COURSE OVERVIEW:

The operation of refrigeration equipment is vital for various industrial and commercial sectors, requiring technicians to possess a thorough understanding of thermodynamic cycles. This course provides a comprehensive guide to the vapor compression cycle, explaining how refrigerants change states to transfer heat effectively. Participants will learn the functions of primary components, including compressors, condensers, evaporators, and expansion devices, and how they work in unison to maintain controlled environments.

Maintenance of refrigeration systems is essential for energy efficiency and the prevention of refrigerant leaks, which carry both financial and environmental costs. This training emphasizes the practical skills needed for routine servicing, such as cleaning coils, checking refrigerant charges, and inspecting electrical control circuits. The scope includes the proper use of specialized tools like manifold gauges, vacuum pumps, and leak detectors, ensuring that technicians can perform their duties with precision and safety.

Coverage also includes the regulatory landscape surrounding refrigerants, focusing on the transition toward environmentally friendly alternatives and the importance of recovery and recycling. By the end of the course, participants will be able to identify common performance issues and implement corrective actions to prevent equipment failure. This course aims to empower technicians with the knowledge to maintain system reliability, extend equipment life, and ensure compliance with modern environmental standards.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

1.  Describe the four main stages of the vapor compression refrigeration cycle.

2.  Identify different types of refrigerants and their specific pressure-temperature relationships.

3.  Perform accurate pressure and temperature measurements using manifold gauges.

4.  Calculate superheat and subcooling to evaluate system performance and charge.

5.  Execute safe refrigerant recovery and evacuation procedures according to regulations.

6.  Inspect and maintain various compressor types including reciprocating and scroll.

7.  Clean and troubleshoot air-cooled and water-cooled condenser systems.

8.  Calibrate thermostatic expansion valves (TXV) for optimal evaporator feeding.

9.  Detect and repair refrigerant leaks using electronic and ultrasonic methods.

10.  Test electrical components such as contactors, capacitors, and fan motors.

11.  Diagnose the causes of common issues like iced-up evaporators or high head pressure.

12.  Use a Pressure-Enthalpy (P-h) diagram to visualize the refrigeration process.

13.  Implement a preventive maintenance checklist to reduce emergency service calls.

TARGET AUDIENCE:

HVAC Technicians, Facility Maintenance Staff, Junior Engineers, and Plant Operators responsible for the daily operation and upkeep of refrigeration and cooling systems.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximise the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.