Smoke Extraction Fans by EKG M&E Sdn Bhd
In the high-rise commercial and industrial sectors of KL and PJ, smoke extraction fans (also known as Smoke Spill Fans) are the "lungs" of a building's fire safety system. Unlike standard ventilation, these fans are engineered to operate under extreme thermal stress to forcibly remove toxic gases, ensuring a "Clear Layer" for safe evacuation. EKG M&E Sdn Bhd specializes in the design, installation, and BOMBA-compliant maintenance of high-performance smoke extraction solutions.
Engineering for Extreme Heat (Class H)
A smoke extraction fan must remain operational when the air passing through it reaches temperatures that would melt or seize a standard motor.
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High-Temperature Reliability: We utilize fans equipped with Class H motors, certified to operate at 250°C for at least 2 hours. This provides the critical window needed for occupants to flee and for firefighters to enter.
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Axial Flow Performance: For large volumes like shopping malls or basements, we install high-static Axial Fans. These are designed to overcome the resistance of long fire-rated ducting and motorized dampers to maintain the mandatory 10 Air Changes Per Hour (ACH).
The Integration of "Fire Mode" Logic
As an HVAC & Clean Air Specialist, we ensure your extraction fans are "intelligent." We program the Variable Frequency Drives (VFDs) with a mandatory Fire Mode Override.
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Bypassing Internal Protection: In an emergency, the VFD is programmed to ignore standard "trips" (such as over-current or thermal overload). The fan will continue to run at 100% capacity until the fire is suppressed or the motor fails mechanically.
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HVAC Interlock: The moment the smoke extraction fans activate, our control logic triggers a total shutdown of the general office air conditioning. This prevents the AC system from accidentally circulating toxic smoke into clean floors.
System Synchronization: Extraction & Make-Up Air
For a smoke extraction fan to work effectively, it cannot operate in a vacuum. We engineer a balanced "Push-Pull" system:
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Replacement (Make-Up) Air: For every cubic meter of smoke exhausted, a cubic meter of fresh air must enter the building at a low level. We interlock the extraction fans with motorized louvers or supply fans.
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Preventing Negative Pressure: If make-up air is insufficient, the building becomes "negative-pressured," which can suction fire doors shut, trapping occupants inside. Our commissioning process includes Differential Pressure Mapping to ensure doors remain easy to open.
Performance & Compliance Standards
| Feature | Standard Requirement (UBBL) | EKG M&E Installation Standard |
| Air Change Rate | 10 ACH (Smoke Spill). | Verified via Anemometer Traverse. |
| Response Time | Full operation within 60 seconds. | High-speed VFD/Actuator sync. |
| Power Supply | Essential/Genset Backed. | Fire-rated cabling & ATS. |
| Durability | 250°C for 120 Minutes. | Certified Class H/EN 12101-3. |
Why Choose EKG M&E Sdn Bhd?
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Turnkey T&C: We provide the Testing & Commissioning (T&C) reports and "Form G" certifications required for your annual Fire Certificate (FC) renewal.
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Smoke Visualization Testing: We can perform a professional Hot Smoke Test using non-toxic heated smoke to provide visual proof that your fans effectively clear the room and maintain visibility.
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Klang Valley Strategic Support: Based in Kuala Lumpur, we provide on-site audits, professional installation, and 24/7 emergency maintenance for smoke control systems across the Klang Valley.
