iREF Commissioning & Service Field Engineer

Johnson Controls; Dubai; On-site; AED 120,000 - 200,000; Full time

Job summary

A leading technology company in Dubai is looking for an Industrial Refrigeration Service & Commissioning Specialist. The role involves supporting testing and commissioning activities for industrial refrigeration systems, conducting maintenance, and supervising installations. Candidates should have a diploma in Refrigeration and Air Conditioning, 6 to 8 years of field service experience, and strong communication skills. A UAE driving license is also required. This position offers a dynamic work environment and involvement in significant projects.

Qualifications

• Minimum of 6 to 8 years of hands-on field service experience.
• UAE driving license is mandatory.
• Excellent communication and problem-solving skills.

Responsibilities

• Support testing and commissioning activities for industrial refrigeration.
• Conduct service and maintenance on ammonia refrigeration systems.
• Supervise installation of refrigeration equipment to meet specifications.
• Perform inspections and tests on installed systems to confirm quality.

Skills

Hands-on field service experience

Communication skills

Problem-solving skills

Education

Diploma or degree in Refrigeration and Air Conditioning

Tools

Danfoss valves

Control systems

Job description

What you will do

The Industrial Refrigeration Service & Commissioning Specialist supports the iREF Middle East and Africa projects team by assisting with testing and commesioning acitivities and service

• Including but are not limited to: reviewing PID, SLD and MCC Drawings and documentation provided by supplier or internal design team, conducting site survey, participating in technical meeting with customer or consultant and explain testing strategy,

• Conduct service and maintenance activities on IR Ammonia single and double stage systems, adhering to operational philosophies.
• Commission, service, and troubleshoot refrigeration systems and gas compressor units, with a preference for experience with Sabroe, Gram, and Frick units.
• Perform testing, commissioning, and service on Danfoss valves and control systems commonly used in JCI industrial refrigeration systems.
• Overhaul reciprocating screw compressors, preferably with experience on SABROE, GRAM, Frick, and YORK compressors.
• Possess refrigeration knowledge and experience in controls and instrumentation, including an understanding of relay-based controls, PLCs, DCS systems, and compressor unit controllers such as Unisab, Gramatic, and Quantum.
• Familiarity with process cooling equipment commonly used in petrochemical industries, including systems utilizing propane, Propylene and R134a refrigerants.
• Maintain a basic understanding of the hazards associated with ammonia, propane, and H2S gases.
• Handle, report, and communicate effectively with food and beverage and PRS customers.

• Installation Oversight: Supervise and coordinate the installation process of refrigeration equipment to ensure it aligns with design specifications and quality standards.
• Pre-Commissioning Checks: Conduct thorough inspections of the installed systems to confirm that all components (compressors, condensers, evaporators, etc.) are properly installed and free from defects.
• System Testing: Perform performance testing of refrigeration systems, including checking for leaks, verifying capacity, and ensuring operational parameters are met under various conditions.
  Calibration: Adjust and calibrate control systems, sensors, and instrumentation to ensure accurate monitoring and effective system control.
• Operational Training: Provide training to operational personnel on the safe and efficient operation of the refrigeration systems, ensuring they understand maintenance procedures and emergency protocols.
  Documentation: Prepare and maintain comprehensive documentation, including test results, commissioning reports, and as-built drawings, to facilitate future maintenance and troubleshooting.
  Troubleshooting: Identify and resolve any issues or inefficiencies during the commissioning phase, working closely with other engineers and technicians to implement solutions.
• Safety Compliance: Ensure that all systems are compliant with safety regulations and industry standards, such as ASHRAE and EPA guidelines pertaining to refrigerants and safety protocols.
• Performance Optimization: Analyze system performance data post-commissioning and recommend improvements or adjustments to enhance energy efficiency and operational reliability.

