Lennox ENVY, ENVY CD Installation Instructions Manual

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INSTALLATION INSTRUCTIONS

AVERTISSEMENT : Assurez-vous de bien suivre les instructions données dans cette notice pour réduire au minimum le risque d’incindie ou d’explosion ou pour éviter tout dommage matériel, toute blessure ou la mort.

WARNING: If the information in these instructions is not followed exactly, a ﬁre or explosion may result, causing property damage, personal injury, or death.

WARNING /AVERTISSEMENT/AVISO

• HOT GLASS WILL CAUSE BURNS.

• DO NOT TOUCH GLASS UNTIL COOLED.

• NEVER ALLOW CHILDREN TO TOUCH GLASS.

• UNE SURFACE VITRÉE CHAUDE PEUT CAUSER DES BRÛLURES.

• LAISSER REFROIDIR LA SURFACE VITRÉE AVANT D'Y TOUCHER.

• NE PERMETTEZ JAMAIS À UN ENFANT DE TOUCHER LA SURFACE VITRÉE.

• EL VIDRIO CALIENTE CAUSARÁ QUEMADURAS.

• USTED DEBE NUNCA TOCAR EL VIDRIO CALIENTE.

• LOS NIÑOS DEBEN NUNCA TOCAR EL VIDRIO.

- Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any other appliance.

- WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any

phone in your building.

• Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire

department.

- Installation and service must be performed by a qualified installer, service agency or the gas supplier.

- Ne pas entreposer ni utilizer d’essence ni d’autres vapeurs ou liquides inﬂammables dans le voisinage de cet appareil ou de tout autre appareil.

- QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :

• Ne pas tenter d’allumer d’appareil.

• Ne touchez à aucan interrupteur. Ne pas vous servir des

téléphones se trouvant dans le bâtiment où vous trouvez.

• Appelez immédiatement votre fournisseur de gaz depuis

un voisin. Suivez les instructions du fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz,

appelez le service des incindies.

- L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien qualiﬁé ou par le fournisseur de gaz.

ENVY and ENVY CD Direct-Vent Gas Fireplaces

P/N 506023-17 Rev. A 08/2013

This manual is one of a set of two supporting this product. Refer to P/N 506025-09 for Care and Operation Instructions.

Ce manuel est disponible en francais, simplement en faire la demande. Numéro de la pièce 506223-74.

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

INSTALLATEUR : Laissez cette notice avec l’appareil. CONSOMMATEUR : Conservez cette notice pour consultation ultérieure.

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

MODELS

NV35IN

NVCD35IN

Report No. G100513653 PRT-001

Please read and understand these instructions before starting installation.

NV40IN

NVCD40IN

NV45IN

NVCD45IN

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

TABLE OF CONTENTS

Packaging.............................2

Introduction General Information Requirements for the Commonwealth

of Massachusetts .......................4

Cold Climate Insulation Manufactured Home Requirements Location Vent Termination Clearances Minimum Clearances to Combustibles

Typical Installation Sequence . . . . . . . . . . . . .9

Pre-Installation Steps Construct the Appliance Framing Route the Gas Supply Line to the Appliance ..11 Install the Vent System and

Exterior Termination ...................11

Select Venting System—

Horizontal or Vertical...................13

Vent Section Length Vertical or Horizontal Venting Using Secure

Flex™ Venting Kits and Components ......22

Complete the Field Wiring Connect the Gas Supply Verify Correct Appliance Operation Contemporary Fireplaces Only: Install the Contemporary Floor and Contemporary Glass Media Install the Firebox Liners Traditional Fireplaces Only: Install the Logs, Decorative Volcanic Stone, and Glowing Embers Install the Glass Door Adjust the Burner to Ensure Proper

Flame Appearance.....................28

Finishing Requirements Attach the Safety-in-Operation Warnings ...31 Installation Accessories Gas Conversion Kits

...........................2

.....................2

..................5

.........5

..............................5

..............6

......8

...................9

..........9

....................14

...............23

.................25

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................26

...................27

..................28

.................29

.................32

....................35

........26

..............26

PACKAGING

The assembled vented gas ﬁreplace heater is packaged with:

• Traditional models only: (1 set) Logs (Packaged in a carton inside the ﬁrebox)

• Traditional models only: (1 bag) Volcanic Stone

• Literature Kit (Envelope containing Care and Operation Instructions, Installation Instructions, Safety-In-Operation Warning Labels, Warranty)

• (1) U-Shaped Vent Restrictor (Attached to Literature Kit envelope)

INTRODUCTION

ENVY replaces are designed to operate

on natural or propane gas. An electronic intermittent pilot ignition system provides safe, efﬁcient operation. External electrical power is required to operate these units. In the event of a power outage, four (4) AA batteries provide backup power for appliance operation (excluding blower).

These vented gas ﬁreplace heaters are sealed combustion, aircirculating gas ﬁreplaces designed for residential applications.

Approved Vent Components

These ﬁreplaces are designed, tested and listed for operation and installation with the following vent components only:

• Secure Vent® Direct-Vent System Components,

• Secure Flex® Flexible Vent Components, and

• Z-FLEX® Model GA Venting Systems listed to UL1777 and ULCS635 manufactured by Flexmaster Canada Limited.

Use only the correct size venting (4 1/2 in. inner and 7 1/2 in. outer).

These approved vent system components are labeled for identiﬁcation. DO NOT use any other manufacturer’s vent components with these appliances.

GENERAL INFORMATION

WARNING

Young children should be carefully supervised when they are in the same room as the appliance. Toddlers, young children and others may be susceptible to accidental contact burns. A physical barrier is recommended if there are at-risk individuals in the house. To restrict access to a ﬁreplace or stove, install an adjustable safety gate to keep toddlers, young children and other at risk individuals out of the room and away from hot surfaces.

AVERTISSEMENT

Les jeunes enfants devraient être surveillés étroitement lorsqu’ils se trouvent dans la même pièce que l’appareil. Les tout petits, les jeunes enfants ou les adultes peuvent subir des brûlures s’ils viennent en contact avec la surface chaude. Il est recommandé d’installer une barrière physique si des personnes à risques habitent la maison. Pour empêcher l’accès à un foyer ou à un poêle, installez une barrière de sécurité; cette mesure empêchera les tout petits, les jeunes enfants et toute autre personne à risque d’avoir accès à la pièce et aux surfaces chaudes.

NOTE: Children and adults should be alerted

to the hazards of high surface temperature and should stay away to avoid burns or clothing ignition.

Please read and understand these instructions before beginning your installation.

Remarqué : Les enfants et les adultes

devraient être infor-més des dangers que posent les températures de surface élevées et se tenir à distance aﬁn d’éviter des brûlures ou que leurs vêtements ne s’enﬂamment.

DO NOT ATTEMPT TO ALTER OR MODIFY THE CONSTRUCTION OF THE APPLIANCE OR ITS COMPONENTS. ANY MODIFICATION OR ALTERATION MAY VOID THE WARRANTY, CERTIFICATION, AND LISTINGS OF THIS UNIT.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Codes and Standards

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualiﬁed installer, service agency or the gas supplier.

WARNING

Failure to comply with these installation instructions will result in an improperly installed and operating appliance, voiding its warranty. Any change to this appliance and/or its operating controls is dangerous.

WARNING

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

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AVERTISSEMENT

On ne devrait pas placer de vêtements ni d’autres matières inflammables sur l’appareil ni à proximité.

WARNING

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

Failure to position the parts in accordance with these diagrams or failure to use only parts speciﬁcally approved with this appliance may result in property damage or personal injury.

Risque de dommages ou de blessures si les pièces ne sont pas installées conformément à ces schémas et ou si des pièces autres que celles spéciﬁquement approuvées avec cet appareil sont utilisées.

NOTE: Installation and repair should be

done by a qualiﬁed service person. The appliance should be inspected before use and at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etcetera. It is imperative that control compartments, burners and circulating air passageways of the appliance be kept clean.

Remarqué : L’installation et la réparation devrait être conﬁées à un technicien qualiﬁé. L’appareil devrait faire l’objet d’une inspection par un technicien professionnel avant d’être utilisé et au moins une fois l’an par la suite. Des nettoyages plus fréquents peuvent être nécessaires si les tapis, la literie, et cetera produisent une quantité importante de pous-sière. Il est essentiel que les compartiments abritant les commandes, les brûleurs et les conduits de circulation d’air de l’appareil soient tenus propres.

WARNING

AVERTISSEMENT

These appliances comply with National Safety Standards and are tested and listed by ETL/Intertek. (Report No. G100513653 PRT-001) to ANSI Z21.88 (in Canada, CSA-2.33), and CAN/ CGA-2.17-M91 in both USA and Canada, as vented gas ﬁreplace heaters.

