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AHU Casing Leakage & Thermal Bridging
AHU casing leakage and thermal bridging can reduce delivered airflow, increase fan and cooling energy, create condensation risk, and affect comfort. This article explains the causes, performance impact, inspection points, and practical ways to improve AHU casing performance.
nexoradesign.net
Aug 81 min read


UV-C Systems Inside AHUs: Design Benefits and Limitations
UV-C systems inside AHUs can help keep cooling coils, drain pans, and wet surfaces cleaner by reducing biofilm and microbial growth. This article explains the design benefits, correct installation locations, BMS points, safety requirements, maintenance needs, and key limitations engineers must consider.
nexoradesign.net
Aug 81 min read


How Dirty Filters Change Airflow, Fan Power and Cooling Capacity
Dirty filters are more than a maintenance issue. They increase pressure drop, reduce airflow, affect fan power, lower cooling capacity and can cause humidity, DX coil freezing and low delta-T problems in HVAC systems.
nexoradesign.net
Aug 51 min read


How to Calculate the Correct Condensate Trap for Negative-Pressure AHUs
Correct condensate trap sizing is essential for negative-pressure AHUs. This guide explains how to convert static pressure, calculate trap depth, size H1 and H2, avoid drainage failure, and prevent AHU water leakage during operation.
nexoradesign.net
Aug 52 min read


AHU Drain-Pan Design: Slope, Trap Depth and Overflow Protection
AHU drain-pan design is critical for preventing leakage, standing water, corrosion, bad odor, and water carryover. This guide explains drain-pan slope, condensate trap depth, overflow protection, float switches, drain sizing, and commissioning checks for reliable HVAC operation.
nexoradesign.net
Aug 41 min read


Air Handling Unit (AHU): Components and Working Principle
An Air Handling Unit (AHU) is a key component of HVAC systems that conditions and circulates air within buildings. It consists of components such as filters, coils, fans, and dampers that clean, heat or cool, and distribute air through duct systems. AHUs help maintain indoor air quality, temperature, and humidity for comfortable and healthy indoor environments.
nexoradesign.net
Mar 116 min read
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