Flushing; Calibration Of Conductivity - Dometic RO400 Service Manual

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26. Press down the pump/membrane assembly into the
vessel so that the three sections of locking rings can
be put in place (10).
27. With the locking rings in place, pull up the assem-
bly to the top and rotate the three locking pieces to
secure the brass gable in its correct position (4a).
Tighten the screws.
28. If the pump service kit is replaced, move the remain-
ing components from the old brass gable to the new.
29. Install the flush valve on the brass gable.
30. Connect the hose from the filter containers (
31. Install the purified water outlet in the casing.
32. connect the hoses (
ing valve. Make sure that the conductivity sensor is
directed downwards (19).
33. Reinstall the motor assembly, see "
", point 11-17.
TOR
34. Reconnect the hoses on the backside of the product:
the inlet-, reject- and purified water hose.
35. Open the inlet water supply to the product.
36. The completion of the replacement differs if the
membrane and/or pump has been replaced.
Completion replacing the membrane service kit:
a) follow the instructions for
the membrane from chemicals.
b) follow the instructions for
ConDuCTiviTy
tion levels'.
c) During the procedures, check for leakages.
d) Put back the top cover.
Completion replacing the membrane service kit:
a) connect to electricity and the product will start to
flush.
b) check for leakages.
c) Put back the top cover.
It is recommended to control performance.
The form 'Data collection at service' found under
"
seRviCe ReCoRDs
evant for performance.

flusHing

Flushing is performed when the water purifier:
• Is new and has never been used before.
• Is reinstalled after storage.
• has been cleaned, in order to rinse out chemicals.
• has been supplied with a new membrane.
CAUTION
purified water may not be used while flushing is in progress.
first check that:
• The purified water hose is disconnected from any equipment /
machine/tank and routed to the reject water outlet.
• The inlet water supply to the product is open.
seRViCe
3).
1)(5) to the pressure regulat-
chANgINg MO-
" " to clean
flushinG
"
CaliBRaTion of
" to set the values for 'purifica-
" gives the parameters rel-
1. Disconnect the water purifier from electricity.
2. Connect to electricity and the product will flush.
3. flush the product two (2) more times by disconnect-
ing and reconnecting electricity.
New installation or membrane replacement
4. a)
follow the instructions for "
DUcTIVITY
b) Just flushing
Allow the appliance to produce purified water to the
drain for at least 10 minutes, then disconnect electri-
cal supply.
Connect the purified water hose to the application.
Flushing is now completed.

CaliBRatiOn Of COnduCtiVity

calibration may only be performed if:
• The water purifier is new and has never been used before.
• The incoming water quality changes for some reason, such as
moving the water purifier.
• Membrane replacement has recently been carried out.
• After changing the PcB (circuit board).
• After changing the conductivity sensor.
purified water may not be used while calibration is in progress.
Calibration of the water purifier is done after completed flush-
ing according to
flUShINg,
1. Start the pure water production.Within 10 seconds,
you must press and hold the 'calibration' button.
2. Keep the button pressed until the diods for 'purifica-
tion level I and II' light up for a second and then go
out. When only the 'on/off' diod is lit, the button can
be released.
3. Let the product operate and produce purified water
for at least 10 minutes.
4. After approx 10 minutes will the diods for 'purifica-
tion levels I and II' flash once. Then, water quality
level is shown by the diod for 'purification level III',
indicating maximum degree of purity.
5. Close the pure water operation, let the product flush.
6. Disconnect electrical supply.
7. Connect the purified water hose to the application.
8. Reconnect electrical supply.
If the diods for 'purification level I-III' flash sequen-
tially, calibration has not been carried out properly.
If so, restart from the beginning.
Calibration is now competed.
it is recommended to control purification effi-
ciency when the calibration is performed. Easiest
is to compare conductivity on purified water with
reject water.
The form 'Data collection at service' found under
"
seRviCe ReCoRDs
evant for general performance.
- 40 -
cAlIBRATION Of cON-
"
CAUTION
step 1-3.
" gives the parameters rel-