Mitsubishi STERAPORE 5700 Series Instruction Manual page 34

5-1-4 Confirmation Items before Installation
Conduct thorough inspections and make records when carrying out the initial membrane installation work.
Do not proceed to the module installation process until all preparations have been made.
Confirm/carry out the following.
① The membrane tank has been cleaned and foreign matter has been removed.
② All pipes and tanks including blower pipes have been flushed and cleaned.
③ The following work has been completed.
 painting
 covering
 sheet metal working
 pipe flushing
 grinding
 welding
④ Check the piping.
C AUT IO N
Check the piping before connecting modules.
Check that the piping has been constructed correctly.
 Line checking: Confirm whether piping is in accordance with the P&ID (piping and instrumentation
diagram) by comparing the piping with the P&ID.
 Leakage test: Always conduct a leakage test for suction pipes. The pipe leakage test is important as
suction pipe leaks cause mixing of suspended solids (deterioration in the turbidity of treated water)
and poor suction. Perform the test at a pressure of 100 kPa or greater. Although it is preferable to
perform the test for other pipes at the same time, these can be performed after the blower test is
completed when the system is ready to be operated.
 Pipe flushing: Flush the inside of main pipes, including suction and discharge pipes for treated water
and aeration air pipes, with water or air. Flushing is considered completed when no mixed-in waste
is found using a temporary filter or other means.
⑤ Check the wiring.
Confirm that wiring has been done correctly by checking wiring numbers on the terminal board or by
checking conduction.
Measure the insulation resistance of electric motors and other similar devices.
Measure the insulation of terminal boards to confirm that there are no earth faults.
⑥ Check the rotational direction of rotating devices.
Confirm the rotational direction of each motor individually. Confirm that each motor rotates in the
direction indicated by the arrow. For devices where the motor is difficult to detach (such as submersible
pumps), this may be done during water commissioning.
⑦ Check the sequence.
Use simulation signals to check the sequence, alarm and inter lock.
STERAPORE 5700 Series (FF) Instruction Manual
 sand blasting
 drilling
 power tool work that generates foreign matter
 wiring
 installing guide pipes
Chapter 5 Transport and Installation
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