Ducted and central recharge
AC refrigerant charging in Al Sahil
AC refrigerant charging in Al Sahil begins with pressure and temperature checks before adding any coolant. Alrabih's team identifies any leak first, then vacuums and fills the unit with the exact refrigerant type stated on its nameplate.
- 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 Sahil is a relatively older coastal district with mid-range villas and flats plus some residential clusters, and its buildings have faced years of sea humidity and salt effects on copper pipes. Refrigerant leaks may stem from pipe corrosion caused by coastal moisture, not just from a weak original charge. Pressure and temperature readings reveal the difference between a genuine leak and an uneven refrigerant distribution across zones.
Al Sahil lies directly on the coast south of Jeddah, an older villa and flat district where coastal humidity speeds metal corrosion.
Most central AC units in Al Sahil run on copper pipes that are years old and need periodic leak checks due to salt air exposure.
The AC setup in Al Sahil
- 1
Central system with pipes distributed to multiple rooms
Most villas and flats in Al Sahil rely on central AC with long copper runs, so refrigerant balance across zones directly affects each room's performance.
- 2
Outdoor units near the sea and salt spray
Outdoor units here face direct sea spray and salt exposure, which accelerates copper pipe corrosion and refrigerant leaks.
- 3
Older pipes may need replacement
Some copper pipes in Al Sahil may be aged and weakened by years of moisture and salt, potentially needing replacement rather than just charging.
Before the visit
Before our visit in Al Sahil
- 1
Confirm access to the outdoor unit
Let us know if the outdoor unit is on the roof or in the yard and confirm it is safe to access before the visit, as we need to inspect the copper pipes.
- 2
Gather the unit's basic information
If possible, take a photo of the nameplate on the indoor or outdoor unit and send it to us, as this speeds up identifying the correct refrigerant type.
- 3
Be present to explain current performance
Be present during the visit so we can test distribution across rooms and determine whether the issue is a leak or an imbalance.
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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.
My unit cools some rooms but leaves others warm, is it low on refrigerant?
Not necessarily. We measure pressure and temperature first to confirm, as the issue might be uneven distribution from a pipe or valve problem rather than a low charge.
Does coastal humidity in Al Sahil cause refrigerant leaks in the pipes?
Yes, salt and humidity accelerate copper pipe corrosion, so a refrigerant leak may stem from actual metal deterioration rather than a weak charge. Our inspection pinpoints where the leak is.
How often should I charge my AC refrigerant per year in Al Sahil?
If the system has no leak, you should not need routine charging. Leaks are the main reason for refrigerant loss, and pressure-temperature readings distinguish a genuine leak from normal operation.
Do you inspect the copper pipes when charging refrigerant?
Yes, we inspect copper pipes for signs of corrosion or visible leaks before vacuuming and charging. If we find pipe weakness from salt exposure, we inform you before proceeding.
