Lennox Hearth Indoor Fireplace 2 EN53 VDLPM User Manual

INSTALLATION

INSTRUCTIONS

DIRECT VENT

MERIT^™PLUS SERIES

VENTED GAS FIREPLACE HEATERS - DIRECT VENT MODELS

P/N 850,043M REV. F 09/2008

This appliance may be installed in an aftermarket perma-

nently 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.

MODELS

Millivolt Models

Electronic Models

MPLDV-30NM

MPLDV-30PM

MPLDV-35NM-2

MPLDV-35PM-2

MPLDV-40NM

MPLDV-40PM

MPLDV-45NM

MPLDV-45PM

MPLDV-30NE

MPLDV-35NE-2

MPLDV-40NE

MPLDV-45NE

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

ISNOTFOLLOWEDEXACTLY,AFIREOREXPLOSION

MAY RESULT CAUSING PROPERTY DAMAGE, PER-

SONAL INJURY OR LOSS OF LIFE.

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for future reference.

AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE

LESINSTRUCTIONSDONNÉDANSCETTENOTICEPOUR

RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE OU

POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE

BLESSURE OU LA MORT.

FOR YOUR SAFETY: Do not store or use gasoline

or other flammable vapors or liquids in the vicin-

ity of this or any other appliance.

FOR YOUR SAFETY: What to do if you smell gas:

POURVOTRESÉCURITÉ: Nepasentreposerni utiliser

d'essenceni d'autrevapeursouliquidesinflammables

dans le voisinage de cet appareil ou de tout autre

appareil.

• 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.

POURVOTRESÉCURITÉ: Quefairesi voussentezune

odeur de gaz:

• Ifyourgassuppliercannotbereached, call the

fire department.

• Ne pas tenter d'allumer d'appareil.

• Netouchezàaucuninterrupteur. Nepasvousservir

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.

Installation and service must be performed by a

qualified installer, service agency or the gas

supplier.

Portland

OTL Report No. 116-F-47-5

• Si vous ne pouvez rejoindre le fournisseur de gaz,

appelez le service dos incendies.

A French manual is available upon request. Order Form Number

850,043CF.

L'installationetservicedoitêtreexécutéparunqualifié

installeur, agencedeserviceoulefournisseurdegaz.

Ce manuel d’installation est disponible en francais, simplement

en faire la demande. Numéro de la pièce 850,043CF._{NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.}

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Provide adequate clearances around air open-

ings and adequate accessibility clearance for

service and proper operation. Never obstruct

the front openings of the appliance.

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 con-

version certifié est installé.

Installations at Altitudes of 0 to 4500 ft.-

Unitsaretestedandapprovedforelevations

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

jurisdictionand, intheUSA, thelatestedition

oftheNational Fuel GasCode(ANSIZ223.1)

or, in Canada, the latest edition of the

CAN1-B149.1 and .2 codes.

Theseappliancesaredesignedtooperateon

natural or propane gas only.

Millivolt And Electronic Models -

Millivolt and Electronic models come standard

with the manually-modulated gas valve; flame

appearanceandheatoutputcanbecontrolledat

the gas valve.

Test gage 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). A 1/8" NPT test gage connec-

tion is provided at the inlet and outlet side of

the electronic gas control valve.

Table1 showstheunits' gasorificesizefor

the elevations indicated.

Input of millivolt and electronic models is

shown in the following table:

The millivolt appliances are manually controlled

andfeatureasparkignitor(piezo)thatallowsthe

appliance's pilot gas to be lit without the use of

matches or batteries. This system provides

continuedserviceintheeventofapoweroutage.

Minimum inlet gas pressure to these appli-

ances is 5.0 inches water column (1.24 kPa)

for natural gas and 11 inches water column

(2.74kPa)forpropaneforthepurposeofinput

adjustment.

Millivolt And Electronic Models with

Manually-Modulated Gas Valve

Natural Gas

Propane Gas

Input

Model No.

MPLDV30

MPLDV35

MPLDV40

MPLDV45

rate

(BTU/H)

Model No.

MPLDV30

MPLDV35

MPLDV40

MPLDV45

rate

(BTU/H)

Elevation

Feet

(meters)

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.

Orifice size

Model

13,000

10,000

11,500

9,000

No.

Nat.

Prop.

#61

(0.039")

19,000

15,000

18,000

14,000

MPLDV30 0.070"

#45

MPLDV35

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 sys-

tem at test pressures equal to or less than 1/2

psig (3.5 kPa).

0.048"

(0.082")

0-4500

25,000

18,500

21,500

16,500

(0-1372)

#41

#54

MPLDV40

(0.096") (0.055")

#40 #53

(0.098") (0.0595")

26,000

25,000

MPLDV45

20,000

19,000

Table 1

These appliances and their individual shut-off

valves must be disconnected from the gas

supply piping system during any pressure

testingofthatsystematpressuresinexcessof

1/2 psig (3.5 kPa).

All Models -

Donotusetheseappliancesifanyparthasbeen

under water. Immediately call a qualified, pro-

fessional service technician to inspect the ap-

pliance and to replace any parts of the control

system and any gas control which have been

under water.

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.

Theseappliancesmustnotbeconnectedtoa

chimney or flue serving a separate solid fuel

burning appliance.

Efficiencies%

Natural Gas

Steady

Propane

Ne pas se servir de cet appareil s'il a été plongé

dans l'eau, complètement ou en partie. Appeler

untechnicienqualifiépourinspecterl'appareilet

remplacertoutepartiedusystèmedecontrôleet

toute commande qui ont étéplongés dans l'eau.

Models

Steady

State

AFUE P4

AFUE

These heater rated appliances are intended

for use as supplemental heaters only. Using

these appliances as a primary heat source

may void the manufacturers warranty.

State

MPLDV30 58

MPLDV35 60

MPLDV40 58

MPLDV45 58

This appliance may be installed in an af-

termarket permanently located, manufac-

tured 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 ap-

pliance is not convertible for use with other

gases, unless a certified kit is used.

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 op-

erating correctly.

Note: Powerventingofdirect ventfireplaces

may result in the reduction of efficiencies by

as much as ten percent. Consider this in

making any venting and heating decisions in

any installation application.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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WARNING: FAILURE TO COMPLY WITH

THE INSTALLATION AND OPERATING

INSTRUCTIONS PROVIDED IN THIS

DOCUMENTWILLRESULTINANIMPROP-

ERLY INSTALLED AND OPERATING

APPLIANCE, VOIDING ITS WARRANTY.

ANY CHANGE TO THIS APPLIANCE AND/

OR ITS OPERATING CONTROLS IS DAN-

GEROUS. IMPROPERINSTALLATIONOR

USE OF THIS APPLIANCE CAN CAUSE

SERIOUSINJURYORDEATHFROMFIRE,

BURNS, EXPLOSION OR CARBON MON-

OXIDE POISONING.

AL VENT

TION

HORIZONT

APPLICA

APPLICATION

HORIZONTAL VENT

VERTICAL VENT

(Top Vent

Application)

HORIZONTAL VENT

(Top Vent

Application)

RECESSED

INSTALLATION

HORIZONTAL VENT

APPLICATION

Typical Locations

Figure 2

WARNING: CHILDREN AND ADULTS

SHOULD BE ALERTED TO THE HAZARDS

OFHIGHSURFACETEMPERATURES.USE

CAUTION AROUND THE APPLIANCE TO

AVOID BURNS OR CLOTHING IGNITION.

YOUNG CHILDREN SHOULD BE CARE-

FULLYSUPERVISEDWHENTHEYAREIN

THE SAME ROOM AS THE APPLIANCE.

Shelf Height inches (mm)

Top Vent

Model No.

Secure Vent

44 3/4 (1132)

46 3/4 (1188)

51 3/4 (1314)

Secure Flex

44 3/4 (1132)

46 3/4 (1188)

51 3/4 (1314)

MPLDV30

MPLDV35

MPLDV40/MPLDV45

WARNING: DO NOT PLACE CLOTHING

OR OTHER FLAMMABLE MATERIALS

ON OR NEAR THIS APPLIANCE.

Do not insulate the

space between the

appliance and the

area above it.

AVERTISSEMENT: SURVEILLER LES

ENFANTS. GARDER LES VÊTEMENTS,

LES MEUBLES, L'ESSENCE OU AUTRES

LIQUIDES À VAPEUR INFLAMMABLES À

COTE DE L'APPAREIL.

Shelf Height

(

see table)

LOCATION

Shelf Above Fireplace With Top Venting

Figure 3

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. Consideration should be given to

traffic ways, furniture, draperies, etc., due to

elevated surface temperatures (Figure 2 ).

*Note: 3 in. (76mm) above any horizontal/

inclined vent component for the MPLDV30

inallcases,andfortheMPLDV35,MPLDV40

& MPLDV45, when the vent center line is

greater than 48" (1219 mm) above the fire-

place top wrapper surface. Increase this

clearance to 5" (127 mm) for the MPLDV35,

MPLDV40 & MPLDV45, when the vent cen-

terlineislessthan48"(1219mm)abovethe

fireplace top wrapper surface.

1 in. (25.4 mm)

0 in. (0 mm) spacers

BACK

1 in. (25.4 mm)**

0 in. (0 mm) spacers

SIDES

The location should also be free of electrical,

plumbingorotherheating/airconditioningduct-

ing. These direct vent appliances are uniquely

suited for installations requiring a utility shelf

positioned directly above the fireplace. Utility

shelveslikethesearecommonlyusedforlocat-

ing television sets and decorative plants.

TOP SPACERS

FLOOR

0 in. (0 mm)

From Bottom of

Unit to Ceiling

64 in. (1626 mm)

1 in. (25.4 mm)*

**Note: See page 6, step 1 for clearance

requirements to the nailing flange located at

each side of the unit and any screw heads

adjacent to it.

VENT

SERVICE CLEARANCES

FRONT

3 Feet. (0.9 meters)

Table 2

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Toprovideforthelowestpossibleshelfsurface

the venting attached to the top vent should be

routed in a way to minimize obstructions to the

use of the space above the appliance. Do not

insulatethespacebetweentheapplianceand

the area above it. Refer to Figure 3. The

minimumheightfromthebaseoftheappliance

totheundersideofcombustiblematerialsused

to construct a utility shelf in this fashion is

shown in the table in Figure 3.

Massachusetts And New York City, NY

Requirements

Vertical Vent Termination Clearances

Terminatesingle ventcapsrelativetobuilding

components according to Figure 4.

These appliances are approved for installation

in the following USA locations listed in the

following:

Terminate multiple vent terminations accord-

ing to the installation codes listed at the top of

this page.

Massachusetts:

These fireplaces are approved for installation

in the US state of Massachusetts if the follow-

ing additional requirements are met-

TERMINATION HEIGHTS FOR VENTS ABOVE

FLAT OR SLOPED ROOFS

Horizontal Overhang

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 materi-

als. However, if installed on combustible mate-

rials, such as carpeting, vinyl tile, etc., a metal

or wood barrier covering the entire bottom

surface must be used.

2 FT

• Installation and repair must be done by a

plumber or gas fitter licensed in the Common-

wealth 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.

Vertical

Wall

MIN.

2 FT MIN.

Lowest

Discharge

Opening

Vent

Termination

Storm Collar

Flashing

Roof Pitch is X/12

MassachusettsHorizontal VentRequirements

1 inch (25.4 mm) Minimum

Clearance to Combustibles

APPLIANCE AND VENT CLEARANCES

Concentric

Vent Pipe

*H = MINIMUM HEIGHT FROM ROOF TO

LOWEST DISCHARGE OPENING OF VENT

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:

Refer To Table 2 for approved clearances to

combustibles for the models covered in this

manual,withthefollowingexception:Whenthe

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. SeeFigure 2.

Roof Pitch

(feet)

Flat to 6/12

1.0

1.25

1.5

• A hard wired carbon monoxide detector with

analarmandbatteryback-upmustbeinstalled

on the floor level where the gas fireplace is

installed. Thecarbonmonoxidedetectormust

comply with NFPA 720, be ANSI/UL 2034

listed and be ISA certified.

Over 6/12 to 7/12

Over 7/12 to 8/12

Over 8/12 to 9/12

Over 9/12 to 10/12

Over10/12 to 11/12

Over 11/12 to 12/12

2.0

2.5

3.25

4.0

Maintain a minimum 1" (25 mm) clearance

to combustible materials for all vertical

vent elements.

