National Vocational Certificate in Air conditioning and Refrigeration 4
All the unit standards listed below are required.
| Unit No. | Unit Standard Title | Level | Credits |
| Unit ID: 595 | Service evaporative coolers as part of air condition and refrigeration operations | 4 | 4 |
| Unit ID: 596 | Perform star and delta connections in motors as part of air conditioning and refrigeration operations | 4 | 4 |
| Unit ID: 597 | Analyse faults in printed circuit board in air conditioners | 4 | 6 |
| Unit ID: 598 | Repair faults in central plant Air conditioning systems | 4 | 6 |
| Unit ID: 599 | Service industrial refrigeration systems | 4 | 4 |
| Unit ID: 600 | Analyse the operation of heating, ventilating air conditioning and refrigeration systems | 4 | 4 |
| Unit ID: 601 | Commission commercial and industrial refrigeration systems | 4 | 6 |
| Unit ID: 602 | Analyse noise and vibration in air conditioning and refrigeration systems | 4 | 4 |
| Unit ID: 603 | Construct cold and freezer rooms | 4 | 11 |
| Unit ID: 735 | Establish a business as part of entrepreneurship operations | 4 | 12 |
| Unit ID: 736 | Implement, control and monitor business operations | 4 | 15 |
| Unit ID: 892 | Apply knowledge of intermediate mathematics in a different context | 4 | 6 |
| Unit ID: 896 | Apply advanced knowledge of engineering science in different contexts | 4 | 6 |
| Unit ID: 845 | Provide advanced First Aid | 4 | 8 |