Napoleon Madison GD-80NT, Madison GD-80PT Operation Instructions

1

$10.00

W415-0695 / 05.12.08

W415-0695 / 05.12.08

2

TABLE of CONTENTS

PG2-6 INTRODUCTION

Warnings

Warranty
Fireplace Dimensions
Installation Overview
General Instructions
General Information
Care of Glass & Plated Parts

6-12 VENTING

Venting lengths and Air Terminal Locations

Venting Specifi cations
Minimum Air Terminal Location Clearances

13-21 INSTALLATION

Wall & Ceiling Protection

Horizontal Installation
Vertical Installation
Using Flexible Vent Components
Horizontal Air Terminal Installation
Vertical Air Terminal Installation
Fireplace Vent Connection
Using Rigid Vent Components
Horizontal Air Terminal Installation
Extended Horizontal Air Terminal Installation
Vertical Venting Installation
Mobile Home Installation
Gas Installation
Restricting Vertical Vents
Framing
Minimum Clearance to Combustibles
Minimum Mantel and Enclosure Clearances

22 ELECTRICAL CONNECTION
Hard Wiring Connection

Schematic

23-25 FINISHING

Log Shipping Bracket

Decorative Brick Panel Installation
Log Placement
Glowing Embers
Charcoal Embers

26 REMOTE AND VALVE ACCESS

Door Removal

Night Light™ Replacement
Blower Replacement
Inner Access Panel
Control Door
Remote Receiver Removal
Valve Removal
“Auto Spark” Battery Removal

29-31 OPERATION

General Transmitter Layout

Fireplace Operation
Hand Held Remote Operation
Temperature Display
Room Thermostat
Smart Thermostat
Flame Height
Fan Speed
Child Proof Function
Night Light™
Low battery / Manual Bypass
In the event of a power failure
Control Module

32 OPERATING INSTRUCTIONS

33 MAINTENANCE
33 ADJUSTMENTS

Pilot Burner Adjustment

Venturi Adjustment
Air Control Rod Access

34-35 REPLACEMENTS

Ordering Replacement Parts

Replacement Parts
Flexible Vent Kits
Terminal Kits
Accessories

36-37 TROUBLE SHOOTING GUIDE
38 SERVICE HISTORY
39-40 NOTES

!

WARNING

• Do not burn wood or other materials in this fireplace.

• Adults and especially children should be alerted to the hazards of high surface temperatures and should stay away to avoid
burns or clothing ignition. Supervise young children when they are in the same room as the fireplace.

• Clothing or other flammable material should not be placed on or near the fireplace.

• Due to high temperatures, the fireplace should be located out of traffic and away from furniture and draperies.

• Ensure you have incorporated adequate safety measure to protect infants/toddlers from touching hot surfaces.

• Even after the fireplace is out, the glass and/or screen will remain hot for an extended period of time.

• Check with your local hearth specialty dealer for safety screens and hearth guards to protect children from hot surfaces. These
screens and guards must be fastened to the floor.

• Any safety screen or guard removed for servicing must be replaced prior to operating the fireplace.

• It is imperative that the control compartments, burners and circulating blower and its passageway in the fireplace and venting
system are kept clean. The fireplace and its venting system should be inspected before use and at least annually by a qualified
service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc. The fireplace
area must be kept clear and free from combustible materials, gasoline and other flammable vapours and liquids.

• Under no circumstances should this fireplace be modified.

• This fireplace must not be connected to a chimney flue pipe serving a separate solid fuel burning appliance.

• Do not use this fireplace if any part has been under water. Immediately call a qualified service technician to inspect the fireplace
and to replace any part of the control system and any gas control which has been under water.

• Do not operate the fireplace with the glass door removed, cracked or broken. Replacement of the glass should be done by a
licensed or qualified service person.

• Do not strike or slam shut the fireplace glass door.

• This fireplace 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 fireplace 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 fire.

• Only doors / optional fronts certified with the unit are to be installed on the appliance.

NOTE: CHANGES, OTHER THAN EDITORIAL, ARE DENOTED BY A VERTICAL LINE IN THE MARGIN.

W415-0695 / 05.12.08

NAPOLEON® products are manufactured under the strict Standard of the world recognized

ISO 9001 : 2000 Quality Assurance Certifi cate.
NAPOLEON® products are designed with superior components and materials, assembled by trained craftsmen
who take great pride in their work. The burner and valve assembly are leak and test-fi red at a quality test station.
The complete fi replace is thoroughly inspected by a qualifi ed technician before packaging to ensure that you, the
customer, receives the quality product that you expect from NAPOLEON®.

