Table of Contents
Advertisement
WIRING DIAGRAM
Flow
Adjust
Valve
R
Y
y B
a p
s s
W
Valve
BL
BR
Y
W
Y
O
Air damper
W
O
R
R
BR
BR
W
Y
FM
BL
R
W
Pump
BL
131
R
SV3
R
R
LB
LB
SV2
G
G
BR
SV1
BL
BR
MV
BL
BL
Hi-
BL
BL
limit
721
BL
BL
Igniter
BL
BL
rod
O.H.C.F
BK
BK
Thermostat
BK
Y
Y
BK
Y
BK
Y
Thermostat
Y
Y
Heater
Y
Y
Heater
Figure 7: Wiring Schematic for 160X3P, 180X3P, and 199X3P Models
For instructions on how to use checkpoints during troubleshooting, refer to the water heater's maintenance sheet. The
maintenance sheet is stored in a pouch on the inside of the water heater's front cover.
28
•
On-Demand Water Heater Service Handbook for X3P Models
R
R
BK
BK
R
Y
BR
W
BL
BR
715
715
708
715
9
103
53
73
708
Y
738
P
P
IG
P
P
737
Ground
Y
W
BK
BK
SW
W BK
Heater
Surge
Heater
box
W
BK
G
Heater
Ground
Heater
BK
W
R
O
G
W
G
Y
R
Y
BL
BK
BL
R
715
715
715
715
715
714
709
W
W
BK
BK
Y
G
G
W
BK
Easy-Link
Ground
Flame
rod
BK: BLACK
120 VAC
W: WHITE
LB: LIGHT BLUE
BK
Flow
W
R
Sensor
R
R
Pressure
W
W
BK
BK
Sensor
Increase button
MAX button
MIN button
Decrease button
W
Exhaust thermistor
715
ON
715
ON
DIP switches
ON
W
Built-in
722
BL
R
controller
BK
W
BK
BK
BK
Return thermistor
Heat exchanger
BK
BK
thermistor
BK
BK
Inlet thermistor
BK
BK
Outlet thermistor
R: RED
BL: BLUE
G: GREEN
O: ORANGE
P: PURPLE
W
Remote
controller
Y: YELLOW
BR: BROWN
Advertisement
Table of Contents