• Ametal or plasticidentificationplatemust 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.

Figure 4

Clearancesfor horizontal vent elementsare

1" (25 mm) at the sides and 1" (25 mm) on

the bottom. Clearances above horizontal

vent elementsare3"(76mm) for all models

and all applications. Exception: Clearance

is 5" (127 mm) for MPLDV35, MPLDV40 &

MPLDV45, when the center line of the hori-

zontal run is less than 48" (1219 mm) above

the fireplace top wrapper surface.

Horizontal Vent Termination Clearances

The horizontal vent termination must have a

minimum of 3" (76 mm) clearance to any over-

headcombustibleprojectionof2-1/2"(64mm)

or less. See Figure 5. For projections exceed-

ing2-1/2" (64mm),seeFigure5. Allhorizontal

terminations may be located as close as 6"

(152mm) to any (non-combustible and com-

bustible) exterior sidewall. This distance may

be decreased to 2" (51mm) for non-combus-

tible exterior sidewalls only, if the SV4.5HT-2

termination is used. For additional vent loca-

tion restrictions, refer to Figure 8 on page 7.

New York City, NY:

These fireplaces are approved for installation

in New York City in the US state of New York.

VENT TERMINATION CLEARANCES

Theseinstructionsshouldbeusedasaguide-

line 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.

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TYPICAL INSTALLATION SEQUENCE

Horizontal Vent Termination Clearances

The typical sequence of installation follows,

however,eachinstallationisuniqueresultingin

variations to those described.

Combustible Projection

2-1/2 inches or less in length

All horizontal terminations

Combustible Projection greater

than 2-1/2 inches in length

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.

Seethepagenumbersreferencesinthefollow-

ing steps for detailed procedures.

Ventilated

Soffit

Unventilated

Soffit

Step1. (page 6) Construct the appliance fram-

ing. Position the appliance within the framing

and secure with nailing brackets.

(76 mm)

18"

(457 mm)

12"

(305 mm)

Step 2. (page 6) Route gas supply line to

Termination Kit

appliance location.

Side Elevation View

Step 3. (page 10) Install the vent system

and exterior termination. Install additional

restrictor, if needed.

Termination Kit

Figure 5 - Side Elevation View

Step 4. (page 21) Field Wiring

a. Millivolt Appliances – The operating control

switch is factory installed.

b. Electronic Appliances – Connect 120 Vac

electrical power to the appliance receptacle.

Step 1. FRAMING

Unit

Nailing Flange

FrametheseappliancesasillustratedinFigure9

onpage8,unlesstheapplianceistobeinstalled

in a corner.

Step 5. (page 22) Make connection to gas

supply.

Side

Framing

See Figure 10 on page 8 for corner framing

installations. All framing details must allow for a

minimum clearance to combustible framing mem-

bers as shown in Table 2 on page 4.

Nailing Flanges Are

Provided At All Four

Corners At 5/8” , 1/2”

And Flush Settings

Step 6. (page 23) Install the logs and glow-

ing embers.

Left Side Top Corner of Fireplace Shown

(Right Side Requirements the Same)

Step7. (page23)Checkoutapplianceoperation.

Iftheapplianceistobeelevatedabovefloorlevel,

asolidcontinuousplatformmustbeconstructed.

Headers may be in direct contact with the appli-

ance top spacers but must not be supported by

themornotchedtofitaroundthem. Allconstruc-

tionabovetheappliancemustbeselfsupporting,

DONOTusetheapplianceforstructuralsupport.

Unit Being Secured By Its Nailing Flanges

To The Framing

Step 8. (page 23) Install glass door frame

assembly.

Note: The nailing flanges, combustible members

and screw heads located in areas directly adjacent

to the nailing flanges, are EXEMPT from the 1”

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” 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.

Step 9. (page 24) Adjust burner to ensure

proper flame appearance.

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. See

Figure 6. Use 8d nails or their equivalent.

DETAILED INSTALLATION STEPS

The appliance is shipped with all gas controls

and components installed and pre-wired. Re-

move the shipping carton, exposing the front

glassdoor. Removethebottompanelbylifting

and pulling it towards the front.

Unit Being Secured by Its Nailing

Flanges to the Framing

Step 2. ROUTING GAS LINE

Figure 6

Route a 1/2" (13 mm) gas line along the inside

of the left 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.

Left Side

Front Corner of

Fireplace Framing

Openthetwolatches(locatedunderthefirebox

floor) securing the glass door. Remove the

door by tilting it outward at the bottom and

liftingitup.Setthedoorasideprotectingitfrom

inadvertentdamage.SeeFigure39onpage23.

All appliances are factory-equipped with a flex-

ible gas line connector and 1/2 inch shutoff

valve. (See step 6 on page 22).

6-1/2"

(165 mm)

2-1/4"

(57 mm)

4-3/4"

(121 mm)

Figure 7

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EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS

NOTE: Local Codes Or Regulations

May Require Different Clearances.

See Item D in the Text Below.

NOTE: Location Of The Vent Termination

Must Not Interfere With Access To The

Electrical Service.

Center Line

Exterior Wall

Inside

of Termination

Corner Detail

*18”

Horizontal

Termination

18”

Inside Corner

Detail D

Ventilated Soffit

= 9” in U.S.

= 12” in Canada

3 ft.

Fixed

Closed

Window

Operable

Window

3 ft.

= Air Supply Inlet

= Vent Termination

= Area where Termination is not Permitted

Canadian Installation*

US Installation**

12 inches (30cm)**

6 inches (15cm) for appliances

< 10,000 Btuh (3kW), 9 inches (23cm)

for appliances > 10,000 Btuh (3kW) and

< 50,000 Btuh (15kW), 12 inches (30cm)

for appliances > 50,000 Btuh (15kW)**

A = Clearance above grade, veranda, porch, deck, or balcony. 12 inches (30cm)*

B = Clearance to window or door that may be opened.

C = Clearance to permanently closed window

6 inches (15cm) for appliances

< 10,000 Btuh (3kW), 12 inches (30cm)

for appliances > 10,000 Btuh (3kW)

12 inches (305mm) recommended to

prevent window condensation

9 inches (229mm) recommended to

prevent window condensation

D = Vertical clearance to ventilated soffit located above the

termination within a horizontal distance of 18 inches (458mm)

from the center line of the termination

18 inches (458mm)

E = Clearance to unventilated soffit***

12 inches (305mm)

F = Clearance to outside corner

G = Clearance to inside corner

5 inches (12.7cm) minimum

6 inches (15.2cm) minimum

5 inches (12.7cm) minimum

6 inches (15.2cm) minimum

H = Clearance to each inside of center line extended above

meter/regulator assembly

I = Clearance to service regulator vent outlet

3 feet (91cm) within a height of 15 feet

above the meter/regulator assembly*

3 feet (91cm)*

3 feet (91cm) within a height of 15 feet

above the meter/regulator assembly**

3 feet (91cm)**

J = Clearance to nonmechanical air supply inlet to building or 6 inches (15cm) for appliances

6 inches (15cm) for appliances

the combustion air inlet to any other appliance

< 10,000 Btuh (3kW), 12 inches (30cm)

for appliances > 10,000 Btuh (3kW)

< 10,000 Btuh (3kW), 9 inches (23cm)

for appliances > 10,000 Btuh (3kW) and

< 50,000 Btuh (15kW), 12 inches (30cm)

for appliances > 50,000 Btuh (15kW)**

K = Clearance to a mechanical air supply inlet

6 feet (1.83m)*

3 feet (91cm) above if within 10 feet

(3m) horizontally**

L = Clearance above paved sidewalk or paved diveway located 7 feet (2.13m)‡

on public property

7 feet (2.13m)‡

M = Clearance under veranda, porch, deck or balcony

N = Depth of Alcove (Maximum)

12 inches (30cm)*‡

6 feet (1.83m)*

12 inches (30cm)‡

6 feet (1.83m)**

O = Clearance to Termination (Alcove)

P = Width of Alcove (Minimum)

6 inches (15.2mm)*

3 feet (91cm)*

6 inches (15.2mm)**

3 feet (91cm)*

Q = Clearance to Combustible Above (Alcove)

18 inches (457mm)*

18 inches (457mm)**

* In accordance with the current CSA-B149.1 National Gas And Propane Installation Code.

** In accordance with the curent ANSI SZ223.1/NFPA 54 National Fuel Gas Codes.

*** Clearance required to vinyl soffit material - 30 inches (76cm) minimum.

‡ 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 2 sides beneath the floor:

Figure 8

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FIREPLACE FRAMING SPECIFICATIONS

Framing should be

constructed of 2 x 4

or larger lumber.

10-1/2

267

Model No.

MPLDV30

(

)

in.

30 9/16 40 3/4

786 1035

35 9/16 40 3/4

903 1035

40 9/16 45 3/4

1030 1162

45 9/16 45 3/4

1157 1162

16 1/2

419

in.

965

16 1/2

419

MPLDV35

MPLDV40

MPLDV45

(178)

5-1/8

(130)

in.

965

**12-1/8

(308)

16 1/2

419

in.

1092

16 1/2

419

1092

*9" (229 mm) For MPLDV-35, 40 & 45

**14-1/8" (359 mm) For MPLDV-35, 40 & 45

1/2 A

Inches (mm)

C is the required framing depth

dimension when the finish material

(drywall) thickness is 1/2 in. (13mm).

Figure 9

Framing

Note: The appliance 45° collar can be rotated about its axis to align for

corner installation. Remove interfering corner spacer. This spacer is

used for shipping only.

Model No.

MPLDV30

in. 30 1/4 52 1/4

14 7/64 26 1/8

358 664

mm 768

1327

940

in.

MPLDV35

MPLDV40

MPLDV45

in. 40 1/4 62 1/4

17 5/8 31 1/8

448 791

7 (178)

mm 1022

1581

1118

in.

May Be

Removed

May Be

Removed

Back wall of chase/enclosure

(including any finishing materials)

Note-

*These dimensions occur when one 45 degree elbow

is connected directly to the appliance collar.

Inches

(millimeters)

Venting requirements for corner installations - the horizontal vent length

“ a” to “ b,” must not exceed 28 inches (711 mm)

Corner Framing with Square Termination (SV4.5HT-2)

Figure 10

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FIREPLACE SPECIFICATIONS

6 5/8

(168)

TOP VIEW

(432)

(25.4)

3 5/16 (100 mm)

13 11/64

(335)

(254 mm)

2 9/32

(58)

4 3/4

(121)

FRONT VIEW

RIGHT SIDE VIEW

LEFT SIDE VIEW

Unit Dimensions

Model No.

MPLDV30

in. 40 1/2 37 1/2 20 5/8 24 1/8 30 1/4 19 3/4

mm 1029 953 534 613 768 502

9 7/8

251

27 1/4

692

in. 40 1/2 37 1/2 20 5/8 29 1/8 35 1/4 24 3/4 12 3/8 27 1/4

mm 1029 953 534 740 895 629 314 692

in. 45 1/2 42 1/2 25 5/8 34 1/8 40 1/4 29 3/4 14 7/8 32 1/4

mm 1156 1080 651 867 1022 756 378 819

in. 45 1/2 42 1/2 25 5/8 39 1/8 45 1/4 34 3/4 17 3/8 32 1/4

mm 1156 1080 651 994 1149 883 441 819

MPLDV35

MPLDV40

MPLDV45

Figure 11

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The vent system may not service multiple

appliances, and must never be connected to a

flueservingasolidfuelburningappliance. The

vent pipe is tested to be run inside an enclos-

ingwall (suchasachase). Thereisnorequire-

ment for inspection openings in the enclosing

wall at any of the joints in the vent pipe.

Step 3. INSTALL THE VENT SYSTEM

General Information

SV4.5CGV-1

Termination

SV4.5FA OR

SV4.5FB Flashing

AND SV4.5SC

STORM COLLAR

Theseinstructionsshouldbeusedasaguide-

line 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.

1" (25.4 mm)

Minimum

Clearance to

Combustibles

Select Venting System - Horizontal or Vertical

With the appliance secured in framing, deter-

mine 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

ventingcomponentsisshowninthetableson

page 26.

