Meltem M-WRG-II P Series Technical specifications

Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
MAINTENANCE INSTRUCTIONS
HOME VENTILATION WITH HEAT RECOVERY
Ventilation units
M-WRG-II P...
M-WRG-II E...
Maintenance by the user /
Maintenance by a specialist company
Part no. 744015EN Week 52/2020 EN

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
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 ................................................................................................................... 4
1.1 Notes on these maintenance instructions ....................................................................... 4
1.2 Description ...................................................................................................................... 4
1.3 Target group .................................................................................................................... 4
1.4 Nameplate with device number ...................................................................................... 5
1.5 Revision index ................................................................................................................ 5
1.6 Explanation of the symbols used .................................................................................... 5
2 Safety instructions ....................................................................................................... 6
2.1 Hazardclassication ....................................................................................................... 6
2.2 Starting and using the ventilation unit ............................................................................. 6
2.3 Intended use ................................................................................................................... 6
3 Warranty and liability .................................................................................................... 7
4 Controls and indicators on the ventilation unit ......................................................... 7
5 General notes on maintenance ................................................................................... 8
5.1 Airlters .......................................................................................................................... 8
5.1.1 Filter maintenance .......................................................................................................... 8
5.1.2 Choiceoflter ................................................................................................................. 8
5.1.3 Orderinglters ................................................................................................................ 8
5.1.4 Importantnotesonthelterchange ............................................................................... 9
5.2 Cleaning the ventilation unit ............................................................................................ 9
6 Maintenance schedules ............................................................................................. 10
6.1 Device number .............................................................................................................. 10
6.2 Maintenance schedule A – annual maintenance (user) ................................................ 10
6.3 Maintenance schedule B – maintenance every 5 years (specialists only) ..................... 11
7 Spare parts and equipment required ......................................................................... 11
7.1 Maintenance schedule A – annual maintenance ........................................................... 11
7.2 Maintenance schedule B – maintenance every 5 years ................................................ 11
8 Maintenance schedule A – carry out annual maintenance (user) .......................... 12
8.1 Switchventilationunito󰀨atmainsswitch ..................................................................... 12
8.2 Remove cover from ventilation unit and clean .............................................................. 12
8.3 Removeextractairlter,cleanlterring ....................................................................... 12
8.4 Removeoutdoorairlter,cleanltercover .................................................................. 13
8.5 Check outdoor air pipe for soiling and clean if necessary ............................................ 13
8.6 Cleanlterbaseonextractairsideifnecessary .......................................................... 14
8.7 Clean air grilles or duct adapters .................................................................................. 14
8.7.1 Cleanairgrilles(forsurface-mountorush-mountventilationunitswithoutductwork
connection) ................................................................................................................... 14

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.7.2 Clean duct adapters (for surface-mount ventilation units with ductwork connection) ... 15
8.7.3 Cleanductadapters(forush-mountventilationunitswithductworkconnection) ....... 15
8.7.4 Clean duct adapters (for U2integrated into wall ventilation units) ................................ 15
8.8 Clean supply air ducts on intermediate plate ................................................................ 16
8.9 Check heat exchanger for soiling ................................................................................. 16
8.10 Insertnewextractairlter ............................................................................................. 17
8.11 Insertnewoutdoorairlter ........................................................................................... 18
8.12 Switch on ventilation unit and check functions ............................................................. 19
8.13 Attach unit cover to ventilation unit ............................................................................... 19
8.14 Resetlterchangeindicator ......................................................................................... 20
8.15 Enter completed maintenance in maintenance schedule A .......................................... 20
9 Maintenance schedule B – carry out every 5 years (specialists only) .................. 21
9.1 Switcho󰀨powertotheventilationunit .......................................................................... 21
9.2 Remove cover from ventilation unit and clean .............................................................. 22
9.3 Removeextractairlter ................................................................................................ 22
9.4 Removeoutdoorairlter .............................................................................................. 22
9.5 Remove electronics compartment covers and intermediate plate ................................ 23
9.6 Remove heat exchanger ............................................................................................... 24
9.7 Clean heat exchanger ................................................................................................... 24
9.8 Insert heat exchanger ................................................................................................... 25
9.9 Insert and secure intermediate plate and electronics compartment covers .................. 26
9.10 Cleanatducts/exiblepipes ....................................................................................... 27
9.11 Insertairlters,carryoutfunctiontestandattachunitcover ....................................... 27
9.12 Enter completed maintenance in maintenance schedule B .......................................... 27

