Grundfos DDI 209, Инструкция по установке и эксплуатации

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7.1.4 Assisting suction for systems without Plus
3
system
At the dry suction/discharge valves:
1. Remove the suction line.
2. Hold a small container of water directly next to
the suction valve and draw water until the dosing
head is full.
3. Reinsert the suction line.
7.1.5 Starting the pump
1. Open the suction and discharge isolating valves,
if installed.
2. Open the deaeration valve of the dosing head by
approximately 1 turn.
3. Let the pump run in continuous operation:
– Switch on the power supply.
– Press the "Start/Stop" button and keep it
pressed.
– The pump switches to continuous operation at
maximum stroke frequency.
4. Leave the pump running until the dosed medium
is free of air bubbles and, for the Plus
3
system,
until the calibration tube is full.
– Leave the pump DDI 0.4-10 running in
continuous operation for approximately 5 min.
5. Carefully close the deaeration valve.
– The pump is now ready for operation.
7.1.6 After initial start-up of pumps with Plus
3
system
• After initial start-up, remove the adhesive label
(M) from the cover (L), see figs 3 and 29.
Fig. 29 Adhesive label
7.1.7 Tightening dosing head screws
7.2 Operating the pump
7.3 Shutdown
7.3.1 Switching off / uninstalling
1. Switch off the pump and disconnect it from the
power supply.
2. Depressurise the system.
3. Take suitable steps to ensure that the returning
dosing medium is safely collected.
4. Carefully remove all lines.
5. Uninstall the pump.
7.3.2 Cleaning
1. Rinse all parts that have come into contact with
the medium very carefully:
– lines
– valves
– dosing head
– diaphragm.
2. Remove any trace of chemicals from the pump
housing.
7.3.3 Storage
Storage of the pump:
1. After cleaning (see above), carefully dry all parts
and reinstall the dosing head and valves, or
2. change the valves and diaphragm.
See section
10. Maintenance .
7.3.4 Disposal
Disposal of the pump:
•
After cleaning (see above), dispose of the pump
in accordance with the relevant regulations.
TM
0
3
6
247
4
506
Caution
After initial start-up and after each time
the diaphragm is changed, tighten the
dosing head screws.
After approximately 6-10 operating
hours or two days, cross-tighten the
dosing head screws using a torque
wrench.
Maximum torque:
DDI 0.4 - DDI 5.5: 2.1 Nm.
DDI 13.8 - DDI 20: 2.5 Nm.
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Note
To operate the pump, see sections
8. Operation and 10. Maintenance and,
if necessary, section 11. Fault finding
chart.
Warning
Risk of chemical burns!
Wear protective clothing (gloves and
goggles) when working on the dosing
head, connections or lines!
Do not allow any chemicals to leak
from the pump. Collect and dispose of
all chemicals correctly!
Note
If possible, rinse the dosing head
before shutting down the pump, e.g.
by supplying it with water.