Course Title: Repair and service ammonia refrigeration systems

Part A: Course Overview

Program: C4301 Certificate IV in Refrigeration and Air-conditioning Systems

Course Title: Repair and service ammonia refrigeration systems

Portfolio: SEH Portfolio Office

Nominal Hours: 20

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Course Code




Learning Mode

Teaching Period(s)

Course Contact: Program Manager

Course Contact Phone: +61 3 9925 4468

Course Contact Email:

Course Description

This unit covers specialised procedures for servicing and repairs to achieve the effective and efficient operation of refrigeration equipment using Ammonia as the refrigerant. It reinforces safe working practice and encompasses applying specialised knowledge of refrigeration principles that apply to Ammonia, following service manuals, testing, locating and rectifying faults and defective components and completing the necessary service documentation.

Pre-requisite Courses and Assumed Knowledge and Capabilities

UEENEEJ178A Apply safety awareness and legal requirements for ammonia refrigerant

UEENEEJ111A Diagnose and rectify faults in air conditioning and refrigeration systems and components

UEENEEJ113A Commission air conditioning and refrigeration systems

UEENEEE101A Apply Occupational Health and Safety regulations, codes and practices in the workplace

UEENEEE102A Fabricate, assemble and dismantle utilities industry components

UEENEEE003B Solve problems in extra-low voltage single path circuits

UEENEEE105A Fix and secure electrotechnology equipment

UEENEEE107A Use drawings, diagrams, schedules, standards, codes and specifications

UEENEEE137A Document and apply measures to control OHS risks associated with electrotechnology work

UEENEEJ102A Prepare and connect refrigerant tubing and fittings

UEENEEJ103A Establish the basic operating conditions of vapour compression systems

UEENEEJ104A Establish the basic operating conditions of air conditioning systems

UEENEEJ106A Install refrigerant pipe work, flow controls and accessories

UEENEEJ107A Install air conditioning and refrigeration systems, major components and associated equipment

UEENEEJ108A Recover, pressure test, evacuate, charge and leak test refrigerants

UEENEEJ110A Select refrigerant piping, accessories and associated controls

UEENEEJ153A Find and rectify faults motors and associated controls in refrigeration and air conditioning systems

UEENEEJ170A Diagnose and rectify faults in air conditioning and refrigeration control systems

UEENEEJ194A Solve problems in low voltage refrigeration circuits

UEENEEP012A Disconnect / reconnect composite appliances connected to low voltage installation wiring

UEENEEP017A Locate and rectify faults in low voltage composite appliances using set procedures

National Competency Codes and Titles

National Element Code & Title:

UEENEEJ179A Repair and service ammonia refrigeration systems


1. Prepare to service and repair Ammonia refrigeration systems

2. Service and repair Ammonia refrigeration systems.

3. Complete work and report on servicing and repairing Ammonia refrigeration systems

Learning Outcomes

Refer to Elements

Overview of Assessment

Assessment may incorporate a variety of methods including written/oral activities and demonstration of practical skills to the relevant industry standards. Participants are advised that they are likely to be asked to personally demonstrate their assessment activities to their teacher/assessor. Feedback will be provided throughout the course.