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
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 these maintenance instructions
These maintenance instructions contain important information that should be followed
when maintaining ventilation units from the M-WRG-II series.
►Read all the instructions carefully before maintaining the ventilation unit 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 chapter “2 Safety instructions” from page 6 carefully.
1.2 Description
These instructions describe the maintenance of ventilation units from the M-WRG-II
series and refer to the DIN 1946-6 standard.
Maintenanceandcleaningsignicantlya󰀨ecthowtheventilationunitsworkandtheir
e󰀨ectiveness.Correctmaintenancepreventshygieneproblems,preservesthebuilding
structureandhasapositivee󰀨ectontheventilationunit’spowerconsumption.
1.3 Target group
These maintenance instructions are aimed at two target groups:
— Chapters “1 Introduction” to “8 Maintenance schedule A – carry out annual mainte-
nance (user)” are intended for users of the ventilation unit. No special prior knowledge
is needed.
— The activities described in chapter “9 Maintenance schedule B – carry out
every 5 years (specialists only)” must only be carried out by specialised personnel
withthefollowingqualications:
— Trainingandknowledgeofhowtoinspect,cleanandmaintainventilationunits
— Training in the installation and commissioning of electrical devices
— Training in electrical hazards and the local safety requirements
— Knowledge of the relevant standards and directives
— Knowledge and observance of this document and all the safety instructions

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
1.4 Nameplate with device number
Youwillndthenameplatewiththe
device number on the intermediate plate
inside the housing (see item 1 in Fig. 2).
1.5 Revision index
Edition Manual Date
1st edition Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Week 52/2020 EN
1.6 Explanation of the symbols used
►This symbol indicates an action to be taken.
— This symbol indicates a list.
Fig. 1: Nameplate
Fig. 2: Position of the nameplate
1

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
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
These instructions contain 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 Starting and using the ventilation unit
— Do not start up the ventilation unit until it is fully installed.
— Alwaysoperatetheventilationunitwiththeairlterstted.
— Always make sure that the cover is closed and locked in place before using the venti-
lation unit.
2.3 Intended use
— The intended use also includes compliance with all the notes in the maintenance
instructions.
— Theventilationunitmustnotbeoperatedwithoutairltersorouterwallterminal.
— Foranyusecontrarytotheintendeduse,MeltemWärmerückgewinnungGmbH&Co.KG
shallacceptnoliabilityforanydamagethatmayoccurando󰀨ersnowarrantythatthe
ventilation unit will work perfectly and correctly.

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
3 Warranty and liability
The warranty and liability shall be void if the ventilation unit is not maintained as
described in these maintenance instructions.
4 Controls and indicators on the ventilation unit
On the left of the ventilation unit there is a membrane touch pad with 5 buttons (items 1 to
5 in Fig. 3). These buttons are used to set the ventilation levels / programs. The 5 LEDs
(LEDs 1 to 5 in Fig. 3) indicate the status of the ventilation unit. They also display any
faultmessagesorwhetheranairlterneedstobechanged(LED1lightsupcontinu-
ously).
The mains switch (item 1 in Fig. 4) is located behind the unit cover. The unit cover must
be removed in order to access it.
Fig. 3: Membrane touch pad and LEDs on the left
of the unit
1
2
3
4
5
LED 1
LED 2
LED 3
LED 4
LED 5
1
Fig. 4: Mainsswitch,visiblewhenunitcoveris
removed

