Ducted and central recharge
AC refrigerant charging in Al Fadilah
In Al Fadilah, south Jeddah, residential buildings and small hospitality units with central AC need precise refrigerant checks when cooling weakens or spreads unevenly. Alrabih measures pressure and temperature first, identifies any leak, then charges the original type.
- 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.
Split AC installation
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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 Fadilah is a growing residential zone with relatively modern apartment blocks and some hotels and mixed-use buildings. Central systems here tend to be newer but face high summer cooling demand that stresses them heavily. Seasonal humidity and heat can damage joints and seals, causing slow leaks that only show up as poor performance. Careful pressure and temperature checks before charging prevent overcharging and catch leaks early.
Al Fadilah is a growing residential and hospitality zone in south Jeddah, with modern residential buildings mixed with small hotels.
Systems here tend toward recent installation but heavy summer use and humidity quickly reveal leak issues.
The AC setup in Al Fadilah
- 1
Relatively modern central system for a building or hotel
Most buildings and hotels in Al Fadilah have relatively modern central AC, but heavy use demands regular checks.
- 2
Modern copper pipes exposed to salt and humidity
Modern copper lines resist corrosion better than older ones, but coastal salt and humidity gradually wear their protection.
- 3
Outdoor unit on roof with direct coastal exposure
Outdoor units on rooftops here face direct salty air exposure, hastening seal and joint corrosion.
Before the visit
Before our visit in Al Fadilah
- 1
Specify which building sections cool poorly
Tell us which sections or floors are weak on cooling so we can check pressure and temperature in those areas separately.
- 2
Agree a visit time with building or hotel management
Given high occupancy, we coordinate the visit in advance with management to minimise disruption to guests or residents.
- 3
Confirm team access to the roof and outdoor unit
Ensure the roof is safe and easily accessible, and the outdoor unit can be thoroughly inspected without obstacles.
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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.
The hotel or building runs very heavy use, does it need more frequent charging?
Heavy use stresses the system but does not increase refrigerant need. Repeated charging suggests a leak we will identify carefully.
Summer humidity is intense here and heat is severe, how does this affect the refrigerant?
Severe heat and humidity increase internal system pressure and accelerate seal and joint corrosion. We inspect joints and coils with extra care before charging.
The hotel or building sits near the sea, does salt air damage the pipes?
Yes, salty sea air accelerates corrosion of copper pipes and fittings. We clean and check these parts with particular care.
How do we confirm the charged refrigerant suits the original system?
We read the refrigerant name from the outdoor unit's nameplate, and charge the exact same type and amount per manufacturer specifications.
