Model XR20C, format 32 x 74 mm, is a digital thermostat with an off-cycle defrost designed for refrigeration applications at normal temperatures. It provides a relay output to drive the compressor. It is also provided with 2 NTC or PTC probe inputs, the first one for temperature control, and the second one, optional, to connect to the HOT KEY terminals to signal the condenser temperature alarm or to display a temperature. The digital input can operate as a third temperature probe.
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