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 indicated on the rating
plate. This appliance is not convertible for use with other
gases, unless a certified kit is used.
In the Commonwealth of Massachusetts:
• Installation must be performed by a licensed plumber or
gas fitter.
See Table of Contents for location of additional
Commonwealth of Massachusetts requirements.
WARNING: IF THE INFORMATION IN THIS MANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
FOR YOUR SAFETY: Do not store or use gasoline
or other flammable vapors or liquids in the vicinity of this or any other appliance.
FOR YOUR SAFETY: What to do if you smell gas:
VENTED GAS FIREPLACE HEATERS - DIRECT VENT MODELS
P/N 850,014M REV. R 06/2008
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE
LES INSTRUCTIONS DONNÉ DANS CETTE NOTICE POUR
RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE OU
POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
• DO NOT light any appliance.
• DO NOT touch any electrical switches.
• DO NOT use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow your gas suppliers
instructions.
• If your gas supplier cannot be reached, call the
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
US
A French manual is available upon request. Order Form Number
850,014CF.
Ce manuel d’installation est disponible en francais, simplement
en faire la demande. Numéro de la pièce 850,014CF.
OTL Report No. 116-F-13-4
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
POUR VOTRE SÉCURITÉ: Ne pas entreposer ni utiliser
d'essence ni d'autre vapeurs ou liquides inflammables
dans le voisinage de cet appareil ou de tout autre
appareil.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez une
odeur de gaz:
• Ne pas tenter d'allumer d'appareil.
• Ne touchez à aucun interrupteur. Ne pas vous servir
des téléphones se trouvant dans le batiment où
vous vous trouvez.
• Evacuez la piéce, le bâtiment ou la zone.
• 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 dos incendies.
L'installation et service doit être exécuté par un qualifié
installeur, agence de service ou le fournisseur de gaz.
This installation manual will help you obtain a
safe, efficient, dependable installation for your
appliance and vent system.
Please read and understand these
instructions before beginning your
installation.
PACKAGING
The assembled vented gas fireplace heater is
packaged with:
1 - one log set located in firebox area.
2 - one envelope containing the literature
package which consists of the homeowner's
manual, installation instructions, log set supplement and warranty; envelope is located in the
control area.
3 - one vent restrictor to be applied as shown on
page 10; restrictor is taped to the envelope.
4 - one hood located behind the top panel.
5 - one bag of decorative volcanic stone located
in the control area.
6 - one bag of glowing embers located in the
control area.
7 - one bag of vermiculite located in control area.
INTRODUCTION
These fireplaces are designed, tested and listed
for operation and installation with, and only with,
Secure Vent™ Direct Vent System Components,
Secure Flex™ Flexible Vent Components manu-
factured by Security Chimneys International and
Z-Flex™ Model GA Venting Systems, listed to
UL1777 and ULCS635 manufactured by Flexmaster Canada Limited. These approved vent
system components are labeled for identification. DO NOT use any other manufacturer's vent
components with these appliances.
Millivolt appliances are designed to operate on
natural or propane gas. A millivolt gas control
valve with piezo ignition system provides safe,
efficient operation. External electrical power is
required to operate the optional blower if installed in these units.
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 appliances comply with National Safety
Standards and are tested and listed by OmniTest Laboratories (Report No. 116-F-13-4) to
ANSI Z21.88 (in Canada, CSA-2.33), and CAN/
CGA-2.17-M91 in both USA and Canada, as
vented gas fireplace heaters.
Electrical wiring must comply with the National
Electrical Code ANSI/ NFPA 70 - (latest edition).
(In Canada, the current CSA C22-1 Canadian
Electrical Code.)
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.
GENERAL INFORMATION
Note: Installation and repair should be per-
formed by a qualified service person. The appliance should be inspected annually by a qualified professional service technician. More frequent inspections and cleanings may be required due to excessive lint from carpeting,
bedding material, etc. It is imperative that the
control compartment, burners and circulating
air passage ways of the appliance be kept clean.
