Engineering Manager -HVAC

Larsen & Toubro; Chennai District; On-site; INR 600,000 - 900,000; Full time

Job summary

Larsen & Toubro is seeking a skilled HVAC design engineer to prepare and develop air-conditioning, ventilation, and chilled water system designs for commercial, industrial, and metro rail projects.

You will perform heat load calculations, size equipment, and develop detailed drawings. Coordinate with BIM teams, ensure standards compliance, and support construction and commissioning activities as needed.

Qualifications

• Experience in HVAC design for commercial, industrial, and metro rail sectors.
• Ability to perform heat load calculations and equipment sizing.
• Proficiency in creating layouts, schematics, and P&IDs and coordinating with BIM teams.

Responsibilities

• Prepare HVAC system designs for various project types.
• Coordinate with BIM/modeling teams for Revit implementation.
• Ensure compliance with ASHRAE, ISHRAE, NBC, SMACNA, NFPA.

Skills

HVAC design

Heat load calculations

Duct sizing

Revit/BIM coordination

P&IDs drawings

Interdisciplinary coordination

RFIs handling

Clash resolution

Technical specifications

Education

Bachelor's in Mechanical Engineering

Tools

Revit

BIM

Job description

• Prepare and develop HVAC system designs including air-conditioning, ventilation, and chilled water systems for commercial, industrial, and metro rail projects.
• Perform heat load calculations, system selection, and equipment sizing in line with project requirements.
• Design and size ducting, piping, grilles, diffusers, louvers, dampers, valves, and fittings.
• Develop concept, preliminary, and detailed design drawings, including layouts, schematics, single-line diagrams, and P&IDs.
• Coordinate with BIM/modeling teams to ensure accurate implementation of design intent in Revit models and drawings.
• Ensure designs comply with relevant standards and codes such as ASHRAE, ISHRAE, NBC, SMACNA, NFPA, and project-specific guidelines.
• Support interdisciplinary coordination with architectural, electrical, plumbing, fire, and civil teams.
• Review and respond to design comments, RFIs, and technical queries from internal teams, clients, and contractors.
• Assist in clash resolution and design optimization during coordination stages.
• Prepare technical specifications, B.o.Qs, and quantity estimates for HVAC systems.
• Participate in design reviews, technical discussions, and client meetings as required.
• Support site teams during construction, testing, commissioning, and as-built documentation stages.