Single room ventilation unit with heating and cooling XROOM

...is unique product containing ventilation unit and heating, cooling unit in one . Systems work independently.

It is currently the quietest device on the market in its category with significantly lower power consumption.

The unit matches Energy class A+


The unit comes with CO2 sensor as standard
and optionally also RH and Radon sensors.

Xroom is manufactured in two sizes Xroom 100 and Xroom 250.

These units have wide range of usage in commercial and residential sector f.a. : in hotels, offices, schools, hospitals, apartments, family houses, …

Decentrální větrací jednotka Xroom

Product benefits

High airflow

Quiet operation and high efficiency

Ventilation, heating and cooling in ONE

Videos

Basic description

Xroom is designed to be ventilation unit and the heating, cooling unit as well. The ventilation operation and the heating, cooling operation works independently one on each other. This means, that during ventilation request the heating does not have to work and oppositely. Systems can operate at same time as well. The water and electric heater do not operate as the post heaters only, they operate as solid-regular air heaters.

Technical parameters
    Xroom 100 Xroom 250
Type of recovery exchanger   HRV / ERV HRV / ERV
Preheater output kW 0,27 0,54
Electric heater output kW 0,5 1
Water heater output (75/60/20°C) kW 1,4 3,5
Nominal airflow / boost m3/h 100 / 215 250 / 350
Accustic pressure in 3m  dB (A) 32,1 32,6
Power supply V/Hz 1~230 / 50-60 1~230 / 50-60
Power consumption / boost W 30 / 165 59 / 169
Recovery efficiency (acc EN308) % 89 / 90 87 / 86
Specific energy consumption   A+  A+ 
Decentrální větrací jednotka Xroom

Frequently asked questions and answers

Decentral vs. central ventilation ???

Decentral ventilation is mechanical ventilation for one room only. Central ventilation is mechanical ventilation of more rooms by once device. Central ventilation is provided by units with bigger dimensions than units for decentral ventilation, since these has to supply higher air volume. Units for central ventilations are usually located in the technical room where they are not annoying the users by high noise level and they are not blocking any space. Central ventilation systems require ducting for supply and extract air, which are often difficult to place in the way to do not disturb. Central ducting systems require cleaning every year, which is complicated. Cost investment of the installation of ducting and theirs covers are usually in the same level as the purchase price of the ventilation unit. Another aspect is regulation and controlling of these systems in order to achieve minimum operation costs and distribution of the air to there where is needed. The advantage is, that suction and exhaust does not have to be located on the outside wall and if so, there are always only two openings. Decentral units are used for ventilation of one room only. Theirs dimensions vary from very small ones located in to the wall, to bigger ones with dimensions similar to smaller radiator. These units ventilate only selected rooms and when needed. Theirs advantage is, that these units can be operated according to sensors of quality of the air (Air Quality sensors -AQS), typically by CO2 sensor or relative humidity sensor. Thanks to the sensors the unit ventilates only when the concentration of pollution in the air is above set level – this means “ON DEMAND”. This ensure, that the energy consumption during ventilation is at minimum level, about 35% lower than ventilation without sensors. More powerful units can supply in to the room bigger air volume of the air in case of need than central units and thus can ventilate the room faster and better.

It is necessary to consider more suitable solution for each specific project.

How to choose right size of the unit ???

One of the mains parameters of the unit is the air volume which is the unit able to supply in to the room. Value which is usually used for choice, is quantity of the air at one square meter of the floor space. Manufactures usually used 25m3/h at 20m2. This is half quantity which ensure healthy climate. For the most cases are better to use quantity of the air need at quantity of the people inside the room. Typical value is 25m3/h/person.

It is important to choose higher value of both methods in specific case anyway.

What means 3 in 1 ???

Xroom is designed to be ventilation unit and the heating, cooling unit as well. The ventilation operation and the heating, cooling operation works independently one on each other. This means, that during ventilation request the heating does not have to work and oppositely. Systems can operate at same time as well. The water and electric heater o not operate as the post heaters only, they operate as solid-regular air heaters.

It is good to know, that Xroom unit 3in1 can replace the radiator (or electric convector) and savethe space thus.

What are the operation costs ???

Operation costs are generated by heating costs, costs to operate the fans and by maintenance and service costs. Heating costs are lower about 85% in comparison with ventilation by windows for the same time period. Operation costs of the fans are
thanks to the EC fans 1 EUR/month when considering average usage four hours a day every day.

