Method Statement Title: Testing & Commissioning of Domestic Water Pumps
Scope
The scope of this Method Statement is to define the method of Testing and Commissioning of Domestic Water Pumps installed within the Burj Dubai – The Residences, in accordance with the manufacturer’s instructions attached.
Note
a. For installation of Domestic Water Pumps refer to Method Statement Ref. ETA/MS/P-006.
2.0 Material
Refer to Appendix 1 – Schedule of Domestic Water Pumps.
3.0 Test Equipment
- Digital Multimeter
3.2 Clamp Meter
Note
The calibration certificates of testing instruments shall be verified prior to usage and copies shall be included in the test reports.
4.0 Pre-commissioning checks prior to start-up
4.1 Mechanical
4.1.1 Check and inspect the installation of Domestic Water Pumps is complete, verify the installation as per approved drawings.
4.1.2 Verify compliance to the attached manufacturer’s installation instructions.
- Obtain installation certification from manufacturer or their authorized representative.
4.1.4 Check and ensure adequate clearance available for service and maintenance of pumps and motors.
4.1.5 Check the installation is coordinated with other services.
4.1.6 Ensure the shipping bolts / chambers are removed.
- Check all nuts, bolts, screws, fasteners etc., are fixed and tightened as required.
- Ensure the piping is pressure tested. Verify test certificates.
- Check all piping connections are complete at pumps, flow meter and pressure relief line including flexible connections where applicable.
- Check and ensure the piping is flushed and cleaned.
- Check the alignment is completed as per manufacturer’s instructions.
- Check and verify the water level in the water tank is full.
- Check and ensure safety guards are in place and secure.
- Adjust desired cut-in and cut off pressure as pre requirements.
- Rotate the pump manually and ensure free and smooth rotation.
- Ensure the pumps are cleaned prior to start up and all identification labels and tags are in place.
4.2 Electrical
4.2.1 Check all power cabling and control wiring is completed and dressed neatly.
4.2.2 Check the power isolator is fixed close to the pump motor for emergency stop and power isolation, as per approved drawings/details.
4.2.3 Check all terminations are completed and tightened as required.
4.2.4 Check the grounding connections are completed and tightened as required.
4.2.5 Ensure the overload protections are set correctly as per the pump motor load current.
4.2.6 Ensure all identification tags and labeling works are complete.
5.0 Start-up and Testing
- Refer enclosed procedure.
6.0 Safety
6.1 Only experienced and skilled personnel shall be engaged for start-up and commissioning of domestic water pumps.
6.2 Safety guards shall be in place and secured prior to start-up.
6.3 Cable test reports shall be verified prior to energisation.
6.4 Warning signs and tapes shall be placed during start-up and commissioning as required.
6.5 All safety procedures shall be followed in accordance with the project health and safety plan.
6.6 Safety Officer shall check and ensure all safety precautions are followed.
7.0 Records
7.1 Inspection request (for Witness of start-up and commissioning) duly signed by NMX and Consultants
7.2 Signed-off pre-commissioning checklists
7.3 Commissioning reports (Refer attached format)
7.4 Calibration certificates of testing instruments
8.0 References
8.1 Specification Sections
8.2 Manufacturer’s start-up and commissioning instructions.
8.3 Approved Domestic Water Pump submittals / drawings.
8.4 Approved shop drawings.
9.0 Attachments
9.1 Schedule of domestic water pumps
9.2 Pre-commissioning checklist 9.3 Manufacturer’s instructions.