Introduction to Market Refrigeration for HVAC Techs

This course explores the key differences between residentialcommercial air conditioning systems and the parallel rack refrigeration systems commonly found in supermarkets While the core refrigeration cycle concepts remain the same the course delves into the distinct physical setups components and control strategies used in market refrigerationTopics covered includeMajor components such as compressor racks condensers and evaporator casesControl systems and sensors for precise temperature and pressure regulationTechniques for maintaining different evaporator temperatures for various product zones freezers coolers etcDefrosting strategies for evaporator coils operating below freezingReclaim systems that recycle compressor heat for hot water or dehumidificationSplit condensers and fan staging for efficient low ambient operation