A.O. Smith BFC - 80 Benutzerhandbuch

Instruction manual BFC

43

gis

Legend
Only applicable numbers are 
mentioned.
1. pressure reducing valve 

(mandatory)

3. T&P valve (mandatory)
4. stop valve (recommended in 

pipe C and mandatory in pipe A)

5. non-return valve (mandatory)
6. circulation pump (optional)
9. drain valve
10. manual gas valve (mandatory)
11. service stop valve
12. temperature gauge (optional)
13. condensation drainage
14. hot water draw-off points
15. expansion valve (mandatory)
16. expansion vessel (mandatory)
17. 3-way aeration valve 

(recommended)

18. water tank
19. float valve
A. cold water supply
B. hot water supply
C. circulation pipe
D. gas supply
E. overflow pipe
H. overflow pipe

UNVENTED

VENTED

14

B

17

C

C

10

3

D

13

9

4

6

4 5

14

11

4

12

A

4

E

H

18

19

14

A

4

5

C

1

15

16

13

4

5

6

4

14

14

14

10

D

B

3

12

9

11