Chilled water piping in Al Ain 

Chilled water piping in Al Ain: local context

Al Ain is the inland garden city in the east of Abu Dhabi emirate near the Omani border, with low-rise residential areas, villas, palaces, schools, hospitals and retail, and few towers. It has a distinct desert climate with very hot summers and greater day-night temperature swings than the coast. Utility services here are provided by AADC. Its oasis heritage and planning rules keep buildings low, with large villa plots and institutional campuses.

• AADC handles electricity and water connections, so load approvals, substations and metering follow AADC requirements rather than ADDC.
• Very high summer temperatures demand careful derating of air-cooled equipment and good shading of outdoor plant.
• Lower humidity than the coast reduces corrosion risk but dust is significant, so filtration and coil cleaning access are important.

Building types we serve in Al Ain

For schools and university buildings, the work concentrates on high fresh-air rates for dense classrooms, quiet systems, holiday-window works in occupied campuses and robust controls.

Scope of work

• Underground pre-insulated chilled-water networks between buildings, with trench coordination, leak detection wiring where specified and protected crossings.
• Isolation, balancing and two-way control valves at coils and risers so individual floors or buildings can be maintained without shutting the plant.
• Hydrostatic pressure testing of each section before insulation, followed by full system test before connection to the plant.
• Chemical cleaning and flushing to remove mill scale, debris and welding residue, with water treatment introduced after flushing.

Systems we install

• Pressure independent control valves at fan coils and AHUs
• Automatic air vents, drains and air separators

UAE site and climate challenges

• Large temperature differences between installation in summer heat and cold operating conditions cause expansion and contraction, so anchors, guides and loops are positioned to protect long risers, branch take-offs and equipment connections.
• Riser shafts open to outdoor air during construction fill with dust and humidity, so insulation is installed only after shafts are closed and pipes are clean and dry, avoiding trapped moisture under the vapour barrier.
• Steel versus pre-insulated or alternative pipe systems: welded or grooved steel remains standard for risers and plant rooms, while pre-insulated pipe suits buried routes between buildings and saves on-site insulation labour.

Relevant Manolia projects

HVAC

International Clear Packaging factory, Abu Dhabi

KEZAD (Khalifa Economic Zones Abu Dhabi) · HVAC · Completed

HVAC for a factory in a specialised economic zone.

Al Salam Tower, Sharjah

Sharjah · HVAC · Completed

Chiller plant and roof chilled-water network for a 52-typical-floor tower.

Frequently asked questions