Pfannenberg PWS 6502 Serie Manuel D'utilisation page 61

GB
5.3 Maintenance
DANGER
Life-threatening danger due to electric shock
Live units and exposed connection cables can generate an electric shock and cause severe accidents.
➢ Opening, troubleshooting and replacement of components on the unit must only be carried out by qualified
personnel.
➢ Always ensure that the unit is de-energized before working on the unit.
WARNING
Danger due to improper maintenance work
Damage of components and faulty replacement of components can cause accidents.
➢ Always switch off the disconnector/contactor before beginning with maintenance work.
➢ Ensure that the fans are in idle position and no longer rotate.
➢ After replacement of defective parts or components, inspect the unit for correct and safe operation.
➢ After all maintenance or replacement of spare parts, check to ensure the full capability of the condensate
drain.
WARNING
Spare parts from third-party manufacturers can damage the unit and cause accidents.
➢ Only original parts are subject to the manufacturer's quality control.
➢ Only use specially harmonized manufacturer parts for safe and reliable operation.
 For Pfannenberg spare part numbers, see
NOTE
Danger of unit damage due to incorrectly performed maintenance
Disregard of the recommended maintenance work reduces the cooling capacity of the air/ water heat
exchanger and can result in reduced machine availability.
➢ Maintenance work must be carried out regularly, as specified in the maintenance checklist.
➢ Warranty claims are only valid for units that have been maintained according to specifications.
The refrigerant circuit is a maintenance-free, hermetically sealed system. The following preparations
are made at the factory:
• All air/water heat exchanger seals are tested in the factory in accordance with: DGUV-R 100-500, 2.35
(operation of refrigeration plants, heat pumps,and cooling equipment).
• A functional test run was carried out.
Pfannenberg recommendation to the operator for maintenance work:
• Carry out maintenance work regularly, every 12 months, according to the maintenance checklist; see the
template Maintenance checklist
• Shorter maintenance intervals are required for air/ water heat exchangers that cool in oil and dust-laden ambient
air. A reduced guideline value of two to six months between maintenance intervals applies.
 The functions of Pfannenberg filters are optimally matched to the air/ water heat exchangers. Therefore, use of
Pfannenberg filters has a positive effect on the scope of maintenance work.
Operating manual PWS and PWI 6502 785408476 © Pfannenberg GmbH
Spare part orders.
template.
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