AHU maintenance in Al Shama'il

AHU servicing focuses on the mechanical and thermal parts inside the unit itself: filters, coil, drain pan, bearings and dampers. Duct cleaning removes dust from the distribution network. The two jobs use different tools and address different problems, and we offer each as a separate service.

In many cases yes, depending on the system layout and the number of units. If the building can run a standby unit while we work on another, servicing continues without cutting cooling to any zone. The technician confirms this at the first survey.

High humidity loads the dehumidification coil harder and speeds up algae growth in the drain pan, blocking the drain much faster than in dry climates. For that reason we give the pan clean and the drain fall check particular attention when servicing AHUs in Jeddah.

If a bearing shows audible grinding, measurable heat on the housing or radial play when checked by hand, greasing will not fix it. We measure and inspect on site and decide the right action there, because bearing type and size vary from one unit to another.

Continuous vibration with a steady hum usually points to an unbalanced fan wheel or dirt build-up on the blades, while an irregular grating sound comes from the bearing itself. The technician measures vibration on the frame and on the shaft; if it is higher on the frame he balances the wheel, and if it is higher on the shaft he inspects the bearing and decides whether to replace it or lubricate it depending on the degree of wear.

Each large complex relies on two or more AHUs, each handling separate wings or towers. Complex damper and ductwork systems distribute air evenly, but bearing or belt failure causes uneven cooling and humidity between wings.

Most complexes have a large plant room on ground or roof, some with a secondary plant room mid-building. We need prior coordination with the complex management for safe access and equipment unloading without disrupting residents.

Yes, coastal humidity causes dirt and mould to build up on cooling coils and drains, cutting the unit's ability to dehumidify air. Regular coil cleaning and drain maintenance are essential to prevent moisture accumulation in ducts and the unit itself.

Yes, powerful cleaning and suction equipment draws heavy current, so we need the complex to arrange safe power connection and prevent other building circuits from tripping during work.