Shaik zia Ur rahman

Key Responsibilities & Expertise:

1.Installation & Commissioning:

• Installed and commissioned HVAC systems, including chillers, air handling units (AHUs), and cooling towers.

2.Chiller System Maintenance & Repair:

• Performed preventive and corrective maintenance on centrifugal, screw, and reciprocating chillers.
• Diagnosed system malfunctions and conducted repairs to restore peak efficiency.

3. HVAC Troubleshooting & Diagnostics:

• Used refrigeration cycle analysis, leak detection tools, and electrical testing equipment to identify faults.
• Adjusted refrigerant levels, replaced faulty compressors, and repaired control panels.

4. Ductwork & Ventilation Systems:

• Installed and maintained duct systems, dampers, and air distribution components.
• Ensured proper airflow and pressure balancing for optimal system efficiency.

5. Refrigerant Handling & Energy Efficiency Optimization:
Recovered, recharged, and monitored refrigerants following EPA and ASHRAE standards.
Implemented energy-saving strategies to enhance HVAC system efficiency.

6. Revit MEP HVAC Design & BIM Coordination:
Designed and drafted HVAC systems using Revit MEP.
Created ductwork layouts, piping schematics, and airflow analysis.
Integrated HVAC designs with BIM coordination for large-scale commercial projects.

6. Safety & Compliance:
Followed OSHA and NFPA safety protocols in high-rise and industrial environments.
Conducted risk assessments and ensured compliance with HVAC industry standards.

8. Team Collaboration & Client Interaction:
Worked closely with engineers, project managers, and facility teams to ensure seamless operations.
Provided technical support, training, and client consultations for system improvements.

Mechanical Technician | Dalkia US Chiller Services

• Installation, maintenance, and repair of chillers, AHUs, cooling towers, and pumps.
• Troubleshooting and diagnosing mechanical faults in HVAC systems.
• Piping, valve, and pump system maintenance for HVAC applications.
• Ductwork fabrication, installation, and airflow balancing.
• Bearings, motors, compressors, and coupling repairs.
• Preventive maintenance to enhance system efficiency and reduce downtime.
• Adherence to OSHA, NFPA, and HVAC safety standards.
• Coordination with engineers and technicians for smooth operations.

Heating And Air Conditioning Engineer

• Design, installation, and maintenance of HVAC systems for commercial and residential buildings.
• Load calculations and energy efficiency optimization for heating and cooling systems.
• Chiller, AHU, and ventilation system design and troubleshooting.
• Ductwork and piping layout design using Revit MEP and AutoCAD.
• System diagnostics, performance analysis, and fault detection.
• Refrigerant management and compliance with HVAC industry standards.
• Integration of HVAC systems with Building Management Systems (BMS).
• Coordination with architects, mechanical teams, and project managers.