Napoleon BGD42CFP, BGD36CFPTR, BGD42CFN Installation And Operating Instructions Manual
INSTALLER: THESE INSTRUCTIONS MUST BE CONVEYED TO AND REMAIN WITH THE HOMEOWNER.
1
OPERATING INSTRUCTIONS
CERTIFIED UNDER CANADIAN AND AMERICAN NATIONAL STANDARDS: CSA 2.33, ANSI Z21.88 FOR VENTED GAS FIREPLACE HEATERS.
BGD36CFNTR & BGD42CFN
NATURAL GAS
BGD36CFPTR & BGD42CFP
PROPANE
CERTIFIED FOR CANADA AND UNITED STATES USING ANSI/CSA METHODS.
INSTALLATION
AND
SAFTEY INFORMATION
WARNING: If the information in these instruc-
tions are not followed exactly, a fire or explosion my result causing property damage,
personal injury or loss of life.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or
any other appliance.
- WHAT TO DO IF YOU SMELL GAS:
- Do not try to light any appliance
- Do not touch any electrical switch; do
not use any phone in your building.
- Immediately call your gas supplier from
a neighbour’s phone. Follow the gas
supplier’s instructions.
- If you cannot reach your gas supplier,
call the fire department.
- Installation and service must be performed by
a qualified installer, service agency or the supplier.
BGD36CF Illustrated
Wolf Steel Ltd., 24 Napoleon Rd., Barrie, ON, L4M 4Y8 Canada / 103 Miller Drive, Crittenden, Kentucky, USA, 41030
(705)721-1212 • fax(705)722-6031 • www.napoleonfireplaces.com • ask@napoleon.on.ca
$10.00
W415-0566 / E / 09.28.07
W415-0566 / E / 09.28.07
2
TABLE OF CONTENTS
PG 4-5 INTRODUCTION
Warranty
General Instructions
General Information
Care of Glass & Plated Parts
Unit Dimensions
5-21 VENTING
Venting Lengths
Minimum Air Terminal Location Clearances
Typical Minimum and Maximum Vent Lengths
Special Vent Installations
Venting Application Flow Chart
Venting Specifi cations
BGD36CF Pre-Installation Preparation
22-31 INSTALLATION
Wall and Ceiling Protection
Horizontal Installation
Adjustable Firestop Installation
Vertical Installation
Using Flexible Vent Components
Using Rigid Vent Components
Restricting Vertical Vents (BGD42CF ONLY)
Gas Installation
Mobile Home Installation
Installing Standoffs
Framing
Minimum Mantle and Enclosure Clearances
Clean Face Surround Kit Installation
32 COMMON FINISHING
Glowng Embers
Charcoal Embers
Vermiculite
Logo Placement
32-33 BGD36CF FINISHING
Log Placement
Door Operation
33-34 BGD42CF FINISHING
Log Placement
Grate Installation
Door Installation / Removal
34-35
OPTIONAL BLOWER INSTALLATION
BGD36CF Accessing the Blower
BGD42CF Accessing the Blower
Installing the Blower
36 OPTIONAL FAN INSTALLATION
GD36
THERMOSTATIC SENSOR
CONTROL
37-38 OPERATION / MAINTENANCE
Operating Instructions
Maintenance
38 ADJUSTMENTS
Pilot Burner Adjustment
Venturi Adjustment
39-41 COMMON REPLACEMENTS
BGD36CF REPLACEMENTS
BGD42CF REPLACEMENTS
42-43 TROUBLE SHOOTING GUIDE
44 SERVICE HISTORY
PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE
WARNING
• Do not burn wood or other materials in this fi replace.
• The product is a vented gas fi replace
• Adults and especially children should be alerted to the hazards of high surface temperatures and should stay away to avoid burns or
clothing ignition. Keep young children and animals away when the fi replace is hot.
• Due to high temperatures, the fi replace should be located out of traffi c and away from furniture and draperies.
• Clothing or other fl ammable material should not be placed on or near the fi replace.
• Any safety screen or guard removed for servicing must be replaced prior to operating the fi replace.
