AMP AMPW 1000, Installation, Operation And Maintenance Manual

Page: 20 / 72

20
AMPW 400-1000L I&O Manual
NOTICE NOTICE
Do not exceed maximum vent/combustion air
system length.
VII . Venting
(continued)
Table 6: Vent and Combustion Air Pipe Diameters and Maximum Lengths
Table 7: Equivalent lengths of Vent and Combustion Air Components
Component
Combustion Air Vent
Equivalent
Length Per
Piece
x Quantity =
Subtotal
Equivalent
Length
Equivalent
Length
Per Piece
x Quantity =
Subtotal
Equivalent
Length
Straight Pipe x = A x = D
90° Elbow x = B x = E
45° Elbow x = C x = F
Combustion Air Total
Equivalent Length =
Vent Total
Equivalent Length
=
Notes:
1. Total equivalent length cannot exceed maximum equivalent length shown in Table 6.
2. Combustion air and vent terminations do not count towards total equivalent length.
AMP
Model
Combustion Air Length Vent Length
Pipe Dia.
in. (mm)
Minimum
eq. ft. (m)
Maximum
eq. ft. (m)
Pipe Dia.
in. (mm)
Minimum
eq. ft. (m)
Maximum
eq. ft. (m)
400 4 (100) 0 100 (30) 4 (100) 5 (1.5) 100 (30)
500 4 (100) 0 100 (30) 4 (100) 5 (1.5) 100 (30)
650 6 (150) 0 100 (30) 6 (150) 5 (1.5) 100 (30)
800 6 (150) 0 100 (30) 6 (150) 5 (1.5) 100 (30)
1000L 6 (150) 0 100 (30) 6 (150) 5 (1.5) 100 (30)
NOTE:
Contact factory for assistance on maximum vent length applications.
This table applies to all listed vent/combustion air system options.
Table 8: Vent and Combustion Air Equivalent Length Calculation Worksheet
Diameter 4 in. (100 mm) 6 in. (150 mm)
90
°
Elbow 5 ft. (1.5 m) 8 ft. (2.4 m)
45° Elbow 2 ft. (0.6 m) 3 ft. (1 m)