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Installation manual

M-WRG-M/MB-FK1 / FK2

Meltem Wärmerückgewinnung GmbH & Co. KG

Am Hartholz 4 · D-82239 Alling

[email protected] · www.meltem.com

VENTILATION THE RIGHT WAY

V E N T I L AT I O N & H E AT R E C O V E R Y

supply and extract air openings are roughly 30 cm (top edge of the unit) below the ceiling

(exception: extract 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 the flat

ductwork.

— The distance between the side edge of the ventilation unit and adjacent surfaces

should be at least 5 cm. The ventilation unit will be easier to operate if this mini-

mum distance is maintained. It also allows the filter to be replaced without obstruc

tion.

►

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.

3.3

Unrestricted access to the ventilation unit

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 used and it will not be possible

to replace the filter. You should therefore maintain a clearance of at least 150 mm in front of

the ventilation unit cover.

►

Make sure that the supply and extract air openings are not blocked, obstructed or covered

when the room is subsequently decorated and furnished.

3.4

Additional planning notes for this installation kit

WARNING

Observe the relevant fire safety and soundproofing regulations

►

Observe the regulations concerning the fire behaviour of building materials and components

as defined in DIN 4102.

►

Observe the regulations concerning soundproofing in buildings as defined in DIN 4109, par

ticularly the requirements for insulation against airborne and impact sound.

►

Observe the building regulations applicable in your country.

NOTE

►

Observe the following recommendations when using flat ductwork. This will avoid uninten

tional pressure losses in the flat ductwork.

—

The total length of a flat duct should not exceed 6 m.

—

Minimise the number of bends in the flat ductwork.

Summary of Contents for M-WRG-M/MB-FK1

Page 1: ...COVERY INSTALLATION MANUAL HOME VENTILATION WITH HEAT RECOVERY Flush mount installation kit M WRG M MB FK1 M WRG M MB FK2 Solid construction with one connection for flat ductwork Solid construction with two connections for flat ductwork for flush mounting ventilation units from the M WRG S and M WRG K series Part no 5300 03 01 Week 35 2015 EN ...

Page 2: ...his installation kit 8 3 5 Retrospectively flush mounting the installation kit 9 4 Warranty and liability 9 4 1 Warranty 9 4 2 Liability 9 5 Items supplied 10 5 1 Installation kit M WRG M MB FK1 part no 5051 11 parts list 10 5 2 Installation kit M WRG M MB FK2 part no 5051 12 parts list 10 5 3 Options 10 5 4 Installation materials required 11 6 Dimensions of the installation kits 11 7 Tools and eq...

Page 3: ... 12 Riveting the 90 bracket to fixing plate 21 9 13 Plastering the wall box and flat ductwork on the inside 21 9 14 Aligning the wall box on the outside before plastering 22 9 15 Plastering the wall box on the outside 23 9 16 Preparing the wall box for connecting the ventilation pipes 24 9 17 Cutting ventilation pipes to length 24 9 18 Inserting and fixing the ventilation pipes 25 9 19 Sealing ven...

Page 4: ...stallation is complete give these instructions to the home owner caretaker or prop erty 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 sections 2 Safety instructions on page 6 and 3 Planning notes on page 7 carefully 1 2 Description This manual ...

Page 5: ...d directives Knowledge and observance of this document and all the safety instructions 1 4 Nameplate The nameplate is attached in two places beneath the red signal cover on the plaster cover see item 1 in Fig 3 beside the hole for the mains cable item 1 in Fig 4 Fig 3 Nameplate on the plaster cover Fig 4 Nameplate beside the hole for the mains cable 1 5 Storage Store the installation kit in its or...

Page 6: ...rmation 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 Fire protection Follow the requirements of the national technical approval from the Deutsches Institut für Bautechnik DIBt approval number Z 51 3 138 when planning and installing the unit Operation with fireplaces An additional safety device u...

Page 7: ...liance with all the notes in the installation manual 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 com ponents will work perfectly and correctly 3 Planning notes 3 1 Requirements for the installation wall The installation kit can be installed in solid walls that are at least 17 5...

Page 8: ...d access to the ventilation unit 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 used and it will not be possible to replace the filter You should therefore maintain a clearance of at least 150 mm in front of the v...

Page 9: ...described in the installation manual The ventilation unit was not installed as described in the installation manual Genuine Meltem parts were not replaced with genuine parts Unapproved changes were made to the installation kit or ventilation unit Repairs were carried out incorrectly The ventilation unit was operated without a filter The warranty does not cover wearing parts such as filters 4 2 Lia...

Page 10: ...r for 90 bracket vertical 1x 6 90 bracket vertical 1x 7 Blind rivet 2x 8 Assembly fixing plate 1x 9 Spax screw 4 5 x 35 3x 10 Protective sleeve 2x 5 2 Installation kit M WRG M MB FK2 part no 5051 12 parts list The installation kit for flush mounting solid construction with two connections for flat ductwork 110 x 53 mm contains Item Description Qty Parts 1 Wall box 1x 2 Cardboard insert 1x 3 Plaste...

Page 11: ...on These must be ordered separately Item Description Part no Outdoor air and exhaust air pipe 2 x 0 5 m DN 100 M WRG LR 50 5574 6 Dimensions of the installation kits 456 260 A B 62 114 104 114 477 108 62 95 C 15 365 192 5 172 5 15 172 5 192 5 228 228 59 15 365 Fig 5 Dimensions of the installation kits with filler piece in millimetres A Hole for mains cable B Hole for control cable only needed for ...

