In the 2026 engineering landscape, MS 1525:2024 (the updated Code of Practice on Energy Efficiency and Use of Renewable Energy for Non-Residential Buildings) serves as the technical backbone for the Energy Efficiency and Conservation Act (EECA) 2024. For AHU installations in Malaysia, compliance with MS 1525 is no longer a voluntary "best practice"—it is a mandatory requirement for maintaining a building's Energy Intensity Label and passing statutory energy audits.
At EKG (Malaysia) SDN BHD, our AHU installations are engineered to meet the stringent 2026 benchmarks for thermal comfort, air quality, and ultra-low energy consumption.
Under the current standards, an AHU installation must be calibrated to maintain specific indoor environmental conditions while minimizing energy waste.
Indoor Design Conditions: MS 1525:2024 mandates a dry bulb temperature range of 23°C – 26°C and a relative humidity (RH) of 55% – 70%.
Specific Fan Power (SFP) Limits: The SFP—the ratio of fan power to the volume of air moved—is the most critical metric for compliance. To meet the 2026 "Audit-Ready" status, we ensure your installation achieves an SFP below 1.1 kW/m³/s, significantly exceeding the baseline 1.6 kW/m³/s requirement.
Outside Air Intake: We engineer the AHU to deliver the minimum outdoor air rates specified in MS 1525 to ensure CO2 levels remain within healthy limits (typically $< 1,000 \text{ ppm}$) without excessive thermal load.
To meet these standards in Malaysia's tropical climate, EKG utilizes a "High-Efficiency Interface" between mechanical and digital systems.
| Component | MS 1525 Requirement | EKG Implementation |
| Fan System | High-efficiency motor/drive. | IE5 EC Fan Walls with modular redundancy. |
| Control System | Automated energy management. | EnMS-Integrated DDC controllers with BACnet. |
| Cooling Coil | Moisture removal effectiveness. | High-surface-area coils paired with PICV valve trains. |
| IAQ Monitoring | Real-time air quality tracking. | CO2-driven Demand Control Ventilation (DCV). |
MS 1525 compliance also encompasses the physical integrity of the unit to prevent energy loss and health risks.
TB2 Thermal Break Casing: We utilize TB2-rated double-skin panels to prevent external "sweating."
Acoustic Isolation: To meet the "Silent Office" standard (typically NC 30-35) as referenced in MS 1525, we utilize inertia bases and spring isolators to decouple mechanical vibration from the building structure.
Hygienic Drain Pans: Multi-sloped SUS 304/316 stainless steel drain pans ensure zero stagnant water, fulfilling the sterile air requirements for Grade-A developments.
Following the July 2025 Malaysian BIM Mandate, all MS 1525-compliant AHU installations for major projects must be documented digitally.
LOD 400 Digital Twins: We provide high-fidelity 3D models containing the unit’s serial numbers, performance curves, and maintenance schedules.
Verified Commissioning: Our T&C reports provide the "As-Commissioned" power and airflow data required for your Registered Energy Manager (REM) to submit annual efficiency reports to the Energy Commission (ST).
GITA Support: EKG provides the auditable trail needed to claim the 100% Green Investment Tax Allowance on qualifying energy-efficient equipment.
Technical Integrity: We are mechanical engineers who specialize in the thermodynamics of tropical air treatment.
Compliance Experts: We understand the interface between the EECA 2024 and the technical specifics of MS 1525.
Zero-Subcontractor Execution: We manage the full engineering and commissioning cycle internally to ensure your building's energy rating is never compromised.
Is your facility's AHU infrastructure prepared for the 2026 energy and indoor air quality audits? Contact EKG (Malaysia) SDN BHD today for a specialized MS 1525 Compliance Audit.
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