Pavilion PV199DV Installation Manual page 24

Below items are required for connecting.
24
Venting the Combi Boiler
V
H
Slope the Vents
Upward
2PPS-X3L (DuraVent®)
2PPS-ADL (DuraVent®)
2 in. PVC/CPVC coupler
2 in. PVC/CPVC pipe
[Centrotherm® - Flex Through Chimney w/ Air
Intake (Only 3 in.)]
The vent length condition setting depends on
the flexible pipe length, the rigid pipe length and
number of elbows. Calculate an each ventilation
system equivalent length, then adjust the DIP
switch.
Vent
DIP
Maximum equivalent
length switch
vent length*
#7
condition
Exhaust vent
V (Vertical) + H (Horizontal):
Short
○
< 50 ft (15 m)
length
< 50 ft (15 m)
Exhaust vent
V (Vertical) + H (Horizontal):
Long
●
50 ft (15 m)–75 ft (22.5 m)
length
50 ft (15 m)–75 ft (22.5 m)
* The maximum vent length includes elbows.
• Equivalent vent length calculation example:
[Example 1]
- Vent Size: 3 in.
- V (Vertical length): 25 ft
- H (Horizontal length): 5 ft
- 87° elbow: 2
1 ft × 25 + 1 ft × 5 + 5 ft × 2 = 40 ft
Total equivalent length ≤ 50 ft
Select "Short length"
[Example 2]
- Vent Size: 3 in.
- V (Vertical length): 30 ft
- H (Horizontal length): 10 ft
- 87° elbow: 3
1 ft × 30 + 1 ft × 10 + 5 ft × 3 = 55 ft
50 ft < Total equivalent length ≤ 75 ft
Select "Long length"
●
ON = / OFF =
Equivalent
length
Flexible pipe:
1 ft (0.3 m)
Air Intake:
Rigid pipe:
1 ft (0.3 m)
90° elbow:
5 ft (1.5 m)
45° elbow:
3 ft (0.9 m)
Air Intake:
○