In the current high-rise landscape of Kuala Lumpur and Selangor, AHU Sectional Assembly & Rigging has become the primary solution for retrofitting occupied Grade-A offices and hospitals. Under the Energy Efficiency and Conservation Act (EECA) 2024, these modular installations must be executed with factory-level precision on-site to ensure the final assembly meets mandatory Building Energy Intensity (BEI) and Specific Fan Power (SFP) targets.
At EKG (Malaysia) SDN BHD, we specialize in the "Digital-to-Physical" transition of sectional units, ensuring they are Sterile, Silent, and Statutory-Compliant.
When an AHU is too large for service lifts or narrow mechanical corridors, we utilize a sectional assembly approach.
Modular Component Transport: We manage the logistics of transporting individual sections (Fan, Coil, Filter, and Mixing Box) through standard building entry points without structural modification.
Airtight Field-Joints: In 2026, a "good enough" seal is a statutory liability. We utilize specialized compression gaskets and internal "over-sealing" techniques to ensure the field-assembled unit maintains Class L1 Casing Leakage standards.
TB2 Thermal Break Continuity: We verify that the thermal break gaskets between sections are perfectly aligned. This prevents thermal bridging and "sweating" at the joints—a common failure point in manual assemblies that leads to mold and JKKP (DOSH) non-compliance.
Rigging sectional units requires a higher level of coordination than single-piece lifts, as each module has a different center of gravity (CoG).
Sequential Hoisting: Modules are rigged and lifted in the exact order of assembly. We utilize LOD 400 BIM path-of-entry simulations to ensure that the "first-in" module does not block the installation path of the subsequent sections.
Frame Protection: We utilize certified spreader beams and edge guards to prevent the rigging slings from deforming the modular frames. Any frame torque during the lift will lead to misaligned joints and permanent air leakage.
Plinth Positioning: Each section is lowered onto its specific segment of the High-Deflection Spring Isolators, ensuring the total weight is balanced across the mounting base for optimal vibration decoupling.
Once the sections are joined, we conduct rigorous position testing to verify the unit is audit-ready:
| Test Phase | Technical Requirement | Engineering Purpose |
| Joint Integrity Test | Ultrasonic Leak Detection | Pinpoints microscopic gaps in field-joints that spike SFP levels. |
| Base Leveling | 1:100 Gradient toward drain | Ensures sterile drainage and prevents stagnant water (JKKP Compliance). |
| Frame Squareness | Laser Alignment | Prevents door-seal failure and internal air bypass around filter banks. |
| Vibration Mapping | NC 30-35 Acoustic Profile | Confirms that the sectional assembly acts as a single, silent mass. |
Following the July 2025 Malaysian BIM Mandate, sectional assemblies must be digitally "certified" on-site.
LOD 500 Digital Twin: We scan the final assembled unit to create a digital record of the field-joints and internal configurations. This serves as the "Digital Birth Certificate" for your mandatory 5-year periodic energy audit.
EECA 2024 Audit Support: We provide the certified assembly and integrity reports required by Registered Energy Managers (REM) to prove the unit meets the building's energy license requirements.
GITA Documentation: Our documented sectional assembly process provides the technical proof needed to claim the 100% Green Investment Tax Allowance.
Technical Integrity: We are mechanical engineers who understand the thermodynamics of modular air treatment.
Zero-Subcontractor Model: We manage the rigging, sectional assembly, and final commissioning internally to ensure no detail of the design intent is lost in transition.
High-Rise Expertise: We specialize in "Impossible Fits," successfully assembling high-efficiency AHUs in the most restricted mechanical rooms in KL.
Is your sectional AHU assembly engineered for 2026 performance or just "bolted together"? Contact EKG (Malaysia) SDN BHD today for a specialized Sectional Assembly & Rigging assessment.
One single relevant follow-up question: Are you planning a sectional assembly for a new development, or is this a retrofit within an existing occupied facility?
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