Jesco C7520 Manual

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Jesco C7520 Manual Manual pdf 10 page image

Pressure chlorine changeover unit C 7520Subject to enhancing changes at any time without prior notice. 12.15BW 2 24 04 / 107 TroubleshootingProblem Possible cause RemedyThe changeover unit does not changeeven though the battery connected isempty and a full battery has beenconnected to the other side.After connecting the new chlorinetank, the RESET key in the cylindersymbol was not pressed.The RESET key in the cylinder symbol must bepressed after changing the cylinder. The LEDchanges from red to green.The voltage supply has beeninterrupted. All LEDs are off.Reactivate the voltage supply.The changeover unit changes duringnormal operation, even though thechlorine tank is still full.The maximum supply volume fromthe battery was exceeded. Possiblecauses:n Insufficient chlorine tanksconnectedn Not all tank valves were opened.n Short-term strongly increasedextraction due to shockchlorinationn Connect sufficient chlorine tanks and openthe valves.n Remove simultaneously from both tankbatteries for a shock chlorination.Switch the motors on MAN previously.The switching point on the contactpressure gauge has been adjustedincorrectly.See 3.3 "Adjusting the contact pressure gauge".The valves are not activated subsequent-ly, rather simultaneously.The jumpers in the control have notbeen connected correctly.Adjust the jumpers to the delivery state. Seechapter 2.3.5.All LEDs flash red. A motor has been switched tomanual modeSet both motors to AUTO Start a manualchangeover by pressing the key in the cylindersymbol.A cable connection between themotor and control has beeninterrupted, the position switch in themotor has been adjusted incorrectlyor a motor is defective.Check whether the plugs on the motors areloose. If you do not experience any success:inform Lutz-Jesco service.The gas warning device contact(terminal 27/28) is closed.Locate and redress the cause.The control shows an unusual illumina-tion or flashing pattern.A particular operating state is given. See tables in chapter 2.3.3.Table 9: Troubleshooting

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