Meltem M-WRG-II ES-P User manual

Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
INSTALLATION MANUAL
HOME VENTILATION WITH HEAT RECOVERY
Outer wall terminals
M-WRG-II ES (-P, -PK)
M-WRG-II KSR (-1, -2)
for tting on external walls
Part no. 744005EN Week 13/2020 EN

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 2 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
Contents
1 Introduction ................................................................................................................... 3
1.1 Notes on this installation manual .................................................................................... 3
1.2 Description ...................................................................................................................... 3
1.2.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK) ...................................... 3
1.2.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2) ............................................ 4
1.3 Target group .................................................................................................................... 4
1.4 Storage ........................................................................................................................... 4
1.5 Environmentally-friendly disposal ................................................................................... 4
1.6 Revision index ................................................................................................................ 4
1.7 Explanation of the symbols used .................................................................................... 4
1.8 Supplementary documents ............................................................................................. 5
2 Safety instructions ....................................................................................................... 6
2.1 Hazardclassication ....................................................................................................... 6
2.2 Notes on using the ventilation units safely ...................................................................... 6
2.2.1 Fire protection ................................................................................................................. 6
2.2.2 Operationwithreplaces ................................................................................................ 6
2.2.3 Installation in wet areas .................................................................................................. 7
2.2.4 Condensate drain ........................................................................................................... 7
2.2.5 Starting and using the ventilation unit ............................................................................. 7
2.3 Notes on using the ventilation units ................................................................................ 7
2.4 Note on use in conjunction with room air conditioners ................................................... 8
2.5 Intended use ................................................................................................................... 8
3 Items supplied ............................................................................................................... 9
3.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK) ...................................... 9
3.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2) .......................................... 10
4 Dimensions .................................................................................................................. 11
4.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK) ..................................... 11
4.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2) .......................................... 12
5 Tools and equipment required ................................................................................... 12
5.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK) .................................... 12
5.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2) .......................................... 12
6 Installing the outer wall terminal ............................................................................... 13
6.1 Installing the outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK) ............... 14
6.1.1 Checking the ventilation pipes ...................................................................................... 14
6.1.2 Drilling the holes for the outer wall terminal .................................................................. 14
6.1.3 Attaching the outer wall terminal ................................................................................... 15
6.2 Installing the outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2) ..................... 16
6.2.1 Checking the ventilation pipes ...................................................................................... 16
6.2.2 Applying Vaseline .......................................................................................................... 16
6.2.3 Attaching the outer wall terminals ................................................................................. 17
7 Cleaning and care instructions ................................................................................. 18
7.1 Stainless steel outer wall terminals (M-WRG-II ES) ..................................................... 18
7.2 Powder-coated outer wall terminals (M-WRG-II ES-P, M-WRG-II ES-PK) ................... 18
7.3 Outer wall terminal plastic pipe set (M-WRG-II KSR) ................................................... 18

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 3 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
1 Introduction
1.1 Notes on this installation manual
This installation manual contains important information that should be followed when
installing the outer wall terminals.
►Read all the instructions carefully before installing the outer wall terminals to avoid
possible risks and mistakes.
►When assembly is complete, give these instructions to the home owner, caretaker or
property manager.
►These instructions are part of the product. Keep the instructions in a safe place for
future reference.
WARNING
►Follow ALL danger and warning instructions and notes on precautionary measures.
►Read section “2 Safety instructions” on page 6 carefully.
1.2 Description
These instructions describe how to install the outer wall terminals M-WRG-II ES (-P, -PK)
and M-WRG-II KSR (-1, -2) on an external wall.
1.2.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK)
—M-WRG-II ES,
outer wall terminal stainless steel
pod, material: stainless steel 1.4301,
part no. 730000
—M-WRG-II ES-P (*),
outer wall terminal stainless steel
pod, material: stainless steel 1.4301,
colour: white powder-coated (similar
to RAL 9016),
part no. 730001
—M-WRG-II ES-PK (*),
outer wall terminal stainless steel
pod, material: stainless steel 1.4301,
colour: colourless matt powder-
coated (R533-0092),
part no. 730002
(*) We recommend this version for use where the outdoor air is polluted or saline (e.g. industrial regions or
near the coast).
Fig. 1: Outer wall terminal stainless steel pod
M-WRG-II ES

