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4. Maintenance and cleaning
Climma DC chillers require some basic maintenance that has to be done frequently and some extended
maintenance to be done at longer intervals.
4.1. Basic maintenance
Following tasks need to be performed frequently.
Clean the seawater strainer to allow enough sea water to the condenser coil
The circulation circuit (fresh water circuit) has to be filled with water and no air must be present
inside the circuit. Pressure has to be between 1.5 Bar and 2 Bar (21 psi to 28 psi).
Fancoils return air filters have to be controlled, cleaned or changed regularly.
NOTE. It's recommended that the system is regularly used. If the system is not used at least once a month,
then there can be problems with the pump seals or with the reverse cycle valve. Try to run the system at
least once a month, both in cool and in heat mode.
When the system is not run for a long period, it's important to manually run the pumps, removing the
back cover and manually rotate the cooling fan inside the pump. This will extend the life of the rotating
seal which can remain stuck by salt and break at immediate start.
IMPORTANT: Be sure to correctly fix the back cover cap correctly before running the pump at the end of
the maintenance.
4.2. Extended maintenance
Following tasks need to be performed at a semi-annual.
Flush and clean the condenser with a scale dissolving solution to prevent scale build-up in the
coils and obstructions. To do this, inlet and outlet connections have to be disconnected from the
system.
Check the sea water pump (clean the pump according to the pump model instruction )
Check every sensor of the system to be properly connected to the control box and to be properly
installed on the system.
4.3. Winterization
When the boat is subject to a very cold climate, then some anti-freeze solution has to be entered in the
fresh water circuit (circulation circuit).
Veco S
Installation Manual –Page 14 / 20
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