VRF / VRV systems in Jumeirah Lakes Towers (JLT) 

VRF / VRV systems in Jumeirah Lakes Towers (JLT): local context

Jumeirah Lakes Towers is a DMCC free-zone district of around 80 towers arranged in clusters around artificial lakes, opposite Dubai Marina along Sheikh Zayed Road. Built mostly in the late 2000s, it mixes office, residential and hotel towers with ground-level retail and clinics. Manolia completed the MEP works for the Armada hotel tower (G+50) and MEP for the Armada surgical centre here.

• Empower supplies district cooling to much of JLT, so tower scopes typically include energy transfer stations, secondary chilled-water pumping, and careful control of return temperature to keep tariffs and plant performance in check.
• Healthcare fit-outs, such as surgical centres, need dedicated fresh-air AHUs, pressure cascades between clean and dirty areas, medical gas coordination and essential power arrangements.
• Clusters share podiums and access roads, so loading bays, hoist time and crane positions are negotiated with neighbouring towers and cluster management.

Building types we serve in Jumeirah Lakes Towers (JLT)

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

• Load and diversity review to size outdoor units realistically, avoiding both undersizing in summer and oversized systems that short-cycle.
• Refrigerant pipe routing with branch joints and headers, respecting manufacturer limits on total length, height difference and indoor-outdoor separation.
• Brazing under nitrogen purge to prevent internal oxidation, followed by pressure testing and deep vacuum before charging.
• Central controllers, individual room controls and optional BMS gateway integration for scheduling and fault reporting.

Systems we install

• Ducted, cassette and high-wall indoor units
• Refrigerant branch joints and headers to manufacturer specification

UAE site and climate challenges

• VRF outdoor units derate sharply above their rated ambient, and villa roofs in Dubai can see inlet air far hotter than shade temperature; units are selected for high-ambient models and placed with clearance so discharge air does not recirculate.
• Indoor VRF units in humid climates struggle with latent load from untreated fresh air, so a dedicated fresh-air unit is used to dehumidify before air enters rooms.
• Number of outdoor systems: more, smaller systems improve resilience and limit refrigerant charge per system, while fewer, larger systems reduce roof footprint and the number of electrical connections.

Relevant Manolia projects

Frequently asked questions