Lead Technician - Industrial Refrigeration

Johnson Controls International; Dubai; On-site; AED 180,000 - 240,000; Full time

Job summary

Johnson Controls, Inc. is seeking an experienced Refrigeration Service Personnel to join our Industrial Refrigeration team in the United Arab Emirates.

You will report to the Field Line Manager and be responsible for commissioning, servicing, troubleshooting, and maintaining refrigeration systems across various industries. You will read electrical/controller drawings and P&ID diagrams, commission and troubleshoot systems, and work with Danfoss valves and multiple compressor brands.

Qualifications

• 6–8 years of hands-on field service experience.
• Diploma or degree in Refrigeration and Air Conditioning.
• Strong ability to read electrical/controller drawings and P&ID diagrams.
• Experience with Sabroe, Gram, Frick, and YORK compressors.
• Proficient in testing, commissioning, and servicing Danfoss valves and control systems.
• Knowledge of hazards related to ammonia, propane, and H2S.
• Excellent communication and problem‑solving skills.

Responsibilities

• Commission, service, troubleshoot, and maintain refrigeration systems in various industries.
• Read and understand electrical and controller drawings and P&ID diagrams.
• Commission, service, and troubleshoot refrigeration systems and gas compressor units.
• Test, commission, and service Danfoss valves and control systems.
• Overhaul reciprocating screw compressors (Sabroe, Gram, Frick, YORK).
• Understand controls/instrumentation (relays, PLCs, DCS, Unisab, Gramatic, Quantum).
• Familiar with process cooling equipment and refrigerants in petrochemical industries.
• Understand hazards with ammonia, propane, and H2S.
• Communicate effectively with food/beverage and PRS customers.

Skills

Field service experience

Read electrical/controller drawings

Troubleshooting

Communication

Education

Diploma or degree in Refrigeration and Air Conditioning

Tools

Danfoss valves

Unisab

Gramatic

Quantum

SABROE compressor

GRAM compressor

Frick compressor

YORK compressor

Job description

What you will do

We are seeking an experienced and knowledgeable Refrigeration Service Personnel to join our Industrial Refrigeration team in the United Arab Emirates. In this role you will be reporting to the Field Line Manager and will be responsible for commissioning, servicing, troubleshooting, and maintaining refrigeration systems in various industries.

How you will do

• Conduct service and maintenance activities on IR Ammonia single and double stage systems, adhering to operational philosophies.
• Read and understand electrical and controller drawings, as well as P&ID diagrams.
• 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.

What we look for

• Proven experience and knowledge in the commissioning, servicing, and troubleshooting of refrigeration systems.
• Hold a diploma or degree in Refrigeration and Air Conditioning.
• Have a minimum of 6 to 8 years of hands‑on field service experience.
• Strong understanding of electrical and controller drawings, as well as P&ID diagrams.
• Familiarity with Sabroe, Gram, and Frick compressor units.
• Proficiency in testing, commissioning, and servicing Danfoss valves and control systems.
• Experience in overhauling reciprocating screw compressors, preferably SABROE, GRAM, Frick, and YORK compressors.
• Solid understanding of controls and instrumentation, including relay‑based controls, PLCs, DCS systems, and compressor unit controllers (Unisab, Gramatic, Quantum).
• Knowledge of process cooling equipment and refrigerants used in petrochemical industries.
• Basic awareness of the hazards associated with ammonia, propane, and H2S gases.
• Excellent communication and problem‑solving skills.