• It is imperative that the control compartments, burners and circulating blower and its passageway in the fi replace and venting system
are kept clean. The fi replace and its venting system should be inspected before use and at least annually by a qualifi ed service person.
More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc. The fi replace area must be kept
clear and free from combustible materials, gasoline and other fl ammable vapours and liquids.
• Under no circumstances should this fi replace be modifi ed.
• This fi replace must not be connected to a chimney fl ue pipe serving a separate solid fuel burning appliance.
• Do not use this fi replace if any part has been under water. Immediately call a qualifi ed service technician to inspect the fi replace and
to replace any part of the control system and any gas control which has been under water.
• Do not operate the fi replace with the glass door removed, cracked or broken. Replacement of the glass should be done by a licensed
or qualifi ed service person.
• Do not strike or slam shut the fi replace glass door.
• This fi replace uses and requires a fast acting thermocouple. Replace only with a fast acting thermocouple supplied by Wolf Steel
Ltd.
• Pressure relief doors must be kept closed while the fi replace is operating to prevent exhaust fumes containing
carbon monoxide, from entering into the home. Temperatures of the exhaust escaping through these openings can
also cause the surrounding combustible materials to overheat and catch fi re.
W415-0566 / E / 09.28.07
NOTE: CHANGES, OTHER THAN EDITORIAL, ARE DENOTED BY A VERTICAL LINE IN THE MARGIN.
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4
GENERAL INSTRUCTIONS
THIS GAS FIREPLACE SHOULD BE INSTALLED AND SERVICED BY A QUALIFIED INSTALLER to conform with local
codes. Installation practices vary from region to region and it
is important to know the specifi cs that apply to your area,
for example: in Massachusetts State:
• The fi replace damper must be removed or welded in the
open position prior to installation of a fi replace
insert or gas log.
• A carbon monoxide detector is required in all rooms containing gas fi red appliances
• The appliance off valve must be a “T” handle gas cock.
• The fl exible connector must not be longer than 36 inches.
• The appliance is not approved for installation in a bedroom or bathroom unless the unit is a direct vent
sealed combustion product.
• WARNING: This product must be installed by a licensed
plumber or gas fi tter when installed within the
commonwealth of Massachusetts.
In absence of local codes, install the BGD36CF and BGD42CF
to the current National Fuel Gas Code, ANSI Z223.1, or the
current CAN/CGA B149, Installation Codes. Mobile home
installation must conform with local codes or in the absence
of local codes, install to the current standard for gas equipped
mobile housing CAN/CSA ZA240 MH Series in Canada or the
Manufactured Home Construction and Safety Standard, Title
24 CFR, Part 3280, or the Fire Safety Criteria for Manufactured Home Installations, Sites and Communities Standard
ANSI/NFPA 501A in the United States.
The fi replace and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure
testing of that system at test pressures in excess of 1/2 psig
(3.5 kPa). The fi replace must be isolated from the gas supply
piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping system at
test pressures equal to or less than 1/2 psig (3.5 kPa).
When the fi replace is installed directly on carpeting, vinyl tile
or other combustible material other than wood fl ooring, the
fi replace shall be installed on a metal or wood panel extending
the full width and depth.
If the optional fan or blower is installed, the junction box must
be electrically connected and grounded in accordance with
local codes. In the absence of local codes, use the current
CSA C22.1 CANADIAN ELECTRICAL CODE in Canada or
the ANSI/NFPA 70 NATIONAL ELECTRICAL CODE in the
United States.
GENERAL INFORMATION
FOR YOUR SATISFACTION, THIS FIREPLACE HAS BEEN
TEST-FIRED TO ASSURE ITS OPERATION AND QUALITY!
BGD36CF
Maximum input for the BGD36CF is 17,000 BTU/h for natural gas and propane. Maximum output for natural gas and
propane is 10,900 BTU/hr at an effi ciency of 64% with the
fan on. The A.F.U.E. (annual fuel utilization effi ciency) rating
is 53% for natural gas and propane.
