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6.1.5 Commissioning/start-up of pressure booster system
NOTE
Prior to its delivery, the pressure booster system will be tested hydraulically
with water and then drained again. For technical reasons the presence of some
residual water is unavoidable.
Prior to commissioning/start-up observe EN 806. After prolonged standstill
periods, flushing or professional disinfection is recommended. For extensive or
branched piping systems, flushing the pressure booster system can be
restricted to a limited area.
CAUTION
Foreign matter in the piping
Damage to the pump / pressure booster system!
Ø
Before commissioning/starting up or functional check running the pressure
booster system, make sure that there is no foreign matter in the pressure
booster system or piping.
NOTE
Commissioning of the pressure booster system - even test running - shall only
be carried out in full compliance with all pertinent VDE (German Association of
Electrical Engineers) regulations.
CAUTION
Operation without the fluid to be handled
Damage to the pump sets!
Ø
Prime the pressure booster system with the fluid to be handled.
ü
The pipe unions between the pump and the piping have been re-tightened.
ü
The flange bolting has been checked for firm seating.
ü
The cooling air inlet and outlet openings on the motor are unobstructed.
ü
All shut-off valves of the pressure booster system are open.
ü
The pre-charge pressure of the membrane-type accumulator has been checked.
[
1. Set the master switch to "0"; unlock all motor protection switches (if applicable).
2. Provide connection to power supply.
3. Open/loosen the vent plugs on the pumps (refer to the pump's installation/operating
manual).
4. Slowly open the inlet-side shut-off element and prime the pressure booster system until
the fluid to be handled escapes through all vent holes.
5. Insert and slightly tighten the pump vent plugs.
6. Switch on all motor protection switches.
7. Switch on the master switch.
8. Start one pump after the other in manual mode, checking the direction of rotation. The
direction of rotation must match the rotation arrow on the motor. If the pump runs in the
wrong direction of rotation, interchange two phases at the motor terminal strip.
9. Open the discharge-side shut-off element.
10.Then re-tighten the vent plug firmly.
11.Check that the pumps are running smoothly.
12.Close the discharge-side shut-off element, causing all pumps to stop.
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