Al Cyan Electromechanical & General Contracting LLC OPC provides professional chiller maintenance, repair, troubleshooting and mechanical services for commercial, residential and industrial cooling systems.

Our chiller services cover routine preventive maintenance, breakdown repair, compressor works, refrigerant-related services, chilled-water piping, electrical and control troubleshooting, and system performance checking. These activities are commonly included in commercial chiller maintenance programs in the UAE. 

Regular preventive maintenance helps identify mechanical, electrical and refrigeration-system issues before they develop into major breakdowns.

Our maintenance activities include:

• Chiller general inspection 
• Operating parameter checking 
• Refrigerant pressure checking 
• Oil level and condition checking 
• Electrical connection checking 
• Voltage and current checking 
• Temperature measurement 
• Condenser inspection 
• Evaporator inspection 
• Fan and motor inspection 
• Pump inspection 
• Control panel inspection 
• Safety device checking 
• Cleaning of accessible components 
• Performance testing 

Our team provides technical troubleshooting for chiller systems experiencing cooling problems, abnormal operating conditions, alarms or repeated trips.

We troubleshoot:

• Chiller not starting 
• High-pressure trips 
• Low-pressure trips 
• Poor cooling performance 
• Compressor faults 
• Condenser fan problems 
• Pump-related issues 
• Refrigerant leakage 
• Electrical faults 
• Control panel faults 
• Sensor and thermostat issues 
• Temperature-related problems 
• Abnormal noise and vibration 
• Repeated system shutdowns 

Chiller troubleshooting generally involves checking mechanical, electrical, refrigerant and control-system conditions rather than simply resetting the machine and hoping for the best, which is unfortunately a popular maintenance philosophy. 

We undertake corrective repair works to restore chiller operation and cooling performance.

Repair works include:

• Compressor-related repairs 
• Condenser fan motor replacement 
• Motor replacement 
• Valve replacement 
• Sensor replacement 
• Electrical component replacement 
• Control component replacement 
• Refrigerant leak rectification 
• Refrigerant charging 
• Pipe repair 
• Insulation replacement 
• Pump-related repair works 
• Mechanical component replacement 

Where major components are found defective, the replacement scope can be quoted separately following technical assessment.

Compressor condition is critical to chiller performance. Al Cyan provides compressor repair, replacement and overhauling support for suitable chiller applications.

Compressor services include:

• Compressor inspection 
• Compressor fault diagnosis 
• Compressor dismantling 
• Compressor internal inspection 
• Component inspection 
• Bearing inspection 
• Seal inspection 
• Valve inspection 
• Oil inspection and replacement 
• Cleaning of internal components 
• Replacement of damaged components 
• Reassembly 
• Alignment and checking 
• Electrical testing 
• Trial operation 
• Performance monitoring 

For major compressor overhauls, the actual scope is determined based on the compressor type, condition and manufacturer's requirements. Compressor overhaul work can involve inspection of internal mechanical components followed by testing after reassembly. 

We provide inspection and maintenance support for condenser and evaporator components to help maintain proper heat-transfer performance.

Services include:

• Condenser inspection 
• Evaporator inspection 
• Coil cleaning 
• Heat exchanger inspection 
• Tube condition checking 
• Scaling and fouling assessment 
• Leakage checking 
• Temperature difference checking 
• Pressure condition checking 
• Cleaning and maintenance 
• Related repair works 

Our technicians carry out refrigerant-related maintenance and repair works as required for the equipment.

Services include:

• Refrigerant pressure checking 
• Leak inspection 
• Leak detection 
• Refrigerant recovery 
• Vacuuming 
• Refrigerant charging 
• Refrigerant top-up where required 
• Refrigerant pipe inspection 
• Refrigeration circuit troubleshooting 

Proper refrigerant recovery, vacuuming, charging and leak rectification are standard technical activities associated with chiller service work. 

We undertake chilled-water piping and insulation works for new installations, modifications and maintenance requirements.

Our scope includes:

• Chilled water pipe installation 
• Pipe modification 
• Pipe replacement 
• Pipe support installation 
• Valve installation 
• Flange works 
• Strainer installation 
• Drain and vent connections 
• Pipe insulation 
• Insulation repair 
• Cladding works 
• Leakage rectification 
• Pressure testing 
• System flushing support 

Chillers depend on both mechanical and electrical/control systems. We provide electrical troubleshooting and component replacement associated with chiller operation.

Services include:

• Control panel inspection 
• Electrical connection checking 
• Contactor replacement 
• Relay replacement 
• MCB/MCCB-related works 
• Sensor replacement 
• Temperature sensor checking 
• Pressure sensor checking 
• Control wiring 
• Motor electrical testing 
• VFD-related troubleshooting 
• Controller fault diagnosis 
• Electrical testing and commissioning 

After maintenance or repair, we can carry out operational and performance checks to verify system condition.

Checking includes:

• Chilled water supply temperature 
• Chilled water return temperature 
• Refrigerant pressures 
• Compressor operating condition 
• Motor current 
• Voltage 
• Condenser condition 
• Fan operation 
• Pump operation 
• Abnormal noise and vibration 
• Operating alarms 
• General cooling performance 

Performance monitoring commonly includes temperatures, pressures, electrical readings and other operating parameters. 

When a chiller stops, nobody wants a philosophical discussion about the weather. We provide breakdown support for urgent cooling-system problems.

Emergency support can include:

• Breakdown inspection 
• Fault diagnosis 
• Emergency repair 
• Temporary rectification 
• Compressor-related faults 
• Refrigerant problems 
• Electrical faults 
• Control faults 
• Cooling failure 
• Pump and motor problems 
• Replacement of failed components