Operating manual ef cooling Ernst H. Furrer AG
Cooling unit EVO 45, 0390.013 Issue: 07 / 2015 Chapter-Page 8-25
8 Inspection and maintenance
8.1 Safety
Unintentional start-up of the cooling unit can result in considerable danger.
Before commencing any inspection and maintenance work, the cooling unit must be
switched off at the main switch and secured against being switched back on without
authorisation.
Non-observance of this instruction can lead to serious physical injury with fatal
Note
Proper execution of the maintenance work is prerequisite for safe and fault-free
operation.
8.1.1 Personnel qualification
This cooling unit must only be inspected and maintained by personnel who fulfil the following
requirements:
• Have read and understood Chap. 2 Safety
• Have completed basic mechanical training
8.2 Visual inspection
8.2.1 Tank and medium circuit
Check tank level –> if necessary, top up media
Check medium for fouling –> if fouled, drain and clean the medium circuit and tank, and fill with
new medium.
Check whether medium hoses are kinked –> if so, straighten them
8.2.2 Alarms on the display
Press the Alarm key on the display and check that no warnings or alarms are pending
–> For warnings or alarms: see Chap. 7.1.3 Troubleshooting at operator level
8.2.3 Air-cooled cooling units
Inflowing fresh air and outflowing exhaust air must not be restricted. Clean the air filter and
condenser if necessary.
The condenser has razor-thin aluminium fins that can cause injury.
Gloves must be worn for cleaning work on the condenser.
Non-observance of this instruction can lead to minor physical injury.
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