1. Purpose
   The subcontractor shall perform a complete inspection, testing, and condition
   assessment of the Central Chilled Water Plant (CWP) to evaluate the operational
   condition of eight (10) water cooled Chillers, each having capacity of 1100 TR and
   identify the extent of overhaul, repair, replacement, and maintenance activities
   required to restore the plant to reliable and efficient operation.

1. Scope of Services
   The subcontractor shall provide all necessary manpower, supervision, tools,
   instruments, testing equipment, consumables, transportation, and documentation
   required to execute the inspection.
   2.1 Plant Survey and Data Collection

• Conduct site visit and detailed survey of the entire chilled water plant.
• Review available O&M manuals, maintenance records, equipment
  datasheets, and historical operating data.
• Verify equipment inventory and nameplate data.
• Record operating parameters and current equipment condition.
  2.2 Chillers Inspection
  Inspect all installed chillers including but not limited to:
• Compressor condition assessment.
• Refrigerant circuit inspection.
• Oil analysis and lubrication system inspection.
• Motor insulation resistance testing.
• Vibration measurements.
• Bearing condition assessment.
• Evaporator and condenser condition evaluation.
• Tube fouling assessment.
• Control panel and safety devices inspection.
• Refrigerant leak inspection.
• Review of operating logs and alarm history.
  2.3 Pump & Piping Inspection Requirements
• Contractor shall inspect the existing nine (9) primary chilled water pump, each
  having capacity of 1900 gpm, motor size 100 hp (approx.)
• Contractor shall inspect the existing eight (8) condenser water pump, each
  having capacity of 3300 gpm, motor size 100 hp (approx.)
• Contractor shall inspect all the existing chiller plant piping for any corrosion.
  Chiller plant piping consists of 14” dia, length 250 m (approx.), 10” dia, length
  250 m (approx.).
  2.4 Instrumentation and Control System
• Functionality test for all Packaged instruments.
• Functionality test for Control Valves.
• Instrument cables integrity test.
  2.5 Building integrity assessment
• Structural integrity assessment of the steel structure for single story steel
  building (size 50 m x 50 m approx.) with concrete foundation.
• Structural integrity assessment of five (5) concrete foundations.

3. Testing Requirements
   The subcontractor shall perform, where applicable:

• Vibration analysis.
• Thermographic inspection.
• Ultrasonic testing.
• Motor insulation resistance testing.
• Chiller Oil analysis.
• Water quality testing.
• Operational performance testing.
• Flow and pressure measurements.
• Functional testing of controls and safety devices.

4. Deliverables
   The subcontractor shall submit the following:
   4.1 Inspection Report
   A detailed report including:

• Executive summary.
• Equipment inventory list.
• Condition assessment for each equipment item.
• Identified defects and deficiencies.
• Test results and measurements.
• Photographic records.
• Risk assessment of identified issues.
  4.2 Overhaul Recommendation Report
  The report shall include:
• Recommended overhaul scope for each equipment item.
• Required repairs and replacements.
• Spare parts requirements.
• Manpower estimate.
• Recommended shutdown duration.
• Priority classification (Critical, Major, Minor).
• Remaining useful life assessment.
• Budgetary cost estimate for overhaul activities.
  4.3 Final Assessment Matrix
  The subcontractor shall provide a condition index and recommendation matrix
  identifying:
• Equipment requiring complete overhaul.
• Equipment requiring partial overhaul.
• Equipment requiring replacement.
• Equipment suitable for continued operation.

5. HSE Requirements

• Comply with all Client and site HSE requirements.
• Obtain necessary work permits before commencement.
• Follow lockout/tagout (LOTO) procedures where applicable.
• Ensure personnel are adequately trained and certified.

6. Exclusions

• Actual overhaul, repair, replacement, or procurement activities.
• Major dismantling unless specifically authorized.
• Refrigerant recovery and recharging unless requested separately.

7. Completion
   The subcontractor shall complete the inspection and submit the final condition
   assessment and overhaul recommendation report within the period specified in
   the contract.
   Outcome: The final deliverable shall provide a comprehensive basis for defining
   the complete overhauling scope, budget estimate, execution strategy, and
   shutdown plan for the Central Chilled Water Plant.

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