NAPOLEON® GAS FIREPLACE PRESIDENT’S LIFETIME LIMITED

WARRANTY

The following materials and workmanship in your new NAPOLEON® gas fi replace are warranted against defects for as
long as you own the fi replace. This covers: combustion chamber, heat exchanger, stainless steel burner, PHAZER™ logs
and embers, ceramic glass (thermal breakage only), gold plated parts against tarnishing, porcelainized enamelled components
and aluminum extrusion trims.
Electrical (110V and millivolt) components and wearable parts such as the blower, gas valve, thermal switch, switches,
wiring, remote control, ignitor, gasketing, and pilot assembly are covered and NAPOLEON® will provide replacement
parts free of charge during the fi rst year of the limited warranty. Light bulbs are not covered by this warranty.
Labour related to warranty repair is covered free of charge during the fi rst year. Repair work, however, requires the prior
approval of an authorized company offi cial. Labour costs to the account of NAPOLEON® are based on a predetermined
rate schedule and any repair work must be done through an authorized NAPOLEON® dealer.

3

CONDITIONS AND LIMITATIONS

NAPOLEON® warrants its products against manufacturing defects to the original purchaser only -- i.e., the individual or legal entity (registered customer)
whose name appears on the warranty registration card fi led with NAPOLEON® -- provided that the purchase was made through an authorized NAPOLEON®
dealer and is subject to the following conditions and limitations:

This factory warranty is nontransferable and may not be extended whatsoever by any of our representatives.

The gas fi replace must be installed by a licensed, authorized service technician or contractor. Installation must be done in accordance with the installation
instructions included with the product and all local and national building and fi re codes.

This limited warranty does not cover damages caused by misuse, lack of maintenance, accident, alterations, abuse or neglect and parts installed from other
manufacturers will nullify this warranty.

This limited warranty further does not cover any scratches, dents, corrosion or discoloring caused by excessive heat, abrasive and chemical cleaners nor chip­ping on porcelain enamel parts, mechanical breakage of PHAZER™ logs and embers, nor any venting components used in the installation of the fi replace.

NAPOLEON® warrants its stainless steel burners against defects in workmanship and material for life, subject to the following conditions: During the fi rst
10 years NAPOLEON® will replace or repair the defective parts at our option free of charge. From 10 years to life, NAPOLEON® will provide replacement
burners at 50% of the current retail price.

In the fi rst year only, this warranty extends to the repair or replacement of warranted parts which are defective in material or workmanship provided that the
product has been operated in accordance with the operation instructions and under normal conditions.

After the fi rst year, with respect to this President’s Limited Lifetime Warranty, NAPOLEON® may, at its discretion, fully discharge all obligations with respect
to this warranty by refunding to the original warranted purchaser the wholesale price of any warranted but defective part(s).

After the fi rst year, NAPOLEON® will not be responsible for installation, labour or any other costs or expenses related to the reinstallation of a warranted
part, and such expenses are not covered by this warranty.

Notwithstanding any provisions contained in this President’s Limited Lifetime Warranty, NAPOLEON’S responsibility under this warranty is defi ned as above
and it shall not in any event extend to any incidental, consequential or indirect damages.

This warranty defi nes the obligations and liability of NAPOLEON® with respect to the NAPOLEON® gas fi replace and any other warranties expressed or
implied with respect to this product, its components or accessories are excluded.

NAPOLEON® neither assumes, nor authorizes any third party to assume, on its behalf, any other liabilities with respect to the sale of this product. NA­POLEON® will not be responsible for: over-fi ring, downdrafts, spillage caused by environmental conditions such as rooftops, buildings, nearby trees, hills,
mountains, inadequate vents or ventilation, excessive venting confi gurations, insuffi cient makeup air, or negative air pressures which may or may not be
caused by mechanical systems such as exhaust fans, furnaces, clothes dryers, etc.

Any damages to fi replace, combustion chamber, heat exchanger, brass trim or other component due to water, weather damage, long periods of dampness,
condensation, damaging chemicals or cleaners will not be the responsibility of NAPOLEON®.

The bill of sale or copy will be required together with a serial number and a model number when making any warranty claims from your authorized dealer.
The warranty registration card must be returned within fourteen days to register the warranty.

NAPOLEON® reserves the right to have its representative inspect any product or part thereof prior to honouring any warranty claim.

