3) Open the cover of control box. Screw off two butterfly screws to unlock
the cover. (Refer to the pictures below)
Butterfly screws
6.2 Y Type Strainer
6.3 Solenoid Valve
Replace solenoid valve:
1) Open machine top cover.
2) Take down right side cover.
3) Unfix the solenoid valve for replacement.
4) Install the covers in a reverse order.
Solenoid valve
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 to enter into water pipe.
2) Impurities or pollutants may cause errors and
bad temperature control. Clean filter screen of
the strainer periodically.
3) Cleaning steps: turn off power and cooling water
supply. Open the top cover of filter screen to
clean the filter.
Maintenance and Repair
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