*SV4.5VF

Firestop/Spacer

These fireplaces are designed, tested

and listed for operation and installation

with, andonlywith, SecureVent™ Direct

Vent System Components, Secure Flex™

FlexibleVentComponentsmanufactured

by Security Chimneys International and

Z-FLEX™ Model GA Venting Systems

listed to UL1777 and ULCS635 manufac-

tured by Flexmaster Canada Limited.

Theseapprovedventsystemcomponents

are labeled for identification. DO NOT

use any other manufacturer's vent com-

ponents with these appliances.

40' Max.

SV4.5L6/12/24/36/48

Vent Sections

(12.2 M)

6' Min.

(1.8 M)

VERTICAL TERMINATION SYSTEMS (ROOF)

*When using Secure Flex,

use Firestop/Spacer

SF4.5VF

Figures 13, 17 and 23 through 25 on pages

12, 14 and 15 and their associated Vertical

Vent Tablesillustratethevariousvertical vent-

ing configurations that are possible for use

with these appliances. Secure Vent pipe ap-

plications are shown in these figures; Secure

Flex pipe may also be used.

Thesefireplacesmustbeventeddirectly

to the outside.

Figure 13

AVerticalVentTablesummarizeseachsystem’s

minimumandmaximumverticalandhorizontal

length values that can be used to design and

install the vent components in a variety of

applications.

Determine the venting for the appliance. If the

vent run will include at least 8 feet of vertical

rise, then install the second restrictor in the

appliance collar before connecting any vent

(RefertoFigure12). Placethesecondrestric-

tor inside the fixed restrictor.

Vertical (Offset) Installation

Analyze the vent routing and determine the

quantities of vent sections and number of

elbows required. Refer to Vertical Vent Fig-

ures and Tables on page 14 and 15 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 11 for an aid in selecting length

combinations. Elbows are available in 90° and

45° configurations. Refer to Figure 18 for the

SV4.5E45 and SV4.5E90 elbow dimensional

specifications.

Both these vertical vent systems terminate

through the roof. The minimum vent height

above the roof and/or adjacent walls is speci-

fiedinANSIZ223.1-(latestedition)(InCanada,

the current CAN-1 B149 installation code) by

major building codes. Always consult your

local codes for specific requirements. A gen-

eral guide to follow is the Gas Vent Rule (refer

to Figure 4 on page 6 ).

Note: The second restrictor is included within

the firebox.

Fixed Restrictor

Exhaust Vent

Vertical (Straight) Installation

Determine the number of straight vent sec-

tionsrequired.4-1/2"(114mm),10-1/2"(267

mm), 22-1/2" (572 mm), 34-1/2" (876 mm)

and 461/2" (1181 mm) net section lengths

are available. 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.

Second Restrictor (For Vertical Vent Only)

Figure 12

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Where required, a telescopic vent section

(SV4.5LA) maybeusedtoprovidetheinstaller

withanoptionininstallingintightand 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).

VENT SECTION LENGTH CHART

Nominal

Nominal Section

Section Length

Length (inches)

(inches)

Net Section

4-1/2 10-1/2 22-1/2 34-1/2 46-1/2

Number of Vent Sections

Net Section

Length (inches)

4-1/2 10-1/2 22-1/2 34-1/2 46-1/2

Number of Vent Sections

Length (inches)

Height of Vent

inches

144

inches

4.5

0.375

0.75

150

12.5

10.5 0.875

15 1.25

19.5 1.625

21 1.75

154.5 12.875

160.5 13.375

172.5 14.375

The SV4.5LA is fitted with a locking inclined

channel end (identical to a normal vent sec-

tion component) and a plain end with 3 pilot

holes. Slip the plain end over the locking

channel end of a standard SV4.5 vent com-

ponent the required distance and secure with

three #8 x 3/8" screws.

177

183

186

14.75

15.25

15.5

22.5 1.875

25.5 2.125

31.5 2.625

34.5 2.875

37.5 3.125

190.5 15.875

196.5 16.375

205.5 17.125

Maintain a minimum 1" (25 mm) clearance

to combustible materials for all vertical

vent elements.

43.5 3.625

207

17.25

3.75

211.5 17.625

46.5 3.875

49.5 4.125

217.5 18.125

229.5 19.125

232.5 19.375

Clearancesfor horizontal vent elementsare

1" (25 mm) at the sides and 1" (25 mm) on

the bottom. Clearances above horizontal

vent elementsare3"(76mm) for all models

and all applications. Exception: Clearance

is 5" (127 mm) for MPLDV35, MPLDV40 &

MPLDV45, when the center line of the hori-

zontal run is less than 48" (1219 mm) above

the fireplace top wrapper surface.

4.25

55.5 4.625

237

19.75

4.75

5.25

241.5 20.125

246

252

264

276

279

20.5

67.5 5.625

5.75

73.5 6.125

79.5 6.625

23.25

280.5 23.375

283.5 23.625

289.5 24.125

301.5 25.125

310.5 25.875

Thestarterelbowmaynotbeusedifa45degree

vent run is required directly off of the unit.

Refer to Detail - Figure 17.

6.75

7.5

91.5 7.625

7.75

A. Attach Supplied 45 Degree Starter Elbow -

Slip the plain end with 3 mounting holes over

the locking channel end of the appliance collar

and secure with three screws.

315

26.5

97.5 8.125

102 8.5

103.5 8.625

325.5 27.125

330

336

345

27.5

108

114

117

28.75

B. Support The Elbows - Support the starter

elbow and the vertical portions of the venting

system with support bracket as shown in

Figure 23 - Detail A, on page 14. Do not use

the starter elbow anywhere else in the vent

system if not used on the appliance collar.

SV4.5 rigid and flex components can be used

directly off the collar. Do not return to rigid

sections after using flex sections in a vent run.

9.5

9.75

349.5 29.125

372 31

118.5 9.875

126 10.5

376.5 31.375

379.5 31.625

418.5 34.875

130.5 10.875

135 11.25

423

465

35.25

38.75

138

11.5

10 10

139.5 11.625

142.5 11.875

C. Frame ceiling opening - Use a plumb line

from the ceiling above the appliance to lo-

cate center of the vertical run. Cut and/or

frameanopening,10-1/2"x10-1/2" (267mm

x 267mm) inside dimensions, about this

center mark (Figure 14 ).

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To attach a vent component to the 45 degree

starter elbow, align the dimpled end over the

elbow, 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 15 ).

This seating position is indicated by the

alignment of the arrow and dimple as shown

in Figure 16.

10 1/2” Min.

(267 mm)

10 1/2” Min.

(267 mm)

F. Install firestop/spacer at ceiling - When

usingSecureVent,useSV4.5VFfirestop/spacer

at ceiling joists; when using Secure Flex, use

SF4.5VFfirestop/spacer.Ifthereislivingspace

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.

Push the vent component against the starter

elbow 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 com-

ponents 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.

Route the vent sections through the framed

openingandsecurethefirestop/spacerwith8d

nails or other appropriate fasteners at each

corner. Remember to maintain 1" (25 mm)

clearance to combustibles, framing mem-

bers, and attic or ceiling insulation when

runningvertical chimneysections. Atticinsu-

lation shield (96K94) may be used to obtain

the required clearances indicated here. See

installation accessories table on page 25.

Figure 14

D. Attach vent components to 45 degree

starter elbow - Secure Vent SV4.5 direct vent

system components are unitized concentric

pipe components featuring positive twist lock

connections (see Figure 15 ).

Note: Always use the starter elbow directly

at the appliance 45° collar unless rigid

straightpipeofflexpipeisused, asshownin

Figure 17.

All of the appliances covered in this document

are fitted with collars having locking inclined

channels. The dimpled end of the vent compo-

nents fit over the appliance collar to create the

positive twist lock connection.

E. Attachventcomponentstoeachother-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

componentclockwiserunningthedimplesdown

and along the incline channels until they seat at

the end of the channels.

G. Support the vertical vent run sections -

Note - Proper venting support is very impor-

tant. The weight of the vent must not be

supported by the fireplace in any degree.

First Vent

Component

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 (conven-

tional plumber's tape). Secure the plumber's

tape to the framing members with nails or

screws.

Align the dimple (four places)

with the opening of the locking

incline channel on appliance

collar. Twist vent component

clockwise to engage and seal.

Dimple

Locking

Incline Channel

45 degree starter elbow

Vent / 45 Degree Starter

Elbow Connection

Figure 15

Arrow

Align the dimple (four places) of the

upper vent section with the opening of

the locking incline channel on the

lower vent section. Twist vent

Blocking

component clockwise to engage and

seal until arrow and dimple align.

Support Straps

(Plumber’s tape)

Dimple

Rigid Or Flex

Venting

Components May

Be Connected

Directly To The 45

Degree Collar.

Locking

Incline Channel

Connected

Vent Sections

8 feet (2.4 m)

Maximum

Arrow

Vent / Vent Section

Connection

Arrow

Detail

Figure 16

1 inch

(25.4 mm)

minimum

clearance to

combustibles

Figure 17

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H. Frame roof opening - Identify location for

vent at the roof. Cut and/or frame opening per

Roof Framing Chart and Figure 19.

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. Refer to Figure 17.

Storm

Collar

H. Change vent direction to horizontal/in-

clined run - At transition from or to a horizon-

tal/inclined 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

possiblity of unlocking any of the previously

connected vent sections. See Figure 18.

Figure 21

Framing Dimensions for Roof

L.Installtheverticaltermination-Thefinalstep

involves installation of the SV4.5CGV-1 Vertical

Termination. Extend the vent sections to the

height as shown in the "Vertical vent termination

section" on page 6. The SV4.5CGV-1 Vertical

Termination (Figure 22 ) installs in the exact

same fashion as any other Secure Vent section.

Align the termination over the end of the previ-

ouslyinstalledsection,adjustingtheradialalign-

ment until the four locking dimples of the termi-

nation are aligned with the inlets of the four

inclinechannelsofthelastventsection. Pushthe

terminationdownuntilitfullyengages,thentwist

the termination clockwise running the dimples

down and along the incline channels until they

seat at the end of the channels.

Pitch

0/12

10-1/2 in. 10-1/2 in.

(267 mm) (267 mm)

6/12

10-1/2 in.

(267 mm) (305 mm)

12 in.

8-1/8"

(206 mm)

4-13/16"

(122 mm)

12/12

10-1/2 in. 17-3/4 in.

(267 mm) (451 mm)

Swivel Joint

(360¡ swivel)

Figure 19

SV4.5E45

SV4.5E90

(45¡ Elbow)

(90¡ Elbow)

J. Install the roof flashing - Extend the vent

sectionsthroughtheroofstructure. Installthe

roof flashing over the vent section and posi-

tion such that the vent column rises vertically

(use carpenters level) (Figure 20 ). 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.

Figure 18

I. Continueinstallationofhorizontal/inclined

sections - Continue with the installation of the

straight vent sections in horizontal/inclined

run as described in Step E. Install support

straps every 5' (1.52 m) along horizontal/

inclinedventrunsusingconventionalplumber’s

tape. It is very important that the horizontal/

inclined run be maintained in a straight (no

dips) and slightly elevated plane in a direc-

tion away from the fireplace 1/4" per foot (20

mm per meter) which is ideal, though rise per

foot run ratios that are smaller are acceptable

all the way down to at or near level.

It is important to maintain the required clear-

ances to combustibles at the top and bottom

for all horizontal/inclined runs.

Figure 22

Maintain a minimum 1" (25 mm) clearance

to combustible materials for all vertical

vent elements.

Figure 20

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

support on multiple joint configurations.

K. Install the storm collar - Install the storm

collar, supplied with the flashing, over the

vent/flashing joint. See Figure 21. Loosen

the storm collar screw. Slide collar down until

it meets the top of the flashing. Tighten the

adjustingscrew.Applynon-combustiblecaulk-

ing or mastic around the circumference of the

joint to provide a water tight seal.

Clearancesfor horizontal vent elementsare

1" (25 mm) at the sides and 1" (25 mm) on

the bottom. Clearances above horizontal

vent elementsare3"(76mm) for all models

and all applications. Exception: Clearance

is 5" (127 mm) for MPLDV35, MPLDV40 &

MPLDV45, when the center line of the hori-

zontal run is less than 48" (1219 mm) above

the fireplace top wrapper surface.

