Vermont Casting 7PDVS - Manual (Page 9)

9
DV Power Vent System
10003262
L
6
L
7
L
5
L
2
L
4
L
3
L
1
In the above example there are:
4 times 90 degrees elbows = 360 degrees
2 times 45 degrees elbows = 90 degrees
Total elbow degrees = 450 degrees
Installation is OK
A - Maximum 40FT of straight pipe.
B - Minimum 10FT of straight pipe for units up to 33,000BTU/h,
Minimum 15FT of straight pipe for units from 33,000BTU/h
to 40,000BTU/h.
C - Maximum 6FT of straight pipe.
A = L
1
+L
2
+L
3
+L
4
+L
5
+L
6
+L
7
B = L
1
+L
2
+L
3
+L
4
+L
5
C = L
6
+L
7
Venting Up: