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x-well central domestic ventilation – healthy thermal comfort for modern new-builds.

x-well® central domestic ventilation

Healthy thermal comfort for every living situation. Contemporary construction or energy efficient renovation and the specifications of the EnEV require a high level of energy efficient insulation. That is why central residential ventilation systems are now standard in passive houses, low-energy houses, and housing renovations. x-well residential ventilation supplies rooms with fresh air around the clock and thus permanently creates hygienic thermal comfort and a pleasant level of humidity, not too high. By filtering dust and pollen, your own four walls also become a place of well-being for allergy sufferers. As no window needs to be opened, street noise stays outside, as do pollen and allergens. We only install external filters of the highest possible filter class ePM1 according to ISO 16860 in all central ventilation units. During air exchange, odours are naturally also removed from the kitchen, bathroom, and WC. Apart from that, x-well residential ventilation systems consume very little energy while working due to the high heat distribution. So in contrast to window airing, no heat is unnecessarily lost.

The design air vents fit in with any interior design furnishings.

 

Awarded with

Best of SHK Award für x-well
x-well Zentrale Wohnraumlüftung
ZentraZentrale Wohnraumlüftung von Kermi

Central residential ventilation supplies the individual rooms with fresh air via a  ventilation unit, usually placed in the plant room, and a distribution system.

Product description Floor space Heat distribution Acoustic power level Energy efficiency class
x-well S series
x-well living space ventilation unit S180 / S180 E up to approx. 125 m2 92.1 % / 88.6 % 39 dB(A) A+ / A
x-well living space ventilation unit S280 / S280 E up to approx. 175 m2 92.4 % / 84.8 % 43 dB(A) A+ / A
x-well living space ventilation unit S370 / S370 E up to approx. 240 m2 92.5 % / 82.7 % 46 dB(A) A+ / A
x-well living space ventilation unit S460 / S460 E up to approx. 350 m2 88.6 % / 81.5 % 48 dB(A) A / A
x-well F series
x-well F130 living space ventilation unit up to approx. 90 m2 88.0 % 37.0 dB(A) A
x-well living space ventilation unit F170 / F170 E up to approx. 120 m2 92.1 % / 81.9 % 45 dB(A) A+ / A

x-well® S series

Compact ventilation units for comfortable and controlled residential ventilation in new-builds.

The x-well S-series with heat recovery offers a wide range or compact ventilation units for comfortable and controlled residential ventilation. The volume flows can be controlled as required via the relative humidity of the extract air and they have a humidity sensor integrated in the extract air (depending on the unit configuration). With this sensor, it is possible to control the volume flows according to demand through the relative humidity. The countercurrent heat exchanger made of polystyrene used for heat recovery is proving to be particularly efficient. In contrast to that, the integrated summer bypass provides support in the summer to ensure that no warm air gets inside the building. The white powder-coated (RAL 9003) housings made of stainless steel are heat insulated and soundproof. The removable front part provides easy access for service and maintenance work or for replacing filter cartridges.

  • Control element included
  • Simple operation – 5 steps
  • Monitoring of operating data
  • Filter change indicator (time-controlled)
  • Bypass function in the summer
  • Demand-based control via humidity (type dependent)
  • Can be converted from left-hand to right-hand version
  • Preheating coil can be integrated as an option
  • Pressure sensor can be integrated as an option
  • Certification according to the Passivhaus Institut (PHI)
Zentrale Wohnraumlüftung x-well S-Serie

Using a flat ventilation unit as an example, the S280, shows how it is possible to install the unit as well as the main duct system in the suspended ceiling. Here, manifolds/collectors and the ventilation ducts are encased in the bare concrete ceiling.

When retrospectively installing an x-well residential ventilation system, it makes sense to integrate it into the floor construction. Here, the ventilation ducts are laid in the insulation layer. Ideal for renovation situations.

If the controlled residential ventilation is used over several storeys, then the ventilation unit is connected to the manifold/collector via silencers and main duct pipes. There are three different options for integrating the ventilation ducts: in the suspended ceiling, in the bare concrete ceiling, or in the bare concrete ceiling.

x-well® F series

Ideal for retrofitting due to the versatile installation options and its flat design.

The x-well F-series with heat recovery as compact ventilation units offers  comfortable and controlled residential ventilation. Thanks to the versatile installation options and due to their shallow construction depth, they are ideal for renovation and can easily be installed in drywalls and suspended ceilings. The volume flows can be controlled as required via the relative humidity of the extract air and they have a humidity sensor integrated in the extract air . With this sensor, it is possible to control the volume flows according to demand through the relative humidity. The countercurrent heat exchanger made of polystyrene used for heat recovery is proving to be particularly efficient. The white powder-coated (RAL 9003) housing made of sheet steel is heat insulated and soundproof. The removable front part provides easy access for service and maintenance work or for replacing filter cartridges.

  • Control element included (on F170 / F170 E, optional on F130)
  • Simple operation – 5 steps
  • Monitoring of operating data
  • Filter change indicator (time-controlled)
  • Demand-based control via humidity
  • Horizontal ceiling installation
  • Vertical wall installation
  • Passivhaus certificate for x-well F150 and x-well F170

Certified components Passivhaus Institut
x-well F130 central residential ventilation

x-well® F130 / F150

Kermi x-well F130 Einbausituation im modernen Bad

Installation situation x-well F130 / F150 – The low installation depth is suitable for installation in pre-wall installations of modern bathrooms.

x-well® F170 / F170 E

Characteristics

x-well F170 / F170 E ventilation unit (enthalpy heat exchanger for moisture recovery)

Kermi x-well F170 im Rohbau
Kermi x-well F170 in der Küche

Installation situation x-well F170 - The versatile mounting options are perfect for installation in suspended ceilings.

Using a flat ventilation unit as an example, the F170, shows how it is possible to install the unit as well as the main duct system in the suspended ceiling. Here, manifolds/collectors and the ventilation ducts are encased in the bare concrete ceiling.

Integration in a suspended ceiling could be an option when fitting retrospectively, e.g. while renovating, if the ceilings in the rooms are high enough. For example, with manifolds/collectors which can be installed hanging from the ceiling, round or flat ventilation ducts are connected.

Control element

Control element for all central residential ventilation units. The control element is included on all S units and F170 and F170 E. It can also be ordered as an option for x-well F130 and F150. It is operated using a simple menu with easy to understand pictograms and language neutrality in the user menu. It is also possible to mount the control element on a wall as a surface-mounted installation.

Control element for x-well central domestic ventilation

Functions

  • 5-stage controller with display
  • Monitoring of operating data
  • Custom adjustable weekly programs of which
    – 4 factory preset weekly programs
    – 4 freely changeable weekly programs
  • optical filter change indicator (time-controlled)
  • Time and weekday display
  • Various operating modes  can be selected:
    – Manual mode
    – Auto mode according to relative humidity or an additional air quality sensor connected
    – Time program mode
    – Party mode (intensive ventilation = 130 %)
    – Holiday mode (reduced speed = 25 %)
  • Different special functions:
    – Boost mode
    – Integrated summer function
    – Error message

System components

x-well® design air vents

Aesthetically pleasing and functional for optimal air. The x-well design air vents for airing the central residential ventilation are aesthetic solutions for various installation situations: They are suitable for both installation in a suspended ceiling and also in dry construction walls. As flow-optimised source air vents, they contribute to a comfortable ventilation of the rooms. A filter insert is available as an option as well as a throttle to balance the air flows.

SEA301 – add-on air permeability for the ceiling and wall. Suitable for supply air and exhaust air. 10 mm frame width.

SEA301 – add-on air permeability for the ceiling and wall. Suitable for supply air and exhaust air. 10 mm frame width.

SEA302 – add-on air permeability for the ceiling and wall. Suitable for supply air and exhaust air. 30 mm frame width.

SEA302 – add-on air permeability for the ceiling and wall. Suitable for supply air and exhaust air. 30 mm frame width.

SEA303 – integrated air permeability for drywall ceilings and walls. Wall-flush installation. Suitable for supply air and exhaust air.

SEA303 – integrated air permeability for drywall ceilings and walls. Wall-flush installation. Suitable for supply air and exhaust air.