S'assurer que le brùleur et le compartiment des
commandes sont propres. Voir les instructions d'installation et d'utilisation qui
accompagnent l'appareil.
Provide adequate clearances around air openings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
These appliances are designed to operate on
natural or propane gas only.
TYPICAL INSTALLATION
Both millivolt and electronic versions of
these appliances are listed by Omni-Test
Laboratories for installation in bedrooms
and mobile homes.
Installation must conform to local codes. In the
absence of local codes, installation must comply with the current National Fuel Gas Code,
ANSI Z223.1. (In Canada, the current CAN-1
2
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
B149 installation code.)
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 1
Millivolt Models -
Millivolt models come standard with the manually-modulated gas valve; flame appearance and
heat output can be controlled at the gas valve.
Input of millivolt models is shown in the
following table:
Maximum manifold pressure is 3.5 in. w.c.
(0.87 kPa) for natural gas and 10 in. w.c.
(2.49 kPa) for LP/Propane gas.
Installations at Altitudes of 0 to 4500 ft.Units are tested and approved for elevations
of 0 to 4500 feet (0 to 1372 meters).
Installations at Altitudes above 4500 ft.For elevations above 4500 feet (1372
meters), install the unit according to the
regulations of the local authorities having
jurisdiction and, in the USA, the latest edition
of the National Fuel Gas Code (ANSI Z223.1)
or, in Canada, the latest edition of the
CAN1-B149.1 and .2 codes.
Table 1
shows the units' gas orifice size for
the elevations indicated.
The millivolt appliances are manually controlled
and feature a spark ignitor (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.
Do not use these appliances if any part has been
under water. Immediately call a qualified,
professional service technician to inspect the
appliance and to replace any parts of the control system and any gas control which have
been under water.
Ne pas se servir de cet appareil s'il a été plongé
dans l'eau, complètement ou en partie. Appeler
un technicien qualifié pour inspecter l'appareil et
remplacer toute partie du système de contrôle et
toute commande qui ont été plongés dans l'eau.
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
indicated on the rating plate. This appliance is not convertible for use with other
gases, unless a certified kit is used.
Cet appareil peut être installé dans un maison
préfabriquée (É.-U. seulement) ou mobile déjà
installée à demeure si les réglements locaux le
permettent.
Cet appareil doit être utilisé uniquement avec
les types de gaz indiqués sur la plaque
signalétique. Ne pas l'utiliser avec d'autres gaz
sauf si un kit de conversion certifié est installé.
Test gage connections are provided on the
front of the millivolt gas control valve (identified IN for the inlet and OUT for the manifold
side). A 1/8" NPT test gage connection is
provided at the inlet and outlet side of
the electronic gas control valve.
Minimum inlet gas pressure to these appliances
is 5.0 inches water column (1.24 kPa) for natural
gas and 11 inches water column (2.74 kPa) for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure to these
appliances is 10.5 inches water column (2.61
kPa) for natural gas and 13.0 inches water
column (3.23 kPa) for propane.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
These appliances must be isolated from the gas
supply piping system (by closing their individual
manual shut-off 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).
These appliances and their individual shut-off valves
must be disconnected from the gas supply piping
system during any pressure testing of that system
at pressures in excess of 1/2 psig (3.5 kPa).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
These heater rated appliances are intended
for use as supplemental heaters only.
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to
the flu with headaches, dizziness and/or
nausea. If you have these signs, obtain fresh
air immediately. Turn off the gas supply to
the appliance and have it serviced by a
qualified professional, as it may not be operating correctly.
WARNING: FAILURE TO COMPLY WITH
THE INSTALLATION AND OPERATING INSTRUCTIONS PROVIDED IN THIS DOCUMENT WILL RESULT IN AN IMPROPERLY INSTALLED AND OPERATING APPLIANCE, VOIDING ITS WARRANTY.
