Navien NPE-240A Service Manual

System Details 53
Power Switch
CON5
CON6 CON7
CON8
CON10
CON1
CON4
CON2
CON3
CON11
TB1
BK BKBK
BKBK BKBK BKBK BKBKBK
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
M
Dual Venturi
W
BR
B
IG
Spark
Electrode
Flame Rod
BR B BK
FM
Fan Motor
R O
W
Y
BK
MGV
Main Gas Valve
W
Y R
BK
Neutral(W)
Hot(BK)
Ground (GY)
GY
Power Cord
W
Fuse (5A)
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
Optional
If any of the original wires as supplied with the water heater must be replaced, they must be replaced with their equivalent.
CON9
Mixing Valve
Feedback
M
MIX
BR
O R B Y R
W BK
Freeze Protect S/W
Anti-Frost Heater
M
Front Panel
* NPE-180S/ 210S/ 240S only
[NPE-150S/180S/ 210S/ 240S]

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