Welcome, Dennis Fong

Academy

Short courses on CO2 refrigeration, the 2027 F-Gas rules and Muller equipment. Finish a course to earn a badge and a certificate.

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The 2027 F-Gas transition · Lesson 4

3 of 6 lessons50%

Curriculum

Compliance · Core

The 2027 F-Gas transition

What GWP 150 means and how to specify compliant CO2 systems.

6 lessons 45 min Continue ›

CO2 systems · Primer Complete

Transcritical CO2, end to end

Booster architecture, gas-cooler control and warm-climate efficiency.

8 lessons 1 h Review ›

Cold-room heat-load basics

The heat sources that set cooling capacity, and how sizing works.

5 lessons 35 min Start ›

Products · Primer

Selecting Muller unit coolers

Reading catalogue capacity, fin spacing and defrost against a duty.

4 lessons 30 min Start ›

Lessons

Reading the gazetted GWP listThe 2027 F-Gas transition · Lesson 3 7 min 2 Sizing for high door trafficStandalone lesson 9 min 3 CO2 gas-cooler pressure controlTranscritical CO2, end to end · Lesson 5 11 min Choosing a defrost methodStandalone lesson 6 min 5 Refrigerant recovery on decommissioningStandalone lesson 8 min

Badges

CO2 Certified

CO2 systems course

F-Gas Aware

Compliance course

Load Sizing Pro

Sizing course

Quote Master

10 quotes sent

Certifications

CO2 Systems Specialist

Issued to Dennis Fong · 12 Jul 2026

F-Gas Compliance 2027

Complete all 6 lessons in The 2027 F-Gas transition to earn this certificate.

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