M-WRG-II
The M-WRG-II is our quiet powerhouse. The series stands out for its efficiency, noise protection properties and contribution to healthy living. With our multi-room solution, you can cost-effectively ventilate multiple rooms at the same time with just one M-WRG-II unit.
- Up to 94% heat recovery efficiency
- Sound insulation D n,e,w up to 70 dB
- Inherent noise from LpA, 10 m² = 6.5 dB(A)
- Enthalpy heat exchanger with moisture recovery possible
- Constant volume flow rate (suitable for multi-storey buildings)
INTEGRATED INTO WALL – FLUSH-MOUNT – SURFACE-MOUNT
INSTALLATION TYPES
There are several ways to install a comfort ventilation unit. The surface-mount version is ideal for retrospective installation and renovations, while the flush-mount version and the virtually invisible integrated into wall installation (U2) are ideal for new builds and renovations. Ductwork connections can be implemented for all installation methods.
INTEGRATED INTO WALL U²
In this version, the units are completely concealed in the wall; only the elegant cover remains visible. For extraction and supply, ductwork is used to draw extract air from neighbouring rooms (e.g. bathroom, WC), which is then freely and flexibly supplied to the room in question (e.g. living room). This method offers a great deal of technical and aesthetic design freedom!
For installation, you need, for example, the following installation kit: M-WRG-II M-U²
We are happy to help you find the right installation kit for your ventilation project!
FLUSH-MOUNT VERSION WITH DUCTWORK CONNECTION
With the flush-mount version, the ventilation unit is largely concealed in the wall. Only the unit cover (approx. 58 mm thick) is visible on the wall. Particularly in combination with with a ductwork connection, this version is a cost-effective alternative to integrated into wall U2 installation. Depending on the project, the low installation depth can be an advantage.
For installation, you need, for example, the following installation kit: M-WRG-II M or M-WRG-II M/MB
We are happy to help you find the right installation kit for your ventilation project!
FLUSH-MOUNT VERSION
With the flush-mount version, the ventilation unit is largely concealed in the wall. Only the unit cover (approx. 60 mm thick) is visible on the wall. Depending on the project, the low installation depth can be an advantage.
For installation, you need, for example, the following installation kit: M-WRG-II M or M-WRG-II M/MB
We are happy to help you find the right installation kit for your ventilation project!
SURFACE-MOUNT VERSION
The surface-mount version is ideal for retrospective installations and renovations. Thanks to the low-effort installation (two 120 mm tap holes and a 230 V connection), the ventilation unit can be retrofitted. These units provide good ventilation with high heat recovery.
This type of installation does not require a wall sleeve. The ventilation unit is installed directly on the wall.
Installation kits are also available for the flush-mount version: M-WRG-II M/AP or M-WRG-II M/AP-KA
Control options
Like our comfort ventilation systems themselves, the control options leave nothing to be desired. Operation at the unit, via cable, bus systems, needs-based control via external wireless sensors or entirely wireless – the choice depends on what you need.
The Meltem app
Convenient operation of M-WRG-II and M-WRG ventilation units. Offers maximum flexibility with respect to all the control options.
4-way wireless pushbutton switch
With LED feedback for wireless operation of the ventilation unit.
The wireless pushbutton switch is ideal for retrospective installation or for barrier-free living.
External wireless sensors
Control unit with 5 ventilation levels/programs including CO₂ sensor for on-demand operation of the ventilation units.
Allows the sensor to be arranged flexibly within the room (230 V connection required) or can be retrofitted for units without sensors.
Wireless remote control
Convenient operation of up to six ventilation units in one room. This solution is useful for new builds and retrospective installation in renovations where time-consuming and expensive cable runs need to be avoided as far as possible.
InControl pushbutton sensor
Convenient buttons and ease of use for up to five M-WRG-II P-T/E-T or M-WRG-S/Z-T units in one room. Fixed values for humidity and CO₂. Hard-wired solution for new builds.
