Installation, Repair, Preventive Maintenance & AMC for Helical Rotary Screw Chillers
Screw chillers are the workhorse choice for mid-to-large commercial and industrial cooling loads across the UAE — valued for their reliability, part-load efficiency, and lower vibration compared to reciprocating compressors. Emman Chiller services screw chillers from all major manufacturers, with engineers trained specifically on screw compressor mechanics, oil systems, and slide valve controls.
Reliable part-load performance — screw compressors maintain efficiency well even when cooling demand fluctuates, common in UAE buildings with variable occupancy
Lower vibration and noise than reciprocating compressors, making them suitable for buildings with noise-sensitive areas
Continuous duty capability — well-suited to near-year-round cooling demand typical of the UAE climate
Available in air-cooled and water-cooled configurations, fitting a range of site constraints

slide valve inspection and calibration, capacity control diagnostics, compressor bearing checks

oil analysis, oil separator inspection, and oil charge verification to prevent premature bearing wear

refrigerant charge verification, leak detection, expansion valve operation checks

control panel diagnostics, VSD/VFD checks where fitted, sensor calibration

coil cleaning (air-cooled) or tube inspection and water treatment (water-cooled), sized to your system configuration
often the first sign of a capacity control problem before it affects cooling output
reduces heat transfer efficiency and, if unaddressed, risks compressor damage
caught early through routine oil sampling rather than a full compressor rebuild later
common in UAE summer months without adjusted maintenance scheduling
needs screw-chiller-specific diagnostic knowledge, not generic HVAC troubleshooting
Annual Maintenance Contracts built around your screw chiller’s actual duty cycle — not a generic interval borrowed from a different compressor type. Includes scheduled oil analysis, slide valve checks, and priority emergency response.
Tell us your system’s brand, capacity, and the issue, and we’ll tell you honestly whether it’s routine maintenance, a component repair, or worth a full inspection first.
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