BGD42CF
Maximum input for the BGD42CF is 24,000 BTU/hr for natural gas and propane. Maximum output for natural gas and
propane is 16,000 BTU/hr at an effi ciency of 67% with the
fan on. The A.F.U.E. (annual fuel utilization effi ciency) rating
is 61.5% for natural gas and propane.
W415-0566 / E / 09.28.07
When the fi replace is installed at elevations above 4,500ft,
and in the absence of specifi c recommendations from the
local authority having jurisdiction, the certifi ed high altitude
input rating shall be reduced at the rate of 4% for each additional 1,000ft.
Minimum inlet gas supply pressure is 4.5 inches water column
for natural gas and 11 inches water column for propane.
Maximum inlet gas pressure is 7 inches water column for
natural gas and 13 inches water column for propane. Manifold
pressure under fl ow conditions is 3.5 inches water column for
natural gas and 10 inches water column for propane.
This fi replace is approved for bathroom, bedroom and bedsitting room installations and is suitable for mobile home
installation.
No external electricity (110 volts or 24 volts) is required
for the gas system operation.
Expansion / contraction noises during heating up and
cooling down cycles are normal and are to be expected.
Use only accessories designed for and listed with your
specifi c fi replace.
Provide adequate ventilation air. Provide adequate accessibility clearance for servicing and operating the fi replace.
Never obstruct the front opening of the fi replace.
Objects placed in front of the fi replace must be kept a
minimum of 48" away from the front face of the unit.
CARE OF GLASS, AND PLATED PARTS
Do not use abrasive cleaners to clean plated parts. Buff lightly
with a clean dry cloth. The BGD36CF and BGD42CF are
factory equipped with tempered glass. The glass thickness is
3/16" for both models. Use only replacement glass available
from your Napoleon dealer. DO NOT SUBSTITUTE MATERIALS. Clean the glass after the fi rst 10 hours of operation
with a recommended gas fi replace glass cleaner. Thereafter
clean as required. DO NOT CLEAN GLASS WHEN HOT! If
the glass is not kept clean permanent discolouration and / or
blemishes may result.
FIGURE 1
UNIT DIMENSIONS
BGD36CF BGD42CF
FIGURE 2
FIGURE 4
5
FIGURE 5
381/2"
34"
4" DIA.
7" DIA.
FIGURE 3
27"
1
/2"
5
3"
ELECTRICAL INLET
LEFT SIDE
15"
24
1
/4"
17"
33"
GAS
INLET
411/2"
37"
5" DIA.
8" DIA.
FIGURE 6
201/2"
51/2"
3"
ELECTRICAL INLET
LEFT SIDE
23"
25"
10"
40"
46"
VENTING
THE BGD36CF USES: 4" EXHAUST / 7" AIR INTAKE VENT PIPE
THE BGD42CF USES: 5" EXHAUST / 8" AIR INTAKE VENT PIPE
MODEL BGD36CF MAY BE VENTED EITHER AS A TOP VENT OR A REAR VENT.
REFER TO THE SECTION APPLICABLE TO YOUR INSTALLATION.
For safe and proper operation of the fi replace follow the venting instruction exactly.
Deviation from the minimum vertical vent length can create diffi culty in burner start-up and/or carboning.
Provide a means for visually checking the vent connection to the fi replace after the fi replace is installed.
Vent lengths that pass through unheated spaces (attics, garages, crawl spaces) should be insulated with the insulation wrapped in a protective sleeve to minimize condensation.
VENTING LENGTHS
Use only Wolf Steel, Simpson Dura-Vent, Selkirk Direct Temp
or American Metal Amerivent venting components. Minimum
and maximum vent lengths, for both horizontal and vertical
installations, and air terminal locations for either system are
set out in this manual and must be adhered to. For Simpson
Dura-Vent, Selkirk Direct Temp and American Metal Amerivent, follow the installation procedure provided with the venting
components.
All outer pipe joints of these venting systems must be sealed
using Red RTV High Temperature Sealant.
BGD36CF
When using Wolf Steel venting components, use only
approved Wolf Steel rigid / fl exible components with the
following termination kits: WALL TERMINAL KIT GD222,
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 fl exible venting, in
conjunction with the various terminations, use either the
5 FOOT VENT KIT GD220 or the 10 FOOT VENT KIT
GD330.
