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57
WTC 600 LP / MP MAINTENANCE
Service Handbook 08.2004
4.5.2 Malfunction Indication at the Operating Panel
The control system detects operational malfunctions only while in operation operating mode;
these are indicated on the display. The occurrence of an error usually leads to the complete
system being switched off (production is interrupted).
Indication Malfunction Cause Corrective Action Chap./
Fig.
Motor/ Metering containe Fill up 3.2
hard water empty
Lack of pressure PI station gene- No water Establish the flow of
rates no pressure available untreated water again
Air in the pump Bleed the pump; connect
pump directly in canal,
run for 30 sec.
Suction height too Ensure supply pressure
high, pump is not to the pump (mains
self-priming supply, submerged
pump, ... )
Supply pressure of Flow rate through see 4.5.4
the reverse preliminary filter
osmosis too low too low
Differential Filter soiled Replace filter cartridge 4.1
pressure of the
preliminary filter
>>1 bar
Pressure switch Replace pressure 2.2,
defective switch (pay attention to Pos. 4.9
setting)
Flow rate in sand Filter clogged Initiate backwashing 3.4.2
filter too low
Conductance Permeate Yield too high Increase flow of 3.4.3.7
value conductance value concentrate
exceeded too high
Very high salt Check cause;
1)
content in notify sales dept.
untreated water
Defective seal or Replace parts; switch off ETL
membrane system, if required
Conductance Calibrate again; ETL, SLP
value probe replace if required
defective
Table 29
1)
See untreated water analysis, operational start-up record