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 4 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
1.2.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2)
—M-WRG-II KSR-1,
outer wall terminal plastic pipe set,
material: ASA, colour: white, similar
to RAL 9016,
part no. 730100
—M-WRG-II KSR-2,
outer wall terminal plastic pipe set,
material: ASA, colour: grey, similar to
RAL 7012,
part no. 730101
1.3 Target group
The activities described in this manual must only be carried out by specialised personnel
withthefollowingqualications:
— Training in local safety requirements
— Knowledge of the relevant standards and directives
— Knowledge and observance of this document and all the safety instructions
1.4 Storage
►Store the outer wall terminal in its original packaging in a dry place where the temper-
ature ranges between 0 °C and +40 °C.
1.5 Environmentally-friendly disposal
The outer wall terminals must not be disposed of in the residual waste bin.
►Dispose of the outer wall terminal in accordance with the waste disposal regu-
lations that apply on site.
1.6 Revision index
Edition Manual Date
3rd edition Installation manual for outer wall terminals
M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
Week 13/2020 EN
1.7 Explanation of the symbols used
►This symbol indicates an action to be taken.
— This symbol indicates a list.
Fig. 2: Outer wall terminal plastic pipe set
M-WRG-II KSR-1

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 5 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
1.8 Supplementary documents
Manual Part no.
Installationmanualforush-mountinstallationkitwithplasteringtrim
(solid construction) M-WRG-II M/MB
744001EN
Installationmanualforush-mountinstallationkitM-WRG-IIM
(frame construction)
744002EN
Installationmanualforush-mountinstallationkitM-WRG-IIM-U2744003EN
Installation manual for M-WRG-II ventilation units 744004EN
Operating instructions for M-WRG-II P (-F, -FC), M-WRG-II E (-F, -FC)
ventilation units
744007EN
Table 1: Supplementary documents

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 6 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
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 according to the level of danger.
2.1 Hazard classication
DANGER
The signal word designates a hazard with a high degree of risk which, if it is not
avoided, will result in death or severe injury.
WARNING
The signal word designates a hazard with a medium degree of risk which, if it is not
avoided, will result in death or severe injury.
CAUTION
The signal word designates a hazard with a low degree of risk which, if it is not avoided,
could result in minor or moderate injury.
NOTICE
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
2.2.1 Fire protection
Followthegenerallyapplicableresafetyrequirementswhenplanningandinstallingthe
unit.
2.2.2 Operation with replaces
— An additional safety device (underpressure or differential pressure monitor) is needed
to monitor operation when M-WRG-II ventilation units are used in conjunction with
replaces.
— 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.
— Correct use of a ventilation system set up with the decentralised ventilation unit
requiresthepossibilityofshuttingoffcombustionairpipesanduesystemsforsolid
fuelreplacesduringperiodsinwhichthereplacesarenotinuse.

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 7 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
2.2.3 Installation in wet areas
The following rules from DIN VDE 0100-701/702 (IEC 60364-7-701) apply to installation
of M-WRG-II ventilation units in wet areas:
— Protection zone 0: The unit must NOT be installed in this area.
— Protectionzone1:Theunitmustonlybeinstalledwiththe“integratedintowall”U2
variant. The extract and supply air valves must be installed in the top part of the wall
or in the ceiling.
— Protection zone 2 and other zone: The unit may be installed in this area.
Country-specicstandards/regulationsonobservingtheprotectionzonesforinstallation
in rooms with bathtub or shower must also be followed.
2.2.4 Condensate drain
The heat recovery process in our ventilation units causes condensation. This condensa-
tion is dissipated via the exhaust air pipe.
— If M-WRG-II P ventilation units are used, a condensate drain should be provided.
— With M-WRG-II E ventilation units (with enthalpy heat exchanger) there is no conden-
sationifthefollowingrequirementsarefullled:
— The ventilation unit is operated as described in “Intended use” (see section 2.5 on
page 8) and the “Rules for correct usage” chapter of the operating instructions.
— There is no exceptional loading due to very high atmospheric humidity.
2.2.5 Starting and using the ventilation unit
— Do not start up the ventilation unit until it is fully installed.
— Always make sure that the cover is closed and locked in place before using the venti-
lation unit.
— Please note that the ventilation unit must not be used without the outer wall terminal
for safety reasons.
2.3 Notes on using the ventilation units
— This unit may be used by children from 8 years old and by persons of restricted phys-
ical, sensory or mental abilities or persons lacking experience and knowledge if they
are supervised or have been instructed in how to use the unit safely and understand
the associated hazards. Do not allow children to play with the unit. Cleaning and user
maintenance must not be carried out by children unless they are supervised.
►Follow the regulations applicable in your country concerning the age from which
people may be permitted to operate the ventilation unit.

