HVAC Technician – Precision Cooling & DX Systems

About the role

We are seeking an experienced HVAC Technician to install, maintain and repair air‑conditioning systems, including data‑centre precision cooling and DX comfort units, for Toptech Engineering Limited in Lagos.

Key responsibilities

• Installing, maintaining and repairing air‑conditioning systems and equipment (Precision Cooling units, DX comfort units, etc.).
• Identifying maintenance risks on equipment.
• Diagnosing electrical and mechanical faults for HVAC systems.
• Cleaning, adjusting and repairing HVAC systems.
• Working with OEM support on new installations and repairs.
• Performing emergency repairs promptly and efficiently.
• Keeping logs and records of all maintenance activities.
• Generating reports for preventive and corrective maintenance work.
• Conducting prospective job surveys related to HVAC systems and reporting findings.
• Ensuring compliance with appliance standards and the Occupational Health and Safety Act.

Required profile

• Diploma in HVAC Systems or equivalent.
• 3–5 years of experience as an HVAC technician, specifically with precision cooling and DX systems.
• Understanding of air‑conditioning, refrigeration and heating principles.
• Computer literacy.
• Good written, verbal and interpersonal communication skills.

Required skills

• Precision cooling system installation and maintenance
• DX (direct expansion) comfort unit servicing
• Electrical fault diagnosis
• Mechanical fault diagnosis
• HVAC system troubleshooting
• Computer literacy for maintenance software