HVAC Commissioning Engineer (CDU-50)

HVAC Commissioning Engineer – (CDU-50) | Ajman, UAEWe are looking for an experienced HVAC Commissioning Engineer to support the commissioning and onsite activities of a Coolant Distribution Unit (CDU-50) at a data center project in Ajman, United Arab Emirates.Position DetailsPosition: HVAC Commissioning Engineer – CDU-50Location: Ajman, UAEDuration: 6 monthsKey ResponsibilitiesL2 – Pre-CommissioningVerify installation of primary and secondary piping, hydraulic components, and electrical connections.Check wiring, terminations, grounding, mounting, and overall installation quality.Verify completion and adequacy of system flushing.Conduct comprehensive visual and mechanical inspections for defects, leaks, damage, and installation issues.L3 – Start-Up & CommissioningPerform mechanical and electrical commissioning checks.Verify piping installation, flow direction, and compliance with design requirements.Conduct power supply, voltage, phase sequence, grounding, and protection checks.Validate sensors, controls, calibration, and operational readiness.Perform system filling, flushing, air purging, and hydraulic balancing.Test pumps and VFDs, including rotation, control response, and performance.Verify control sequences, alarms, safeties, and interlocks.Test BACnet/Modbus communication and BMS integration.L4 – Onsite Support / SATSupport CDU testing using the recommended Site Acceptance Test (SAT) procedure.Verify cooling operation, pump functionality, coolant circulation, temperature and pressure control, alarms, and operational performance.Monitor system operation through the CDU HMI.Record operating parameters, alarms, temperatures, pressures, flow rates, pump status, and valve positions.Extract event/alarm logs where supported.Prepare commissioning/test reports documenting results and key HMI readings.L5 – Onsite SupportProvide standby support for CDU operation.Perform immediate troubleshooting and support in case of abnormal conditions or system alarms.Ideal CandidateProven experience in HVAC commissioning, preferably with CDU / cooling distribution systems in data center or mission-critical environments.Strong knowledge of chilled water/hydronic systems, pumps, VFDs, valves, sensors, controls, and BMS integration.Experience with BACnet/Modbus communications and commissioning documentation.Ability to troubleshoot mechanical, electrical, controls, and hydraulic issues onsite.Strong understanding of L2/L3/L4/L5 commissioning activities.Willingness to work onsite in Ajman, UAE for the full project duration.