Goulds Pumps IC - IOM - Manual (Page 50)

Other methods of priming the pump
You can also use these methods in order to prime the pump:
• Prime by ejector
• Prime by automatic priming pump
Start the pump
CAUTION:
• Immediately observe the pressure gauges. If discharge pressure is not quickly attained, stop the driver,
reprime, and attempt to restart the pump.
• Observe the pump for vibration levels, bearing temperature, and excessive noise. If normal levels are
exceeded, shut down the pump and resolve the issue.
Before you start the pump, you must perform these tasks:
• Open the suction valve.
• Open any recirculation or cooling lines.
1. Fully close or partially open the discharge valve, depending on system conditions.
2. Start the driver.
3. Slowly open the discharge valve until the pump reaches the desired flow.
4. Immediately check the pressure gauge to ensure that the pump quickly reaches the correct discharge
pressure.
5. If the pump fails to reach the correct pressure, perform these steps:
a) Stop the driver.
b) Prime the pump again.
c) Restart the driver.
6. Monitor the pump while it is operating:
a) Check the pump for bearing temperature, excessive vibration, and noise.
b) If the pump exceeds normal levels, then shut down the pump immediately and correct the
problem.
A pump can exceed normal levels for several reasons. See Troubleshooting for information about
possible solutions to this problem.
7. Repeat steps 5 and 6 until the pump runs properly.
Limits of operation
Flow limits
These flow limits are valid unless other data is available in the curves or data sheets:
Q
min
= 0.1 x Q
BEP
Short-term operation
Q
min
= 0.3 x Q
BEP
Continuous operation
Q
max
= 1.2 x Q
BEP
Short-term operation as long as NPSH
facility
>
NPSH
pump
+ 1.64 ft (0.50 m)
Permitted number of starts
Do not start the pump more than the number of times shown in this chart:
Commissioning, Startup, Operation, and Shutdown
48 Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual