Senior Industrial Refrigeration Technician – Ammonia Systems

Johnson Controls, Inc.; Dubai Emirate; On-site; AED 90,000 - 120,000; Full time

Job summary

Johnson Controls in Dubai seeks an experienced Refrigeration Service Personnel to join the Industrial Refrigeration team. You will commission, service, troubleshoot, and maintain refrigeration systems across industries, reporting to the Field Line Manager.

You will read electrical drawings and P&ID diagrams, work with Sabroe, Gram, Frick compressors, and Danfoss valves. Experience with PLCs, DCS, and related controllers is essential. Strong communication with clients is required.

Qualifications

• Diploma or degree in Refrigeration and Air Conditioning.
• 6–8 years of hands-on field service experience.
• Strong understanding of electrical and controller drawings, and P&ID diagrams.
• Familiarity with Sabroe, Gram, and Frick compressor units.
• Proficiency with testing, commissioning, and servicing Danfoss valves and control systems.
• Experience in overhauling reciprocating screw compressors (Sabroe, Gram, Frick, YORK).
• Solid understanding of controls and instrumentation (relay-based, PLCs, DCS) and compressor controllers (Unisab, Gramatic, Quantum).
• Knowledge of process cooling equipment and refrigerants in petrochemical industries.
• Awareness of hazards with ammonia, propane, and H2S gases.
• Excellent communication and problem-solving skills.

Responsibilities

• Commission, service, and troubleshoot refrigeration systems and gas compressor units.
• Read and understand electrical and controller drawings and P&ID diagrams.
• Perform testing, commissioning, and service on Danfoss valves and control systems.
• Overhaul reciprocating screw compressors (Sabroe, Gram, Frick, YORK).
• Handle communication with customers and report on field activities.

Skills

Refrigeration systems

Electrical drawings

P&ID diagrams

Sabroe/Gram/Frick

Danfoss valves

Screw compressors

Controls & instrumentation

Hazards awareness

Education

Refrigeration & Air Conditioning diploma/degree

Tools

Danfoss control systems

Unisab/Gramatic/Quantum controllers

Job description

Johnson Controls in Dubai seeks an experienced Refrigeration Service Personnel to join the Industrial Refrigeration team. You will commission, service, troubleshoot, and maintain refrigeration systems across industries, reporting to the Field Line Manager.

You will read electrical drawings and P&ID diagrams, work with Sabroe, Gram, Frick compressors, and Danfoss valves. Experience with PLCs, DCS, and related controllers is essential. Strong communication with clients is required.