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VERTICAL VENT FIGURES/TABLES

Note: Secure Vent (rigid vent pipe) is shown in the figures; Secure Flex (flexible vent pipe) may

also be used.

WARNING: UNDER NO CIRCUMSTANCES MAY SEPARATE SECTIONS

OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER.

Note: It is very important that the horizontal/inclined run be maintained in a straight (no dips)

and recommended to be in a slightly elevated plane, in a direction away from the fireplace of

1/4" rise per foot (20 mm per meter) which is ideal, though rise per foot run ratios that are smaller

are acceptable all the way down to at or near level.

Note:SV4.5VF(SecureVent),SF4.5VF(SecureFlex)firestop/spacermustbeusedanytimeventpipe

passes through a combustible floor or ceiling. SV4.5HF (Secure Vent) or SF4.5HF (Secure Flex)

must be used anytime vent pipe passes through a combustible wall. For the MPLDV35/40/45, with

a center line lower than 48" (1219 mm) above the fireplace top wrapper surface, use SV4.5HF5 or

SF4.5HF5. In all cases the firestop/spacer provided with the termination may be used with the

termination, frame to 5" clearance where applicable.

Note: Two 45 degree elbows may be used in

placeof one90degreeelbow. Thesameriseto

run ratios, as shown in the venting figures for

90 elbows, must be followed if 45 degree

TABLE A

H Maximum

V Minimum

(meters)

elbows are used.

(meters)

feet

(1.524)

(3.048)

(4.572)

(6.096)

(0.305)

(0.610)

(0.914)

(1.219)

Ceiling

*Ceiling

Firestop/Spacer

(SV4.5VF)

Firestop/Spacer

(SV4.5VF)

V + H = 40 feet (12.2 m) Max.

H = 20 feet (6.096 meters) Max.

**Wall

Firestop/Spacer

40 feet

(12.2 meters)

Maximum

Detail View

Support

Bracket

*When using Secure Flex,

use Firestop/Spacer

SF4.5VF

Support

Bracket

**Use Firestop/Spacer SV4.5HF or SF4.5HF when using Secure Vent or Secure Flex respectively.

Use Firestop/Spacer SV4.5HF5 or SF4.5HF5 when using Secure Vent or Secure Flex on horizontal

vent runs for the MPLDV35/40/45 with a center line lower than 48” (1219 mm) above the fireplace

top wrapper surface. In all cases the firestop/spacer provided with the termination may be used

with the termination, frame to 5” clearance where applicable.

When using Secure

Flex, use

Firestop/Spacer

SF4.5VF

Example: If 20 feet of (H) horizontal vent run is needed, then 4 feet minimum of (V) vertical

vent will be required.

Note: Install second restrictor in any run

having more than 8 ft. of vertical rise.

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.

Figure 23 - Top Vent - STRAIGHT

Figure 24 - Top Vent - TWO 90 DEGREE ELBOWS

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VERTICAL VENT FIGURES/TABLES

(continued)

TABLE B

*Ceiling

V Minimum

(meters)

(0.305)

H +

feet

₁Maximum

Firestop/Spacer

(SV4.5VF)

**Wall

Firestop/Spacer

(meters)

(1.524)

(3.048)

(4.572)

(6.096)

feet

(0.610)

(0.914)

(1.219)

H + H = 20 feet (6.096 m) Max.

+ H + H = 40 ft. (12.192 m) Max.

Example: If 20 feet of (H) horizontal vent run is

needed, then 4 feet minimum of (V) vertical vent

will be required.

*When using Secure Flex,

use Firestop/Spacer

SF4.5VF

Support

Bracket

This table shows a 1 (V) to 5 (H) ratio. For every

1 foot of (V) vertical, you are allowed 5 feet of (H)

horizontalrun,uptoamaximumhorizontalrunof

20 feet.

Detail View

**Use Firestop/Spacer SV4.5HF or SF4.5HF when using Secure Vent or Secure

Flex respectively. Use Firestop/Spacer SV4.5HF5 or SF4.5HF5 when using

Secure Vent or Secure Flex on horizontal vent runs for the MPLDV35/40/45

with a center line lower than 48” (1219 mm) above the fireplace top wrapper

surface. In all cases the firestop/spacer provided with the termination may

be used with the termination, frame to 5” clearance where applicable.

Figure 25 - Top Vent - THREE ELBOWS

HORIZONTAL (OUTSIDE WALL)

TERMINATION SYSTEM

B. Support The Elbows - Support the starter

C. Plan the vent run -

elbow and the horizontal portions of the vent-

ing system with support bracket as shown in

Figure 29 to 32.

Analyze the vent routing and determine the

types and quantities of sections 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.

Plan the vent lengths so that a joint does not

occur at the intersection of ceiling or roof

joists. Make allowances for elbows as indi-

cated in Figure 18 on page 13.

Figures 26, and Figures 29 to 32 on pages 18

and 19 and their associated Horizontal Vent

Table illustrate the various horizontal venting

configurations that are possible for use with

these appliances. Secure Vent pipe applica-

tions are shown in these figures; Secure Flex

pipe may also be used. A Horizontal Vent Table

summarizeseachsystem’sminimumandmaxi-

mum vertical and horizontal length values that

can be used to design and install the vent

components in a variety of applications.

Both of these horizontal vent systems terminate

through an outside wall. Building Codes limit or

prohibit terminating in specific areas. Refer to

Figure 8 on page 7 for location guidelines.

SecureVent SV4.5direct vent systemcompo-

nents are unitized concentric pipe compo-

nents featuring positive twist lock connection,

(refer to Figure 15 and 16 on page 12). All of

the appliances covered in this document are

fittedwithcollarshavinglockinginclinedchan-

nels. The dimpled end of the vent components

fit over the appliance collar to create the posi-

tive twist lock connection.

Maintain a minimum 1" (25 mm) clearance

to combustible materials for all vertical

vent elements.

A. Attach Supplied 45 Degree Starter Elbow

- Slip the plain end with 3 mounting holes over

the locking channel end of the appliance collar

and secure with three screws.

Clearancesfor horizontal vent elementsare

1" (25 mm) at the sides and 1" (25 mm) on

the bottom. Clearances above horizontal

vent elementsare3"(76mm) for all models

and all applications. Exception: Clearance

is 5" (127 mm) for MPLDV35, MPLDV40 &

MPLDV45, when the center line of the hori-

zontal run is less than 48" (1219 mm) above

the fireplace top wrapper surface.

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D. Frame exterior wall opening -

TYPICAL HORIZONTAL VENT INSTALLATION

Locate the center of the vent outlet on the

exterior wall according to the dimensions

shown in Figure 9 on page 8.

Support

Brackets

Horizontal / Inclined Run

Building

Support

Framing

SV4.5 HT-2

Termination

SV4.5E90

Elbow

Cut and/or frame an opening, 10-1/2" x 12-1/8"

(267 mm x 308mm) inside dimensions, about

this center.

Exterior

Wall

SV4.5L6/12/24/36/48

Vent Sections

E. Frameceilingopening-Iftheverticalroute

is to penetrate a ceiling, use plumb line to

locatethecenterabovetheappliance. Cutand/

or frame an opening, 10-1/2" x 10-1/2" (267

mm x 267 mm) inside dimensions, about this

center (refer to Figure 14 on page 11 ).

Ceiling

Vertical

Rise

Firestop/Spacer

Support Bracket Spacing

Every 5 ft (1.52 m)

SV4.5 HT-2

Termination

See Figure 17 on page 12 for

vertical vent section support.

Exterior

Wall

F. Attach vent components to starter elbow -

To attach a vent component to the the starter

elbow, align the dimpled end over the collar,

adjusting the radial alignment until the four

locking dimples are aligned with the inlets of

the four incline channels on the collar (refer to

Figure 15 on page 12).

Fireplace

Figure 26

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.

Install support straps every 5 ft. (1.52 m)

along horizontal/inclined vent runs using con-

ventional plumber’s tape. See Figure 26, it is

very important that the horizontal/inclined

run be maintained in a straight (no dips) and

recommended to be in a slightly elevated

plane, in a direction away from the fireplace

of 1/4" rise per foot (20 mm per meter) which

is ideal, though rise per foot run ratios that are

smallerareacceptableallthewaydowntoator

near level. Use a carpenter’s level to measure

fromaconstantsurfaceandadjustthesupport

straps as necessary.

Push the vent component against the elbow

untilitfullyengages,thentwistthecomponent

clockwise,runningthedimplesdownandalong

the incline channels until they seat at the end

of the channels. The unitized design of the

SecureVent componentswill engageandseal

both the inner and outer pipe elements with

the same procedure. Sealant and securing

screws are not required.

Remember to maintain 1" (25 mm) clearance

tocombustibles, framingmembers, andattic

or ceiling insulation when running vertical

chimney sections.

Note: A 90 or 45 degree elbow may not be

directly attached to the appliance elbow

collar.

It is important to maintain the required clear-

ances to combustibles at the top and bottom

for all horizontal/inclined runs.

I. Support the vertical run sections -

On the vertical run, support the venting sys-

tem every 8 feet (2.4m) above the fireplace

vent outlet with field provided support straps

(Plumber's tape).

G. Attach vent components to each other -

Other vent sections may be added to the pre-

viously installed section in accordance with

the requirements of the vent tables.

Maintain a minimum 1" (25 mm) clearance

to combustible materials for all vertical

vent elements.

Attachthestrapstotheventpipeandsecureto

the framing members with nails or screws.

See Figure 17 on page 12.

To add another vent component to a length of

vent run, align the dimpled end of the compo-

nent over the inclined channel end of the

previously installed section, adjusting the ra-

dial alignment until the four locking dimples

are aligned with the inlets of the four incline

channels of the previous section.

Clearancesfor horizontal vent elementsare

1" (25 mm) at the sides and 1" (25 mm) on

the bottom. Clearances above horizontal

vent elementsare3"(76mm) for all models

and all applications. Exception: Clearance

is 5" (127 mm) for MPLDV35, MPLDV40 &

MPLDV45, when the center line of the hori-

zontal run is less than 48" (1219 mm) above

the fireplace top wrapper surface.

J. Change vent direction - At transition from

or to a horizontal/inclined 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

elbowsectionsinaclockwisedirectiononly

so as to avoid the possiblity of unlocking

any of the previously connected vent sec-

tions. See Figure 18 on page 13.

Pushtheventcomponentagainsttheprevious

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 16 on

page 12.

L. Assemble vent run to exterior wall - If not

previously measured, locate the center of the

vent at the exterior wall. Prepare an opening

as described in Step D. Assemble the vent

system to point where the terminus of the last

section is within 7 in. (178 mm) to 11-1/4 in.

(286 mm) inboard of the exterior surface to

which the SV4.5 HT-2 termination is to be

attached, see Figure 28.

K. Continueinstallationofhorizontal/inclined

sections- Continuewiththeinstallationofthe

straight vent sections in horizontal/inclined

run as described in Step F.

H. Install firestop/spacer at ceiling -

WhenusingSecureVent,useSV4.5VFfirestop/

spaceratceilingjoists;whenusingSecureFlex,

use SF4.5VF firestop/spacer.

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If the terminus of the last section is not within

this distance, use the telescopic vent section

SV4.5LA, as the last vent section. For wall

thicknesses greater than that shown in Figure

28, refer toTable3onpage18. Thistablelists

the additional venting components needed (in

addition to the termination and adapter) for a

particular range of wall thicknesses.

Firestop/Spacer provided with the

termination shown on the exterior

side of the wall. It may also be

installed on the interior side.

SV4.5 HT-2

Termination

**7"

10-1/2"

(267 mm)

(178)

**12-1/8"

(308 mm)

5-1/8"

(130 mm)

**3” (76 mm)

M. Attach termination adapter - Attach the

adapter (SV4.5RCH - provided with the termi-

nation) to the vent section or telescoping vent

section), elbow as shown in Figure 27 in the

same manner as any SV4.5 vent component

(refer to Step F).

for MPLDV30/35

6 to 48 inch

(25.4 mm)

Vent Section,

Telescopic vent

section on Elbow

Note: Centerline of Vent Piping is

NOT the Same as the Centerline of

the Frame Opening.

