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9. Cleaning
9.1. Air filter mat
To maintain high performance the optional air filter mat (3.19 Air filter mat) must be checked for
contamination at least once a month. The correct air filter mats can be ordered at any time as an
original spare part – please contact our KKT chillers Service Team (Table 1 Contact details).
9.2. Condenser
To maintain high performance the microchannel heat exchanger must be cleaned if there is any
visible contamination, but at least annually. To do this, disconnect the unit from the power supply
and remove the service panels and the condenser protective grille (panels 3 and 5, see Chapter
1.3 Elements). First of all, remove coarse dirt particles from the outside using a standard vacuum
cleaner. Then flush the microchannel heat exchanger carefully, in the opposite direction to the air
flow, from inside with warm tap water. Then clean with a wet vacuum cleaner until the surface is
dry again. For versions with water cooled condensers see complete cleaning of the cold water
circuit.
9.3. Water filter
To ensure the required water quality and the required water circulation quantity, the optional
water filter (3.22 Filter assembly group coolant ) must be checked for contamination at least
once a month. The correct filter unit can be ordered at any time as an original spare part – please
contact our KKT chillers Service Team (Table 1 Contact details).
9.4. Complete cleaning of the cold water circuit
Due to the complexity and diversity of the possible external materials, we recommend that the
complete cleaning of the cold water circuit only be carried out by qualified personnel – please
contact our KKT chillers Service Team (Table 1 Contact details).
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