Astria Fireplaces Altair Mode d'emploi

Astria Fireplaces
Marque
Astria Fireplaces
Modèle
Altair
Catégorie
Cheminées
Taper
Mode d'emploi
- 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.
• Leave the building immediately.
• Immediately call your gas supplier from a neigh-
bor’s phone. Follow the gas supplier’s instruc-
tions.
• 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 gas
supplier.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could
result in serious injury, death, or property damage.
AVERTISSEMENT:
RISQUED’INDENDIE OU D’EXPLOSION
Le non-respect Des avertissements de sécurité
pourrait d’entraîner des blessures graves, la mort
ou des dommages matériels.
- Ne pas entreposer ni utilizer d’essence ni d’autres
vapeurs ou liquides inflammables dans le voisinage
de cet appareil ou de tout autre appareil.
- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucan interrupteur. Ne pas vous servir
des téléphones se trouvant dans le bâtiment où
vous trouvez.
• Sortez immédiatement de bâtiment.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service des incindies.
- L’installation et l’entretien doivent être assurés par
un installateur ou un service d’entretien qualifié
ou par le fournisseur de gaz.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Installateur : Laissez cette notice avec l’appareil.
Consommateur : Conservez cette notice pour consulta-
tion ultérieure.
This appliance may be installed in an aftermarket permanently located, manufactured home (USA only) or
mobile home, where not prohibited by local codes. This appliance is only for use with the type of gas indicat-
ed on the rating plate. This appliance is not convertible for use with other gases, unless a certified kit is used.
Cet appareil peut installé dans une maison préfabriquée (mobile) déjà installée à demeure, si les réglements
locaux le permettent. Ce appareil doit être utilisé uniquement avec le type de gaz indiqué sure la plaque
signalétique. Cet appareil ne peut être converti à d’autres gaz, sauf si une trousse de conversion est utilsée.
Installation and Operation Instructions
Models
PFS
®
USC
Report No. F14-170
Ce manuel est disponible en francais, simplement
en faire la demande. Numéro de la pièce 900357-03.
P/N 900357-01 Rev. D 09/2016
AltairTM Series Direct-Vent Gas Fireplaces
Altair40DMN
Altair40DMP
Altair40DEN
Altair45DMN
Altair45DMP
Altair45DEN
P900357-01
2
DANGER
HOT GLASS WILL
CAUSE BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
A barrier designed to reduce the risk of burns from the hot viewing glass is pro-
vided with this appliance and shall be installed for the protection of children and
other at-risk individuals.
DANGER
PELIGRO
VITRE CHAUDE
RISQUE DE BRÛLURES.
NE TOUCHEZ PAS UNE VITRE
NON REFROIDIE.
NE LAISSEZ JAMAIS UN ENFANT
DE TOUCHER LA VITRE.
EL VIDRIO CALIENTE
CAUSARÁ QUEMADURAS.
USTED DEBE NUNCA
TOCAR EL VIDRIO CALIENTE.
LOS NIÑOS DEBEN NUNCA
TOCAR EL VIDRIO.
L’écran pare-étincelles fourni avec ce foyer réduit le risque de brûlure en cas de
contact accidentel avec la vitre chaude et doit être installé pour la protection Des
enfants et Des personnes à risques.
Una barrera diseñada para reducir el riesgo de quemaduras desde la mirilla (vidrio)
caliente es proveida con este aparato y deberá instalarse para la protección de los
niños y otros individuos en riesgo.
Vea el volante adjunto para la representación de color adecuado
See attached color flyer for proper color representation
Voir ci-joint tract pour une bonne représentation de la couleur
SAFETY AND YOUR FIREPLACE
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
3
Afin d’éviter les brûlures
graves ou les blessures,
ne pas retirer l’écran de
protection de la foyer qui
empêche tout contact
direct avec la vitre.
Suivez les instructions de sécurité
ci-dessous et veillez à ce que tous
les membres de votre famille soient
conscients du danger de brûlure
encouru :
• Les surfaces de votre foyer deviennent
EXTRÊMEMENT CHAUDES !
• La vitre située à l'avant du foyer atteint
des températures EXTRÊMEMENT
ÉLEVÉES et peut causer de graves
blessures en cas de contact.
• Tenez les enfants à l'écart du foyer
lorsqu'il fonctionne. Surveillez
attentivement les enfants dans les
pièces où un foyer est utilisé afin
d'éviter qu'ils ne soient en contact avec
la vitre.
• Tenez tous les vêtements, les meubles,
l'essence et tout autre liquide
inflammable à l'écart du foyer.
• Même après fermeture du gaz, les
surfaces du foyer restent extrêmement
chaudes.
Veillez à coller les Étiquettes de mise
en garde relatives à la sécurité
d'utilisation à l'endroit où vous
utilisez le foyer, pour rappeler à tous
les utilisateurs les dangers liés aux
températures élevées
(Pages 34)
.
Lisez L’information de sûreté
importante (Page 39)
.
Para evitar quemaduras y lesiones
graves, no quite el protector de malla
o guardia de seguridad que evita el
contacto directo con el vidrio.
Siga las instrucciones de seguridad
a continuación y asegúrese de que
todos en su hogar sepan acerca de este
peligro de quemadura:
• ¡Las superficies de la chimenea se
ponen MUY CALIENTES!
• El vidrio delante de la
chimenea alcanza temperaturas
EXTREMADAMENTE ALTAS y puede
causar quemaduras graves si se toca.
• Mantenga a los niños alejados de
la chimenea en funcionamiento.
Supervise en forma cercana a los niños
en cualquier cuarto donde haya una
chimenea funcionando para impedir el
contacto con el vidrio.
• Mantenga la ropa, mobiliario, gasolina
y otros líquidos inflamables alejados
de la chimenea.
• Aún después de haber apagado el
gas, las superficies de la chimenea
permanecen extremadamente
calientes.
Asegúrese de colocar las Etiquetas de
advertencia de seguridad de operación
en el lugar donde enciende la chimenea,
para que todos recuerden los peligros
asociados con las altas temperaturas
(Página 34)
.
Lea Información importante de
seguridad (Página 39).
Seguridad y su
chimenea
La sécurité et
votre foyer
[FRENCH][ENGLISH] [SPANISH]
Safety and Your
Fireplace
To prevent severe burns
and injuries, do Not
remove the barrier on the
appliance which prevents
direct contact with the
glass.
Follow the safety instructions below
and be sure everyone in your household
understands this burn hazard:
• The surfaces on your fireplace get
EXTREMELY HOT!
• The glass on the front of the
fireplace reaches EXTREMELY HIGH
temperatures and can cause severe
burns if touched.
• Keep children away from an operating
fireplace. Closely supervise children
in any room where a fireplace is
operating to prevent contact with glass.
• Keep clothing, furniture, gasoline, and
other flammable liquids away from the
fireplace.
• Even after the gas is turned off,
fireplace surfaces remain extremely
hot.
Be sure to attach the enclosed Safety-
in-Operation Warnings where you
turn on your fireplace, to help remind
everyone of the dangers associated with
high temperatures
(Pages 34)
.
Read Important Safety Information
(Page 39)
.
All parts of your
IHP fireplace get
EXTREMELY HOT!
Toutes les parties de votre
foyer IHP deviennent
EXTRÊMEMENT CHAUDES !
¡Todas las partes de la
chimenea IHP se ponen
MUY CALIENTES!
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
TABLE OF CONTENTS
Safety and Your Fireplace ......................... Page 2
Packaging ................................................Page 4
Introduction .............................................Page 4
General Information ................................. Page 4
Commonwealth of Massachusetts
Requirements .......................................Page 6
Cold Climate Insulation ............................ Page 7
Manufactured Home Requirements .........Page 7
Location ................................................... Page 7
Vent Termination Clearances ...................Page 8
Appliance and Vent Clearances ................Page 10
Pre-Installation Steps ...............................Page 11
Typical Installation Sequence .................. Page 11
Step 1. Framing ........................................Page 11
Step 2. Routing Gas Line .........................Page 13
Step 3. Vent Restrictor Installation...........Page 14
Step 4. Install The Venting System ..........Page 15
Vertical Termination Systems ...................Page 16
Horizontal Termination System ................ Page 21
Step 5. Field Wiring .............................. Page 27
Step 6. Optional Blower Kit Wiring ....... Page 28
Step 7. Connecting Gas Line ................Page 28
Step 8. Verifying Appliance Operation ......Page 29
Step 9. Installing Logs .........................Page 30
Step 10. Remove/Install Glass Door ......Page 32
Step 11. Burner Adjustments .................Page 32
Step 12. Attaching Safety-in
Operation Warnings ..............................Page 34
Step 13. Hood Installation ...................... Page 35
Finishing Requirements ...........................Page 35
Installation Accessories ...........................Page 36
Gas Conversion Kits ................................Page 37
Important Safety Information ...................Page 39
Installation, Service, And Maintenance
Notices .................................................Page 41
Appliance Operation Notices ................... Page 41
General Information ................................. Page 41
Operation/Care of Your Appliance ............ Page 43
Gas Controls Access ................................ Page 43
Variable Flame Adjustment .......................Page 44
Maintenance ............................................Page 45
Front Glass Enclosure Panel, Barrier,
Removal and Installation .....................Page 46
Install Volcanic Stone, Embers and Logs . Page 47
Burner Flame Appearance/Sooting and
Adjustments .........................................Page 49
Wiring Diagrams ..................................... Page 51
Accessory Components ...........................Page 52
Maintenance Schedule ............................. Page 55
Lighting Instructions ................................Page 56
Troubleshooting Guide ............................ Page 60
Replacement Parts List ........................... Page 62
Warranty .................................................Page 65
Please read and understand these
instructions before beginning your
installation.
