Maintenance of air conditioning systems. Which format is more profitable: regular service or one-time visits upon request?

Very often, maintenance of technically complex objects is postponed "for later". Work begins when the situation is already out of control. At the first stages, it is very difficult to calculate in advance all the risks, breakdowns and problems that you will have to face. Similarly, when servicing air conditioning systems, it is difficult to assess the potential cost of repair and maintenance.

For example, consider a case for the repair and maintenance of air conditioning systems at one of the facilities. These are administrative buildings, the microclimate in which is provided with the capacities of the installed precision air conditioners. Precision air conditioners from Emerson Liebert Hiross, HiRef, Uniflair are used for air conditioning and ventilation of the facility. Such systems are used to control microclimate parameters, including at industrial facilities.

Let's take for a comparative analysis the maintenance of 10 such air conditioning systems located at the same address. We will calculate the cost of service per year for subscription services and services for one-time requests.

Calculation of maintenance of 10 air conditioning systems per year

Benefits and risks of the Customer

All other things being equal, we receive 1,481,000 rubles for subscription services. against the cost of 1,779,000 rubles. when servicing one-time requests.

In the scenario of regular subscription service, all the risks associated with the operation of equipment and maintenance of air conditioning systems are assumed by the service organization.

An important factor is the presence of an agreement with the organization, which contains the terms of reference, interaction regulations, and the terms of work. With the signed agreement, the issue of prompt response and actions strictly according to the regulations has been resolved.

With the option of a one-time service, the customer is forced to choose a contractor each time, or to turn to the previous one, because of which the response time increases, it is regulated and not fixed. It is necessary to take into account the level of the Contractor's workload, as well as the nuance that he may refuse to work at the last moment or increase the cost of services. When working under a contract, the Contractor bears all responsibility and cannot unilaterally increase the cost.

At the same time, when ordering a one-year comprehensive maintenance service for engineering systems of a building, air conditioning maintenance services are included in the complex and become even cheaper.

Work options that increase the cost of emergency services

It should be noted that various parts and components of precision air conditioners may fail at the customer's facility, which may require a certain type of repair or replacement of equipment parts:

• Compressor breakdown (normal operation depends on the correct installation);
• Breakdown of the fan of the indoor or outdoor unit;
• Freon leakage (for this type of air conditioner, the amount of freon reaches 20 liters);
• A problem with the drainage or drainage equipment drainage (it happens mainly with rare and poor-quality maintenance). May cause drainage water to leak into the room, flood the floor and server equipment;
• Voltage surges / dips, leading to burnout of electronic components (control boards, boards of indoor and outdoor units).

And these are not isolated cases, although they relate to the unforeseen costs of the owner.