ANY CHANGE TO THIS APPLIANCE AND/
OR ITS OPERATING CONTROLS IS DANGEROUS. IMPROPER INSTALLATION
OR USE OF THIS APPLIANCE CAN CAUSE
SERIOUS INJURY OR DEATH FROM FIRE,
BURNS, EXPLOSION OR CARBON MONOXIDE POISONING.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZARDS
OF HIGH SURFACE TEMPERATURES. USE
CAUTION AROUND THE APPLIANCE TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CAREFULLY SUPERVISED WHEN THEY ARE IN
THE SAME ROOM AS THE APPLIANCE.
WARNING: DO NOT PLACE CLOTHING
OR OTHER FLAMMABLE MATERIALS
ON OR NEAR THIS APPLIANCE.
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LES MEUBLES, L'ESSENCE OU AUTRES
LIQUIDES À VAPEUR INFLAMMABLES
À COTE DE L'APPAREIL.
3
REAR VENT
APPLICATION
TOP VENT
APPLICATION
APPLICATION
TOP VENT
INSTALLATION
RECESSED
REAR VENT
APPLICATION
TOP VENT
APPLICATION
TOP VENT
APPLICATION
Figure 2
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.
Consideration should be given to traffic ways,
furniture, draperies, etc., due to elevated surface temperatures (
Figure 2
). 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. Utility shelves
like these are commonly used for locating television sets and decorative plants.
To provide for the lowest possible shelf surface
use the alternate rear vent outlet with attached
venting routed in a way to minimize obstructions to the use of the space above the appliance. Do not insulate the space between the
appliance and the area above it. See
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 the table in
Figure 3
.
The appliance should be mounted on a fully
supported 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, etc., a metal
or wood barrier covering the entire bottom
surface must be used.
APPLIANCE AND VENT CLEARANCES
The appliance is approved with zero clearance
to combustible materials on all sides (as detailed in
Table 2 )
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
4
, with the following exception:
TOP VENT
APPLICATION
TOP VENT
APPLICATION
Figure 3
Figure 2
.
.
VERTICAL VENT
(Rear Vent
Application)
HORIZONTAL VENT
(Rear Vent Application
without a chase)
*Note: 3 in. (75 mm) above any horizontal/
inclined vent component.
**Note: See page 5, step 1 for clearance
requirements to the nailing flange located
at each side of the unit and any screw
heads adjacent to it.
)mm6261(.ni46
SECNARAELCECIVRES
VERTICAL VENT
(Top Vent
Application)
VENT TERMINATION CLEARANCES
These instructions should be used as a guideline and do not supersede local codes in any
way. Install vent 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 and B149.2 in Canada.
Vertical Vent Termination Clearances
Terminate single vent caps relative to building
components according to
TERMINATION HEIGHTS FOR VENTS ABOVE
Horizontal Overhang
2 FT MIN.
Termination
Storm Collar
Flashing
Concentric
Vent Pipe
FLAT OR SLOPED ROOFS
Vent
H*
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
Figure 4
2 FT
MIN.
Lowest
Discharge
Opening
1 inch (25.4 mm) Minimum
Clearance to Combustibles
Terminate multiple vent terminations according to the installation codes listed on this
page.
Horizontal Vent Termination Clearances
Combustible Projection
2-1/2 inches or less in length
greater than inches in length
Ventilated
(457 mm)
Figure 5 -
Combustible Projection
2-1/2
Soffit
Unventilated
18"
(305 mm)
Soffit
3"
(76 mm)
12"
Termination Kit
Side Elevation View
Horizontal Vent Termination Clearances
The horizontal vent termination must have a
minimum of 3" (76 mm) clearance to any overhead combustible projection of 2-1/2" (64 mm)
or less. See
ing 2-1/2" (64 mm), see
Figure 5.
For projections exceed-
Figure 5
. 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. For additional vent location
restrictions refer to
Figure 8 on page 7
.
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation follows,
however, each installation is unique resulting in
variations to those described.
See the page numbers references in the following steps for detailed procedures.
Step 1. (page 6)Construct the appliance
framing. Position the appliance within the
framing and secure with nailing brackets.
Step 2. (page 6) Route gas supply line to
appliance location.
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 noncombustible exterior
sidewalls only, if the
SV4.5HT-2 termination
is used.
Termination Kit
Step 3. (page 9) Install the vent system and
exterior termination.