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
5 General notes on maintenance
5.1 Air lters
5.1.1 Filter maintenance
Theventilationunithasaruntime-controlledltermonitoringfunctionwithvisualdisplay.
Itmonitorsthetimesincethelastairlterchange.Ifthelastairlterchangewasmore
thanoneyearago,thelterchangedisplayisactivatedandapendingairlterchangeis
signalledbyLED1,whichlightsupconstantly(seeFig.3onpage7).
Notoolsareneededtochangetheairlters.
NOTICE
► Followtheinstructionsforchangingtheltersinsection5.1.4onpage9.
5.1.2 Choice of lter
ThefollowingairltersmaybeusedorareavailableforselectionfortheM-WRG-IIventi-
lation units:
Part no. Type Filter type Filter class Application
750010 M-WRG-II FA Outdoor air
lter
ISO ePM1
60% (F7)
E󰀨ectivelyltersoutrespirable
particulatessuchaspollen,
soot and bacteria from dust
class PM1
750020 M-WRG-II FK Activated
charcoallter
(optional for
outdoor air)
ISOePM2,5
55% (F7)
E󰀨ectivelyretainsrespirable
particulatessuchaspollen,
soot and bacteria from dust
classPM2.5,andtheacti-
vated charcoal layer absorbs
odours and harmful gases
suchaspropellants,nitrogen
oxides,ozoneandsolvents
750000 M-WRG-II FS Extract air
lter
ISO Coarse
60% (G4)
E󰀨ectivelyretainscoarse
particulates such as house-
hold dust >PM10
Table 1: Choiceoflter
5.1.3 Ordering lters
Please contact your local or regional dealer for information on ordering
lters.Youwillndthecontactdetailsonourwebsiteatwww.meltem.com
(or using the QR code on this page).
Go to
www.meltem.com

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
5.1.4 Important notes on the lter change
— Neverruntheventilationunitwithoutairlters.
— AlwaysusegenuineMeltemlters.ThesearepreciselymatchedtoyourM-WRG-II
ventilationunits,ensureminimalpressurelossesandwillensurealongservicelife
from your ventilation units.
— DIN1946-6“Ventilationforresidentialbuildings”recommendschangingairlters
everysixmonths.Theairltersforoutdoorairandextractairshouldbereplacedat
leastonceayearonhygienegrounds,ideallybeforethecoldweatherstarts.
— Inhighlevelsofairpollution(e.g.fromroadtra󰀩corindustry,roomswithhighdust
levels)changetheltersevery six months.
— Alwaysreplaceairltersinpairs.Thepermeabilityofbothairltersa󰀨ectsthee󰀩-
ciency and power consumption of the ventilation unit.
— Observethelterchangeindicator(LED1lightsupcontinuously,seeFig.3on
page7)andreplacetheairltersasnecessary.
NOTICE
AnoutdoorairlterfromlterclassISOePM1≥50%(F7)isneededtofullthehygiene
requirementsdenedinVDI6022andDIN1946-6(categoryH).EveryM-WRG-IIventi-
lationunitisequippedwithsuchanairlterasstandard.
5.2 Cleaning the ventilation unit
WARNING
► Switcho󰀨thepowertotheventilationunitbeforecleaning.
► Whencleaning,makesurethatnomoisturepenetratesintotheinsideofthe
housing.
► Neveruseahighpressurecleaner,steamcleanerorsteamjet.
The ventilation unit is made of high quality plastic and requires little care.
► Wipetheoutersurfacesfromtimetotimewithasoft,dampcloth.Usemildsoapy
water. A commercially available plastic cleaner can be used for particularly stubborn
dirt.
NOTICE
► Neveruseacidic,corrosiveorabrasivecleaningagents.

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6 Maintenance schedules
6.1 Device number
► Enteryourdevicenumberonthelinebelow.Youwillndthedevicenumberonthe
nameplate (see item 1 in Fig. 2 on page 5).
Device number: ____________________
6.2 Maintenance schedule A – annual maintenance (user)
Date
Component Activity
Unit cover
Clean
Filter cover
Filter ring
Outdoor air
pipe
Filter base
Air grilles /
duct adapters
Intermediate
plate
Heat
exchanger
Visual
inspection
Outdoor air
lter Replace
Extract air
lter
Supply air
and exhaust
air fan
Function
test
Table 2: Maintenance schedule A – annual maintenance

