Meltem M-WRG-S-T Operating Instructions Manual Download Page 27

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Operating instructions

M-WRG-S/Z-T(-F,-FC) ventilation unit

- 27 -

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

13 Troubleshooting

Error

Cause

Remedy

Ventilation unit is not running

Ventilation unit is in safe mode

after an EMC fault

Switch the ventilation unit off,

wait 15 seconds, then switch

Installation error

Have the wiring checked by a

qualified electrician

Faulty switch, motor or control-

ler

Check by a qualified electrician

Air flaps do not open after

switching on

After a long stoppage or when

starting up for the first time, the

servomotor is not powered by

the electronic circuit.

Switch the ventilation unit off

and on again

Air flap range of motion is

blocked by foreign bodies

(plaster, polystyrene, etc.)

Carefully remove the foreign

bodies, remove the cover if

necessary (see „11.3.1 Re-

move cover from ventilation

unit“ on page 24)

Ventilation unit starts to beep

at intervals

Air filter is dirty or one-year

interval for filter changes is

exceeded

Change air filters (see „11.3

Changing the air filters“ on

page 24)

The ventilation unit frequently

activates the frost protection

function
“Reduced ventilation” program

LED flashes on the InControl

pushbutton sensor (see sec-

tion 10.1 on page 21)

Fault (e.g. faulty sensor or

motor)

Have the ventilation unit

repaired by Meltem or by an

authorised specialist company

“Normal ventilation” program

LED flashes on the InControl

pushbutton sensor (see sec-

tion 10.2 on page 21)

Air filter is dirty or one-year

interval for filter changes is

exceeded

Change air filters (see „11.3

Changing the air filters“ on

page 24)

“Humidity control” program

LED flashes on the InControl

pushbutton sensor (see sec-

tion 10.7 on page 22)

Humidity of the supply air is

greater than that of the extract

air, dehumidification is not

possible

No intervention required;

ventilation operation is limited

to the lowest ventilation level;

as soon as the humidity of the

supply air drops below the

level of the extract air, dehu-

midification is resumed and the

flashing stops

Summary of Contents for M-WRG-S-T

Page 1: ...D 82239 Alling info meltem com www meltem com VENTILATION THE RIGHT WAY VENTILATION HEAT RECOVERY OPERATING INSTRUCTIONS HOME VENTILATION WITH HEAT RECOVERY Ventilation unit M WRG S Z T M WRG S Z T F M WRG S Z T FC Part no 5302 22 01 Week 14 2018 EN CO ...

Page 2: ... used 9 2 Safety instructions 10 2 1 Hazard classification 10 2 2 Notes on using the ventilation units safely 10 2 3 Notes on using the ventilation units 11 2 4 Intended use 11 3 Warranty and liability 12 3 1 Warranty 12 3 2 Liability 12 4 Dimensions 12 5 Structure and function 13 5 1 Overview of the modules 13 5 1 1 Ventilation unit cover attached 13 5 1 2 Ventilation unit cover removed 13 5 1 3 ...

Page 3: ...utton sensor 20 9 2 Set ventilation unit to Standby mode 20 9 3 Frost protection function 20 10 Ventilation programs 21 10 1 Reduced ventilation people absent program 21 10 2 Normal ventilation people present program 21 10 3 Increased ventilation program 21 10 4 Intensive ventilation 15 min program 21 10 5 Supply air operation Summer mode program 22 10 6 Extract air operation program 22 10 7 Humid...

Page 4: ...rating instructions M WRG S Z T F FC ventilation unit 4 Meltem Wärmerückgewinnung GmbH Co KG Am Hartholz 4 D 82239 Alling info meltem com www meltem com VENTILATION THE RIGHT WAY VENTILATION HEAT RECOVERY ...

Page 5: ... 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 section 2 Safety instructions on page 10 carefully 1 2 Description These instructions describe how to set up and operate the decentralised ventilation units M WRG S Z T F FC see Fig 1 M W...

Page 6: ...ts of the same type can be controlled with one InControl pushbut ton sensor The ventilation unit M WRG S Z T F also has a humidity control program In addition to the humidity control the M WRG S Z T FC also has an integrat ed mixed gas CO2 control program Mixed gases are volatile organic compounds VOCs and are the second important measurement after the CO2 content for assessing the air quality An ...

Page 7: ... national regulations applicable in your country should be followed 1 6 Nameplate You will find the nameplate on the intermediate plate on the inside of the housing see item 2 in Fig 3 on page 7 1 7 Technical data 1 7 1 Electrical connection Operating voltage 85 to 265 V AC Mains frequency 50 to 60 Hz Power consumption 3 8 to 37 W Power consumption in relation to the air volume flow 0 17 W m3 h at...

Page 8: ...er Filter change indicator according to the level of soiling of the filter or at least one year since the last filter change Audible and visual Normal ventilation pro gram LED flashes on the InControl pushbut ton sensor see section 10 2 on page 21 Condensate drainage Via exhaust air pipe no condensate trap required Fully automatic cover flap control when switching On Off in Standby mode and if the...

Page 9: ...with the Electrical and Electronic Equipment Act ElektroG In other EU states the na tional implementation of the Waste Electrical and Electronic Equipment Directive 2012 19 EU WEEE should be followed In Germany rechargeable batteries and accumulators should be disposed of in ac cordance with the Batteries Act BattG The national implementation of the Battery Directive 2006 66 EC should be followed ...

Page 10: ...ortant 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 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 safe...

Page 11: ...out by children unless they are supervised Follow the regulations applicable in your country concerning the age from which peo ple may be permitted to operate 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...

