Evoqua WALLACE & TIERNAN S10k, Instruction Manual

Page: 34 / 104

34
WT.025.200.000.DE.IM 0517
Installation
S10k
4.
4.11 Commissioning
4.11.1 Preparation
Chlorination plants should be checked by a specialist for condition
according to the rules before beeing taken into operation. Espe-
cially the chlorine parts of the plant must be checked for leaks.
When all the connections have been made, the following pre-start
checks must be carried out before the plant can be taken into ope-
ration.
4.11.2 General check
1 Ensure the gas supply lines from the cylinders are securely
connected and that all valves in the system are closed.
2 Check that the water inlet line from the source of supply to the
injector is securely connected.
3 Ensure the safety vent line is securely connected to the
vacuum demand valve and that it terminates correctly, e.g.
outside the building.
4 Ensure the injector vacuum line is correctly fitted to the flow-
meter assembly gas outlet and to the injector.
5 Check the solution line from the injector to the point-of-applica-
tion. If the point-of-application is into a main through a corpo-
ration cock, the cock must be opened and the tube pushed in
as far as possible and secured on the bayonet fitting.
6 Check the installation of any accessories fitted. Ensure the
check valve is fitted correctly (the arrow indicates the direction
of flow); ensure a drain line is fitted to the anti-siphon valve,
terminating above a suitable drain.
4.11.3 Injector vacuum and leak check
1 Keep the valves on the chlorine cylinders closed.
2 Open the valves in the water supply line to the injector and at
the point-of-application.
Open the solenoid valve, start booster pump, if installed.
3 Adjust the injector water pressure at the reducing valve.
4 Check for leaks.
5 Switch the vacuum demand valve to „operation" .
Open the control knob at the flowmeter assembly.
The operating knob at the vacuum demand valve must go to