Data Center Precision Cooling Technician

STULZ SINGAPORE PTE. LTD.; Singapore; On-site; SGD 55,000 - 75,000; Full time

Job summary

STULZ SINGAPORE PTE. LTD. is seeking a skilled HVAC technician to install, maintain and troubleshoot precision cooling systems used in data centres and mission-critical facilities.

You will service CRAH/CRAC units, replace compressors and valves, and verify performance while ensuring reliability and customer satisfaction. The role requires practical knowledge of electrical and mechanical systems, experience with refrigerant handling and BMS communication, and the ability to work independently or

Qualifications

• Electrical/Mechanical engineering background required.
• Experience in HVAC servicing or maintenance is an advantage.
• Basic knowledge of HVAC, air conditioning, refrigeration, electrical, and control systems.
• Ability to perform preventive and corrective maintenance, troubleshooting, and repair of HVAC and precision cooling equipment.
• Experience replacing compressors, chilled water valves, EC fans, sensors and relays.

Responsibilities

• Perform preventive and corrective maintenance on CRAH, CRAC, and other precision cooling systems.
• Troubleshoot mechanical, electrical, and control system faults.
• Replace compressors including refrigerant recovery, evacuation, charging, leak testing, and performance verification.
• Replace chilled water control valves and actuators.
• Calibrate sensors, perform valve alignment, and test system performance after replacements.
• Inspect and service EC fans, air filters, sensors, and related components.
• Coordinate with engineers and contractors during maintenance and commissioning.
• Ensure safety procedures and customer requirements are followed.

Skills

HVAC servicing

Preventive maintenance

Troubleshooting

CRAC/CRAH experience

Refrigerant handling

BMS communication (BACnet/Modbus)

Electrical & mechanical knowledge

Wiring diagrams reading

Education

Electrical/Mechanical Engineering degree or related

Tools

Belimo valves

EC fans

HVAC service tools

Job description

STULZ SINGAPORE PTE. LTD. is seeking a skilled HVAC technician to install, maintain and troubleshoot precision cooling systems used in data centres and mission-critical facilities.

You will service CRAH/CRAC units, replace compressors and valves, and verify performance while ensuring reliability and customer satisfaction. The role requires practical knowledge of electrical and mechanical systems, experience with refrigerant handling and BMS communication, and the ability to work independently or