Napoleon Fireplaces BGD40-N, BGD40-P Horizontal Termination, Definitions Elbow Vent Length Values

Page 10

10

 

 

DEFINITIONS

 

ELBOW VENT LENGTH VALUES

for the following symbols used in the venting calcula-

 

 

feet

inches

tions and examples are:

 

 

0.03

0.5

>

-

greater than

15°

0.45

6.0

>

-

equal to or greater than

30°

0.9

11.0

<

-

less than

45°*

1.35

16.0

<

-

equal to or less than

90°*

2.7

32.0

HT

-

total of both horizontal vent lengths (HR) and off-

 

 

 

 

sets (HO) in feet

 

* the first 45º and 90° offset has a zero value and is

H -

combined horizontal vent lengths in feet

 

HRO -

offset factor: .03(total degrees of offset - 135°*) in

 

shown in the formula as -45°and -90ºrespectively or

VT -

feet

 

-135ºwhen combined.

 

 

combined vertical vent lengths in feet

 

 

 

 

 

 

 

 

 

 

 

HORIZONTAL TERMINATION

when (HT) < (VT)

Simple venting configuration (only one 45º and 90° elbow)

90°

FIGURE5

For vent configurations requiring more than one 45º and 90° elbow, the following formulas apply:

Formula 1: HT < VT

Formula 2: HT + VT < 40 feet

Example 1:

H2

 

90°

 

 

 

V1

45º

 

 

FIGURE6

 

 

45º

H1 90°

HT - total of both horizontal vent lengths (HR) and offsets (HO) in feet

REQUIRED

VERTICAL RISEINFEET (VT)

CALCULATED HORIZONTAL VENT RUN PLUS OFFSETS IN FEET (HT)

The shaded area within the lines represents acceptable values for HT and VT .

V1

=

8 ft

 

VT

= V1 = 8 ft

H1

=

2.5 ft

 

H2

=

2 ft

 

HR

= H1 + H2 = 2.5 + 2 = 4.5 ft

HO

= .03(one 45º elbow + two 90º elbows - 135º)

=0.3(225-135º) = 2.7ft

HT

= HR + HO = 4.5 + 2.7 = 7.2 ft

HT + VT = 7.2 +8 =15.2ft

Formula 1:

HT < VT

 

 

 

7.2 < 8

Formula 2:

HT + VT < 40 feet

 

 

 

15.2 < 40

Since both formulas are met, this vent configuration is ac- ceptable.

W415-0299/C/03.12.03

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Contents GAS Fired Direct Vent Millivolt System Table of Contents Napoleon GAS Fireplace Presidents Lifetime Limited Warranty General Information IntroductionGeneral Instructions Care of GLASS, and Plated PartsDimensions Venting Venting LengthsAIR Terminal Installations Venting Application Flowchart Horizontal Termination VerticalSpecial Vent Installations Typical Vent InstallationsPeriscope Termination Horizontal Termination Definitions Elbow Vent Length ValuesFormula 1 HT 4.2 VT Formula 2 HT + VT 24.75 feet Example Vertical Termination 90 H2 45 H1Formula 1 HT 3VT Formula 2 HT + VT 40 feet Example Venting Peninsula Installation ProcedureCountertop / BAR Installation FramingFacing Brick Panel InstallationFinishing OPEN-END Installation Procedure = 25¼ minus finishing material thickness each sideSEE-THROUGH Installation Procedure Venting FacingVent Framing Dimensions Horizontal Vent Off Fireplace Vertical Vent Off FireplaceHorizontal Installation Installation Wall and Ceiling ProtectionVertical Installation Using Flexible Vent Components Horizontal AIR Terminal InstallationUsing Rigid Vent Components Fireplace Vent ConnectionMantle Installation GAS InstallationFinishing LOG Placement Locating PinsGvfl Installation Glowing Embers Door InstallationLogo Placement Charcoal EmbersL36 Louvre Installation END Door Installation Steel LIP DoorOptional Blower Installation Do not overtighten thermodisc or distort housingOperation / Maintenance MaintenanceVenturi Adjustment AdjustmentsPilot Burner Adjustment Restricting Vertical VentsReplacements Components Common to ALL UnitsW415-0299 /C Accessories Trouble Shooting Guide Symptom Problem Test SolutionProblem Test Solution Refer to Main Burner Goes OUT Pilot Stays onWolf Steel Fireplace Service History W415-0299/C/03.12.03 W415-0299/C/03.12.03
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BGD40-P, BGD40-N specifications

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