Blue Box KAPPA V SR, Installation, Operating And Maintenance Manual

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Blue Box 50
Adopt the maximum caution when working in the vicinity of the finned
coils because of the sharp edges of the aluminium fins.
The compressor’s oil separator and discharge line can reach high
temperatures. Always exert caution when working in the vicinity of the
compressor.
Make sure that the unit has been disconnected from the power supply
before carrying out any work or accessing internal parts.
All operations described in this chapter MUST BE PERFORMED
EXCLUSIVELY BY QUALIFIED PERSONNEL.
8. MAINTENANCE AND PERIODIC CHECKS
8.1 WARNINGS
8.2 INTRODUCTION
Carry out the following periodic checks to ensure the unit is operating correctly:
CHECK PERIOD
Check that safety and control devices work correctly as previously described monthly
Check that all the terminals within the electric panel and compressor are tight The
sliding terminals of the contactors should be periodically cleaned: if any damage is
found, replace the contactors
monthly
Check the sight glass to verify the refrigerant charge. monthly
Check that there is no oil leakage from the compressor monthly
Check that there is no water leakage in the hydraulic system monthly
If the unit is to be stopped for a long period the hydraulic circuit, including all pipes and
heat exchangers, should be drained. This is compulsory if the ambient temperature is
expected to fall below the freezing point of the liquid employed.
seasonal
operation
Check process water levels monthly
Check that the flow switch is operating correctly. monthly
Check that the crankcase heater is operating correctly and there is a power supply. monthly
Clean metallic filters on water piping monthly
Clean the finned coil or the filter coils, if present, by means of compressed air, which
should be directed in the opposite direction to the normal direction of air flow. If the
coil is completely clogged clean with a jet of water. monthly
Execute a defrost test (heat pump units only) monthly
Check the condition, anchorage, and balancing of fans every 4 months
Check the colour of the sight glass core (green = no moisture, yellow = moisture
present): if it is yellow change the refrigerant filter every 4 months
Check that the noise level has not increased. every 4 months