Defrost Mistake That Sends Refrigeration into a Head Pressure Death Spiral - Julian Finbow Part 2
About this episode
Gary McCreadie discusses various defrost methods in commercial refrigeration with Julian Finbow, focusing on their operation, benefits, and challenges.
In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Julian Finbow, RSE , Service Tech Support at Swegon North America , and Principal at Finbow Inc. , about the different types of defrost methods used in commercial refrigeration systems. Julian explains how electric defrost, hot gas defrost, and cool gas defrost work, along with their advantages, challenges, and energy use. The conversation also covers defrost termination controls, mechanical and digital defrost time clocks, managing head pressure in large rack systems, and real service experiences showing how adjusting defrost schedules can improve temperature control and reduce frost buildup in refrigeration equipment. Gary and Julian discuss the different defrost methods used in commercial refrigeration systems and how each one affects performance and efficiency. Julian explains how electric defrost, hot gas defrost, and cool gas defrost work, along with their benefits and challenges. The conversation covers defrost termination controls, mechanical and digital defrost time clocks, the importance of head pressure during hot gas defrost, and real field examples showing how changing defrost schedules…
People in this episode
Host: Gary McCreadie
Guest: Julian Finbow
Topics covered
- defrost methods
- commercial refrigeration
- energy efficiency
- temperature control
- head pressure management
Keywords
- electric defrost
- hot gas defrost
- cool gas defrost
- defrost termination controls
- head pressure
- refrigeration systems
- temperature control
- frost buildup
Mentioned in this episode
Organizations: Swegon North America, Finbow Inc.
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