Yamato Scientific WS220 Water Purifiers - Manual (Page 19)

15
Maintenance Method
Daily Inspection and Maintenance
For the safety use of this unit, please perform the daily inspection and maintenance without fail.
Since this unit distills the city water directly, scale is deposited in the boiler extremely. Therefore,
maintenance and checks are mainly planned to remove such boiler scale.
Reference for maintenance
Maintenance/check items Reference for timing Remarks
Washing Distiller 3 months
Washing water supply hose
filter
6 months
Wash the distiller more often in
case the quality of raw water is
not good.
Replacement of hoses 2 years
Connections shall be checked
once per month.
Replacement of flow washers
If the amount of cooling water
decreases and if steam comes
out from the condenser or float
tube.
The flow washer (rubber) in the
fixed flow rate valve deteriorates
in about 2 years. In such a case,
ask for services.
WARNING!
• Disconnect the power cable from the power source when doing an inspection or maintenance
unless needed.
• Perform the daily inspection and maintenance after returning the temperature of this unit to the
normal one.
• Do not disassemble this unit.
CAUTION!
Main unit maintenance
• Use a well-drained soft cloth to wipe dirt on this
unit. Do not use benzene, thinner or cleanser for
wiping. Do not scrub this unit. Deformation,
deterioration or color change may result in.
Monthly maintenance
• Check the earth leakage breaker function.
1. Connect the power cord.
2. Turn the breaker on.
3. Push the red test switch by a ballpoint pen etc.
4. If there is no problem, the earth leakage breaker will be turned off.
For any questions, contact the dealer who you purchased this unit from, or the nearest sales
division in our company.