthwallbreakthrough(seeFig.7)forinstallationkitwithllerpiece
M-WRG-M/Fü

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 11 -
VENTILATION & HEAT RECOVERY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
7.3 Chasing out channels for exible pipe connections
— Installation kit M-WRG-M/MB-FR75(63)/1
withexhaustairor supply air pipe
► Usethewallchasertochaseoutone
channel180mmwideand90mm
deepasfarastheexiblepipeoutlet
in the ceiling (see Fig. 8) for either the
exhaust air pipe (item 1 in Fig. 8) or
the supply air pipe (item 2 in Fig. 8).
— Installation kit M-WRG-M/MB-FR75(63)/2
withexhaustairand supply air pipe
► Usethewallchasertochaseouttwo
channels180mmwideand90mm
deepasfarastheexiblepipeoutlet
in the ceiling (see Fig. 8) for the ex-
haust air pipe (item 1 in Fig. 8) and the
supply air pipe (item 2 in Fig. 8).
► Checkthattheinstallationkittseasilyinto
thewallbreakthrough.
►Check that the installation kit can be
pushedfarenoughintothewallbreakthroughforthefrontsurfaceofthewallboxtoend
ushagainstthesolidwallandextend15mmbeyondtheplasteringtrim.
Fig.9containsasamplelayoutfortheexible
pipes.
NO TE
Thedimensionsofthechannelsfortheexible
pipesare:
— 180mmwide
— 90 mm deep
NO TE
► Observethefollowingrecommendations
whenusingexiblepipesasthiswillavoid
unintentionalpressurelossesintheexible
pipes.
— Asfaraspossible,useexiblepipeswithnominaldiameterDN75.
— Alwaysconnecttwoexiblepipestotheexiblepipeconnection.
— Runthetwoexiblepipesofaexiblepipeconnectioninparalleltooneanother.
— Minimisethenumberofbendsintheexiblepipes.
Fig.8: Chasingoutchannelsforexiblepipe
connections, dimensions in millimetres
Fig.9: Flexible pipe layout planning exam-
ple, dimensions in millimetres

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 12 -
VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
7.4 Chasing out channels for connecting cables
►Chase one channel for the mains cable
(item 1 in Fig. 10) and one for the control
cable,ifrequired(item3inFig.10).
NO TE
— A separate channel is needed for the con-
trol cable.
— ThewallchannelsinFig.10areshownby
wayofexample.Alternativecableducts
areshownasdashedlines(items2and4
inFig.10).Forthesubsequentelectrical
installationwork,werecommendrunning
the mains cable from the left and the con-
trolcable(ifused)fromtherightatthewall
breakthrough.
7.5 Running the connecting cables
DANGER
Potentially fatal voltages.
— Theelectricalinstallationworkmustonlybe
carriedoutbyaqualiedelectrician.
— TheVDEregulationsoranyspecialsafety
regulations applicable in your country apply
totheelectricalinstallationwork.
NO TE
Youwillnddetailsofthetypesofmainscable
and control cable suitable for each ventilation unit
in Tab. 1 on page 13
►Run the mains cable (item 1 in Fig. 11) and
thecontrolcable,ifrequired(item2inFig.
11). The cables should extend roughly 250
mmbeyondthewall.
►Fix the mains cable and the control cable (if
required)inposition.
Fig.10: Chasing out channels for connecting
cables
Fig.11: Running the connecting cables,
dimensions in millimetres

