Intended Use; Permissible Usage Conditions - Pfannenberg DTS-Serie Betriebsanleitung

ENG
2 Safety
2.1

Intended use

The Pfannenberg add-on and built-in cooling units of the DTS and DTI series are stationary cooling units for heat dissipation
from switch cabinets. They are available in two versions:
• The DTI cooling units are installed partly sunken into the side or door.
• The DTS cooling units are mounted on the side or door.
WARNING
Risk of injury due to impermissible use of the units.
Improper use of units can lead to serious accidents.
• Only use cooling units in stationary operation.
The DTI/DTS-cooling units are only approved for stationary operation.
As cooling units of protection class IP 55, the cooling units are largely dust-proof.
Limitation: Dust can penetrate despite this under permanent exposure. The cooling units withstand splash water but not a
continuous water jet.
The colling units are available with different cooling capacities. For exact capacity data, see chapter "Refrigeration circuit",
Page 22.
The cooling units have a cut-out compatibility with air/air heat exchangers and air/water heat exchangers. The use of aluminum
filters, felt filters or bellows filters is possible with an additional adapter.
The cooling units are available with different unit controllers. Cooling units with a Standard Controller (SC) or a Multi-Controller
(MC) are available. These controllers are control unit for setting refrigeration functions and operating data. They also enable
readout of system messages and diagnostic data.
The Multi-Controller (MC) is additionally equipped with a Multimaster function and an energy-saving mode.
• For detailed data of the controller, see chapter "Technical data", Page 22, "Electrical connection", Page 36 and
"Operation", Page 47.
All Pfannenberg cooling units are RoHS compliant and free from:
• Silicone compounds
• PCT, asbestos, formaldehyde, cadmium
• Substances that cause wetting defects
2.1.1

Permissible usage conditions

• The permissible ambient air temperature of the DTI/DTS cooling units is +10 ... 55 °C (+50 ... 131 °F).
• The permissible storage temperature of the DTI/DTScooling units is -20 ... +70 °C (-4 ... +131 °F).
• The operation of the DTI/DTS cooling units is only permissible for stationary assembly and closed switch cabinets.
Operating Manual | Attachment and Installation Cooling Units | Standard Controller (SC) – 400 / 460 V, 3~ | 086100123 8/68