is

Main control components

A

Controller

 

 

B

Flame probe

 

 

C

Hot surface igniter

 

 

D

Gas control

 

 

E

Burner earth connection

 

 

F

Extra ON mode switch

 

 

G

Continuous pump

 

 

J

Program-controlled pump

 

 

K

Extra error signal connection

 

 

L

Double-pole isolator

 

 

M

Controller 0/I switch

 

 

N

Display

 

 

O

Fan

 

 

P

Temperature sensor (T2 - bottom of

 

tank)

 

 

Q

Dummy

 

 

R

Temperature sensor (T1 - top of

 

tank)

 

 

S

Selection resistor

 

 

T

Pressure switch

 

 

U

Solar heating system controller

 

(BUS-link)

 

 

 

 

F1

Fuse

 

 

F3

Fuse

 

 

Main controller terminal strip

1

X5

BUS-link

2

X6

 

 

 

 

3

-

n.a.

 

 

 

4

-

n.a.

 

 

 

5

X3

External ON/OFF

6X4

7

8L5 Continuous pump

9N

10N

11L4 Program-controlled pump

12

13X2

14X1 Extra error signal connection

15

16N

17L2 Isolating transformer (primary)

18

19N

20L3 Isolating transformer (secondary)

21

22

23L1 Power

24N

Instruction manual SGE

103

Page 103
Image 103
A.O. Smith SGE Burner earth connection, Extra on mode switch, Continuous pump, Program-controlled pump, Display, BUS-link