ALL SPECIFICATIONS AND DESIGNS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE DUE TO ON-GOING PRODUCT IMPROVEMENTS. NAPOLEON® IS A REGISTERED
TRADEMARK OF WOLF STEEL LTD. PATENTS U.S. 5.303.693.801 - CAN. 2.073.411, 2.082.915. © WOLF STEEL LTD.

W415-0695 / 05.12.08

4

FIGURE 2

FIREPLACE DIMENSIONS

FIGURE 1

INSTALLATION OVERVIEW

W415-0695 / 05.12.08

5

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.

• The appliance off valve must be a “T” handle gas cock.

• The fl exible connector must not be longer than 36“.

• 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 to the current CAN/CGA -B149 Installation Code in Canada or to the National Fuel Gas Code, ANSI
Z223.1, and NFPA 54 in the United States. Suitable for mobile home installation if installed in accordance with the current standard CAN/
CSA Z240MH Series, for gas equipped mobile homes, in Canada or ANSI Z223.1 and NFPA 54 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.
The optional heat circulating blower is supplied with a cord. If 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.

Under extreme vent configurations, allow several minutes (5-15) for the flame to stabilize after ignition.

Provide adequate ventilation and combustion air. Provide adequate accessibility clearance for servicing and operating the fireplace.
Never obstruct the front opening of the fireplace.

Objects placed in front of the fireplace must be kept a minimum of 48” from the front face of the unit.

Minimum clearance to combustible construction from fireplace and vent surfaces:
Non combustible framing:

Top 0” to stand-offs.
Combustible framing:
Sides, back, bottom of the unit 0” to stand-offs
Non combustible fi nishing:
Top 18” to top of fi replace opening
Sides 5 3/8” to sides of fi replace opening
Combustible fi nishing:
Bottom 0” to bottom edge of fi replace
Enclosure top 72” from the bottom of fi replace
Recessed depth 29 1/4”
Vent pipe
Ceiling 90” from bottom of unit

** 2” all around

**HORIZONTAL VENT SECTIONS: A minimum clearance of 2" all around the vent pipe on all horizontal runs to combustibles is required

except for clearances in fi replace enclosures. Use fi restop spacer W010-1800 (supplied).

**VERTICAL VENT SECTIONS: A minimum of 1" all around the vent pipe on all vertical runs to combustibles is required except for clear-

ances in fi replace enclosures. Use fi restop spacer W500-0367 (not supplied).

GENERAL INFORMATION

FOR YOUR SATISFACTION, THIS FIREPLACE HAS BEEN TEST-FIRED TO ASSURE ITS OPERATION AND QUALITY! Maximum input
is 43,000 BTU/hr for both natural gas and propane. 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. Maximum output for natural gas is 33,540 BTU/hr at an effi ciency of 78%; and 34,000 BTU/hr for propane
at an effi ciency of 79%. Minimum inlet gas supply pressure is 4.5“ water column for natural gas and 11“ water column for propane. Maxi­mum inlet gas pressure is 7“ water column for natural gas and 13“ water column for propane. Manifold pressure under fl ow conditions is

3.5“ water column for natural gas and 10“ water column for propane.
This fi replace is approved for bathroom, bedroom and bed-sitting room installations and is suitable for mobile home installation.

This fi replace is certifi ed to be installed in an aftermarket permanently
located, manufactured (mobile) home, where not prohibited by local
codes.
This fi replace is only for use with the type of gas indicated on the
rating plate. This fi replace is not convertible for use with other gases,
unless a certifi ed kit is used.

Expansion / contraction noises during heating up and cooling down
cycles are normal and are to be expected. Change in fl ame ap­pearance from “HI” to “LO” is more evident in natural gas than in
propane.

W415-0695 / 05.12.08

6

CARE OF GLASS, AND PLATED PARTS

Do not use abrasive cleaners to clean plated parts. Buff lightly with
a clean dry cloth. The glass is 3/16” ceramic glass available from
your Authorized 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.

VENTING

VENTING LENGTHS AND AIR TERMINAL LOCATIONS

Use only Wolf Steel, Simpson Dura-Vent, Selkirk Direct Temp or American Metal Amerivent venting components.
For Simpson Dura-Vent, Selkirk Direct Temp and American Metal Amerivent, follow the installation procedure provided with the venting

components.

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 maybe 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.

Wolf Steel, Simpson Dura-Vent, Selkirk Direct Temp and American Metal Amerivent venting systems must not be combined.
A starter adaptor must be used and may be purchased from the corresponding supplier:

Supplier 5&8 ZC

Dura-Vent W175-0170
Amerivent 5DSC-N2
Direct Temp 5DT-AA

For Simpson Dura-Vent, Selkirk Direct Temp and American Metal Amerivent, follow the installation procedure found on the website for your
venting supplier.

