In the modern corporate offices and high-occupancy venues of KL and Selangor, air quality is directly linked to productivity and energy costs. EKG M&E Sdn Bhd specializes in Carbon Dioxide (CO2) Sensor Integration, a core component of Demand Controlled Ventilation (DCV). By monitoring real-time occupancy levels, we ensure your building "breathes" only as much as it needs to, saving significant operational costs.
In a sealed air-conditioned environment, CO2 levels rise as people breathe. High CO2 (above 1,000 ppm) leads to "stuffy" air, drowsiness, and reduced cognitive function.
Real-Time Monitoring: We install high-precision NDIR (Non-Dispersive Infrared) sensors in return air ducts or at breathing zones in meeting rooms and auditoriums.
Dynamic Fresh Air Adjustment: Instead of running fresh air fans at 100% all day, the sensors tell the Building Management System (BMS) exactly how many people are in the room based on the CO2 concentration.
The "Setpoint" Logic: We typically calibrate systems to maintain CO2 levels between 600 ppm and 800 ppm. If the level hits the threshold, the system automatically ramps up the intake.
As an HVAC and Clean Air Specialist, we ensure the "brain" (the sensor) is perfectly connected to the "muscles" (the fans).
The CO2 sensor sends a 0-10V or 4-20mA signal to the Variable Frequency Drive (VFD).
Low Occupancy: The VFD slows the fan motor to a "Setback" speed (e.g., 20Hz), reducing TNB electricity consumption by up to 30%.
Peak Occupancy: During a full meeting or event, the VFD ramps the fan to 50Hz to ensure a high Air Change Rate (ACR).
In multi-zone buildings, we use CO2 sensors to modulate Motorized Dampers. This allows the system to divert fresh air only to the occupied "Active Zones" while restricting flow to empty "Idle Zones."
| Parameter | Traditional Fixed Ventilation | EKG M&E CO2 Integrated System |
| Air Quality | Can be "stuffy" during peaks. | Optimized 24/7 (600-800 ppm). |
| Energy Waste | High (Cooling air for empty rooms). | Low (Ventilation matches demand). |
| Filter Life | Short (Constant dust intake). | Extended (Less air processed). |
| Compliance | Basic ASHRAE 62.1. | Advanced GBI / LEED Standard. |
Airflow Balancing and Commissioning: We don't just "install a sensor." We perform a full Airflow Audit to ensure that when the sensor calls for more air, the ductwork and fans can actually deliver the required volume to that specific zone.
Smart Building Fresh Air Intake: We ensure your CO2 logic is balanced with Building Pressure Management. We prevent the system from creating "Negative Pressure" when the exhaust fans are running but the fresh air intake is ramped down.
Klang Valley Strategic Support: Based in Kuala Lumpur, we provide on-site sensor calibration, VFD programming, and annual IAQ audits for corporate headquarters and industrial facilities.
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