Technology & function
What does the KDT 210 cable exhaust air control do? The KDT 210 cable exhaust air control ensures safe operation of exhaust systems when a fireplace is being operated in the same room at the same time. The device uses a temperature sensor in the exhaust pipe to detect whether the fireplace (e.g. gas boiler, wood stove) is in operation. As soon as a preset temperature is exceeded, the KDT 210 cable exhaust air control automatically interrupts the power supply to the exhaust system - thus preventing dangerous negative pressure.
How does temperature monitoring work? A thermal switch is located on the fireplace's exhaust pipe. It triggers as soon as the exhaust gas temperature exceeds 40°C (fixed switching point). This information is transmitted via cable to the control unit, which then switches off the exhaust system.
Can I adjust the temperature? No. The trigger temperature is fixed at 40°C - a proven and safe value for detecting the ignition of fireplaces dependent on room air.
Installation
Where is the thermal switch installed? The thermal switch is attached directly to the fireplace's exhaust pipe - ideally with an included pipe clamp or mounting spring. The mounting point should be easily accessible and conduct heat so that the temperature is reliably recorded.
6 meter connection cable is not enough – what can I do? The pre-assembled cables of the KDT 210 set can be extended up to 25 meters using standard two-core cables. However, it should be noted that the KDT 210 is designed as an easy-to-install complete set for easy installation. For larger distances, it is recommended to use the more flexible individual components - such as the KDS 110 control unit in combination with the exhaust gas temperature monitor (item no. 201753).
The temperature sensor is integrated directly into the window contact cable by separating a wire and connecting the sensor in between - a proven solution for longer cable routes or individual planning.
Important note on maintenance: The sensor of the exhaust gas temperature monitor is extremely sensitive to mechanical stress. Please make sure the sensor before cleaning the smoke pipe - especially by a chimney sweep - it is essential to remove it from the pipe. In this way you avoid damage and ensure the long-term functional reliability of the system.
Legal
Does the KDT 210 cable exhaust air control meet the requirements of the combustion regulations? Yes, the device is suitable for use in conjunction with indoor air-dependent fireplaces. It meets the requirements of many state combustion regulations for protection against exhaust gas backflow due to negative pressure. see Fireplace Ordinance (§4 Abs. 2 FeuVo)
Is the device DIBt approved? No. The KDT 210 cable exhaust air control does not have DIBt approval. If your chimney sweep or the building authority requires approval, you should use an approved model such as the KDS 110 or the KDS 210 set.
purchase & service
Can I install the system myself? The mechanical part (assembly of the thermal switch) can be done yourself with a little technical understanding. However, the electrical installation should always be carried out by a trained electrician.
What happens if the thermal switch breaks? The thermal switch is a proven, purely mechanical component. Should it still fail, the exhaust system remains permanently blocked - a certain malfunction. Replacement is available as an accessory.
Where can I get spare parts or accessories? Accessories such as additional thermal switches or pipe clamps can be obtained directly from Elektrotechnik Schabus or from specialist retailers. Please have the article number or serial number of your device ready.