The key specifications in the areas of efficiency, security and sustainability placed the highest demands upon the building and domestic technology. Caverion Österreich is responsible for the project execution of heating & sanitation, ventilation & air conditioning, fire protection systems and control systems. The main focus is on the cooling devices for the server systems of which there are currently six.
Specifications and guidelines R-IT (IT guidelines), VZM – Groblastenheft (rough specifications book), circuit diagrams, building site security
Cooperation with various technical security and electrical installation companies
Function tests: Endurance test according to VZM guidelines
Labelling system of all HVAC installations according to VDD and QR-code
Documentation in accordance with R-IT specifications
Energy monitoring of measurement, control and regulation technology
April 2013 until January 2014
Facts about the building (final stage)
Property: 24,000 m²
System rooms area in total: 5,000 m²
System rooms individually: 400 m²
Order volume: approx. EUR 8.5 million, execution by Caverion Österreich (branches in Graz / Markt Allhau)
The focus of the entire project is the supply of refrigeration to the server rooms that currently have five refrigerating machines with a total output of 6,500 kW: The waste heat is discharged via five back cooling units with a humidifying system. They are fully deployed especially during the free cooling operation. Corresponding redundancies have been considered according to the specification. The climatic chambers are operated with relatively "high" cold water temperatures to facilitate the use of the free cooling function completely and in the long-term depending on the external temperature. The water supply of the humidifying system is provided using spring water whereby provisions have been made for corresponding underground storage tanks as a possible emergency operating mode. The servers are cooled using climatic chambers. They are supplied via climate braces whereby provision is made here too for supply redundancies for the pipe installation.
The refrigeration supply for the remaining LAN rooms, electrical rooms, the office area and the ventilation systems is provided by means of an central energy management system (heating / cooling in dual operation)
The heating supply will come from the central energy management system. In the general area, the heat is discharged via radiators, in the office area provision has been made for a ceiling with integrated heating/cooling.
Provision has been made for a ventilation system for the following areas.
Ventilation system server rooms - 12,000m³/h
Ventilation system general technology - 15,500m³/h
Ventilation system office - 6,500m³/h
The storage and technology premises in the basement /first floor/upper floor will also have smoke extracted from them in the event of fire.
The drainage of the ceiling area of the office wing is performed using a low-pressure drainage system. An osmosis plant was installed for the spring water for the humidifying systems of the server heat exchangers. Filtering and UV sterilisation have also been planned for the spring water.
Measuring, control and regulation systems
Caverion supplies the entire MCR system whereby special data processing centre specifications must also be observed here in terms of the safety and functioning of the system.
Fire extinguishing systems
Server rooms, provider and IFS rooms are equipped with gas extinguishing systems. Here Provision is also made for corresponding redundancies in the total system.
Corresponding dry coolers were installed by Caverion on the roof for the exhaust heat of the five emergency power systems on the first floor
(total exhaust heat power: 6,500kW).