PACKAGING
The assembled vented gas fireplace heater is
packaged with:
1 - logs in a carton located within the firebox.
2 - one plastic bag of glowing embers in the
bottom compartment.
3 - literature package containing the Installa-
tion and Operation Manual (this manual),
Safety Flyer, Glass and Barrier Flyer and
Safety-in-Operation Warning Labels.
4 - one rear and one top vent restrictor are
provided with this fireplace. See Page 14
for installation instructions.
5 - one hood.
6 - front face assembly with barrier installed.
7 - 4" top stand off taped diagonally to the rear
of the fireplace.
INTRODUCTION
The Millivolt appliances have a millivolt gas
control valve with piezo ignition system. If any
optional accessories that will require electrical
power are to be installed, the electrical power
must be provided at the time of appliance instal-
lation. The Electronic appliances are designed to
operate on natural or propane gas. An electronic
intermittent pilot ignition system provides safe,
efficient operation. External electrical power is
required to operate these units.
These vented gas fireplace heaters are sealed
combustion, air-circulating gas fireplaces de-
signed for residential applications.
Approved Vent Components - These fireplaces
are designed, tested and listed for operation
and installation with the following vent com-
ponents only:
• Secure Vent® Direct-Vent System Compo-
nents manufactured by IHP,
• Secure Flex® Flexible Vent Components
manufactured by IHP and
• Z-FLEX® Model GA Venting Systems listed
to UL1777 and ULCS635 manufactured by
Flexmaster Canada Limited.
Use only the correct size venting (4-1/2" inner
and 7-1/2" outer).
These approved vent system components are
labeled for identification. DO NOT use any
other manufacturer’s vent components with
these appliances.
NOTE:
• If the barrier becomes dam-
aged, the barrier shall be re-
placed with the manufacturer’s
barrier for this appliance.
• For use with barrier(s) Part
No(s). J7420 (40" Models) and
J7428 (45" Models).
Children and adults should be alerted to the
hazards of high surface temperature and
should stay away to avoid burns or clothing
ignition.
Les enfants et les adultes devraient être infor-
més des dangers que posent les températures
de surface élevées et se tenir à distance afin
d’éviter des brûlures ou que leurs vêtements
ne s’enflamment.
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATION AND LISTINGS OF THIS UNIT.
WARNING
Young children should be care-
fully supervised when they are
in the same room as the appli-
ance. Toddlers, young children
and others may be susceptible
to accidental contact burns. A
physical barrier is recommended
if there are at-risk individuals in
the house. To restrict access to
a fireplace or stove, install an
adjustable safety gate to keep
toddlers, young children and
other at-risk individuals out of
the room and away from hot
surfaces.
AVERTISSEMENT
Les jeunes enfants devraient être
surveillés étroitement lorsqu’ils
se trouvent dans la même pièce
que l’appareil. Les tout petits,
les jeunes enfants ou les adultes
peuvent subir des brûlures s’ils
viennent en contact avec la sur-
face chaude. Il est recommandé
d’installer une barrière physique
si des personnes à risques habi-
tent la maison. Pour empêcher
l’accès à un foyer ou à un poêle,
installez une barrière de sécu-
rité; cette mesure empêchera les
tout petits, les jeunes enfants et
toute autre personne à risque
d’avoir accès à la pièce et aux
surfaces chaudes.
GENERAL INFORMATION
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
NOTE: Installation and repair should be done
by a qualified service person. The appliance
should be inspected before use and at least
annually by a professional service person.
More frequent cleaning may be required due
to excessive lint from carpeting, bedding ma-
terial, et cetera. It is imperative that control
compartments, burners and circulating air
passageways of the appliance be kept clean.
Remarque: L’installation et la réparation
devrait être confiées à un technicien qualifié.
L’appareil devrait faire l’objet d’une inspection
par un technicien professionnel avant d’être
utilisé et au moins une fois l’an par la suite.
Des nettoyages plus fréquents peuvent être
nécessaires si les tapis, la literie, et cetera
produisent une quantité importante de pous-
sière. Il est essentiel que les compartiments
abritant les commandes, les brûleurs et les
conduits de circulation d’air de l’appareil
soient tenus propres.
Do not use this appliance if any part has
been under water. Immediately call a
qualified service technician to inspect the
appliance and to replace any parts of the
control system and any gas control which
has been under water.
Ne pas utiliser cet appareil s’il a été plongé,
même partiellement, dans l’eau. Ap-
peler un technicien qualifié pour inspecter
l’appareil et remplacer toute partie du
système de commande et toute commande
qui a été plongée dans l’eau.
IMPROPER INSTALLATION OR USE OF THIS
APPLIANCE CAN CAUSE SERIOUS INJURY OR
DEATH FROM FIRE, BURNS, EXPLOSION OR
CARBON MONOXIDE POISONING.
Only trim kit(s) supplied by the manufacturer
shall be used in the installation of this ap-
pliance.
Seules les trousses de garniture fournies
par le fabricant doivent être utilisées pour
l’installation de cet appareil.
These appliances comply with National Safety
Standards and are tested and listed by PFS.
(Report No. F14-170) to ANSI Z21.88 (in
Canada, CSA-2.33), and CAN/CGA-2.17-M9,
latest editions, in both USA and Canada, as
vented gas fireplace heaters.
Both millivolt and electronic versions of these
appliances are listed by PFS Corporation for
installation in bedrooms and Manufactured
Homes or Mobile Homes.
Misc. Codes / Standards -
The Installation must conform to local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54—latest
edition (USA), or the Natural Gas and Propane
Installation Code, CAN/CGA B149.1-latest edi-
tion (Canada).
The appliance, when installed, must be electri-
cally grounded and wired in accordance with
local codes or, in the absence of local codes,
with the National Electrical Code, ANSI/NFPA
70—latest edition, or the Canadian Electrical
Code, CSA C22.1—latest edition.
Provide adequate clearances around air open-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front or back openings of the appliance.
These appliances are designed to operate on
natural or propane gas only. The use of other
fuels or combination of fuels will degrade
the performance of this system and may be
dangerous.
These fireplaces are designed as supplemental
heaters. Therefore, it is advisable to have an
alternate primary heat source when installed
in a dwelling.
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Millivolt Models - The millivolt appliances are
manually controlled and feature a spark igniter
(piezo) that allows the appliance's pilot gas to
be lit without the use of matches or batteries.
This system provides continued service in the
event of a power outage.
Electronic and Millivolt models come standard
with a manually-modulated gas valve; flame ap-
pearance and heat output can be controlled at the
gas valve. The BTU Input for these appliances
is shown in Pages 1.
Input (BTU/HR) Gas Valves (all models)
Models Input Rate (BTU / HR)
Nat. Gas Prop. Gas
40" 27,000 high
21,000 low 27,000 high
21,000 low
45" 31,000 high
25,000 low 29,000 high
23,000 low
Table 1
WARNING
Improper installation, adjust-
ment, alteration, service or
maintenance can cause injury
or property damage. Refer to
this manual. For assistance or
additional information consult
a qualified installer, service
agency or the gas supplier.
WARNING
Failure to comply with these
installation instructions will result
in an improperly installed and
operating appliance, voiding its
warranty. Any change to this appli-
ance and/or its operating controls
is dangerous.
WARNING
Clothing or other flammable
material should not be placed
on or near the appliance.
WARNING
Improper installation or use of
this appliance can cause serious
injury or death from fire, burns,
explosion or carbon monoxide
poisoning.
AVERTISSEMENT
On ne devrait pas placer de
vêtements ni d’autres matières
inflammables sur l’appareil ni à
proximité.
AVERTISSEMENT
Tout écran ou protecteur retiré
pour permettre l’entretien de
l’appareil doit être remis en
place avant de mettre l’appareil
en marche.
WARNING
Any safety screen, guard, or
barrier removed for servicing
an appliance must be replaced
prior to operating the appliance.
