Starting Flushing; Working With The System After Flushing; Manually Venting The Dosing Pump - Grundfos Oxiperm Pro OCD-162 Instrucciones De Instalación Y Programación

9.5.3 Starting flushing

1. Menu > Service > Process > Flushing
flushing
Put suct. lance into water
[OK]
2. Press [OK], if the suction lances are in the water.
flushing
Drain int. batch tank [OK]
3. Press [OK], if the batch tank is empty, see
section
9.5.2 Manually draining the batch
flushing
Close drain cock [OK]
4. Press [OK], if the drain cock is closed.
5. Flushing starts. The flushing process automatically runs twice.
6. Flushing process:
– Dilution water is filled up in the reaction tank until the level
reaches K1.
– The hydrochloric acid pump runs for two minutes.
– The sodium chlorite pump runs for two minutes.
– Dilution water is filled up in the reaction tank until the level
reaches K4, and it overflows into the batch tank.
The following message is displayed:
flushing
System flushing is running
At the end of flushing, the following message is displayed:
flushing
please wait!
7. If the reaction tank is empty, the flushing process is repeated.
After two flushing processes, the following message is
displayed:
flushing
System flushing is finished
[Esc]
8. Confirm with [Esc].

9.5.4 Working with the system after flushing

1. Remove the hose from the drain cock, and place it in the
bucket.
2. Pour the contents of the bucket down the drain.
3. Clean the hose and bucket, and drain thoroughly with water.
4. Unscrew the original cover of the sodium chlorite container.
5. Remove the sodium chlorite suction lance from the bucket of
water, and insert it in the sodium chlorite container. Screw the
suction lance cap onto the container. Retain the original cover.
6. Unscrew the original screw cover of the hydrochloric acid
container.
7. Remove the hydrochloric acid suction lance from the bucket of
water, and insert it in the hydrochloric acid container.
Screw the suction lance cap onto the container. Retain the
original cover.
8. Fit the cover back on the Oxiperm Pro.
9.5.5 Terminating flushing
The flushing process can be terminated any time using the [Esc]
key.
9.5.6 Responding to flushing faults
It can take five minutes to rinse the pumps. If the following error
message appears after five minutes, proceed as follows:
flushing
flushing error
1. Call Service. There may be a problem with the pumps.
2. Once the fault has been removed, press [Esc] or [OK] to
tank.
confirm.
3. Restart flushing.

9.6 Manually venting the dosing pump

Note
Note
Conditions for venting:
• The batch tank must contain chlorine dioxide solution.
• The dosing pump must be operated in "manual" mode.
If the dosing pump is running:
1. Hold the green knob and the black knob on the multi-function
valve. Turn the green knob slightly clockwise as far as the
stop (the movement is barely noticeable). For details, see
installation and operating instructions for the multi-function
valve.
2. Repeat the procedure, if necessary.
The dosing pump is vented.
Turning the knob opens the back pressure valve at the
multi-function valve to the overflow line. The chlorine dioxide
solution, possibly containing air bubbles, flows back to the batch
tank.
Warning
Risk of damage to equipment and personal injury
due to incorrect handling of chemicals.
Before commencing work, put on personal
protective equipment.
The dosing pump can be vented manually with
the multi-function valve.
Only actuate the green knob on the
multi-function valve when the dosing pump is
running.
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