Senior Draughtsman

Hvax Technologies; Mumbai; On-site; INR 600,000 - 900,000; Full time

Job summary

Hvax Technologies in Mumbai seeks an experienced HVAC Draftsman to design and detail complete HVAC systems, including duct layouts and VRV considerations. You will ensure accurate, shop-ready drawings and coordinate with multiple services to avoid clashes.

The role requires site verification, BOQ support, and collaboration with consultants for approvals and fabrication documentation. Proficiency in AutoCAD and duct standards is essential.

Qualifications

• HVAC drafting and design know-how with AutoCAD is essential.
• Familiarity with ductwork standards, zoning, airflow and pressure concepts.
• Ability to coordinate across MEP, electrical and civil disciplines.

Responsibilities

• Design and detail complete HVAC systems including duct layouts.
• Create zoning layouts for efficient air distribution and temperature control.
• As-Built drawings reflecting site verifications and revisions.
• Develop BOQs to support estimation and procurement.
• Create RCPs with HEPA filters, lights and diffusers per data sheets.
• Produce fabrication-ready drawings with accurate quantities.
• Coordinate with clients and consultants for reviews and revisions.
• Conduct site measurements to verify layouts and adjust drawings.

Skills

HVAC drafting

AutoCAD

Ductwork standards

Airflow distribution

Zoning

Coordination across MEP

Drawing precision

Communication

Time management

Education

B.E or Diploma in Mechanical Engineering or Draughtsman

AutoCAD HVAC software certification

Tools

AutoCAD

Job description

To support the design and project teams by producing accurate HVAC drawings including ductwork, VRV systems, RCP layouts, and detailed sections. The draughtsman ensures precise site-based coordination with other services, contributes to BOQ preparation, and provides drawing documentation necessary for consultant approvals, fabrication, and on-site execution.

1. HVAC Design & Drafting

• a) Design and detail complete HVAC systems including duct layouts with airflow and pressure considerations.
• b) Create zoning layouts for efficient air distribution and temperature control.

2. As-Built & Section Drawings As Per Site Mark-Up and Against Physical Verification at Site.

• a) Prepare and update As-Built drawings reflecting actual site implementation.
• b) Develop detailed sectional drawings to assist in installation and compliance.

3. BOQ & Estimation Support

Generate accurate Bills of Quantities (BOQs) for HVAC systems to support estimation and procurement.

4. RCP & Room Data Integration

Create Reflected Ceiling Plans (RCPs) incorporating HEPA filters, risers, light fixtures, diffusers, and grilles based on room data sheets.

5. Detail Drawing Development

Produce typical HVAC detail drawings including: HEPA units, duct constructions, heater plenums volume and fire dampers, switches, sockets, Grilles/diffusers, and Magnehelic gauge locations

6. VRV System & Drain Layouts

Develop piping layouts for VRV systems and associated condensate drain systems.

7. Client & Consultant Coordination

Attend client and consultant meetings to review drawings, gather feedback, and implement technical revisions.

8. Site Measurement & Validation

Conduct on-site measurements for HVAC and related systems to verify layout accuracy and adjust drawings accordingly.

9. Multidisciplinary Coordination

Coordinate HVAC layout with electrical, cleanroom partitions, and other MEP services to avoid clashes.

10. Fabrication Drawing Preparation Review

Create fabrication-ready drawings for ducting systems and cleanroom elements with accurate quantification and measurements for approval.

Educational Qualifications:

• B.E or Diploma in Mechanical Engineering or Draughtsman.
• Certification in AutoCAD or relevant HVAC design software preferred.

Experience:

• 5-7 years of experience in HVAC drafting within MEP, cleanroom, or industrial projects.
• Proven ability to prepare working drawings, site-based revisions, and consultant-approved documentation.

Skills:

• Proficient in HVAC design and drafting using AutoCAD.
• Strong knowledge of ductwork standards, airflow distribution, zoning, and pressure classification.
• Ability to coordinate across disciplines (MEP, electrical, civil).
• Keen attention to technical detail and drawing precision.
• Effective communication and time management skills.