The Importance of Preventive Maintenance

A commercial HVAC system is a complex mechanical asset that requires regular preventive maintenance to operate reliably. Neglecting service leading to a sudden cooling breakdown during Dhaka's hot summer can halt office work, spoil inventories, and result in emergency repair bills. Follow our expert maintenance checklist to keep your systems running at peak performance.

Monthly HVAC Tasks

  • Inspect, wash, or replace standard pre-filters to keep airflow unrestricted.
  • Check condensate drain pans and lines for blockages or standing water.
  • Visually check outdoor units for leaves, dust, or structural blockages.

Quarterly HVAC Tasks

  • Examine fan belts for wear, tension, and proper alignment.
  • Lubricate moving motor bearings and shaft couplings as required.
  • Check electrical contactors, loose terminal connections, and running amperage.

Annual Professional HVAC Audit

  • Clean evaporator and condenser coils with specialized coil cleaner.
  • Verify refrigerant pressures and check for slow leaks.
  • Calibrate smart thermostats, relative humidity sensors, and duct dampers.
  • Perform complete air and water balance testing across AHU zones.

The Aircons Ltd. offers premium Annual Maintenance Contracts (AMC) in Bangladesh, providing planned inspection schedules, 24/7 priority emergency response, and certified engineering expertise to maximize the life of your systems.