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
6.3 Maintenance schedule B – maintenance every 5 years (specialists only)
Date
Component Activity
Heat
exchanger Clean
Flat ducts/
exiblepipes
(if present)
Clean
Supply air
and exhaust
air fan
Function
test
Table 3: Maintenance schedule B – maintenance every 5 years
7 Spare parts and equipment required
7.1 Maintenance schedule A – annual maintenance
— 2xreplacementlters,seesection5.1.2onpage8
— Lint-free cloth for cleaning the surfaces of the ventilation unit
— Lint-free cloth for covering the heat exchanger
— Mild soapy water
— Vacuumcleanerwithattachmentforscratch-pronesurfaces,e.g.brushattachment
with natural hair bristles
— Dustermadefromspecialbreswithhandle,e.g.Swi󰀨er
7.2 Maintenance schedule B – maintenance every 5 years
— Container for cleaning the heat exchanger
— Mild soapy water
— Torx screwdriver TX10
— Torx screwdriver TX20
— Vaseline
— Soft cloth on which to place the heat exchanger

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Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8 Maintenance schedule A – carry out annual
maintenance (user)
8.1 Switch ventilation unit o󰀨 at mains switch
► Switchtheventilationunito󰀨atthemainsswitch(item1inFig.4onpage7).
NOTICE
OnventilationunitswiththeM-WRG-IIO/NOFoption,powertotheunitmustbe
switchedo󰀨usingthebuilding’sminiaturecircuitbreaker.
8.2 Remove cover from ventilation unit and clean
► Usingboththumbs,pressthetwo
latches (item 1 in Fig. 5) on the
bottom of the ventilation unit. The
unit cover (item 2 in Fig. 5) will come
away.
► Atthesametime,pushyourindex
ngersintothegapbetweentheunit
coverandhousing,andlifttheunit
cover up and away from the housing.
►Clean the unit cover on all sides with
a damp cloth and mild soapy water.
8.3 Remove extract air lter, clean lter ring
► Turnthelterring(item1inFig.6)
using the hand grip (item 2 in Fig. 6)
anti-clockwiseuntilthelterringis
released from the retainers.
► Pullthelterringtogetherwiththe
extractairlter(item3inFig.6)out
of the ventilation unit.
► Detachtheextractairlterfromthe
lterring.
► Cleanthelterringwithadampcloth
and mild soapy water.
► Disposeoftheusedairlterinthe
non-recyclable waste or as required
byyourcountry’sdisposalregula-
tions.
Fig. 5: Remove cover from the ventilation unit and
clean
1
1
2
Fig. 6: Removeextractairlter,cleanlterring
1
2
3

- 13 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.4 Remove outdoor air lter, clean lter cover
► Turntheltercover(item1inFig.7)
using the hand grip (item 2 in Fig. 7)
anti-clockwiseuntiltheltercoveris
released from the retainers.
► Pulltheltercovertogetherwiththe
outdoorairlteroutoftheventilation
unit.
► Detachtheoutdoorairlterfromthe
ltercover.
► Cleantheltercoverwithadamp
cloth and mild soapy water.
► Disposeoftheusedairlterinthe
non-recyclable waste or as required
byyourcountry’sdisposalregula-
tions.
8.5 Check outdoor air pipe for soiling and clean if necessary
►Check the outdoor air pipe (item 1 in
Fig. 8) for soiling.
►Clean the outdoor air pipe with a
vacuumcleanerorduster,ifneces-
sary (see section 7.1 on page 11).
NOTICE
► Whencleaning,becarefulnotto
damage the optional temperature
sensor (item 2 in Fig. 8).
Fig. 7: Removeoutdoorairlter,cleanltercover
1
2
Fig. 8: Check outdoor air pipe for soiling and clean if
necessary
1
2

