Navien NCB-180 Installation & Operation Manual page 49

PCB DIP switch setting (DIP SW 2, set of 8)
Is switch #1 set correctly for Return Water Control (ON) or Supply Water Control (OFF)?
Unless continuous boiler operation is required, is switch #7 in the up (ON) position?
Unless using the Exhaust Thermostat, is switch #8 in the up (ON) position?
Front Panel DIP switch setting (DIP SW 1, set of 10)
Is switch #2 set correctly for Celsius (ON) or Fahrenheit (OFF)?
Unless using the well pump, is switch #3 set in the down (OFF) position?
Is switch #8 set correctly for the installation altitude?
Front Panel DIP switch setting (DIP SW 2, set of 2)
Is switch #2 set correctly for natural gas (OFF) or propane gas (ON)?
Operating the boiler
Have you shown the owner how to clean the inlet water filter?
Have you given the Installation & Operation Manual and User's Information Manual to the owner for future reference?
Have you shown the owner how to shut off the gas in case of an emergency?
48 Installation Check list
Yes No
Yes No
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Yes No