Chiller and AHU installation
Chiller & AHU installation in Al Nada
In Al Nada, east Jeddah, chiller and AHU installation serves the newer large buildings and residential complexes. Alrabih's team sets chillers on vibration-isolated bases, fully insulates and aluminium-clads the chilled water pipes before handover.
- 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 Nada is a newer growth district with mid to large residential and commercial buildings, where many commercial properties and small hotels require reliable central air systems. Installation here demands precision in bases and insulation, since newer buildings are sensitive to vibration and moisture, and the pipework running between floors needs full protection against sweating and leaks.
Al Nada lies in east Jeddah, a district of relatively newer buildings and spacious residential complexes.
Most newer buildings in Al Nada require a central chiller with multiple AHUs distributed across floors.
The AC setup in Al Nada
- 1
Central chiller with multiple distribution AHUs
Larger newer buildings in Al Nada need one chiller feeding multiple distribution AHUs spread across different floors.
- 2
Insulated and aluminium-clad pipework
Pipework running between floors requires full insulation and aluminium wrapping to prevent sweating, leaks and moisture damage.
- 3
Vibration-isolated base for the chiller
The chiller sits on a special base that absorbs vibration, protecting the pipes and joints from damage caused by movement.
Before the visit
Before our visit in Al Nada
- 1
Review system drawings with the engineer
We need a copy of the design drawings and proposed locations for the chiller and AHUs before our first visit.
- 2
Confirm the roof or plant room is ready
Check that the space for the chiller and AHUs is clear, and that access is safe and stable for the team and heavy equipment.
- 3
Designate access and unload point for heavy equipment
Tell us the best unload point for the heavy chiller and AHUs, and confirm whether lifting equipment or a crane is needed.
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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.
Do chillers and AHUs need special bases in Al Nada's newer buildings?
Yes, newer buildings here are vibration-sensitive. We set the chiller on vibration-isolated bases to protect the pipes and units from damage, which extends the system's lifespan.
Pipework runs across multiple floors, how do you protect it from leaks and mould?
We fully insulate the chilled water pipes and wrap them in aluminium to protect the insulation and prevent sweating that causes moisture on suspended ceilings and mould growth.
Do the AHUs need special space on the roof or plant room?
Yes, each AHU needs dedicated space near the pipework and ductwork. We coordinate with the engineers and contractor on location and connections before starting.
How do you ensure the system is working correctly before handover?
We run a full commissioning test of the chiller, AHUs and ducts, check temperatures and pressures, and confirm there are no leaks or vibrations before final handover.
