Electrical Connections - Bradford White EFR160T120 Series Installation & Operating Manual

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.
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
CONTROL
LOWER
7
SENSOR
& ECO
4
R
W
R 1
1 2 3
SENSOR 1
1
2
3 BK
24V
CONTROL
DISPLAY
1
2
SECONDARY
BL Y
1
24V
LOAD
2
3
LINE
120V
TRANSFORMER PRIMARY
SECTION VIII: ELECTRICAL CONNECTIONS
BR
8 9
24V
BL
5 6
GAS VALVE
2 3
R GY
24V
R
R
GY GY
GY GY
6 PIN CONNECTOR
TO PRESSURE
W 1
SWITCH HARNESS
E-COM
R 2
120V
GN
4 1
3
BK
5
2
M
E-COM
1
W
6 3
2
COMBUSTION
3
INDUCER BLOWER
CONTROL BOARD
(399,999 BTU/HR MODELS ONLY)
LINE IN
1
BK
2
TOGGLE
3
SWITCH
GN
LIGHT
GN
4 G
W
Figure 25. Wiring Diagram and Schematic
WARNING
CAUTION
BLACK
MV
120 VOLTS
PV/MV
P.S. (N.C.)
R
COLL HIGH-LIMIT
LIMIT (N.C.)
W
O
SENSE
HIGH VOLTAGE
SPARK
ANODE RODS
NOTE:
IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH THE APPLIANCE
BK MUST BE REPLACED. IT MUST BE REPLACED WITH 18. GA STRANDED
105°C WIRE OR ITS EQUIVALENT.
L1 SI UN DES CONDUCTEURS D'ORIGINE FOURNI AVEC L'APPAREIL DOIT
ETRE REMPLACE UTILISER UN CONDUCTEUR 18 GA STRANDED 105°C
N
GND
OU L'EQUIVALENT.
120 VOLTS AC
38
WIRING DIAGRAM
GROUND
BLOWER MOTOR
BLOWER RELAY
120 VAC
Y
P.S. TSTAT ECO NC
COLLECTOR
LIMIT
DISPLAY
GAS VALVE
2 R
5 R
M
BLOWER RELAY COIL
(BOARD CIRCUIT)
HIGH VOLTAGE
SPARK
WHITE
120 VOLTS
M
W
24 V.
PV
MV
SENSE
W
O