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 13 -
VENTILATION & HEAT RECOVERY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
Part no. Type of ventilation unit Type of mains cable Type of control cable
5010
5030
5030-2
5031-1
5031-2
5032-1
5032-2
M-WRG-S
M-WRG-K
M-WRG-K/FC
M-WRG-K/ZNH-F
M-WRG-K/ZNH-FC
M-WRG-K/LCD-F
M-WRG-K/LCD-FC
NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
-
5010-5 M-WRG-S/BM NYM-J 5 x 1.5 mm2-
5016-1-0 M-WRG-S/Z-S NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
J-Y (St) Y 4 x 2 x 0.6 mm2or
J-Y (St) Y 4 x 2 x 0.8 mm2
5016-1-1
5016-1-1-1
5016-1-1-2
M-WRG-S/Z-T
M-WRG-S/Z-T-F
M-WRG-S/Z-T-FC
NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
J-Y (St) Y 10 x 2 x 0.6 mm2or
J-Y (St) Y 10 x 2 x 0.8 mm2
5016-2-0 M-WRG-S/Z-A NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
J-Y (St) Y 4 x 2 x 0.6 mm2or
J-Y (St) Y 4 x 2 x 0.8 mm2
5016-1-2
5016-1-2-1
5016-1-2-2
5016-2-2
M-WRG-S/Z-KNX
M-WRG-S/Z-KNX-F
M-WRG-S/Z-KNX-FC
M-WRG-S/Z-EIB
NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
J-Y (St) Y 2 x 2 x 0.8 mm2or
EIB-Y (St) Y 2 x 2 x 0.8 mm2
5016-2-1 M-WRG-S/Z-24 NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
J-Y (St) Y 5 x 2 x 0.6 mm2
J-Y (St) Y 5 x 2 x 0.8 mm2
5013
5014-1
5014-2
M-WRG-S 485
M-WRG-S 485-TF
M-WRG-S 485-TFC
NYM-0 2 x 1.5 mm2or
NYM-J 3 x 1.5 mm2
J-Y (St) Y 3 x 2 x 0.6 mm2or
J-Y (St) Y 3 x 2 x 0.8 mm2
Tab.1: Types of mains cable and control cable for each ventilation unit type
7.6 Inserting the wall box
►Remove the protective cover (item 1 in Fig.
12) and the cardboard insert (item 2 in Fig.
12)fromthewallbox(item5inFig.12).
►Thread the mains cable (item 3 in Fig. 12)
through the hole A (item A in Fig. 12).
NO TE
HoleBforthecontrolcableissealedwhenthe
unit is supplied.
Fig.12: Insertingthewallbox

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M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
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VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
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[email protected] · www.meltem.com
► Ifnecessary,useascrewdrivertopunchthroughthesealedhole(itemBinFig.12).
► Threadthecontrolcable,ifrequired(item4inFig.12)throughtheholeB(itemBinFig.12).
► Pushthewallbox(item.5inFig.12)fullyintothewallbreakthrough.
7.7 Inserting the cardboard insert and protective cover
►Place the cardboard insert (item 1 in Fig.
13)inthewallbox(item4inFig.13).
►Insert the protective cover (item 2 in Fig.
13)intothewallbox(item4inFig.13)as
farasitwillgo.
►Check that the red signal cover (item 3 in
Fig. 13) is seated in the protective cover.
7.8 Fixing the wall box
► Fixthewallbox(item1inFig.14)inposi-
tioninthewallbreakthroughusingwedges
(item 2 in Fig. 14).
►Use the spirit level (item 3 in Fig. 14) to
alignthewallboxsothatitisperpendicular
andushwiththewall.
NO TE
► Makesurethatthewallboxisperpendicu-
larasthisistheonlywaytoensurethatany
condensationwillbecarriedoutsidebythe
2° pipe fall.
► Ifyouareusingthellerpiece,xitinplace
ontheouterwallusingwedges.
Fig.13: Inserting the cardboard insert and pro-
tective cover
Fig.14: Fixingthewallbox