Bus systems
Central operation of decentral ventilation units using a bus system is an especially appealing option for larger new builds (retirement homes, student dorms, hotels, etc.). From a central location, the user can monitor, set, configure, and even perform remote maintenance on the units.
Operation at the unit
The base version of the ventilation unit has 5 ventilation levels/programs that can be set at the control panel on the left side of the unit. The integrated LEDs in the buttons indicate when the filter has to be changed or there is a fault, among other things.
JUST RIGHT FOR YOUR BUILD
Applications
Our M-WRG-II comfort ventilation system is a real allrounder. Single- or multi-room apartments, residential buildings, dorms, hotels, office, and much more. The M-WRG-II is the efficient solution. Thanks to the multi-room solution, even interior bathrooms can be connected and ventilated.
FACTS & FIGURES
System overview and technical data for M-WRG-II
Here is a complete overview of the technical data for the M-WRG-II series.
INDIVIDUALLY ADJUSTABLE
Unit options
When you decide to go with our comfort ventilation units, there are additional unit options to choose from.
The ventilation levels are pre-set to standard values at the factory. Customers can request to change these settings to individualise their unit. This option has to be activated at the factory.
This option deactivates the ventilation unit’s mains switch. The user can only control the unit’s ventilation levels/programs. The customer has to ensure that the ventilation unit(s) can be powered off by some other means (e.g. fuse box in apartment/house). This option can only be activated at the factory.
This option allows a minimum ventilation level according to DIN 18017-3. From 8 AM to 20 PM, the unit ventilates at 40 m3/h, dropping to 20 m3/h between 8 PM and 8 AM. This function is activated at the factory, cannot be switched off by the user and has priority over all other settings. It includes the deactivated mains switch so that the user cannot simply turn off the unit (unit can be switched off by the customer at the fuse box).
Please note:
- This option results in a different button configuration on the control unit: button 1, 2, 3, (4): 20, 40, 60, (80) m3/h.
- This option is only available in combination with M-WRG-II O/VOC-AUL!
This option is used to set fixed minimum ventilation levels for day and night. The function is activated at the factory and cannot be switched off by the user, who can only set higher ventilation levels. A humidity program that runs in the background increases the airflow as required. The option includes the deactivated mains switch so that the user cannot simply turn off the unit (unit can be switched off by the customer at the fuse box).
This option results in a different button configuration on the control unit: button 1, 2, 3, (4): 20, 40, 60, (80) m3/h.
It is possible to combine this option with the wireless humidity or CO2 sensor.
Please note:
- This option is only available in combination with M-WRG-II units with humidity and/or CO2 control (except types -S 485, -TF, -TFC).
- This option has to be activated at the factory.
The ventilation unit is equipped with a VOC sensor for monitoring the outdoor air quality. In combination with the ‘Automatic mode’ ventilation program, the unit temporarily reduces the supply air if the threshold for volatile organic contaminants (compounds from biological decomposition processes, motor traffic exhaust fumes, by-products from industrial and commercial operations) is exceeded (1,500 ppm).
This option is only available for units with a CO2 sensor (M-WRG-II …-FC). It has to be installed at the factory. This option is only available in combination with an M-WRG-II O/MVS unit.
With this option, the unit is equipped with a ‘Unit OFF’ input and a potential-free error message output.
The input can be used to connect a smoke detector or a window contact, for example, to switch off the unit if there is smoke or a window is opened.
The error message output can be used, for example, to report the unit’s operating status to a central location. This option has to be installed at the factory.
CONTACT
Your local contact person
You’re looking for an experienced ventilation partner for your construction project? Or you have general questions about ventilation systems? Our ventilation experts are happy to help!
MORE INDIVIDUAL
Accessories
The right accessories let us tailor your comfort ventilation system with heat recovery to your construction project. Look here for individual designs, high performance filters and much more.
