Frequently Asked Questions - FAQ

How to choose a fan for a room?

The performance of the fan should be adjusted to the specific room where it will be located. When selecting a fan, you should take into consideration the type of room (its purpose) and its cubic capacity (length x width x height of the room)

We calculate the performance according to the formula:

cubic capacity x air exchange rate for a room

Table of multiplicity according to rooms.

 

type of roomair exchange rate
bathroomx5
kitchenx4
loundry roomx2
bedroomx2
living roomx2

 

 

 

 

 

 

 

More information on selecting a fan for a room can be found in the “knowledge zone” section of the article How to correctly choose a fan for a room?

 

How to mount dRim panel on fan or grille?

The panel on the fan and the dRim grille is mounted in exactly the same way.

From the top, slide the rear part of the panel onto the mounting on the fan or grille until you hear a characteristic click – this sound indicates that the panel has been hooked using a securing element and it is not possible for the panel to detach spontaneously and slide off. To remove the panel, press your finger on the securing element located at the bottom of the panel mounting and slide the panel upwards along the fan or dRim grille.”

Montaż panelu na kratce dRim
Drawing: Installation of the panel on the dRim grille.
I connected the fan and it only worked for 3 seconds? Why?

The first operation of the fan directly after connecting it to the installation is called a test run. The fan will start for 3 seconds and then stop.

After that the fan will work for a specified time depending on the type of fan (S, TS, HS, etc.) and its settings.

What do the symbols on fan boxes mean: S, TS, HS+TS, RS, RMS...?

This designation represents the version of a given fan model. Each domestic fan is available in several versions, differing in the method of activation, operating time, and deactivation. Below is a list of all version designations:

   S   (standard) Basic model. Can be controlled using its own switch, for example, together with the lighting.

   PS  version with a switch. It is connected to a standard socket using a plug and has a switch on a decorative cord.

   TS    (time sensor) timer controller, which ensures that the fan will continue to operate for a specified time, plus a time set on the controller after the power is turned off.

This is useful, for example, after a bath, where moisture is still being expelled even after the user has left the bathroom.

   HS+TS   (higro sensor + time sensor) in addition to the timer controller, it has a humidity sensor, which the user sets within the range of 40 – 80%. The fan activates when the set threshold is exceeded (for example, during bathing) and operates until the humidity level is reduced plus approximately 3 minutes – to maintain the effect.

   DTS   (delayed time sensor)

timer controller with delay. It activates 3 minutes after power is supplied (for example, when the light is turned on with a common switch). If the power is cut off during this time, the fan will not activate. If power is still supplied after this time, the fan will activate and operate until the power is turned off plus for the time set on the controller.

This is useful when the user enters the room briefly, for example, to wash hands or retrieve a needed item.

  MS   (motion sensor) infrared motion sensor that activates the fan when it detects the presence of a user and operates for a specified time.

  RMS   (microwave motion sensor) micro-wave motion sensor that activates the fan when it detects the presence of a user and operates for a specified time.

Where to mount the fan?

Always remember that the fan should be mounted as high as possible. It must be placed opposite the areas where air exchange occurs, maintaining at least a 3-centimeter gap from the wall and ceiling surfaces. Additionally, it should be installed close to steam sources, but in such a way that it cannot be touched. It is also important to consider the IP protection parameters that the fan meets.

REMEMBER! Fans should be installed and removed by a qualified electrician with certification.

 
REMEMBER! Fans should be installed and removed by a qualified electrician with certifications appropriate for the respective country.
Which ventilation system is better: round or flat?

The most important aspect in choosing the type of system is certainly selecting the duct cross-section according to specific needs, which determines the system’s efficiency.

Although a round cross-section is preferred due to lower pressure drops in the system with the same cross-sectional area, it is also possible to use rectangular cross-sections with similar parameters due to spatial and installation constraints.

airRoxy offers ventilation systems with cross-section of Ø 100 and Ø 125 for round systems, and 110 x 55 mm and 220 x 55 mm for flat systems.

How to maintain fans with a humidity sensor (HS+TS)?

To ensure the correct and long-lasting operation of HS+TS fans (with a hygrostat), regular maintenance (cleaning) should be performed. In addition to the standard maintenance of the fan, cleaning of the humidity sensor (hygrostat) should be carried out.

Depending on the conditions in which the fan operates, cleaning should be done every 2-3 months. The hygrostat should be cleaned of dirt using, for example, a cotton swab with a degreasing substance, such as isopropyl alcohol. Dirt accumulation on the sensor and failure to clean it will result in improper operation (the hygrostat will not turn off the fan at the appropriate time).

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Why doesn't the HS+TS fan turn on immediately after a slight increase in humidity levels in the room?

The HS+TS airRoxy fans are equipped with an analog hygrometer, which responds to sudden changes in humidity. ThisThis type of sensor is sensitive to sudden changes in the humidity level in the room.

The adjustment of the analog hygrometer involves increasing or decreasing its response frequency at the moment of a sudden change in air humidity. That is, adjusting the dial between 40% and 80% controls the hygrometer’s sensitivity to sudden changes in humidity, rather than reacting to even small differences (the percentage value on the hygrometer’s dial does not mean that the fan will turn on when the room’s humidity reaches that specific percentage value).

What is the warranty period for airRoxy products?

For most domestic airRoxy fans, there is a 3-year warranty.

For industrial fans, the warranty period is usually 2 years.

To familiarize yourself with the warranty conditions of a specific product, go to the “Instructions and Warranty” section or visit the product page and go to the “Documents” tab.

You will find a printed version of the instructions and warranty in the box of each airRoxy fan.

Can I buy directly from airRoxy?

At the moment, we do not conduct retail sales.

You can purchase from us if you run a business. To do this, please contact our export department.

Do I need back valve?

A back valve is a ventilation component mounted on the fan collar or further along the ventilation system that prevents the flow of backdraft air and unwanted odors after the fan is turned off.

In our offer, you will find both back valves mounted on fans (back valve, dRim check valve) and those mounted on ventilation system elements.

What is the airflow of the fan?

It’s the fan’s capacity to move a specific volume of air within a unit of time. Airflow is measured in m3/h. 

All fan parameters, including the airflow, can be found in the ‘Models and Technical Data’ sheets in the descriptions of individual products on the website, as well as in the airRoxy product catalog.”

How to connect and set up the fan with the HS+TS hygrostat version?

The method of connecting to the electrical installation and the method of regulation for all airRoxy fans, including the HS+TS version, can be found on the website under the ‘Connection’ tab in the description of each fan, as well as in the user manuals.

REMEMBER! Installation of the fan should be carried out by a qualified electrician with SEP (Electrical Power Engineering) qualifications.

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