Step 4. (page 22) Field Wiring
a. Millivolt Appliances – Install the operating
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 5. (page 22) Install blower kit (optional
equipment).
Step 6. (page 23) Make connection to gas
supply.
Step 7. (page 24) Install the logs, decora-
tive volcanic stone and glowing embers.
Step 8. (page 24)Checkout appliance op-
eration.
Step 9. (page 24) Install glass door frame
assembly.
Step 10. (page 25) Adjust burner to ensure
proper flame appearance.
Step 11. (page 25) Install the hoods.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5
DETAILED INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired. Remove the shipping carton, exposing the front
glass door. Remove the top panel. Remove
the cardboard from underneath the pressure
relief plates. Press in simultaneously the left
and right side of the bottom hinged panel, to
release it. Lower the bottom hinged panel.
Open the two latches (located under the firebox floor) securing the glass door. Remove
the door by tilting it outward at the bottom and
lifting it up. Set the door aside protecting it
from inadvertent damage.
See Figure 53on
page 24.
Step 1. FRAMING
Frame these appliances as illustrated in
9 on page 8,
installed in a corner. See
unless the appliance is to be
Figure 10 on page 8
for corner framing installations. All framing
details must allow for a minimum clearance to
combustible framing members as shown in
Table 2
.
If the appliance is to be elevated above floor level,
a solid continuous platform must be constructed.
Figure
The fireplace should be secured to the side framing members using the unit's nailing flanges - one
top and bottom on each side of the fireplace front.
Figure 6.
See
Framing
Note: The nailing flanges, combustible members
and screw heads located 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
direct contact with the nailing flanges and may
in
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 of this manual.
Use 8d nails or their equivalent.
Side
Left Side Front Corner of Fireplace Shown
(Right Side Requirements the Same)
Unit Being Secured By Its Nailing Flanges
To The Framing
Unit Nailing Flange
(No clearance to
combustible
framing is required)
Figure 6
Step 2. ROUTING GAS LINE
Route a 1/2" (13 mm) gas line along the inside
of the right side framing as shown in
Figure 7
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 inch shutoff valve. (See
step 6 on page 23).
Right Side
Front Corner of
Fireplace Framing
3"
(76 mm)
6-1/2"
(152 mm)
Figure 7
.
Headers may be in direct contact with the
appliance top spacers 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.
Step 3. INSTALL THE VENT SYSTEM
General Information
These instructions should be used as a guideline and do not supersede local codes in any
way. Install vent 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 and B149.2 in Canada.
These fireplaces are designed, tested and
listed for operation and installation with,
and only with, Secure Vent™ Direct Vent
System Components, Secure Flex™ Flexible Vent Components manufactured by
Security Chimneys International and ZFLEX™ Model GA Venting Systems listed
to UL1777 and ULCS635 manufactured by
Flexmaster Canada Limited.
These approved vent system components
are labeled for identification. DO NOT use
any other manufacturer's vent components
with these appliances. These fireplaces
must be vented directly to the outside.
Massachusetts And New York City, NY
Requirements
These appliances are approved for installation
in the following USA locations listed in the
following:
Massachusetts:
These fireplaces are approved for installation
in the US state of Massachusetts if the following additional requirements are met-
• Installation and repair must be done by a
plumber or gas fitter licensed in the Commonwealth 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 Thandle type valve.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
9
Massachusetts Horizontal Vent Requirements
In the Commonwealth of Massachusetts, horizontal 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.
New York City, NY:
These fireplaces are approved for installation
in New York City in the US state of New York.
The vent system may not service multiple
appliances, and must never be connected to a
flue serving a solid fuel burning appliance. The
vent pipe is tested to be run inside an enclosing 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.
Preparing the Appliance Vent Collar on
MPD-3530/4035/4540 Series (Combined
Top and Rear Vent) Models
Each of the unit's two vent collars are sealed
with a cover plate and a seal plate and gasket.
The cover, and seal plate and gasket must be
removed from the vent collar being used.
