Napoleon Ascent BHD4PN Installation And Operation Manual page 11

This template must be used in conjunction with templates 7.2.1 or 7.2.2, depending on termina-
tion shape (i.e. round, or round and square). See appropriate templates folder.
For optimum fl ame appearance and appliance performance, keep the vent length and number of elbows to
a minimum.
The air terminal must remain unobstructed at all times. Examine the air terminal at least once a year
to verify that it is unobstructed and undamaged.
Rigid and fl exible venting systems must not be combined. Different venting manufacturer components
must not be combined.
These vent kits allow for either horizontal or vertical venting of the appliance. The maximum allowable horizontal
run is 20 feet (6.1m). The maximum allowable vertical vent length is 40 feet (12.2m). The maximum number of
vent connections is two horizontally or three vertically (excluding the appliance and the air terminal connections)
when using fl exible venting.
Horizontal runs may have a 0" (0mm) rise per foot/meter however for optimum performance it is recommended
that all horizontal runs have a minimum 1/4" (21mm) rise per foot/meter using fl exible venting. For safe and
proper operation of the appliance, follow the venting instructions exactly.
A terminal shall not terminate directly above a sidewalk or paved driveway which is located between two single
family dwellings and serves both dwellings. Local codes or regulations may require different clearances.
Do not allow the inside liner to bunch up on horizontal or vertical runs and elbows. Keep it pulled tight. A 1¼"
(31.8mm) air gap all around between the inner liner and outer liner is required for safe operation.
FOR 4" / 7" (USE REDUCER KIT A4758AK TO TRANSITION FROM 5" / 8" TO 4" /7" VENTING)
When using Wolf Steel 4"/7" venting components, use only approved Wolf Steel rigid / flexible components with the following
termination kits: wall terminal kit GD222R, or 1/12 to 7/12 pitch roof terminal kit GD110, 8/12 to 12/12 roof terminal kit GD111,
flat roof terminal kit GD112 or periscope kit GD201 (for wall penetration below grade). With flexible venting, in conjunction with the
various terminations, use either the 5 foot (1.5m) vent kit GD220 or the 10 foot (3.1m) vent kit GD330.
When using Wolf Steel 5"/8" venting components, use only approved Wolf Steel rigid / flexible components with the following
termination kits: wall terminal kit GD422R-1, or 1/12 to 7/12 pitch roof terminal kit GD410, 8/12 to 12/12 roof terminal
kit GD411, flat roof terminal kit GD412 or periscope kit GD401 (for wall penetration below grade). With flexible venting, in
conjunction with the various terminations, use either the 5 foot (1.5m) vent kit GD420 or the 10 foot (3.1m) vent kit GD430.
venting requirements
7.2C
W415-1285 / G / 04.27.18
EN
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