Page 12: ... from Würth part no 07156780 If necessary wedges for fixing the filler piece 4x alternatively use inflatable air cushions 2x e g Amo Bag from Würth part no 07156780 NOTE If the installation kit is to be retrospectively installed in a solid wall you will need additional tools to break through the wall 8 General installation instructions NOTE The unit must be installed in accordance with the general...

Page 13: ... extract air and supply air 9 2 Breaking through the wall The wall breakthrough can either be included when planning a new build or subsequently made in the solid wall 9 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 ...

Page 14: ...g 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 breakth...

Page 15: ... Fig 10 for both the extract air duct item 1 in Fig 10 and the supply air duct item 2 in Fig 10 Check that the installation kit fits 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 flush against the solid wall and extend 15 mm beyond the plastering trim 9 4 Chasing out channels for fu...

Page 16: ...he connecting cables DANGER Potentially fatal voltages The electrical installation work must only be carried out by a qualified electrician The VDE regulations or any special safety regulations applicable in your country apply to the electrical installation work Disconnect the mains cable for connecting to the ventilation unit on all poles from the mains supply Make sure that the mains supply cann...

Page 17: ... NYM J 3 x 1 5 mm2 J Y St Y 10 x 2 x 0 6 mm2 or J Y St Y 10 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 J 3 x 1 5 mm2 J Y St Y 2 x 2 x 0 8 mm2 or EIB Y St Y 2 x 2 x 0 8 mm2 5016 2 1 M WRG S Z 24 NYM J 3 x 1 5 mm2 J Y St Y 4 x 2 x 0 6 mm2 or J Y St Y 4 x 2 x 0 8 mm2 5013 5014 1 5014 2 M WRG S 485 M WRG S 485 TF M WRG S 485 T...

Page 18: ...is supplied If necessary use a screwdriver to punch through the sealed hole item B in Fig 14 Thread the control cable if required item 4 in Fig 14 through the hole B item B in Fig 14 Push the wall box item 5 in Fig 14 fully into the wall breakthrough 9 8 Inserting the cardboard insert and plaster cover Place the cardboard insert item 1 in Fig 15 in the wall box item 6 in Fig 15 Insert the plaster ...

Page 19: ...pendicu lar as this is the only way to ensure that any condensation will be carried outside by the 2 pipe fall Fix the filler piece if needed to the external wall with wedges or air cushions NOTE The plastering trim is 15 mm deep see Fig 17 If the depth of plaster should be more than 15 mm position the wall box so that it protrudes sufficiently out of the solid wall If you do not do this there is ...

Page 20: ... Once the foam has hardened remove any wedges that extend beyond the solid wall 9 11 Inserting flat ductwork into channels Join individual elements of the flat ductwork to create partial sections and seal every join with a layer of sealing tape 30 mm wide item 1 in Fig 19 Insert the first section of the flat ductwork into the 90 bracket on the wall box and seal the join with sealing tape item 2 in...

Page 21: ...work on the inside NOTE Prepare the substrate suitably before plas tering Make sure that the signal cover item 1 in Fig 21 is seated in the plaster cover item 2 in Fig 21 Make sure that the protective cover item 3 in Fig 21 is seated in the 90 brackets Cut off any excess expanding foam on the wall box and flat ductwork Apply the plaster scrim M WRG PG item 4 in Fig 21 to the wall box and the solid...

Page 22: ... a 2 fall If the unplastered wall is thin 24 cm or less do not cut off the wall box flush with the unplastered wall Allow the wall box to protrude in the vicinity of the external thermal insulation com posite system ETICS as this is the only way to allow the ventilation pipes to pass far enough through the wall box and so be fixed in place When fitting the ETICS make sure that the ventilation pipe...

Page 23: ...ould extend beyond the solid wall so that they will end flush with the subsequent plaster coat The protective sleeves provide the bonding sur face for the external plaster NOTE Prepare the substrate suitably before plas tering Apply the plaster scrim item 2 in Fig 24 and Fig 25 to the outside of the wall box to the masonry and to the facade insulation NOTE Applying plaster scrim will minimise subs...

Page 24: ...the plaster on the inside of the plastering trim item 2 in Fig 26 Carefully remove the plaster cover item 3 in Fig 26 Remove the protective cover over the supply air duct item 4 in Fig 26 and or extract air duct item 5 in Fig 26 Work on the external wall Remove the two protective sleeves item 1 in Fig 27 9 17 Cutting ventilation pipes to length Push the two ventilation pipes item 1 in Fig 28 into ...

Page 25: ... depending on the layer structure Tab 3 Excess length of the ventilation pipes from the external wall 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 NOTE If you do not deburr the ventilation pipes there is a risk of damaging the seals at the ventilation unit and outer wall te...

Page 26: ...h permanently elastic sealant Fill the chamfers of the pipe breakthrough edges all round with permanently elastic sealant on the outside NOTE Only use a solvent free sealant if the sealant is applied to polystyrene 9 20 Attaching the outer wall terminal WARNING Do not run without the outer wall terminal Please note that the ventilation unit must not be used without the outer wall terminal for safe...

Page 27: ...duct adapter NOTE Installation of the ventilation unit item 1 in Fig 32 in the wall box is described in the Ventilation unit installation man ual M WRG S and M WRG K part no 5300 10 01 Installation of the duct adapters item 2 in Fig 32 is described in the Installa tion manual M WRG KA UP part no 5300 30 01 11 Other flat ductwork layout examples Fig 33 Flat ducts straight Fig 34 Flat ducts angled F...

Page 28: ...ere 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 the subsequent edi tions 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 Tel 49 0 8141 404179 0 Fax 49 0 814...

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