EP_HVAC

Tagline: All-in-One HVAC Automation: Sizing, Tonnage Calculation, and 2D Drafting.

Detailed Description

EP_HVAC is a comprehensive productivity suite designed for HVAC engineers and MEP drafters. It bridges the gap between engineering calculations and CAD drafting by integrating smart calculation logic directly into the Autodesk® AutoCAD® environment.

From calculating cooling loads based on floor area to automating complex double-line ducting and transitions, EP_HVAC eliminates repetitive tasks, reduces human error, and accelerates project delivery by up to 60%.

 

Key Specialized Modules

 

Smart Engineering Calculators

 

• ACA (Area-Based Tonnage): Automatically scans room boundaries (polylines on the "HAP" layer) to calculate and label the required AC tonnage based on floor area.
• ACV (Volume-Based Tonnage): Advanced load calculation using Area × Height. Generates detailed reports including area (sq. m), volume (cu. m), and tonnage.
• DCAL (Airflow Sizer): A dedicated engineering suite for CFM/LPS sizing with automated unit scaling and labeling.
• SUM: Instantly totals multiple numeric airflow or tonnage labels to verify branch totals.
• Dynamic Ducting (DD & MD): Draw continuous parallel duct runs or convert existing polylines into fully labeled double-line duct systems instantly.
• Smart Elbows (E4 & E1): Automatically calculate radii and generate elbows by window-selecting four lines, or use manual four-point placement for custom angles.
• Advanced Branching (BBB, D2E & DTE): Create shoe branches with integrated VCD dampers, same-side double elbows, or symmetric Y-splits with a single command.
• Transitions (RD & RDY): Draw symmetric or flat-on-one-side reducers and specialized Y-fittings for tight ceiling spaces.
• FLX (Flex-Duct Generator): Converts any path into a high-detail, realistic flexible duct pattern with customizable diameters through a dedicated user interface.
• ECP (End Cap): A one-click solution to close duct ends and automatically extend lines for a perfectly square finish.
• VCD (Volume Control Damper): Automatically inserts and scales VCD blocks to match the exact width of your ductwork.
• CC & CUT: Use rectangular selections or fence lines to trim everything in their path, making it easy to clean up complex junctions and crossings.

Click the Help button within the EP_HVAC dialog box to open the online documentation, which includes detailed command guides and animated GIF demonstrations.

 

Technical Specifications

• Interface: Features a modern, user-friendly DCL (Dialog Control Language) interface for parameter input.
• Compatibility: Optimized for AutoCAD 2021–2027.

 

About the Developer

Created by Sreekanth Kadungil, an engineer and developer dedicated to combining engineering logic with CAD automation. Based in India and the UAE, Sreekanth focuses on developing high-efficiency tools for the global MEP community.