Chiller and AHU installation
Chiller & AHU installation in Al Ain Al Aziziyah
In Al Ain Al Aziziyah, central Jeddah, large residential and administrative complexes require carefully installed chiller and AHU systems to keep residents and staff comfortable. Alrabih mounts each unit on vibration isolators, fully insulates the pipework, and commissions the system before handing over.
- Vibration isolation
- Aluminium cladding
- Full commissioning
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When you need this installation
- 1
A new commercial or government building
The building is ready but the central cooling plant is not yet installed. You need a team to lift the chiller to the roof, prepare the bases and run chilled water pipework to AHUs on every floor.
- 2
An existing unit vibrates and makes noise
Constant vibration loosens pipe joints and fatigues mechanical components. If the unit is not sitting on proper vibration isolators, that is corrected during reinstallation; the site survey determines which isolator type is needed.
- 3
Extending an existing building
Adding floors or new areas means extra AHUs and extending the chilled water network. We connect the extension to the existing plant after verifying the current chiller capacity, which the site study determines.
Who it's for
Building a hospital or hotel that needs a central cooling plant
We visit the site before the building is complete to plan pipe routes and the plant room, then lift the chiller, mount AHUs on every floor and commission the full system.
Ask on WhatsAppReplaced an old chiller but connections do not match
We survey the new chiller and existing pipework, fabricate any transition pieces needed in our workshop, then reconnect and pressure-test the network before start-up.
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What the installation covers
- Chiller lifted onto isolated base
- Chilled pipework run and insulated
- Aluminium cladding of pipework
- AHUs mounted and duct-connected
- Pressure test and commissioning
How we work
How we work
- 1
Site survey and design
We visit the site to measure the plant room or roof, check pipe and duct routes, and determine lifting requirements and the right vibration isolator type for the building.
- 2
Base preparation and lifting
We prepare the chiller and AHU bases, fix the vibration isolators, lift the units into final position and check they are level before any connections are made.
- 3
Pipework and ductwork
We run the chilled water pipes, insulate them and clad them in aluminium sheet to resist Jeddah's humid salty air, then connect each AHU to its duct network.
- 4
Pressure test and commissioning
We pressure-test the pipework to confirm there are no leaks, then run the full system, measure air conditions at each AHU and adjust dampers until the required air distribution is achieved.
Considered installation or a rushed one?
| Alrabih | The usual way | |
|---|---|---|
| Chiller base | Isolators matched to the site | Bolted straight to concrete |
| Pipe insulation | Full insulation with aluminium cladding | Partial or left bare |
| Pipe test | Pressure test before start-up | Started without testing |
| Air balancing | Measured and dampers adjusted | Unbalanced airflow |
| Transition pieces | Fabricated in our own workshop | Improvised or ill-fitting |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and maintenance.
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Some of our work
Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.
Customer reviews
What our customers say
- Muhammadramzan 2641
“MashaaAllah. Services are so good. Behaviour and kindness 100/100. Prices are less then Market. Fully recommended”
- shahzeb armani
“Wow. Prices are so comfortable. Outstanding services. People are so talented and nice”
- Tawfik AlyawerLocal Guide
“U can find all u need for air conditioning”
Your satisfaction matters to us! If you had a great experience with us, we'd love a 5-star rating and a kind review.
Worked with us? Leave a reviewService areas
We come to you anywhere in Jeddah
From Al Shiraa and Al Yaqout in the north to Al Thaghr and Al Quraiyat in the south, with our base in Al Aziziyah.
What sets this district apart
Al Ain Al Aziziyah holds large residential projects and administrative complexes with wide layouts and multiple floors, requiring large-capacity and reliable central cooling systems. Installing a chiller and air distribution network in these projects demands careful planning to avoid vibration, keep chilled pipes well insulated against heat loss and moisture, and coordinate with project management, contractors and early residents to avoid delaying other work.
Al Ain Al Aziziyah sits in central Jeddah and is known for large multi-storey residential and administrative projects.
Most large projects in Al Ain Al Aziziyah use central chillers sized 30 to 150 tonnes, placed in dedicated plant rooms away from living spaces.
The AC setup in Al Ain Al Aziziyah
- 1
Central chiller in a dedicated plant room
Large Al Ain Al Aziziyah projects dedicate a full plant room to the chiller, pumps and controls for easy maintenance and operation.
- 2
Air distribution network covering all floors and zones
AHU units are distributed across floors and connected to extensive ductwork delivering cool air to every zone and apartment.
- 3
Heavily insulated pipework with full moisture protection
All chilled pipes are wrapped in thick insulation and aluminium for complete protection against Jeddah's high humidity condensation.
Before the visit
Before our visit in Al Ain Al Aziziyah
- 1
Provide engineering drawings and available electrical capacity
Send final drawings and confirm the available electrical load capacity for the chiller and AHU units.
- 2
Confirm plant room location and access routes
Tell us the plant room location and which doors and corridors can accommodate delivery of heavy equipment.
- 3
Confirm structural supports are complete
Check that all support points for the chiller and ducts are ready and that suspended ceilings in duct routing areas are finished.
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FAQ
Questions about Chiller & AHU installation
How is the chiller unit lifted to the roof?
The method depends on the chiller weight, the building height and the space available around the site. The survey determines whether a crane or other equipment is used, and we verify that the roof structure can carry the load before setting the unit on its base.
Why do chilled water pipes need aluminium cladding in Jeddah?
Chilled water pipes carry cold water through hot, humid, salty air. Without external protection, insulation deteriorates from moisture and salt and loses effectiveness. Aluminium cladding protects the insulation from outdoor air on rooftops and the humid interior air found in coastal buildings like those in Jeddah.
Can you connect AHUs to an existing duct network?
Yes, if the existing ducts are in good condition and match the new unit's connections. At the survey we check the duct opening sizes, the duct condition and the plenum arrangement, and confirm whether part of the network needs adjustment or transition pieces need to be fabricated in our workshop.
What does system commissioning involve?
After the pipe pressure test we run the chiller and AHUs, measuring air temperature and pressure at each unit's outlets. We adjust dampers and valves to achieve the designed air and water flow to every zone in the building, and record the final readings before handover.
What is the difference between placing the chiller on concrete inertia bases and on rubber anti-vibration mounts?
A concrete inertia base adds mass that dampens the chiller's own vibration and holds the unit steady when the compressor starts. Rubber anti-vibration mounts interrupt the path of vibration before it reaches the roof slab. Whether to use one approach or both depends on the site survey, which takes into account the roof structure, the size of the unit and the building design.
How many AHU units does a large residential complex need?
The number depends on the project size, floor count and zones to be served, which is determined in the engineering design after studying the cooling load for each area.
The project has underground car parks and storage, how do you route pipes to them?
We plan pipe routes with the engineers beforehand and use robust steel pipework in underground areas to withstand pressure and high moisture levels.
Jeddah's intense summer heat may reduce chiller efficiency, is that normal?
Yes, high outdoor temperatures affect chiller performance, so we size the unit with adequate margin and ensure the plant room has proper ventilation.
Is the chiller's electrical circuit separate from the building's other systems?
Yes, the chiller must have a dedicated high-capacity circuit, which we verify for cable size and breaker capacity before installation.