How you will do it

The industrial refrigeration commissioning & service specialist can effectively execute his/her responsibilities by:

• Documentation Analysis: Review design documents such as specifications, schematics, and layouts meticulously to confirm that necessary factors such as thermal load calculations and refrigeration cycle designs are incorporated.
• Coordination Meetings: Organize and participate in design review meetings with stakeholders to address potential issues and clarify design intentions, ensuring all parties are on the same page.
• Integration Checks: Ensure that the refrigeration system integrates well with other systems (HVAC, electrical, plumbing) within the facility, verifying flow paths and controls.
• On-Site Supervision: Actively supervise the installation team, providing guidance on best practices, and ensuring that the installation capabilities meet specified protocols.
• Acceptance Testing: Inspect and sign off on the completion of each installation phase, ensuring standards are met before moving on to subsequent steps.
• Coordination with Other Trades: Work closely with electrical, mechanical, and plumbing teams to ensure timely and efficient collaboration without hindering progress.
• Initial System Inspections: Conduct a full walk-through of the installed equipment, checking alignment, installation quality, and compliance to design.
• Checklists and Protocols: Develop specific checklists tailored to the project to ensure no critical components or steps are overlooked.
• Documentation of Findings: Record any issues, discrepancies, or non-compliance findings, ensuring these are communicated and rectified before proceeding.
• Dry Runs and Pressure Tests: Conduct dry runs of the system, testing for integrity under varying pressures, to ensure no leaks exist before charging the system with refrigerants.
• Load Testing: Simulate typical operational loads to assess the system's performance and check that it meets the required capacity.
• Emergency Procedures Testing: Test emergency shutdown procedures and safety locks to ensure compliance and operational preparedness.
• Precision Instruments Setup: Utilize advanced precision measuring tools such as thermocouples, pressure gauges, and flow meters to gather baseline operational data.
• Control Calibration Processes: Implement structured processes for temperature and pressure set-point calibrations to ensure controls work accurately throughout system operation.
• Performance Monitoring: Continuously monitor system performance post-calibration to identify any fluctuations or anomalies.
• Customized Training Modules: Develop and implement training programs tailored to the specific refrigeration system and its components to enhance operator understanding.
• Safety Drills: Conduct regular drills to practice emergency response scenarios, ensuring that all personnel are prepared for potential issues.
• User Manuals and Resources: Create easily accessible user manuals, troubleshooting guides, and service schedules that operators can reference for day-to-day operations.
• Comprehensive Commissioning Files: Create a commissioning file that contains all relevant documentation, including installation photos, specifications, calibration records, and performance test results.
• Updates to Technical Documentation: Ensure all changes throughout the commissioning process are reflected in updated technical documents and drawings.
• Format Standardization: Follow company standards for naming conventions, formats, and documentation processes to ensure consistency and ease of understanding.
• Structured Problem Solving: Employ systematic troubleshooting methodologies, such as the 5 Whys or fishbone diagrams, to identify and resolve root causes of detected issues.
• Data Recording and Trend Analysis: Maintain logs of system performance and historical data to analyze trends over time, aiding in predictive maintenance initiatives and future troubleshooting efforts.
• Cross-Disciplinary Collaboration: Work collaboratively with design engineers and technicians to address complex issues requiring interdisciplinary expertise.
• Regulatory Alignment: Keep informed about current refrigeration regulations (e.g., EPA, OSHA, local codes) and ensure all activities comply with the latest standards.
• Safety Guidelines Development: Create safety guidelines specific to the refrigeration systems in place, emphasizing proper refrigerant handling and PPE (Personal Protective Equipment) usage.
• Accident Reporting Protocols: Establish protocols for reporting accidents or near misses, fostering a culture of safety and continuous improvement within the team.
• Energy Efficiency Audits: Evaluate energy consumption data to identify opportunities for improvements in system efficiency or retrofitting options.
• Post-Commissioning Review: Conduct a post-commissioning review meeting with stakeholders to discuss performance outcomes, discrepancies from expected results, and areas for potential optimization.
• Feedback Integration: Develop a system for collecting ongoing feedback from operators regarding system performance and incorporate that feedback into future commissioning and design processes.

What we look for

• Hold a diploma or degree in Refrigeration and Air Conditioning.
• Have a minimum of 6 to 8 years of hands-on field service experience.
• Excellent communication and problem-solving skills.
• UAE driving license is mandatory.