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Tag Archives: thermostat

How Refrigeration Thermostats/Cold Controls Work

The first step to understanding how refrigeration thermostats (aka cold controls) work is to understand a counter-intuitive fact about refrigeration physics: Cooling is achieved by sensing and removing warm air, not by adding cool air. A thermometer, then, measures how much heat is present. If the heat level reaches a …

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Replace Commercial Refrigeration Thermostats Yourself

There are two types of temperature controls used in commercial refrigeration: 1. Thermostatic (either an air sensing type or evaporator coil sensing type) 2. Low pressure control Let’s start with thermostatic type controls.  An air-sensing thermostat does just that: it senses air temperature.  The control sensor tube is usually mounted in the …

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