Chilled water piping in Yas Island 

Chilled water piping in Yas Island: local context

Yas Island is Abu Dhabi's leisure island, home to theme parks, the Formula 1 circuit, hotels, a major mall and growing residential communities of villas, townhouses and mid-rise apartments built since the late 2000s. Its building stock is mostly hospitality, leisure and residential. New residential neighbourhoods continue to be added around the leisure core, so construction sites sit beside fully operating hotels and attractions.

• Tabreed district cooling serves parts of the island, so buildings may connect through energy transfer stations instead of standalone chillers, depending on plot.
• Hotels need guestroom fan coil systems, central hot water with Legionella control, kitchen extract and fresh-air dehumidification to manage the humid coastal climate.
• Major events on the island can restrict road access and deliveries, so schedules are planned around the events calendar.

Building types we serve in Yas Island

For malls and retail centres, the work concentrates on large-volume air handling, tenant-ready chilled water or refrigerant capacity, smoke extraction for atriums and car parks and food-court exhaust.

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.
• Closed-cell insulation with vapour barrier, aluminium cladding outdoors and labelling with flow direction.

Systems we install

• Pressure independent control valves at fan coils and AHUs
• Y-strainers, flushing bypasses and dirt separators at plant connections

UAE site and climate challenges

• Chilled-water pipes run well below the dew point of humid UAE air, so any gap in the vapour barrier leads to condensation, wet insulation and dripping ceilings; joints, supports and valves are therefore inspected before ceilings close.
• Buried networks in saline or high-water-table ground face corrosion, so pre-insulated systems with protective jackets and sealed joints are used and trenches are backfilled with suitable material.
• Pressure independent control valves versus manual balancing valves: PICVs cost more per coil but simplify balancing, keep flows stable as loads change and help protect the system delta-T over the building's life.

Relevant Manolia projects

28 storeys

28-storey tower, Abu Dhabi

Abu Dhabi · MEP · Completed

MEP works for a 28-storey tower.

Al Salam Tower, Sharjah

Sharjah · HVAC · Completed

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

Frequently asked questions