HVAC DRAFTMAN

A. HVAC Drafting & Drawing Preparation

1. Prepare HVAC layout drawings using AutoCAD.
2. Prepare ducting layouts, piping layouts and equipment layouts.
3. Prepare HVAC shop drawings, working drawings and as-built drawings.
4. Prepare duct fabrication drawings and duct routing details.
5. Prepare chilled water piping, refrigerant piping and drainage layouts.
6. Prepare sections, elevations and equipment installation details.
7. Coordinate HVAC drawings with electrical, plumbing, firefighting and civil departments.
8. Revise drawings according to consultant and client comments.

B. BOQ Preparation & Quantity Estimation

1. Prepare detailed HVAC BOQ based on approved drawings and specifications.
2. Calculate duct quantities (GI ducts, MS ducts, insulation, etc.).
3. Calculate HVAC piping quantities and fittings.
4. Prepare quantities for AHU, FCU, VRF/VRV, split AC and ventilation systems.
5. Calculate quantities of diffusers, grilles, dampers, louvers and other HVAC accessories.
6. Prepare material take-off (MTO) and quantity estimation sheets.
7. Prepare item-wise BOQ with proper descriptions, units and quantities.
8. Verify BOQ quantities with drawings and site requirements.
9. Assist the estimation and purchase departments with material requirements.