Weil-McLain GOLD CGs - Manual (Page 13)

V V V V Vertical Direct V ertical Direct V ertical Direct V ertical Direct V ertical Direct Venting — V enting — V enting — V enting — V enting — Venting Supplement enting Supplement enting Supplement enting Supplement enting Supplement
Part Number 550-141-873/0502 13
Figure 11 Typical vent/air piping Table 4 CGs-3 and CGs-4
Maximum connector pipe length, vent or air:
•
Combustion air connector pipe
• Vent connector pipe
87304
D
L
L
= B
-vent length
A
B
C
Elbow
Elbows
V
ent piping
Combustion air piping
A + B
C + D
= Combustion air
connector piping length
= Vent connector piping length
Condensate
drain line
CGs-3 and CGs-4
“B-Vent”
length
(feet)
L
Total number of elbows
1 2 3 4 5 6 7
Max. length from boiler to “B-Vent”
5 50 43 36 29 22 15 8
10 45 38 31 24 17 10 3
15 40 33 26 19 12 5 --
20 35 28 21 14 7 -- --
25 30 23 16 9 2 -- --
30 25 18 11 4 -- -- --
Note: Combustion air connector pipe length = A + B
Vent connector pipe length = C + D
CGs-5 and CGs-6
“B-Vent”
length
(feet)
L
Total number of elbows
1 2 3 4 5 6 7
Max. length from boiler to “B-Vent”
5 40 33 26 19 12 5 --
10 35 28 21 14 7 -- --
15 30 23 16 9 2 -- --
20 25 18 11 4 -- -- --
25 20 13 6 -- -- -- --
30 15 8 1 -- -- -- --
Note: Combustion air connector pipe length = A + B
Vent connector pipe length = C + D
Table 5 CGs-5 and CGs-6
Maximum connector pipe length, vent or air:
•
Combustion air connector pipe
• Vent connector pipe