Navien NCB-150E Service Manual page 52

Item
During space heating, the boiler turns off the burner when the space heating
supply temperature meets or exceeds the burner-off temperature.
(L) CH Burning OFF
Differential
During space heating, the boiler turns on the burner when the space heating
supply temperature is below the burner-on temperature.
(M) CH Burning ON
Differential
This menu may be used to make changes to the maximum supply
temperature range when the Supply Control mode is in use. When
configuring the Custom mode in the Outdoor Reset Control mode, the supply
(N) Supply Absolute temperature changes based on the supply absolute MAX temperature range.
MAX Set-point
[MIN Set-point + 36°F(20°C)] - 194°F(90°C)
This menu may be used to make changes to the maximum supply
temperature range when the Supply Control mode is in use. When
configuring the Custom mode in the Outdoor Reset Control mode, the supply
(O) Supply Absolute temperature changes based on the supply absolute MIN temperature range.
MIN Set-point
Description
Setting range
2 - 54°F(1 - 30°C)
Setting range
5-54°F(3-30°C)
Setting range
Setting range
77°F(25°C) - [MAX Set-point - 36°F(20°C)]
For Celsius (°C) mode; ex) at 0°C
For Fahrenheit (°F) mode; ex) at
Default
0°F
0°F(0°C)
For Celsius (°C) mode;
ex) at 6°C
Default
For Fahrenheit (°F) mode;
ex) at 10°F
5°F(3°C)
For Celsius (°C) mode;
ex) at 82°C (feed water control)
For Fahrenheit (°F) mode;
Default
ex) at 180°F
180°F(82°C)
For Celsius (°C) mode;
ex) at 40°C
For Fahrenheit (°F) mode;
Default
ex) at 104°F
104°F(40°C)
Display
System Details 51