Placing HVAC Units

In the 2026 engineering and regulatory landscape, Placing HVAC Units is a high-precision discipline. Since the full enforcement of the Energy Efficiency and Conservation Act (EECA) 2024 and the updated MS 1525:2024 standards, unit placement is a statutory requirement to ensure building performance targets are met.

At EKG (Malaysia) SDN BHD, we approach unit placement as a "Digital-to-Physical" transition, ensuring every installation is Sterile, Silent, and Statutory-Compliant.

1. The Engineering Logic of Strategic Placement

Correct placement is the primary defense against "System Effect" losses—aerodynamic inefficiencies that occur when air cannot enter or exit the unit smoothly.

• Laminar Flow Entry: We position the AHU to allow for a straight duct run at the discharge. Immediate 90-degree bends at the outlet cause air turbulence, which spikes the Specific Fan Power (SFP) and can push the unit above the legal 1.1 kW/m³/s limit.

• Acoustic Decoupling: We utilize LOD 400 BIM data to place units away from sensitive "Quiet Zones" (e.g., executive boardrooms). By placing the unit on an engineered Inertia Base and High-Deflection Spring Isolators, we achieve the premium NC 30-35 noise profile required for Grade-A offices.

• Thermal Break Integrity: Placement must account for ambient conditions. For rooftop units, we ensure the TB2 Thermal Break casing is not in direct contact with heat-absorbing structural steel, preventing "sweating" and mold.

2. Statutory Clearance & Maintenance Compliance

Under MS 1525:2024, an HVAC unit that is "boxed in" is a non-compliant asset. Placement must include mandatory Maintenance Clearance Zones to ensure the unit remains auditable.

3. Outdoor Condenser Placement (Heat Rejection)

For VRF or split-system condensers, placement is critical to prevent "Short-Circuiting," where the unit re-inhales its own hot exhaust air.

• Prevailing Wind Alignment: We align condensers to work with, not against, the prevailing wind direction in the Klang Valley to assist heat rejection.

• Vertical Clearance: We ensure a minimum of 2000mm of clear vertical space above top-discharge units to prevent heat traps under roof overhangs.

• Multi-Unit Spacing: When placing "banks" of condensers, we maintain calculated intervals to prevent a cumulative "Heat Island" effect from degrading the COP (Coefficient of Performance) of the inner units.

4. Why Partner with EKG (Malaysia) SDN BHD?

• Technical Integrity: Our placement is overseen by mechanical engineers who understand the thermodynamics of tropical air treatment and the implications of the EECA 2024.

• Zero-Subcontractor Execution: We manage the rigging, placement, and mechanical testing internally to ensure the design intent is never compromised.

• GITA Support: Our documented placement reports serve as the technical proof needed for your business to claim the 100% Green Investment Tax Allowance.

Is your HVAC placement a performance asset or a statutory liability? Contact EKG (Malaysia) SDN BHD today for a specialized Unit Placement and Mechanical Position Audit.

Are you currently designing a plant room for a new development or retrofitting units into an existing facility?