In the 2026 Malaysian regulatory framework, MS 1472:2017 (and its subsequent 2026 enforcement updates) remains the definitive Code of Practice for Smoke Control in Protected Escape Routes using Pressurisation. Under the Fire Services Regulations 2026, which came into operation on February 3, 2026, compliance with MS 1472 is mandatory for any Air Handling Unit (AHU) or mechanical ventilation system that interacts with a building’s life-safety pressurisation zones.
At EKG (Malaysia) SDN BHD, we ensure that your HVAC design is fully integrated with MS 1472 protocols to ensure escape routes remain Sterile, Silent, and Statutory-Compliant.
The fundamental principle of MS 1472 is to create a pressure gradient that prevents smoke from entering protected staircases, lobbies, and corridors.
Positive Pressure: The system must maintain a higher pressure in the protected escape route relative to the fire zone (typically 50 Pascals for staircases).
Airflow Velocity: When an escape door is opened, the system must provide a minimum airflow velocity (usually 1.0 m/s) across the doorway to "push" smoke back into the fire area.
AHU Interaction: Standard AHUs must be interlocked to trigger an Automatic Fire Signal AHU Shut-off in the fire zone to prevent air turbulence from disrupting these critical pressure differentials.
Under MS 1472 and the 2026 BOMBA mandates, the AHU serves as a secondary containment device during a fire.
| Requirement | MS 1472 / UBBL 2026 Standard | Engineering Purpose |
| Detection Link | Duct Smoke Detectors in return air. | Triggers localized shut-off before smoke recirculates. |
| Interlock Logic | Hard-wired to the FAMS panel. | Bypasses BMS software to ensure fail-safe motor stop. |
| Damper Status | MS 558 Certified Fire Dampers. | Seals duct penetrations to maintain compartment integrity. |
| Fan Response | IE5 EC Fan Wall stop < 5 seconds. | Prevents fan-driven smoke spread through the plenum. |
MS 1472 defines how air supply units (often specialized AHUs) must operate based on building use:
Single-Stage System: Operates only during an emergency.
Two-Stage System: Operates at a low level for normal ventilation (to satisfy EECA 2024 energy targets) and ramps up to high-pressure mode during a fire signal.
Leakage Management: Engineers must account for "leakage areas" (doors, lift shafts, and floor gaps) to ensure the AHU can maintain the required pressure even as occupants evacuate.
To obtain the AHU Safety Permit required by BOMBA in 2026, the MS 1472 system must pass a physical witness test:
Pressure Differential Test: We use digital manometers to verify that the protected stairwell maintains a consistent pressure against the accommodation area.
Door Opening Force: Verification that the pressurisation is not so high that it prevents occupants (including children or the elderly) from opening exit doors (typically limited to 110 Newtons).
Digital Twin Handover: Commissioning logs are uploaded to the building’s LOD 500 Digital Birth Certificate to satisfy the mandatory 5-year periodic audit cycle.
Technical Integrity: Our MS 1472 solutions are designed by mechanical specialists who understand the complex relationship between comfort HVAC and fire-life safety.
BOMBA Submission: We handle the entire BOMBA Form B and G8/G9 documentation process, ensuring your project meets the KL/Selangor statutory deadlines.
GITA Support: Documentation of MS 1472 compliance is a prerequisite for claiming the 100% Green Investment Tax Allowance on high-performance ventilation assets.
Is your pressurisation system and AHU interlock compliant with the 2026 MS 1472 standards? Contact EKG (Malaysia) SDN BHD today for a specialized Statutory MS 1472 Audit & Design Review.
Are you designing a pressurisation system for a new high-rise project or conducting a fire-safety upgrade for an existing commercial tower?
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