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Test gauge connections are provided on the
front of the millivolt and electronic gas control
valve (identified IN for the inlet and OUT for
the manifold side). The control valves have a
3/8" (10 mm) NPT thread inlet and outlet side
of the valve (refer to Figures 1 and 2).
Propane tanks are at pressures that will cause
damage to valve components. Verify that the
tanks have step down regulators to reduce the
pressure to safe levels.
In Canada - CAN/CGA-2.17-M91 (R2009)
(high altitude):
THE CONVERSION SHALL BE CARRIED
OUT BY A MANUFACTURER’S AUTHO-
RIZED REPRESENTATIVE, IN ACCOR-
DANCE WITH THE REQUIREMENTS OF
THE MANUFACTURER, PROVINCIAL OR
TERRITORIAL AUTHORITIES HAVING
JURISDICTION AND IN ACCORDANCE
WITH THE REQUIREMENTS OF THE
CAN/CGA-B149.1 OR CAN/CGA-B149.2
INSTALLATION CODES.
Gas Valve Diagrams
See Figure 1 for Millivolt models and Figure 2
For Electronic Models.
Orifice Sizes - Sea Level to High Altitude
(All Models)
These appliances are tested and approved for
installation at elevations of 0-4500 feet (0-1372
meters) above sea level using the standard burner
orifice sizes (marked with an "*" in Table 4).
For elevations above 4500 feet, contact your
gas supplier or qualified service technician.
Manifold Gas Supply Pressure
(all models)
Fuel # Low High
Natural
Gas
(Lo) 2.2" WC
(0.55 kPa)
(Hi) 3.5" WC
(0.87 kPa)
Propane (Lo) 6.3" WC
(1.57 kPa)
(Hi) 10.0" WC
(2.49 kPa)
Table 3
The appliance must be isolated from the
gas supply piping system by closing its
equipment 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).
The appliance and its appliance main gas
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).
Deration - At higher elevations, the amount
of BTU fuel value delivered must be reduced
by either:
• Using gas that has been derated by the gas
company.
• Changing the burner orifice to a smaller size
as regulated by the local authorities having
jurisdiction and by the (USA) National Fuel
Gas Code NFPA 54/ANSI Z223.1—latest
edition or, in Canada, the CAN/CGA-B149.1
codes—latest edition.
Flame breadth, height and width will diminish
4% for every 1,000 feet of altitude.
Inlet Gas Supply Pressure
(all models)
Fuel # Minimum Maximum
Natural Gas 4.5" WC
(1.12 kPa)
10.5" WC
(2.61 kPa)
Propane 11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
Table 2
Gas Pressure - All Models
Tables 2 and 3 show the appliances' inlet and
manifold gas pressure requirements:
Figure 2 - SIT Electronic Gas Valve
Main Gas Inlet
3/8" NPT
Inlet (IN)
Test Port
Manifold
(OUT)
Test Port
Green Wire
(From DFC Wire
Harness)
Yellow Ground Wire
(From DFC Wire
Harness)
Hi/Lo Flame
Control Knob
Orange
Wire
(From DFC
Wire
Harness)
COMMONWEALTH OF MASSACHUSETTS
REQUIREMENTS
These appliances are approved for installation in
the US state of Massachusetts if the following
additional requirements are met:
• Install this appliance in accordance with
Massachusetts Rules and Regulations 248
C.M.R. Sections 4.00 through 8.00.
• Installation and repair must be done by a
plumber or gas fitter licensed in the Com-
monwealth of Massachusetts.
• The flexible gas line connector used shall
not exceed 36 inches (92 centimeters) in
length.
• The individual manual shut-off must be a
T-handle type valve.
Massachusetts Horizontal Vent Requirements
In the Commonwealth of Massachusetts, hori-
zontal terminations installed less than seven
(7) feet above the finished grade must comply
with the following additional requirements:
• A hard wired carbon monoxide detector
with an alarm and battery back-up must be
installed on the floor level where the gas
fireplace is installed. The carbon monoxide
detector must comply with NFPA 720, be
ANSI/UL 2034 listed and be ISA certified.•
A metal or plastic identification plate must
be permanently mounted to the exterior of
the building at a minimum height of eight (8)
feet above grade and be directly in line with
the horizontal termination. The sign must
read, in print size no less than one-half (1/2)
inch in size, GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS.
H
I
LO
W
HTPTHTPT
P
I
L
O
T
P
I
L
O
T
O
N
it
O
F
F
IN OUT
HI/LO Variable
Flame Height
Adjustment
Figure 1 - SIT Millivolt Gas Valve
Manifold Pressure Tap
Inlet Pressure Tap
Pilot Adjustment
Screw
Main Gas Control Knob
OFF/PILOT/ON
Burner Orifice Sizes
Elevation 0-4500 feet ( 0-1372 meters)
Model
Series Nat.Gas
drill size (inches) Propane
drill size (inches)
40" #40 (0.0980")*
69L96 •
#53 (0.0595")*
39L10•
45" #37 (0.1040")*
24M10 •
(0.0620")*
21L01 •
Table 4 * Standard size installed at factory
• Part /Cat. Number
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
HORIZONTAL VENT
(Rear Vent Application with a chase) HORIZONTAL VENT
(Top Vent Application)
VERTICAL VENT
(Top Vent Application)
(Rear Vent Application)
VERTICAL VENT (Rear Vent Application without a chase)
HORIZONTAL VENT
LOCATION
In selecting the location, the aesthetic and
functional use of the appliance are primary
concerns. However, vent system routing to
the exterior and access to the fuel supply are
also important.
Due to high temperatures, the appliance
should be located out of traffic and away from
furniture and draperies (Figure 3).
En raison des températures élevées, l’appareil
devrait être installé dans un endroit où il y a
peu de circulation et loin du mobilier et des
tentures (Figure 3).
The location should also be free of electrical,
plumbing or other heating/air conditioning
ducting.
These direct-vent appliances are uniquely
suited for installations requiring a utility shelf
positioned directly above the fireplace. Util-
ity shelves like these are commonly used for
locat-ing television sets and decorative plants.
Be aware that this is a heat producing ap-
pliance. Objects placed above the unit are
exposed to elevated temperatures.
Do not insulate the space between the ap-
pliance and the area above it (see Figure 8).
The minimum height from the base of the appli-
ance to the underside of combustible materials
used to construct a utility shelf in this fashion
is shown in Figure 8.
The appliance must be mounted on a fully sup-
ported base extending the full width and depth of
the unit. The appliance may be located on or near
conventional construction materials. However,
if installed on combustible materials, such as
carpeting, vinyl tile or other combustible material
other than wood flooring, the appliance shall be
installed on a metal or wood panel extending the
full width and depth of the appliance.
COLD CLIMATE INSULATION
For cold climate installations, seal all cracks
around your appliance with noncombustible
material and wherever cold air could enter
the room. It is especially important to insulate
outside chase cavity between studs and under
floor on which appliance rests, if floor is above
ground level. Gas line holes and other open-
ings should be caulked or stuffed with unfaced
fiberglass insulation.
If the fireplace is being installed on a cement
slab in cold climates, a sheet of plywood or
other raised platform can be placed underneath
to prevent conduction of cold transferring to
the fireplace and into the room. It also helps to
sheetrock inside surfaces and tape for maximum
air tightness and caulk firestops.
MANUFACTURED HOME
REQUIREMENTS
This appliance may be installed in an aftermar-
ket permanently located, manufactured home
and must be installed in accordance with the
manufacturer's instructions.
Cet appareil peut être installé cómme du matéri-
el d'origine dans une maison préfabriquée (É.U.
seulement) ou mobile et doit être installé selon
les instructions du fabricant.
This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is
not convertible for use with other gases, unless
a certified kit is used.
Cet appareil doit être utilisé uniquement avec le
type de gaz indiqué sur la plaque signalétique.
Cet appareil ne peut être converti à d'autres gaz,
sauf si une trousse de conversion est utilisée.
CAUTION: Ensure that the cross mem-
bers are not cut or weakened during
installation. The structural integrity of
the manufactured home floor, wall, and
ceiling / roof must be maintained.
CAUTION: This appliance must be ground-
ed to the chassis of the manufactured
home in accordance with local codes or
in the absence of local codes, with the
National Electrical Code ANSI / NFPA 70—
latest edition or the Canadian Electrical
Code CSA C22.1—latest edition.
Figure 3 - Typical Locations
APPLICATION
REAR VENT
APPLICATION
TOP VENT
APPLICATION
TOP VENT
REAR VENT
APPLICATION
TOP VENT
APPLICATION
RECESSED
INSTALLATION
TOP VENT
APPLICATION
APPLICATION
TOP VENT
APPLICATION
TOP VENT
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
12
X
Roof Pitch is X/12
2 FT
MIN.
