AQUAPHOR APRO 1000 LPH, Manual

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10. MAINTENANCE
10.1 DOSING PUMP DEGASSING
After antiscalant replacement, it is required to perform dosing pump degassing.
Dosing head, exploded view.
1. Safety diaphragm
2. Flange
3. O-ring
4. Diaphragm
5. Valve on discharge side
6. Valve on suction side
7. Dosing head
8. Screws with discs
9. Cover
10. Deaeration valve
11. Drain opening
Start and deaerate the pump.
1. Connect mains supply. Make sure the system is turned on.
2. Open the deaeration valve by approximately half a turn.
3. DDE-B control variant: Turn the capacity adjustment knob to 100 % and wait until liquid flows out of the deaer-
ation hose continuously and without any bubbles. Then set the capacity adjustment knob back to 0,1-1 % (depend-
ing on the water quality and antiscalant type).
4. Close the deaeration valve.
The pump is deaerated.