Circor ALLWEILER NI Series, Original Operating Manual

Page: 20 / 44

Operation
6 Operation
For pumps in explosion-hazard areas (→ ATEX additional
instructions).
6.1 Preparations for the initial start-up
6.1.1 Identifying the pump type
Identify the pump type (→ order data sheet).
The pump types vary e.g. with regard to the shaft seal,
auxiliary systems.
6.1.2 Removing the preservative
Only necessary for pumps treated with preservative
(→ 4.4 Removing the preservative, Page 15).
6.1.3 Preparing auxiliary systems (if available)
The manufacturer does not accept any liability for damage
arising from the installation or use of a third-party or unap-
proved auxiliary system.
Sealing systems
1. Verify that the sealing medium is suitable to mix (i.e. com-
patible) with the pumped medium.
2. Identify the sealing system:
– (→ order data sheet)
– (→ 3.4.1 Sealing systems, Page 13).
3. Install the sealing system (→ manufacturer’s specifica-
tions).
4. Make sure the parameters required for the installed sealing
system are met
5. Ensure that the permissible container pressure is not
exceeded on blocking pressure systems (→ manufac-
turer’s specifications).
6.1.4 Filling and bleeding
Auxiliary systems ready for operation
NOTE
Material damage caused by dry running!
Make sure the pump is filled properly.
1. Fill the pump and the suction pipe with pumped medium.
2. Open the suction-side armature.
3. Open the pressure-side armature.
4. If present: open the auxiliary systems and check the flow
rate.
5. Verify that no pipe connections are leaking.
6.1.5 Checking the direction of rotation
NOTE
Material damage due to incorrect direction of rotation!
Make sure the direction of rotation of the motor corre-
sponds to the arrow indicating the direction of rotation on
the motor bell housing.
1. Switch the motor on and immediately off again.
2. Check whether the direction of rotation of the motor corre-
sponds to the arrow indicating the direction of rotation on
the pump.
3. If the direction of rotation is different: Swap two phases
(→ 5.5 Electrical connection, Page 19).
20 NI series BA-2021.06 en-US 550 113 – 146-900/E