Napoleon BGD90NT-E Installation And Operating Instructions Manual Download

Page: 8 / 112

W415-1107 / 07.24.12

3.0 VENTING

This fi replaces uses 8” exhaust / 10” air intake vent pipe system.

Refer to the section applicable to your installation.

For safe and proper operation of the

replace follow the venting instruction exactly. Deviation from the minimum

vertical vent length can create dif

culty in burner start-up and/or carboning. Under extreme vent con

gurations,

allow several minutes (5-15) for the

ame to stabilize after ignition. Provide a means for visually checking the vent

connection to the

replace after the

replace is installed. Use a

restop, vent pipe shield or attic insulation shield

when penetrating interior walls,

oor or ceiling.

NOTE: If for any reason the vent air intake system is disassembled; reinstall per the instructions provided
for the initial installation.

7.3A

WARNING

RISK OF FIRE, MAINTAIN SPECIFIED AIR SPACE CLEARANCES TO VENT PIPE AND APPLIANCE.

IF VENTING IS INCLUDED WITH SPACERS THE VENT SYSTEM MUST BE SUPPORTED EVERY 3 FEET

FOR BOTH VERTICAL AND HORIZONTAL RUNS. USE SUPPORTS OR EQUIVALENT

NON-COMBUSTIBLE STRAPPING TO MAINTAIN THE REQUIRED CLEARANCE FROM

COMBUSTIBLES. USE WOLF STEEL LTD. SUPPORT RING ASSEMBLY W010-0370 OR EQUIVALENT

NON-COMBUSTIBLE STRAPPING TO MAINTAIN THE MINIMUM CLEARANCE TO COMBUSTIBLES

FOR BOTH VERTICAL AND HORIZONTAL RUNS. SPACERS ARE ATTACHED TO THE INNER PIPE AT

PREDETERMINED INTERVALS TO MAINTAIN AN EVEN AIR GAP TO THE OUTER PIPE. THIS GAP IS

REQUIRED FOR SAFE OPERATION. A SPACER IS REQUIRED AT THE START, MIDDLE AND END OF

EACH ELBOW TO ENSURE THIS GAP IS MAINTAINED. THESE SPACERS MUST NOT BE REMOVED.

3.1 VENTING LENGTHS AND COMPONENTS

For vent systems that provide seals on the inner exhaust

ue, only the outer air intake joints must be sealed

using a red high temperature silicone (RTV). This same sealant may be used on both the inner exhaust and
outer intake vent pipe joints of all other approved vent systems except for the exhaust vent pipe connection to the

replace

ue collar which must be sealed using the black high temperature sealant Mill Pac.

When using Wolf Steel venting components, use only approved Wolf Steel

exible components with the

following termination kits: wall terminal kit

GD622R

, or 1/12 to 7/12 pitch roof terminal kit

GD610

, 8/12 to 12/12

roof terminal kit

GD611

at roof terminal kit

GD612

. With

exible venting, in conjunction with the various

terminations, use either the 5 foot vent kit

GD620

or the 10 foot vent kit

GD630

For optimum fl ame appearance and fi replace 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.

The minimum allowable vertical vent length is 3 feet maximum allowable vertical vent length is 40 feet. The
maximum number of allowable 8” vent connections is three horizontally or vertically (excluding the

replace and

the air terminal connections).

When venting, the horizontal run must be kept to a minimum of 36“ or a maximum of 20 feet. If a 20 foot
horizontal run is required, the

replace must have a minimum vertical rise immediately off the

replace of 57”.

When terminating vertically, the vertical rise is a minimum 36“ and a maximum 40 feet above the

replace.

For optimum performance, it is recommended that all horizontal runs have a minimum 1/4” rise per foot.
Provide a means for visually checking the vent connection to the fi replace after the fi replace is installed.
Do not allow the inside liner to bunch up on horizontal or vertical runs and elbows. Keep it pulled tight.
A 3/4” air gap between the inner and outer liner all around is required for safe operation. Use a fi restop
when penetrating interior walls, fl oor or ceiling.

8.4