Lubrication requirements, Prime the pump, Start the pump – Xylem P2000799B Series e-90 Close-Coupled In-Line Centrifugal Pumps User Manual

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Pump rotation is clockwise when viewed from the back of the motor. An arrow is
provided to show rotational direction.

3. Lock out power to the driver.

Lubrication requirements

These pumps are permanently lubricated.

Prime the pump

CAUTION:
Do not run the pump dry.

Make sure that the pump body is full of liquid before startup. If the system does not
automatically fill the pump body with liquid, then you must manually prime the pump.
1. Loosen the vent plugs on the pump body.
2. While venting the air from the pump body, rotate the pump shaft a few times by hand.
3. After all air has been purged from the pump, close the vent plugs.

Start the pump

WARNING:
Pressurize the pump body slowly while you check for leaks at all joints with gaskets.
Failure to follow these instructions can result in serious personal injury and/or property
damage.

CAUTION:

• 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 motor.
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 motor.
b) Restart the motor.

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.

7. Repeat steps 5 and 6 until the pump runs properly.

Commissioning, Startup, Operation, and Shutdown

Series e-90 Close-Coupled In-Line Centrifugal Pumps Installation, Operation, and Maintenance Manual