Executive

To perform hands-on preventive, breakdown, cleaning, servicing, filter replacement, and routine maintenance of AHUs under the guidance of the HVAC/AHU Specialist, ensuring reliable operation of cleanroom HVAC systems.
Key Responsibilities
1. AHU Preventive Maintenance
• Perform hands-on preventive maintenance of AHUs as per approved schedules.
• Inspect and maintain:
o Fans and motors
o Bearings
o Belts and pulleys
o Filters
o Cooling/heating coils
o Dampers
o Actuators
o Drain trays
o Valves
o VFDs
o AHU panels
• Carry out lubrication, belt tensioning, alignment, cleaning, and component replacement.
2. AHU Cleaning & Filter Maintenance
• Carry out routine AHU cleaning and housekeeping.
• Clean pre-filters and other washable filters as per schedule.
• Assist in replacement of fine filters and HEPA filters under approved procedures.
• Monitor filter condition and differential pressure.
• Maintain filter cleaning/replacement records.
• Ensure proper cleaning practices to avoid contamination of cleanroom systems.
3. Air Balancing & Pressure Maintenance
• Assist the HVAC specialist in air balancing and pressure balancing.
• Take airflow and pressure readings using appropriate instruments.
• Adjust dampers as instructed to achieve required airflow and pressure conditions.
• Assist in troubleshooting room pressure and airflow deviations.
• Maintain readings and balancing records.
4. Breakdown Maintenance
• Attend AHU breakdowns and assist in troubleshooting.
• Identify abnormal noise, vibration, temperature, airflow, pressure, and motor-related problems.
• Carry out corrective maintenance under the direction of the HVAC specialist.
• Respond quickly to critical HVAC breakdowns affecting production or cleanroom conditions.
5. Electrical & Control Maintenance
• Carry out basic electrical maintenance of AHU motors, starters, contactors, VFDs, control panels, and associated components.
• Assist in troubleshooting sensors, actuators, control valves, and other HVAC instrumentation.
• Monitor AHU alarms and indications through local HMI/BMS systems where applicable.
6. Documentation & Safety
• Complete PM checklists and maintenance records.
• Record filter cleaning/replacement, equipment parameters, and breakdown activities.
• Follow GMP, EHS, SOP, LOTO, Permit-to-Work, and cleanroom maintenance requirements.
• Use appropriate PPE and safe working practices.
• Maintain good housekeeping in AHU rooms and work areas.
Preferred Technical Experience
Candidates with hands-on experience in AHU/HVAC maintenance from companies such as:
• Blue Star
• Voltas
• ZECO
• Edgetech
• FläktGroup
• Advance Aircon
• Waves
• Other reputed AHU/HVAC service and maintenance organizations
will be preferred.
Required Skills
• Strong hands-on AHU maintenance capability.
• Basic understanding of HVAC and refrigeration systems.
• Knowledge of fans, motors, belts, bearings, filters, coils, dampers, valves, and AHU components.
• Basic understanding of electrical panels and HVAC controls.
• Ability to use basic maintenance and measuring instruments.
• Willingness to work in cleanroom/AHU areas and during breakdown/emergency situations.
• Good safety and GMP awareness.
Key Performance Indicators (KPIs)
• AHU availability and reliability.
• Preventive maintenance compliance.
• Timely completion of filter cleaning/replacement.
• Reduction in AHU breakdowns and downtime.
• Timely resolution of HVAC-related breakdowns.
• Maintaining required room pressure and airflow conditions.
• Reduction in recurring AHU failures.
• Compliance with cleanroom, GMP, safety, and validation requirements.
• Accuracy of AHU maintenance and filter records.
• Successful transition from external AMC to effective in-house AHU maintenance.