Very often, maintenance of technically complex facilities is delayed “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. So when servicing air conditioning systems, it is difficult to assess the amount of potential costs for repairs and maintenance.
For example, consider a case for repair and maintenance of air conditioning systems at one of the facilities. These are administrative buildings, the microclimate of which is provided with the capacities of the installed precision air conditioners. For air conditioning and ventilation of the facility, precision air conditioners of the Emerson Liebert Hiross, HiRef, Uniflair brand are used. Such systems are used to control microclimate parameters, including at industrial facilities.
Take for comparative analysis the maintenance of 10 such air conditioning systems located at the same address. We calculate the cost of service per year for subscription service and service for one-time applications.
Calculation of maintenance of 10 air conditioning systems per year
| Type of work | According to the subscription service agreement | One-time service |
| Maintenance
(4 times a year) |
783 000 rub. |
860 000 rub. |
| Emergency trips, repairs
(based on 12 trips per year, according to statistics, 10% of equipment breaks once a month) |
350 000 rub. |
564 000 rub. |
| Expendable materials
(replacement of freon, filters 4 times a year) |
348 000 rub. |
355 000 rub. |
| Total cost of service | 1 481 000 rub. | 1 779 000 rub. |
Customer Benefits and Risks
All other things being equal, we get 1,481,000 rubles for subscription service. against the cost of 1,779,000 rubles. when servicing on one-time requests.
In the scenario of regular subscription service, all risks associated with the operation of equipment and the maintenance of air conditioning systems are assumed by the service organization.
An important factor is the presence of a contract with the organization, which defines the terms of reference, the rules of interaction, the timing of the work. With the signed agreement, the issue of prompt response and actions strictly according to the regulations has been resolved.
With the one-time service option, the customer is forced to choose a contractor each time, or refer 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 Contractor’s load level, as well as the nuance that he can 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 increase the cost unilaterally.
At the same time, when ordering the services of a year of integrated technical maintenance of 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 is worth noting that various parts and parts of precision air conditioners, which may require a certain type of repair or replacement of equipment parts, can fail at the customer’s site:
- Damage to the compressor (the normal operation depends on the correct installation);
- Damage to the fan of the indoor or outdoor unit;
- Leakage of freon (in this type of air conditioner, the amount of freon reaches 20 liters);
- The problem with the drainage drainage or drainage equipment (this happens mainly with rare and poor quality service).It can lead to leakage of drainage water into the room, fill the floor and server equipment;
- Power surges / voltage drops leading to burnout of electronic components (control boards, indoor and outdoor unit cards).
And these are not isolated cases, although they relate to the unforeseen expenses of the owner.
