HVAC Duct Leakage Audit

HVAC Duct Leakage Audit by EKG M&E Sdn Bhd

In 2026, an HVAC Duct Leakage Audit is a specialized engineering assessment required to satisfy the Energy Efficiency and Conservation Act (EECA) 2024 and the DOSH ICOP IAQ 2026. This audit quantifies exactly how much conditioned air is being lost to ceiling plenums and shafts, translating those "invisible leaks" into wasted Ringgit on your TNB bill.

At EKG M&E Sdn Bhd, we conduct these audits to identify "Unaccounted Energy Loss" in your HVAC system, providing the empirical data needed for mandatory annual energy submissions in Kuala Lumpur and Selangor.

1. Audit Methodology: Quantifying the Loss

A professional audit goes beyond a visual check; it uses calibrated instruments to establish a precise Leakage Profile.

• Static Pressure & Airflow Traverses: We use Pitot tubes or thermal anemometers to perform a "duct traverse," measuring velocity at multiple points. By comparing the airflow at the AHU discharge to the sum of the air delivered at the terminal diffusers, we calculate the Net Leakage Volume.

• Calibrated Duct Leakage Testing (DLT): Following DW/143 and SMACNA standards, we isolate and pressurize duct sections. The amount of air required to maintain that pressure is your exact leakage rate.

• Targeting ATC 6: For 2026 compliance, we target Airtightness Class 6 (ATC 6), where leakage must be less than 1% of total flow.

2. The Financial Audit: Translating CFM to RM

In the current Malaysian economic climate, every 1,000 CFM of leaked air carries a specific monthly cost.

• The Fan Power Penalty: Due to the Fan Cube Law, if leaks force your fan to run 10% faster to maintain static pressure, your energy consumption increases by nearly 33%.

• The Chiller Penalty: Leaked air represents "paid-for" cooling that is wasted. Reducing just 500 CFM in a commercial system can lower your TNB Maximum Demand by several kilowatts.

• ROI Calculation: Most leakage reduction projects (utilizing Aerosol Sealing) show a full Return on Investment (ROI) within 12 to 18 months.

3. Regulatory Compliance & IAQ Benefits

The audit provides the "Digital Audit Trail" required for two major Malaysian regulations:

• EECA 2024 Audit Report: The Energy Commission (ST) requires a Registered Energy Auditor (REA) to sign off on your facility's efficiency. Our audit provides the data needed for the Energy Management Improvement Plan.

• DOSH ICOP IAQ 2026: Leaky return ducts "aspire" (suck in) dusty, humid air from ceiling voids. The audit proves your air distribution is hermetic, helping you stay below the mandatory 500 cfu/m³ bacterial ceiling and 1,000 ppm $CO_2$ thresholds.

Performance Matrix: Pre-Audit vs. Post-Audit & Sealing

Why Choose EKG M&E Sdn Bhd?

• 34 Years of Engineering Depth: Based in Kuala Lumpur, we specialize in the specific psychrometric and regulatory challenges of the Malaysian climate.

• Turnkey Reporting: We provide the certified DLT and TAB reports your Registered Energy Manager (REM) needs for ST submissions.

• Advanced Remediation: If the audit identifies significant leaks, we offer Computerized Aerosol Sealing to repair inaccessible ductwork without demolition.

Is your facility's BEI rating at risk due to unaccounted air loss? Contact EKG M&E Sdn Bhd today for a technical duct leakage audit and secure your building's 2026 compliance.

Expert Guide: Are you managing a facility that is currently undergoing its mandatory 3-year energy audit, or are you looking to troubleshoot a specific humidity or "sweating ceiling" issue?