Navien NCB-150E Service Manual page 46

Item
Current exhaust gas temperature
(P) Exhaust Gas Temperature
display
Currently set model and capacity
display
(Q) Model and Capacity The 2nd & 3rd digits represent
the model and the 4th digit
represents the type of market.
(R) Information on Gas Type Display of current gas
Description
Exhaust Gas Temperature display for Celsius (°C) mode with sensor,
ex) 60°C
Exhaust Gas Temperature display for Fahrenheit (°F) mode with sensor,
ex) 120°F
Exhaust Gas Temperature display without sensor
ex) Capacity 180, condensing for the American market
ex) Capacity level 240, for the Korean market
ex) Setting error
NG
LP
Display
System Details 45