2 FT MIN.
Lowest
Discharge
Opening
H*
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
TERMINATION HEIGHTS FOR VENTS ABOVE
FLAT OR SLOPED ROOFS
Horizontal Overhang
Vertical
Wall
Vent
Termination
Storm Collar
Concentric
Vent Pipe
Flashing
1 inch (26 mm) Minimum
Clearance to Combustibles
Figure 5
Vertical Vent Termination Clearances
VENT TERMINATION CLEARANCES
These instructions should be used as a
guideline and do not supersede local codes
in any way. Install venting according to local
codes, these instructions, the current National
Fuel Gas Code (ANSI-Z223.1) in the USA or
the current standards of CAN/CGA-B149.1
in Canada.
Vertical Vent Termination Clearances
Terminate multiple vent terminations according to
the installation codes listed above and Figures
4 and 5.
NOTE" See Figure 37 on Page 22 for the exterior wall recess
allowances of the square horizontal termination.
Termination Heights For Vents
Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z223.1
Roof Pitch * Feet * Meters
Flat to 6/12 1.0 0.3
6/12 to 7/12 1.25 0.38
7/12 to 8/12 1.5 0.46
8/12 to 9/12 2.0 0.61
9/12 to 10/12 2.5 0.76
10/12 to 11/12 3.25 0.99
11/12 to 12/12 4.0 1.22
12/12 to 14/12 5.0 1.52
14/12 to 16/12 6.0 1.83
16/12 to 18/12 7.0 2.13
18/12 to 20/12 7.5 2.29
20/12 to 21/12 8.0 2.44
The vent / air intake termination clearances
above the high side of an angled roof is as
shown in the following chart:
Figure 6
6"
(152 mm)
12"
(305 mm)
Combustible Projection greater
Horizontal Vent Termination Clearances
Combustible Projection
2-1/2”
or less in length
18"
(457 mm)
V
entilated
Soffit Unventilated
Soffit
than 2-1/2” in length
Termination Kit
Side Elevation View
Termination Kit
All horizontal terminations
may be located as close as
6” (152mm) to any
(non-combustible and
combustible) exterior
sidewall. This distance
may be decreased to 2”
(51mm) for non--
combustible exterior
sidewalls only, if the
SV4.5HT-2 termination
is used.
Horizontal Vent Termination Clearances
The horizontal vent termination must have a minimum of 6" (152 mm) clearance to any overhead
combustible projection of 2-1/2" (64 mm) or less (see Figure 6). For projections exceeding 2-1/2"
(64 mm), see Figure 6. For additional vent location restrictions refer to Figure 7 on Page 7.
Figure 4 - Multiple Terminations
12”
(305mm)
Minimum
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
9
Figure 7
U.S. Installation ** Canadian Installation *
AClearance above grade, veranda, porch, desk, or balcony 12” (300 mm) ** 12” (300 mm) *
BClearance to window or door that may be opened 6” (150 mm)
for fireplaces < 10,000 Btu/h (3 kW),
9” (230 mm)
for fireplaces > 10,000 Btu/h (3 kW), and < 50,000 Btu/h (15
kW),
12” (300 mm)
for fireplaces > 50,000 Btu/h (15 kW) **
6” (150 mm)
for fireplaces < 10,000 Btu/h (3 kW),
12” (300 mm)
for fireplaces > 10,000 Btu/h (3 kW)
CClearance to permanently closed window 9” (229 mm)
recommended to prevent window condensation
12” (305 mm)
recommended to prevent window
condensation
DVertical clearance to ventilated soffit located above the
termination within a horizontal distance of 18” (458 mm)
18” (458 mm) 18” (458 mm)
EClearance to unventilated soffit 12” (305 mm) 12” (305 mm)
FClearance to outside corner 5” (127 mm)
minimum
5” (127 mm)
minimum
GClearance to inside corner 6” (152 mm) minimum 6” (152 mm) minimum
HClearance to each inside of center line extended above
meter / regulator assembly
36” (910 mm)
within a height of 15 ft above the meter / regulator assembly **
36” (910 mm)
within a height of 15 ft above the meter /
regulator assembly *
IClearance to service regulator vent outlet 36” (910 mm)** 36” (910 mm)*
JClearance to nonmechanical air supply inlet to building or
the combustion air inlet to any other fireplace
6” (150 mm)
for fireplaces < 10,000 Btu/h (3 kW),
9” (230 mm)
for fireplaces > 10,000 Btu/h (3 kW) and < 50,000 Btu/h (15 kW),
12” (300 mm)
for fireplaces > 50,000 Btu/h (15 kW)**
6” (150 mm)
for fireplaces < 10,000 Btu/h (3 kW),
12” (300 mm)
for fireplaces > 10,000 Btu/h (3 kW)
KClearance to a mechanical air supply inlet 36” (910 mm) above if within 10 ft (3 m) horizontally ** 72” (1830 mm) *
LClearance above paved sidewalk or paved driveway located
on public property
84” (2130 mm) ‡ 84” (2130 mm) ‡
MClearance under veranda, porch, deck or balcony 12” (300 mm) *‡ 12” (300 mm) *‡
NDepth of alcove (maximum) 72” (1830 mm) ** 72” (1830 mm) *
OClearance to termination (alcove) 6” (15.2 mm) ** 6” (15.2 mm)*
PWidth of alcove (minimum) 36” (910 mm) ** 36” (910 mm) *
QClearance to combustible above (alcove) 18” (457 mm) ** 18” (457 mm) *
*
**
‡
*‡
In accordance with the current CAN/CGA-B149.1 National Gas And Propane Installation Code
In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Codes
A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings
Only permitted if veranda, porch, deck, or balcony is fully-open on a minimum two sides beneath the floor
Fixed
Closed Openable Fixed
Closed
V
V
VV
V
V
X
X
VX
G
G
J
F
B
B
K
H
I
A
E
L
D
B
M
C
B
V
V
A
G
G
B
TERMINATION CAP AIR SUPPLY INLET GAS METER RESTRICTED AREA
(TERMINATION PROHIBITED)
Openable
See Figure 5
V
V
Inside Corner
VV
Outside Corner Recessed Location
Balcony with No Side Wall
V
Balcony with Perpendicular Side Wall
G
F
M
M
NP
O
Q
EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 9 - Minimum Mantel Clearances
All Models Combustible Shelf Height - Inches (millimeters)
Secure Vent
®
Secure Flex
®
(flex elbow)
Top Vent *50-1/2 (1283) *52-1/4 (1327)
Rear Vent *40-1/4 (1022) *40-1/4 (1022)
Figure 10 - Minimum Distance to Side Wall
MINIMUM CLEARANCES TO COMBUSTIBLES
Appliance And Vent Clearances
The appliance is approved with zero clearance to combustible materials
on all sides (as detailed in Table 5), with the following exception: When
the unit is installed with one side flush with a wall, the wall on the
other side of the unit must not extend beyond the front edge of the
unit. In addition, when the unit is recessed, the side walls surrounding the
unit must not extend beyond the front edge of the unit (see Figure 10).
MINIMUM CLEARANCES* Inches (millimeters)
Back 1" (26)
0 (0) from Spacers Or Dimples
Sides 1/2" (13)
0 (0) from Spacers Or Dimples **
Top of Fireplace 4" (101)
Floor 0 (0)
From Bottom of Unit To Ceiling 64 (1626)
Vent 3 (77) Top* / 1 (26) Sides & Bottom
SERVICE CLEARANCES Feet (meters)
Front 3 feet (0.9 meters)
Table 5
*NOTE: 3" (77 mm) above any horizontal/inclined vent component.
**NOTE: See Page 11, Step 1 for clearance requirements to the nailing
flange located at each side of the unit and any screw heads adjacent to it.
Hearth Extension - A hearth extension is not required with this appliance.
If a hearth extension is used, do not block the lower control compartment
door. Any hearth extension used is for appearance only and does not
have to conform to standard hearth extension installation requirements.
Shelf Height - To provide for the lowest possible shelf surface, use the
alternate rear vent outlet, the venting attached to the top vent should be
routed in a way to minimize obstructions to the space above the appliance.
Do not insulate the space between the appliance and the area above
it (see Figure 8). The minimum height from the base of the appliance to
the underside of combustible materials used to construct a utility shelf in
this fashion is shown in Figure 8.
Wall Finishes / Surrounds / Mantels
NOTE: Combustible wall finish materials and/or surround materials must
not be allowed to encroach the area defined by the appliance front face
(black sheet metal). Never allow combustible materials to be positioned
in front of or overlapping the appliance face (see Figure 61 on Page 35).
Non-combustible materials, such as surrounds and other appliance trim,
may be installed on the appliance face with these exceptions: they must not
cover any portion of the removable glass panel or control compartment.
Vertical installation clearances to combustible mantels vary according
to the depth of the mantel. See Figure 9. Mantels constructed of non-
combustible materials may be installed at any height above the appliance
opening; however, do not allow anything to hang below the fireplace hood.
Minimum clearance requirements include any projections such as shelves,
window sills, mantels, etc. above the appliance.
