📌 1. Purpose

This method statement outlines the procedures for Testing & Commissioning of Ventilation and Exhaust Fans in accordance with project specifications and approved shop drawings.

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📌 2. Scope

Covers the complete process of Testing & Commissioning of all Ventilation and General Exhaust Fan Units per:

• Project Requirements
• Manufacturer Instructions
• Approved Shop Drawings

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📌 3. References

• ✅ Latest approved HVAC fans shop drawings
• ✅ Project Quality Plan (PQP)
• ✅ Project HSE Plan
• ✅ Material Approvals

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📌 4. Definitions

Here are key abbreviations used:

• PQP – Project Quality Plan
• PSP – Project Safety Plan
• QCP – Quality Control Procedure
• WIR – Work Inspection Request
• MIR – Material Inspection Request
• ASHRAE – Air Conditioning Society
• SMACNA, ARI, ASME, NFPA, UL, BMS, NEMA, AMCA, TEFC, BS – Industry codes and standards

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📌 5. Responsibilities

👨‍💼 Project Manager

• Ensure smooth execution per project plan
• Oversee safety & quality compliance

👷‍♂️ Construction Manager

• Control and supervise site activities
• Coordinate with QA/QC and Site Engineers

🧑‍💻 Site Engineer

• Implement method statements
• Monitor progress and ensure coordination
• Respond to consultant comments

🧑‍🔧 QA/QC Engineer

• Monitor site execution as per specs
• Raise WIRs/MIRs and ensure inspections
• Assist during consultant inspections

👨‍🔧 Site Foreman

• Execute tasks in coordination with Site Engineer
• Daily work reporting
• Ensure safety and quality compliance

👷 Safety Officer

• Enforce HSE Plan
• Ensure proper PPE and tools are used
• Monitor site for potential hazards

📦 Store Keeper

• Manage proper material storage
• Acknowledge deliveries in coordination with QA/QC

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📌 6. Equipments Required

• 🔧 Basic Electrical Tools
• 🌬️ Pitot Tube / Air Flow Meters
• 💨 Anemometer
• 🔌 Multimeter (FLA reading)
• 🔄 Tachometer (Fan RPM)
• ✍️ Marker
• 🧰 Toolbox
• 🪜 Step Ladder

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📌 7. Procedure

✅ General HSE Requirements

• Safety signs and PPE mandatory
• Commissioning Kick-Off Meeting

✅ Pre-Commissioning Checklist

• PTW system in place
• Pre-safety inspection
• Approval of latest installation drawings
• Inspected and approved materials/equipment
• LOTO system active
• Inspection tools ready
• Stable power supply

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⚙️ Commissioning Steps

🔁 Functional Test

• Ensure pre-commissioning completed
• Obtain approved PTW
• Verify control panel commissioning
• Check line voltage
• Test motor operation and direction
• Observe for unusual noises or vibrations
• Record motor current and voltage readings
• Ensure BMS control devices function properly

🔍 Testing & Balancing

• Conducted by third-party agency
• Follow approved procedures and specs

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🔄 Post-Test Reinstatement

• Sign-off on check/test sheets
• Remove test instruments
• Confirm no faults in system
• Lock the control panel

🛠️ Preservation and Flat Condition

• Ensure stable, complete power supply
• Restrict access to authorized personnel only
• Confirm no overheating or loose connections

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📌 8. System-Specific Commissioning

🧪 Chemical Rooms

• Operated via control panel or emergency push button
• Fan starts during chemical spills

🍳 Kitchen Fans

• OFF: Both extract & make-up fans off
• ON: Both fans operate from kitchen control panel

🌬️ General Fans

• OFF: Supply and extract fans off
• ON: Controlled via local switch at normal operation

🧯 Staircase & Lift Pressurization Fans

• Controlled by Fire Alarm Control Panel (FACP)
• BMS monitors fan run/trip status and alarms

🔌 Generator Room

• Fan interlocked with generator panel
• Fan starts when generator operates

🚽 Toilet Exhaust Fans

• Operated via roof control panel
• Motorized damper opens with fan
• Failure triggers automatic fan and damper operation

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📌 9. Attachments

• 📄 Inspection & Test Plan
• 📋 Pre-Commissioning Check Sheet
• ✅ Testing & Commissioning Check Sheet
• 🏷️ Commissioning Certificate Form
• 📝 Handover Certificate Form
• ❌ Punch List Form
• ⚠️ Risk Assessment
• 📊 Fans Schedule
• 🗺️ Drawing Attachments