School HVAC in Al Sahifah

Noise usually comes from high air velocity or an indoor unit mounted on a shared wall between two classrooms. We select units with low sound ratings, calculate air velocity at each outlet to prevent whistling, and insulate duct runs above the suspended ceiling. The exact unit position and diffuser angle are decided during a site survey of each room.

The prayer room needs wide, quiet air distribution at low level above worshippers, which is quite different from a classroom. Corridors need enough cooling to prevent hot air from flowing into classrooms when doors open. We design each zone on its own air circuit with a separate thermostat; the final layout depends on floor area and ceiling height on site.

In most cases, yes. We check the gap between the ceiling and the slab, and how accessible the ceiling void is, before making any decision. We fabricate round or rectangular ducts in our own workshop to match the building's exact dimensions, and we route them to avoid structural columns and penetrations. Where ceiling space is too tight, cassette or concealed units may be the better fit.

A low-mounted unit in a room full of students is easily damaged: fins get bent, the drain port gets blocked, and the fan grille gets broken. We mount units at heights and positions that keep them clear of students, while still delivering cooled air down to the seated zone. The precise position is set after the team measures ceiling height and seating layout in each room.

Large tasks such as running new ductwork or replacing multiple units are scheduled during the long summer break to avoid any disruption to lessons. Routine maintenance and isolated repairs can be arranged outside school hours or at weekends in coordination with school management. Work inside classrooms during the school day requires a site assessment first to confirm it can be done without causing disruption.

Yes, but we must choose the unit carefully. We design a medium-capacity system rather than maximum, and recommend a dedicated circuit for the outdoor unit, which might need 32 amps alone. In some cases, we may advise upgrading the main electrical panel from 63 to 100 amps.

We use flexible ductwork that can bend around tight spaces instead of rigid pipes, routing it through corners and gaps. In very tight situations, we may recommend separate splits instead of one large central system.

Yes, heat from neighbouring shops seeps into the school especially if walls are shared. We slightly increase the AC capacity to offset this extra heat gain, and recommend additional thermal insulation on shared walls.

Old wiring may not handle the high current the outdoor unit draws at startup, causing voltage dips or repeated cutouts. We test the wiring before installation and recommend running a dedicated cable of appropriate gauge from the main electrical panel to the outdoor unit.