NOTE: To avoid heat-related finish damage, we recommend the use of high
temperature paint (rated 175° F or higher) on the underside of the mantel.
* Includes 3” clearance to combustibles (required above vent components)
Combustible materials may project beyond one side of the fireplace
opening as long as they are kept within the shaded areas illustrated here.
Figure 8 -
Shelf Height Minimum Clearances With Top Venting
17"
14"
Min. Distance To
Unprotected
Perpendicular Side Wall
8-1/4"
45º
Combustible Materials
Allowed In Shaded
Area “Safe Zone”
12"
5"
Top View Of
Fireplace
Side
Wall
Side
Wall
Min. Distance
To Protected
Perpendicular
Side Wall
12 (305) MANTEL
10 (254) MANTEL
8 (203) MANTEL
6 (152) MANTEL
4 (102) MANTEL
8
(203)
18
(457) 16
(406) 14
(356) 2 (51) MANTEL
TOP OF
APPLIANCE
10
(254)
12
(305)
MANTEL CLEARANCES
Inches (mm)
Shelf Above Fireplace With Rear Venting Shelf Above Fireplace With Top Venting
Shelf Height
(see table)
Shelf Height
(see table)
Do not insulate the
space between the ap-
pliance and the area
above it.
Do not insulate the
space between the
appliance and the area
above it.
Inches (millimeters)
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
11
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
IMPORTANT!
Install top standoff
and bend up appropriate
drywall backstops (1/2" or 5/8")
before installing fireplace.
Top Standoff
(installed)
Drywall Backstops
(bent up for 1/2"
or 5/8")
PRE-INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired.
1. Remove the shipping carton. Remove the
shipping pad. Remove front face assembly
and hood exposing the front glass door.
2. Open the two spring latches securing the
glass door (under the firebox floor). Remove
the door by tilting it outward at the bottom
and lifting it up. Set the door aside, taking
care to protect it from inadvertent damage.
See Removing The Glass Enclosure Panel on
Page 32.
3. Remove the log set from the firebox. Handle
logs carefully to prevent breakage.
4. Remove the embers and volcanic stone from
the control compartment.
5. Remove top standoff (taped to side of outer
wrapper).
6. Remove the 4 screws on top, and install the
top standoff with the 4 screws (see Figure
11).
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation is outlined
below. However, each installation is unique and
may result in variations to the steps described.
See the page numbers references in the follow-
ing steps for detailed procedures.
Step 1. FRAMING (Page 11): Install top
standoff spacer. Construct the appliance
framing. Position the appliance within the
framing. Secure with nailing flanges.
Step 2. (Page 13) Route gas supply line to
appliance location.
Step 3. (Page 14) Preparing the appliance
vent collar.
Step 4. (Page 15) Install the vent system and
exterior termination.
Step 5. (Page 27) Field Wiring
a. Millivolt Appliances - Install the operat-
ing control switch (not factory provided)
and bring in electrical service line for forced
air-circulating blower (optional equipment).
b. Electronic Appliances - Field wire and
install operating control switch.
Step 6. (Page 28) Install blower kit (optional
equipment).
Step 7. (Page 28) Make connection to gas
supply.
Step 8. (Page 29) Verifying appliance operation.
Step 9. (Page 30) Install the logs, decorative
volcanic stone and glowing embers.
Figure 12 - Side Nailing Flanges
Figure 11 - Top Standoff Spacer
NOTE: The nailing flanges, combustible members,
and screw heads in areas directly adjacent to
the nailing flanges are EXEMPT from the 1/2"
clearance to combustible requirements for the
firebox outer wrapper.
Combustible framing may be in direct contact with
the nailing flanges and may be located closer than
1/2" from screw heads and the firebox wrapper in
areas adjacent to the nailing flanges.
Frame the opening to the exact dimensions
specified in the framing details in this manual.
Side
Framing
Unit Nailing Flange
(No clearance to
combustible framing
is required)
Step 10. (Page 32) Install glass door front face
assembly and hood..
Step 11. (Page 32) Adjust burner to ensure
proper flame appearance.
Step 12. (Page 34) Attach Safety-In-Operation
Warnings.
Step 1. FRAMING
Frame these appliances as illustrated in Figures
13 and 14 on Pages 12 and 13 (Figure 14
applies to corner framing installations only).
All framing details must allow for a minimum
clearance to combustible framing members as
shown in Table 5 on Page 10.
If the appliance is to be elevated above floor level,
a solid continuous platform must be constructed
below the appliance.
Headers may be in direct contact with the
appliance top standoff spacer (Figure 11),
maintaining the 4" clearance to the fireplace top,
but must not be supported by them or notched
to fit around them. All construction above the
appliance must be self-supporting. DO NOT use
the appliance for structural support.
The fireplace should be secured to the side
framing members using the unit's side nailing
flanges - one top and bottom on each side of
the fireplace front. See Figure 12. Use 8d nails
or their equivalent.
SIDE NAILING FLANGES
Bend out the appropriate nailing flanges for
the drywall/finish material to be used. Nailing
flanges are provided for flush framing, 1/2" and
5/8" framing depths (see Figure 12).
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
12
FIREPLACE AND FRAMING SPECIFICATIONS
Vent Size
Co-axial DV
Vent Size
4-1/2" Inner
7-1/2" Outer
Vertical Venting Through the Ceiling:
Frame ceiling opening - Use a plumb line
from the ceiling above the appliance to locate
center of the vertical run. Cut and/or frame an
opening, 10-1/2" x 10-1/2" (267 mm x 267
mm) inside dimensions, about this center
mark (see Figure 22).
NOTES
Diagrams, illustrations and pho-
tographs are not to scale - consult
installation instructions. Product
designs, materials, dimensions,
specifications, colors and prices
are subject to change or discontinu-
ance without notice.
Input (BTU/HR) - MV & Electronic
Input Rate (BTU / HR)
Models Nat. Gas Prop. Gas
40" 27,000 27,000
45" 31,000 29,000
Efficiencies %
Natural Gas Propane
Models AFUE P4 AFUE P4
40" 67 60 67 63
45" 67 63 68 65
Framing
Models A B C D E
40" in. 40-3/8 41-1/4 24 27-1/2 43-5/8
mm 1026 1048 610 699 1108
45" in. 45-3/8 41-1/4 24 27-1/2 43-5/8
mm 1153 1048 610 699 1108
Viewable Glass Size
40" Model 34-1/2" Wide
24" High
45" Model 39-1/2" Wide
24" High
Inches (mm)
Vent Framing - Rear Vent
With no Elbows
Framing should be constructed
of 2x4 or larger lumber.
Vent Framing - Top Vent
With One 90º Elbow
Based on CSA P. 4.1-09
WARNING
Failure to position the parts in
accordance with these diagrams
or failure to use only parts specifi-
cally approved with this appliance
may result in property damage or
personal injury.
AVERTISSEMENT
Risque de dommages ou de
blessures si les pièces ne sont
pas installées conformément à
ces schémas et ou si des pièces
autres que celles spécifiquement
approuvées avec cet appareil sont
utilisées.
Figure 13
Model F G H J K L M N
40" in. 41-1/8 37-1/8" 24 34-1/2 40-1/8 27-1/2 26-1/2 13-3/4
mm 1045
943
609 876 1019 698 675 337
45" in. 41-1/8 37-1/8" 24 39-1/2 45-1/8 27-1/2 31-1/2 15-3/4
mm 1045
943
609 1003 1146 698 802 401
K
G
J
H
Front View
4 (102)
F
L
1/2 (13)
3 (76)
Right Side View
Electrical
Inlet
7
(179)
20-7/8
(531)
10-1/8
(257)
Hood
M
N
Top View
10-7/8
(275)
Concentric Flue:
Flue
4-1/2” (114 mm);
Combustion Air
7-1/2” (190 mm).
Header
Spacing
Top
Standoff
GAS INLET
(either side
and bottom)
Front Face
Assembly
and Barrier
Gas control
access panel
2 (52)
A
BE
7
(178)
5-1/8
12-1/8
(308)
10-1/2
(267)
D
(130)
(130)
7
(308)
(178)
¹⁄₂ A
C
5-1/8 12-1/8
Side Framing
Spacers = 1/2"
Rear Framing
Spacers
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
1 (26)
13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
FIREPLACE FRAMING SPECIFICATIONS
Figure 14 - Corner Framing with Horizontal Termination
Schedule 40
Black Iron Pipe
Inside Diameter (Inches)
Schedule 40 Pipe
Length (feet)
Natural
Gas
Propane
Gas
0-10 1/2 3/8
10-40 1/2 1/2
40-100 1/2 1/2
100-150 3/4 1/2
150-200 3/4 1/2
Table 6
NOTES:
• All appliances are factory-equipped with a
flexible gas line connector and 1/2" shutoff
valve (see Figure 50 on Page 29).
