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8. MAINTENANCE AND PERIODIC CHECKS
8. MAINTENANCE AND PERIODIC CHECKS
8. MAINTENANCE AND PERIODIC CHECKS
8. MAINTENANCE AND PERIODIC CHECKS
8. MAINTENANCE AND PERIODIC CHECKS
8.1 WARNINGS
8.1 WARNINGS
8.1 WARNINGS
8.1 WARNINGS
8.1 WARNINGS
The aluminium fins on the fined coil are SHARP. Take the appropriate
The aluminium fins on the fined coil are SHARP. Take the appropriate
The aluminium fins on the fined coil are SHARP. Take the appropriate
The aluminium fins on the fined coil are SHARP. Take the appropriate
The aluminium fins on the fined coil are SHARP. Take the appropriate
precautions when working near to them.
precautions when working near to them.
precautions when working near to them.
precautions when working near to them.
precautions when working near to them.
The operations described in this chapter must be carried out by QUALIFIED
The operations described in this chapter must be carried out by QUALIFIED
The operations described in this chapter must be carried out by QUALIFIED
The operations described in this chapter must be carried out by QUALIFIED
The operations described in this chapter must be carried out by QUALIFIED
PERSONNEL ONLY.
PERSONNEL ONLY.
PERSONNEL ONLY.
PERSONNEL ONLY.
PERSONNEL ONLY.
DISCONNECT THE POWER SUPPLY before working on the unit or its internal
DISCONNECT THE POWER SUPPLY before working on the unit or its internal
DISCONNECT THE POWER SUPPLY before working on the unit or its internal
DISCONNECT THE POWER SUPPLY before working on the unit or its internal
DISCONNECT THE POWER SUPPLY before working on the unit or its internal
components.
components.
components.
components.
components.
The compressor heads and delivery pipes are HOT. Take the appropriate
The compressor heads and delivery pipes are HOT. Take the appropriate
The compressor heads and delivery pipes are HOT. Take the appropriate
The compressor heads and delivery pipes are HOT. Take the appropriate
The compressor heads and delivery pipes are HOT. Take the appropriate
precautions when working near to them.
precautions when working near to them.
precautions when working near to them.
precautions when working near to them.
precautions when working near to them.
8.2 GENERAL
8.2 GENERAL
8.2 GENERAL
8.2 GENERAL
8.2 GENERAL
Periodically check the unit’s operation as follows:
CHECK PERIOD
Check the control and safety devices as described above.
monthly
Check that the terminal clamps in the electrical cabinet and the compressor terminal
boxes are fully tightened down. Clean all fixed and mobile contactor contacts and
replace if necessary.
monthly
Check the oil charge through the sight glass.
monthly
Check the compressor for leaks.
monthly
Check the water circuit for leaks.
monthly
In case of lengthy shut down, drain the water circuit pipes and the heat exchanger.
This is particularly important if the ambient temperature is expected to drop below the
freezing point of the mixture in the circuit.
seasonal
Check the water charge in the water circuit.
monthly
Check the flow switch.
monthly
Check the compressor casing heaters.
monthly
Clean the strainers fitted in the water circuit pipes.
monthly
Blow compressed air through the finned coils and filters (if fitted) in the reverse
direction to normal air flow. If they are completely blocked clean with a water jet.
monthly
Run a trial defrost cycle.
monthly
Check the condition, mounting and balance of the fans.
4 months
Check the refrigerant circuit for humidity via the sight glass indicator (green = dry,
yellow = humidity); if the indicator is not green (see sticker), replace the filter.
4 months
Check the unit’s operating sound level.
4 months
Summary of Contents for KAPPA V 2001
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