N. Install Firestop/Spacer at exterior wall -

When using the square termination, install

the SV4.5HF (Secure Vent) or SF4.5HF (Se-

cure Flex) Firestop/Spacer over the open-

ing at the exterior side of the framing (long

side up) as shown in Figure 27, and fasten

into place. Ensure 5" clearance is main-

tained by framing above the vent run for

MPLDV35/40/45 when center line of the

run is lower than 48" (12119 mm) above

the fireplace top wrapper surface.

Adapter

SV4.5RCH

See Figure 9 on page 8

for Min. Distance to Base

of Appliance.

**Increase these dimensions by 2” (51mm) for MPLDV35/40/45

with horizontal vent runs with center lines lower than 48”

(1219mm) above the fireplace for wrapper surface.

Base of Appliance

Installing the Square Horizontal Termination (SV4.5HT-2)

Figure 27

*Use silicone caulking to

seal the top and sides of

the termination, up to the

underlayment, stucco, or

masonry wall surface.

Maximum wall thickness

10 in.(254 mm)**

(The Firestop/Spacer may also be installed

over the opening at the interior side of the

framing.)

Interior Surface of

Finished Wall

Exterior Surface of Siding

Exterior Surface of

Framing

Maximum Extent of

Vent Run Sections

Relative to Exterior

Surface of Framing

Siding

*Caulk

O. Install the desired termination -

6 in. to 9-1/4 in.

(152 to 235 mm)**

Last Vent Section. Use

Tel escopi c Vent

Section (SV4.5LA), If

Necessary

1. Install thesquaretermination(SV4.5HT-2)-

For the last step , from outside the exterior wall,

slide the collars of the termination onto the

adapter (the outer over the outer and the inner

insidetheinner)untiltheterminationseatsagainst

the exterior wall surface to which it will be

attached. Orient the housing of the termination

with the arrow pointed upwards. Secure the

termination to the exterior wall. The horizontal

termination must not be recessed into the

exterior wall or siding by more than the 1-1/4"

(32 mm) as shown in Figure 28.

SV4.5HT-2

Square Termination

*Caulk

SV4.5HT-2

Square Termination

Adapter

SV4.5RCH

1-1/4" Maximum Recess of

Square Termination into

Exterior Finishing Material

**For thicknesses greater

than 10” , see Table 3.

Stucco

SVHRK Snorkel Cap –The snorkel cap is de-

signed to be fitted into a basement window box.

The SVHRK cap is for use with flex vent. The

vertical distance between the inlet and outlet of

the cap is 28 in. (711 mm). pipe.

Venting Connection and Exterior Wall Recessing of the

Horizontal Square Termination (SV4.5HT-2).

Figure 28

Horizontal terminations have been designed to perform in a wide range of weather

conditions. Our terminations meet or exceed industry standards.

IMPORTANT: The vent termination is

hotwhileinoperationandforaperiodof

time following use of the fireplace. To

prevent contact with hot surfaces, we

recommend the use of a Termination

Guard. This can be purchased at your

local dealer.

When selecting the locations of your horizontal terminations, do not place the

termination where water from eaves and adjoining rooflines may create a heavy flow

of cascading water onto the termination cap. If the cap must be placed where the

possibility of cascading water exists, it is the responsibility of the builder to direct the

water away from the termination cap by using gutters or other means.

Take care to carefully follow the installation instructions for the termination, including

the use of silicone caulking where required.

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HORIZONTAL VENT FIGURES/TABLES

Note: Secure Vent components (rigid vent pipe and terminal) are

shown in the figures; Secure Flex components (flexible vent pipe and

terminal) may also be used.

The SV4.5HF or SF4.5HF firestop provided with each termination can be

usedasshowninFigure29 whenfittedattheexteriorwalladjacenttothe

termination.

Note: Two45degreeelbowsmaybeusedinplaceofone90degreeelbow.

The same rise to run ratios, as shown in the venting figures for 90 degree

elbows, must be followed if 45 degree elbows are used.

WARNING: UNDER NO CIRCUMSTANCES MAY SEPA-

RATE SECTIONS OF CONCENTRIC FLEXIBLE VENT PIPE

BE JOINED TOGETHER.

Note: It is very important that the horizontal/inclined run be main-

tained in a straight (no dips) and recommended to be in a slightly

elevated plane, in a direction away from the fireplace of 1/4" rise per

foot(20mmpermeter)whichisideal, thoughriseperfootrunratiosthat

are smaller are acceptable all the way down to at or near level.

TABLE 3

Venting Components Required for Various Exterior Wall

Thicknesses, When Using The Square Termination (SV4.5HT-2)

Note: SV4.5VF (Secure Vent), SF4.5VF (Secure Flex) firestop/spacer

must be used anytime vent pipe passes through a combustible floor or

ceiling. Lennox MPLDV35"/40" & 45" models require 5" clearances to

combustibles above horizontal vent runs when the centerline of the

horizontal vent run is at or below 48" (1219 mm) above the fireplace top

wrapper. In all other instances, with these three models and with the

MPLDV30 in all instances, the clearance to combustibles above horizon-

tal vent runs is 3". Please note that to facilitate the 5" clearance when

required, we have two 5" clearance firestops. The SV4.5HF5 is for use

with rigid (Secure Vent™ ) and the SF4.5HF5 is for use with (Secure

Flex™ ). These firestops should be used whenever horizontal vent runs

meetingtheuserequirementsdetailedabove, penetratewallsseparating

occupied rooms in a house.

Exterior Wall Thickness

Venting Components Required

inches (mm)

Termination Kit Only

6 to 9-1/4 (152 to 235)

Termination Kit and 6 in. Vent

Section (SV4.5L6)

10-1/2 to 13-3/4 (267 to 349)

Termination Kit and 12 in. Vent

Section (SV4.5L12)

16-1/2 to 19-3/4 (419 to 502)

11 to 19-3/4 (279 to 502)

Termination Kit and Telescopic

Section (SV4.5LA 2 to 7-12 in.)

& 6 in. vent section (SV4.5L6)

Each of our horizontal terminations are shipped with a standard 3"

clearancehorizontalfirestop. InALLcasesthisfirestopmaybeusedatthe

exterior wall regardless of any circumstances that may require the 5"

clearance to combustibles above the horizontal vent component. The

firestop provided with the termination is not specific for use with any

particular clearance height.

SV4.5HF/SF4.5HF

Firestop

SV4.5HF/SF4.5HF

Firestop

Stud

Framing

Stud

Framing

Top

Spacer

Top

Spacer

5”

3”

1”

3” Clearance

5” Clearance

Figure 29

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*Use Firestop/Spacer SV4.5HF or SF4.5HF

when using Secure Vent or Secure Flex

respectively. Use Firestop/Spacer SV4.5HF5

or SF4.5HF5 when using Secure Vent or

Secure Flex on horizontal vent runs for the

MPLDV35/40/45 with a center line lower than

48” (1219 mm) above the fireplace top

wrapper surface. In all cases the

Example: If 20 feet of (H)

horizontalventrunisneeded,

then 4 feet minimum of (V)

vertical vent will be required.

TABLE C

H Maximum V Minimum

(meters)

(1.524)

(3.048)

(4.572)

(6.096)

(meters)

(0.305)

(0.610)

(0.914)

(1.219)

feet

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.

firestop/spacer provided with the termination

may be used with the termination, frame to

5” clearance where applicable.

V + H = 40 feet (12.2 m) Max.

H = 20 ft. (6.096 m) Max.

Support

Bracket

*Wall

Firestop/Spacer

**Wall

Firestop/Spacer

*Ceiling

Firestop/Spacer

(SV4.5VF)

H = 28 inches (711 mm) Maximum

*When using Secure Flex, use

Firestop/Spacer SF4.5VF

Square termination (SV4.5HT-2) shown.

**Use Firestop/Spacer SV4.5HF or SF4.5HF when using

Secure Vent or Secure Flex respectively. Use

Firestop/Spacer SV4.5HF5 or SF4.5HF5 when using

Secure Vent or Secure Flex on horizontal vent runs for

the MPLDV35/40/45 with a center line lower than 48”

(1219 mm) above the fireplace top wrapper surface.

In all cases the firestop/spacer provided with the

termination may be used with the termination, frame

to 5” clearance where applicable.

Figure 31 - Top Vent - ONE 90 DEGREE ELBOW -

CONNECTION DIRECTLY AT APPLIANCE

Support

Bracket

Square termination (SV4.5HT-2) shown.

See Table 3 as an aid in venting component selection

for a particular range of exterior wall thicknesses.

Figure 30 - Top Vent - ONE 90 DEGREE ELBOW - ELBOW

CONNECTION NOT DIRECTLY AT APPLIANCE

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HORIZONTAL VENT FIGURES/TABLES (CONTINUED)

**Wall

Firestop/Spacer

TABLE D

V Minimum

(meters)

feet

+ H₁Maximum

(meters)

(1.524)

(3.048)

(4.572)

(6.096)

feet

(0.305)

(0.610)

(0.914)

(1.219)

***Note - When using

Secure Flex, use

**Wall

Firestop/Spacer

Firestop/Spacer SF4.5VF

V + + H = 40 feet (12.2 m) Max.

**Use Firestop/Spacer SV4.5HF or SF4.5HF when

using Secure Vent or Secure Flex respectively. Use

Firestop/Spacer SV4.5HF5 or SF4.5HF5 when using

Secure Vent or Secure Flex on horizontal vent runs

for the MPLDV35/40/45 with a center line lower than

48” (1219 mm) above the fireplace top wrapper

surface. In all cases the firestop/spacer provided

with the termination may be used with the

+ H = 20 ft. (6.096 m) Max.

***Ceiling

Firestop/Spacer

(SV4.5VF)

Example: If 20 feet of (H) horizontal vent run

isneeded, then4feetminimumof(V)vertical

vent will be required.

Support Bracket

To Top Surface Of

Fireplace

termination, frame to 5” clearance where applicable.

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.

Square termination (SV4.5HT-2) shown.

See Table 3 on page 18 as an aid in venting component selection for a particular range

of exterior wall thicknesses.

Figure 32 - Top Vent - TWO 90 DEGREE ELBOWS - ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE

**When using Secure Flex, use

Firestop/Spacer SF4.5VF

TABLE E

+ H₁Maximum

+ V

feet

₁Minimum

(meters)

(0.305)

(0.610)

(0.914)

(1.219)

(meters)

(1.524)

(3.048)

(4.572)

(6.096)

feet

**Ceiling

Firestop/Spacer

(SV4.5VF)

***Wall

Firestop/Spacer

+ H = 20 feet (6.096 m) Max.

+ V + + H = 40 ft. (12.192 m) Max.

Example: If 20 feet of (H) horizontal vent

run is needed, then 4 feet minimum of (V)

vertical vent will be required.

***Use Firestop/Spacer SV4.5HF

or SF4.5HF when using Secure

Vent or Secure Flex respectively.

Use Firestop/Spacer SV4.5HF5

or SF4.5HF5 when using Secure

Vent or Secure Flex on horizontal

vent runs for the MPLDV35/40/45

with a center line lower than 48”

(1219 mm) above the fireplace

top wrapper surface. In all cases

the firestop/spacer provided with

the termination may be used with

the termination, frame to 5”

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 maxi-

mum horizontal run of 20 feet.

**Ceiling

Firestop/Spacer

(SV4.5VF)

***Wall

Firestop/Spacer

Support Bracket

*To Top Surface

Of Fireplace

clearance where applicable.

Square termination (SV4.5HT-2) shown.

See Table 3 on page 18 as an aid in venting component selection for a particular range of exterior wall thicknesses.

Figure 33 - Top Vent - THREE 90 DEGREE ELBOWS - ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE

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VERTICAL OR HORIZONTAL VENTING USING

SECURE FLEX KITS AND COMPONENTS

FLEX VENT

NOTE: OUTER PIPE IS PULLED AWAY TO

SHOW THE DETAIL OF THE INNER PIPE

Secure Flex venting kits and components may

be used in any venting application where rigid

Secure Vent (SV4.5) direct vent components

can be used. All restrictions, clearances and

allowancesthatpertaintotherigidpipingapply

to the flexible venting. Secure Flex kits may

notbemodified;also, undernocircumstances

may separate sections of flex pipe be joined

together. Secure Flex kits may be added to the

end of a vent run made up of rigid Secure Vent

(SV4.5) vent sections provided that doing so

does not violate any of the venting length,

height, routing, horizontal to vertical ratio re-

quirements or clearance considerations de-

tailed in this manual.

