Navien NPE-240A Service Manual

Version 2.21
52 NPE Service Manual
4.8 Wiring Diagram
CON5
CON6 CON7
CON8
CON10
CON1
CON4
CON2
CON3
CON11
TB1
BK BK
Front Panel
BK BKBKBKBKBKBK BKBK BK
BK BK
High Limit S/W
APS
R
W
BK
Air Pressure Sensor
Flow Sensor
R
W
BK
B B
Inlet1 Thermistor
B B
B B
Outlet2 Thermistor
B B
B B
Inlet2 Thermistor
B B
B B
Outlet1 Thermistor
B B
B B
Exhaust
Thermistor
B B
Water Adjustment Valve
Feedback
M
WAV
BR O R B Y R W BK
Pump
Y
W
M
Dual Venturi
W BR
B
IG
Spark
Electrode
Flame Rod
BR B BK
FM
Fan Motor
R OW
Y
BK
MGV
Main Gas Valve
W
Y R
BK
Neutral(W)
Hot(BK)
Ground(GY)
GY
Power Cord
W
Fuse(5A)
Power Switch
GY
GY
Ground
Pump
Y
W
Ground
External
Color Code
B O R W Y BK BR GY
: Blue : Orange : Red : White : Yellow : Black : Brown : Green/Yellow
A B C D
E
F
G
H K
J
L
I
I
f an
y of the o
riginal wires as
supplied with the
water heater must be
r
eplaced
, they must be
replaced
with their equivalent.
Optional
CON15
BK BK
ComfortAir+
BK BKBKBKBKBKBK BKBK BK
M
N
[NPE-180A/ 210A/ 240A]

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