• See Massachusetts Requirements on Page
6 for additional requirements for installations
in the state of Massachusetts in the USA.
• The gas supply line should Not be connected
to the appliance until Step 7 (Page 28).
• A pipe joint compound rated for gas should be
used on the threaded joints. Ensure propane
resistant compounds are used in propane
applications. Be very careful that the pipe
compound does not get inside the pipe.
• It is recommended to install a sediment trap
in the supply line as close as possible to the
appliance. Appliances using Propane should
have a sediment trap at the base of the tank.
• Check with local building official for local
code requirements (i.e. are below grade
penetrations of the gas line allowed?, etc).
IMPORTANT: If propane is used, be aware that
if tank size is too small (i.e. under 100-lbs, if
this is the only gas appliance in the dwelling.
Ref. NPFA 58), there may be loss of pressure,
resulting in insufficient fuel delivery (which
can result in sooting, severe delayed ignition
or other malfunctions). Any damage resulting
from an improper installation, such as this,
is not covered under the limited warranty.
Proper Sizing of Gas Line
Properly size and route the gas supply line from
the supply regulator to the area where the appli-
ance is to be installed per requirements outlined
in the National Fuel Gas Code, NFPA 54—latest
edition (USA) or CAN/CGA-B149.1—latest edi-
tion (Canada).
Also see Figure 13 on Page 12.
Figure 15 - Route Gas Line
Step 2. ROUTING GAS LINE
Route a 1/2" (13 mm) gas line to the left side
of the appliance as shown in Figure 15. Gas
lines must be routed, constructed and made
of materials that are in strict accordance with
local codes and regulations. All appliances
are factory-equipped with a flexible gas line
connector and 1/2" shutoff valve. (See Figure
50 on Page 29).
Never use galvanized or plastic pipe. Refer
to Table 6 for proper sizing of the gas sup-
ply line, if black iron pipe is being used. Gas
lines must be routed, constructed and made
of materials that are in strict accordance with
local codes and regulations. We recommend
that a qualified individual such as a plumber or
gas fitter be hired to correctly size and route
the gas supply line to the appliance. Installing
a gas supply line from the fuel supply to the
appliance involves numerous considerations of
materials, protection, sizing, locations, controls,
pressure, sediment, and more. Certainly no one
unfamiliar and unqualified should attempt sizing
or installing gas piping.
*C
a
7” (178mm)
b
*D
*E
*F
A
*B
Left Side
Front Corner of
Fireplace Framing
6-1/2"
(152 mm)
3"
(77 mm)
Framing
Model A B C D E F
40" in. 40-3/8 67-3/4 47-7/8 25-3/4 33-7/8 5-3/4
mm 1026 1721 1216 654 860 146
45" in. 45-3/8 72-3/4 51-1/2 25-1/8 36-3/8 7-1/2
mm 1153 1848 1308 638 924 191
* These dimensions occur when one 45º elbow is connected directly
to the appliance collar.
NOTE: Venting requirements for rear vent applications in corner installa-
tions - the horizontal vent length “a” to “b,” must not exceed 28" (711 mm)
Back wall of chase/enclosure(including
any finishing materials)
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
14
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vent Restrictor Installation in
TOP VENT Systems
Install the top vent restrictor (provided in the
bottom control compartment of fireplace) in
any vent run with more than 8 ft. of vertical
rise.
1. Remove the screws from the top cover
plate inside the firebox (see Figure 17).
Discard the top cover plate.
2. Using two of the screws that were removed
from the top cover plate, install the top
restrictor as shown in Figure 20.
NOTE: The screws are installed into the
holes in the air collector box.
NOTE: Use these instructions only when
the horizontal termination is attached
directly to the fireplace.
Vent Restrictor Installation
The fireplace ships with the following:
• (1) rear solid cover plate (ships installed
over rear vent hole; similar to top solid
cover plate shown in Figure 17)
• (1) top solid cover plate (ships installed
over top vent hole; refer to Figure 17)
• (1) rear vent restrictor plate (square
plate with two rectangular holes; ships
uninstalled in literature bag)
• (1) U-shaped vent restrictor (ships
uninstalled in literature bag)
• (1) top vent flue restrictor (ships
uninstalled and taped to log set in firebox)
Vent Restrictor Installation in
REAR VENT Systems
IF REAR VENT HORIZONTAL VENT
LENGTH IS 7 INCHES OR SHORTER:
Install the rear vent restrictor plate
as shipped (see Figure 16) over the
rear vent hole using the 4 previously
removed screws, as shown in Figure
17.
IF REAR VENT HORIZONTAL VENT
LENGTH IS LONGER THAN 7 INCHES:
All models: Reinstall the 4 previously
removed screws only, into the rear
cover plate screw holes. Do NOT install
the rear vent restrictor plate.
KNOCKOUT
CAP AND
GASKET
CROSS SECTION
REAR VENT
COVER PLATE
SECURING SCREWS
CABINET BACK
(INSIDE UNIT) (OUTSIDE UNIT)
REAR VENT SEAL AND COVER PLATE REMOVAL
WHEN USING THE REAR VENT
When rear venting, remove the outer wrapper
knockout, cover plate, and gasket from outside
the unit (Figure 18).
Figure 16
Figure 20
Rear Vent Restrictor Plate
as shipped from factory.
Figure 17
Top Solid Cover Plate (shown
installed over top vent hole)
Rear Vent Restrictor Plate
(shown installed over rear vent hole
after Rear Solid Cover Plate was
removed)
Figure 18
U-SHAPED VENT
RESTRICTOR
APPLIANCE REAR
VENT OUTLET
INNER FIREPLACE
COLLAR
Installation of the U-shaped vent restrictor is
required in rear vent applications with vertical
vent runs over 8 feet.
Install the vent restrictor from outside the unit
in the inner fireplace collar of the rear vent outlet,
oriented as shown below.
U-SHAPED VENT RESTRICTOR INSTALLATION
(REAR VENT)
IF REAR VENT VERTICAL VENT LENGTH
IS 8 FEET OR LONGER:
All models: Before attaching the first
piece of venting pipe or elbow, install the
U-shaped vent restrictor into the rear vent
collar from outside the unit (Figure 19).
The U-shaped vent restrictor is held in
place by friction.
Figure 19
Top Vent Restrictor
Install Screws (2 places)
Firebox ceiling
Firebox ceiling
Step 3. VENT RESTRICTOR INSTALLATION
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
15
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Step 4. INSTALL THE VENT SYSTEM
General Information
These instructions should be used as a
guideline and do not supersede local codes
in any way. Install venting according to local
codes, these instructions, the current National
Fuel Gas Code (ANSI-Z223.1) in the USA or
the current standards of CAN/CGA-B149.1
in Canada.
Ensure clearances are in accordance with
local installation codes and the requirements
of the gas supplier.
Dégagement conforme aux codes d'installation
locaux et aux exigences du foumisseunde gaz.
Use only approved venting components.
See Approved Vent Components on
Page 4.
These fireplaces must be vented directly
to the outside.
The vent system may not service multiple
appliances, and must never be connected to a
flue serving a separate solid fuel burning appli-
ance. The vent pipe is tested to be run inside
an enclosed wall (such as a chase). There is
no requirement for inspection openings in the
enclosing wall at any of the joints in the vent pipe.
Select Venting System - Horizontal or Vertical
With the appliance secured in framing, determine
vent routing and identify the exterior termina-
tion location. The following sections describe
vertical (roof) and horizontal (exterior wall)
vent applications. Refer to the section relating
to your installation. A list of approved venting
components are shown on Pages 35 and 36.
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
16
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
NOTE: Convert inches into metric equivalent
measurement, as follows:
Millimeters (mm) = Inches x 25.4
Centimeters (cm) = Inches x 2.54
Meters (M) = Inches x .0254
TRAHCHTGNELNOITCESTNEV
noitceSlanimoN )sehcni(htgneL 621426384T
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noitceSteN )sehcni(htgneL 2/1-42/1-012/1-222/1-432/1-64
tneVfothgieHsnoitceStneVforebmuN
sehcnitf
44121100034
0515.21010034
5.451578.21110035
5.061573.31020035
5.271573.41000505
77157.41100506
38152.51010506
6815.51000044
5.091578.51100045
5.691573.61010045
5.502521.71011507
70252.71000606
5.112526.71100607
5.712521.81010607
5.922521.91001607
5.232573.91000055
73257.91100056
5.142521.02000707
6425.02100708
25212010708
46222001708
67232000808
97252.32000066
5.
