Method Statement Title: Start-up and Commissioning of Fans

Method Statement Title: Start-up and Commissioning of Fans

1.0       Scope

The scope of this Method Statement is to describe the procedure for pre-commissioning checks, start-up and commissioning of ventilation and pressurization fans installed within Burj Dubai – The Residences Project, in accordance with the Specification Section 15800.

            Note

a.         For installation of Fans, refer to method statement Ref. ETA/MS/M-003, M-007 & M-008.

            b.         TAB Method Statement shall be covered under Ref. ETA/MS/M-015

2.0       Material

• Fans as per approved submittals.

• Ductwork connections as applicable.

            2.3       Electrical Starters and Controls.

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. Calibration certificates to be forwarded to NMX, for review prior to commencement.

4.0       Pre-commissioning checks prior to start-up

4.1       Mechanical

                        4.1.1    Carefully inspect the unit and check the installation with anti vibration materials is complete.

                        4.1.2    Check and ensure the shipping bolts / clamps are removed.

• Check tightness of all nuts / bolts, screws, fasteners etc. as applicable

4.1.4    Check the alignment of belts and adjust the tension (where applicable).

                        4.1.5    Check the ductwork connections are complete as per approved drawings / details.

                        4.1.6    Ensure the fan interiors and the ducts are clean and free from foreign material.

                        4.1.7    Properly secure all safety guards (where applicable)

                        4.1.8    Rotate the fan by hand and ensure free rotation.

            4.2       Electrical

4.2.1    Ensure the connected cables have been tested and verify the test reports   

                        4.2.2    Check all terminations are complete and tightened as required

4.2.3    Check the cabling / wiring including grounding is completed and dressed neatly.

                        4.2.4    Check the isolator/emergency stop switch is fixed close to the fan for emergency power shutdown.

                        4.2.5    Ensure all identification and labelling is completed.

                        4.2.6    Set the overload relay to correct setting as per the fan motor current on the nameplate.

5.0       Start-up and Testing

5.1       Check the line voltage and phase rotation before energizing the power.

5.2       Switch ON the power and ensure the rotation of fan is in correct direction.

            5.3       Verify for the proper operation of the motor, drive system and fan impeller.

            5.4       Measure the current drawn (amperage) by the fan motor and record the same.

            5.5.      Check for any abnormal noise and vibration on start-up.  Rectify as / if required.

            5.6       After about an hours operation, check that all nuts / bolts, screws, clamps etc. are tight and secure.

            5.7       Check the tension of  ‘V’ Belts and adjust if required (where applicable).

            5.8       Measure the total airflow delivered by the fan, check against the design flow and record the same in the approved format.

            5.9       Record the fan and motor nameplate data in the commissioning format.

            5.10     Ensure compliance to the manufacturer’s instruction as applicable.

• Check the operations/monitoring of respective fans on BMS as per the logic and sequence defined in the material submittal No.NMX/BDR/4045/GEN/CD/10809 dated 10.10.04 (ETA 024, Rev.3).

• Give clearance for TAB works

6.0       Safety

            6.1       Only experienced and skilled personnel shall be engaged for start-up and commissioning. 

            6.2       Warning signs and tapes will be placed as required. 

            6.3       Safety guards shall be in place and secured prior to start-up.

            6.4       Cable test reports shall be verified prior to energisation.

            6.5       All other safety procedures shall be adhered to as per Project Health and Safety Plan, as applicable.

            6.6       Safety Officer shall check and ensure all safety precautions are followed.

• Inspection

• Work Inspection Request shall be raised for Consultants approval.

• Inspection shall be recorded in the approved format.

8.0       Records

            8.1       Inspection requests duly signed by NMX and Consultants

            8.2       Signed-off pre-commissioning checklists

            8.3       Commissioning reports

            8.4       Calibration certificates of testing instruments

9.0       References

            9.1       Specification Section 15800

            9.2       Manufacturer’s instructions

            9.3       Approved Fan Submittals

            9.4       Approved shop drawings