Assistant Manager-HVAC

Lotus Technicals Private Limited; Thane; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Lotus Technicals Private Limited is seeking an experienced HVAC Design Engineer in Thane to lead heat load calculations, AHU zoning, and duct design while coordinating with project teams to meet client requirements.

You will review specifications, guide equipment sizing, manage BOQs, and support FATs with the HVAC team and procurement, ensuring accurate documentation and timely project delivery.

Qualifications

• Design HVAC systems including heat load calculation, AHU zoning, duct design, and BOQ generation.
• Lead and coordinate HVAC and cleanroom engineering teams.
• Strong analytical and problem-solving abilities.
• Excellent leadership, communication, and team management with high ownership.
• Prepare and review Technical Specifications and Datasheets for HVAC systems.
• Good working knowledge of AutoCAD and engineering drawing reviews.
• Fluent in written and spoken English and Hindi.
• Self-motivated and target-oriented.
• Strong documentation, reporting, and technical writing skills.
• Good negotiation and vendor management skills.
• Ability to perform under pressure and meet deadlines.
• Strong problem-solving skills across projects.
• Ability to handle multiple projects with effective prioritization.

Responsibilities

• Study project briefs and suggest changes with design and management teams.
• Agree on HVAC control philosophy and prepare a concept document.
• Support design team on AHU zoning, temperature, and RH requirements for client approval.
• Gather heat load data from projects for estimation.
• Supervise heat load calculations and assist reporting engineers.
• Review and approve utility calculations for HVAC.
• Identify issues in heat load calculations and discuss changes.
• Finalize and approve heat load calculations before equipment sizing.
• Support equipment calculations based on heat load and space programming.
• Review and guide duct calculations and routing drawings.
• Verify HVAC equipment sizing and load calculations before BOQ release.
• Assist and supervise BOQ preparation and approval routing.
• Maintain a technical/commercial database for HVAC equipment.
• Regularly update the database to speed design.
• Review equipment specs before submission to client.
• Prepare technical and commercial comparative statements for equipment selection and procurement.
• Verify design, BOQ, and equipment lists before detailed engineering.
• Coordinate RCP drawings with design teams for final drawings.
• Approve drawings from vendors for HVAC components.
• Assist FAT of HVAC equipment with teams and procurement.
• Supervise and approve detail engineering drawings for site release.
• Assist purchasing for equipment orders and site labor contracts.
• Attend site meetings, identify issues, and mitigate risks.
• Update design/drawings to reflect site conditions.
• Coordinate with DQVC team to maintain project documentation.
• Help DQVC collect documents and remove bottlenecks.
• Prepare as-built drawings with site team and update systems.

Skills

HVAC design

Team leadership

Analytical reasoning

Leadership

Technical specifications

AutoCAD

English & Hindi

Documentation

Vendor management

Problem solving

Time management

Multi-project management

Risk assessment

Tools

AutoCAD

Job description

1. To study the project brief in detail and suggestchanges as per the client’s requirements in coordination with the projectdesign and project management teams.

2. To agree upon the control philosophy of the Heating,Ventilation, and Air Conditioning (HVAC) system and prepare a concept documentfor the same.

3. To support the project design team in working on areazoning, Air Handling Unit (AHU) zoning, temperature, and Relative Humidity (RH)requirements for client approval.

4. To gather data from various departments, namely projects,process, utility, and electrical, for heat load estimation in the assignedprojects.

5. To supervise and analyse the heat load calculationsand support the reporting engineers in completing the task with the requiredaccuracy.

6. To review, verify, and approve utility calculations required for HVAC.

7. To thoroughly review the heat load calculations, identifyany major or minor issues related to client or project team considerations, anddiscuss changes as required.

8. To finalise and approve the heat load calculationsfor the facility before proceeding with HVAC equipment calculations.

9. To support and supervise the equipment calculationsbased on heat load and space programming for the project. This might involve equipmentsuch as, but not limited to, AHUs, cooling and heating coils, ducting, dampers,filter boxes, grilles, diffusers, risers, etc.

10. To review and guide ductcalculations and duct routing drawings.

11. To verify allHVAC equipment sizing and load calculations before allowing to proceed to the Billof Quantities (BOQs).

12. To support, supervise,and check the BOQ prepared by the team members in detail before sending it forfurther approval to the project team and finally to the client.

13. To assist indeveloping and maintaining a technical and commercial database for HVAC equipment.

14. To update thedatabase on a regular basis to reduce the time required for designing.

15. To review and approve equipmenttechnical specifications before submitting them to the project team and client.

16. To prepare technicaland commercial comparative statements for equipment selection and coordinatewith the purchase department for vendor finalization and procurement.

17. To verify thedesign, BOQ, and equipment list before proceeding with detail engineering. Thismay involve checking the heat load calculations again based on actual loads.

18. To supervise thepreparation and coordination of the Reflected Ceiling Plan (RCP) with theproject design team and other departments for the generation of final drawings.

19. To superviseand approve all the drawings and details received from vendors for all HVACcomponents for further processing and manufacturing.

20. To assist in andorganise the Factory Acceptance Test (FAT) of HVAC equipment on a regular basiswith the HVAC team in coordination with the purchase and project managementdepartments.

21. To supervise, verify,and approve all detail engineering contract drawings to be executed at the site,referred to as the “construction drawings release.”

22. To assist the purchaseteam and project management team, where needed, for effective decision-making regardingplacing orders for HVAC equipment and site labour contracts with scope details.

23. To attend thesite meetings for HVAC-related work, proactively identify possible issues,develop mitigation plans, and ensure timely resolution of site-related issues,including duct routing conflicts, equipment placement issues, constructiondrawing discrepancies, and sizing-related issues.

24. To supervise theupdating of the design and drawings on a regular basis to keep the design data upto date as per site conditions and changes.

25. To work incoordination with the Documentation, Qualification, Validation, and Commission(DQVC) team and the HVAC team to ensure project documentation is prepared andmaintained as per the project requirements.

26. To assist theDQVC team in document collection and removing bottlenecks in the documentation process.

27. To supervisethe preparation of as-built drawings in coordination with the site team andensure the updated drawings are maintained in the system.

Requirements

1. Abilityto design HVAC systems independently, including heat load calculation, HVACclassification, AHU zoning, duct design and layout, AHU fan and coil selectionbased on heat load, and BOQ generation.

2. Abilityto lead and coordinate HVAC and cleanroom engineering teams.

3. Stronganalytical and problem-solving abilities.

4. Strong leadership, communication, and team management skills witha high level of ownership and accountability.

5. Capability to prepare andreview Technical Specifications (TS) and Datasheets (DS) for HVAC and cleanroomsystems.

6. Good working knowledge ofAutoCAD and the ability to independently review engineering drawings.

7. Fluentin written and spoken English and Hindi.

8. Self-motivatedand target-oriented.

9. Strongdocumentation, reporting, and technical writing skills.

10. Goodnegotiation and vendor management skills.

11. Abilityto perform under pressure and meet strict deadlines.

12. Strongproblem-solving skills.

13. Abilityto handle multiple projects simultaneously with effective prioritization.

Strongdecision-making and risk assessment abilities.