New Zealand Certificate in Air Conditioning Installation (Level 4) Certification Exam

New Zealand Certificate in Air Conditioning Installation (Level 4) This Level 4 qualification splits into practical and written components, with assessors evaluating your work directly on job sites and in controlled environments. You’ll complete detailed portfolio evidence? installation photos, service reports, and system designs? alongside written assessments covering thermodynamic principles and regulatory compliance. The modular structure lets you progress through refrigeration fundamentals, commercial unit installation, and maintenance procedures at a realistic pace, with each section requiring demonstrated competency before advancing to capstone projects involving full system commissioning.