These appliances are listed by ETL/ Intertek for installation in bedrooms and manufactured homes.

The installation must conform to local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/ NFPA 54—latest edition (In Canada, the current CAN/CSA-B149.1 installation code).

The appliance, when installed, must be electrically grounded and wired in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70—latest edition, or the Canadian Electrical Code, CSA C22.1—latest edition.

Provide adequate clearances around air openings and adequate accessibility clearance for service and proper operation. Never obstruct the front or back openings of the appliance.

These appliances are designed to operate on natural or propane gas only. The use of other fuels or combination of fuels will degrade the performance of this system and may be dangerous.

It is advisable to have an alternate primary heat source when installed in a dwelling.

These appliances must not be connected to a chimney or ﬂue serving a separate solid fuel burning appliance.

ENVY replaces come standard with a

remotely-modulated gas valve. Flame appearance and heat output cannot be controlled at the gas valve. The BTU Input for these appliances is shown in Table 1.

AVERTISSEMENT

Tout écran ou protecteur retiré pour permettre l’entretien de l’appareil doit être remis en place avant de mettre l’appareil en marche.

WARNING

Improper installation or use of this appliance can cause serious injury or death from ﬁre, burns, explosion or carbon monoxide poisoning.

WARNING

Do not operate without surround trim assembly and screen installed.

NOTE: Do not use these appliances if any

part has been under water. Immediately call a qualiﬁed, professional service technician to inspect the appliance and to replace any parts of the control system and any gas control which have been under water.

Remarqué : Ne pas utiliser cet appareil s’il a été plongé, même partiellement, dans l’eau. Appeler un technicien qualiﬁé pour inspecter l’appareil et remplacer toute partie du système de commande et toute commande qui a été plongée dans l’eau.

NOTE: Only trim kit(s) supplied by the manufacturer shall be used in the installation of this appliance.

Remarqué : Seules les trousses de garniture fournies par le fabricant doivent être utilisées pour l’installation de cet appareil.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Table 1: Input Rate, Gas Valves

Models

NV35IN

NVCD35IN

NV40IN

NVCD40IN

NV45IN

NVCD45IN

Input Rate (BTU/HR)

Natural Gas Propane Gas

35,500 high

15,500 low

31,000 high

16,000 low

41,500 high

15,500 low

40,000 high

21,000 low

47,000 high

18,000 low

47,000 high

24,000 low

35,000 high

18,000 low

28,000 high

15,000 low

37,000 high

14,500 low

32,000 high

18,500 low

45,000 high

18,000 low

40,000 high

22,000 low

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Gas Pressure

Table 2 and Table 3 show the appliance inlet and manifold gas pressure requirements.

Oriﬁce Sizes—Sea Level to High Altitude

These appliances are tested and approved for installation at elevations of 0–4500 ft (0–1372 m) above sea level using the

Table 2: Inlet Gas Supply Pressure

Fuel Minimum Maximum

Natural Gas

Propane

4.5 in. WC (1.12 kPa)

11.0 in. WC (2.74 kPa)

10.5 in. WC (2.61 kPa)

13.0 in. WC (3.23 kPa)

standard burner oriﬁce sizes (marked with an “*” in Table 4).

For elevations above 4500 ft, contact your gas supplier or qualiﬁed service technician.

Deration

At higher elevations, the amount of BTU fuel

Table 3: Manifold Gas Supply Pressure

Fuel Low High

Natural Gas

Propane

1.6 in. WC (0.40 kPa)

6.3 in. WC (1.57 kPa)

3.5 in. WC (0.87 kPa)

10.0 in. WC (2.49 kPa)

Test gauge connections are provided on the front of the electronic gas control valve (identiﬁed IN for the inlet and OUT for the manifold side). The control valves have a 3/8 in. (10 mm) NPT thread inlet and outlet side of the valve (Figure 1).

Figure 1: SIT Electronic Gas Valve

Green Wire

(from DFC wire

Inlet (IN) Test Port

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Manifold (OUT)

Test Port

Orange Wire

(from DFC

wire

harness)

Main

Gas Inlet

3/8 in. NPT

harness)

Yellow Ground Wire (from DFC wire harness)

Hi/Lo Flame Control Knob

Propane tanks are at pressures that will cause damage to valve components. Verify that the tanks have step down regulators to reduce the pressure to safe levels.

The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).

The appliance must be isolated from

value delivered must be reduced by either:

• Using gas that has been derated by the gas company.

• Changing the burner oriﬁce to a smaller size as regulated by the local authorities having jurisdiction and by the (USA) National Fuel Gas Code NFPA 54/ANSI Z223.1—latest edition or, in Canada, the CAN/CSA-B149.1 codes— latest edition.

NOTE: Flame breadth, height and width will diminish 4% for every 1,000 feet of altitude.

Table 4: Burner Oriﬁce Sizes, Elevation 0–4500 ft ( 0–1372 m)

Model

NV35IN

NVCD35IN

NV40IN

NVCD40IN

NV45IN

NVCD45IN

* Standard size installed at factory

• Catalog number

Natural Gas

drill size

Front

#49 (0.073 in.)*

Back

#43 (0.089 in.)*

Front

#42 (0.0935 in.)*

Back

#55 (0.052 in.)*

Front

#41 (0.096 in.)*

Back

#43 (0.089 in.)*

Front

#35 (0.11 in.)*

Back

#52 (0.0635 in.)*

Front

#40 (0.098 in.)*

Back

#40 (0.098 in.)*

Front

#32 (0.116 in.)*

Back

#49 (0.073 in.)*

Propane drill size

Front

#57 (0.043 in.)*

Back

#54 (0.055 in.)*

Front

#55 (0.052 in.)*

Back

#60 (0.040 in.)*

Front

#55 (0.052 in.)*

Back

#55 (0.052 in.)*

Front

#53 (0.0595 in.)*

Back

#65 (0.035 in.)*

Front

#54 (0.055 in.)*

Back

#54 (0.055 in.)*

Front

#51 (0.067 in.)*

Back

#62 (0.038 in.)*

the gas supply piping system by closing

In Canada—CAN/CGA-2.17-M91 (high altitude):

THE CONVERSION SHALL BE CARRIED OUT BY A MANUFACTURER’S AUTHORIZED REPRESENTATIVE, IN ACCORDANCE WITH THE REQUIREMENTS OF THE MANUFACTURER, PROVINCIAL OR TERRITORIAL AUTHORITIES HAVING JURISDICTION AND IN ACCORDANCE WITH THE REQUIREMENTS OF THE CAN/CGA-B149.1 OR CAN/CGA-B149.2 INSTALLATION CODES.

REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS

These ﬁreplaces are approved for installation in the U.S. state of Massachusetts if the following additional requirements are met:

• Install this appliance in accordance with Massachusetts Rules and Regulations 248 C.M.R..

• Installation and repair must be done by a plumber or gas ﬁtter licensed in the Commonwealth of Massachusetts.

• The ﬂexible gas line connector used shall not exceed 36 in. (914 mm) in length.

• The individual manual shut-off must be a T-handle type valve.

Massachusetts Horizontal Vent Requirements

In the Commonwealth of Massachusetts, horizontal terminations installed less than seven (7) feet above the ﬁnished grade must comply with the following additional requirements:

• A hard wired carbon monoxide detector with an alarm and battery back-up must be installed on the ﬂoor level where the gas ﬁreplace is installed. The carbon monoxide detector must comply with NFPA 720, be ANSI/UL 2034 listed and be ISA certiﬁed.

• A metal or plastic identiﬁcation plate must be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade and be directly in line with the horizontal termination. The sign must read, in print size no less than one-half (1/2)

inch in size, GAS VENT DIRECTLY

BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.

its equipment shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

COLD CLIMATE INSULATION

For cold climate installations, seal all cracks around your appliance with noncombustible material and wherever cold air could enter the room. It is especially important to insulate outside chase cavity between studs and under ﬂoor on which appliance rests, if ﬂoor is above ground level. Gas line holes and other openings should be caulked or stuffed with unfaced ﬁberglass insulation.

CAUTION

Ensure that the cross members are not cut or weakened during installation. The structural integrity of the manufactured home ﬂoor, wall, and ceiling / roof must be maintained.

Figure 2: Typical Locations

NOITACILPPA

NEVP

TNEVPOT

APPLICATION

TOP VENT

If the ﬁreplace is being installed on a cement slab in cold climates, a sheet of plywood or other raised platform can be placed underneath to prevent conduction of cold transferring to the ﬁreplace and into the room. It also helps to sheetrock inside surfaces and tape for maximum air tightness and caulk ﬁrestops.

