FAQ Air Conditioning

Which is better: mobile or fixed air conditioning?
It depends on the needs and space. Mobile air conditioning is cheaper, flexible and suitable for rented apartments. Fixed air conditioning is more powerful, quieter and more economical for long-term use in larger spaces.

What are the advantages and disadvantages of mobile air conditioning?
The advantages of mobile air conditioning are lower initial costs, easy installation and the possibility of moving between rooms. The disadvantages are higher noise, lower efficiency, larger size and additional heat close to the unit.

What are the advantages and disadvantages of fixed air conditioning?
A fixed air conditioner is more efficient, less noisy and cools a larger space faster. It lasts longer and doesn’t take up floor space. The disadvantages are higher initial costs and the need for professional installation.

How much does it cost to run mobile and fixed air conditioning?
A mobile air conditioner consumes 1.2-2.5 kWh per hour (approx. 15-30 € per month). Fixed air conditioning consumes 1-2 kWh per hour (approx. 10-20 € per month). Although it has a higher initial price, it is more economical in the long run.

Which type of air conditioning is more energy efficient?
Fixed air conditioning is generally significantly more efficient. Modern split units with inverter technology save more energy than mobile air conditioners, which use more electricity for the same cooling capacity.

How does mobile and fixed air conditioning maintenance differ?
Mobile air conditioning in particular requires regular cleaning of the air filter and has a shorter lifetime. A fixed air conditioner needs professional servicing, refrigerant checking and cleaning of the outdoor unit to ensure its long-term reliability.

Why is vacuuming air conditioning and refrigeration circuits essential?
Vacuuming removes air, moisture and dirt that reduce the efficiency of the cooling system, increase energy consumption and cause faster compressor wear.

What happens if moisture remains in the cooling circuit?
Moisture can freeze in the evaporator and block refrigerant flow. At the same time, it reacts with the refrigerant to form acids that damage valves, heat exchangers and the compressor itself.

How does the vacuuming of a cooling system affect its efficiency and durability?
A properly balanced air conditioning or refrigeration system operates stably, consumes less energy and extends the life of key components, especially the compressor.

What equipment is used to vacuum air conditioning and refrigeration circuits?
Most commonly used are vacuum pumps (rotary oil or dry diaphragm), vacuum gauges to monitor pressure, and moisture separators to remove residual water from the system.

Does air conditioning vacuuming also help the environment?
Yeah. It reduces the risk of refrigerant leakage into the air, optimises energy consumption and thus contributes to the environmentally friendly and economical operation of refrigeration equipment.

Is the vacuuming of refrigeration circuits important from a safety point of view?
Definitely. Vacuuming eliminates the risk of pressure fluctuations and system overload, increasing both the operational safety and reliability of the air conditioner or chiller.

When is air conditioning vacuuming necessary?
In the installation, maintenance and repair of refrigeration and air conditioning systems.

Why is copper piping used in air conditioning?
Copper pipes are essential in air conditioning systems to transfer refrigerant between the indoor and outdoor units. Due to their high thermal conductivity and corrosion resistance, they increase cooling efficiency and system reliability.

What are the main advantages of copper piping over other materials?
Copper is one of the best thermal conductors – its conductivity is approximately 20 times higher than that of stainless steel. It provides rapid heat transfer, can withstand high pressure and temperature changes, is ductile and makes installation and service easy.

Why is it important to have insulated copper piping in the air conditioning?
Insulation helps maintain a stable refrigerant temperature during transport, reducing energy consumption and operating costs. High-quality insulation protects the pipe from UV rays, moisture and fire – also suitable for outdoors.

How long do copper pipes last in an air conditioner?
Copper piping has a high resistance to corrosion and mechanical stress. It can handle high refrigerant pressure and frequent temperature changes, so it reduces the risk of leaks and extends the life of the air conditioning system.

Are copper ovens compatible with all refrigerants?
Yes, copper tubes are compatible with most commonly used refrigerants, allowing for universal use across a variety of air conditioners.

How much does the copper pipe to the air conditioner (with insulation) cost?
The price depends on the diameter and thickness of the insulation. In residential air conditioners, 1/4″ and 3/8″ diameters are most commonly used; various types of insulation are available (flexible plastic, foam, rubber), and price differences are usually minimal

How does multisplit air conditioning work?
Multisplit air conditioning uses one outdoor unit to power multiple indoor units. Each one can cool or heat a separate room. The system works on the principle of refrigerant circulation and allows independent control of each zone in the house or apartment.

What is the difference between multisplit and monosplit air conditioning?
The monosplit has one outdoor and one indoor unit that are tightly connected. Multisplit allows 2 to 5 indoor units to be connected to one outdoor unit, saving space and providing greater flexibility in temperature control.

Is it possible to connect two indoor units to one outdoor unit?
Yeah. One outdoor unit can power two or more indoor units. Each can be controlled independently, including temperature, mode and run time settings.

How does the number of indoor units affect air conditioning performance?
When multiple indoor units are operating simultaneously, the power is divided between them. If some are switched off, the remaining power is transferred to the active ones, which can speed up cooling or heating of the room.

What are the main advantages of multisplit air conditioning?
Flexible temperature control in each room, space saving outdoors (only one outdoor unit), energy efficiency, quiet operation and the possibility of combining different types of indoor units according to the size and purpose of the room.