Wolf COB Technical Manual And Installation Instructions page 63

Excentric, room-sealed flue C53 (example)
DN 80 and DN 110
Install the balanced flue distributor 29 mm excentrically (29) for
separate balanced flue on the oil condensing boiler.
Install the horizontal flue with a fall of approx. 3° (6 cm/m) towards
the boiler. Route the horizontal air supply with a 3° fall towards
the outside – install the air inlet with wind protection; permissible
wind pressure at the air inlet 90 Pa. The burner will not operate
with higher wind pressure.
B23 open flue system and B33 (example)
DN 60/100, DN 80/125 and DN 110/160
1 Oil condensing boiler
2 Connection adaptor with test nipple
for air and flue gas
(included in COB standard delivery)
4 Balanced flue
500 mm
1000 mm
2000 mm
5 Spacer clip (only if required)
10 87° inspection piece
1 6 Pipe collar
22 Connection to
B33 flue chimney
250 mm length with air intake
23 support rail
24 87° support bend
25 Spacer
26 PP flue pipe
500 mm
1000 mm
2000 mm
27 Shaft cover
29 Balanced flue distributor
30 Air intake pipe
31 Bend 87°
32 87° bend with inspection port
33 PP outlet
3062547_201802
36 Technical information
16
approx. 1500 mm (COB-15/20/29)
approx. 1700 mm (COB-40)
16 30 31 32
33
29
2
1
Secondary
ventilation
C53
4
10
2
1
Secondary ventilation
B33
32
2
1
B23
27
33
26
26 16
24
23
27
33
26
5
22 16
25
24
23
27
33
26
26 16
25
24
23
Secondary
ventilation
63