CAUTION

This appliance must be grounded to the chassis of the manufactured home in accordance with local codes or in the absence of local codes, with

RECESSED

INSTALLATION

APPLICATION

the National Electrical Code ANSI

MANUFACTURED HOME REQUIREMENTS

This appliance may be installed in an aftermarket permanently located, manufactured home and must be installed in accordance with the manufacturer’s instructions and the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, in the United States, or the Standard for Installation in Mobile Homes, CAN/CSA Z240 MH Series, in Canada.

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Cet appareil peut être installé cómme du matéri-el d’origine dans une maison préfabriquée (É.U. seulement) ou mobile et doit être installé selon les instructions du fabricant et conformément à la norme Manufactured Home Constructions and Safety, Title 24 CFR, Part 3200 aux Unis ou à la norme Can/CSA-Z240 Série MM, Maisons mobiles au Canada.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases, unless a certiﬁed kit is used.

Cet appareil doit être utilisé uniquement avec le type de gaz indiqué sur la plaque signalétique. Cet appareil ne peut être converti à d’autres gaz, sauf si une trousse de conversion est utilisée.

/ NFPA 70—latest edition or the Canadian Electrical Code CSA C22.1—latest edition.

LOCATION

In selecting the location, the aesthetic and functional use of the appliance are primary concerns. However, vent system routing to the exterior and access to the fuel supply are also important. The appliance may be installed in a bedroom.

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

En raison des températures élevées, l’appareil devrait être installé dans un endroit où il y a peu de circulation et loin du mobilier et des tentures.

The location should also be free of electrical, plumbing, or other heating/air conditioning ducting.

These direct-vent appliances are uniquely suited for installations requiring a utility shelf positioned directly above the ﬁreplace. Utility shelves like these are commonly used for locating television sets and decorative plants.

Be aware that this is a heat producing appliance. Objects placed above the unit are exposed to elevated temperatures.

Do not insulate the space between the appliance and the area above it.

The minimum height from the base of the appliance to the underside of combustible materials used to construct a utility shelf in this fashion is shown in

The appliance should be mounted on a fully supported base extending the full width and depth of the unit. The appliance may be located on or near conventional construction materials. However, if installed on combustible materials, such as carpeting, vinyl tile, etc., a metal or wood barrier covering the entire bottom surface must be used.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Table 8.

HORIZONTAL VENT

(Top Vent Application)

N O

TNEVPOT

NOITACILPPA

TOP VENT

VERTICAL VENT

(Top Vent Application)

T A C

I L P P A

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Roof Pitch is X/12

2 ft

minimum

2 ft minimum

Lowest

Discharge

Opening

*H = MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING OF VENT

TERMINATION HEIGHTS FOR VENTS ABOVE

FLAT OR SLOPED ROOFS

Horizontal Overhang

Vertical Wall

Vent

Termination

Storm Collar

Concentric

Vent Pipe

Flashing

1 in. (25.4 mm) Minimum Clearance to Combustibles

Horizontal Vent Termination Clearances

VENT TERMINATION CLEARANCES

Figure 4: Vertical Vent Termination Clearances

These instructions should be used as a guideline and do not supersede local codes in any way. Install venting according to local codes, these instructions, the current National Fuel Gas Code (ANSI-Z223.1) in the USA, or the current standards of CAN/ CSA-B149.1 in Canada.

Vertical Vent Termination Clearances

Terminate multiple vent terminations according to the installation codes listed above (Figure 3).

Figure 3: Multiple Terminations

12 in.

(305 mm)

minimum

Terminate single vent caps relative to building components according to Table 5 and Figure 4.

Table 5: Termination Heights for Vents

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above Flat or Sloped Roofs (NFPA 54 / ANSI Z223.1)

Roof Pitch Termination Height

Flat to 6/12 6/12 to 7/12 1.25 ft (0.38 m) 7/12 to 8/12 1.5 ft (0.46 m) 8/12 to 9/12 2.0 ft (0.61 m)

9/12 to 10/12 2.5 ft (0.76 m) 10/12 to 11/12 3.25 ft (0.99 m) 11/12 to 12/12 4.0 ft (1.22 m) 12/12 to 14/12 5.0 ft (1.52 m) 14/12 to 16/12 6.0 ft (1.83 m) 16/12 to 18/12 7.0 ft (2.13 m) 18/12 to 20/12 7.5 ft (2.29 m) 20/12 to 21/12 8.0 ft (2.44 m)

1.0 ft (0.3 m)

Figure 5: Horizontal Vent Termination Clearances

Combustible Projection

2 1/2

Combustible Projection greater

than 2 1/2 in. in length

Ventilated

Soffit

Unventilated

Soffit

18 in.

(457 mm)

12 in.

(305 mm)

in. or less in length

6 in.

(152 mm)

All horizontal terminations may be located as close as 6 in. (152 mm) to any combustible exterior sidewall. This distance may be decreased to 4 in. (102 mm) for noncombustible exterior sidewalls.

Side Elevation View

Termination Kit

See Figure 24 for the exterior wall recess allowances of the square horizontal termination.

Termination Kit

Horizontal Vent Termination Clearances

The horizontal vent termination must have a minimum of 6 in. (152 mm) clearance to any overhead combustible projection of 2 1/2 in. (64 mm) or less (see Figure 5). For projections exceeding 2 1/2 in. (64 mm), see Figure 5. For additional vent location restrictions refer to Table 6 on Page 7.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Table 6: Exterior Horizontal Vent Termination Clearances

NOTE: Local Codes Or Regulations

See Item D in the Text Below.

Horizontal Termination

Exterior Wall

*18 in.

Inside Corner

6 in.

Ventilated Soffit

Detail D

= Air Supply Inlet

Fixed

Closed

= Vent Termination

Window

Inside

Corner Detail

Operable

Window

= Area where Termination is not Permitted

U.S. Installation ** Canadian Installation * A Clearance above grade, veranda, porch, desk, or balcony B Clearance to window or door that may be opened

12 in. (300 mm) ** 12 in. (300 mm) *

6 in. (150 mm)

for appliances < 10,000 Btuh (3 kW),

9 in. (230 mm)

for appliances > 10,000 Btuh (3 kW), and < 50,000 Btuh (15 kW),

12 in. (300 mm)

for appliances > 50,000 Btuh (15 kW) ** C Clearance to permanently closed window

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D Vertical clearance to ventilated sofﬁt located above the

termination within a horizontal distance of 18 in. (458 mm)

E Clearance to unventilated sofﬁt

F Clearance to outside corner

G Clearance to inside corner

9 in. (229 mm)

recommended to prevent window condensation

18 in. (458 mm) 18 in. (458 mm)

12 in. (305 mm)

30 in. (760 mm) to vinyl sofﬁt

5 in. (127 mm)

minimum

2 in. (50.8 mm)

minimum—SV4.5HT-2 •

6 in. (152 mm)

minimum—SV4.5HTSS H Clearance to each inside of center line extended above

meter / regulator assembly

I Clearance to service regulator vent outlet

J Clearance to nonmechanical air supply inlet to building or

the combustion air inlet to any other appliance

36 in. (910 mm)

within a height of 15 ft above the meter / regulator assembly **

36 in. (910 mm)** 36 in. (910 mm)*

6 in. (150 mm)

for appliances < 10,000 Btuh (3 kW),

9 in. (230 mm)

for appliances > 10,000 Btuh (3 kW) and < 50,000 Btuh (15 kW),

12 in. (300 mm)

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

K Clearance to a mechanical air supply inlet

L Clearance above paved sidewalk or paved diveway located

36 in. (910 mm) above if within 10 ft (3 m) horizontally ** 72 in. (1830 mm) *

84 in. (2130 mm) ‡ 84 in. (2130 mm) ‡

on public property

M Clearance under veranda, porch, deck or balcony

N Depth of alcove (maximum) O Clearance to termination (alcove) P Width of alcove (minimum) Q Clearance to combustible above (alcove)

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

‡

A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings

*‡

Only permitted if veranda, porch, deck, or balcony is fully-open on a minimum two sides beneath the ﬂoor

•

2 in. clearance to non-combustibles for SV4.5HT-2 only

12 in. (300 mm) *‡ 12 in. (300 mm) *‡

72 in. (1830 mm) ** 72 in. (1830 mm) *

6 in. (15.2 mm) ** 6 in. (15.2 mm)*

36 in. (910 mm) ** 36 in. (910 mm) *

18 in. (457 mm) ** 18 in. (457 mm) *

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

May Require Different Clearances.

NOTE: Location Of The Vent Termination Must Not Interfere With Access To The Electrical Service.

