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Operating instructions

M-WRG-S/Z-S, M-WRG-S/Z-24,

M-WRG-S/Z-EIB, M-WRG-S/Z-KNX (-F, -FC) ventilation units

- 24 -

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

13.2 Standby mode

The ventilation units can be set to Standby mode (see sections 9.1 on page 18, 10.1 on

page 19, 1 1.1 on page 20 and 12.2 on page 23).
This triggers the following actions:

—

The current ventilation mode is ended.

—

The ventilation unit continues to be supplied with power.

—

The air flaps are closed.

NOTE

—

It is not a good idea to leave the ventilation unit in Standby mode for long periods (see

„Rules for correct usage“ on page 14).

—

On the M-WRG-S/Z-T-KNX (-F, -FC) ventilation unit, Standby mode is disabled at the

factory in association with the “Mains switch without function” option,

type: M-WRG-O/NOF.

13.3 Frost protection function

The ventilation unit is equipped with a frost protection function. In low outdoor temperatures, the

ventilation unit automatically switches to frost protection mode.

►

Do not switch the ventilation unit off in the winter. Note section „6 Rules for correct usage“

on page 14.

How it works (extract from the national technical approval Z-51.3-138):

To prevent the heat exchanger from icing up, there is a temperature sensor fitted on the exhaust

air side for constantly monitoring the temperature. If the exhaust air temperature drops below 2 °C,

the motor controller gradually changes the supply air and/or extract air volume flow according to

the fan level so that the proportion of extract air is increased. This causes the temperature to rise

on the exhaust air side. When an exhaust air temperature of 4 °C is maintained for a period of

3 minutes, the unit switches back to the previous operating state. If a temperature of 2 °C is not

achieved on the exhaust air side, despite increasing the proportion of extract air, e.g. because the

room has cooled down, the extract air and supply air fans are switched off. As soon as a value of

4 °C is identified at the exhaust air temperature sensor, Ventilation mode is resumed at the fan

level that was set before it was switched off.

Содержание M-WRG-S/Z-24

Страница 1: ... Alling info meltem com www meltem com VENTILATION THE RIGHT WAY VENTILATION HEAT RECOVERY OPERATING INSTRUCTIONS HOME VENTILATION WITH HEAT RECOVERY Ventilation units M WRG S Z S M WRG S Z 24 M WRG S Z EIB M WRG S Z KNX F FC Part no 5302 27 01 Week 41 2017 EN ...

Страница 2: ...1 10 Revision index 8 1 11 Explanation of the symbols used 8 2 Safety instructions 9 2 1 Hazard classification 9 2 2 Notes on using the ventilation units safely 9 2 3 Notes on using the ventilation units 10 2 4 Intended use 10 3 Warranty and liability 11 3 1 Warranty 11 3 2 Liability 11 4 Dimensions 11 5 Structure and function 12 5 1 Overview of the modules 12 5 1 1 Ventilation unit cover attached...

Страница 3: ...ventilation units 21 12 1 Operation with control via KNX bus 21 12 1 1 Reduced ventilation people absent program 21 12 1 2 Normal ventilation people present program 21 12 1 3 Increased ventilation program 21 12 1 4 Intensive ventilation 15 min program 22 12 1 5 Supply air operation Summer mode program 22 12 1 6 Extract air operation program 22 12 1 7 Humidity control program 22 12 1 8 Mixed gas CO...

Страница 4: ... WRG S Z S M WRG S Z 24 M WRG S Z EIB M WRG S Z KNX F FC ventilation units 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 ...

Страница 5: ...ntilation units M WRG S Z S M WRG S Z 24 M WRG S Z EIB and M WRG S Z KNX F FC see Fig 1 M WRG stands for Meltem heat recovery Home ventilation experience extending back over 35 years has been incorporated into this product from Meltem Wärmerückgewinnung Using windows for ventilation particularly during periods of cold weather is now a thing of the past This ventilation unit brings in outdoor air f...

Страница 6: ...6 1 2 M WRG S Z KNX F 5016 1 2 1 M WRG S Z KNX FC 5016 1 2 2 manufactured by Meltem Wärmerückgewinnung GmbH Co KG Am Hartholz 4 82239 Alling conform to the regulations and standards listed in the EU Declaration of Conformity provided 1 5 National technical approval for Germany A valid national technical approval from the Deutsches Institut für Bautechnik DIBt must be obtained for the ventilation u...

Страница 7: ...P rating IPX1 IPX4 with protective cap on mains switch optional must be installed at the factory 1 7 2 Dimensions and weight Unit dimensions excluding air connectors see also Fig 3 on page 11 409 mm x 388 mm x 196 mm H x W x D Visible unit depth when surface mounted 196 mm Visible unit depth when flush mounted 66 mm Visible unit depth when integrated into wall U2 Outdoor air exhaust air connectors...

Страница 8: ...where the temperature ranges between 0 C and 40 C 1 9 Environmentally friendly disposal The ventilation unit components must not be disposed of in the residual waste bin In Germany metal and plastic components should be disposed of at the local recy cling centre The national regulations in other EU states should also be followed In Germany electrical components should be disposed of in accordance ...

Страница 9: ...nual 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 underpressure or differential pressure monitor is ne...

Страница 10: ...ions applicable in your country concerning the age from which people 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 it cannot be used and it will not be possible to replace the ...

Страница 11: ...rried 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 insta...

Страница 12: ...hree 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 for covering the unit specific communication interface 5 Supply air hood 6 Extract air filter with filter ring 7 Extract air opening with air flap 5 1 3 Outer wall ...

