Commissioning; Inspections Before Commissioning - Grundfos DMX 24-8 Installation And Operating Instructions Manual

DMX model 226 en
5

Commissioning

5.1 Inspections before Commissioning

5.2 Commissioning
V6.0
Check the tightness of all connections. If necessary, retighten.
Check the correctness of all electrical connections.
Check if the voltage indicated on the type plate corresponds with the local
voltage!
CAUTION After initial start-up and after each diaphragm
exchange, tighten the fixing screws of the dosing
head:
After approx. 6 to 10 working hours or two
days, tighten the dosing head screws crosswise using
a torque wrench, torque 6 Nm.
Open the shut-off valves (15, 16, if installed) both at the suction and
pressure side.
Open the deaeration valve (17, if installed) of the dosing line, or remove
pressure on the pressure side so that the medium is able to issue without
counterpressure.
Switch on mains voltage.
Set the stroke length adjustment knob to 100%.
Keep the dosing pump in operation until bubble-free medium comes out of the
deaeration valve or the dosing line.
Close the deaeration valve (17, if installed).
The pump is now ready for operation.
17 16
15
21