= 9 in. (in U.S.)

= 12 in. (in Canada)

3 ft.

6 in. (150 mm) for appliances < 10,000 Btuh (3 kW),

12 in. (300 mm) for appliances > 10,000 Btuh (3 kW)

12 in. (305 mm) recommended to prevent window condensation

12 in. (305 mm) 30 in. (760 mm) to vinyl sofﬁt

5 in. (127 mm) minimum

2 in. (50.8 mm)

minimum—SV4.5HT-2 •

6 in. (152 mm) minimum—SV4.5HTSS

36 in. (910 mm) within a height of 15 ft above the meter / regulator assembly *

6 in. (150 mm) for appliances < 10,000 Btuh (3 kW),

12 in. (300 mm) for appliances > 10,000 Btuh (3 kW)

Page 8

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

5 (127)

12 (305)

MINIMUM CLEARANCES TO COMBUSTIBLES

Appliance And Vent Clearances

The appliance is approved with zero clearance to combustible materials on all sides (Table 7), with the following exception: When the unit is installed with one side ﬂush with a wall, the wall on the other side of the unit must not extend beyond the front edge of the unit. In addition, when the unit is recessed, the side walls surrounding the unit must not extend beyond the front edge of the unit (Figure 7).

Table 7: Minimum Clearances *

Back

Sides

Top Spacers

Floor

From Bottom of

Unit to Ceiling

Front Service

Clearance

* 3 in. (76 mm) above any horizontal/inclined vent component.

** See Page 9 for clearance requirements to the nailing ﬂange located at each side of the unit and

f i r e - p a r t s . c o m

any screw heads adjacent to it.

1/2 in. (13 mm) to wrapper

0 in. (0 mm) to Spacers

1/2 in. (13 mm) to wrapper 0 in. (0 mm) to Spacers **

0 in. (0 mm) 0 in. (0 mm)

78 in. (1981 mm)

36 in. (914 mm) Top *

12 in. (305 mm) Sides and Bottom

Hearth Extension

A hearth extension must be built from non-combustible, heat-resistant materials

Wall Finishes / Surrounds / Mantels

Combustible wall ﬁnish materials and/or surround materials must not be allowed to encroach the area deﬁned by the appliance front face (black sheet metal). Never allow combustible materials to be positioned in front of or overlapping the appliance face (Figure 7).

Non-combustible materials, such as surrounds and other appliance trim, may be installed on the appliance face with these exceptions: they must not cover any portion of the removable glass panel.

Vertical installation clearances to combustible mantels vary according to the depth of the mantel (Table 8). Mantels constructed of non-combustible materials may be installed at any height above the appliance opening; however, do not allow anything to hang below the ﬁreplace hood.

Figure 6: Shelf Height

28 (711)

26 (660)

24 (607)

22 (559)

20 (508)

18 (457)

(305)

(254)

(203)

(152)

Table 8: Combustible Shelf Height

Top Vent with one 90° Elbow

Model

NV35 NV40 NV45

78 in.

Minimum

Shelf Height

(see table)

* Includes 3 in. (76 mm) clearance to combustibles (required above vent components)

(102)

(51)

Secure Vent

73 1/2 in.

(1867 mm) *

(e.g., Micore® 160, Glasscrete®, Durock®, or a similar material). It must extend the width of the ﬁreplace opening and at least 20 in.

in. (mm)

in front of the ﬁreplace.

• A hearth extension is required if the ﬁreplace is installed less than 6 in. above the ﬁnished ﬂoor surface.

• A hearth extension is not required if the ﬁreplace is installed at least 6 in. above the ﬁnished ﬂoor surface.

Shelf Height

To provide for the lowest possible shelf surface, the venting attached to the top vent should be routed in a way to minimize obstructions to the space above the appliance. Do not insulate the space between the appliance and the area above it (Figure 6).

Figure 7: Combustible Side Clearances

At 14 1/2 in. minimum side wall clearance, a combustible wall can project to any length.

At 13 3/4 in. side wall clearance, a combustible wall can project 12 in.

At 5 1/2 in. side wall clearance, a combustible wall can project 5 in.

Top View of

Fireplace

Combustible Materials Allowed In Shaded Area “Safe Zone”

Combustible Walls shown in dark gray

Combustible materials may project beyond one side of the ﬁreplace opening as long as they are kept within the shaded areas illustrated here.

Secure Flex®

(ﬂex elbow)

73 1/2 in.

(1867 mm) *

Minimum 12 in. (305 mm) vent section required before elbow.

No combustibles or insulation in the shaded area between the appliance and the shelf above it.

in. (mm)

Protected wall shown in white

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 9

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

TYPICAL INSTALLATION SEQUENCE

WARNING

Failure to position the parts in accordance with these diagrams or failure to use only parts speciﬁcally approved with this appliance may result in property damage or personal injury.

AVERTISSEMENT

PRE-INSTALLATION STEPS

The appliance is shipped with all gas controls and components installed and pre-wired.

1. Remove the shipping carton and the shipping pad.

2. Remove the top louver, then remove the surround trim assembly by

f i r e - p a r t s . c o m

detaching it at the top of the ﬁreplace and lifting it 1 in. to disengage the side tabs, then pulling it away from the ﬁreplace exposing the front glass door (Figure 8).

Figure 8: Removing the surround

trim assembly

The typical sequence of installation is outlined below. However, each installation is unique and may result in variations to the steps described.

See the pages referenced in the following steps for detailed instructions.

1. Construct the Appliance Framing (Page 9).

2. Route the Gas Supply Line to the Appliance (Page 11)

3. Install the Vent System and Exterior Termination (Page 11)

4. Complete the Field Wiring (Page 23)

5. Connect the Gas Supply (Page 25)

6. Verify Correct Appliance Operation (Page 26)

7. Contemporary Fireplaces Only: Install the Contemporary Floor and Contemporary Glass Media (Page 26)

8. Install the Firebox Liners (Page 26)

9. Traditional Fireplaces Only: Install the Logs, Decorative Volcanic Stone, and Glowing Embers (Page 27)

10. Install the Glass Door (Page 28)

11. Adjust the Burner to Ensure Proper Flame Appearance (Page 28)

12. Attach the Safety-inOperation Warnings (Page 31)

Bend each of the two (2) L-shaped standoff components, at the designated places, into a U-shape (Figure 9). Align the closed end of each U-shaped standoff component with the left/right side of the top, front of the ﬁreplace and the attachement holes in the top of the ﬁreplace. Attach each U-shaped standoff component with two (2) 5/16 in. hex head screws. Align the center support with the holes in the U-shaped standoff components and the top of the ﬁreplace. Attach the center support with two (2) 5/16 in. hex head screws in the top and two (2) screws in the bottom.

NOTE: Position the center support with the larger holes at the bottom and the smaller holes at the top.

Figure 9: Framing Standoff

The ﬁreplace should be secured to the side framing members using the unit’s nailing ﬂanges—one top and bottom on each side of the ﬁreplace front (Figure 10). Use 8d nails or their equivalent.

Figure 10: Nailing Flanges *

Side

Framing

5/8 in.

Unit Nailing

1/2 in.

Flanges

Flush

Nailing Flanges Are Provided At All Four Corners

Side Tabs

3. Locate the four (4) spring-loaded

latches; two above and two below the enclosure (Figure 39).

4. Release the lower latches, by pulling

each handle out and down to unhook it from the glass door.

5. Lightly press against the door, to hold

it in position, while releasing the two upper latches.

6. Carefully grip the door at the top

and bottom, and remove it from the ﬁreplace. Place the door in a secure location where it will not be damaged.

Construct the Appliance Framing

Frame the ﬁreplace as illustrated in Table 9, or Table 11 for corner installations.All framing details must allow for a minimum clearance to combustible framing members as shown in Table 6 on Page 7.

If the ﬁreplace is to be elevated above ﬂoor level, a solid continuous platform must be constructed below the ﬁreplace.

Headers may be in direct contact with the ﬁreplace top spacers maintaining the 15 1/2 in. (394 mm) clearance to the ﬁreplace top, but must not be supported by them or notched to ﬁt around them. All construction above the ﬁreplace must be self-supporting. DO NOT use the ﬁreplace for structural support.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

* Left side top corner of ﬁreplace is shown. Requirements for other three corners are the same.

Bend out appropriate nailing ﬂanges to provide for proper drywall thickness to front of ﬁrebox.

Position the ﬁreplace within the framing and secure it with the nailing brackets. Bend out the appropriate nailing ﬂanges for the drywall/ﬁnish material to be used. Nailing ﬂanges are provided for ﬂush framing, 1/2 in. (13 mm) and 5/8 in. (16 mm) framing depths (Figure 10).

