3 days ago · Overall Score: 9/10. The Lifetime 2198202 Refrigerator Cold Control Thermostat by Seentech is a high-quality replacement thermostat that is easy to install. It is an exact fit for Whirlpool and Kenmore refrigerators, and it replaces part numbers WP2198202, 2161284, 2198201, PS11739232, and AP6006166. The diffuser controls cold air circulation inside the refrigerator. Getty. Refrigerators don't generate coldness, they extract heat. Heat is absorbed by the evaporator coil incorporated in the freezer section. Air is drawn through the evaporator, removing the heat energy and chilling the freezer box to subfreezing temperatures. A refrigerator compressor is a type of compressor that is used to compress refrigerant gas in a refrigerator or freezer. The compressor is a vital refrigeration cycle component that lets the fridge cool its contents. The fridge compressor works similarly to a regular compressor, but it is designed specifically for use in a refrigeration system. One key to efficiency in any refrigeration system is an accurate thermostat. Practical Sailor compares a more expensive digital thermostat to a traditional, less expensive mechanical capillary thermostat. Refrigerator and freezer tests pitted the Grunert Marine Air Systems mechanical capillary refrigeration thermostats against the Scad Upstreman 4.5 Cu.Ft Mini Fridge with Freezer, Single Door Small Refrigerator, Adjustable Thermostat, Low noise, Energy-efficient, Compact Refrigerator for Dorm, Office, Bedroom, Black-FR45 102 $249.99 $ 249 . 99 Create clearance. When placing the refrigerator/freezer in your kitchen, make sure there is enough space for air to circulate around the coils. If they are located at the back of the unit, leave 2.5 centimeters of space between coils and wall. If they are beneath the unit, space is not an issue. 3. Here, by connecting the loads’ heater and cooler relays L1 and L2 we can build a simple electronic thermostat circuit that can be constructed. The values of three resistors R1, R2 and R3 for the necessary trip points VT1 & VT2 can be calculated using the following equations. VT1= 1.250V X R1/R1+R2+R3. VT2= 1.250V X (R1+R2)/R1+R2+R3. A thermostat regulates the temperature by monitoring the interior and activating the compressor as needed to maintain the desired level of coldness. Maintaining the Ideal Temperature. The refrigerator’s goal is to maintain a consistent low temperature, typically around 37°F (3°C) for the fresh food compartment and 0°F (-18°C) for the freezer. Unscrew the two wires from the terminals. Remove the motherboard of the old 2 wire thermostat and put the new 2 wire thermostat in its place. Reconnect the red and white wire, tighten down the set screw, and put the control panel back on. Test the 2 wire thermostat wiring by turning the furnace on. So my thought process was: 1. disconnect the fridge thermostat, and connect hot & neutral to the STC1000 cooling terminal. 2. splice hot & neutral to the STC1000 main power. 3. ferment beer. So I cut a hole in the door of the fridge, took out the old fridge thermostat which looked like this. Ju271.