The picture shows a glass surface on which numerous raindrops are scattered. The drops form a random pattern and allow the light to shine through diffusely, creating a calm and cool atmosphere.The picture shows a glass surface on which numerous raindrops are scattered. The drops form a random pattern and allow the light to shine through diffusely, creating a calm and cool atmosphere.

Dew Point Monitoring and Ventilation Control

Avoiding Condesation and Mould Formation by Temperature and Ventilation Control

The dew point temperature is that temperature at which condensation develops on a surface.

For example: At an air temperature of 24.0°C and at 60% relative humidity, the dew point is at a temperature of 15.8°C. If there is a surface in this room that is 15.8°C or colder, water droplets will develop on it.

The objective of dew point monitoring is to avoid this.

The image shows a diagram of a climate control system in a building. It emphasises the dangers of condensation on cold pipes and describes the functions of various components such as the room controller, temperature sensor and air conditioning actuator. The image shows a diagram of a climate control system in a building. It emphasises the dangers of condensation on cold pipes and describes the functions of various components such as the room controller, temperature sensor and air conditioning actuator.
Background knowledge

How does condensation occur?

In buildings, condensation, sometimes also referred to as „dew water“, occurs particularly on cooled pipes and surfaces of air conditioning systems.

The moisture of the warm room air can settle here if surface and dew point temperatures approach similar values.

Measures

What can I do about condensation?

Thanks to the monitoring process, the building automation system can implement timely measures in order to avoid droplet formation.

For example, the temperature of the coolant may be raised (reduction of air conditioning), the room temperature may be raised, or the air humidity lowered (ventilation).

The picture shows a glass surface with numerous drops of water evenly distributed. The background is a light blue colour, giving the impression of rain on a window.The picture shows a glass surface with numerous drops of water evenly distributed. The background is a light blue colour, giving the impression of rain on a window.
Elsner Elektronik devices support

Smart combination against condensation water

Manual monitoring is very time-consuming and uncomfortable. Therefore, many devices from Elsner Elektronik offer integrated dew point monitoring.

Through the smart combination of Elsner Elektronik sensors, room controllers and actuators, the danger is recognised in good time and countermeasures can be taken.

Connected windows, fans, heating and air conditioning systems are controlled to prevent the formation of condensation water.

Devices for dew point monitoring in our Online Shop

Cala Touch KNX AQS/TH 3.x
Cala Touch KNX AQS/TH 3.x
Room Controller, CO2/Temperature/Humidity Sensor
€549.90
incl. 19% VAT, excl. shipping
Cala Touch KNX TH 3.0
Cala Touch KNX TH 3.0
Room Controller with Temperature/Humidity Sensor
€382.00
incl. 19% VAT, excl. shipping
T-NTC
T-NTC
Temperature Sensor
€56.60
incl. 19% VAT, excl. shipping
{ node.setAttribute('aria-selected', node.classList.contains('active')); });" >
Download

Further information on dew point monitoring

Download the info sheet on dew point monitoring here!

Download Dew Point Monitoring Info Sheet
The picture shows a stack of information sheets with the title ‘Dew point monitoring’. The ‘elsner’ logo can be seen at the bottom left. The sheets lie on a two-colour background consisting of white and light blue.The picture shows a stack of information sheets with the title ‘Dew point monitoring’. The ‘elsner’ logo can be seen at the bottom left. The sheets lie on a two-colour background consisting of white and light blue.

Legal guarantee

Harmonised EU legal guarantee notice

Minimum two-year legal guarantee protection for goods sold in the European Union.

Consumers can claim their rights under the legal guarantee of conformity, for example if goods:

  • do not match the description;
  • do not function as intended.

Sellers are liable for any lack of conformity which existed when the goods were delivered, and which becomes apparent within the legal guarantee period. Sellers in such a situation are required to offer:

  • free repair or free replacement;
  • in some cases, a price reduction or full reimbursement.

Some countries have a longer legal guarantee period. For second-hand goods, a shorter period may apply, but not less than one year.

What to do if you receive non-conforming goods:

  1. Contact the seller as soon as possible to report the issue;
  2. Provide proof of purchase, such as a receipt, invoice, or bank statement.

Sellers and producers may also offer commercial guarantees, which apply independently from the legal guarantee. For example, you may see this GARAN label representing a commercial guarantee of durability offered by the producer at no additional cost and covering the entire good.

For more information on your rights in a specific country, visit the page below or ask the seller. https://europa.eu/youreurope/guarantees

https://europa.eu/youreurope/guarantees