Regulations and importance of servicing air conditioning equipment

Climate control equipment is a complex engineering system, the efficiency and durability of which directly depend on operating conditions and regular maintenance. Many owners remember the service only when breakdowns occur: when the air conditioner stops cooling, an unpleasant smell appears, or water drips from the indoor unit. However, scheduled maintenance is not a repair, but a way to prevent it, save energy and ensure clean indoor air.

Why maintenance is necessary: ​​economics and health

Ignoring routine maintenance leads to contamination of the heat exchangers, a decrease in the refrigerant level and an increase in the load on the compressor. This entails:

• Decrease in efficiency: A dirty filter and heat exchanger reduces operating efficiency by 30–50%.
• Cost growth: The equipment operates at its maximum capacity, consuming more electricity.
• Risk of breakage: Compressor overheating is the most common cause of costly repairs.
• Deterioration of the microclimate: Bacteria and mold develop inside the blocks.

To ensure trouble-free operation, it is recommended to contact authorized service center, whose specialists follow strict manufacturer regulations.

Maintenance of split systems and multi-split systems

Household and semi-industrial air conditioners require attention at least twice a year: before the start of the season (spring) and after its end (autumn).

Basic work regulations for split systems include:

• Cleaning filters and heat exchanger of the indoor unit. Dust interferes with heat removal, which is critical for any model, be it classic wall blocks or design solutions.
• Disinfection of the drainage system. Flushing the bath and tubes prevents blockages and leaks.
• Outdoor unit maintenance. Cleaning the condenser with a high-pressure apparatus (Karcher) from poplar fluff and street dirt.
• Checking the refrigerant pressure. Natural freon leakage is 6–8% per year. Timely refueling will save the compressor.

Particular attention is paid to complex systems such as multi-split systems, where several indoor units are connected to one outdoor unit. Failure of an external unit will leave several rooms without climate control.

Specifics of servicing VRV systems

Multizone systems VRV Daikin - These are high-tech complexes that serve entire buildings. Here the regulations are much stricter and require computer diagnostics.

Engineers check the operation of inverter boards, electronic expansion valves and analyze error codes in the system memory. An important step is checking VRV outdoor units for the absence of vibrations and correct operation of the fans.

Chiller maintenance schedule

Chillers are high-power industrial equipment, the downtime of which can stop the operation of a factory or shopping center. Service chillers requires highly qualified personnel.

Key stages of chiller service:

1. Oil analysis. Compressors are checked for acidity and the presence of impurities in the oil.
2. Checking the hydraulic circuit. Monitoring the operation of the flow switch, checking the pump group and the quality of glycol or water in the system.
3. Cleaning capacitors:

• For air cooled chillers — blowing and washing the condenser lamellas.
• For water cooled chillers — chemical cleaning of heat exchangers from scale and deposits, checking the operation of cooling towers.

It is also important to check the condition remote capacitors, if they are provided for by the system design.

Fan coil servicing

Fan coils are the terminal devices in chiller-fan coil systems. Their maintenance directly affects the health of people indoors, since it is through them that the air we breathe passes.

Depending on the type of device, the work has its own characteristics:

• Cassette fan coils: They require thorough cleaning of drainage pumps, as they are most susceptible to blockages.
• Duct fan coils: They are often installed in the ceiling space, so it is important to check the tightness of the air ducts and the condition of the filter inserts.
• Floor-ceiling и wall models: Mandatory cleaning of the blinds and checking the balancing of the fan to eliminate noise.

Ventilation and air quality

Don’t forget about supply and exhaust ventilation systems. Service central air handling units (AHU) includes replacing air filters, checking fan drive belts and cleaning heat recuperators.

Conclusion

Timely service is an investment in reliability. Correct commissioning and regular support of Daikin equipment guarantee its operation for decades. Trust your equipment to professionals.

For consultation and ordering service, you can contact us through the section Contacts.