Venting The Dosing Pumps For Hcl And Naclo2; Venting The Dosing Pumps Dmx 221 - GRUNDFOS ALLDOS Oxiperm C 164 Series Operation And Service Manual

Oxiperm 164 150-2500 g en
8.5 Venting the Dosing
Pumps for HCl and
NaClO 2
8.5.1 Venting the Dosing Pumps
DMX 221
15.710010-V5.0
NOTE If the stroke setting is changed when venting, the
preset stroke length must be set again following the
venting procedure.
In the service menu/venting, you can activate the dosing pumps for the chemicals
using the "F2" key (HCl pump) and "F3" key (NaClO 2 pump).
The pumps remain switched on as long as the corresponding keys are pressed.
Output on the display e.g. "HCl pump <ON>"
Switch off the pumps by releasing the keys.
Output on the display e.g. "HCl pump <OFF>"
CAUTION! All dosing pumps must always be vented.
1
2
3
Legend:
Item 1 Venting
Item 2 Operation
Item 3 Venting hose
The overflow valve can also be opened manually, thus also serving as a venting
valve.
●
Rotate the knob such that the narrow cut-out rests on the knob of the dosing
head (item 1). The rotary knob is then further away from the dosing head,
and the valve spring is unloaded.
●
Switch on the dosing pumps using the "F2" and "F3" keys
●
Return the rotary knob to the operation position (item 2) when the dosing
medium returns without bubbles to the tank through the venting hose
(item 3).
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