Navien NPE-180A Service Manual page 45

Item
(J)Flame condition
(K)Exhaust gas
temperature
(L)Model and capacity
(M)Recirculation setting
information
* 2 letter: Pump
nd
I: Internal Pump
E: External Pump
B: Both (Internal &
External) Pump
* 3 , 4th letters:
rd
Circulation, Intelligent
Preheat
EC: External Circulation
IC: Internal Circulation
IT: Intelligent Preheat
44 NPE Service Manual
Description
Flame detection current AD value display
Flame On: 8bit AD value less than 70
Flame Off: 8bit AD value more than 175
Current exhaust gas temperature display
Currently set model and capacity display
The 2nd & 3rd digits represent the model
and the 4th digit represents the type of
unit.
Displays the recirculation mode that has
been selected on the front panel.
Display method
Display of the flame detection AD value
0~255
ex) 200
Exhaust gas temperature display
ex) 120°F
ex) Capacity 180, Condensing
Preheating not working
Internal pump, internal circulation
Internal pump, external circulation
Internal pump, intelligent preheating
External pump, external circulation
Internal pump and external pump, internal circulation
Internal pump and external pump, external circulation
Internal pump and external pump, intelligent preheating
Version 2.21