WARNING: Field wiring connections and electrical grounding must comply with local codes, or
in the absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFPA 70,
or in Canada, Canadian Electrical Code, CSA C22.1 Part 1.
WARNING: Shock
hazard line voltage is
present. Before servicing
the water heater, turn off
the electrical power to the
water heater at the main
disconnect or circuit
breaker. Failure to do so
could result in severe
personal injury or death.
CAUTION: Label
all wires prior to
disconnection when
servicing controls. Wiring
errors can cause improper
and dangerous operation.
Verify correct operation
after servicing.
WIRING DIAGRAM
FAN
MOTOR
SOLENOID
GND
SV3
VALVE 3
BK
SOLENOID
SV2
VALVE 2
BK
SOLENOID
SV1
VALVE 1
BK
GAS INLET
SOLENOID
SV0
VALVE 0
W
W
RESISTOR
BK
IG
ELECTRODE
IGNITER
ANTI-FROST
HEATER
BK
BK
AC
G/YorG
120V
W
W
FUSE(3A)
GND
Electrical Connection
POWER CORD:
The electric power supply requirement
●
for this water heater is 120 VAC/60HZ,
2 Amps .
The water heater comes with a three (3) pin
●
power supply cord . Use only a power outlet
with a ground terminal .
The installation of an GFCI (Ground Fault
●
Circuit Interrupter) is recommended .
Keep any excess of the power supply cord
●
on the outside of the water heater .
If local codes require hardwiring, see
●
instructions for "Hardwiring the Electrical
Connections" .
CONNECTOR FOR CHECKING
THERMOELECTROMOTIVE FORCE
THERMOCOUPLE
5
FM
R BK
W
Y
BL
G
6
5
4
3
2
1
G/Y
CIRCUIT
BOARD
LED
BK
BL
6
5
4
BK
K
R
3
2
1
BK
W
Y
7
6
5
4
3
2
GY
GY
1
4
3
R
H
1
2
W
W
W
W
BK
W
J
I
OVER HEAT
W
LIMITER
W
ON
W
R
OFF
1 2 3 4
ON
OFF
1
2 3 4
2
2
SW1
SW2
1
1
Q
P
MIN
MAX
BUTTON
BUTTON
M
W
4 3 2 1
F
A
(
)
5
USUALLY
4
DISCONNECTED
3
2
1
BL
W
Y
R
BK
C
BK
B
9
R
BK
BK
8
8
U
R
R
7
7
G
G
6
6
2
Y
Y
5
5
1
BL
BL
4
4
O
O
3
3
3
W
W
2
2
2
BR
BR
1
1
1
S
BL
D
BL
E
BR
WATER
BK
FLOW
SENSOR
R
HARDWIRING
THE ELECTRICAL CONNECTIONS:
Wiring should be carried out by a qualified
●
electrician in accordance with local codes .
The water heater requires 120 VAC/60Hz and
●
should be properly grounded .
DO NOT connect grounding wire to water
●
pipes, gas pipes, telephone cables, lightning
conductor circuits and to grounding circuit
of other equipment that carry a ground-fault
interrupter .
An ON/OFF switch must be provided and
●
installed for the incoming 120VAC power .
Wire the water heater exactly as shown
●
below . A wiring diagram is also found
inside of the cover panel .
A green screw is provided in the enclosure
●
for a grounding connection .
Connect the live wire to black leg wire and
●
the neutral wire to the white neutral wire .
COLOR CODE
R:RED
DIP
W:WHITE
SWITCH1
BR:BROWN
BK:BLACK
BL:BLUE
DIP
SWITCH2
GY:GRAY
G:GREEN
O:ORANGE
SW3
Y:YELLOW
ADJUSTER
G/Y:GREEN/YELLOW
BUTTON
FLAME ROD1
BK
BK
PROGRAM
CHIP
BK
-
WATER BY-PASS
WATER VOLUME
CONTROL MOTOR
CONTROL MOTOR
LIMITER
LIMITER
MOTOR
BK
R Y O W BR
G BL
BK
R Y O W BR
G
BL
8
8
MAIN
BATH
REMOTE
REMOTE
CONTROL
CONTROL1
(UMC-117)
(USC1-117)
R4
AMBIENT
AIR
THERMISTOR
R3
WATER
INLET
THERMISTOR
R2
HEAT
EXCHANGER
THERMISTOR
R1
OUTLET
HOT WATER
THERMISTOR
P.G.F.R
PSV
VALVE
MOTOR
BATH
REMOTE
CONTROL2
(USC2-117)
31-92028 0
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