NOTE: Combustible framing may be in direct contact with the nailing ﬂanges and may be located closer than 1/2 in. (13 mm) from screw heads and the ﬁrebox wrapper in areas adjacent to the nailing ﬂanges. Frame the opening to the exact dimensions speciﬁed.

Page 10

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

FLUE OUTLET 4 1/2 (114)

COMBUSTION AIR 7 1/2 (190)

14.75 (267)

15 1/2

(394)

(584)

Table 9: Fireplace Framing Speciﬁcations

Model A B C D

NV35IN /

NVCD35IN

NV40IN /

NVCD40IN

NV45IN /

NVCD45IN

39.75 in.

1010 mm

44.75 in.

1137 mm

49.75 in.

1264 mm

44.75 in.

1137 mm

48.5 in.

1232 mm

52.25 in.

1327 mm

24.0 in.

610 mm

24.0 in.

610 mm

24.0 in.

610 mm

46.75 in.

1187 mm

50.5 in.

1283 mm

54.25 in.

1378 mm

Vertical Venting Through the Ceiling:

To frame the ceiling opening, use a plumb line from the ceiling above the appliance to locate center of the vertical run. Cut and/ or frame an opening, 10 1/2 x 10 1/2 in. (267 x 267 mm) inside dimensions, about this center mark (Table 15).

Vent Framing - Top Vent With One 90° Elbow

1/2

Inches (millimeters)

Framing should be constructed of 2x4

267

)

or larger lumber

(178)

12 1/8

(308)

10 1/2

(

5 1/8 (130)

C is the required framing depth dimension when the ﬁnish material (drywall) thickness is 1/2 in. (13mm)

Table 10: Fireplace Speciﬁcations

Model A B C D E F G

f i r e - p a r t s . c o m

NV35IN /

NVCD35IN

NV40IN /

NVCD40IN

NV45IN /

NVCD45IN

44.5 in.

1130 mm

48.25 in.

1226 mm

52.0 in.

1321 mm

24.75 in. 629 mm

28.0 in.

711 mm

32.25 in. 819 mm

28.75 in. 730 mm

33.75 in. 857 mm

38.75 in. 984 mm

39.25 in. 997 mm

44.25 in.

1124 mm

49.25 in.

1251 mm

21.85 in. 555 mm

27.0 in.

686 mm

32.0 in.

813 mm

10.93 in. 278 mm

13.5 in.

343 mm

16.0 in.

406 mm

28.5 in.

724 mm

32.25 in. 819 mm

36.0 in.

914 mm

15 1/2

(394)

Standoff Assembly

Table 11: Corner Framing with Horizontal Termination

Model A B C D E

NV35IN /

NVCD35IN

NV40IN /

NVCD40IN

NV45IN /

NVCD45IN

NOTE: The horizontal vent length of “A” to “B” must not exceed 28 in. (711 mm).

39.25 in.

1000 mm

44.25 in.

1124 mm

49.25 in.

1251 mm

68.00 in.

1727 mm

73.00 in.

1854 mm

78.00 in.

1981 mm

48.10 in.

1222 mm

51.60 in.

1311 mm

55.10 in.

1400 mm

13.75 in. 349 mm

15.50 in. 394 mm

17.25 in. 438 mm

34.00 in. 864 mm

36.50 in. 927 mm

39.00 in. 991 mm

7 in.

(178 mm)

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Back wall of chase/enclosure

(including any finishing materials)

A B

Page 11

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Route the Gas Supply Line to the Appliance

A 1/2 in. (13 mm) gas line must be routed to the left side of the appliance (Figure 11). Gas lines must be routed, constructed and made of materials that are in strict accordance with local codes and regulations. All appliances are factoryequipped with a ﬂexible gas line connector and a 1/2 in. shutoff valve (Page 25).

Figure 11: Routing the gas line

Left Side Front

Corner of

Fireplace Framing

4 1/2 in.

(114 mm)

1 1/2 in. (38 mm)

4 in.

(102 mm)

f i r e - p a r t s . c o m

Proper Sizing of Gas Line

Properly size and route the gas supply line from the supply regulator to the area where the appliance is to be installed per requirements outlined in the National Fuel Gas Code, NFPA 54—latest edition (USA) or CAN/CSA-B149.1—latest edition (Canada).

Never use galvanized or plastic pipe. Refer to the gas supply line, if black iron pipe is being used. Gas lines must be routed, constructed and made of materials that are in strict accordance with local codes and regulations.

Hire a qualiﬁed plumber or gas ﬁtter to correctly size and route the gas supply line to the appliance. Installing a gas supply line from the fuel supply to the appliance involves numerous considerations of materials, protection, sizing, locations, controls, pressure, sediment, and more. No one unfamiliar and unqualiﬁed should attempt sizing or installing gas piping.

• All appliances are factory-equipped with

• See Massachusetts Requirements

• The gas supply line should not be

• A pipe joint compound rated for gas

• A sediment trap in the supply line as

• Check with the local building ofﬁcial

Table 12 for proper sizing of

Table 12: Schedule 40 Black Iron Pipe, Inside Diameter

Pipe Length Natural Gas Propane Gas

0–10 ft 1/2 in. 3/8 in.

10–40 ft 1/2 in. 1/2 in.

40–100 ft 1/2 in. 1/2 in. 100–150 ft 3/4 in. 1/2 in. 150–200 ft 3/4 in. 1/2 in.

a ﬂexible gas line connector and 1/2 in. shutoff valve (Figure 31).

(Page 4) for additional requirements for installations in the state of Massachusetts in the USA.

connected to the appliance until Page 25.

should be used on the threaded joints. Ensure propane-resistant compounds are used in propane applications. Be very careful that the pipe compound does not get inside the pipe.

close as possible to the appliance is recommended. Appliances using propane should have a sediment trap at the base of the tank.

for local code requirements (e.g., Are below grade penetrations of the gas line allowed?, etc).

CAUTION

If propane is used, be aware that with a tank that is too small (i.e., under 100 lbs, if this is the only gas appliance in the dwelling—see NPFA 58), there may be a loss of pressure. This can result in insufﬁcient fuel delivery that can cause sooting, severely delayed ignition, or other malfunctions. Any damage resulting from an improper installation is not covered by the limited warranty.

Install the Vent System and Exterior Termination

NOTE: These instructions should be used

as a guideline and do not supersede local codes in any way. Install venting according to local codes, these instructions, the current National Fuel Gas Code (ANSI-Z223.1) in the USA or the current standards of CAN/CSA-B149.1 in Canada.

Ensure clearances are in accordance with local installation codes and the requirements of the gas supplier.

Dégagement conforme aux codes d’installation locaux et aux exigences du foumisseunde gaz.

Use only approved venting components (Page 2). These ﬁreplaces must be vented directly to the outside.

The vent system may not service multiple appliances, and must never be connected to a ﬂue serving a solid fuel burning appliance. The vent pipe is tested to be run inside an enclosed wall (such as a chase). Inspection openings in the enclosing wall, at the vent pipe joints, are not required.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 12

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Installation of Vent Restrictor

A vent restrictor may be needed with this appliance. The restrictor is installed in the appliance top ﬂue outlet (Figure 13), either before adding vent from above, or after installation of vent from below—within the ﬁrebox. The restrictor is self securing with a positive friction ﬁt.

Determine the vent restrictor conﬁguration for the appliance (

Use the base vent restrictor for:

• Horizontal termination with total vertical run of more than 6 ft.

• Vertical termination with total vertical run of 6–10 ft.

Use intermediate setting for:

• Vertical termination with total vertical run of >10–40 ft.

Use the maximum setting for:

• Vertical termination with total vertical run of >40–60 ft.

Figure 12):

Figure 12: Vent Restrictor Conﬁguration

Base Vent Restrictor

Intermediate Vent Restrictor

f i r e - p a r t s . c o m

Maximum Vent Restrictor

Figure 13: Vent Restrictor Installation

Vent

Collar

Vent

Restrictor

Assembly

(held in place

by friction only)

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 13

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

10 1/2 in. Min.

SV4.5CGV-1

Select Venting System— Horizontal or Vertical

With the appliance secured in the framing, determine the vent routing and identify the exterior termination location. The following sections describe vertical (roof) and horizontal (exterior wall) vent installations. A list of approved venting components are shown on Page 32.

Vertical (Roof) Termination Systems

See the tables starting on Page 17 for the various vertical venting conﬁgurations that are possible for use with these appliances. Secure Vent™ pipe applications are shown in these ﬁgures. Secure Flex™ pipe may also be used. A vertical vent table summarizes each system’s minimum and maximum vertical and horizontal lengths.

