Mechanical Commissioning (HVAC & Water to Water Cooling) data centre

Our Client are currently looking for a Mechanical Commissioning (HVAC & WatertoWater Cooling) for a Data Centre - expat assignment in India

Duration: 1-3 years

Location: based on site in India; Mumbai or Hyderabad

Monday to Friday, 8 hours per day

Rotation : 8 weeks on / 2 weeks off

Start date: spring 2026

712+ years experience in mechanical commissioning for critical facilities.

Role Purpose

Oversee the commissioning of all mechanical, HVAC, and watertowater cooling systems for a hyperscale/enterprise datacentre in India. Ensure safe, compliant, and performanceverified delivery of cooling infrastructure from plant to white space, achieving required redundancy, thermal stability, and operational readiness.

Key Responsibilities

Cooling Plant & HVAC Systems

• Oversee commissioning for HVAC systems, including AHUs, CRAHs/CRACs, MAUs, exhaust systems, pressurisation systems, and humidity control.
• Commission water-to-water cooling systems, including:
• Chillers (aircooled, watercooled, modular, or watertowater units)
• Cooling towers / dry coolers
• Heat exchangers
• Primary/secondary pumping systems
• Glycol loops (if applicable)
• Plate heat exchangers and economiser systems
• Oversee system flushing, chemical cleaning, passivation, pressure testing, leak tests, and system balancing.

Performance & Controls

• Validate thermal performance: deltaT, flow rates, capacity, and setpoint stability across all ambient conditions.
• Commission HVAC control sequences including temperature, humidity, static pressure, free cooling, staging, and redundancy logic.
• Work closely with BMS/Controls Lead to ensure all mechanical points, trends, alarms, and SOOs operate as designed.

Integration & Testing

• Ensure complete commissioning of:
• Chilled water loops
• CT/EC fan controls
• Cooling distribution in whitespace
• Pressure zoning
• Heat rejection systems
• Develop and execute functional performance tests (FPTs) and system-level tests.
• Support Integrated Systems Testing (IST) by preparing load strategies, thermal load tests, and failuremode testing (pump failure, tower fan failure, chiller isolation, valve malfunction scenarios).

Documentation & Quality

• Maintain complete mechanical commissioning documentation: ITPs, test sheets, redlines, defect logs, and O&M integration.
• Drive punch list closure for all mechanical/HVAC and cooling systems.
• Ensure commissioning deliverables support operations handover: maintenance strategies, control strategies, spares, and training.

Required Experience

• 712+ years experience in mechanical commissioning for critical facilities.
• Deep experience with:
• HVAC systems in missioncritical environments
• Waterto-water cooling systems (mandatory)
• Chilled water systems (variable primary/secondary)
• Cooling towers / dry coolers
• CRAHs/CRACs / white space distribution
• Demonstrated delivery of mechanical commissioning for datacentres or large industrial MEP projects.
• Strong understanding of TAB, hydronic balancing, and controls optimisation.

Qualifications

• Degree in Mechanical Engineering or equivalent technical qualification.
• Additional credentials in commissioning management, HVAC certifications, or critical environment training preferred.
• Experience on international expat assignments, ideally in India or APAC regions.

Competencies

• Strong multivendor coordination & orchestration.
• Excellent rootcause analysis for cooling and controls behaviours.
• Strong documentation discipline and ability to enforce design intent.

Expat & IndiaSpecific Requirements

• Experience managing local contractors, OEMs, and BMS vendors in India.
• Strong safety culture, especially in highrisk commissioning environments.
• Ability to work extended commissioning and IST windows as needed.
• Willingness to travel to OEM factories for FAT and regional support.