Instrument Technician – HVAC & Industrial Control Systems

Overview

Industry

Qualification

• Diploma in Instrumentation Engineering, Electronics Engineering, or Electrical Engineering; OR
• ITI Certificate in Instrumentation, Electronics, Electrical, or equivalent technical trade.

Experience Required

• Minimum 4 years of relevant Gulf experience in Oil & Gas, Petrochemical, Refinery, Industrial Utilities, or Oil Field facilities.
• Proven hands-on experience in HVAC control systems, PLC, DCS, control valves, instrumentation calibration, and maintenance activities.

Job Purpose

Instrumentation & Control Systems

• Perform preventive, corrective, and breakdown maintenance of instrumentation and control systems.
• Install, calibrate, test, and troubleshoot pressure, temperature, flow, and level instruments.
• Maintain and troubleshoot PLC (Programmable Logic Controller) and DCS (Distributed Control System) equipment.
• Test, calibrate, and maintain control valves, actuators, valve positioners, and associated accessories.
• Troubleshoot analog and digital control signals, including 0-10 VDC and 4-20 mA loops.
• Conduct loop checking, signal verification, commissioning, and functional testing activities.
• Perform cable continuity checks, insulation resistance testing, and instrument performance verification.
• Read and interpret P&IDs, loop diagrams, wiring diagrams, control schematics, and instrument datasheets.
• Configure and troubleshoot field instruments using HART communicators and calibration equipment.

Hvac Control Systems

• Maintain and troubleshoot HVAC control systems including AHUs, FCUs, package units, chilled water systems, and ventilation systems.
• Troubleshoot HVAC controllers, sensors, actuators, thermostats, VFDs, dampers, and control panels.
• Calibrate HVAC temperature, humidity, pressure, and airflow sensors.
• Maintain and troubleshoot DDC (Direct Digital Control) and BMS (Building Management System) interfaces.
• Verify HVAC control sequences, safety interlocks, and system functionality.
• Diagnose communication issues between HVAC equipment and control systems.
• Assist in HVAC commissioning, testing, and performance optimization activities.
• Coordinate with Mechanical and Electrical maintenance teams to ensure reliable HVAC operations.

Candidates Should Possess Sound Working Knowledge Of

• PLC Systems
• DCS Systems

• Control Valves, Actuators & Valve Positioners

• AHU, FCU, Package Units, Chillers & Ventilation Systems

• Instrument Calibration Equipment

• Analog Signals (0-10 VDC & 4-20 mA)

• HART Communicators & Smart Instrument Configuration

• Industrial Communication Protocols such as Modbus and Profibus (Preferred)

Hse & Compliance Responsibilities

• Follow Permit to Work (PTW), Lockout/Tagout (LOTO), and company HSE procedures.
• Ensure compliance with site safety regulations and operational standards.
• Participate in shutdowns, turnarounds, plant outages, and emergency maintenance activities.
• Maintain safe work practices in hazardous and industrial environments.

Additional Requirements

• Ability to read, write, and communicate effectively in English.
• Strong troubleshooting, analytical, and problem-solving skills.
• Ability to work independently in remote oil field and industrial environments.
• Physically fit to work in outdoor and industrial conditions.

Preferred Certifications

• Permit to Work (PTW)
• Lockout/Tagout (LOTO)

• Confined Space Entry

• Working at Height Training

Experience Summary