Both vertical vent systems terminate through the roof. The minimum vent height above the roof and/or adjacent walls is speciﬁed in ANSI Z223.1—latest edition (In Canada, the current CAN/CSA-B149.1 installation code) by major building codes. Always consult your local codes for speciﬁc requirements. A general guide to follow is the Gas Vent Rule (

Page 6).

Vertical (Straight) Installation

Determine the number of straight vent

f i r e - p a r t s . c o m

sections required. 4 1/2 in. (114 mm), 10 1/2 in. (267 mm), 22 1/2 in. (572 mm), 34 1/2 in. (876 mm) and 46 1/2 in. (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.

Figure 14: Vertical (Straight) Installation

Termination

SV4.5FA OR SV4.5FB Flashing AND SV4.5SC STORM COLLAR

Analyze the vent routing and determine the quantities of vent sections and number of elbows required. Refer to the vertical vent ﬁgures and tables starting on Page 17 to select the type of vertical installation desired. Vent sections are available in net lengths of 4 1/2 in. (114 mm), 10 1/2 in. (267 mm), 22 1/2 in. (572 mm), 34 1/2 in. (876 mm) and 46 1/2 in. (1181 mm). Refer to Table 13 for an aid in selecting length combinations. Elbows are available in 90° and 45° conﬁgurations. Refer to Figure 18 on Page 15 for the SV4.5E45 and SV4.5E90 elbow dimensional speciﬁcations.

Where required, a telescopic vent section (SV4.5LA) may be used to provide the installer with an option in installing in tight and conﬁned spaces, or where the vent run made up of ﬁxed length pieces results in 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 in. (38 mm) to 7 1/2 in. (191 mm). The SV4.5LA is ﬁtted with a locking inclined channel end (identical to a normal vent section component) and a plain end with 3 pilot holes. Slip the plain end over the locking channel end of a standard SV4.5 vent component the required distance and secure with three screws.

Maintain a minimum 1 in. (25 mm) clearance to combustible materials for all vertical elements. Clearances for all horizontal elements are 3 in. (76 mm) on top, 1 in. (25 mm) on sides and 1 in. (25 mm) on the bottom.

1. Frame ceiling opening—Use a plumb

line from the ceiling above the appliance to locate center of the vertical run. Cut and/or frame an opening, 10 1/2 x 10 1/2 in. (267 x 267 mm) inside dimensions, about this center mark (Figure 15).

Figure 15: Ceiling Opening

1 in. (25.4 mm) Minimum Clearance to Combustibles

SV4.5VF



Firestop/Spacer

Roof Framing

10 1/2 in. Min. (267 mm)

(267 mm)

2. Attach vent components to appliance—

Secure Vent SV4.5 direct-vent system components are unitized concentric pipe components featuring positive twist lock connections (Figure 16). To attach a vent component to the appliance collar, align the dimpled end over the collar, adjusting the radial alignment until the four locking dimples are aligned with the inlet of the four inclined channels on the collar (Figure 16). Push the vent component against the collar until it fully engages, then twist the component clockwise, running the dimples down and along the incline channels until they seat at the ends of the channels.

Slide the rope gasket over the vent component and position it snugly against the apppliance.

The unitized design of Secure Vent™ components will engage and seal both the inner and outer pipe without the need for sealant or screws. If desired, a #6 x 1/2 in. screw may be used at the joint, but is not required as the pipe will securely lock when twisted. An elbow may not be directly attached to the appliance collar.

NOTE: All of the appliances covered in this document are ﬁtted with collars having locking inclined channels. The dimpled end of the vent components ﬁt over the appliance collar to create the positive twist lock connection.

Figure 16: Appliance Collar

Align the dimple (4 places) of the upper vent section with the opening of the locking incline channel on the lower vent section or appliance collar. Twist vent component clockwise to engage and seal until arrow and

Arrow

Appliance Collar or Vent Section

dimple align.

Dimple

Locking Incline Channel

Connected Vent Sections

Arrow

60 ft Maximum

(18.3 m)

6 ft Minimum

(1.8 m)

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

When using Secure Flex



use Firestop/Spacer

SF4.5VF

Vertical (Offset) Installation

Ceiling Framing

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Plumb Bob

Page 14

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

3. Attach vent components to each other—Additional vent sections may be added to the previously installed section in accordance with the requirements of the vertical vent ﬁgures and tables.

4. Install ﬁrestop/spacer at ceiling—When using Secure Vent™, use SV4.5VF ﬁrestop/spacer at ceiling joists. When using Secure Flex™, use SF4.5VF ﬁrestop/spacer. If there is living space above the ceiling level, the ﬁrestop/ spacer must be installed on the bottom side of the ceiling. If attic space is above the ceiling, the ﬁrestop/spacer must be installed on the top side of the joist. Route the vent sections through the framed opening and secure the ﬁrestop/spacer with 8d nails or other appropriate fasteners at each corner. Remember to maintain 1 in. (25 mm) clearance to combustibles, framing members, and attic or ceiling insulation when running vertical chimney sections. Attic insulation shield (H3907) may be used to obtain the required clearances. The gap between the vent pipe and a vertical ﬁrestop can be sealed with non-combustible caulking.

f i r e - p a r t s . c o m

Table 13: Vent Section Length

Nominal

Section Length

(in.)

Net Section Length (in.)

Height of Vent

in. ft

4.5 0.375 1 0 0 0 0 1

9 0.75 2 0 0 0 0 2

10.5 0.875 0 1 0 0 0 1

15 1.25 1 1 0 0 0 2

22.5 1.875 0 0 1 0 0 1

31.5 2.625 0 3 0 0 0 3

34.5 2.875 0 0 0 1 0 1

37.5 3.125 1 1 1 0 0 3

43.5 3.625 0 2 1 0 0 3

45 3.75 0 0 2 0 0 2

46.5 3.875 0 0 0 0 1 1

51 4.25 1 0 0 0 1 2

55.5 4.625 0 1 2 0 0 3

57 4.75 0 0 1 1 0 2

67.5

69 5.75 0 0 0 2 0 2

73.5 6.125 1 0 0 2 0 3

79.5 6.625 0 1 0 2 0 3

81 6.75 0 0 0 1 1 2

91.5 7.625 0 0 2 0 1 3

93 7.75 0 0 0 0 2 2

97.5 8.125 1 0 0 0 2 3

103.5 8.625 0 0 0 3 0 3

108 9 1 0 0 3 0 4

117 9.75 1 0 5 0 0 6

118.5 9.875 1 1 0 3 0 5

126 10.5 0 0 1 3 0 4

130.5 10.875 1 0 1 3 0 5

135 11.25 0 0 6 0 0 6

139.5 11.625 0 0 0 0 3 3

142.5 11.875 1 0 0 4 0

144 12 1 0 0 0 3 4

154.5 12.875 1 1 0 0 3 5

160.5 13.375 0 2 0 0 3 5

172.5 14.375 0 0 0 5 0 5

177 14.75 1 0 0 5 0 6

186 15.5 0 0 0 0 4 4

196.5 16.375 0 1 0 0 4 5

207 17.25 0 0 0 6 0 6

211.5 17.625 1 0 0 6 0 7

217.5 18.125 0 1 0 6 0 7

229.5 19.125 0 0 1 6 0 7

232.5 19.375 0 0 0 0 5 5

241.5 20.125 0 0 0 7 0 7

246 20.5 1 0 0 7 0 8

252 21 0 1 0 7 0 8

276 23 0 0 0 8 0 8

279 23.25 0 0 0

280.5 23.375 1 0 0 8 0 9

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

6 12 24 36 48

4.5 10.5 22.5 34.5 46.5

Number of Vent Sections

5.625 0 0 3 0 0 3

0 6 6

Table 13: Vent Section Length

Nominal

Section Length

(in.)

Net Section Length (in.)

