B
B
B
A
A
A
A
A
A
A
English
IN ST AL LA TI ON MAN UA L
26
Table 5: Determining the permissibility of a flue gas discharge system when using a roof terminal
G20/G25/
G25.3/
G31
Total number of meters
horiz.
pipe length
Total no. of meters vertical and/or sloping pipe length
no bends
2 bends
3 bends
4 bends
5 bends
= Situation is not permissible
min. length 3 m; angles in vertical direction of flue gas discharge system allowed, bends not sharper than 45°
Situation
A
B
G20
50
90
Table 6: Conditions for the adjustment of the appliance with a roof terminal
G25/G25.3
50
90
G31
50
90
G20/G25/G25.3/G31
See Appendix 3, fig. 16.