35 1/2"
GAS
INLET
A starter adaptor must be used with the following vent systems
and may be purchased from the corresponding supplier:
PART 4"/7" 5"/8" SUPPLIER
Duravent W175-0053 W175-0170 Wolf Steel
Amerivent 4DSC-N2 5DSC-N American Metal
Direct Temp 4DT-AAN 5DT-AA Selkirk
For vent systems that provide seals on the inner exhaust fl 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 fi replace fl ue collar which must be
sealed using the black high temperature sealant Mill Pac.
BGD42CF
When using Wolf Steel venting components, use only approved Wolf Steel fl exible components with the following
termination kits: WALL TERMINAL KIT GD422, 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 fl exible venting, in conjunction with
the various terminations, use either the 5 FOOT VENT KIT
GD420 or the 10 FOOT VENT KIT GD430.
Wolf Steel, Simpson Dura-Vent, Selkirk Direct Temp
or American Metal Amerivent venting systems must
not be combined. Wolf Steel rigid and fl exible venting
systems must not be combined.
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6
These vent kits allow for either horizontal or vertical venting
of the fi replace. The maximum allowable horizontal run is 20
feet. The maximum allowable vertical vent length is 40 feet.
The maximum number of vent connections is two horizontally
or three vertically (excluding the fi replace and the air terminal
connections) when using aluminum fl exible venting.
For optimum fl ame appearance and fi replace performance, keep the vent length and number of elbows to a
minimum.
REQUIRED RISE ON
HORIZONTAL VENTING
RIGID
VENTING
BGD36CF
0" / FT
BGD42CF
0" / FT
REAR VENT
TOP
VENT
FLEXIBLE
VENTING
RIGID
VENTING
FLEXIBLE
VENTING
RIGID
VENTING
0" / FT
0" / FT
0" / FT
0"
0" / FT
0" / FT
0" / FT
0"
CORNER
FLEXIBLE
VENTING
6"
0"
BGD42CF
MINIMUM CLEARANCE TO COMBUSTIBLE CONSTRUCTION FROM FIREPLACE AND VENT SURFACES:
Non-combustible framing:
Top Use a steel header on the stand-off
Combustible framing:
Sides, back and bottom of the unit 0 inches to stand-offs
Non-combustible fi nishing:
Top 6 1/2 inches to fi replace edge
Combustible fi replace fi nishing:
Sides and bottom 0 inches to fi replace edge
Enslosure top 13 1/2 inches to top of fi replace
Recessed depth 25 inches
Top****, sides and bottom of vent pipe 1 inch
Top of vent pipe 2 inches
Vent heat shield 1 inch
**** HORIZONTAL TERMINATION - A clearance to com-
bustibles of 1" at the bottom and sides of the vent and 2" at
the top must be maintained when penetrating combustible
walls. The fi restop spacer (W010-1778) supplied with the
unit must be used to maintain this clearance.
VERTICAL TERMINATION - Only a clearance to combustibles
of 1" all around the vent pipe is required when penetrating
combustible fl oors or ceilings.
BGD36CF
MINIMUM CLEARANCE TO COMBUSTIBLE CONSTRUCTION FROM FIREPLACE AND VENT SURFACES:
Combustible framing:
Sides, back, bottom and top* of the unit 0 inches to stand-offs
Combustible Fireplace Finishing:
Sides, bottom and top** 0 inches to fi replace edge
Enclosure top 8 1/4 inches
Recessed depth 14 inches
Top***, sides and bottom of the vent pipe 1 inch
Top of vent pipe 2 inches
* Use a steel header if the optional clean face surround is to be
installed.
** A minimum of 6 1/2 inches of cement board or non-combustible
equivalent must be installed above the top of the fi replace if the
optional clean face surround is to be installed.
*** HORIZONTAL TERMINATION - A clearance to combus-
tibles of 1" at the bottom and sides of the vent and 2" at
the top must be maintained when penetrating combustible
walls. The fi restop spacer (W010-1774) supplied with the
unit must be used to maintain this clearance.