Total Qty

Height of Vent

in. ft

289.5 24.125 0 1 0 0 6 7

301.5 25.125 0 0 1 0 6 7

310.5 25.875 0 0 0 9 0 9

325.5 27.125 0 0 0 0 7 7

330 27.5 1 0 0 0 7 8

345 28.75 0 0 0 10 0 10

349.5 29.125 1 0 0 10 0 11

372 31 0 0 0 0 8 8

379.5 31.625 0 0 0 11 0 11

465 38.75 0 0 0 0 10 10

475.5 39.625 0 1 0 0 10 11

480 40 1 1 0 0 10 11

492 41 1 0 1 0 10 12

499.5 41.625 0 0 0 1 10 11

504

511.5 42.625 0 0 0 0 11 11

520.5 43.375 0 2 0 1 11 14

531 44.25 0 2 2 0 11 15

538.5 44.875 1 0 0 2 11 14

549 45.75 1 0 2 1 11 15

558 46.5 0 0 0 0 12 12

562.5 46.875 1 0 0 0 12 13

568.5 47.375 0 1 0 0 12 13

573 47.75 1 1 0 0 12 14

580.5 48.375 0 0 1 0 12 13

589.5 49.125 0 1 2 2 10 15

595.5 49.625 1 1 1 0 12 15

604.5 50.375 0 0 0 0 13 13

615 51.25 0 1 0 0 13 14

625.5 52.125 0 2 0 0 13 15

631.5 52.625 1 0 1 0 13

637.5 53.125 0 1 1 0 13 15

651 54.25 0 0 0 0 14 14

655.5 54.625 1 0 0 0 14 15

672 56 0 2 0 0 14 16

678 56.5 1 0 1 0 14 16

688.5 57.375 1 1 1 0 14 17

697.5 58.125 0 0 0 0 15 15

702 58.5 1 0 0 0 15 16

712.5 59.375 1 1 0 0 15 17

720 60 0 0 1 0 15 16

6 12 24 36 48

4.5 10.5 22.5 34.5 46.5

Number of Vent Sections

42 1 0 0 1 10 12

Total Qty

Page 15

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Table 14: Effective Vent Length

Model Effective Length

SV4.5L6 SV4.5L12 10 1/2 in. SV4.5L24 22 1/2 in.

SV4.5L36 34 1/2 in. SV4.5L48 46 1/2 in.

4 1/2 in.

5. Support the vertical vent run sections—

Support the vertical portion of the venting system every 8 ft (2.4 m) above the ﬁreplace vent outlet. One method of support is by utilizing ﬁeld provided support straps (conventional plumber’s tape). Secure the plumber’s tape to the framing members with nails or screws. Loop the tape around the vent and secure the ends of the tape to the framing. If desired, sheet metal screws (#6 x 1/2 in.) may be used to secure the support straps to the vent pipe (Figure 17).

Figure 17: Venting Support

Blocking

Support Straps (Plumber's tape)

6. Change vent direction to horizontal/

inclined run—At transition to/from 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 elbow sections in a clockwise direction only, to avoid the possibility of unlocking any of the previously connected vent sections (Figure 16).

Figure 18: Elbow Mounting

4 13/16 in.

(122 mm)

Swivel Joint

(360° swivel)

SV4.5E45

(45° Elbow)

Swivel Joint

(360° swivel)

(90° Elbow)

7. Continue installation of horizontal/

inclined sections—Continue with the

8 ft (2.4 m) maximum

installation of the straight vent sections in horizontal/inclined run. Install support straps every 5 ft (1.52 m)

f i r e - p a r t s . c o m

1/2 in. (12.7 mm) minimum clearance to combustibles

along horizontal/inclined vent runs using conventional plumber’s tape (Figure 22). Maintain the horizontal/ inclined run in a straight (no dips) and slightly elevated (recommended) plane, in a direction away from the ﬁreplace of 1/4 in. rise per foot (20 mm per meter). Smaller rise per foot run ratios are

NOTE: Proper venting support is very important. The weight of the vent must not be supported by the ﬁreplace.

acceptable all the way down to at/near level. Use a carpenter’s level to measure from a constant surface and adjust the support straps as necessary.

SV4.5E90

8 1/8 in.

(206 mm)

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 16

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

8. Frame the roof opening—Identify the

location for vent at the roof. Cut and/or frame the opening per Table 15.

Table 15: Roof Framing Dimensions

Pitch C D

0/12 10 1/2 in.

6/12 10 1/2 in.

12/12 10 1/2 in.

9. Install the roof ﬂashing—Extend

the vent sections through the roof structure. Using a carpenter’s level, install the roof ﬂashing over the vent section and position it such that the vent column rises vertically (Figure 19). Nail along perimeter to secure ﬂashing or adjust rooﬁng to overlap the ﬂashing

f i r e - p a r t s . c o m

edges at top and sides only and trim where necessary. Seal the top and both sides of the ﬂashing with waterproof caulking.

(267 mm)

10 1/2 in.

(267 mm)

12 in.

(305 mm)

17 3/4 in.

(451 mm)

10. Install the storm collar—Install the

storm collar, supplied with the ﬂashing, over the vent/ﬂashing joint (Figure 19). Loosen the storm collar screw. Slide the collar down until it meets the top of the ﬂashing. Tighten the adjusting screw. Apply non-combustible caulking or mastic around the circumference of the joint to provide a watertight seal.

Figure 19: Storm Collar

Storm

Flashing

Collar

11. Install the vertical termination

(SV4.5CGV-1)—Extend the vent sections to the correct height (Figure 4). The SV4.5CGV-1 vertical termination (Figure 20) can be installed in the exact same fashion as any other Secure Vent™ section. Align the termination over the end of the previously installed section, adjusting the radial alignment until the four locking dimples of the termination are aligned with the inlets of the four incline channels of the last vent section. Push the termination down until it fully engages, then twist the termination clockwise running the dimples down and along the incline channels until they are seated at the end of the channels. If the vent system extends more than 5 ft (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.

Figure 20: Vertical Termination

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Vertical Vent Tables and Figures

Table 16: Top Vent—Two 90° Elbows

Table 17: Top Vent—Three Elbows

NOTE: Secure Vent® rigid vent pipe is shown in the ﬁgures. Secure Flex® ﬂexible vent pipe may also be used.

Ceiling Firestop/Spacer SV4.5VF*

NOTE: It is very important that the horizontal/inclined run be maintained in a straight (no dips), slightly elevated plane. The recommended incline is approximately 1/4 in. per foot (20 mm per meter) horizontal, in a direction away from the ﬁreplace. The rise per foot run ratios that are smaller are acceptable all the way down to at or near level.

NOTE: SV4.5VF (Secure Vent), SF4.5VF

Ceiling Firestop/Spacer SV4.5VF*

Wall Firestop/Spacer SV4.5HF**

*When using Secure Flex, use Ceiling Firestop/Spacer SF4.5VF.

**When using Secure Flex, use Wall Firestop/Spacer SF4.5HF.

(Secure Flex) ﬁrestop/spacer must be used anytime vent pipe passes through a combustible ﬂoor or ceiling. SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) ﬁrestop/spacer must be used anytime vent pipe passes through a combustible wall.

NOTE: Two 45° elbows may be used in place of one 90° elbow. The same rise to run ratios, as shown in the venting ﬁgures for 90°, must be followed if 45° elbows are used.

NOTE: An elbow is acceptable as 1 ft of vertical rise, but may not be connected

f i r e - p a r t s . c o m

directly to the appliance collar.

WARNING

Under no circumstances, may separate sections of concentric ﬂexible vent pipe be joined together.

Figure 21: Top Vent—Straight

*When using Secure Flex, use Ceiling Firestop/Spacer SF4.5VF.

**When using Secure Flex, use Wall Firestop/Spacer SF4.5HF.

H Maximum V Minimum

feet meters feet meters

5 1.524 2 0.610

10 3.048 3 0.914

15 4.572 4 1.219

20 6.096 5 1.524

V + V

+ H = 60 ft (18.3 m) maximum

H = 20 ft (6.096 m) maximum Install the U-shaped vent restrictor in any vent run

with more than 6 ft of vertical rise. See Page 12 for more information.

If 20 ft of (H) horizontal vent run is needed, then 4 ft (straight section) minimum of (V) vertical vent will be required.

This table shows a 1 (V) to 5 (H) ratio. For every 1 ft of (V) vertical, you are allowed 5 ft of (H) horizontal run, up to a maximum

H + H1 Maximum V Minimum feet meters feet meters

5 1.524 1 0.305

10 3.048 2 0.610

15 4.572 3 0.914

20 6.096 4 1.219

H + H

= 20 ft (6.1 m) maximum

V + V1 + H + H1 = 60 ft (18.3 m) maximum

Install the U-shaped vent restrictor in any vent run with more than 6 ft of vertical rise. See Page 12 for more information.

If 20 ft of (H) horizontal vent run is needed, then 4 ft (straight section) minimum of (V) vertical vent will be required.

This table shows a 1 (V) to 5 (H) ratio. For every 1 ft of (V) vertical, you are allowed 5 ft of (H) horizontal run, up to a maximum horizontal run of 20 ft.

An elbow is acceptable as 1 ft of vertical rise, but may not be connected directly to the appliance collar.

