A.O. Smith BFC - 28 Electrical diagram BFC, Terminal Strip Connections Controller Connections

Page 5

Cyclone BFC

Electrical diagram BFC 28-60

TERMINAL STRIP CONNECTIONS

CONTROLLER CONNECTIONS

 

 

Earth

J1

Connector for display to controller

 

 

N

Neutral

J2

Connector for power supply to

L1

Phase input of controller

 

controller

L2

Phase input of isolating

J19

Connector for extra error signal

 

 

transformer (primary side)

J20

Connector for gas control

L3

Phase output of isolating

J21

Connector for program-

 

 

transformer (secondary side)

 

controlled pump

L4

Phase input of program-controlled

J24

Connector for fan

 

 

pump

JP2

Connector for ionisation rod and

L5

Phase input of continuous pump

 

glow igniter

 

 

 

JP3

Connector for temperature

COMPONENTS

 

sensor T2

A

Controller

JP4

Connector for dummy

B

Ionisation rod

JP5

Connector for temperature

C

Glow igniter

 

sensor T1

D

Gas control

JP6

Connector for selection resistor

E

Burner earth connection

 

and pressure switch

F

Extra ON mode switch

JP8

Connector for extra

G

Continuous pump

 

ON mode switch

H

Program-controlled pump

 

 

 

 

 

 

 

J

Extra error signal

F1

Fuse

K

Isolating transformer

F2

Fuse

L

Double-pole mains switch

 

 

 

 

 

 

 

M

ON/OFF switch control

 

 

 

 

 

 

 

N

Display/Flat cable

 

 

 

 

 

 

 

O

Fan

 

 

 

 

 

 

 

P

Temperature sensor

Colour cables

 

 

(T2 - bottom of tank)

1 = brown

 

 

 

 

 

Q

Dummy

2 = blue

 

 

 

R

Temperature sensor

3 = yellow/green

 

 

 

 

 

(T1 - top of tank)

4 = black

 

 

 

 

 

S

Selection resistor

5 = white (flat cable)

 

 

 

 

 

 

T

Pressure switch

6 = grey/beige

 

 

 

 

 

 

 

 

Cyclone BFC

Electrical diagram BFC 80-100

TERMINAL STRIP CONNECTIONS

 

 

Earth

N

Neutral

L

Phase input of controller

L1

Phase output of isolating

 

 

transformer ( secundary side)

L2

Phase input of isolating

 

 

transformer ( primary side)

L3

Phase input of program-

 

 

controlled pump

L4

Phase input of frequency

 

 

controller

L5

Phase input of continuous pump

COMPONENTS

A

Controller

B

Ionisation rod

C

Glow ignitor

D

Gas control

E

Burner earth connection

F

External ON-mode switch

G

Program-controlled pump

H

External error-signal

J

Isolating transformer

K

Double-pole mains switch

L

Controller 0/1 switch

M

Display/Flat cable

N

Fan

O

Temperaturesensor

 

 

(T2-bottom of tank)

P

Dummy

Q

Temperaturesensor

 

 

(T1-top of tank)

R

Selection resistor

S

Pressure switch

T

Potentiostat

U

Frequency controller

V

Argus-link interface

W

Electric anodes

X

Signaling for electric anodes

Y

Mains choke and EMC filter

CONTROLLER CONNECTIONS

J2

Connector for power supply

 

to controller

J19

Connector for external error-signal

J20

Connector for gas-control

J21

Connector for program

 

controlled pump

J36

Connector for display

 

to controller

J39

Connector for fan controlled signal

JP2

Connector for ionisation rod and

 

glow ignitor

JP3

Connector for temperature

 

sensor T2

JP4

Connector for dummy

JP5

Connector for temperature

 

sensor T1

JP6

Connector for selection resistor,

 

pressure switch and anode

 

signaling

JP8

Connector for extra

 

ON-mode switch

F1

Fuse

F3

Fuse

Colour cables

1= brown

2= blue

3= yellow/green

4= black

5= white (flat cable)

6= grey/beige

7= red

8= green

Image 5
Contents Cyclone BFC Gas data natural gas 2H G20 Technical specificationsDimensions Installation diagrams Terminal Strip Connections Controller Connections Electrical diagram BFCMinimum space requirements Installation options

BFC - 100, BFC - 50, BFC - 28 specifications

A.O. Smith is a leading manufacturer in the water heating industry, known for its innovative technologies and high-quality products. Among their impressive line of offerings, the BFC series stands out with three models: the BFC - 28, BFC - 50, and BFC - 100. Each model is designed to meet various heating needs while providing efficiency and reliability.

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