✓
The cooling air inlet and outlet openings on the motor are unobstructed.
✓
All shut-off valves of the pressure booster system are open.
✓
The pre-charge pressure of the membrane-type accumulator has been checked.
(
1. Set master switch to "0".
2. Provide connection to power supply.
3. Open/loosen the vent plug on the pump (refer to the pump's installation and
operating instructions).
4. Slowly open the inlet-side shut-off element and prime the pressure booster
system until the fluid to be handled escapes through the vent hole.
5. Close and slightly tighten the vent plug.
6. Switch on the master switch.
7. Open the discharge-side shut-off element.
8. Loosen the vent plug again to let any remaining air escape.
9. Then re-tighten the vent plug firmly.
10. Verify that the pump is running smoothly.
11. Close the discharge-side shut-off element for a short period in order to verify
that the pump reaches the shut-off head.
12. Close the discharge-side shut-off element, causing the pump to stop.
NOTE
Minor leakage of the mechanical seals during commissioning is normal and will cease
after a short period of operation.
7.2
Switching on the pressure booster system
Switch on the master switch to energise the pressure booster system. The green LED
on the control panel indicates the system's readiness for operation.
NOTE
The pressure booster system is factory-set to the operating data indicated on the name
plate.
7.3
Check list for commissioning/start-up
Table 10: Check list
Operations
Done
1
Read the operating instructions.
2
Check power supply and compare against the name plate data.
3
Check the earthing system (by measuring).
4
Check the mechanical connection to the water mains.
Re-tighten the flange bolting and pipe unions.
5
Prime and vent the pressure booster system from the inlet side.
6
Check inlet pressure.
7
Check whether all cables are still firmly connected to the terminals inside the control unit.
8
Check the setpoint, re-adjust if necessary.
9
Test the proper function of the lack-of-water and dry running protection equipment. If not
fitted, make a relevant note in the commissioning report.
10
Vent the pump for a second time after it has been running for 5 to 10 minutes.
11
Check the pre-charge pressure.
7 Commissioning/Start-up/Shutdown
Hya®-Solo DV
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