Whether we find the climate in a room pleasant or not mainly depends on the following three factors:

• Air temperature
• Air humidity and
• Pureness or quality of the air

Yet solid specialist knowledge, lots of experience and good air-conditioning devices are required to maintain these three factors in a room with constant quality. Which is why our employees provide detailed and expert on-site consultation.

• Pleasant room temperature
• Constant room temperature
• Cooling and heating possible with one device
• Low energy costs
• Particularly in spring and autumn, heating with an air-conditioning device is significantly less expensive than heating with conventional heating devices
• Air filtering
• Ionisation
• Increase in wellbeing and achievement potential
• Timer function can be activated via remote control

An air-conditioning device works in a similar way to a refrigerator. The refrigerant flows through the system and changes both its temperature and state. There are 4 processes in the refrigerant cycle:

1 The compressor, which pumps the refrigerant through the system, is the heart of the air-conditioning system. Upstream from the compressor, the refrigerant is in the form of a low-pressure vapour. In the compressor it is compressed under high pressure, heats up and flows towards the condenser.
2 In the condenser the hot, heavily compressed gas emits its heat to the surrounding air and turns into cool, heavily compressed liquid.
3 This liquid flows through the expansion valve, which reduces the pressure, the temperature drops below the temperature of the room to be cooled. The result is cold liquid refrigerant under low pressure.
4 This refrigerant now flows to the evaporator, where it absorbs heat from the room air through evaporation, and turns into gas at low pressure. The gas flows back to the compressor where the cycle begins again.

When an air-conditioning device is used as a heat pump for heating, this cycle is reversed.

Air-conditioning devices withdraw excess heat from the room and discharge this to the outside. In the case of a split air-conditioning device, the part of the air-conditioning system that does the cooling is in the house. The interior device is connected with the exterior device, which dissipates the heat, via a refrigerant line. For this reason, split air-conditioning devices are very quiet, easy to install and adapt to the room’s appearance.

Split air-conditioning systems are available in two different designs:
Mono split devices provide climate control for exactly one room. The installation unit comprises exactly one interior and one exterior device between which the refrigerant circulates.
Multi split systems are used where you would like to control the climate in several rooms but only want one exterior device. The exterior device can serve up to five interior devices, which you can use to set up completely individual and separate climate zones.

Our split air-conditioning devices work using inverter technology. This offers you the successful combination of convenience and energy efficiency. Whereas conventional air-conditioning devices only have two states and either work at full load or are at a standstill, the inverter devices work continually. This means they are not exposed to continual fluctuations in temperature, but rather enjoy gentle fluctuations in room temperature. In addition, the start-up period with inverter devices is almost one third shorter than with conventional devices. And thanks to the gradual function, the devices are much more efficient – which you will notice on account of the lower energy consumption. A study by the University of Essen shows that inverter devices require around 39% less energy in the cooling phase.

An air-conditioning device can do more than simply cool down a room in summer...
During the cooling phase, an air-conditioning device basically works like a refrigerator. It has a refrigerant cycle in which the refrigerant circulates. This absorbs a certain amount of heat from the room and transports it to the outside so that it remains nice and cool inside. As an environmental protection measure, we only use ecologically harmless refrigerants.

.. an air-conditioning device can also provide heat on cool days.
During heating the refrigerant cycle is simply reversed. Heat can still be extracted from the air at low temperatures. The refrigerant absorbs the heat and dissipates it to the room. Air-conditioning devices that can heat as well are known as heat pumps.