FAQ
Can I regulate a central exhaust fan motor using a standard speed controller?
No, Flexit does not recommend regulating a central exhaust fan motor using a standard speed controller. Such a solution may cause humming noise in the motor and result in undesirable operation. For correct and stable control, it is recommended to use a controller designed for this purpose, for example Flexit article number 09257.
Can I regulate the speed of a SAT EC or an EC exhaust fan using a standard speed controller?
No, a SAT EC or other EC exhaust fan cannot be speed-controlled using a standard speed controller. To regulate the speed of an EC fan, a controller designed for 0–10 V control must be used. An example of a suitable controller is Flexit article number 114729. Using the correct controller is necessary to ensure safe and proper operation.
Can I control all Flexit ventilation units with an app?
No, not all Flexit ventilation units can be controlled with an app. Only units in the Nordic and EcoNordic series can be controlled via the Flexit GO app. These units are designed for app-based control and allow easy monitoring and operation of the ventilation system directly from a smartphone or tablet.
Can I control the central exhaust unit (ULV, USV, USVX) using a switch instead of the kitchen hood?
Yes, central exhaust units of type ULV, USV and USVX can be controlled using a switch instead of via the kitchen hood. For this purpose, you can use a 3-speed switch with article number 09257. This allows simple and stable control of the fan speed directly from the switch.
Can I perform basic maintenance on my ventilation system myself?
Yes, basic maintenance can be carried out yourself if you are reasonably technically inclined and know what needs to be done. What type of maintenance can be performed, and how it should be done correctly, is described in the user manual for your product. By following the user manual, you ensure correct execution and safe operation of the ventilation system.
Can the wall hood be turned?
Yes, in many cases the wall hood can be turned, provided this is permitted in the installation instructions for the specific model. It is important that the ducts are still connected correctly and that any drainage and function are maintained as described by the manufacturer. Installation must always be carried out in accordance with the applicable installation instructions to ensure correct operation.
Can we get a routine or guideline for the use of low-profile ventilation ducts?
Routines and recommendations for the use of low-profile duct systems are described in Flexit’s brochures and installation manuals for the relevant duct solutions. These documents provide the necessary information on correct design, installation and use. To assess whether low-profile ducts are suitable for your project, we recommend contacting Flexit for guidance based on the specific project conditions.
My 3-speed switch 09257 is not working – what could be the cause?
If the 3-speed switch 09257 is not working, you should check the capacitors inside the switch. Defective capacitors can prevent the switch from controlling the speed levels as intended. The correct run capacitor has article number 121840.
My central vacuum does not start – what could be the cause if I do not hear a clicking sound from the relay?
If the central vacuum does not start and you do not hear any clicking sound from the relay, this indicates that the start signal is not reaching the motor. In such cases, the control board is usually defective and must be replaced.
My central vacuum starts but stops after a short time – what could be the cause?
When the central vacuum starts and stops after a short time, this is often caused by partial or complete blockages in the ducting or hose. This restricts airflow, which can cause the motor to overheat. To protect the motor, the overheating protection will activate and shut down the vacuum. Check the hose and ducting for blockages and ensure free airflow before using the vacuum again.