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 15 -
VENTILATION & HEAT RECOVERY
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Am Hartholz 4 · D-82239 Alling
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VENTILATION THE RIGHT WAY
NO TE
The plastering trim is 15 mm deep (see Fig. 15).
►If the depth of plaster should be more than
15mm,positionthewallboxsothatit
protrudessufcientlyoutofthesolidwall.
If you do not do this, there is a risk that the
ventilationunitwillnotworkcorrectly.
► Iftheinteriorwallisnotperpendicularor
at,alignthefrontsurfaceoftheplastering
trim (item 1 in Fig. 15) parallel to a plaster
stop bead running vertically.
7.9 Filling gaps around the wall box with foam
NO TE
► Checkthatthewallboxisseatedcorrectly.
Onceyouhaveusedthefoam,youwillnot
beabletoalignthewallboxfurther.
► Fillthegapsbetweenthewallboxandwall
breakthrough all around and continuously
withexpandingfoam(item1inFig.16)or
using another insulating material.
►Once the foam has hardened, remove any
wedgesthatextendbeyondthesolidwall.
7.10 Cutting exible pipes to length
►Remove the red protective cover (item 1 in
Fig.17)fromtheexiblepipeconnection
(item 3 in Fig. 17).
► Shortentheexiblepipes(item2inFig.17)
sothattheexiblepipeconnection(item3
inFig.17)withtheexiblepipesinserted
canbepushedeasilyintothexingplate
(item 4 in Fig. 17).
Fig.15: Depth of plastering trim 15 mm
Fig.16: Fillinggapsaroundthewallbox
withfoam
Fig.17: Cuttingexiblepipestolength

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
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VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
7.11 Inserting exible pipes into the exible pipe connection
► Inserttheexiblepipesintotheopenings
intheexiblepipeconnectiononthewall
boxandsealthejoinwithalayerofseal-
ingtape30mmwide(item1inFig.18)or
insert sealing rings. These are available as
accessories M-WRG-FR-DR75 or M-WRG-
FR-DR63 for the corresponding nominal
diameter.
► Inserttheexiblepipeconnectionintothe
xingplate.
NO TE
► Runtheexiblepipeswithoutforcingor
stresses.
► Fixtheexiblepipesinplacewithexpand-
ingfoam.Thiswillimproveboththeseal
and the insulation.
7.12 Riveting the exible pipe connection
to the xing plate
► Removetheprotectivecoverfortheexible
pipe connection (item 1 in Fig. 19).
► Usetherivetertoxtheexiblepipecon-
nection(item2inFig.19)tothexingplate
(item4inFig.19)withtwoblindrivets(item
3 in Fig. 19).
►Push the protective cover (item 1 in Fig. 19)
backintotheexiblepipeconnection(item
2 in Fig. 19).
7.13 Plastering the wall box and exible
pipes on the inside
►Make sure that the signal cover (item 1 in
Fig. 20) is seated in the protective cover
(item 2 in Fig. 20).
►Make sure that the protective covers (item
3inFig.20)areseatedintheexiblepipe
connections.
►Cut off any excess expanding foam on the
wallboxandexiblepipes.
Fig.18: Fixingaexiblepipeconnectionwith
sealing tape
Fig.19: Rivetingtheexiblepipeconnectionto
thexingplate
Fig.20: Plasteringthewallboxontheinside

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 17 -
VENTILATION & HEAT RECOVERY
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Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
► ApplytheplasterscrimM-WRG-PG(item4inFig.20onpage16)tothewallboxandthe
solidwall.
► Covertheexiblepipeswithplasterscrim.
NO TE
Applyingplasterscrimwillpreventcrackssubsequentlyformingintheplaster.
► Plasterthesolidwall.
7.14 Aligning the wall box on the outside
► Fillthegapsbetweenthewallboxandwall
breakthrough all around and continuously
withexpandingfoamorusinganotherinsu-
lating material.
— Ifthesolidwallisless than36.5cmthick:
► UseaStyrofoamsawtocutoffthe
excesswallbox(item1inFig.21and
Fig.22)andllerpiece,ifnecessary
(item 2 in Fig. 22), so that they are
ushwiththesolidwalloranyinsula-
tion.
— Ifthesolidwallismore than36.5cmthick:
► Compensateforthickerwallswith
continuouspipes.Forwallsthatare
60cmthickormore,youwillneed100
cm long supply and exhaust air pipes
(M-WRG-LR100,partno.5580).
NO TE
The pipes must be continuous. Pipes that have
beenjoinedmustnotbeusedasthereisariskof
allowingcondensationtopenetratethemasonry.
Fig.21: Aligningthewallboxwith-
outllerpiece
Fig.22: Aligningthewallboxwith
llerpiece

