SL 26-260 G3
Intake/Exhaust
Maximum Equivalent Length
45° elbow
allow 3 ft for each elbow
PP 87-90° elbows
allow 8 ft for each elbow
3-inch Stainless Sidewall
Terminal IBC (P-257)
Intake: No additional allowance required
Exhaust: Allow 20 ft
3-inch PP flexible pipe
Limited to a maximum of 60 ft
Allow 3.3 x actual length (e.g., 10 feet of 3-inch flexible pipe
x 3.3 = 33 feet of rigid pipe)
Table 5
Maximum air intake pipe and maximum exhaust vent length - SL 26-260 G3
SL 40-399 G3
Intake/Exhaust
Maximum Equivalent Length
4-inch rigid pipe
200 ft (each side)
90° elbow
allow 8 ft for each elbow
90° long sweep elbow
allow 5 ft for each elbow
45° elbow
allow 3 ft for each elbow
PP 87-90° elbows
allow 8 ft for each elbow
3-inch Stainless Sidewall Terminal
(SST) IBC P-257
Intake: No additional allowance required
Exhaust: Allow 65 ft
3-inch CPVC (to adapt to the SST)
for each 1 ft allow 3.2 ft equivalent
4-inch PP flexible pipe
Limited to 160 ft maximum
Allow 1.2 x actual length (e.g., 10 feet of 4-inch flexible
pipe x 1.2 = 12 feet of rigid pipe)
Table 6
Maximum air intake pipe and maximum exhaust vent length - SL 40-399 G3
Notes
Unused intake travel cannot be added to the exhaust. Unequal intake and exhaust
piping is allowed.
Support should be provided for intake and vent piping, particularly for horizontal runs
(follow local code).
Example of equivalent length calculations for an SL 40-399:
An SL 40-399 G3 can be sited up to 200 feet (actual vent length allowance) from the vent
25
3.7.4 Direct vent
Summary of Contents for SL Series
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Page 12: ...Figure 5 Top view SL 40 399 G3 Figure 6 Bottom view SL 40 399 G3 8 Section Specifications...
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Page 64: ...Figure 40 Electric wiring connections 60 Section Installation...
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Page 110: ...Internal wiring diagram Figure 46 Internal wiring diagram 106 Section Appendices...
Page 111: ...Sequence of operations Figure 47 Sequence of Operation 107 Sequence of operations...