Method Statement for installation,Testing & commissioning of Sprinkler System.

1.0 PURPOSE

This method statement describes the process for the installation, testing, and commissioning of the fire fighting sprinkler system as outlined in the project specifications and approved shop drawings.

2.0 SCOPE

This method covers the supply, installation, testing, and commissioning of the sprinkler system, following project requirements, approved drawings, specifications, and manufacturer instructions.

3.0 REFERENCES

  • Approved Shop Drawings for Fire Fighting System
  • Project Specifications
  • Project Quality Plan (PQP)
  • Health, Safety and Environment Plan (HSE Plan)
  • Approved Material Submittals
  • Inspection and Test Plan (ITP)

4.0 DEFINITIONS

AcronymDescription
PQPProject Quality Plan
PSPProject Safety Plan
QCPQuality Control Procedure
HSEHealth, Safety, and Environment
MSMethod Statement
ITPInspection Test Plan
QA/QCQuality Assurance / Quality Control Engineer
WIRWork Inspection Request
MIRMaterial Inspection Request
UPVCUltra Polyvinyl Chloride
HDPEHigh-Density Polyethylene
PEXCross-linked Polyethylene
G.I. PipeGalvanized Iron Pipe

5.0 RESPONSIBILITIES

5.1 Project Manager

  • Ensure work is completed as per project schedule.
  • Ensure all tools and equipment are in good condition.
  • Coordinate safety and quality measures.

5.2 Construction Manager

  • Supervise and control site works.
  • Coordinate with QA/QC, site team, and foremen.
  • Approve WIRs before submitting to the Consultant.

5.3 Site Engineer

  • Implement method statement as per project specs and drawings.
  • Monitor progress and coordinate with QA/QC and Safety Engineers.
  • Ensure revised information is communicated to the foremen.

5.4 QA/QC Engineer (MEP)

  • Monitor site work compliance with drawings and specs.
  • Raise MIRs/WIRs and perform quality tests.
  • Coordinate inspections with the Consultant.

5.5 Site Foreman

  • Execute daily work and manage resources.
  • Submit daily progress reports.
  • Report unforeseen incidents immediately.

5.6 Safety Officer

  • Enforce HSE plan and site safety regulations.
  • Provide training and inspections.
  • Ensure PPE use, barricades, and lighting.

5.7 Store Keeper

  • Manage safe and organized storage of materials.
  • Coordinate with QA/QC for material receiving.

6.0 EQUIPMENT

  • Tool Box
  • Measuring Tape
  • Spirit Level
  • Pipe Cutting & Threading Machine
  • Step Ladder, Scaffolds, and Platforms
  • Torque Wrench
  • Electric Drill, Welding & Grinding Machines
  • Solvent Cement
  • Water Level Marker
  • Pressure Gauge
  • Hammer

7.0 PROCEDURE

7.1 General Requirements

  • Use only approved materials and inspect upon delivery.
  • Installation by qualified personnel following specifications.
  • MIR must be approved before installation.

7.2 Material Delivery & Storage

7.2.1 Delivery

  • Transport in covered packaging to prevent damage.
  • Handle carefully; avoid dropping or dragging.

7.3.1 Storage

  • Store indoors, protected from weather.
  • Keep equipment in original packaging until needed.

7.4 Installation Sequence

7.4.1 Safety

  • Follow HSE regulations.
  • Provide toolbox talks before work.
  • Use proper PPE and ensure safe access.

7.4.2 Pre-Installation

  • Confirm all installations and tests are approved.
  • Ensure civil works clearance.
  • Use approved shop drawings only.
  • Check for service clashes.

7.4.3 Installation Procedure

7.4.3.1 General System Description

  • Install as per NFPA 13 and manufacturer guidelines.
  • Sprinklers activate automatically during fire due to heat.

7.4.3.2 Detailed Installation

7.4.3.2.1 Sprinkler Heads

  • Install as per approved drawings.
  • Hand-tighten, then use a wrench.
  • Install escutcheon plates correctly.
  • Ensure proper alignment and spacing.

7.4.3.2.2 Butterfly Valves

  • Install where accessible.
  • Ensure proper valve support.
  • Do not force valve closed; inspect for debris.
  • Integrate fire alarm connections.

7.4.3.2.3 Flow Switches

  • Mount on horizontal (preferably top) or vertical pipes.
  • Drill hole as per manufacturer specs.
  • Ensure vane moves freely inside the pipe.
  • Connect to the fire alarm panel.

7.4.4 Testing & Commissioning

7.4.4.1 Visual Inspection & Testing

  • Verify hydrostatic testing is completed.
  • Ensure proper pipe support and equipment installation.

7.4.4.1.1 Flushing

  • Flush all risers before connecting sprinklers.
  • Use clean water and repeat if necessary.
  • Drain flushed water safely.
  • Conduct hydrostatic test afterward.

7.4.4.2 Commissioning

  • Calibrate all instruments before use.
  • Ensure all installations and supports are approved.
  • Pressurize the system using fire pumps.
  • Check for leaks and proper pressure on all floors.
  • Keep the system under observation for 24 hours.
  • Simulate fault and fire alarms using drain valves.
  • Verify water throw of hose reels (minimum 6m range).
  • Place fire pumps in auto mode post-commissioning.

8.0 ATTACHMENTS

  • Installation Check Sheet
  • Fire Fighting Piping Testing Sheet
  • Testing & Commissioning Checklist
  • Risk Assessment

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