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
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VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
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7.15 Plastering the wall box on the outside
►Insert the protective sleeves (item 1 in
Fig. 23 and Fig. 24). They should extend
beyondthesolidwallsothattheywillend
ushwiththesubsequentplastercoat.The
protective sleeves provide the bonding sur-
face for the external plaster.
►Apply the plaster scrim (item 2 in Fig. 23
andFig.24)totheoutsideofthewallbox,
to the masonry and to the facade insulation.
NO TE
Applyingplasterscrimwillpreventcrackssubse-
quentlyformingintheplaster.
► Plastertheouterwall. Fig.23: Plasteringthewallboxwith-
outllerpiece
Fig.24: Plasteringthewallboxwith
llerpiece

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
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VENTILATION & HEAT RECOVERY
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VENTILATION THE RIGHT WAY
7.16 Preparing the wall box for connecting the ventilation pipes
Fig.25: Wall box plastered on the
inside
Fig.26: Wall box plastered on the
outside
— Workontheinternalwall:
►Remove the signal cover (item 1 in Fig. 25).
►Use a blade to score the plaster on the inside of the plastering trim (item 2 in Fig. 25).
►Carefully remove the protective cover (item 3 in Fig. 25).
►Remove the protective cover over the supply air duct (item 4 in Fig. 25) and / or exhaust
air duct (item 5 in Fig. 25).
— Workontheexternalwall:
► Removethetwoprotectivesleeves(item1inFig.26).
►Chamfer both pipe breakthrough edges (item 2 in Fig. 26) to roughly 5x45° to create
enough space for the silicone bead.
7.17 Inserting the ventilation pipes
► Pushthetwoventilationpipes(item1inFig.
27)intotheopeningsinthewallboxuntil
theyendush(item2inFig.27).
► Ontheouterwall,marktheexcesslength
oftheventilationpipestosuittheouterwall
terminal.Seethefollowingtable:
Outer wall terminal Excess
Stainless steel pod, M-WRG-ES 5-10 mm
Stainless steel pipe set, M-WRG-
ESR
25 - 30 mm
Stainless steel louvred design
(surface-mount) M-WRG-ESG/AP
5 mm
Stainless steel louvred design
(ush-mount)M-WRG-ESG/UP
depends on
the thickness
of the plaster
Fig.27: Inserting the ventilation
pipes

Installation Manual
M-WRG-M/MB-FR75/1 / FR75/2 / FR63/1 / FR63/2
- 20 -
VENTILATION & HEAT RECOVERY
VENTILATION THE RIGHT WAY
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
► Removetheventilationpipesfromtheopeningsinthewallbox.
►Shorten the ventilation pipes to the marked length.
►Deburr the inner and outer ends of the ventilation pipes.
NO TE
If you do not deburr the pipes there is a risk of damaging the seals at the ventilation unit and outer
wallterminal.
► Pushtheventilationpipesbackintothewallboxuntiltheyareush.
► Usesiliconetosealtheventilationpipesintothefacadeattheouterwall.
► Fillthechamfersofthepipebreakthroughedgesall-roundwithsilicone.
8 Installing the ventilation unit
NO TE
Installationoftheventilationunitinthewallboxis
describedinthe“Ventilationunitinstallationman-
ual M-WRG-S and M-WRG-K”, part no. 5300-10.
9 Flexible pipe layout example Fig.28: Ventilationunitinstalled
Cover
M-WRG-VS110-IB
Ceiling box
M-WRG-DK 2x75/100
M-WRG-DK 2x63/100
Flexible pipe
2x DN 75 / 2x DN 63