In the precision-driven sectors of semiconductor manufacturing, pharmaceuticals, and biotechnology, a Cleanroom AHU is the primary engine for environmental control. These systems must maintain ultra-low particle counts while providing rigorous control over temperature, humidity, and room pressure. Under the Energy Efficiency and Conservation Act (EECA) 2024, the challenge is delivering the high static pressure required by HEPA filtration without exceeding mandatory Building Energy Intensity (BEI) limits.
At EKG (Malaysia) SDN BHD, we engineer Cleanroom AHUs to meet ISO 14644 standards (Class 1 through Class 9) while optimizing the Specific Fan Power (SFP) for 2026 compliance.
Cleanrooms require significantly higher air change rates (ACR) than standard offices. The AHU must be capable of overcoming the high resistance of multi-stage filtration.
Primary/Secondary Stage (G4 + F9): These capture the bulk of atmospheric dust to prevent premature loading of expensive final filters.
Terminal HEPA/ULPA Stage: For ISO Class 5 and above, we utilize H14 HEPA or U15 ULPA filters. These are often integrated into the AHU discharge or placed at the room ceiling level to ensure a Laminar Flow of sterile air.
IE5 EC Fan Wall Technology: We utilize modular EC Fan Arrays to generate the necessary static pressure (often 1,000 Pa to 2,000 Pa). These arrays are 30% more efficient than single-fan systems and provide the N+1 redundancy critical for 24/7 cleanroom operations.
Many cleanroom processes (like wafer fabrication) are extremely sensitive to moisture.
Desiccant Dehumidification: When the required Relative Humidity (RH) is below 40%, we integrate active Desiccant Cooling Wheels into the layout. This allows for moisture removal far beyond what a standard cooling coil can achieve.
Reheat Optimization: To prevent over-cooling while dehumidifying, we utilize Waste Heat Recovery loops or high-precision electric reheat coils to maintain the target room temperature within $\pm 0.1^{\circ}\text$.
A Cleanroom AHU must not become a source of outgassing or particle generation itself.
SUS 304/316 Internal Lining: All internal surfaces are medical-grade stainless steel. This non-porous finish prevents biofilm accumulation and withstands aggressive cleaning agents.
TB2 Thermal Break Casing: In Malaysia’s tropical humidity, "sweating" is a contamination risk. Our TB2 casing physically decouples the inner and outer skins, ensuring the unit stays dry and biologically inert.
L1-Class Airtightness: To maintain the pressure regime (Positive/Negative), the casing must be airtight. Our L1 construction ensures zero leakage, protecting the cleanroom's pressure integrity.
| Metric | Standard Industrial AHU | EKG Cleanroom AHU |
| ISO 14644 Class | N/A | ISO Class 1 - 9 Compliant |
| Filtration | G4 / F7 | G4 + F9 + H14 HEPA / U15 ULPA |
| Internal Finish | Galvanized Steel | SUS 304 Stainless Steel |
| Static Pressure | 250 - 500 Pa | 1,000 - 2,500 Pa |
| Humidity Control | General ($\pm 10\%$) | Precision ($\pm 1\% - 2\%$) |
| SFP (kW/m³/s) | 1.8 - 2.5 | Optimized for Low BEI (< 1.1) |
Cleanroom mechanical rooms are often high-density zones. We use 3D BIM Coordination to resolve the following:
Laminar Flow Transitions: We engineer straight-path duct connections to reduce turbulence, which lowers the work the fan array must perform and stabilizes the air-change rate.
Maintenance Withdrawal Zones: We model the exact space needed for filter bank swaps and coil cleaning, ensuring the unit remains high-performing throughout its lifecycle to meet EECA 2024 audits.
Technical Integrity: We provide the Validation Documentation (IQ/OQ) and SFP Reports required for both ISO certification and statutory energy audits.
Precision Engineering: Our systems are designed for the most sensitive manufacturing processes, ensuring zero downtime and maximum yield.
BOMBA-Compliant Safety: All materials, including high-performance seals and acoustic liners, are fire-rated (Class 0 or B1).
Is your cleanroom infrastructure prepared for 2026's energy and purity standards? Contact EKG (Malaysia) SDN BHD today. We specialize in engineering Cleanroom AHUs that are silent, sterile, and ultra-efficient.
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