Navien NCB-180, Service Manual

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4.4.8 Viewing Basic Information (For Homeowner)
To view information about the boiler, press the [Mode] button three times. “INFO” will appear in the display.
Press the [+] or [
–
] buttons to switch between the information types.
Item Description Display
(A) Space heating supply water
temperature
Display of the current space
heating outgoing water
temperature
For Celsius (
℃
) mode; ex) at 60
℃
For Fahrenheit (
℉
) mode; ex) 120
℉
(B) Space heating return water
temperature
Display of the current space
heating incoming water
temperature
For Celsius (
℃
) mode; ex) at 60
℃
For Fahrenheit (
℉
) mode; ex) 120
℉
(C) Domestic hot water outlet
temperature
Display of the current outgoing
water temperature
For Celsius (
℃
) mode; ex) at 60
℃
For Fahrenheit (
℉
) mode; ex) 120
℉
(D) Cold water inlet temperature Display of the current incoming
water temperature
For Celsius (
℃
) mode; ex) at 15
℃
For Fahrenheit (
℉
) mode; ex) 59
℉