082573.32100809
5.382526.32100067
5.982521.42010067
5.103521.52001067
5.013578.52000909
5135.621009001
5.523521.72000077
0335.72100078
63382010078
54357.82000 01001
5.943521.92100 01011
27313000088
5.673573.13100089
5.973526.13000 11011
5.814578.43000099
32452.531000901
56457.8300000101
SV4.5CGV-1
Termination SV4.5FA OR
SV4.5FB Flashing
AND SV4.5SC
STORM COLLAR
*SV4.5VF
Firestop/Spacer
SV4.5L6/12/24/36/48
Vent Sections
40' Max
(12.2 M)
1" (26 mm)
Minimum
Clearance to
Combustibles
*When using Secure Flex,
use Firestop/Spacer
SF4.5VF
Effective Vent Length
Model Effective Length
SV4.5L6 4-1/2"
SV4.5L12 10-1/2"
SV4.5L24 22 -1/2"
SV4.5L36 34-1/2"
SV4.5L48 46-1/2"
Table 7
Figure 21
VERTICAL TERMINATION SYSTEMS (ROOF)
See Figure 21 and Figures 30-34 on Pages 19-20
and their associated Vertical Vent Tables which il-
lustrate the various vertical venting configurations
that are possible for use with these appliances.
Secure Vent® pipe applications are shown in
these Figures; Secure Flex® pipe may also be
used. A Vertical Vent Table summarizes each
system’s minimum and maximum vertical and
horizontal length values that can be used to
design and install the vent components in a
variety of applications.
Both these vertical vent systems terminate
through the roof. The minimum vent height
above the roof and/or adjacent walls is speci-
fied in ANSI Z223.1-(latest edition) (In Canada,
the current CAN/CGA-B149.1 installation code)
by major building codes. Always consult your
local codes for specific requirements. A general
guide to follow is the Gas Vent Rule (refer to
Figure 5 on Page 8).
Vertical (Straight) Installation
(Figure 21)
Determine the number of straight vent sec-
tions required. 4-1/2" (114 mm), 10-1/2" (267
mm), 22-1/2" (572 mm), 34-1/2" (876 mm)
and 46-1/2" (1181 mm) net section lengths
are available (see Tables on this page and
Pages 35 and 36 - Vent Sections). Plan the
vent lengths so that a joint does not occur at
the intersection of ceiling or roof joists. Refer
to the Vent Section Length Chart.
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
17
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
1” (26mm)
minimum
clearance to
combustibles
Support Straps
(Plumber’s tape)
8 feet (2.4m)
Maximum
Blocking
Figure 24
D. Install firestop/spacer at ceiling - When
using Secure Vent, use SV4.5VF firestop/spacer
at ceiling joists; when using Secure Flex, use
SF4.5VF firestop/spacer. If there is living space
above the ceiling level, the firestop/spacer must
be installed on the bottom side of the ceiling.
If attic space is above the ceiling, the firestop/
spacer must be installed on the top side of
the joist. Route the vent sections through the
framed opening and secure the firestop/spacer
with 8d nails or other appropriate fasteners at
each corner. Remember to maintain 1" (26
mm) clearance to combustibles, framing
members, and attic or ceiling insulation
when running vertical chimney sections.
Attic insulation shield (H3907) may be used
to obtain the required clearances indicated
here. See installation accessories table on
Pages 35 and 36. The gap between the vent
pipe and a vertical firestop can be sealed with
non-combustible caulking.
E. Support the vertical vent run sections -
NOTE: Proper venting support is very important.
The weight of the vent must not be supported
by the fireplace in any degree.
Support the vertical portion of the venting
system every 8 feet (2.4m) above the fireplace
vent outlet. One method of support is by utiliz-
ing field provided support straps (conventional
plumber's tape). Secure the plumber's tape to
the framing members with nails or screws. Loop
the tape around the vent, securing the ends of
the tape to the framing. If desired, sheet metal
screws #6 x 1/2" length may be used to secure the
support straps to the vent pipe. See Figure 24.
Vertical (Offset) Installation
Analyze the vent routing and determine the
quantities of vent sections and number of elbows
required. Refer to Vertical Vent Figures and
Tables on Pages 19 and 20 to select the type
of vertical installation desired. Vent sections
are available in net lengths of 4-1/2" (114 mm),
10-1/2" (267 mm), 22 -1/2" (572 mm), 34-1/2"
(876 mm) and 46-1/2" (1181 mm). Refer to the
Vent Section Length Chart on Page 16 for an
aid in selecting length combinations. Elbows are
available in 90° and 45° configurations. Refer
to Figure 25 on Page 18 for the SV4.5E45 and
SV4.5E90 elbow dimensional specifications.
Where required, a telescopic vent section
(SV4.5LA) may be used to provide the installer
with an option in installing in tight and confined
spaces or where the vent run made up of fixed
length pieces develops a joint in a undesirable
location, or will not build up to the required
length. The SV4.5LA Telescopic Vent Section
has an effective length of from 1-1/2" (38 mm)
to 7-1/2" (191 mm). The SV4.5LA is fitted with
a locking inclined channel end (identical to a
normal vent section component) and a plain end
with 3 pilot holes. Slip the plain end over the
locking channel end of a standard SV4.5 vent
component the required distance and secure
with three screws.
Maintain a minimum 1" (26 mm) clearance to
combustible materials for all vertical elements.
Clearances for all horizontal elements are 3"
(77 mm) on top, 1" (26 mm) on sides and 1"
(26 mm) on the bottom.
A. Frame ceiling opening - Use a plumb line
from the ceiling above the appliance to locate
center of the vertical run. Cut and/or frame an
opening, 10-1/2" x 10-1/2" (267mm x 267mm)
inside dimensions, about this center mark
(Figure 22).
To attach a vent component to the appliance
collar, align the dimpled end over the collar,
adjusting the radial alignment until the four
locking dimples are aligned with the inlet of
the four inclined channels on the collar (refer to
Figure 23). Push the vent component against
the collar until it fully engages, then twist the
component clockwise, running the dimples
down and along the incline channels until they
seat at the end of the channels. The unitized
design of the Secure Vent® components will
engage and seal both the inner and outer pipe
without the need for sealant or screws. If desired
a #6 x 1/2" screw may be used at the joint, but
it is not required as the pipe will securely lock
when twisted.
NOTE: An elbow may also be attached to the
appliance collar. Attach in the same manner as
you would a vent section.
C. Attach vent components to each other - Other
vent sections may be added to the previously
installed section in accordance with the require-
ments of the vertical vent figures and tables.
To add another vent component to a length of
vent run, align the dimpled end over the inclined
channel end of the previously installed section,
adjusting the radial alignment until the four
locking dimples are aligned with the inlets of
the four incline channels of the previous section.
Push the vent component against the previous
section until it fully engages, then twist the
component clockwise running the dimples down
and along the incline channels until they seat at
the end of the channels. This seating position
is indicated by the alignment of the arrow and
dimple as shown in Figure 23.
B. Attach vent components to appliance - Se-
cure Vent SV4.5 Direct-Vent system compo-
nents are unitized concentric pipe components
featuring positive twist lock connections (see
Figure 23).
All of the appliances covered in this document
are fitted with collars having locking inclined
channels. The dimpled end of the vent com-
ponents fit over the appliance collar to create
the positive twist lock connection.
Figure 23
Align the dimple (four places) of
the upper vent section with the
opening of the locking incline
channel on the lower vent section
or appliance collar. Twist vent
component clockwise to engage
and seal until arrow and dimple
align.
Dimple
Locking Incline
Channel
Connected Vent
Sections Arrow
Arrow
Appliance Collar or
Vent Section
Figure 22
Min. 10-1/2"
(267 mm)
Min. 10-1/2"
(267 mm)
Roof
Framing
Ceiling
Framing
Plumb
Bob
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
18
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 26
Figure 27
Figure 29
Figure 28
If the vent system extends more than 5' (1.5
m) above the roof flashing, stabilizers may be
necessary. Additional screws may be used at
section joints for added stability. Guide wires
may be attached to the joint for additional sup-
port on multiple joint configurations.
G. Continue installation of horizontal/inclined
sections - Continue with the installation of the
straight vent sections in horizontal/inclined run
as described in Step C. Install support straps
every 5' (1.52 m) along horizontal/inclined vent
runs using conventional plumber’s tape. It is
very important that the horizontal/inclined run
be maintained in a straight (no dips), slightly
elevated plane. The recommended incline is
approximately 1/4" per foot (20 mm per me-
ter) horizontal, in a direction away from the
fireplace. Use a carpenter’s level to measure
from a constant surface and adjust the support
straps as necessary.
It is important to maintain the required clear-
ances to combustibles: 1" (26 mm) at all sides
for all vertical runs; and 3" (77 mm) at the
top, 1" (26 mm) at sides, and 1" (26 mm) at
the bottom for all horizontal/inclined runs.
H. Frame roof opening - Identify location for
vent at the roof. Cut and/or frame opening per
Roof Framing Chart and Figure 26.
F. Change vent direction to horizontal/inclined
run - At transition from or to a horizontal/in-
clined run, install the SV4.5E45 and SV4.5E90
elbows in the same manner as the straight vent
sections. The elbows feature a twist section to
allow them to be routed about the center axis
of their initial collar section to align with the
required direction of the next vent run element.