Costs of filter replacement are around 10 EUR/month when replaced twice a year. 

How difficult is the maintenance ???

The Xroom is designed to be maintenance free. Only thing needs to be under the control is filter clogging. Good condition of the filters ensures smooth operation and stable high level heat recovery and moisture regeneration. Clogged filter is signal by flashing diode “filter” on the control panel. In such case is necessary to follow the operation manual. The front cover comes to remove and by opening two plugins with inscription “FILTER” is possible to access and replace these filters by new clean ones. The replacement of the filters to be confirmed by pushing the RESET button and that’s it.

It can not be easier.

What means enthalpic regeneration ???

Enthalpic regeneration (ERV) means backwards gaining of the moisture from the extract air. The supplied air is so dry in the winter, that it can reduce the indoor relative humidity in the air below 20%. Such a low relative humidity cause drying-off the skin, mucous membrane and wood- -made furniture and floors. Dry mucous membrane makes breathing less comfortable and cause respiratory diseases. Dehydration of the skin makes wrinkles and the drying-off the wood can damage furniture or floors. Ideal relative humidity inside should be around 50%. The solution is usage of Enthalpic Recovery Exchanger (Xvent recommends).

It is important to know that enthalpy heat exchangers always also recover heat.

Why is mechanical ventilation needed ???

Ventilation by windows is in many cases enough (residential areas, alone houses close to the forest), but does not ensure the energy savings (heat in the winter, cold during summer). But if there is noise outside, pollen, annoying smell or freezing conditions, the ventilation by window is not the best solution. Even thought in the summer, if the room is equipped by air conditioner, is the opening the windows not suitable. In all cases mentioned above is the mechanical ventilation senseful solution.
If the unit is equipped by heat recovery and/or moisture regeneration, the energy savings reach 85%, which will have to be supplied by heating or by cooling device otherwise.

It is important to consider if the priority is price or health.

Why sensors (air quality sensors) ???

Sensors enable automatic operation of the unit. The unit operates only, when the inside quality of the air is worse than requested. When fulfilling the air quality request, such a solution generate only minimum ventilation costs in the real operations! This also means lower operation costs and faster paid back of the investment to ventilation unit purchase. Xroom enables connection of CO2 sensor, RH sensor and radon sensor.

It is important to consider, if the more important are operation costs, or purchase investment.

How complicated is the installation ???

Installation of the unit is simplified, that handyman can install it by him self. Installation does not require any specialist. The metal installation template, which is part of the delivery, is fixed to the wall by few wall-plugs and screws. There has to be drilled out two holes in to the wall according to two cut outs in the template. (This is most difficult part of the installation). There are specialists for drilling the holes in to the wall and it is good idea to hire them. Plastic ducts comes to be fitted in to the holes in the wall then according to the manual. Plastic ducts comes to be cut out based on the thickness of the wall. Ducts in the wall comes to be fixed by installation foam and the outlet grill comes to be attached to the outside wall. The body of the unit comes to be fixed to the installation template by bolts and secured by nuts. Unit with water exchanger is equipped with flexible hoses, which comes to be connected to the heating pipe system with thermostatic valve. Electrical cable is plugged in to the socket, front cover comes to put on and that’s it. Total installation time is no longer than two hours.

It is important to read the installation manual or to watch the installation video, which you can find at our webpage or at Youtube.com.

What are the units “PUSH-PULL” ???

Those units use accumulation of the heat in the porous material, thru which fresh air flows. The units are controlled in the way, that one minute the unit extracts the hot air from the room thru the exchanger and the heat exchanger gets heated. Exactly the same long time period the unit supply air in opposite way thru the hot exchanger, from which the air gets heated. These units are popular due to its low price. It is good to know the important facts, which suppliers do not show: -Real average
efficiency of such a device is not higher than 50%. Stated value around 90% is valid only few seconds after the air flow direction change. Air exchange inside the room (ventilation intensity) is half of the stated value, because supply of the air takes
only one half of the operation time period.

From the mentioned above is clear, that these units are not comparable with standard heat recovery units using plate or rotary heat exchangers.

Accessories

Radonové čidlo
XR-010-EPS BOX
XR-010-Náhradní filtr F7 (2ks)
XR-010-Náhradní filtr M5 (2ks)
XR-025-Náhradní filtr F7 (2 ks)
XR-025-Náhradní filtr M5 (2ks)

References

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