Central AC installation in Al Majd

We calculate the thermal load for each zone based on its area, ceiling height, number of external openings, orientation and how it will be used. In Jeddah the sun's effect on west-facing facades is significant, and high humidity goes into the calculation. We choose the unit size after this calculation, not before.

We fabricate round and rectangular ducts in our own workshop from G90 galvanised sheet or aluminium sheet depending on what the project needs. This lets us cut ducts to the exact site dimensions and fit them tightly, avoiding ill-fitting sections that leak air and raise electricity consumption.

We use Mueller copper in runs of up to 30 metres without welded joints, which reduces potential leak points. If a run exceeds that, the survey determines whether the outdoor unit position needs rethinking or whether the refrigerant charge needs adjustment according to the type shown on the unit's nameplate.

Yes, and it is settled at the design stage. Each floor can have its own unit, or the network can be split into zones with dampers and a thermostat in each, so you do not cool the whole upper floor while the family sits in the majlis. We recommend the right option after the load calculation.

Yes, and the roof surface determines what kind of base is needed. For villas we fabricate a raised steel frame that keeps the unit clear of pooled rainwater and allows airflow beneath it. The exact height and angle depend on the roof pitch and the condensate drain position, which the site survey establishes. The aim is to keep the unit level and to prevent vibration movement during operation.

Alrabih calculates the cooling load for each room and designs the ducts and outlets accordingly, ensuring balanced distribution throughout. We test the balance after installation and adjust dampers as needed.

We cannot route ductwork through load-bearing walls. We coordinate with the structural engineer or owner to map the best path in the ceiling, drop ceilings or available cavities, and we visit the site before design.

Yes, we select the unit and compressor size based on the full summer heat load calculation, accounting for insulation and airflow. We confirm the electrical supply can handle the required capacity.

After installation, we test the system at full capacity and check refrigerant pressure, charge and drainage from the outdoor unit. We send you the test report and readings before we finish.