Twist elbow sections in a clockwise direction
only so as to avoid the possibility of unlocking
any of the previously connected vent sections.
See Figure 25.
Figure 25
SV4.5E90
(90
°
Elbow)
8-1/8"
(206 mm)
Swivel Joint
(360
°
swivel)
4-13/16"
(122 mm)
SV4.5E45
(45
°
Elbow)
Swivel Joint
(360
°
swivel)
C
D
Storm
Collar
K. Install the vertical termination - The final
step involves installation of the SV4.5CGV-1
Vertical Termination. Extend the vent sections
to the height as shown in the "Vertical vent ter-
mination section" on Page 8. The SV4.5CGV-1
Vertical Termination (Figure 29) installs in the
exact same fashion as any other Secure Vent®
section. Align the termination over the end of
the previously installed section, adjusting the
radial alignment until the four locking dimples
of the termination are aligned with the inlets of
the four incline channels of the last vent section.
Push the termination down until it fully engages,
then twist the termination clockwise running the
dimples down and along the incline channels
until they seat at the end of the channels.
I. Install the roof flashing - Extend the vent
sections through the roof structure. Install the
roof flashing over the vent section and posi-
tion such that the vent column rises vertically
(use carpenters level) (Figure 27). Nail along
perimeter to secure flashing or adjust roofing to
overlap the flashing edges at top and sides only
and trim where necessary. Seal the top and both
sides of the flashing with waterproof caulking.
J. Install the storm collar - Install the storm
collar, supplied with the flashing, over the vent/
flashing joint. See Figure 28. Loosen the storm
collar screw. Slide collar down until it meets
the top of the flashing. Tighten the adjusting
screw. Apply non-combustible caulking or
mastic around the circumference of the joint
to provide a water tight seal.
Pitch C D
0/12 10-1/2"
(267 mm)
10-1/2"
(267 mm)
6/12 10-1/2"
(267 mm)
12"
(305 mm)
12/12 10-1/2"
(267 mm)
17-3/4"
(451 mm)
Framing Dimensions for Roof
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
19
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 31 - Rear Vent - ONE 90 DEGREE ELBOW
Figure 30 - Top Vent - STRAIGHT
Figure 32 - Top Vent - TWO 90 DEGREE ELBOWS
VERTICAL VENT FIGURES/TABLES
NOTE: It is very important that the horizontal/
inclined run be maintained in a straight (no
dips), slightly elevated plane. The recommended
incline is approximately 1/4" per foot (20 mm
per meter) horizontal, in a direction away from
the fireplace. The rise per foot run ratios that
are smaller are acceptable all the way down to
at or near level.
NOTE: SV4.5VF (Secure Vent), SF4.5VF (Secure
Flex®) firestop/spacer must be used anytime
vent pipe passes through a combustible floor
or ceiling. SV4.5HF (Secure Vent), SF4.5HF (Se-
cure Flex)firestop/spacer must be used anytime
vent pipe passes through a combustible wall.
NOTE: Two 45 degree elbows may be used in
place of one 90 degree elbow. The same rise
to run ratios, as shown in the venting figures
for 90 elbows, must be followed if 45 degree
elbows are used.
NOTE: An elbow is acceptable as 1 foot of
vertical rise, except where an elbow is the
only vertical component in the system. (See
Figure 39 on Page 23).
NOTE: Secure Vent® (rigid vent pipe) is shown
in the figures; Secure Flex® (flexible vent pipe)
may also be used.
A Vent Restrictor, as shown in the figures on
Page 14, must be used in this application.
Example: If 8 feet of (H) horizontal vent
run is needed, then 4 feet minimum (V)
vertical vent will be required.
This table shows a 1 (V) to 2 (H) ratio.
For every 1 foot of (V) vertical, you are
allowed 2 feet of (H) horizontal run, up
to a maximum horizontal run of 8 feet.
TABLE A
H Maximum V Minimum
feet feet
2(0.610) 1(0.305)
4(1.219) 2(0.610)
6(1.829) 3(0.914)
8(2.438) 4(1.219)
V + H = 40 feet (12.2 meters) Max.
H = 8 feet (2.4 meters) Max.
Ratio V to H ratio is 1:2
(meters) (meters)
Example: If 20 feet of (H) horizontal vent
run is needed, then 4 feet minimum of
(V) vertical vent will be required.
This table shows a 1 (V) to 5 (H) ratio.
For every 1 foot of (V) vertical, you are
allowed 5 feet of (H) horizontal run, up
to a maximum horizontal run of 20 feet.
An elbow is acceptable as 1 foot of
vertical rise except where an elbow is the
only vertical component in the system.
See Figure 39.
NOTE: Install the U-shaped vent restrictor in
any vent run with more than 8 ft. of vertical
rise. See Page 14.
TABLE B
H Maximum V Minimum
feet (meters) feet
5(1.524) Elbow Only
5(1.524) 1(0.305)
10 (3.048) 2(0.610)
15 (4.572) 3(0.914)
20 (6.096) 4(1.219)
V + V1+ H = 40 feet (12.2 m) Max.
H = 20 feet (6.096 meters) Max.
(meters)
WARNING
Under no circumstances, may separate sections of concentric flexible vent
pipe be joined together.
NOTE: Install the U-shaped vent restrictor in any vent
run with more than 8 ft. of vertical rise. See Page 14.
Max. 40 ft
(12.2 m)
*When using
Secure Flex, use
Ceiling Firestop/
Spacer SF4.5VF.
Ceiling
Firestop/
Spacer
SV4.5VF*
V
H
Ceiling
Firestop/Spacer
SV4.5VF*
*When using Secure Flex, use
Ceiling Firestop/Spacer
SF4.5VF.
H
V
V1
Ceiling
Firestop/Spacer
SV4.5VF*
Wall
Firestop/Spacer
SV4.5HF**
*When using Secure Flex, use
Ceiling Firestop/Spacer SF4.5VF.
**When using Secure Flex, use
Wall Firestop/Spacer SF4.5HF.
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
20
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 34 - Top Vent - THREE ELBOWS
TABLE C
H+H1Maximum HMaximum V Minimum
feet feet feet
5(1.524) 2(0.610) 1(0.305)
10 (3.048) 4(1.219) 2(0.610)
15 (4.572) 6(1.829) 3(0.914)
20 (6.096) 8(2.438) 4(1.219)
V + V1+ H + H1 = 40 feet (12.2 m) Max
H = 8 feet (2.438 meters) Max.
H + H1= 20 feet (6.096 meters) Max.
(meters) (meters)
(meters)
Example: If 20 feet of (H) horizontal vent run is needed,
then 4 feet minimum of (V) vertical vent will be required.
This table shows a 1 (V) to 5 (H) ratio. For every 1 foot of
(V) vertical, you are allowed 5 feet of (H) horizontal run, up
to a maximum horizontal run of 20 feet.
NOTE: Install the U-shaped vent restrictor in any vent run with
more than 8 ft. of vertical rise. See Page 14.
TABLE D
H +H1Maximum V Minimum
feet feet
5(1.524) Elbow Only
5(1.524) 1(0.305)
10 (3.048) 2(0.610)
15 (4.572) 3(0.914)
20 (6.096) 4(1.219)
H + H1 = 20 feet (6.096 m) Max.
V + V1 + H + H1 = 40 ft. (12.192 m) Max.
(meters) (meters)
Example: If 20 feet of (H) horizontal vent run is needed, then 4 feet
minimum of (V) vertical vent will be required.
This table shows a 1 (V) to 5 (H) ratio. For every 1 foot of (V) verti-
cal, you are allowed 5 feet of (H) horizontal run, up to a maximum
horizontal run of 20 feet.
An elbow is acceptable as 1 foot of vertical rise except where an
elbow is the only vertical component in the system. See Figure 39.
NOTE: Install the U-shaped vent restrictor in any vent run with more than
8 ft. of vertical rise. See Page 14.
VERTICAL VENT FIGURES/TABLES
(continued)
Figure 33 - Rear Vent - THREE ELBOWS
H1
V
V1
H
Ceiling
Firestop/Spacer
SV4.5VF*
Wall
Firestop/Spacer
SV4.5HF**
*When using Secure Flex, use
Ceiling Firestop/Spacer SF4.5VF.
**When using Secure Flex, use
Wall Firestop/Spacer SF4.5HF.
Ceiling
Firestop/Spacer
SV4.5VF*
V
H1
H
V1
Ceiling
Firestop/Spacer
SV4.5VF* Wall
Firestop/Spacer
SV4.5HF**
*When using Secure Flex, use
Ceiling Firestop/Spacer SF4.5VF.
**When using Secure Flex, use
Wall Firestop/Spacer SF4.5HF.
Installation and Operation Instructions
900357-01, 09/2016
Innovative Hearth Products
AltairTM Direct-Vent Gas Fireplace
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