VENTING SUPPLIER WEBSITE

Simpson Dura-Vent www.duravent.com
Selkirk Direct Temp www.selkirkcorp.com
American Metal Amerivent www.americanmetalproducts.com

When using Wolf Steel Ltd. venting components, use only approved Wolf Steel Ltd. rigid / fl exible vent components with the following ter­mination kits: WALL TERMINAL KIT GD422R, 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. These vent kits allow for either
horizontal or vertical venting of the fi replace.

The maximum allowable vertical vent length is 40 feet. The maximum number of allowable 5” vent connections is three horizontally or
vertically (excluding the fi replace and the air terminal connections).

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.

When venting, the horizontal run must be kept to a minimum of 16“ or a
maximum of 20 feet. If a 20 foot horizontal run is required, the fi replace
must have a minimum vertical rise immediately off the fi replace of 57“.
FIGURES 2a-c. When terminating vertically, the vertical rise is a minimum
3 feet and a maximum 40 feet above the fi replace. FIGURE 3.

FIGURES 3a

W415-0695 / 05.12.08

7

FIGURE 3b

FIGURE 3c

Horizontal runs may have a 0“ rise per foot in all cases using Simpson Dura-Vent, Selkirk Direct Temp, American Metal Amerivent or Wolf
Steel Ltd. rigid or fl exible venting components when venting as illustrated in Figures 2a, 2b, and 2c.

For optimum performance, it is recommended that all horizontal runs have a minimum 1“ 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 1¼” air gap between the inner and
outer liner all around is required for safe operation.
Vent lengths that pass through unheated spaces (attics, garages, crawl space) should be wrapped with a protective insulation sleeve to
minimize condensation.
Use a fi restop when penetrating interior walls, fl oor or ceiling.
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.

If vertical rises greater than 57“ are necessary, the increased rise must be deducted from the horizontal run.

W415-0695 / 05.12.08

8

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
HR - combined horizontal vent lengths in feet
H

- offset factor: .03(total degrees of offset - 90°*) in

O

feet

VT - combined vertical vent lengths in feet

HORIZONTAL TERMINATION

when (HT) < (VT)

Simple venting confi guration (only one 90° elbow)

FIGURE 4

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°

For vent confi gurations requiring more than one 90° elbow,
the following formulas apply:

Formula 1: HT < V
Formula 2: HT + VT < 40 feet

Example 1:

T

H

2

Simple venting confi guration (only one 90° elbow)
See graph to determine the required vertical rise VT for the
required horizontal run HT.

VERTICAL
RISE IN
FEET

V

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET H

The shaded area within the lines represents acceptable
values for H

and V

T

.

T

V

FIGURE 5

2

90°

H

90°

V

1

V1 = 3 ft
V2 = 8 ft
VT =
H1 = 2.5 ft
H
HR = H1 + H2 = 2.5 + 2 = 4.5 ft
HO = .

ft

T

HT = HR + HO = 4.5 + 5.4 = 9.9 ft

H

Formula 1: H

Formula 2: HT + VT < 40 feet

20.9 < 40
Since both formulas are met, this vent confi guration is
acceptable.

V1 +

V2 =

3 + 8 = 11 ft

= 2 ft

2

03 (three 90° elbows - 90°) = .03(270° - 90°) = 5.4

+ VT = 9.9 + 11 = 20.9 ft

T

< V

T

T

9.9 < 11

1

W415-0695 / 05.12.08

HORIZONTAL TERMINATION

when (HT) > (VT)
Simple venting confi guration (only one 90° elbow)

FIGURE 6

See graph to determine the required verti­cal rise VT for the required horizontal run
HT.

Example 3:

V

9

90°

H

H

1

90°

1

H

V

2

2

H

3

FIGURE 8

4

REQUIRED
VERTICAL
RISE IN
INCHES

V

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET H

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

For vent confi gurations requiring more than one 90° elbow

.