Page 12: ... carried out by Meltem or by an authorised specialist company The ventilation unit was operated without air filters The warranty does not cover wearing parts such as air filters 3 2 Liability The manufacturer s liability shall not apply in the following cases The installation kit was not installed as described in the installation manual The ventilation unit was not installed as described in the in...

Page 13: ...h for three power levels intensive ventilation level 4 Mains switch 5 1 2 Ventilation unit cover removed Item Designation 1 Supply air opening with air flap 2 Supply air filter with filter cover 3 Intermediate plate 4 Network connection cover 5 Supply air hood 6 Extract air filter with filter ring 7 Extract air opening with air flap 5 1 3 Outer wall terminal Item Designation 1 Opening for drawing ...

Page 14: ...4 in Fig 9 extracts the extract air item 3 in Fig 8 from the interior In the extract air filter item 1 in Fig 9 the extract air is cleaned guided through the cross flow plate heat exchanger and carried outside as exhaust air item 8 in Fig 8 The supply air and extract air fans each transport the same volume of air The pressure in the inte rior remains practically constant Item Designation 1 M WRG v...

Page 15: ... outdoor air and extract air from mixing The heated outdoor air is routed into the interior as supply air item 4 in Fig 10 Item Designation 1 Cross flow plate heat exchanger 2 Outdoor air 3 Exhaust air 4 Supply air 5 Extract air 6 Rules for correct usage 6 1 General Run the ventilation unit in continuous operation The constant ventilation creates a good and healthy atmosphere in the room Adapt the...

Page 16: ...ere is high atmospheric humidity in the interior if you need to switch off the ventilation unit This will remove any condensate that is present in the ventilation unit Maintain the temperature in bedrooms at 16 C to 18 C or more This temperature is also more healthy for the people in the bedrooms Do not run the ventilation unit at room temperatures below 15 C and particularly not at low external t...

Page 17: ...pping switch item 2 in Fig 11 is also signalled by the associat ed LED on the InControl pushbutton sensor 7 2 InControl pushbutton sensor The InControl pushbutton sensor allows you to select one of six different ventilation programs The available ventilation programs depend on the type of ventilation unit Every button has an LED that indicates the currently selected ventilation program 7 2 1 InCon...

Page 18: ...ation unit Reduced ventilation people absent Standby mode Increased ventilation Humidity control Normal ventilation people present Intensive ventilation 15 min Supply air operation Summer mode Fig 13 InControl pushbutton sensor for the type M WRG S Z T F ventilation unit Reduced ventilation people absent Standby mode Increased ventilation Humidity control Normal ventilation people present Intensiv...

Page 19: ...prox 10 s the air flaps on the extract air and supply air openings open 8 3 Check position of air flaps NOTE Check the position of the air flaps see Fig 15 and Fig 16 on the extract air and supply air openings Both air flaps will be closed if the ventilation unit is switched off or without power see item 1 in Fig 15 Both air flaps open when you switch on see item 1 in Fig 16 NOTE If the air flaps ...

Page 20: ...nsor see section 10 1 on page 21 for at least 3 seconds to switch from Ventilation mode to Standby mode This triggers the following actions The current ventilation mode is ended The ventilation unit continues to be supplied with power Close the air flaps Press any button on the InControl pushbutton sensor or press the stepping switch for three power levels see section 7 1 on page 17 to switch from...

Page 21: ... 1 Reduced ventilation people absent program The ventilation unit runs at the lowest ventilation level 15 m3 h This operating mode can be selected when the occupier is absent e g on holiday to ensure a minimum level of air renewal This includes the ventilation for moisture protection NOTE The associated LED flashes in the event of a fault e g faulty sensor or motor 10 2 Normal ventilation people p...

Page 22: ...upply air operation will constantly activate the frost protec tion function or switch off altogether 10 7 Humidity control program The ventilation unit runs constantly at the lowest ventilation level 15 m3 h If the relative room air humidity exceeds 60 RH the ventilation level is increased continuously up to max 60 m3 h until the room air humidity drops back below 60 RH NOTE To ensure dehumidifica...

Page 23: ...ime since the last filter change If the air filters are dirty or were last changed more than one year ago the pend ing filter change is signalled both audibly and visually see section 10 2 on page 21 As the time for the filter change approaches the intervals between the audible warnings shorten over a period of two to three weeks The filters must be changed when the warning signal occurs every hou...

Page 24: ...the same time push your index fingers into the gap between the cover and hous ing and lift the cover up from the housing 11 3 2 Remove air filters Turn the filter ring item 1 in Fig 18 using the hand grip item 2 in Fig 18 anti clockwise until the arrow on the filter ring item 3 in Fig 18 lines up with the arrow at the removal position item 4 in Fig 18 Pull the filter ring together with the extract...

Page 25: ...ines up with the arrow for the locking position item 5 in Fig 18 on page 24 Insert the new supply air filter Repeat the steps described for the extract air filter Check the position of the filter ring and filter cover The hand grips must be vertical and the arrows on the filter ring and filter cover must line up with the arrows for the locking position see Fig 18 on page 24 NOTE The ventilation un...

Page 26: ...tion unit is beeping again select the ventilation levels I II III II I one after the other on the stepping switch see item 1 in Fig 21 The ventilation unit will beep three times as confirmation Monitoring of the period since the last filter change is now restarted 12 Cleaning WARNING Switch off the power to the ventilation unit before cleaning When cleaning make sure that no moisture penetrates in...

Page 27: ...Ventilation unit starts to beep at intervals Air filter is dirty or one year interval for filter changes is exceeded Change air filters see 11 3 Changing the air filters on page 24 The ventilation unit frequently activates the frost protection function Reduced ventilation program LED flashes on the InControl pushbutton sensor see sec tion 10 1 on page 21 Fault e g faulty sensor or motor Have the v...

Page 28: ...s 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 8141 404179 9 Internet...

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