SECURING SCREW

(3 PLACES EQUIDISTANT

JUST BELOW GEAR CLAMP)

Apply ONLY MIL-PAC BLACK HIGH

TEMPERATURE SEALANT (Catalog No.

10K81) to the outside surface of both

collars of the adapter (be especially

careful to fill the grooves of the outer

collar to be covered by the flexible

pipe) and slide flexible pipe over

inner and outer adapter collars.

GEAR

CLAMPS

1-3/4 in. (44 mm)

Flexible Pipe and

Adapter Outer

1-3/4 in. (44 mm)

Flexible Pipe and

Adapter Inner

Collar Overlap

SecureFlexkitscomewithanincludedadapter

that can be fitted to the appliance collar or the

inclined channel end of the last Secure Vent

(SV4.5) vent section in a rigid system in the

exact same fashion as any other Secure Vent

section. Align the dimpled end of the adapter

over the previously installed section or appli-

ance collar, adjusting the radial alignment until

the four locking dimples of the adapter are

aligned with the inlets of the four incline chan-

nels of the last vent section or collar. Push on

the adapter until it fully engages, then twist the

adapter clockwise running the dimples down

and along the incline channels until they seat at

the end of the channels.

Collar Overlap

Adapter

(SV4.5RF)

SECURING SCREW

(3 PLACES EQUIDISTANT

JUST BELOW GEAR CLAMP)

Attach Adapter to Appliance

Collar, or Secure Vent Sections

Figure 34

2. ApplyabeadofMill-PacBlack(700°F)high

temperature sealant - Catalog No. 10K81) to

the outer adapter collar; to the grooves of the

collar which extend approximately 1 inch from

theendandtotheflatsurface,approximately1-

3/8 inches from the end.

3. Pull and extend the outer flexible vent pipe.

4. Slide the outer flex pipe over the adapter

collar. Ensure the flexible vent pipe com-

pletely engages the adapter collar to a dis-

tance of 1-3/4 inches from the end, and that

it is free from damage or tears.

SV4.5HF (Secure Vent) or SF4.5HF (Secure

Flex) must be used anytime vent pipe passes

through a combustible wall. For the

MPLDV35/40/45withacenter linelower than

48" (1219 mm) above the fireplace top wrap-

persurfaceuseSV4.5HF5orSV4.5HF5. Inall

cases the firestop/spacer provided with the

termination may be used with the termina-

tion, frame to 5" clearance where applicable.

Attach the flexible vent to the adapter as

follows (also see Figure 34 ):

A. Install the Inner Flex Pipe -

1. Installthesmall gearclamplooselyaroundthe

innerflexibleventpipe,pushitbackoutoftheway.

2. Apply a bead of Mill-Pac Black (700°F)

high temperature sealant - Catalog No.

10K81) to the inner adapter collar, approxi-

mately 1/2 inch from the end.

See the appropriate sections and figures

shown throughout the venting section for

their installation requirements.

5. Slide the gear clamp down and tighten it

fully to secure the flexible vent to the adapter

outer collar approximately 3/4 inch from the

end of the flex.

Flexible Vent Section

6. Install three screws 120 degrees apart

through the flexible vent pipe and into the

adapter collar just below the gear clamp to

provide additional security to the connection.

3. Pull and extend the inner flexible vent pipe.

4. Slide the inner flex pipe over the adapter

collar.Ensuretheflexibleventpipecompletely

engages the adapter collar to a distance of 1³⁄₄

inches from the end, and that it is free from

damage or tears.

C. Route Flex Vent -

Ensure that the flex vent is properly routed to

provide the required clearance. Do Not allow

theflexibleventtobendinaradiustighterthan

5" (127 mm). Refer to Figure 35. Support

horizontal sections of flex with metal straps at

2 foot (0.61 m) intervals.

5. Slide the gear clamp down and tighten it

fully to secure the flexible vent to the adapter

inner collar approximately 3/4 inch from the

end of the flex.

6. Install three screws 120 degrees apart

through the flexible vent pipe and into the

adapter collar just below the gear clamp to

provide additional security to the connection.

5" (127 mm)

Radius Minimum

Figure 35

E. Attach Flex Vent to Termination -

D. Install Firestop/Spacers at ceilings and walls -

When Secure Flex penetrates a wall or ceil-

ing, a firestop/spacer is required: use SV4.5

(Secure Vent), SF4.5 (Secure Flex) firestop/

spacer anytime vent pipe passes through a

combustible floor or ceiling.

Secure Flex components can be purchased

separately and attached to bulk lengths of

Secure Flex flexible tubing cut to size at the

jobsite. SecuretheflexibleventtotheSecure

Flex terminations in the same manner (see

Figure 34) as it was attached to the adapter.

B. Install the Outer Flex Pipe -

1. Install the large gear clamp loosely around

the outer flexible vent pipe, push it back out of

the way.

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Note: Secure Flex vent must be attached to

Secure Flex terminations only. DO NOT

substitute Secure Vent terminations or the

Secure Vent adapter for Secure Flex compo-

nents. The collars of Secure Flex termina-

tions and adapters have a different circum-

ference than that used with the Secure Vent

pipe. Additionally, Secure Flexcomponents

have an extended length center tube for use

in attaching the flexible vent.

4.Ifanoptionalcontrolswitchisinstalled,turn

the appliance-mounted ON/OFF burner con-

trol switch to the OFF position.

Optional wall-mounted switch, thermostat, or

one of the optional remote control kits may

also be used. The appliance mounted ON/OFF

switch needs to be relocated onto the optional

style view door, if used.

B. Electronic Wiring (See Figure 37 ) –

Note: The electronic appliance must be con-

nected to the main power supply.

7. If wall-mounted ON/OFF control or thermo-

stat is to be used, mount it in a convenient

location on a wall near the fireplace.

1. Route a 3-wire 120Vac 60Hz 1ph power

supply to the appliance junction box.

8. If an optional control is to be used, wire it in

the low voltage circuit as shown in Figure 37.

Step 4. FIELD WIRING

2. Remove the electrical inlet cover plate from

the side of the unit by removing the plate's

securing screws. See Figure 11 on page 9.

Note: The supplied 15 feet of 2 conductor wire

has one end of each conductor connected to the

gas valve circuit and the other end of each

conductor placed loose inside the bottom com-

partment.

Caution: Label all wires prior to disconnec-

tion when servicing controls. Wiring errors

can cause improper and dangerous opera-

tion. Verifyproperoperationafterservicing.

3. Removethe coverplate'sknockoutandthen

feed the power supply wire through the knock-

out opening and into the unit junction box.

Refer to Section A for millivolt appliances and

Section B for electronic appliances. The gas

valve is set in place and pre-wired at the

factory on both models.

9. If an optional control switch is installed,

turn the appliance-mounted ON/OFF burner

control switch to the OFF position.

4. Connect the black power supply wire to the

lower outlet's red pigtail lead and the white

power supply wire to the common terminal of

the outlet as shown in Figure 37.

A. Millivolt Wiring (See Figure 36 ) –

10. After the wiring is complete, replace the

cover plate.

1. Appliance-mounted ON/OFF burner control

switch (rocker switch) is factory installed be-

hind the bottom panel. Optional wall-mounted

switch, thermostat, or one of the optional

remote control kits may also be used.

5.Connectthegroundsupplywiretothepigtail

lead attached to outlet's green ground screw.

Note: No batteries to be installed in the

battery holder until a power outage, or if the

appliance is to be operated solely with two

(2) "D" batteries.

6. Appliance-mounted ON/OFF burner control

switch (rocker switch) is factory installed be-

hind the bottom panel.

2. If wall-mounted ON/OFF control or thermo-

stat is selected mount it in a convenient loca-

tion on a wall near the fireplace.

120 VAC

INTERMITTENT ELECTRONIC WIRING DIAGRAM

SPARK TO PILOT IGNITOR

3. Wire the control switch within the millivolt

controlcircuit usingthe15feetof2conductor

wire supplied with the unit.

Note: The supplied 15 feet of 2 conductor

wire has one end of each conductor con-

nected to the gas valve circuit and the other

end of each conductor placed loose inside

the bottom compartment.

IGNITOR MODULE

JUNCTION BOX

BLACK (IGNITOR)

BLACK (SENSOR)

TRANSFORMER 3V

Caution: Do Not connect the optional wall

switch to a 120V power supply.

WIRING DIAGRAM MILLIVOLT GAS VALVES

THERMOPILE

BLACK

TO WALL

SWITCH OR

THERMOSTAT

APPLIANCE- MOUNTED

ON/OFF SWITCH

ORANGE (THTP)

BLACK (TP)

BATTERY BACK-UP

TP-TH

T O P I L

RED

GREEN (TH)

BROWN

GAS VALVE

BK/W(1)

BROWN

Figure 37

WALL-MOUNTED ON/OFF SWITCH (OPTIONAL)

THERMOSTAT (OPTIONAL)

Figure 36

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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IMPORTANT: Ground supply lead must

be connected to the wire attached to the

green ground screw located on the out-

let box. See Figure 37. Failure to do so

will result in a potential safety hazard.

The appliance must be electrically

groundedinaccordancewithlocal codes

or, in the absence of local codes, the

National Electrical Code, ANSI/NFPA70-

(latest edition). (In Canada, the current

CSA C22-1 Canadian Electrical Code.)

Gas Line Access Plate Not Installed

At The Factory. It Is Included In

The Installation Instruction Bag.

Step 5. CONNECTING GAS LINE

Gas

Supply

Line

ON/OFF

Switch

All codes require a shut-off valve mounted in

the supply line. The orientation of the shut-

off valve should face the front, as shown in

Figure 39. Figure 38 illustrates the method

for connecting the gas supply.

Gas Valve

Piezo Ignitor

Shut-Off Valve

(Orientation

Air Shutter

Adjustment Arm

As Shown)

Figure 39

The flex-line method is acceptable in the U.S.,

however,Canadianrequirementsvarydepend-

ing on locality. Installation must be in compli-

ance with local codes.

These appliances come from the factory with

the gas line access plate removed to provide

full access to the end of the gas flex line.

Secure all joints tightly using appropriate

tools and sealing compounds (ensure pro-

pane resistant compounds are used in pro-

pane applications).

As designed, the glass door needs to be

opened to access the open gas access area.

Route a hard pipe from the left to a spot

directly below the access plate opening.

Theseappliancesareequippedwithagasflex

line for use in connecting the unit to the gas

line. A gas flex line is provided to aid in

attaching the direct vent appliance to the gas

supply.

Turn on gas supply and test for gas leaks,

using a gas leak test solution (also referred to

as bubble leak solution).

Note: Usingasoapywater solution(50%dish

soap, 50% water) is an effective leak test

solution but it is not recommended, because

the soap residue that is left on the pipes/

fittingscanresultincorrosionovertime. Never

use an open flame to check for leaks.

Bring the shutoff valve on the end of the flex

line over to the hard pipe and tighten with

wrenches from above through the firebox

opening.

The gas flex line can only be used where local

codes permit. See Figure 38 for flex line

description. The flex line is rated for both

natural and propane gas. A manual shut off

valve is also provided with the flex line.

If required, access the valve by removing the

lower control compartment panel (see Figure

39 ) by lifting and pulling the panel forward.

The millivolt and electronic control valve has a

3/8" (10 mm) NPT thread inlet port.

A. Light the appliance (refer to the lighting

instructions label in the control compartment

or in the Homeowner's Care and Operation

Instructions).

The gas control valve is located in the lower

control compartment.

B. Brush all joints and connections with the

gas leak test solution to check for leaks. If

bubbles are formed, or gas odor is detected,

turn the gas control knob to the “OFF” posi-

tion. Either tighten or refasten the leaking

connection and retest as described above.

Flex Line Connector

3/8" NPT x 3/8"

Flare Fitting

1/2" x 3/8" Flare

Shut-Off Valve

Gas

Stub

Gas

Valve

C. When the gas lines are tested and leak free,

be sure to rinse off the leak testing solution.

