9
/04.2016/
G35
EN
4.2 Intended and non-intended use
Intended use
STULZ CyberRow conditioners are designed to cool rooms containing technological equipment, sheltered from
weather. Use these conditioners to eliminate the problems caused by high temperatures, dirt and humidity in the
room subject to climate control and in which the conditioners are to be installed.
As well, STULZ CyberRow conditioners cannot be used outside safety limits specified on the name-plate. Conditioners
must not be transported or used in positions that differ from those for which they were designed.
CyberRow units are designed to be installed in rows of server racks with high computing density. Cooling system
architecture is open loop, so the air conditioner takes air from a hot aisle and delivers treated air into a cold aisle. Main
functions of air treatment are: filtration, cooling, dehumidification (as a secondary effect of cooling), humidification
(with optional humidifier), and condensate pumping (with optional condensate pump). Due to the special configuration
of air supply openings, treated air doesn’t disperse in the entire cold aisle: it creates a layer on the frontal surface of
server racks, immediately available at their intake openings.
Air discharge is at both front sides of the air conditioner. Therefore the recommended position is between server
racks. If installed at the end of a row, the supply opening corresponding to the free side should be closed, to avoid
a mixing between hot and cold air, with a consequent waste of energy.
Only for CW size 2 units: by closing one lateral opening, the airflow supplied by the other opening
causes an underpressure of nearly 70 Pa at the air intake of the server rack next to the unit. For the
aspiration of cold air, the fans of this server rack must have an available static pressure of 70 Pa
minimum.
Allowed installation positions are shown in the paragraph dedicated to unit positioning.
STULZ is not responsible for any malfunctions caused by failure to comply with these instructions. The operator
bears the entire risk.
Non-intended use
The air conditioner cannot be installed on movable, vibrating, oscillating, tilted (non-levelled) parts.
Generally, the air conditioner cannot be installed in the following areas:
• with strong heat radiation
• with strong magnetic fields
• with free flames
• with fire risk
• with inflammable products
• in explosive atmosphere
• in saline atmosphere
• in aggressive atmosphere
In case of doubt, please consult the manufacturer.