VERTICAL TERMINATION - Only a clearance to combusti-
bles of 1" all around the vent pipe is required when penetrating
combustible fl oors or ceilings.
W415-0566 / E / 09.28.07
FIGURE 7
7
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8
TYPICAL MINIMUM AND MAXIMUM VENT LENGTHS
BGD36CF
REAR EXIT
FIGURE 8
TOP EXIT
FIGURE 9
* See Venting Section
For optimum performance, it is recommended that all horizontal runs have a 1 inch rise per foot.
When terminating vertically, the vertical rise is a minimum
36 inches and a maximum 40 feet from the centre of the
fi replace fl ue outlet.
FIGURE 10
FIGURE 11
BGD42CF
NOTE: When terminating vertically, the restrictor plate W500-0205 must be installed.
Refer to Restricting Vertical Vents.
FIGURE 12
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FIGURE 13
BGD36CF
9
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION CORNER TERMINATION
For optimum performance, it is recommended that all horizontal runs have a 1 inch rise per foot.
When terminating vertically, the vertical rise is a minimum 36 inches
and a maximum 40 feet from the centre of the fi replace fl ue outlet.
Use the GD201 periscope kit to locate the air termination
above grade. The periscope must be installed so that when
fi nal grading is completed, the bottom air slot is located a minimum of 12 inches above grade. The maximum allowable vent
length depends on the model of fi replace, as illustrated.
FIGURE 15
FIGURE 16
The maximum vent length for a corner installation is 20 inches
of horizontal run, in addition to the 45° offset. In this case zero
rise is acceptable when using rigid. See FIGURE 18. Flexible
venting must maintain a 6" rise. See FIGURE 19.
FIGURE 18
FIGURE 19
TOP EXIT INSTALLATION
BGD42CF
REAR EXIT INSTALLATION
PERISCOPE TERMINATION
Use the GD401 periscope kit to locate the air termination
above grade. The periscope must be installed so that when
fi nal grading is completed, the bottom air slot is located a
minimum of 12 inches above grade.
FIGURE 17
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10
VENTING APPLICATION FLOW CHART
BGD36CF
Horizontal
Termination
Vertical
rise is
equal to
or greater
than the
horizontal
run
Horizontal run +
vertical
rise to
maximum
of 40 feet
REAR EXIT
Vertical
rise is
less than
horizontal
run
Horizontal
run + vertical rise to
maximum
of 24.75
feet
Vertical
Termination
Vertical
rise is
equal to
or greater
than the
horizontal
run
Horizontal run +
vertical
rise to
maximum
of 40 feet
FIREPLACE VENT EXIT
Horizontal
Termination
Vertical
rise is
less than
horizontal
run
Horizon-
tal run +
vertical
rise to
maximum
of 40 feet
3 times
Vertical
rise is
equal to
or greater
than the
horizontal
run
Horizontal run +
vertical
rise to
maximum
of 40 feet
TOP EXIT
Vertical
rise is
less than
horizontal
run
Horizontal
run + vertical rise to
maximum
of 24.75
feet
Vertical
Termination
Vertical
rise is
equal to
or greater
than the
horizontal
run
Horizontal run +
vertical
rise to
maximum
of 40 feet
Vertical
rise is
less than
horizontal
run
Horizontal run +
vertical
rise to
maximum
of 40 feet
BGD42CF
HORIZONTAL TERMINATION
W415-0566 / E / 09.28.07
3.5 times
the verti-
cal rise
equal to
or greater
than the
horizontal
run
Vertical rise is
equal to or greater
than the horizontal
run
Horizontal run
+ vertical rise to
