Navien NPE-240A Service Manual

Version 2.21
44 NPE Service Manual
Item Description Display method
(J)Flame condition
Flame detection current AD value display
Flame On: 8bit AD value less than 70
Flame Off: 8bit AD value more than 175
Display of the flame detection AD value
0~255
ex) 200
(K)Exhaust gas
temperature
Current exhaust gas temperature display
Exhaust gas temperature display
ex) 120°F
(L)Model and capacity
Currently set model and capacity display
The 2nd & 3rd digits represent the model
and the 4th digit represents the type of
unit.
ex) Capacity 180, Condensing
(M)Recirculation setting
information
* 2
nd
letter: Pump
I: Internal Pump
E: External Pump
B: Both (Internal &
External) Pump
* 3
rd
, 4th letters:
Circulation, Intelligent
Preheat
EC: External Circulation
IC: Internal Circulation
IT: Intelligent Preheat
Displays the recirculation mode that has
been selected on the front panel.
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

Navien NPE-240A Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Energy Factor	0.97
Energy Efficiency	97%
Voltage	120V
Ignition Type	Electronic
Maximum Input	199, 900 BTU/h
Water Connection Size	3/4"
Gas Connection Size	3/4"
Warranty	15-year on heat exchangers, 5-year on parts, 1-year on labor
Dimensions	17.3" W x 13.2" D x 27.4" H