GRUNDFOS ALLDOS Oxiperm C 164 Series Operation And Service Manual page 85

Oxiperm 164 150-2500 g en
Error
Imprecise dosing pump capacity
Alarm signal "Only manual mode
possible"
Installation is started, display indicator
"active", but does not dose or the bypass
water is not flowing
Alarm signal "HCl dosing controller" or
"NaClO2 dosing controller" or "H2O
dosing controller"
15.710010-V5.0
Cause
> The dosing head has not been
correctly deaerated
> Back pressure fluctuations
> Suction and pressure valves are dirty > Clean the valves
> "Manual Control" mode has been
selected, although the installation has
been started in Automatic mode
> Remote ON/OFF active, i.e. the
installation has been set to standby via
this contact
> Min. contact main water active, i.e. the
volume of main water is too low
> Air in the suction pipe
> No liquid in the pump calibration
system, isolation valve on the calibration
container is closed
> Diaphragm or pressure sensor in the
flow controller are defective
Remedy
> Repeat the deaeration process
> Install the pressure loading valve
downstream of the Oxiperm
> Acknowledge the error and start the
installation in manual mode
> Switch remote ON/OFF to ON
> Increase the main water volume or
deactivate the min. contact
> Deaerate the suction line and dosing
head, set the dosing pump to 100%
dosing capacity
> Open the isolation valve and
deaerate the pump
> Check the flow controller
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