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Customer

JSCo "RZD"
Owner and operator of the Russian railway network infrastructure, one of the largest transport companies in the world.


Task

To modernize the air-conditioning system of the server room in the company's administrative building.



Design features

Step 1. Developed a technological solution based on accurate calculations
The server room contains 24 server racks. During day-and-night operation of the equipment, an excess of heat occurs, which increases the temperature in the room and exerts downward pressure on the equipment operation.
At the preliminary stage, the I-Climate specialists calculated the heat input into the room. Based on the results, it was decided to install three cabinet-type air conditioners Stulz ASR 451 A. For maximum system reliability, the project provides for N + 1 redundancy scheme, with the change of working and backup air conditioners once a day.

Step 2. Organized installation and commissioning works
We installed all the equipment, taking into account the specifics of the project, with strict adherence to the technological requirements and manufacturer's recommendations.

Step 3. Created a unified automated control system
The air conditioners were united into a single network using automated control and monitoring tools. The system was connected to the data transmission network on a PC. As a result, were provided:

Thus, the solution developed and implemented by "I-Climate" will allow to maintain steadily the optimal temperature and humidity level without constant maintenance requiring.

The following works completed

The design documentation for the air-conditioning system for engineering spaces worked out, stage "R"
Equipment supplied
Construction and installation works carried out
System commissioning completed

Results

Three cabinet freon precision air conditioners Stulz ASR 451 A according to the N + 1 redundancy scheme installed.
The system is able to maintain the required microclimate parameters in the server room day-and-night all year round.

The following stable indoor rates achieved

Total capacity without redundancy:
106 kWh
Main equipment redundancy scheme:
N+1
Operating temperature of the outside air during the warm season:
+35 °C
Operating temperature of the outside air during the cold season:
-35 °C
Indoor air temperature:
20 °C
Room relative humidity:
50%

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