Daikin VRV / AHU / Chillers Maintenance Technician at International Facilities Services Limted (IFS)

International Facilities Services Limted (IFS) is a leading integrated facilities management company delivering technical, engineering, maintenance, cleaning, and operational support services across Nigeria and West Africa.

We are recruiting to fill the position below:

Job Title: Daikin VRV / AHU / Chillers Maintenance Technician

Location: Lagos
Employment Type: Full-time

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

Salary
N300,000 - N400,000 monthly.

Application Closing Date
Not Specified.

How to Apply
Interested and qualified candidates should:
Click here to apply online