Glossary

DAIKIN

DAIKINabout company "We strive for sustainable growth and a sustainable society through cutting-edge technology and extraordinary human resources"- Masanori Togawa, President and CEO, Daikin Industries, Ltd. Air is important to our existence and…

Dakon

Dakon boilersThe history of the Dakon company dates back to 1949. It was in this year that several operations from different periods were united together. Well, they work successfully so far. In 1965, they started producing hot air boilers up to…

Danfoss

Danfoss is a world-renowned manufacturer of innovative technologies and solutions for energy, air conditioning, cooling, heating and automation. The company was founded in 1933 in Denmark and has since become a leading global player in the…

DC fans

DC fans are fans that are powered by direct current (DC), as opposed to traditional AC fans that are powered by alternating current (AC). These fans are characterized by some advantages compared to AC fans, such as higher energy efficiency and…

De-Dietrich

De Dietrich is a renowned French company with a long history of manufacturing and supplying high quality heating systems, home appliances and engineering solutions for energy efficient buildings. The company was founded in 1684, making it one…

Decibel

Decibel (dB) definitionDecibel (symbol: dB) is a logarithmic unit that indicates ratio or gain. Decibel is used to indicate the level of sound waves and electronic signals. A logarithmic scale can describe very large or very small numbers with…

Degree of efficiency

The degree of efficiency of heating boilers and systems is a measure that expresses how well a given boiler or system uses the available energy for heating and water heating. It expresses the ratio between the input energy (fuel or electrical energy)…

dehumidifier

A dehumidifier is a device that is used to remove excess moisture from indoor environments such as rooms, bathrooms or warehouses. These devices are important for maintaining adequate indoor humidity levels, as excessive humidity can cause a…

Demineralization

Demineralization is the process of removing mineral salts and impurities from water, which leads to obtaining high purity water. This process is often performed in laboratories, industrial facilities, manufacturing processes and other…

Demineralization rinsing

Demineralization rinsing is a procedure used to remove minerals and mineral compounds from various systems and equipment, especially in the field of technical and industrial applications. The goal of the demineralization rinse is to ensure the…

DEVI

DEVI is an international company of Swedish origin, which is specialized in heating solutions and systems for interiors and exteriors. The DEVI company is known for its technological innovations and quality products that help maintain the…

DEVIflex

The world leader in electric floor heating, DEVI presents a new generation of cables for interior floor heating installations. The new cables meet the requirements of the latest regulations and are covered by a 20-year warranty - DEVIwarranty.New…

DEVIreg

DEVIreg is a brand of thermostatic controllers that are designed to control electric heating systems, especially floor heating. These controllers allow users to precisely set and control the temperature in rooms or on the floor where an…

DEVIsafe

The new DEVIsafe cables complement the existing DTCE range of outdoor cables.We developed DEVIsafe in collaboration with installers to ensure that their most important requirements were met. The fact that the new cables can be installed down to…

DHCP

DHCP stands for "Dynamic Host Configuration Protocol" or in Slovak "Protocol for dynamic host configuration". It is a network protocol used to automatically assign configuration information to devices that connect to a network. This information…

diagram

graphic representation of numerical data and relationships using geometric shapes (links of points, columns, circular sections), or images or records on a map basis, see diagram (illustration)in botany: abbreviated to floral diagramin chess: a…

dielectric fitting

A dielectric fitting is a component used in piping systems to separate different material types to minimize the electrochemical reaction between them. These fittings are usually made of a dielectric material, which means they cannot conduct…

Differential pressure

Differential pressure is the difference between two pressure values at different points or times. It is the pressure difference that exists between two points in space or between two sides of an obstacle such as a wall or filter. In practice,…

Digital Floating Code

Digital Floating Code (English Digital Floating Code) is a technology used in some security systems, especially in security systems for opening doors, gates or garage doors. This technology is often used with remote controls (so-called remote…

diode

A diode is an electronic component that allows electric current to flow in only one direction. It is a semiconductor device that contains two electrode terminals - an anode and a cathode. The diode works based on the p-n junction effect…

Direct fire

Direct fire is a type of heating element that is used to heat rooms. It belongs to electric heating systems. Direct heaters are usually installed on the wall, under the window or on the ceiling of the room and are used for additional heating or…

Dispersants

Dispersants are chemical substances that are used to disperse impurities, solid particles or oils in water environments. Their main function is to ensure that these impurities do not aggregate into larger particles, but remain evenly dispersed…

dispersing agent

A dispersant is a form of surfactant. However, not all surfactants are dispersants. A surfactant can act as a detergent, wetting agent, emulsifier, foaming agent in addition to acting as a dispersing agent. Usually both are organic…

displacement

The physical quantity "displacement" is a basic mechanical quantity that expresses the distance or movement of a body from one place to another. It is usually denoted by the letter "s" and the unit in the SI system is the meter (m). The…

Display

Display or display can be: a part of a device that displays graphic or alphanumeric characters or groups thereofthe entire display device at the output of the computer.