T

T

the following formulas apply:

Formula 1: HT < 4.2 V

T

Formula 2: HT + VT < 24.75 feet

Example 2:

V

1

90°

H

1

H

2

V

1

V

2

VT = V1 + V2 = 4 + 1.5 = 5.5 ft

= 4 ft
= 1.5 ft

H1 = 2 ft
H2 = 1 ft
H

= 1 ft

3

H4 = 1.5 ft
HR = H1 + H2 + H3 + H4 = 2 + 1 + 1 + 1. 5 = 5.5 ft
HO = .03 (four 90° elbows - 90°) = .03(360° - 90°) = 8.1

ft

HT = HR + HO = 5.5 + 8.1 = 13.6 ft
HT + VT = 13.6 + 5.5 = 19.1 ft

Formula 1: HT < 4.2 V

4.2 VT = 4.2 x 5.5 = 23.1 ft

13.6 < 23.1

T

Formula 2: HT + VT < 24.75 feet

19.1 < 24.75

Since both formulas are met, this vent confi guration is
acceptable.

V
H1 = 3 ft
H
HR = H1 + H2 = 3 + 5 = 8 ft
H

ft

= VT = 6 ft

1

= 5 ft

2

= .03 (two 90° elbows - 90°) = .03(180° - 90°) = 2.7

O

HT = HR + HO = 8 + 2.7 = 10.7 ft
HT + VT =

Formula 1: HT < 4.2 V

4.2 V

10.7 + 6 =16.7

10.7 < 25.2

T

= 4.2 x 6 = 25.2 ft

T

Formula 2: HT + VT < 24.75 feet

16.7 < 24.75

Since both formulas are met, this vent confi guration is ac­ceptable.

FIGURE 7

W415-0695 / 05.12.08

10

when (HT) < (VT)

VERTICAL TERMINATION

Example 4:

FIGURE 9

Simple venting confi gurations

See graph to determine the required vertical rise VT for the
required horizontal run H

REQUIRED
VERTICAL RISE
IN FEET

V

T

.

T

FIGURE 10

90°

H

90°

V

1

H

1

V

2

2

90°

90°

V

1

V

2

V

T

H1 = 3 ft
H2 = 2.5 ft
HR = H1 + H2 = 3 + 2.5 = 5.5 ft
HO = .03 (four 90° elbows - 90°)

= .03(90 + 90 + 90 + 90 - 90) = 8.1 ft

HT = HR + HO = 5.5 + 8.1 = 13.6 ft
HT + VT = 13.6 + 15 = 28.6 ft

Formula 1: H

Formula 2: HT + VT < 40 feet

28.6 < 40
Since both formulas are met, this vent confi guration is
acceptable.

= 5 ft
= 10 ft

=

V1 +

V2 =

5 + 10 = 15 ft

< V

T

13.6 < 15

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET

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

.

T

For vent confi gurations requiring more than zero 90° elbow
(top exit) or one 90° elbow (rear exit), the following formulas
apply:

Formula 1: HT < V

T

Formula 2: HT + VT < 40 feet

W415-0695 / 05.12.08

H

T

VERTICAL TERMINATION

11

when (HT) > (VT)
Simple venting confi gurations

FIGURE 11

See graph to determine the required vertical rise VT for the
required horizontal run H

MAXIMUM
VERTICAL
RISE IN
FEET

V

T

HORIZONTAL VENT RUN PLUS OFFSET IN FEET

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

.

T

.

T

For vent confi gurations requiring more than two 90° elbow
(top exit) or one 90° elbow (rear exit), the following formulas
apply:

Formula 1: HT < 3V

T

Formula 2: HT + VT < 40 feet

Example 5:

90°

90°

H

V

1

1

V

H

2

2

90°

FIGURE 12

V

1

V

2

V

3

V

T

H1 = 6 ft

H

T

H2 = 2 ft
HR = H1 + H2 = 6 + 2 = 8 ft
HO = .03 (four 90° elbows - 90°)

= .03(90 + 90 + 90 + 90 - 90) = 8.1 ft

HT = HR + HO = 8 + 8.1 = 16.1 ft
HT + VT = 16.1 + 4.5 = 20.6 ft

= 2 ft
= 1 ft
= 1.5 ft

=

V1 +

V2 +

V3 =

2 + 1 + 1.5 = 4.5 ft

V

3

90°

Formula 1: H

Since this formula is not met, this vent confi guration is

< 3V

T

T

3VT =

16.1 > 13.5

3 x

4.5 = 13.5 ft

unacceptable.
Formula 2: HT + VT < 40 feet

20.6 < 40
Since only formula 2 is met, this vent confi guration
is unacceptable and a new fi replace location or vent
confi guration will need to be established to satisfy both
formulas.

W415-0695 / 05.12.08

12

MINIMUM AIR TERMINAL LOCATION CLEARANCES

FIGURE 13

W415-0695 / 05.12.08

GD-301