maximum of 40
feet
The
vertical rise
equal to or
greater than
the horizontal
run
Vertical rise is less
than horizontal run
Horizontal run +
vertical rise to maximum of 24.75 feet
4.2 times the vertical rise equal to or
greater than the
horizontal run
4.2 times
the verti-
cal rise
equal to
or greater
than the
horizontal
run
VERTICAL TERMINATION
Vertical rise is equal
to or greater than
the horizontal run
Horizontal run
+ vertical rise to
maximum of 40
feet
Vertical rise is
less than hori-
zontal run
Horizontal run
+ vertical rise to
maximum of 40
feet
3 times The
vertical rise equal
to or greater than
the horizontal run
3 times The
vertical rise
equal to or
greater than
the horizontal
run
11
DEFINITIONS
for the following symbols used in the venting calculations
and examples are:
> - greater than
> - equal to or greater than
< - less than
< - equal to or less than
- total of both horizontal vent lengths (HR) and offsets
H
T
(HO) in feet
- combined horizontal vent lengths in feet
H
R
- offset factor: .03(total degrees of offset - 90°*) in
H
O
feet
- combined vertical vent lengths in feet
V
T
ELBOW VENT LENGTH VALUES
feet inches
1° 0.03 0.5
15° 0.45 6.0
30° 0.9 11.0
45° 1.35 16.0
90°* 2.7 32.0
* the fi rst 90° offset has a zero value and is shown in the
formula as -90°
BGD36CF TOP EXIT / HORIZONTAL TERMINATION
when (HT) < (VT)
Simple venting confi guration (only one 90° elbow)
See graph to determine the required vertical rise V
required horizontal run HT.
FIGURE 20
for the
T
Formula 1: HT < V
T
Formula 2: HT + VT < 40 feet
Example 1:
V1 = 3 ft
= 8 ft
V
2
90°
H
2
For vent confi gurations requiring more than one 90° elbow,
the following formulas apply:
VERTICAL
RISE IN
FEET
V
T
HORIZONTAL VENT RUN PLUS OFFSET IN FEET H
The shaded area within the lines represents acceptable
values for HT and V
.
T
V
2
90°
H
1
90°
V
1
VT =
V1 +
V2 =
3 + 8 = 11 ft
H1 = 2.5 ft
= 2 ft
H
2
= H1 + H2 = 2.5 + 2 = 4.5 ft
H
R
= .
H
O
ft
03(three 90° elbows - 90°) = .03(270° - 90°) = 5.4
HT = HR + HO = 4.5 + 5.4 = 9.9 ft
T
+ VT = 9.9 + 11 = 20.9 ft
H
T
Formula 1: H
Formula 2: H
< V
T
T
9.9 < 11
+ VT < 40 feet
T
20.9 < 40
Since both formulas are met, this vent confi guration is
acceptable.
FIGURE 21
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12
BGD36CF TOP EXIT / HORIZONTAL TERMINATION
when (HT) > (VT)
Simple venting confi guration (only one 90° elbow)
FIGURE 22
See graph to determine the
required vertical rise VT for the
required horizontal run HT.
REQUIRED
VERTICAL
RISE IN
INCHES
V
T
HORIZONTAL VENT RUN PLUS OFFSET IN FEET H
T
The shaded area within the lines represents acceptable
values for HT and V
.
T
For vent confi gurations requiring more than one 90° elbow the
following formulas apply:
Formula 1: HT < 4.2 V
T
Formula 2: HT + VT < 24.75 feet
H
1
Example 2:
H
2
Example 3:
H
V
V
1
V
2
VT = V1 + V2 = 4 + 1.5 = 5.5 ft
H1 = 2 ft
H
2
H
3
H
4
HR = H1 + H2 + H3 + H4 = 2 + 1 + 1 + 1. 5 = 5.5 ft
H
O
HT = HR + HO = 5.5 + 8.1 = 13.6 ft
H
T
Formula 1: HT < 4.2 V
4.2 V
= 4 ft
= 1.5 ft
= 1 ft
= 1 ft
= 1.5 ft
= .03(four 90° elbows - 90°) = .03(360° - 90°) = 8.1 ft
+ VT = 13.6 + 5.5 = 19.1 ft
90°
1
13.6 < 23.1
90°
1
H
2
T
= 4.2 x 5.5 = 23.1 ft
T
V
2
H
3
FIGURE 24
H
4
Formula 2: HT + VT < 24.75 feet
19.1 < 24.75
Since both formulas are met, this vent confi guration is
acceptable.
