Frequently аsked Questions

General questions

• • Why does water drip from the outdoor unit?

    Water forms in the outdoor unit during self-thawing.

  • Why doesn't the air conditioner start immediately after restarting?

    When restarting, the protection mechanism stops the compressor for about 3 minutes to prevent system overload. Wait 3 minutes, after which the air conditioning system should start automatically.

  • What is * Class A air conditioner? *

    In order to protect the interests of consumers and to orient them in the variety of offered models, from January 1, 2004. The European Union has imposed Directive 92/75 / EEC on the energy performance of commercial air conditioning systems. Applies to all air conditioners with cooling power up to 12kW. The directive defines energy efficiency classes for air conditioners from class A / the most energy efficient / to class G / with the lowest energy efficiency /. European Union experts, for example, have found that increasing the energy efficiency of air conditioners by only 5% significantly shortens the payback period for them. With an average service life of 10 to 13 years of Japanese air conditioners, the return on energy savings is between 2 and 3 years for highly efficient models / * class A * /. Air conditioning systems, energy class A are recommended for heating during the autumn-winter season due to the lower electricity consumption, respectively the lower cost of heating.

  • What is BTU / EER / COP?

    Most air conditioners have a capacity measured in British Heat Units (BTU). This is the amount of heat needed to raise the temperature in a pound (0.45 kg) of water by one degree Fahrenheit (0.56 degrees Celsius). 1 BTU = 1,055 joules. The ratio of BTU to W is 3.41 / 1, i.e. 3.41 BTU = 1 W. For example, an air conditioning system with a cooling capacity of 12,000 BTU emits 3520 W of cold. EER (energy efficiency rating) is equal to the ratio of the emitted power in W to the consumed electric power in W (watt) in cooling mode. For example, if an air conditioner emits 3520 W of cold and consumes 920 W of electricity, it has EER = 3.826. The COP coefficient is similar - energy efficiency coefficient for heating. The higher the EER and COP, the more economical the air conditioner.

  • Up to what outdoor temperature can we use the air conditioning system for heating?

    Heating with a simple (conventional / non-inverter) split system depends on both the outside temperatures and the manufacturer. For low-end manufacturers up to -2 ° C / -4 ° C outside temperature. For mid-range manufacturers up to -5 ° C / -8 ° C, for high-end manufacturers up to -10 ° C / -12 ° C. For inverter split systems up to -15 ° C / -20 ° C from the manufacturers of middle and high class air conditioners. In the hyperinverter models available on the market, the heating temperature range reaches a staggering -25 ° C outside temperature. Other additional factors influencing heating with air conditioning are: exposure of the room, insulation and wall thickness, type of windows, number of external walls and more.
    
    
  • What is different about inverter air conditioners? What are their advantages and disadvantages?
    
    Inverter air conditioners have compressors that can change their operating speed, and hence their power. This means that they can change their power depending on what is needed for the premises at any time. In conventional (non-inverter) models, the compressor runs at full power and switches off when the desired temperature is reached. The advantages of inverter air conditioners are their lower costs for electricity and higher efficiency in heating mode. The disadvantages are the higher price, a lot of electronics, more expensive repairs and more expensive spare parts.
    
    
  • Can two rooms be cooled / heated with the help of one air conditioner?
    
    We do not recommend heating or cooling two or more rooms with a single split (one indoor and one outdoor unit). The solution to this problem is if the two rooms have a common door. In one of them the air conditioning system can be installed against the door. The power must be in accordance with the total volume of the premises. The temperature difference of 2 - 4 ° C during heating / cooling is permissible!

  • How often do you need prevention?

    We recommend you at least once a year to spend some time and money on the maintenance of your air conditioner. It is performed by the technicians who installed the system. Through it the air conditioner is prepared for the summer / winter season. With a clean heat exchanger, filters, turbine, condensing bath and measured operating parameters Efficiency of the system increases, respectively the cost of electricity decreases. Each prophylaxis is bound by the warranty of the air conditioner and is an obligation imposed by the main importer of the given brand! Prevention is paid by the client!

Support

• • How to keep your air conditioner in good condition?

    In order for your air conditioner to perform its work processes normally, you need to clean the filters once every two weeks. How to clean the filters? Take them out of the air conditioner, beat them, rinse them thoroughly with water, let them dry, put them back in the air conditioner. - Easy and fast. Regular cleaning of the filters saves you up to 30% of the consumed electric energy, and also facilitates the work of the compressor and the fans.

Technical issues

• • Why is the air conditioner stopped or has low airflow?

    Initially in Heating mode, the fan speed is very low until the internal parts of the installation are heated. If the room temperature rises above the set temperature in Heating mode, the outdoor unit will stop working and the indoor unit fan will rotate very slightly. In case of self-thawing in Heating mode, the installation stops working for 6-12 minutes. At temperatures below +5 it is recommended, and at temperatures below -5 it is MANDATORY not to turn off the air conditioner.

  • Why is there an unpleasant odor coming from the air conditioner?

    Odors from the air in the room cannot be completely removed by the filters of the indoor unit.

  • Why do moisture and steam appear?

    During sudden cooling of air with high humidity, water condensation forms on the indoor unit. During self-thawing of the outdoor unit, water vapor may be released.

  • Why is there noise from the air conditioning system?

    The sound of running water can be heard during operation and immediately after stopping the air conditioner. It is possible for the coolant to overflow during system operation to last about 2-3 minutes. Self-thawing in Heating mode may cause a slight whistling sound.