Refer to
Figure 13
Figure 12
for top vent usage and
for rear, and the following steps to
prepare the appropriate collar for use.
From the vent collar being used, remove the four
screws securing the vent seal plate and gasket.
Remove and discard the seal plate and gasket.
When the top vent collar is being used, from
inside the firebox, loosen the two screws in the
keyhole slots of the cover plate and remove the
remaining two cover plate securing screws.
Remove and discard the cover plate. Reinstall
and securely tighten all four screws.
When the rear vent collar is being used, from
inside the firebox, remove the two screws
securing the lintel to the rear wall of the firebox, then remove the lintel. Remove the four
cover plate securing screws. Remove and
discard the cover plate.
Reinstall and securely tighten all four cover
plate screws. Re-secure the lintel to the rear
wall of the firebox.
WARNING: FAILURE TO REINSTALL AND
SECURELY TIGHTEN COVER PLATE
SCREWS COULD RESULT IN LEAKAGE OF
FLUE PRODUCTS INTO THE LIVING SPACE.
VENT COVER PLATE AND VENT SEAL PLATE
MUST REMAIN SECURELY INSTALLED ON
UNUSED VENT COLLAR. FAILURE TO DO
SO COULD RESULT IN LEAKAGE OF FLUE
PRODUCTS INTO LIVING SPACE.
ON MPD-3530/4035/4540 SERIES MODELS
(COMBINED TOP AND REAR VENT UNITS)
TOP VENT SEAL & COVER PLATE REMOVAL
WHEN USING THE TOP VENT
(OUTSIDE UNIT)
CABINET TOP
FIREBOX TOP
VENT
COVER PLATE
(INSIDE UNIT)
CROSS SECTION
GASKET
TOP VENT
VENT SEAL PLATE
SECURING
SCREWS
COVER PLATE
SECURING SCREWS
Figure 12
ON MPD-3530/4035/4540 SERIES MODELS
(COMBINED TOP AND REAR VENT UNITS)
REAR VENT SEAL & COVER PLATE REMOVAL
WHEN USING THE REAR VENT
COVER PLATE
SECURING SCREWS
LINTEL
SECURING
SCREWS
LINTEL
(INSIDE UNIT)
REAR VENT
CROSS SECTION
VENT SEAL PLATE
GASKET
SECURING
SCREWS
CABINET BACK
(OUTSIDE UNIT)
Figure 13
Installation of Vent Restrictor
A vent restrictor may be needed with this appliance, install vent restrictor (provided) in the
appliance top flue outlet as shown in
(MPDT-3328, MPD-3530, MPD-4035 and MPD-
4540)
or rear flue outlet as shown in
(MPD-3530, MPD-4035 and MPD-4540)
held in place by friction, only.
Figure 14
Figure 15
. It is
VENT RESTRICTOR INSTALLATION
(TOP VENT)
A vent restrictor may be needed when
vertically terminating the vent system above
the roof (when using the appliance top vent),
install vent restrictor in the top vent of the
fireplace outlet on MPD-3530/4035/4540
and MPDT-3328 series models.
If needed, install the restrictor orientated as
shown, either from inside or outside the unit,
in the inner fireplace collar.
RESTRICTOR
INNER
FIREPLACE
COLLAR
APPLIANCE TOP
VENT OUTLET
Figure 14
VENT RESTRICTOR INSTALLATION
A vent restrictor may be needed when
horzontally terminating the vent system from
the rear of the appliance (when using the
appliance rear vent), install vent restrictor in
the rear vent of the fireplace outlet on
MPD-3530/4035/4540 series models, in any
installation that has a vertical vent run in
excess of three feet (0.914 meters).
If needed, install the restrictor orientated as
shown, either from inside or outside the unit,
INNER FIREPLACE
COLLAR
(REAR VENT)
in the inner fireplace collar.
APPLIANCE REAR
VENT OUTLET
RESTRICTOR
Figure 15
Select Venting System - Horizontal or Vertical
With the appliance secured in framing, determine vent routing and identify the exterior
termination 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 is shown in
the two tables on page 27 and the two tables
on page 28.
10
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
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