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.

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”..

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..

WIRING DIAGRAM

 

 

CONNECTOR FOR CHECKING

 

 

 

 

 

 

 

 

 

COLOR CODE

 

 

THERMOELECTROMOTIVE FORCE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THERMOCOUPLE

W

 

 

 

 

 

 

ON

DIP

 

R:RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W:WHITE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN

FM

5

 

 

 

 

 

R

 

 

 

1 2 3

4

OFF

SWITCH1

 

BR:BROWN

 

 

 

 

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

BK:BLACK

 

 

 

 

 

 

 

R

BK W YBL

 

 

 

 

 

 

 

 

 

 

 

DIP

 

BL:BLUE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GY:GRAY

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

OFF

SWITCH2

 

 

 

 

 

 

 

 

6 5 4 3 2 1

 

 

 

2

2

 

1 2 3

4

 

 

G:GREEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SW1

SW2

 

SW3

 

O:ORANGE

 

 

 

 

 

 

G/Y

 

 

 

 

 

 

 

 

Q1

P 1

 

 

 

 

SOLENOID

SV3

 

GND

 

 

 

 

 

 

 

 

 

MIN

MAX

ADJUSTER

 

Y:YELLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G/Y:GREEN/YELLOW

VALVE 3

BK

 

 

 

 

 

 

 

 

CIRCUIT

 

 

 

BUTTON

BUTTON

BUTTON

 

SOLENOID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SV2

 

 

 

 

 

 

 

 

BOARD

 

 

 

 

 

 

 

 

 

 

 

R4

 

AMBIENT

VALVE 2

 

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

BK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

FLAME ROD1

 

 

 

AIR

SOLENOID

 

 

 

 

 

 

 

 

 

LED

 

 

4 3 2 1

 

 

 

 

 

 

 

THERMISTOR

SV1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BK

R3

 

WATER

VALVE 1

BK

 

 

 

 

 

 

 

 

 

 

F

 

 

A

 

 

 

 

 

GAS INLET

 

 

 

 

 

 

BK

BL

 

(

 

 

)

5

 

 

 

 

 

 

 

INLET

SV0

 

 

 

 

 

 

 

USUALLY

 

 

 

 

 

 

 

 

 

THERMISTOR

SOLENOID

 

 

 

 

 

 

6 5 4

 

DISCONNECTED

4

 

 

 

PROGRAM

 

BK

R2

 

HEAT

VALVE 0

 

 

 

W

BK

 

R

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

3 2

1 K

 

 

 

 

 

 

2

 

 

 

CHIP

 

 

 

 

EXCHANGER

 

 

RESISTOR W

BK

 

 

 

W

Y

7

BL

 

 

 

 

1

 

 

 

 

 

BK

R1

 

THERMISTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTLET

 

 

 

 

 

 

 

 

 

 

 

6

W

 

 

 

 

 

 

 

 

 

 

 

 

 

HOT WATER

 

 

 

 

 

 

 

 

 

 

 

5

Y

 

 

 

 

 

 

 

 

 

 

-

 

P.G.F.R

THERMISTOR

 

BK

 

IG

 

 

 

 

 

 

 

4

R

 

 

C

 

 

 

 

 

 

 

PSV

 

 

 

 

 

 

 

 

 

 

3

BK

 

 

 

 

 

 

 

 

 

+

 

VALVE

 

ELECTRODE

IGNITER

 

 

GY GY

 

 

2

BK

 

 

9

 

B

 

 

 

WATER BY-PASS

WATER VOLUME

 

 

 

 

 

 

 

 

1

R

 

 

BK

8

BK

 

 

CONTROL MOTOR

CONTROL MOTOR

 

 

 

 

 

 

 

 

4

3

 

 

R

 

 

U

8

 

 

LIMITER

MOTOR

LIMITER

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

7

R

7

R

 

 

 

 

ANTI-FROST

 

 

 

 

 

2

1 H

 

 

 

2

6

G

6

G

 

 

BK R G Y BL O W BR

BK R G Y BL O W BR

 

 

 

 

 

 

W

W

 

 

 

 

 

1

5

Y

5

Y

 

 

 

HEATER

 

 

W

 

 

 

 

 

 

 

3

4

BL

4

BL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

O

3

O

 

 

 

 

 

 

 

 

 

 

 

 

W

 

 

 

 

 

 

 

 

 

2

2

W

2

W

 

 

8

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 1

BR

1

BR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

 

 

 

 

 

 

 

 

 

 

 

 

AC

BK

 

BK

 

BK

 

 

 

 

 

 

 

 

 

 

 

D

 

BL

 

 

 

 

 

 

 

G/YorG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120V

W

 

W

FUSE(3A)

W

J

 

I

 

 

 

 

 

 

 

 

E

 

BL

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

MAIN

BATH

 

BATH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BR

 

 

WATER

 

 

REMOTE

REMOTE

 

REMOTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

CONTROL1

CONTROL2

 

 

 

 

 

 

OVER HEAT

 

 

W

 

 

 

BK

 

 

FLOW

 

 

(UMC-117)

(USC1-117)

(USC2-117)

 

 

 

 

 

 

LIMITER

 

 

W

 

 

 

R

 

 

SENSOR

 

 

 

 

 

31-92028 0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Rheem PH-25RDVS, P), RUTG-66DV, RMTG-66DV, ECO-180DV warranty Electrical Connection, Power Cord