Ducted and central recharge
AC refrigerant charging in Al Baghdadiyah Al Gharbiyah
In Al Baghdadiyah Al Gharbiyah in central Jeddah, AC refrigerant charging starts with precise pressure and temperature readings, because uneven cooling across zones often stems from a leak, not low charge.
- Accurate pressure readings
- Charge recovery
- Nameplate-type charge
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When your system needs a refrigerant charge
- 1
Uneven cooling across zones
One office or floor feels hot while the rest of the building is cool. Before adding any refrigerant, the technician reads pressures and temperatures at several points to confirm that a low charge is actually the cause.
- 2
After a repair or component swap
Replacing a compressor, a valve or any part that opens the circuit means the old charge escapes. It must be recovered with a dedicated machine, then the line is vacuumed and recharged after the repair is done.
- 3
A system restarted after long shutdown
A central or rooftop unit shut down for a full season in Jeddah's salty coastal air may have lost part of its charge. We verify with pressure readings before adding anything, and look for a leak if the readings point to one.
Who it's for
Your villa's ducted system has lost its cooling
We read system pressures and line temperatures, find any leak in the long pipe runs, then vacuum and charge to the refrigerant type on the unit nameplate.
Ask on WhatsAppYour building's rooftop unit cools unevenly across floors
We inspect the system and its drawings, measure pressures and temperatures at multiple points to find the cause, then recover the old charge if a repair is needed and recharge to the nameplate type only.
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What the charging work covers
- Suction and discharge pressure readings
- Liquid and suction line temperatures
- Old refrigerant charge recovery
- Line vacuum before recharging
- Charge to nameplate refrigerant type
How we work
How we work
- 1
System check and readings
The technician checks the unit nameplate and system drawings, then reads suction and discharge pressures and line temperatures to judge the actual charge condition.
- 2
Find and fix the leak
If readings show a low charge, the technician finds the leak in the long line set, joints or components, and repairs it before any refrigerant is added.
- 3
Recovery and vacuum
The remaining old charge is recovered with a dedicated recovery machine, then a vacuum pump removes all air and moisture from the line before the new charge goes in.
- 4
Charge and verify
The system is charged with the refrigerant type on the nameplate only, never mixed with another type, then pressures are read again and cooling is checked across all zones.
Careful charge or a random top-up?
| Alrabih | The usual way | |
|---|---|---|
| Diagnosing the cause | Pressures and temperatures first | Add refrigerant straight away |
| The leak | Found and fixed before charging | Left to repeat the problem |
| Old charge | Recovered by machine | Vented to atmosphere |
| Refrigerant type | Nameplate type, no mixing | Whatever is to hand |
| Long line sets | Joints checked along the full run | Checked at the unit only |
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 Baghdadiyah Al Gharbiyah has a mix of modern villas and mid-rise apartment blocks, most with central or multi-split units serving several rooms and halls. When one zone stays warm while others cool, owners often assume the charge has depleted, but leaks from pipes, fittings, or the outdoor unit are far more common in this building mix, especially where copper runs face direct sun.
Al Baghdadiyah Al Gharbiyah sits in central Jeddah, a diverse zone of villas and apartment blocks with a modern layout and wide streets.
Most units here are central or multi-head split systems, with copper runs on walls or roofs stretching several metres.
The AC setup in Al Baghdadiyah Al Gharbiyah
- 1
Central units on rooftops
Many villas and blocks in Al Baghdadiyah use central AC units mounted on roofs, distributing cool air through metal ducts in the walls.
- 2
Multi-head split units for zones
Some buildings use multi-head split systems with one outdoor unit feeding several indoor heads, each zone running at different pressures.
- 3
Long copper runs exposed to direct sun
Copper lines between outdoor and indoor units often stretch several metres on exposed walls or roofs, raising the risk of leaks and corrosion.
Before the visit
Before our visit in Al Baghdadiyah Al Gharbiyah
- 1
Tell us where the outdoor unit is
Let us know if it is on the roof, the outer wall or a balcony, so we can prepare the right tools and measurement points.
- 2
Ensure safe access to the rooftop or wall
Check that the route to the roof or outer wall is safe and clear of obstacles, especially if the outdoor unit is high up.
- 3
Keep the main power switch accessible
We need to safely disconnect power to the unit during testing and charging, so ensure the main switch is accessible and working.
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FAQ
Questions about AC refrigerant charging
Why can't a second refrigerant type be mixed into a ducted system?
Every refrigerant type is matched to a specific compressor, lubricating oil and operating pressures. Mixing two types shifts the pressures and contaminates the oil, straining the compressor and ruining cooling performance. We read the nameplate type and use only that.
Can a rooftop unit be recharged without shutting the whole building down?
In most cases one rooftop unit can be worked on while the others keep running, but this depends on how the system is designed and how many units it has. The technician reviews the system drawings at the survey and decides the approach that causes least disruption.
What do pressure and temperature readings tell you about a central AC system?
Suction pressure and gas line temperature show how well the evaporator coil is absorbing heat, while discharge pressure and liquid line temperature reveal condenser performance. Comparing both sets against the manufacturer's values shows whether the charge is low, high or whether another component is the real problem.
Why is the old charge recovered rather than just released?
Releasing refrigerant to the air damages the ozone layer and is prohibited. Recovery keeps the gas for proper recycling or disposal. In large systems the charge is substantial, so recovery both protects the environment and avoids losing a costly material before the repair is complete.
How does charging a ducted system differ from charging a standard split unit?
A ducted system has much longer refrigerant line sets and a larger charge, so a shortage takes longer to appear and leak-finding covers a much greater length of pipe and joints. Pressure readings must also be compared against the manufacturer's values for the whole system, not just a single indoor unit.
How do you tell if it is a refrigerant leak rather than low charge?
We measure vapour pressure, pipe temperature and outdoor unit heat with specialist gauges; if the readings are unbalanced, we search for the leak in the pipes, fittings and unit itself.
Are refrigerant pipes safe from leaks when they run on outer walls?
Pipes on outer walls and roofs face sun, wind and humidity, so the outer layers can corrode and fittings crack over time, especially if not wrapped in thick thermal insulation.
The AC cools the rest but one room stays hot; does this mean the refrigerant is finished?
Uneven cooling like this usually points to a leak, not total charge depletion. We take pressure and temperature readings from the unit and pipes to pinpoint the exact leak location.
After charging, how often should we check the refrigerant level each year?
One annual check is usually sufficient if there is no leak, but if we have found a prior leak, we inspect every six months to ensure it has not restarted.
