Install Of Two-Pipe Cpvc/Pvc Gas Vent/Combustion Air System Connector; Vent/Combustion Air Pipe Length - Burnham ALP105 Installation, Operating And Service Instructions

Table : Vent/Combustion air Pipe Length
3" Combustion Air Pipe
Boiler
(Equivalent Length)
Model
Min.
21-7/8 In.
ALP080
21-7/8 In.
ALP105
ALP150 ---
ALP210 ---
ALP285 ---
ALP399 ---
Combustion Air/Vent, Equivalent Length Work Sheet
This sheet is supplied to assist in vent/combustion air, equivalent length calculating
Combustion air
90° elbow(s) PVC
Quantity =
45° elbow(s) PVC
Quantity =
Straight pipe PVC
Length ft. =
a.+b.+c. =
Total*
* Total cannot exceed 60 equiv. ft. length.
Vent and combustion air terminals do not count towards total equiv. ft.
Note: For one or two family dwellings, fire
resistance rating requirement may not need to be
met, but is recommended.
7. Plan venting system to avoid possible contact with
plumbing or electrical wires. Start at vent connector
at rear of boiler and work towards vent termination.
8. Design the Vent System to allow a 3/8" of thermal
expansion per 10 feet of CPVC/PVC pipe. Runs of
20 ft. or longer that are restrained at both ends must
use an offset or expansion loop. Refer to Figure 3.
9. Follow all manufacturer instructions and warnings
when preparing pipe ends for joining and using the
primer and the cement.
D.
Installation of Two-Pipe CPVC/PVC Gas Vent/
Combustion Air System Connector
The boiler two pipe vent system connector for CPVC/
PVC and gasket are shipped inside the vent carton. The
4" Combustion Air Pipe
(Equivalent Length)
Max. Min.
60 Ft.
---
60 Ft.
---
21-7/8 In.
---
21-7/8 In.
---
32 In.
---
32 In.
---
x 5' = equiv. ft. a.
x 2.5' = equiv. ft. b.
equiv. ft. c.
x 1 =
equiv. ft.
3" Vent Pipe
(Equivalent Length)
Max. Min.
21-7/8 In.
---
21-7/8 In.
---
60 Ft. 21-7/8 In.
60 Ft. 21-7/8 In.
60 Ft.
---
60 Ft.
---
Supplied 30" straight CPVC
Length ft. = 2.5
Supplied 90° elbow CPVC
Quantity = 1
90° elbow(s) PVC
Quantity =
45° elbow(s) PVC
Quantity =
Straight pipe PVC
Length ft. =
a.+b.+c.+d.+e.=
Total*
vent connector mounting hardware - six (6) #8 x ½"
black oxide round head Phillips sheet metal screws - are
shipped inside Miscellaneous Part Carton.
1. Remove the vent connector and gasket from the vent
carton.
2. Locate six mounting screws.
3. Position the vent connector and gasket onto jacket
combination rear/bottom panel and insert vent
connector inner stainless steel vent pipe into the heat
exchanger vent outlet.
4. Align vent connector plate and gasket clearance
holes with rear/bottom panel engagement holes; then
secure the collar and gasket to rear/bottom panel
with six mounting screws. See Figure 4.
5. Flue temperature sensor, factory attached to the
boiler wiring harness, is secured to the boiler rear/
bottom panel with tape.
4" Vent Pipe
(Equivalent Length)
Max. Min.
60 Ft.
---
60 Ft.
---
60 Ft.
---
60 Ft.
---
32 In.
---
32 In.
---
Vent
2.5 equiv. ft. a.
x 1 =
x 5' = 5 equiv. ft. b.
x 5' = equiv. ft. c.
x 2.5' = equiv. ft. d.
equiv. ft. e.
x 1 =
equiv. ft.
Max.
---
---
---
---
60 Ft.
60 Ft.
1