How to Wire the Johnson A419 HTWL
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How to Wire the Johnson A419 HTWL
How to wire or assemble the Johnson A419 Thermostat (external thermometer). This device controls the temperature of heating and cooling devices such as refrigerators, freezers (typically to hold warmer than freezing), heaters, heat tape, etc. Also how to unlock the programming functions, at the end of the video.
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