Optical Sensor
58 RTHC-SVD01B-EN
7. If the status reads 'WET', connect a 24 VDC power supply to the
Chiller Module (1U1) at J9-3 and J9-4. After 10 seconds, the sta-
tus should change to 'DRY'. If the status does not change, the
Chiller Module is defective and needs to be replaced. If the status
reads correctly, the Optical Sensor is defective and needs to be
replaced.
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