In a decoupled chilled water system, the Secondary Chilled Water Pumps are the workhorses that deliver cooling directly to the Air Handling Units (AHUs) and Fan Coil Units (FCUs) across the building. Unlike primary pumps, secondary pumps often operate with Variable Frequency Drives (VFDs) to match the fluctuating cooling demand of tenants. A failure here doesn't just stop one chiller; it can starve an entire wing or floor of cooling. EKG (Malaysia) Sdn Bhd provides specialized repair and optimization for secondary pumping systems, ensuring consistent comfort and hydraulic balance.
High-Rise Office & Residential Towers
Multi-Zonal Shopping Malls & Retail Hubs
Hospital & Healthcare Facility Cooling
Hotels with Variable Occupancy Loads
Industrial Facilities with Diverse Cooling Zones
Flow Inconsistency – Some floors are too cold while others are too warm, often due to pump performance degradation or air-locks.
VFD Communication Errors – The pump fails to ramp up or down correctly in response to sensor data, leading to energy waste.
Mechanical Seal Wear – Constant speed modulation puts unique stress on seal faces, leading to localized leaks.
Differential Pressure (Delta-P) Failure – Inability to maintain the pressure required to push water to the highest or furthest zones.
Bearing Noise – High-speed operation on VFDs can lead to electrical discharge through bearings or mechanical fatigue.
We check the pump against its original design curve. By inspecting the impeller and wear rings, we restore the tight tolerances necessary to maintain the pressure needed for high-rise distribution.
Our technicians don't just fix the pump; we troubleshoot the electronics. We verify that pressure transducers and 2-way valves are communicating correctly with the pump controller to ensure smooth modulation.
We utilize high-grade Silicon Carbide or Tungsten seals that can withstand the thermal expansion and pressure fluctuations inherent in secondary variable-flow loops.
Secondary pumps are often located near occupied spaces. We perform Laser Shaft Alignment to eliminate the vibration and mechanical "hum" that can travel through the building's piping and disturb tenants.
We ensure that non-return valves (check valves) are seating perfectly to prevent backflow and water hammer when secondary pumps cycle on and off.
We verify that the "Secondary Loop" is hydraulically balanced. If one pump is over-performing, it can lead to "Low Delta-T Syndrome," which forces your chillers to work harder and increases your electricity bill.
Hydronic System Experts – We understand how secondary pumps interact with the "Common Bridge" and the primary loop.
ISO-Certified Standards – Our repairs follow strict international codes to ensure safety and long-term mechanical reliability.
Klang Valley & Selangor Support – Rapid response for commercial buildings experiencing "zone-specific" cooling failures.
Sustainability Focus – We optimize your pumping system to reduce carbon footprints and lower monthly utility costs.
Don't let a faulty secondary pump lead to tenant complaints or energy waste. Trust EKG (Malaysia) Sdn Bhd for technical, ISO-certified secondary chilled water pump repair and optimization. Our expert team will ensure every floor of your facility receives the exact cooling it needs.
Is your building experiencing uneven cooling? Contact us now for a free site assessment and a technical quote on your secondary pump repair needs!
More detail about EKG M & E SDN. BHD.
Malaysia
