Technical Notice V1.0 / 01.09 Page 71 / 100
Tuning and maintenance 11
11.2 Maintenance
11.2.1 Periodic maintenance
Regular maintenance by competent personnel makes it possible to ensure reliable and efficient opera-
tion of the refrigeration unit.
11.2.2 Safety
ELECTROCUTION ET BLESSURES GRAVES
Always disconnect the power supply of the unit before any maintenance operation.
There is a significant risk of burns from contact with the copper piping.
11.2.3 Maintenance table
11.2.4 Weekly maintenance
A. Check that the liquid is at the maximum level of the visual indicator.
An electrical level detector can be installed as an option.
B. Restart the unit by switching it off and back on again.
11.2.5 Monthly maintenance
A. Check for fouling of the air condenser
B. If necessary, blow compressed air through the exhaust fan from the outlet port of the exhaust fan.
C. Restart the unit by switching it back on.
Interval Weekly Monthly Annually
Liquid level
X
Check for fouling of the air condenser X
Check the bearing clearances of the
exhaust fan motor
X
Clean the exhaust fan blades X
Check the refrigerating and hydraulic
circuits
X
Table 11-2: Maintenance table
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