- 14 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.6 Clean lter base on extract air side if necessary
► Checkthelterbaseontheextract
air side (item 1 in Fig. 9) for soiling.
► Cleanthelterbaseifnecessary:
►Cover the heat exchanger (item 2
in Fig. 9) with a lint-free cloth.
This will prevent dirt getting inside
the heat exchanger.
► Cleanthelterbasewitha
vacuum cleaner (see section 7.1
on page 11).
NOTICE
► Whencleaning,becarefulnot
to damage the optional humidity
sensor (item 3 in Fig. 9) or optional
CO2 sensor (item 4 in Fig. 9).
8.7 Clean air grilles or duct adapters
8.7.1 Clean air grilles (for surface-mount or ush-mount ventilation units without
ductwork connection)
►Clean the air grilles (item 1 in Fig. 10)
with a damp cloth and mild soapy
water.
You can take out the air grille if
necessary.Todothis,carefullypush
the two retainers (item 2 in Fig. 10)
outwards and pull the air grilles
forward and out.
►Insert the air grilles once more after
cleaning.
Fig. 9: Cleanlterbaseonextractairsideif
necessary
1
2
3
4
Fig. 10: Cleanairgrilles(forsurface-mountorush-
mount without ductwork connection)
1
1
22

- 15 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.7.2 Clean duct adapters (for surface-mount ventilation units with ductwork
connection)
►Clean the duct adapters (item 1 in
Fig. 11) with a damp cloth and mild
soapy water.
You can take out the duct adapters if
necessary.Todothis,carefullypush
the two retainers (item 2 in Fig. 11)
outwards and pull the duct adapters
forward.
►Insert the duct adapters once more
after cleaning.
8.7.3 Clean duct adapters (for ush-
mount ventilation units with
ductwork connection)
►Clean the extract air and supply air
openings (item 1 in Fig. 12) on the
duct adapter with a damp cloth and
mild soapy water.
8.7.4 Clean duct adapters (for U2
integrated into wall ventilation
units)
►Clean the duct adapters (item 1 in
Fig. 13) with a damp cloth and mild
soapy water.
You can take out the duct adapters if
necessary.Todothis,carefullypush
the two retainers (item 2 in Fig. 13)
outwards and pull the duct adapters
forward.
►Insert the duct adapters once more
after cleaning.
Fig. 11: Clean duct adapters (for surface-mount with
ductwork connection)
11
22
Fig. 12: Cleanductadapters(forush-mountwith
ductwork connection)
1
1
Fig. 13: Clean duct adapters (for U2integrated into wall
installation only)
1
1
22

- 16 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.8 Clean supply air ducts on intermediate plate
►Clean the supply air ducts (item 1 in
Fig. 14) on the intermediate plate with
a damp cloth and mild soapy water.
8.9 Check heat exchanger for soiling
►Visually inspect the heat exchanger
(item 1 in Fig. 15) for soiling.
►Use a soft brush attachment on the
vacuum cleaner to clean the heat
exchanger.
NOTICE
Ifsignicantsoilingoftheheatex-
changerisidentiedduringtheannual
visualinspection,theventilationunit
must be opened and cleaned by a
specialist (see section “9 Maintenance
schedule B – carry out every 5 years
(specialists only)” on page 21). Con-
tact Meltem or an authorised specialist
company if this is the case.
DANGER
Potentially fatal voltages
►Do NOT remove the upper (item 2
in Fig. 15) or lower (item 3 in
Fig. 15) electronics compartment
cover.
Fig. 14: Clean supply air ducts on intermediate plate
1
1
Fig. 15: Check heat exchanger for soiling
1
1
2
3

- 17 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.10 Insert new extract air lter
►Carefully guide the new extract air
lter(item1inFig.16)intotheventi-
lation unit.
► Makesurethattheairlterslidesinto
the 3 retaining tabs (item 2 in Fig. 16)
on the back wall of the ventilation
unit.
► Placethelterring(item3inFig.16)
ontheextractairlter.Makesurethat
thelterringliesatontheinterme-
diate plate (item 4 in Fig. 16).
► Turnthelterringclockwiseuntil
thearrowonthelterring(item5in
Fig. 16) lines up with the arrow for the
locking position (item 6 in Fig. 16).
Makesurethatthe4tabs(item7inFig.16)onthelterringengageintheretainers
(item 8 in Fig. 16) on the intermediate plate.
► Checkthepositionofthelterring.Thehandgripmustbeverticalandthearrow
onthelterringmustlineupwiththearrowforthelockingposition(seeFig.6on
page 12).
NOTICE
— Theventilationunitwillnotworkaswellifthelterringisnotinsertedcorrectly.
— OnlyM-WRG-IIFS,partno.750000,maybeusedastheextractairlter.Thepart
no.andairlterclassareimprintedontheyellowendplateoftheairlter(item9in
Fig. 16).
Fig. 16: Insertnewextractairlter
1
2
3
4
5
6
7
8
9

