Evoqua OSEC-NXT 12-60 - Replacing Wear Parts

190 WT.085.140.000.DA.IM.0916
Maintenance by a service technician OSEC
®
-NXT 12-60
6.
Main screen
MENU
Menu selection
Manual functions
Electrolysis water On
MANUAL FUNCTIONS
10 Switch to the "Manual functions" screen and press the "Elec-
trolysis water On" button. Open the electrolysis water solenoid
valve (E2) and the water softener water inlet solenoid valve
(E5). The electrolysis water starts flowing.
11 Rinse the system for at least 30 minutes.
12 To stop the "MANUAL Electrolysis water" function again, press
the "Electrolysis water Off" button. The electrolysis water sole-
noid valve (E2) and the water softener water inlet solenoid
valve (E5) close.
13 Leave water in the anode chamber.
6.3.8 Replacing wear parts
Drain and rinse the chlorine membrane electrolysis system and
switch off at the main switch. The operating water supply and brine
supply are interrupted.
The wear parts contained in the prescribed maintenance parts
sets need to be replaced as shown in the drawings below.
Proceed as follows:
1
Replace items 1, 5, 20 and 25 first, by draining the water from the
cathode chamber and then refilling it with sodium hydroxide after
having replaced the parts. For details, see chapter 4.7.12 Emp-
tying the water-filled cathode chamber and filling with sodium
hydroxide.
2 Replace items 4, 10, 12, 13 and 27 by draining the water from the
anode chamber as described in chapter 4.7.16. It is refilled with
brine when the system is started up again. For details, see chap-
ter 6.6 Starting the system up again.
Attention!
Before replacing the o-rings on the reactor drain, item 4, drain the si-
phon via the male connector closable reactor outlet (M12).
3 The remaining wear parts can be replaced in any order.
Please note
Grease o-ring on the hose connection (A3) (item No. 16) and the o-
rings on the brine flow meter item No. 17 with silicone grease before
fitting!