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 8 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
— The ventilation unit must always be freely accessible for operation and maintenance.
►Make sure that the ventilation unit is not covered or obstructed when the room is
subsequently decorated and furnished, otherwise it cannot be operated and it will
notbepossibletoreplacetheairlters.Youshouldthereforemaintainaclearance
of at least 15 cm in front of the ventilation unit cover.
►Make sure that the supply and extract air openings are not covered when the room
is subsequently decorated and furnished, otherwise the ventilation unit’s functions
may be impaired.
2.4 Note on use in conjunction with room air conditioners
Condensation may form in the ventilation unit if the outdoor air temperature and humidity
are high, but the room temperature is cool.
For these conditions, we recommend using the M-WRG-II E ventilation unit with enthalpy
heat exchanger. This has the advantage of removing both sensible and latent heat from
thesupplyair.Asaresult,theairisdehumidiedaswellasbeingprecooled.Theroom
air conditioner needs to do less work, so the user saves money on the reduced power
consumption.
2.5 Intended use
— The outer wall terminal should only be used together with ventilation units from the
Meltem M-WRG-II series.
— The outer wall terminal is attached to the outdoor air pipe and exhaust air pipe on the
external wall.
— The ventilation unit is designed to ventilate living spaces and rooms used for
quasi-residential purposes. The ventilation unit is installed in a perpendicular position
in the external wall. Any different or more extensive usage will be regarded as contrary
to the intended use.
— The intended use also includes compliance with all the notes in the operating instruc-
tions.
— Theventilationunitmustnotbeoperatedwithoutairltersorouterwallterminal.
— The ventilation unit is intended for use in rooms with normal room air humidity levels
of approx. 40 % to 70 % RH. It must not be installed in rooms in which the relative
humidity during operation constantly exceeds 80 %.
— The ventilation unit’s functions may be impaired or the unit may be damaged in rooms
with a lot of dust (e.g. model-making) or corrosive gas emissions (e.g. blueprint shop,
cleaning).
— For any use contrary to the intended use, Meltem Wärmerückgewinnung GmbH & Co. KG
shall accept no liability for any damage that may occur and offers no warranty that the
ventilation unit will work perfectly and correctly.

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 9 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
3 Items supplied
3.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK)
Fig. 3: Items supplied with the outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK)
1
2
345
Item Description Quantity
1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK) 1x
2 Drilling template 1x
3 Vaseline, tube 1x
4Dowel6x30mmforttingtobrickwall 4x
5 Screws 4.0 x 40 mm, stainless steel 4x
- Installation manual 1x
NOTICE
— Thexingmaterialssuppliedareintendedforxingtheouterwallterminaltobrick
walls.
►For other wall structures, contact your facade constructor to ensure that the
outerwallterminalisttedcorrectly.
— Würth insulation anchors with setting tool, part no. 090350050, for example, are
suitableforxingtheouterwallterminaltorigidfoamboards.

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 10 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
3.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2)
Fig. 4: Items supplied with the outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2)
12
3
Item Description Quantity
1 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2) 1x (2 per pack)
2 Self-tapping Torx screws TX10, 2.9 x 6.5 mm 4x
3 Vaseline, tube 1x
- Installation manual 1x

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 11 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
4 Dimensions
4.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK)
169
365
79
18
194,5
320
110
63
50,5 59,5
Fig. 5: Dimensions of the outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK),
dimensions in millimetres

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 12 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
4.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2)
129
53
102
126
121
Fig. 6: Dimensions of the outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2),
dimensions in millimetres
5 Tools and equipment required
5.1 Outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK)
— Cross-head screwdriver
— Hammerdrillwith6mmmasonrybitforttingtheouterwallterminalonbrickwalls.
Make sure you use suitable tools for other wall structures.
— Spirit level
5.2 Outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2)
— Torx screwdriver TX10

