AC/DC Controller Wiring Instructions AC/DC Controller will operate system from AC when both AC and DC power present. If AC disconnected for more than 1 minute, AC/DC Controller will operate system from DC source. Either This: Or This: Or This: Mechanical Thermostat Option 1 Option 2 CAREL COASTAL MK II Digital Thermostat Digital Thermostat 1 2 3 4 5 6 7 8 9 2 3 5 6 8 9 frigoboat Sensor Sensor Do not connect any 12v accessories to these terminals. Connect them to terminals A and C. L N ‐ + 12v output to Fan, or Relay for Pump F A C D C P T AC Input 115v or 230v 50Hz or 60 Hz 12v or 24v DC Supply 12v DC output for accessories Max. 0.5 Amp continuous + _ Switch or breaker _ 12v light and/or accessories Danfoss 101N0500 AC/DC controller Fuse + 12v or 24v Battery