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6.1 Open the Covers
1) Lift the top cover gently to open it. (Refer to the pictures below)
Picture 6-1：Open the Covers 1
2) Pull the bottom of side cover outward, and lift it to open. (Refer to the pictures
below)
Picture 6-2：Open the Covers 2
6.2 Y Type Strainer
1) Clean soft water should be used as cooling water. Filter screen is used in the
strainer to stop impurities and pollutants entering into water pipe.
2) Impurities or pollutants may cause errors and bad temperature control. Clean
filter screen of the strainer periodically. Open cover under the Y type filtering
valve and clean up the inside in accordance with the chart after operations
complying with steps in the next chapter.
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