• Application Deadline:
• Position: Daikin VRV / AHU / Chillers Maintenance Technician



• Job Type Full Time



• Qualification BA/BSc/HND , OND



• Experience 3 - 7 years



• Location Lagos




• Job Field Engineering / Technical 
  
  

Description

• Are you a hands-on HVAC expert who can diagnose, fix, and lead from the front? We are looking for a highly experienced HVAC Technicians to take full technical ownership of complex cooling systems across client sites.


• The HVAC Technician will be responsible for the operations, maintenance, troubleshooting, and repair of commercial and industrial HVAC systems across high-profile facilities and mission-critical sites.


• The successful candidates will be directly responsible for the day-to-day operation and maintenance of:
  
  
  
  • VRV / VRF systems
  
  
  • Air Handling Units (AHUs)
  
  
  • Chillers
  
  
  • Ventilation and ducting systems
  
  
  • HVAC controls and related mechanical/electrical systems
  
  
  
  


• This role requires a highly practical technician with strong fault-diagnosis capability, preventive maintenance discipline, and the ability to respond effectively to HVAC operational issues in real time.

Key Responsibilities

Daily Operations & Monitoring:

• Carry out daily inspection and operational checks of HVAC systems and equipment


• Monitor system temperatures, pressures, airflow, refrigerant levels, and operational performance


• Monitor chiller parameters including:
  
  
  
  • suction/discharge pressures
  
  
  • condenser and evaporator temperatures
  
  
  • chilled water temperatures
  
  
  • oil levels and compressor performance
  
  
  
  


• Monitor AHU performance including:
  
  
  
  • blower motors
  
  
  • filters
  
  
  • belts and pulleys
  
  
  • dampers
  
  
  • actuators
  
  
  • condensate drainage systems
  
  
  
  


• Monitor VRV/VRF systems for alarms, communication faults, gas leakage, and indoor/outdoor unit performance

Preventive Maintenance:

• Execute scheduled preventive maintenance activities on:
  
  
  
  • chillers
  
  
  • AHUs
  
  
  • FCUs
  
  
  • VRV/VRF systems
  
  
  • ventilation systems
  
  
  
  


• Clean condenser and evaporator coils


• Replace filters, belts, bearings, and worn-out components


• Check and top up refrigerants where required


• Carry out lubrication of moving parts


• Inspect electrical panels, contactors, relays, breakers, sensors, and controls


• Conduct insulation resistance and electrical continuity checks

Troubleshooting & Repairs:

• Diagnose and resolve HVAC faults and breakdowns promptly


• Troubleshoot:
  
  
  
  • compressor failures
  
  
  • refrigerant leakage
  
  
  • PCB/control faults
  
  
  • airflow issues
  
  
  • sensor/calibration issues
  
  
  • communication/network faults
  
  
  • electrical and mechanical failures
  
  
  
  


• Repair or replace defective components including:
  
  
  
  • compressors
  
  
  • motors
  
  
  • expansion valves
  
  
  • actuators
  
  
  • thermostats
  
  
  • sensors
  
  
  • control boards
  
  
  
  


• Respond effectively to emergency breakdowns and critical HVAC failures

System Optimization:

• Support energy efficiency and optimization initiatives


• Ensure systems operate within design parameters


• Recommend operational improvements and equipment upgrades where necessary


• Assist with balancing and optimization of airflow and chilled water systems

Documentation & Reporting:

• Maintain accurate maintenance logs and service records


• Record system readings, faults, repairs, and maintenance activities


• Prepare daily and weekly technical reports


• Escalate recurring issues and major technical risks to supervisors promptly

Health, Safety & Compliance:

• Ensure compliance with all safety procedures and HVAC operational standards


• Properly handle refrigerants and HVAC tools/equipment


• Maintain good housekeeping within plant rooms and technical areas


• Follow lockout/tag-out and electrical safety procedures

Requirements

• OND / HND / Technical Certification in Mechanical, Electrical, HVAC, or related discipline with 3–7 years practical HVAC maintenance experience


• Strong experience with:
  
  
  
  • Daikin VRV/VRF systems
  
  
  • Chillers
  
  
  • AHUs
  
  
  • Commercial HVAC systems
  
  
  
  


• Ability to read HVAC drawings and technical manuals


• Good understanding of refrigeration cycles and HVAC controls


• Hands-on troubleshooting capability is essential


• Experience in commercial buildings, malls, hospitals, airports, theatres, or industrial facilities is an advantage

Required Skills:

• Daikin training/certification


• Strong fault diagnosis capability


• Good communication and teamwork skills


• Ability to work under pressure and respond to emergencies


• Leadership or supervisory capability is an added advantage