6 Commissioning/Start-up/Shutdown
6.1 Commissioning/start-up
6.1.1
Prerequisites for commissioning/start-up
Before commissioning/starting up the pump set, make sure that the following
conditions are met:
▪
The pump set has been properly connected to the power supply and is equipped
with all protection devices.
▪
The pump has been primed with the fluid to be handled. The pump has been
vented. (
▪
After prolonged standstill of the pump (set) the pump rotor has been rotated by
means of a screwdriver to make sure the motor is not locked.
6.1.2
Priming and venting the pump
CAUTION
Increased wear due to dry running
Damage to the pump set!
▷
Never operate the pump set without liquid fill.
▷
Never close the shut-off element in the suction line and/or supply line during
pump operation.
1.
Vent the pump and suction line and prime both with the fluid to be handled.
2.
Fully open the shut-off element in the suction line.
3.
During operation (at top speed) loosen the screw plug until some air escapes.
DANGER
Hot fluid handled spurting out in the vent plug area
Risk of burns!
▷
Wear protective clothing.
4.
Close the screw plug again.
5.
Repeat this procedure several times until all air has escaped.
6.1.3
Start-up
DANGER
Non-compliance with the permissible pressure and temperature limits if the pump is
operated with the suction and discharge lines closed.
Leakage of hot fluids!
▷
Never operate the pump with the shut-off elements in the suction line and/or
discharge line closed.
▷
Only start up the pump set against a slightly or completely open discharge-side
shut-off element.
DANGER
Excessive temperatures due to insufficient lubrication of shaft seal
Damage to the pump set!
▷
Never operate the pump set without liquid fill.
▷
Prime the pump as per operating instructions.
▷
Always operate the pump within the permissible operating range.
6 Commissioning/Start-up/Shutdown
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Rio-Eco N / Rio-Eco Z N / Rio-Eco Therm N
