Chapter 12: Maintenance
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44 | Installation, Operation & Maintenance Instructions EASYCHLORGEN
3.
Clean/replace the screen “2” and ensure screen is
assembled correctly back into the bonnet and tightly
secured back into the base of the PRV housing.
4.
Re-open the ball valve and start-up the system as per
section 9.2.
The PRV strainer has been successfully
cleaned/replaced.
12.1.3 PSU housekeeping
It is important that each annual inspection and service of the
EASYCHLORGEN system includes cleaning the inside of the
PSU cabinet from dust and small particles drawn in through the
air cooling fan intake.
Precondition for action:-
EASYCHLORGEN system in short-term shutdown
Perform the following working steps:-
1.
With the PSU electrically isolated, unlock and open the
cabinet door.
2.
Use a nozzle vacuum cleaner to remove dust settled on the
internal base of the cabinet and air intake grille. Carefully
vacuum dust with soft bristle attachment from any
accessible component surfaces. DO NOT vacuum the
main electrical isolation connection block.
3.
Ensure the cabinet door is locked closed after
housekeeping.
PSU housekeeping complete
12.1.4 Replace product pipe seals/gaskets
Elastomers (rubber seals) exposed to the electrolytic process
are subject to chemical wear and require routine replacement
every two years regardless of operating hours as a preventative
maintenance action.
Prior to commencing this maintenance action, the electrolytic
hydraulic circuit requires purging of residual chlorine solution.
WARNING
Increased risk of accidents due to chemical exposure!
A residual of brine/chlorine solution may drip from the pipe work
and fittings.
Wear correct personal protective equipment.
Wipe away any spillage immediately.
Precondition for action:-
Perform the long term shut down procedure; see section
11.2.
Biennial service kit available, see section 14 “Spare Parts”
•
Refer to the diagram in 12.4 for detail of seal replacement
location.
Perform the following working steps:-
1.
Drain down the product/degassing tank and associated
pipe work by closing the external product tank inlet valve
(or product isolation valve located immediately downstream
of the EASYCHLORGEN unit) and opening the product
sample point valve. Allow the solution to drain into a clean
plastic container. Empty contents carefully into the
external product tank or carefully wash away to a waste
sewer drain with copious water until the product solution is
fully drained. Close the product sample valve when drip
free.
2.
Repeat step 1 only this time draining the electrolyser cell(s)
and pipe work by opening the brine sample point valve.
Close the brine sample valve when drip free.
3.
Remove the electrolyser cell enclosure window by
removing the vertical window bead retainers and then the
horizontal window bead retainers.
4.
Commence replacing spare elastomers as detailed in
section 12.4.
5.
Carefully loosen each fitting, in-turn replacing gaskets/O-
rings with correct replacements. Apply a small amount of
silicone grease to threaded union connections to reduce
friction prior to reconnecting and securing fittings, hand
tight only.
6.
Ensure the electrolyser chamber window is refitted
correctly back into position.
7.
Perform start-up as per section 9.2.
Replacement of seals and gaskets complete
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PRV ASSEMBLY
