Bradford-White Corp EFR160T120 Section Viii Electrical Connections, Wiring Diagram and Schematic

SECTION VIII: ELECTRICAL CONNECTIONS

WARNING

Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

All electrical wiring must be installed and grounded in accordance with local codes, or in the absence of local codes, the National Electrical Code, ANSI/NFPA 70 and/or CSA C22.2 Electrical Code.

The water heater must be wired to a 120 VAC, 60 Hz, 15A power supply. The water heater must be wired on a separate circuit and breaker. If a flexible line cord and plug is permitted by local code, then provide a three wire grounding type receptacle within reach of the line cord provided on the control box. Do not plug the line cord into a receptacle that can have the power supply interrupted by a switch that is used to control lights or another appliance.

If wiring in conduit is required, cut the line cord close to the control board and make the appropriate wiring connections. Install an electrical conduit connector on the outside jacket of the water heater. Refer to the wiring diagram for the correct connections to each wire lead.

CAUTION

This water heater must be wired on a separate circuit. Failure to wire on a separate circuit may cause improper operation or failure of the electrical components of the water heater. Refer to the “Electrical Connections” section of the Installation and Operating Instructions Manual for complete instructions on electrical wiring and connections to the water heater.

Do not energize the electric circuit before the water heater tank is filled with water.

CONNECTION DIAGRAM

MV

BR

LOWER

CONTROL

7

8

9

SENSOR

24V

BL

PV/MV

& ECO

4

5

6

W

R

GAS VALVE

R

1

2

3

GY

1

2

3

R

R

P.S. (N.C.)

24V

R

R

GY

GY GY

SENSOR 1

GY

COLL HIGH-LIMIT

6 PIN CONNECTOR

LIMIT (N.C.)

W

1

TO PRESSURE

SWITCH HARNESS

1

E-COM

R

2

W

2

120V

O

3

BK

3

4

1

GN

SENSE

24V

5

2

BK

E-COM

M

CONTROL

1

W

6

3

2

COMBUSTION

DISPLAY

HIGH VOLTAGE

3

INDUCER

BLOWER

SPARK

1

CONTROL BOARD

(399,999 BTU/HR MODELS ONLY)

LINE IN

2

1

BK

ANODE RODS

SECONDARY

2

BL

Y

3

TOGGLE

24V

1

GN

SWITCH

LIGHT

BK

LOAD

4

GN

2

G

LINE

3

W

L1

120V

N

GND

TRANSFORMER

PRIMARY

120 VOLTS AC

BLACK GROUND	WIRING DIAGRAM	WHITE
120 VOLTS	BLOWER MOTOR	120 VOLTS

	M
BLOWER RELAY	120 VAC
Y	W

24 V.

P.S. TSTAT	ECO	NC
	COLLECTOR
		LIMIT
		DISPLAY
		GAS VALVE
2		R	PV
5		R	MV

M

BLOWER RELAY COIL

(BOARD CIRCUIT)

SENSE

W

O

HIGH VOLTAGE

SPARK

NOTE:

IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED. IT MUST BE REPLACED WITH 18. GA STRANDED

105°C WIRE OR ITS EQUIVALENT.

SI UN DES CONDUCTEURS D'ORIGINE FOURNI AVEC L'APPAREIL DOIT

ETRE REMPLACE UTILISER UN CONDUCTEUR 18 GA STRANDED 105°C OU L'EQUIVALENT.

Figure 25. Wiring Diagram and Schematic

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