Key Responsibilities
Daily Operations & Monitoring:
Preventive Maintenance:
Troubleshooting & Repairs:
Documentation & Reporting:
Health, Safety & Compliance:
N300,000 - N400,000 monthly.
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.
- VRV / VRF systems
- HVAC controls and related mechanical/electrical systems
- 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
- suction/discharge pressures
- oil levels and compressor performance
- blower motors
- condensate drainage systems
- Execute scheduled preventive maintenance activities on:
- 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
- chillers
- ventilation systems
- 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
- thermostats
- sensors
- control boards
- Respond effectively to emergency breakdowns and critical HVAC failures
- compressor failures
- electrical and mechanical failures
- compressors
- control boards
- 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
- 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
- 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
- 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
- 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
- Daikin VRV/VRF systems
- Commercial HVAC systems
- 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