Safety Concept; Safety Devices - Pfannenberg DTT 6301 Serie Manual De Instrucciones

ENG
3.4.7

Safety concept

WARNING
Risk of injury due to modified safety devices.
Non-functional, modified or defective safety devices lead to serious accidents.
• All modifications to the unit and especially the safety devices are prohibited.
• In case of defective safety devices, shut down the unit immediately and take it out of operation.
3.4.7.1

Safety devices

• The cooling units have a tested pressure switch in accordance with EN 12263. The pressure switch reacts to a pressure
increase in the refrigeration circuit by switching off automatically.
• The fans and compressors are protected against overloading and overheating. For example, the compressor is protected
against overspeeding.
3.4.7.2 Additional protection function
Only cooling units with antifreeze option.
• The compressors and fans switch off if there is a danger of freezing.
• The unit must be restarted to exit this switch-off function.
Operating Manual | Roof-mounted Cooling Unit | Multi Controller (MC) – 400 / 460 V, 3~ | 086100033c 20/21