V
1
90°
V
H1 = 3 ft
H2 = 5 ft
HR = H1 + H2 = 3 + 5 = 8 ft
HO = .03(two 90° elbows - 90°) = .03(180° - 90°) = 2.7 ft
HT = HR + HO = 8 + 2.7 = 10.7 ft
HT + VT =
Formula 1: HT < 4.2 V
4.2 V
Formula 2: HT + VT < 24.75 feet
16.7 < 24.75
Since both formulas are met, this vent confi guration is acceptable.
W415-0566 / E / 09.28.07
= VT = 6 ft
1
10.7 + 6 =16.7
T
T
10.7 < 25.2
= 4.2 x 6 = 25.2 ft
FIGURE 23
BGD36CF REAR EXIT / HORIZONTAL TERMINATION
13
when (HT) < (VT)
Simple venting confi guration (only two 90° elbows)
See graph to determine the required vertical rise V
T
FIGURE 25
required horizontal run H
T
For vent confi gurations requiring more than two 90° elbows
REQUIRED
VERTICAL
RISE IN
FEET
V
T
HORIZONTAL VENT RUN PLUS OFFSETS IN FEET H
The shaded area within the lines represents acceptable
values for HT and V
.
T
the following formulas apply:
Formula 1: HT < V
T
Formula 2: HT + VT < 40 feet
for the
T
Example 4:
90°
H
3
V
2
H
90°
2
90°
V
H
1
1
FIGURE 26
90°
V
1
V
2
V
T
H1 = 3 ft
H
2
H
3
HR = H1 + H2 + H3 = 3 + 2 + 1.5 = 6.5 ft
H
O
= .03(90 + 90 + 90 + 90 - 90) = 8.1 ft
HT = HR + HO = 6.5 + 8.1 = 14.6 ft
H
T
Formula 1: H
Formula 2: H
29.6 < 40
Since both formulas are met, this vent confi guration is
acceptable.
= 9 ft
= 6 ft
=
V1 +
V2 =
9 + 6 = 15 ft
= 2 ft
= 1.5 ft
= .03(four 90° elbows - 90°)
+ VT = 14.6 + 15 = 29.6 ft
< V
T
T
14.6 < 15
+ VT < 40 feet
T
W415-0566 / E / 09.28.07
14
BGD36CF REAR EXIT / HORIZONTAL TERMINATION
when (HT) > (VT)
Simple venting confi guration (only two 90° elbows)
FIGURE 27
Example 5:
H
90°
H
4
V
2
90°
3
H
2
V
90°
45°
H
1
FIGURE 28
1
90°
See graph to determine the required vertical rise VT for the
required horizontal run H
T
REQUIRED
VERTICAL
RISE IN
INCHES
V
T
HORIZONTAL VENT RUN PLUS OFFSETS IN FEET
H
T
The shaded area within the lines represents acceptable
values for HT and V
.
T
For vent confi gurations requiring more than two 90° elbows
the following formulas apply:
Formula 1: HT < 3.5V
T
Formula 2: HT + VT < 24.75 feet
V
1
V
2
V
T
= 4 ft
= 1.5 ft
=
V1 +
V2 =
4 + 1.5 = 5.5 ft
H1 = 2 ft
= 1 ft
H
2
= 1 ft
H
3
= 1.5 ft
H
4
HR = H1 + H2 + H3 + H4 = 2 + 1 + 1 + 1.5 = 5.5 ft
= .03(four 90° elbows + one 45° elbow - 90°)
H
O
= .03(90 + 90 + 90 + 90 + 45 - 90) = 9.45 ft
HT = HR + HO = 5.5 + 9.45 = 14.95 ft
+ VT = 14.95 + 5.5 = 20.45 ft
H
T
Formula 1: H
3.5VT =
Formula 2: H
< 3.5V
T
T
3.5 x
14.95 < 19.25
+ VT < 24.75 feet
T
5.5 = 19.25 ft
20.45 < 24.75
Since both formulas are met, this vent confi guration is
acceptable.
W415-0566 / E / 09.28.07
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