Information Display (For Servicer) - Navien NCB-180 Service Manual

4.4.10 information display (for servicer)

1. At the <Normal operation mode>, press the [Diagnostic] button once for 5 seconds to access the service information display.
2. Whenever the [+] / [-] button is pressed, the Information Data items are increased/decreased and displayed.
3. The current Information Data item is identified with a letter prefix followed by 3 digits of the relevant data.
4. Press the [Reset] button once to return to the <Normal operation mode>.
5. If there is no button input for 1 hour, then it automatically returns to the <Normal operation mode>.
Item
(A) Space heating supply
water temperature
(B) Space heating return
water temperature
(C) Domestic hot water outlet
temperature
(D) Cold water inlet
temperature
42 NCB Service Manual
Description
Display of the current space heating
outgoing water temperature
Display of the current space heating
incoming water temperature
Display of the current outgoing water
temperature
Display of the current incoming water
temperature
Display
For Celsius (℃) mode; ex) at 60℃
For Fahrenheit (℉) mode; ex) 120℉
For Celsius (℃) mode; ex) at 60℃
For Fahrenheit (℉) mode; ex) 120℉
For Celsius (℃) mode; ex) at 60℃
For Fahrenheit (℉) mode; ex) 120℉
For Celsius (℃) mode; ex) at 15℃
For Fahrenheit (℉) mode; ex) 59℉
Version 1.0