6.7 Temperature protection
Description
The scroll element is protected by a temperature switch.
The switch monitors the temperature of the compressor element.
The switch shuts down the compressor in case of overheating. After cooling down, the switch
automatically resets itself.
No adjustment is possible.
• When the compressor is stopped due to overheating, be aware that the
compressor will restart automatically after cooling down. Therefore, always
switch off the power before starting maintenance or repair activities.
• Never run the compressor without temperature switch.
6.8 Cleaning the compressor element
• Compressor element cooling channels can be hot when the compressor has just
been turned off.
• Do not clean the cooling channels with organic solvent since this will damage the
surface treatment.
The purpose of cleaning the cooling channels of a scroll element is to prevent the cooling channels to silt
up and as such reduce the cooling efficiency. A reduced cooling efficiency can lead towards a premature
compressor element failure.
Procedure:
1. Stop the compressor and switch off the power.
2. Close the air outlet valve and depressurise the compressor.
3. Remove the fan duct:
• Unscrew the 3 bolts (1).
• Remove clip (2) (if applicable).
• Remove fan duct (3).
4. Clean cooling channels:
• Remove dust from the cooling channels (1) by means of air jet (see next figure).
• Clean the fan duct (2).
Instruction book
2920 7110 11 35
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