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 13 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6 Installing the outer wall terminal
NOTICE
— The unit must be installed in accordance with the generally acknowledged rules of
technology.
— Connections with adjacent components must be formed to absorb movements
between the contact surfaces.
— Sealanyconnectionsthatareexposedtodrivingrainwithtapes,prolesorsealants
suchthattheyoffersufcientprotectionagainsttheexpectedconditions.
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.
NOTICE
— We recommend that you wear gloves when installing the stainless steel outer wall
terminal. In this way you will avoid transferring grease from your skin to the outer
wall terminal. Dust and other soiling can then collect on the grease deposits, which
willencourageashrusting(seealsosection“7Cleaningandcareinstructions”on
page 18).
— Donotremovetheprotectivelmfromtheouterwallterminaluntiltheinstallationis
complete.
NOTICE
Thefollowingrequirementsmustbefullledbeforetheouterwallterminalistted:
— The external wall has been plastered. The plaster forms the windtight layer on the
external wall.
— The ventilation pipes have been shortened to the correct length.
— The ventilation pipes have been pushed into the openings in the installation kit so
thattheyendushwiththeinsideoftheinstallationkit.
— The ventilation pipes project to the required length over the external plaster.
— The ventilation pipes have been glued into the facade using permanently elastic
sealant.
— Thechamferededgesofthepipeopeningshavebeenlledall-roundwithperma-
nently elastic sealant. This will prevent moisture penetrating into the masonry.
— The cut surfaces of the ventilation pipes must be deburred. If this is not the case,
there is a risk that the seals on the outer wall terminal will be damaged.

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 14 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6.1 Installing the outer wall terminal stainless steel pod M-WRG-II ES (-P, -PK)
6.1.1 Checking the ventilation pipes
►Check that the ventilation pipes
protrude 5 - 10 mm beyond the
external plaster (see item 1 in Fig. 7).
►Check that the cut surfaces of the
ventilation pipes have been deburred
(see item 2 in Fig. 7).
NOTICE
The cut surfaces of the ventilation
pipes must be deburred. If this is not
the case, there is a risk that the seals
on the outer wall terminal base plate
will be damaged.
6.1.2 Drilling the holes for the outer wall
terminal
►Press the pre-punched cut-outs
(item 1 in Fig. 8) for the ventilation
pipes out of the drilling template
(item 2 in Fig. 8).
►Position the drilling template correctly
ontheventilationpipesandushwith
the facade.
NOTICE
— Note the “OBEN (TOP)” (item 3
in Fig. 8) printed on the drilling
template.
— Thexingmaterialssuppliedare
intendedforxingtheouterwall
terminal to brick walls.
►Note the information on
page 9 concerning other
facade structures.
► Usethe6mmmasonrybittodrillfourholes,roughly40mmdeep,intheexternalwall
at the points indicated on the drilling template (item 4 in Fig. 8).
►Remove the drilling template.
►Insert the four dowels provided (item 5 in Fig. 8) into the holes.
Fig. 7: Checking the ventilation pipes
1
5 - 10 mm
2
Fig. 8: Drilling the holes
1
2345

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 15 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6.1.3 Attaching the outer wall terminal
►Remove the three cross-head screws
3.5 x 16 (item 1 in Fig. 9) at the top of
the outer wall terminal.
►Slide the cover (item 2 in Fig. 9) up
roughly 10 mm. Lift the cover forward
and away from the base plate (item 3
in Fig. 9).
►Fully coat both 4 mm wide sealing
surfaces (item 4 in Fig. 9) on the
inside with Vaseline.
►Carefully position the base plate
(item 1 in Fig. 10) correctly on the
ventilation pipes. Be careful not to
damage the seals.
► Useaspiritleveltoalignthebase
plate vertically (see item 2 in Fig. 10).
► Usethefourscrewsprovidedtox
the base plate (item 3 in Fig. 10).
►Position the cover (item 1 in Fig. 11)
on the base plate so that the tabs of
the cover (item 2 in Fig. 11) slide into
the guides on the base plate (item 3
in Fig. 11).
► Usethethreecross-headscrews
3.5x16(item4inFig.11)toxthe
cover.
► Removetheprotectivelmsfromthe
cover (this does not apply to powder-
coated outer wall terminals).
►Clean the outer wall terminal (see
chapter 7 on page 18).
Fig. 9: Removing the cover
1
2
3
4
Fig. 10: Fixing the base plate
1
2
3
Fig. 11: Outer wall terminal installed
1
2
3
4