- 18 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.11 Insert new outdoor air lter
►Carefully guide the new outdoor air
lter(item1inFig.17)intotheventi-
lation unit.
► Makesurethattheairlterslidesinto
the 3 retaining tabs (item 2 in Fig. 17)
on the back wall of the ventilation
unit.
► Placetheltercover(item3in
Fig.17)ontheoutdoorairlter.Make
surethattheltercoverliesaton
the intermediate plate (item 4 in
Fig. 17).
► Turntheltercoverclockwiseuntil
thearrowontheltercover(item5in
Fig. 17) lines up with the arrow for the
locking position (item 6 in Fig. 17). Make sure that the 3 tabs (item 7 in Fig. 17) on the
ltercoverengageintheretainers(item8inFig.17)ontheintermediateplate.
► Checkthepositionoftheltercover.Thehandgripmustbeverticalandthearrow
ontheltercovermustlineupwiththearrowforthelockingposition(seeFig.7on
page 13).
NOTICE
— Theventilationunitwillnotworkaswelliftheltercoverisnotinsertedcorrectly.
— OnlyM-WRG-IIFA,partno.750010,andM-WRG-IIFK(activatedcharcoallter),
partno.750020,maybeusedastheoutdoorairlter.Thepartno.andairlter
classareimprintedontheturquoiseendplateoftheairlter(item9inFig.17).
Fig. 17: Insertnewoutdoorairlter
1
2
3
4
5
6
7
8
9

- 19 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.12 Switch on ventilation unit and check functions
►Switch the ventilation unit on at the
mains switch (item 1 in Fig. 18).
► Checkthattheairapsintegrated
into the ventilation unit are working
correctly. You must clearly hear the
airapsopenandclosewhenthe
ventilationunitisswitchedon/o󰀨.
►Check the functions of the extract air
and supply air fans. There must be a
perceptibleairowattheextractair
lter(item2inFig.18)andsupplyair
opening (item 3 in Fig. 18).
8.13 Attach unit cover to ventilation unit
►Hold the cover (item 1 in Fig. 19) of
the ventilation unit with both hands
and tilt the top edge of the cover
towards the ventilation unit.
►Insert the tabs (item 2 in Fig. 19)
of the unit cover into the retainers
(item 3 in Fig. 19) on the top of the
ventilation unit.
►Lightly press the bottom edge of the
cover against the ventilation unit until
you hear the cover snap in place.
Fig. 18: Function check
1
2
3
Fig. 19: Attach unit cover to ventilation unit
1
2
22
2
333
3

- 20 -
Maintenance instructions
M-WRG-II P... / M-WRG-II E ventilation units
Meltem Wärmerückgewinnung GmbH & Co. KG
Am Hartholz 4 · D-82239 Alling
[email protected] · www.meltem.com
VENTILATION THE RIGHT WAY
VENTILATION & HEAT RECOVERY
8.14 Reset lter change indicator
Aftereveryairlterchange,thelterchangeindicatormustberesetinordertorestart
monitoringoftheperiodsincethelastairlterchange.Theprocedureisasfollows:
►Press button 1 (item 1 in Fig. 3 on page 7) for roughly 5 seconds.
Theventilationunitwillbeepthreetimesasconrmation.Monitoringoftheperiod
sincethelastairlterchangeisnowrestarted.
8.15 Enter completed maintenance in maintenance schedule A
►Enter the date on which you carried out the maintenance in maintenance schedule A
and tick the activities you carried out (see section 6.2 on page 10).