SEA401 – air permeability for the ceiling. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Diameter Ø 230 mm.

SEA401 – air permeability for the ceiling. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Diameter Ø 230 mm.

SEA402 – air permeability for the ceiling and wall. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Diameter Ø 230 mm.

SEA402 – air permeability for the ceiling and wall. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Diameter Ø 230 mm.

SEA403 – air permeability for the ceiling. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Dimension 230 x 230 mm.

SEA403 – air permeability for the ceiling. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Dimension 230 x 230 mm.

SEA404 – air permeability for the ceiling and wall. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Dimension 230 x 230 mm.

SEA404 – air permeability for the ceiling and wall. Including mounting base with flow control. Colour similar to RAL 9016 with texture. Dimension 230 x 230 mm.

x-well® hygienic electrostatic air filter

x‐well hygienic is an electronic air filter. It was developed to improve the air quality of the supply air and to protect the health of the people who are in the building. The electronic air filter is based on the principle of separating particles present in the air by their electrical polarisation and their subsequent fixation on opposing, differently charged metal surfaces that form numerous strong electrical fields. As a result, pollutant particles become electrically charged and are attracted and held in place as if by small magnets. The electronic filter effectively stops particles of category ePM1 (fine dust), soot, pollen, biological substances, and viruses that are on the particles.

Benefits of the x-well hygienic air filter

  • Lowest pressure losses ensure low electrical power consumption and noise emissions for the ventilation unit.
  • Low electrical power consumption and easy cleaning, resulting in very low operating costs.
  • Extremely high separation rate, more than 85 % of particles with a size of 1 μm are filtered out.
x-well hygienic electrostatic air filters

x-well® brine/air geothermal energy exchanger

For temperature control of outside air. Preheating in the winter / cooling in the summer. Unlike the air, the ground has relatively constant temperatures. That way, the brine/air geothermal heat exchanger can preheat the outside air at low outside temperatures in the winter and keeps it frost-free. As a result, optimum operation for the ventilation unit can be assured even at temperatures below the freezing point. In the summer, the ground temperatures are considerably cooler than the outside air. As a consequence, the outside air can be adequately tempered via the brine/air geothermal heat exchanger. Apart from that, the brine/air geothermal heat exchanger is an energy saving alternative to electric preheating coils thanks to the use of regenerative energies.

Kermi x-well brine/air geothermal heat exchanger
How the Kermi x-well brine/air geothermal heat exchanger functions

Characteristics

  • Use of the constant ground temperature for preheating (winter) / cooling (summer)
  • Alternative solution to the electric/water-based preheating coil
  • For air quantities up to 250 m³/h
  • Can be controlled via control elements of the x-well S and F170 ventilation units
  • Already included in the scope of delivery: circulation pump, diaphragm expansion tank, and safety assembly

x-well® SA500-E electric supply air vent

Characteristics

Kermi x-well SA500-E heatable air vent

5 year system warranty

Finally the new Kermi heating system has been installed. Or the Kermi ventilation system. Nothing left to stop you feeling cosy at home. With our 5-year system warranty, we are happy to prove the quality of our products and our service promise to you.

Just three steps to a 5 year system warranty:

1. Have the Kermi system installed by a specialist company
2. Have Kermi Customer Service commission the system (or in the case of ventilation systems, a specialist company)
3. Annual servicing by Kermi Customer Service or by a specialist company

Residential ventilation advice

Kermi consultation and information

What residential ventilation is the right one?

Whether it's a single-family house or an multi-family house, a new-build or a building that has been modernised for energy efficiency – controlled residential ventilation provides fresh air and healthy thermal comfort. Either centralised or decentralised ventilation systems are suitable. This guide will provide you with an overview as to which residential ventilation system is suitable for which building and should help you choose one.

More information on the right residential ventilation

Kermi consultation and information

This is how important controlled residential ventilation filters are

Controlled residential ventilation continuously supplies living spaces with fresh air. The filters – outside air filters and extract air filters – play an important role here. What quality filters do you need? How often do the filters need to be replaced?

More information on filters for controlled residential ventilation

Links for specialist partners