The course teaches the operation, maintenance and troubleshooting of refrigeration systems. Operational procedures, servicing procedures and safety precautions required during the handling of dangerous refrigerants such as ammonia are explained. Students are also introduced to common welding & cutting processes including non-fusion, fusion, and arc-welding methods. The students successfully completing this course will be conversant with the basic operations of refrigeration plants. They can understand operational procedures and follow planned maintenance systems. Following the completion of the course, they can confidently perform operational tasks in a safe and efficient manner. This is the second course of three courses required to obtain a Holland College Certificate in Industrial Refrigeration. Successful completion of all three courses provides the student with an exemption from the work-experience requirement of the province's class B refrigeration exam.