Страница 13: ... extract air fan item 4 in Fig 8 simultaneously extracts the extract air item 3 in Fig 7 from the interior In the extract air filter item 1 in Fig 8 the extract air is cleaned guided through the heat exchanger and carried outside as exhaust air item 8 in Fig 7 The supply air and extract air fans each transport the same volume of air The pressure in the inte rior remains practically constant Item D...

Страница 14: ...ate routes for the extract air and outdoor air prevent them mixing The heated outdoor air is routed into the interior as supply air item 5 in Fig 9 Item Designation 1 Cross flow plate heat exchanger 2 Extract air 3 Exhaust air 4 Outdoor air 5 Supply air 6 Rules for correct usage 6 1 General Run the ventilation unit in continuous operation The constant ventilation creates a good and healthy atmosph...

Страница 15: ...witch 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 temperatures below 5 C Otherwise the ventilation unit will constan...

Страница 16: ...ch for 3 power levels Power level I 15 m3 h Power level II 30 m3 h Power level III 60 m3 h Intensive ventilation level Switching sequence I II I 100 m3 h 15 min 8 Starting up 8 1 Check ventilation unit before switching on for first time Check the ventilation unit for damage Check that the openings for extract air and supply air are unobstructed 8 2 Switch on the ventilation unit Switch the ventila...

Страница 17: ... 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 11 Both air flaps open when you switch on see item 1 in Fig 12 NOTE If the air flaps do not open fully after switching on for the first time or after a longer stoppage follow the steps below Switch the ventilation unit off Wait at least 15 s Switch the v...

Страница 18: ... 1 Three step rotary switch with zero position The following operating modes can be selected on the three step rotary switch with zero position Switch position on the three step rotary switch with zero position Air flow 0 0 m3 h Standby mode see section 13 2 on page 24 1 15 m3 h 2 30 m3 h 3 60 m3 h NOTE You can exit Standby mode see section 13 2 on page 24 as follows Use the stepping switch on the...

Страница 19: ...it mode was selected via the controller 10 1 Operation with control via building control system The ventilation unit was connected to the building control system and configured by the electrician The following operating modes can be selected with the controller Operating mode Operation with stepping switch on ventilation unit Standby mode see section 13 2 on page 24 Ventilation level 01 Ventilatio...

Страница 20: ...was selected via the controller 11 1 Operation with control via EIB bus The ventilation unit was connected to the building control system and configured by the electrician The following operating modes can be selected with the controller via the EIB bus Operating mode Operation with stepping switch on ventilation unit Standby mode see section 13 2 on page 24 Ventilation level 01 Ventilation level ...

Страница 21: ...tem and configured by the electrician The following ventilation programs can be activated via the KNX bus depending on the unit type 12 1 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 fo...

Страница 22: ... 12 1 6 Extract air operation program The ventilation unit runs in extract air operation with limited heat recovery This operating mode can be selected to route used air to the outside supply air 15 m3 h extract air 50 m3 h If there are two ventilation units present cross venti lation can be achieved in the building by setting one ventilation unit to supply air operation and the other to extract a...

Страница 23: ...ted during the calibration phase by solvents for example When you switch on again it will take roughly 15 minutes for the sensor to recalibrate 12 2 Set ventilation unit to Standby mode Hold down the button for the Reduced ventilation program on the pushbutton sensor see section 12 1 1 on page 21 for at least 3 seconds to switch from Ventilation mode to Standby mode 13 General notes on operation 1...

Страница 24: ...ratures the ventilation unit automatically switches to frost protection mode Do not switch the ventilation unit off in the winter Note section 6 Rules for correct usage on page 14 How it works extract from the national technical approval Z 51 3 138 To prevent the heat exchanger from icing up there is a temperature sensor fitted on the exhaust air side for constantly monitoring the temperature If t...

Страница 25: ...t no Designation Filter type Filter class Application 5571 M WRG FS Standard filter for supply air and extract air G4 Normal use coarse particles such as dust and pollen 5572 M WRG FA Allergy filter for supply air only F7 Suitable for people with pollen and fine dust allergies filters out fine dust and bacteria in addition to coarse dust particles 5573 M WRG FK Activated charcoal filter for supply...

Страница 26: ...in Fig 14 lines up with the arrow at the removal position item 4 in Fig 14 Pull the filter ring together with the extract air filter out of the ventilation unit Turn the filter cover item 6 in Fig 14 using the hand grip item 7 in Fig 14 anti clockwise until the arrow item 8 in Fig 14 on the filter cover lines up with the arrow at the removal position item 9 in Fig 14 Pull the filter cover together...

Страница 27: ...n Fig 14 on page 26 lines up with the arrow for the locking position item 5 in Fig 14 on page 26 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 14 on page 26 NO...

Страница 28: ...hin three seconds while the ventilation unit is beeping again select the ventilation levels I II III II I one after the other on the stepping switch item 1 in Fig 17 The ventilation unit will beep three times as confirmation Monitoring of the filter is restarted 15 Cleaning WARNING Switch off the power to the ventilation unit before cleaning When cleaning make sure that no moisture penetrates into...

Страница 29: ...qualified electrician Faulty switch motor or controller 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 b...

Страница 30: ...M WRG S Z 24 M WRG S Z EIB M WRG S Z KNX F FC ventilation units 30 Meltem Wärmerückgewinnung GmbH Co KG Am Hartholz 4 D 82239 Alling info meltem com www meltem com VENTILATION THE RIGHT WAY VENTILATION HEAT RECOVERY Space for your notes ...

Страница 31: ...M WRG S Z 24 M WRG S Z EIB M WRG S Z KNX F FC ventilation units 31 Meltem Wärmerückgewinnung GmbH Co KG Am Hartholz 4 D 82239 Alling info meltem com www meltem com VENTILATION THE RIGHT WAY VENTILATION HEAT RECOVERY Space for your notes ...

Страница 32: ...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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