3/8" Flex Tubing

D. When the gas lines are tested and leak free,

observe the individual tongues of flame on the

burner. Make sure all ports are open and

producing flame evenly across the burner. If

any ports are blocked, or partially blocked,

clean out the ports.

Figure 38 - GAS CONNECTION

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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Millivolt Appliance Checkout

Step 6. INSTALLING THE LOGS, GLOW-

ING EMBERS AND VOLCANIC STONES

Step 8. INSTALLING THE GLASS DOOR

AND OPTIONAL HOOD

The pilot flame should be steady, not lifting or

floating. Flame should be blue in color with

traces of orange at the outer edge.

Remove the gas line access plate and gasket

from the provided plastic bag and install them

over the opening, using the provided screws

(4) as shown in Figure 39.

To access the glass door securing latches,

first open the lower control compartment

door (Figure 42 ) by lifting and pulling the

bottom panel forward.

The top 3/8" (10 mm) at the pilot generator

(thermopile) and the top 1/8" min (tip) of the

quick drop out thermocouple should be en-

gulfed in the pilot flame.

Retrieve the glass door. Visually inspect the

gasket on the backside of the frame. Gasket

surface must be clean, free of irregularities and

seated firmly.

Refer to Figure 43 and loosen the set screw

for the venturi air shutter. Manually actuate

the air shutter through several cycles. Set the

air shutter to 3/32" before placing the logs.

The flame should project 1" (25 mm) beyond

the hood at all three ports (Figure 40 ). Re-

place logs if removed for pilot inspection.

Positionthedoorinfrontofthefireboxopening

with the bottom of the door held away from the

fireplace (Figure 42 ). Hook the top flange of

thedoorframeoverthetopofthefireboxframe.

Let the bottom of the door frame swing gently

in towards the fireplace ensuring that the gas-

ket seats evenly as the door frame draws shut.

Fasten the two latches located underneath the

firebox floor to the door's vee-flange. Close

both the latches securely.

The logs are packaged in a carton located

within the firebox. One plastic bag of glowing

embers and volcanic stones are located in the

bottom compartment. Refer to the Log Set

Placement Supplement for detailed place-

ment instructions for the logs, glowing em-

bers and volcanic stones.

To light the burner; turn “ON” the remote wall

switch and rotate the gas valve control knob

counterclockwise to the “ON” position (“ON”

will be at the bottom side of the valve).

Hood Ignitor Rod

MILLIVOLT

Proper log and twig placement is critical to

encourage outstanding flame appearance and

prevent sooting. These fires are designed to

provide a rich orange/red glow on the logs.

Ensure the bottom of the rear log is fully seated

and pulled as far forward as the pins will al-

low. Refer to the Log Set Placement

Supplement for detailed instructions.

Thermocouple

If desired, install the optional hood. Note the

location of the three clips inside the top air

channel above the door. The clips are equally

spaced on the top surface of the air channel

opening. Use a screwdriver to open the clips

slightly if needed. Engage the back edge of the

eyebrow into the clips to secure.

3/8" Min

(9 mm)

Pilot

Nozzels

Note: Logsetupisbydesignasymmetric. The

fire is intentionally positioned off center to

provide a natural fire look.

Thermopile

Figure 40

Step 7. CHECKINGAPPLIANCEOPERATION

Electronic Appliance Checkout

Withgaslineinstalledruninitialsystemcheck-

out before closing up the front of the unit.

Follow the pilot lighting instructions provided

in the Homeowner's Care and Operation In-

structions. For piezo ignitor location see Fig-

ure 39 on page 23 (millivolt appliances only).

To light the burner, turn ‘ON’ the unit mounted

On/Off switch or the optional remote wall

switch. Ensure the ignitor lights the pilot. The

pilot flame should engulf the flame rod as

shown in Figure 41.

Burner

Assembly

Note: Lighting Instructions are also found on

the literature tag tied to the gas piping next to

the gas valve. To access the tag, open the

lowercontrolcompartmentdoor(Figure39 on

page 23 ) by pulling the panel forward.

ELECTRONIC

Door

Sensor

Ignitor

Pilot

Hood

Assembly

Gas Line Access Panel

Bottom Panel

When first lighting the appliance, it will take

a few minutes for the line to purge itself of

air. Once purging is complete, the pilot and

burner will light and operate as indicated in

the instruction manual. Subsequent lighting

of the appliance will not require such purg-

ing. Inspect the pilot flame (remove logs, if

necessary, handling carefully).

Figure 42 -

INSTALLING THE GLASS DOOR

WARNING: HANDLE THIS GLASS WITH

EXTREME CARE! THE GLASS PANEL IS

SUSCEPTIBLE TO DAMAGE — DO NOT

SCRATCH WHILE HANDLING OR WHILE

RE-INSTALLING THE GLASS DOOR

FRAME.

Figure 41

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The adjustment rod and associated adjustable

air shutter is patented technology. Flame ad-

justments can be made quickly and accurately

to taste without the need of disassembling the

appliance and waiting for 30 minutes after

each adjustment.

WARNING: DO NOT OPERATE APPLI-

ANCE WITH THE GLASS FRONT RE-

MOVED, CRACKED OR BROKEN. RE-

PLACEMENT OF THE GLASS SHOULD

BEDONEBYALICENSEDORQUALIFIED

SERVICE TECHNICIAN.

CAUTION: THE AIR SHUTTER DOOR

AND NEARBY APPLIANCE SURFACES

ARE HOT. EXERCISE CAUTION TO

AVOID INJURY WHILE ADJUSTING

FLAME APPEARANCE.

Propane models may exhibit a flame pattern

that may candle or appear stringy. If this is

problematic or persists as the appliance is

continually operated, adjust the air shutter

closedasdescribedinthepreviousparagraphs.

Operatetheapplianceforaperiodoftimeasthe

effect diminishes, ensuring that the appliance

does not develop sooty flames.

To adjust the flame, rotate the lever arm up or

down (rod located in the lower control area).

Position the air shutter to the factory setting as

shown in the table in Figure 43. Allow the

burner to operate for at least 20 minutes.

Step 9. BURNER ADJUSTMENTS

Flame Appearance and sooting

Proper flame appearance is a matter of taste.

Generally, mostpeoplepreferthewarmglowof

a yellow to orange flame. Appliances operated

with air shutter openings that are too large will

exhibit flames that are blue and transparent.

These weak, blue and transparent flames are

termed anemic. If the air shutter opening is too

small sooting may develop.

Air Shutter Rod

Air

Adjustment

Arm

When satisfied that the appliance operates

properly, proceed to finish the installation.

Leave the control knob in the ON position and

theremoteswitchOFF.Closethelowercontrol

compartment door.

Venturi

Sooting is indicated by black puffs developing

at the tips of very long orange flames. Sooting

results in black deposits forming on the logs,

appliance inside surfaces and on exterior sur-

facesadjacent tothevent termination. Sooting

is caused by incomplete combustion in the

flames and lack of combustion air entering the

air shutter opening. To achieve a warm yellow

to orange flame with an orange body that does

notsoot, theshutteropeningmustbeadjusted

between these two extremes.

FINISHING REQUIREMENTS

Wall Details

Valve

Complete finished interior wall. To install the

appliance facing flush with the finished wall,

positionframeworktoaccommodatethethick-

ness of the finished wall (Figure 44 )

MAIN BURNER

FACTORY SHUTTER OPENING SETTING

Natural Gas Propane Gas

Models

inches (mm) inches (mm)

MPLDV30 3/32 (2.38)

MPLDV35 1/16 (1.6)

MPLDV40 1/4 (6.35)

MPLDV45 1/4 (6.35)

3/16 (4.76)

1/4 (6.35)

3/8 (9.5)

This Area Must

Combustible

Remain Clear

Finished Wall

of Combustible

Materials

No smoke or soot should be present. These

logs are designed to be involved in the fire.

Flameswillimpingethetoptipsoftherightand

left logs.

1/2 (12.7)

3-1/2" Min

(89 mm)

Combustible

materials not

allowed

Figure 43

If the logs are properly positioned and sooting

conditions exist, the air shutter opening on the

main burner tube should be adjusted. Normally,

the more offsets in the vent system, the greater

the need for the air shutter to be opened further.

below this

point on

the face of the

appliance.

CAUTION: DO NOT BEND THE AIR SHUTTER

ROD. MAKESURETHEAIRSHUTTERMOVES

WHEN THE LEVER ARM IS OPERATED.

Top of

Appliance

Spacer

10" Min

(254 mm)

Burner Adjustment

Note: When first operating the air shutter

adjustment lever arm observe the air shutter.

If it is not moving, open the glass, ensure the

air shutter screw is loose and adjust by hand

through a couple of cycles, to break the adhe-

sion of paint, if required. Close door and

adjust with the lever as needed.

Top of Door Frame

Optional Hood

WARNING: AIR SHUTTER ADJUST-

MENT SHOULD ONLY BE PER-

FORMED BY A QUALIFIED PROFES-

SIONAL SERVICE TECHNICIAN.

Figure 44

A hearth extension is not required with this

appliance. If ahearthextensionisused, donot

block the lower control compartment door.

Any hearth extension used is for appearance

onlyanddoesnothavetoconformtostandard

hearth extension installation requirements.

Observe the flame continuously. If it appears

weak or sooty as previously described, adjust

the air shutter by rotating the adjustment arm

upordown(refertoFigure39)untiltheflame

appearance is as desired.

IMPORTANT:ENSURETHATTHEFRONT

GLASSPANELISINPLACEANDSEALED

DURING ADJUSTMENT.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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Note: Combustible wall finish materials and/or surround materials must not be allowed to be placed in direct contact with the area defined

by the appliance front face (black sheet metal). Never allow combustible materials to overlap the appliance front face. See Figure 44

on page 25. Combustible mantle materials may be placed in front of non-combustible facing materials, as shown in Figure 45.

Non-combustible materials, such as surrounds and other appliance trim, may be installed on the appliance front face with these exceptions: they must

not cover any portion of the glass or hood; they may cover any portion of the top radiant panel or the air gaps surrounding the top radiant panel up

to the installed hood.

Vertical installation clearances to combustible mantels vary according to the depth of the mantel. See Figure 45. 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 hood.

Combustible materials may project beyond the

sides of the fireplace opening as long as they

are kept within the shaded areas illustrated in

Figure 46.

MANTEL CLEARANCES

Inches (mm)

12 (305) MANTEL

10 (254) MANTEL

8 (203) MANTEL

6 (152) MANTEL

4 (102) MANTEL

2 (51) MANTEL

Combustible Materials

Allowed In Shaded

Top View Of

Area “ Safe Zone”

Fireplace

12"

(457)

45°

(406)

17"

TOP OF

APPLIANCE

(356)

(305)

Min. Distance

To Protected

Side Wall

8-1/4"

(254)

Side

Wall

(203)

Side

Wall

Min. Distance To

Unprotected Side Wall

14"

Figure 46

Figure 45

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

holesandotheropeningsshouldbecaulkedorstuffedwithunfacedfiberglassinsulation. Incoldclimates,ifthefireplaceisbeinginstalledonacement

slab, a sheet of plywood or other raised platform can be placed underneath to prevent conducting cold up into the room. It also helps to sheetrock

inside surfaces and tape for maximum air tightness and caulk firestops.

INSTALLATION ACCESSORIES

Listed Secure Flex™Components

Listed Secure Vent™Components

Cat.

No.

Model

No.

Description

Cat.No.

Model No. Description

**94L10 SV4.5HTSS Horizontal Small Square

Termination with

10K81 SFMP

Mil Pac Black Hi-Temperature

Sealant

Firestop/Spacer (96K80)

and Adapter (74L61)

89L40 SFMP-12 Mil Pac Black Hi-Temperature

Sealant - Bulk Pack 12

91L66 SF-GC4-6 Gear Clamp 4.5in. (114 mm) for

**98L27 SV4.5HTSSL Horizontal Small Square-

Long Termination with

Flex (6 pieces)

91L67 SF-GC7-6 Gear Clamp 7.5 in. (190.5 mm)

for Flex (6 pieces)

Firestop/Spacer (96K80)

and Adapter (74L61)

H2248

SF4.5HF Firestop/Spacer - 10 Pack

**May be used with 30" and 35" models only.

Horizontal (3-1-1 spacing)

H2249

SF4.5VF Firestop/Spacer - 10 Pack

Vertical (1-1-1 spacing)

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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INSTALLATION ACCESSORIES CONTINUED

Listed Secure Vent™Components

Model No. Description

Listed Secure Flex™Components

Cat.

