Method Statement Title: Installation of Sump Pumps
- Scope
- This method statement applies to installation of sump pumps as per specification Ref.15700 Part 2.03
Note
A separate method statement Ref.ETA/MS/P-012 will be submitted for start-up and commissioning of sump pumps.
- Purpose
- Purpose of this method statement is to outline the method of storage, handling and installation of sump pumps, valve package and controls.
- Material
- Pump, guide rail, floats, cables, pedestal, stainless steel chain.
- Valves (gate valves NRV, etc.) and piping accessories as per approved submittals shop drawings.
- Application Location
- Podium Basement.
- Method
- Receiving
- When received at site, each pump, valves, grid rails, pedestals, stainless steel chain shall be checked for quantities model numbers, physical damages, etc., and notify supplier of any discrepancies for suitable rectification or replacement.
- Valves shall be segregated as per sizes/models and stored on racks within a covered store.
- Any items found damaged or not found suitable as per the project requirements shall be quarantined. Non-complaint material shall be clearly marked and stored separately to prevent any inadvertent use until returned to vendor.
- Storage
- Pump shall be stored on a flat surface in well ventilated storage area.
- Inlet and outlet flange blanks shall not be removed until ready for connection to pipe work.
- Manufacturer’s instructions shall be strictly followed as applicable.
- If the pumps are stored for longer periods the shaft shall be periodically rotated and lubricated, if required.
- The stored pumps are to be inspected periodically for obvious conditions such as standing water, parts theft, excess dirt buildup or any other abnormal condition.
- Storekeeper will be responsible for proper storage and maintenance of records, as required.
- Preparation
- The sump pit designed to meet Dubai Municipality requirements shall be provided by Civil Contractor (NMX).
- Examine the sump pits for suitability as per approved drawings/requirements.
- Check and ensure that the shop drawings used are latest and approved for construction.
- ETA will coordinate the locations and requirements as per approved shop drawings.
- Check the piping support locations, cable entry floats are coordination in coordination with pump and piping layout and ensure they are not obstruction the space around pump.
- Ensure easy access and sufficient clearance for servicing and maintenance i.e. for replacement of pump.
- Ensure vertically of guide rails for easy removal of pump for maintenance.
- Installation
- Provide proper ventilation before getting into the sump pit.
- Mark the location of the pump guide rail, piping works in line with the shop drawings / requirement.
- Drill the suitable size holes were applicable.
- Shift the pumps and other associated accessories to the place of installations in safe manner use hand trolley / fork lift /crane as applicable / required as per site conditions.
- Check and ensure free rotation of shaft.
- Position the pump base on the area, which are already marked and drilled. After proper alignment fix the duct foot bend properly.
- Fix guide rail and lifting chain properly.
- Complete the piping and valve package installation as per approved drawings.
- Install the electrical control panel and power connections as per approved drawings.
- Provide grounding wiring as per approved shop drawing / manufacture recommendation.
- Follow the manufacturers instructions while installing the pump.
- After completion of the installation, same shall be checked and certified by the manufacturer / authorised local representative.
- Inspection
- After completion and pump installation and piping connections, the same shall be checked and certified by the pump manufacturer/authorised local representative.
- Request for inspection shall be raised for consultant’s inspection.
- Safety
- All safety precautions shall be followed as per established project safety plan and procedure.
- Only experienced and skilled technicians shall be engaged for carrying out pump installation work.
- The people involved in the installation shall use PPE such as safety helmets, safety shoes, harness, gloves, coverall, goggle, etc., as required.
- Safety officer shall check and ensure that all safety precautions are followed.
- Safety officer shall check and ensure that all scaffolding and ladders use at site are having duly signed tags.
- References
- Manufacturers instructions.
- Approved sump pump submittal.
- Approved shop drawings.
- Specification Section.
- Records
- Request for Inspection duly signed by the Consultant.
- Pump installation checklist.
- Installation certificate from manufacturer authorised local representative.
- Attachment
10.1 Installation checklist.
