Air Handling Units
Air handling units (AHUs) condition, filter, and circulate air for a building's ductwork network, built around a fan, coil, and filter bank inside a common casing. NLS sources AHUs sized for Saudi outdoor air conditions, with filtration stages matched to hospital and clean-environment air-change requirements, for hospital, hotel, and commercial building projects across the Kingdom.
An air handling unit draws in outdoor air, return air, or a mixed-air blend, passes it through a filter bank, conditions it across a cooling or heating coil, and pushes it out through a supply fan into the ductwork. The casing houses these components as one factory-assembled or site-built package, sized by airflow volume in cubic meters per hour and by the coil's cooling or heating duty in kW or tons. Fresh air ratio, static pressure the fan has to overcome across the full duct run, and the filtration stage are the three variables that actually decide unit selection, more than the nameplate airflow figure alone.
Saudi outdoor air conditions push the coil selection harder than most reference climates assume. Summer design dry-bulb and coincident wet-bulb temperatures in the central and eastern provinces mean the cooling coil is conditioning outdoor air that arrives already carrying a high enthalpy load, so coil rows, chilled water flow rate, or DX capacity get sized against the actual local design-day condition rather than a generic temperate-climate default. Dust loading in outdoor air is also higher than many filter media are tested against, which shortens the service interval on the pre-filter stage and argues for a washable or higher-dust-capacity pre-filter ahead of the fine filter bank.
Hospital and clean-environment projects add filtration and air-change requirements on top of the basic cooling duty. A hospital operating theatre or a pharmacy clean room specifies a minimum air changes per hour figure and a filtration stage up to HEPA, which changes the fan's static pressure requirement and the motor sizing alongside the filter cost. NLS sources AHUs across this range, from basic supply-and-return units for office or retail space up to hospital-grade units with HEPA terminal filtration and the higher static pressure fans that filtration stage demands.
Sourcing runs from an airflow and coil schedule. A project's mechanical consultant issues cubic-meter-per-hour airflow, coil duty, static pressure, and filtration class per AHU tag, and NLS returns unit selection and a priced quote in USD, with lead time set by whether the unit is a standard modular configuration or a custom casing size built to fit a specific plant room footprint.
Specifications
- ✓Airflow capacity rated in cubic meters per hour, sized against project static pressure and duct run
- ✓Cooling/heating coil duty sized to Saudi outdoor air design-day dry-bulb and wet-bulb conditions
- ✓Filtration stages from pre-filter through bag filter up to HEPA terminal filtration for clean areas
- ✓Fresh air, return air, and mixed-air damper configurations available
- ✓Hospital-grade configurations sized for specified minimum air changes per hour
- ✓Casing available as standard modular sections or custom-built to plant room footprint
Frequently Asked Questions
Who supplies air handling units for hospital projects in Saudi Arabia?+
NLS sources AHUs sized for the air changes and HEPA filtration levels hospital operating theatres and clean rooms specify, alongside standard commercial units for office and retail space, across Saudi projects.
How does Saudi heat affect air handling unit sizing?+
The cooling coil has to condition outdoor air that arrives at a higher enthalpy load than temperate-climate defaults assume, so coil rows and chilled water or DX capacity are sized against the actual local summer design-day condition, not a generic catalog figure.
What lead time should I expect for AHU delivery in KSA?+
Lead time depends on whether the unit matches a standard modular configuration or needs a custom casing size and filtration stage for a specific plant room. NLS confirms the figure once the airflow, coil, and filtration schedule is set.