No.

Model

No.

Cat.No.

Description

H1968

SV4.5HT-2 Horizontal Square Termination

with Firestop/Spacer (96K80)

and Adapter (74L61)

These termination kits include firestop/spacer, gear clamps and flex adapter.

H1969 SF4.5HT-2 Horizontal Square Termination

without Flex

77L87 SFKIT12

77L88 SFKIT18

77L89 SFKIT24

77L90 SFKIT36

77L91 SFKIT48

56L74 SFVT30

Flex Square Term. with 12 in.

(305 mm of *compressed Flex

Flex Square Term. with 18 in.

(457 mm) of *compressed Flex

Flex Square Term. with 24 in.

(610 mm) of *compressed Flex

Flex Square Term. with 36 in.

(914 mm) of *compressed Flex

Flex Square Term. with 48 in.

(1219 mm) of *compressed Flex

Vertical Termin. for Flex (flat to

6/12) with Flex Adapter, section

of rigid vent, roof support collar

assembly, roof flashing and

storm collar.

H2152

SV4.5CGV-1 Vertical Termination

H4687

H4716

SV4.5CTS Chase Top Term. Square

SV4.5CTS-B Chase Top Term. Square, Blk

H4717 SV4.5CTS-TC Terra Cotta Termination

77L70

SV4.5L6 6 inch (152 mm) Vent Section

12 inch (305 mm) Vent

Section

77L71

SV4.5L12

24 inch (610 mm) Vent

77L72

77L73

77L74

SV4.5L24

Section

36 inch (914 mm) Vent

SV4.5L36

Section

48 inch (1219 mm) Vent

SV4.5L48

Section

56L75 SFVT45

Vertical Termin. for Flex (6/12 to

12/12) with Flex Adapter section

of rigid vent, roof support collar

assembly, roof flashing and

storm collar.

77L75

77L76

SV4.5LA Telescopic Section

SV4.5E45 45 Degree Elbow

60L10 SF-18

98K03 SF-12

18 ft. (5.49 m) *compressed Flex

12 ft.(3.66 m) *compressed Flex

77L77

SV4.5E90 90 Degree Elbow

Cat. No. Model No. Description

These termination kits include firestop/spacer, gear clamps and flex adapter.

The following flashings come packaged with a storm collar.

77L78

77L79

77L80

77L81

SV4.5F Flat Roof Flashing

**94L09 SF-HTSS

Horizontal Small Square

Termination without Flex

SV4.5FA 1/12 to 7/12 Adjust. Flashing

SV4.5FB 7/12 to 12/12 Adjust. Flashing

SV4.5SC6 Storm Collars (6 collars/box)

**94L04 SFKIT12SS Flex Small Square Term. with

12 in. (305 mm of

*compressed Flex

**94L05 SFKIT18SS Flex Small Square Term. with

H6183

H6184

H2247

96K93

SV4.5HF5 Firestop/Spacer Horizontal

(5-1-1 spacing)

SF4.5HF5 Firestop/Spacer Flex Horizontal

(5-1-1 spacing)

SV4.5VF Firestop/Spacer - 10 Pack

Vertical (1-1-1 spacing)

SV4.5SU Support Strap

18 in. (457 mm) of

*compressed Flex

**94L06 SFKIT24SS Flex Small Square Term. with

24 in. (610 mm) of

*compressed Flex

**94L07 SFKIT36SS Flex Small Square Term. with

36 in. (914 mm) of

*compressed Flex

**94L08 SFKIT48SS Flex Small Square Term. with

96K94

SV4.5RSA Attic Insulation Shield

SV4.5SP Support Plate

48 in. (1219 mm ) of

*compressed Flex

96K92

87L02

Cat. No. Model No. Description

H1988 CTSA-33

H1985 CTSO-33

H1987 CTSO-44

H1986 CTSO-46

H5820 4.5HTSK

Chase Top Shroud Kit,

Arch Top 3 x 3

Chase Top Shroud Kit,

Open Top 3 x 3

Chase Top Shroud Kit,

Open Top 4 x 4

Chase Top Shroud Kit,

Open Top 4 x 6

SV4.5 Termination Guard

HGS

99L03 SV4.5HRK36 Horizontal Riser Kit 36"

99L02 SV4.5HRK14 Horizontal Riser Kit 14"

Termnation Shroud Kit

*All compressed flex vents can be expanded up to two times.

**May be used with 30" and 35" models only.

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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GAS CONVERSION KITS

WARNING: THIS CONVERSION KIT SHALL BE AVERTISSEMENT: CET ÉQUIPEMENT DE CONVERSION

INSTALLED BY A QUALIFIED SERVICE AGENCY IN

SERAINSTALLÉPARUNEAGENCEQUALIFIÉEDESERVICE

ACCORDANCE WITH THE MANUFACTURER'S IN- CONFORMÉMENTAUXINSTRUCTIONSDUFABRICANTET

STRUCTIONS AND ALL APPLICABLE CODES AND TOUTES EXIGENCES ET CODES APPLICABLES DE

REQUIREMENTS OF THE AUTHORIZED HAVING

L'AUTORISÉSAVOIRLAJURIDICTION. SIL'INFORMATION

JURISDICTION. IF THE INFORMATION IN THESE DANS CETTE INSTRUCTION N'EST PAS SUIVIE

INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A EXACTEMENT, UN FEU, EXPLOSION OU PRODUCTION DE

FIRE, EXPLOSION OR PRODUCTION OF CARBON

PROTOXYDEDECARBONEPEUTRÉSULTERLEDOMMAGES

MONOXIDE MAY RESULT CAUSING PROPERTY CAUSER DE PROPRIÉTÉ, PERTE OU BLESSURE

DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. PERSONNELLEDEVIE. L'AGENCEQUALIFIÉEDESERVICE

THE INSTALLATION IS NOT PROPER AND COM-

EST ESPONSABLE DE L'INSTALLATION PROPRE DE CET

PLETEUNTILTHEOPERATIONOFTHECONVERTED ÉQUIPMENT. L'INSTALLATION N'EST PAS PROPRE ET

APPLIANCE IS CHECKED AS SPECIFIED IN THE COMPLÉTE JUSQU'À L'OPÉRATION DE L'APPAREIL

OWNERINSTRUCTIONSSUPPLIEDWITHTHEKIT.

CONVERTIESTCHÉQUESUIVANTLESCRITÈRESÉTABLIS

THE QUALIFIED SERVICE AGENCY PERFORMING DANS LES INSTRUCTIONS DE PROPRIÉTAIRE

THIS INSTALLATION ASSUMES RESPONSIBILITY PROVISIONNÉES AVEC L'ÉQUIPEMENT.

FOR THIS CONVERSION.

In Canada:

Millivolt Appliances

Natural To Propane Gas Conversion Kit

THE CONVERSION SHALL BE CARRIED OUT

INACCORDANCEWITHTHEREQUIREMENTS

OF THE PROVINCIAL AUTHORITIES HAVING

JURISDICTION AND IN ACCORDANCE WITH

THE REQUIREMENTS OF THE CAN1-B149.1

AND .2 INSTALLATION CODE.

Step 4. SIT Systems - Refer to Figure 48 on

page 29 and the instructions provided with

the kit. Using a Torx T20, remove and discard

thethreepressureregulatormountingscrews.

Remove the pressure regulator, spring, pop-

pet, diaphragm and bushing. Discard all

removed components.

Models No. Unit Type Catalog No.

MPLDV30

MPLDV35

MPLDV40

MPLDV45

MPLDV30

MPLDV35

MPLDV40

MPLDV45

millivolt

H6163

H6975

85L59

85L69

H6166

H6973

H6168

H6169

millivolt

LA CONVERSION DEVRA ÊTRE EFFECTUÉE

CONFORMÉMENT AUX RECOMMANDATIONS

DES AUTORITÉS PROVINCIALES AYANT

JURIDICTION ET CONFORMÉMENT AUX

EXIGENCES DU CODE D'INSTALLATION CAN1-

B149.1 ET.2.

electronic

electrnoic

Ensure the rubber gasket installed on the back

of the replacement pressure regulator is prop-

erly positioned and install the new pressure

regulator using the new screws supplied with

the kit. Tighten screws to 25 In. lb. torque.

Gas conversion kits are available to adapt your

appliance from the use of one type of gas to the

useofanother. Thesekitscontainalltheneces-

sary components needed to complete the task

including labeling that must be affixed to en-

sure safe operation.

Burner Assembly

Propane to Natural Gas Conversion Kit

Model No.

MPLDV30

MPLDV35

MPLDV40

MPLDV45

MPLDV30

MPLDV35

MPLDV40

MPLDV45

Unit Type Catalog No.

millivolt

H6165

H6968

H6177

85L62

H6170

H6974

H6172

H6173

millivolt

Kitpartnumbersarelistedhere andthefollowing

steps detail the conversion procedure.

Orifice

Gas Valve

millivolt

Assembly

electronic

Step 1. Turn off the gas supply to the appliance.

Step 2. Carefully remove the logs. Exercise

care so as not to break the logs.

Step 3. Refer to Figure 47.

Remove the burner assembly with attached

venturi tube.

Air Adjustment

Arm

Figure 47

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Pressure-Tap

(Inlet)

Pilot Stage

Terminal

Pilot Gas

Outlet

Pressure

Regulator

Ground

(TP)

P I L O T

Supply Gas

Inlet

Remove

These

Components

Gas Outlet

To Burner

Figure 48

Step 5. Attach manometer to the manifold

side pressure test fitting and verify manifold

pressurereads3.5incheswatercolumn(0.87

kPa) for natural gas, and 10.0 inches water

column (2.49 kPa) for propane gas.

Burner Stage

Terminal

Regulator

Mounting Screw

Pressure-Tap

(Manifold)

Figure 50

Step 6. Refer to Figure 49 and remove the

pilot hood assembly to access the hexed pilot

orifice. Remove and replace the orifice with

the one provided with the kit.

ELECTRONIC

Orifice size

Model No.

Sensor

Ignitor

Pilot

Hood

Natural Propane

#61

0.070"

MPLDV-30

MPLDV-35

MPLDV-40

MPLDV-45

(0.039")

#45

0.048"

(0.082")

#41

#54

(0.046") (0.055")

Pilot

Orifice

#40

#53

(0.098") (0.595")

Figure 49

Note: If the ignitor is damaged, a replacement

kit is available, order Catalog Number 87L54.

Electronic Appliances

Figure 51

Step 7. Dexen Electronic Valves -

Figure 52

See Figure 50 and the instructions provided

with the kit. Remove and discard the two

pressure regulator mounting screws. Re-

move the pressure regulator and diaphragm.

Discard all removed components. Ensure the

provided diaphragm is installed properly onto

thereplacement pressureregulator andinstall

the new pressure regulator using the new

screws supplied with the kit. Tighten screws.

All Models

Step 9. Reassemble the remaining compo-

nents by reversing the procedures outlined in

theprecedingsteps. Usepipejointcompound

orTeflontapeonallpipefittingsbeforeinstall-

ing (ensure propane resistant compounds are

used in propane applications, do not use pipe

joint compounds on flare fittings).

Step 8. (Refer to Figure 47 on page 28 )

A. Remove the orifice from the manifold and

replace it with the one provided in the kit. See

the following table for orifice sizes for natural

andpropanemodels. Figure52 illustratesthe

orifice.

See Figure 51 and replace the pilot orifice

as follows: Remove pilot hood assembly to

access the phillipped pilot orifice. Remove

and replace the orifice with the one pro-

vided with the kit. Exercise extreme care

to prevent damage to or breakage of the

ignitor assembly.

B. Retrievetheburnerandslidetheventuritube

over the orifice. Set the shutter adjusting

opening as shown in Figure 43, page 25.

Step 10. Attach the conversion label provided

in the conversion kit to the rating plate on the

appliance.

Step 11. Turn on gas supply and test for gas

leaks.

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Lennox Hearth Products reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and also to discontinue colors, styles and products.

Consult your local distributor for fireplace code information.

1110 West Taft Avenue • Orange, CA 92865

P/N 850,043M REV. F 09/2008

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