Wilo PBI-L203MA, Installation, Operation And Maintenance Manual

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- The pressure in the tank must not exceed the rated maximum.
- Regularly check pre-charged gas pressure in the pressure tank.
When checking the pressure, stop the pump and drain the tank. Otherwise the pre-charged gas pressure
cannot be accurately measured.
- Check the pre-charged gas pressure every six months when using proper tank. When refilling the tank,
follow the instructions below:
Completely drain the tank and open the cap. Refill the tank with an injector or a compressor.
The injected pressure should be 90% of operating pressure or lower by 0.5 kgf/cm
2
than the pressure.
If it is difficult to drain the tank, stop the pump and start refilling the pressure when pre-charged gas pressure
is far less than needed.
- If the refilled pressure is much lower than operating pressure, the pressure tank may work abnormally.
- If the refilled pressure is much higher than operating pressure, the pump may shutdown and restart frequently.
The timetable below shows how often a part should be replaced.
The wiring and setting of the inverter is already finished before delivery.
Never change any setting except data related to the operation.
The inverter is a semiconductor device that can be damaged by ambient temperature, humidity, and vibration.
To prevent malfunctions, pay attention to following:
①
If there is any problem in wiring connections
②
If there is abnormal vibrations or noise
③
If there is overheating, discoloration, or abnormal smell
- To prerent destruction of IC components, do not preform a voltage test or insulation resistance(mega test).
- The electronic circuit is embedded in the inverter, so any contact with the inverter may cause static electricity
that can damage parts of the inverter.
Never touch the electronic circuit when repairing and checking the inverter. Otherwise use a ground
connection and earth Chassis when touching it.
- If the bolts and nuts are loosened or rusted, disconnect the power supply, and tighten or replace them.
- If there is a connection defect in the electromagnetic switch or abnormal noise, replace the part.
What to replace How often replace Whenever
Every one year it leaks
-
it is checked
Every three years abnormal noise occurs.
Every three years
discrepancy between pressure values
occurs, or value is uncertain.
Every three years operation is not certain.
Every three years
connection is critically damaged
or malfunction occurs.
Every three years operation is not certain.
Mechanical seal
O-ring/ Casket
Motor bearing
Input transmitter
Pressure tank
Relays
PCBs
Pump/ Motor
Machinery
Control
panel
NOTE: The timetable is based on the assumption that
after startup, the unit has been operated at
rated load. So the schedule can be adjusted in
accordance with circumstance and operating
conditions.
Disposal of PCB or electronic parts must be carried
out in accordance with related laws and regulations.
This product includes PCB, so never dispose it in a
general waste collection.
운반·설치상의 주의사항
MAINTENANCE
Refilling Pressure Tank
Maintenance time table
WARNING!
WARNING!
Checking Inverter
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