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 16 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6.2 Installing the outer wall terminal plastic pipe set M-WRG-II KSR (-1, -2)
NOTICE
Multiple plastic pipe sets may only be installed one above the other if the ventilation
units have a condensate connection or if units with enthalpy heat exchangers are used
(M-WRG-II series only).
6.2.1 Checking the ventilation pipes
►Check that the ventilation pipes
protrude 20 - 27 mm beyond the
external plaster (see item 1 in
Fig. 12).
►Check that the cut surfaces of the
ventilation pipes have been deburred
(see item 2 in Fig. 12).
NOTICE
The cut surfaces of the ventilation
pipes must be deburred. If this is
not the case, there is a risk that the
seals on the outer wall terminal will be
damaged.
6.2.2 Applying Vaseline
► UnscrewthetwoTorxscrews(item1
in Fig. 13) from the outer wall termi-
nals until you can no longer see the
tips of the screws in the holes (item 2
in Fig. 13).
NOTICE
Do not unscrew the screws completely
from the holes otherwise there is a risk
that you may lose them.
►Apply the Vaseline provided to the
inside of the black sealing ring (item 3
in Fig. 13) on each of the outer wall
terminals.
Fig. 12: Checking the ventilation pipes
1
20 - 27 mm
2
Fig. 13: Applying Vaseline
1
2
3
2
1

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 17 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6.2.3 Attaching the outer wall terminals
►Carefully push the outer wall termi-
nals (item 1 in Fig. 14) onto the venti-
lation pipes (item 2 in Fig. 14). Be
careful not to damage the seals.
►Direct the drip edges (item 3 in
Fig. 14) downwards.
►Press each outer wall terminal
against the outer wall so that the
plasticring(item4inFig.14)liesat
against the outer wall. Hold the outer
wall terminal in this position.
►Carefully screw the upper and lower
Torx screws (item 5 in Fig. 14) in as
far as they will go. They will self-tap
intotheventilationpipes,thusxing
the outer wall terminal in position.
NOTICE
Iftheouterwallterminaldoesnotlieushagainsttheexternalwall,sealthegap
between the outer wall terminal and the external wall with a bead of permanently elastic
sealant. There is a risk that the plaster will be damaged if this is not done.
►Clean the outer wall terminal if necessary (see section 7.3 on page 18).
Fig. 14: Attaching the outer wall terminals
1
2
3
4
5
5

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 18 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
7 Cleaning and care instructions
7.1 Stainless steel outer wall terminals (M-WRG-II ES)
NOTICE
The thin and transparent passive coating on the surface protects the stainless steel
against corrosion. However, dust and other soiling from the atmosphere can still be
depositedonthesurface,causingashrusting.
► Donotremovetheprotectivelmfromtheouterwallterminalsuntiltheinstallationis
complete.
►Remove all adhesive residues that remain on the outer wall terminals when you
removetheprotectivelm.
►Clean the outer wall terminals after installation using a soft, lint-free cloth and stain-
less steel cleaner.
► Removeanyashrustthatisalreadypresentusingasoft,lint-freeclothandstainless
steel cleaner.
NOTICE
Corrosioncausedbyashrustisnotcoveredbythewarranty.
► Immediatelyremoveparticlesofiron,metallings,plasterandswarffromthesurface
of the outer wall terminals.
►Remove lime and cement spatter as quickly as possible and before it hardens from
the surface of the outer wall terminals.
►Do not use abrasive cleaning utensils (pan scourers, steel wool, etc.) and do not use
cleaning agents containing chlorine or hydrochloric acid.
7.2 Powder-coated outer wall terminals (M-WRG-II ES-P, M-WRG-II ES-PK)
►Clean the outer wall terminals after installation using a soft, lint-free cloth and mild
soapy water.
► Immediatelyremoveparticlesofiron,metallings,plasterandswarffromthesurface
of the outer wall terminals.
►Remove lime and cement spatter as quickly as possible and before it hardens from
the surface of the outer wall terminals.
►Do not use abrasive cleaning utensils (pan scourers, steel wool, etc.).
7.3 Outer wall terminal plastic pipe set (M-WRG-II KSR)
►Clean the outer wall terminals using a soft, lint-free cloth and mild soapy water.

Installation manual
Outer wall terminals M-WRG-II ES (-P, -PK), M-WRG-II KSR (-1, -2)
- 19 -
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
Space for notes

Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
We have checked the content of this publication for conformity with the unit described in it. There may nevertheless still
be differences, so we cannot guarantee complete accuracy.
The information in this publication is regularly checked and any necessary corrections are made in subsequent editions.
Copyright © Meltem Wärmerückgewinnung GmbH & Co. KG We reserve the right to make changes.
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4
D-82239 Alling
Germany
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Internet: www.meltem.com
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