NOTE: The vent system may have a

maximum of three (3) 90° elbows. horizontal run of 20 ft. An elbow is acceptable as 1 ft of vertical

rise, but may not be connected directly to the appliance collar.

u Ceiling Firestop /

Spacer (SV4.5VF)

60 ft (18.3 m)

Maximum

Wall Firestop/Spacer SV4.5HF**

When using

Secure Flex, use

Firestop / Spacer

SF4.5VF

Install the U-shaped vent restrictor in any vent run with more than 6 ft of vertical rise. See Page 12 for more information.

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Horizontal (Outside Wall) Termination System

See the horizontal vent tables on Page 20 that illustrate the various horizontal venting conﬁgurations that are possible for use with these appliances. Secure Vent™ pipe applications are shown in these ﬁgures; Secure Flex™ pipe may also be used. The tables summarize each system’s minimum and maximum vertical and horizontal lengths for installing the vent components in a variety of applications.

These horizontal vent systems terminate through an outside wall. Building codes limit or prohibit terminating in speciﬁc areas (

Table 6).

Secure Vent SV4.5 direct-vent system components are unitized concentric pipe components featuring positive twist lock connections (Figure 16). All of the appliances covered in this document are ﬁtted with collars having locking inclined channels. The dimpled end of the vent components ﬁt over the appliance collar to create the positive twist lock connection.

1. Plan the vent run—Analyze the vent

routing and determine the types and quantities of sections required: 4 1/2 in. (114 mm), 10 1/2 in. (267 mm), 22 1/2 in. (572 mm), 34 1/2 in. (876 mm) and 46 1/2 in. (1181 mm)

f i r e - p a r t s . c o m

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. Maintain a minimum 1 in. (25 mm) clearance to combustibles on the vertical sections. Clearances for the horizontal runs are 3 in. (76 mm) on top, 1 in. (25 mm) on sides, and 1 in. (25 mm) at the bottom.

2. Frame exterior wall opening—Locate

the center of the vent outlet on the exterior wall according to the dimensions shown in (Figure 23). Cut and/or frame an opening, 10 1/2 x 12 1/8 in. (267 x 308 mm) inside dimensions, about this center.

3. Frame ceiling opening—If the vertical

route will penetrate a ceiling, use a plumb line to locate the center above the appliance. Cut and/or frame an opening, 10 1/2 x 10 1/2 in. (267 x 267 mm) inside dimensions, about this center (Table 15).

4. Attach vent components to appliance—

To attach a vent component to the appliance collar, align the dimpled end over the collar, adjusting the radial alignment until the four locking dimples are aligned with the inlets of the four incline channels on the collar (Figure 16). Push the vent component against the collar until it fully engages, then twist the component clockwise, running the dimples down and along

the incline channels until they seat at the end of the channels.

Slide the rope gasket over the vent component and position it snugly against the apppliance.

The unitized design of Secure Vent™ components will engage and seal both the inner and outer pipe elements with the same procedure. Sealant and securing screws are not required.

NOTE: An elbow may not be attached directly to the appliance collar. At a

minimum, a 12 in. (305 mm) straight vent section is required before attaching the ﬁrst elbow (Figure 22).

5. Attach vent components to each

other—Other vent sections may be added to the previously installed section in accordance with the requirements of the vent tables. To add another vent component to a length of vent run, align the dimpled end of the component over the inclined channel end of the previously installed section, adjusting the radial alignment until the four locking dimples are aligned with the inlets of the four incline channels of the previous section. Push the vent component against the previous section until it fully engages, then twist the component clockwise running the dimples down and along the incline channels until they seat at the end of the channels. This seating position is indicated by the alignment of the arrow and dimple (

6. Install ﬁrestop/spacer at ceiling—

When using Secure Vent, use SV4.5VF ﬁrestop/spacer at ceiling joists. When using Secure Flex, use SF4.5VF ﬁrestop/spacer. If there is living space above the ceiling level, the ﬁrestop/ spacer must be installed on the bottom side of the ceiling. If attic space is above the ceiling, the ﬁrestop/spacer must be installed on the top side of the joist. Route the vent sections through the framed opening and secure the ﬁrestop/spacer with 8d nails or other appropriate fasteners at each corner.

NOTE: Maintain 1 in. (25 mm) clearance to combustibles, framing members, and attic or ceiling insulation when running vertical chimney sections.

7. Support the vertical run sections—

See Page 15.

8. Change vent direction—At transition to/

from 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 elbow sections in a clockwise

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure 16).

direction only, to avoid the possibility of unlocking any of the previously connected vent sections (Figure 16).

9. Continue installation of horizontal/

inclined sections—Continue with the installation of the straight vent sections in horizontal/inclined run. Install support straps every 5 ft (1.52 m) along horizontal/inclined vent runs using conventional plumber’s tape (Figure 22). Maintain the horizontal/ inclined run in a straight (no dips) and slightly elevated plane, in a direction away from the ﬁreplace of 1/4 in. rise per foot (20 mm per meter). Smaller rise per foot run ratios are acceptable, all the way down to at/near level.

NOTE: Maintain the required clearances to combustibles: 1 in. (25 mm) at all sides for all vertical runs; and 3 in. (76 mm) at the top, 1 in. (25 mm) at sides, and 1 in. (25 mm) at the bottom for all horizontal/inclined runs. Use a carpenter’s level to measure from a constant surface and adjust the support straps as necessary.

10. Assemble the vent run to the exterior

wall—If not previously measured, locate the center of the vent at the exterior wall. Prepare an opening as described in Figure 23. Assemble the vent system to point where the terminus of the last section is located relative to the exterior surface to which the termination is to be attached (Figure 24). 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 those shown in Figure 24, refer to Table 18.

11. Attach the termination adaptor—Attach

the adaptor (SV4.5RCH, provided with the termination) to the vent section or telescoping vent section elbow or appliance collar (Figure 23) in the same manner as any SV4.5 vent component.

12. Install the ﬁrestop/spacer at the exterior

wall—When using the termination, install the SV4.5HF (Secure Vent™), or SF4.5HF (Secure Flex™) ﬁrestop/spacer over the opening at the exterior side of the framing, long side up, with the 3 in. spacer clearance at the top (Figure 23), and nail into place. The ﬁrestop/spacer may also be installed over the opening at the interior side of framing.

NOTE: The ﬁrestop/spacer also may be installed over the opening on the interior side of framing. The gap between the vent pipe and a ﬁrestop can be sealed with noncombustible caulking.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

13. Install the Termination (SV4.5HT-2)—

For the last step, from outside the exterior wall, slide the collars of the termination onto the adaptor (the outer inside the outer and the inner outside the inner) until the termination seats against the exterior wall surface to

Figure 22: Typical Horizontal Vent Installation

Building Support Framing

90° elbow

Horizontal Support Brackets

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 in. (32 mm) (Figure 24).

Vertical Rise

Ceiling

Vertical Firestop/ Spacer

Support vertical venting every 8 ft (2.4 m) above ﬁreplace vent outlet

Place horizontal support brackets every 5 ft (1.524 m)

12 in. straight section required before a 90° elbow

NOTE: The vent termination is hot while in operation and for a period of time following the use of the ﬁreplace. To

Fireplace

prevent contact with hot surfaces, use a termination guard (

Page 32). This

can be purchased at your local dealer.

Horizontal terminations have been designed to perform in a wide range of weather conditions. Our terminations meet or exceed industry standards.

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

f i r e - p a r t s . c o m

must be placed where the possibility

Figure 23: Installing Horizontal Termination

Firestop/Spacer (SV4.5HF) shown on the exterior side of the wall. It

may also be installed on the

10 1/2 in.

(267 mm)

12 1/8 in.

(308 mm)

5 1/8 in.

(130 mm)

7 in.

(178)

interior side.

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.

Adapter

SV4.5RCH

Carefully follow the installation instructions for the termination, including the use of silicone caulking where required.

6 to 48 in. Vent Section,

Telescopic vent section,

Elbow or Appliance Collar

Note: Centerline of Vent Piping is

NOT the Same as the Centerline of

the Frame Opening.

Base of Appliance

Exterior Wall

Horizontal Termination

Termination

1 in.

(25.4 mm)

Typical

Shown

3 in.

(76 mm)

Figure 24: Horizontal Termination

*Use silicone caulking to seal the top and sides of the termination, up to the underlayment, stucco, or masonry wall surface.

*Caulk

Stucco

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Siding

Square Termination

Interior Surface of

Maximum Extent of Vent Run Sections Relative to Exterior Surface of Framing

Last Vent Section. Use Telescopic Vent Section (SV4.5LA), If Necessary

SV4.5HT-2

Shown

Finished Wall

Adapter

SV4.5RCH

Maximum wall thickness

9 1/4 in. (235 mm)**

Exterior Surface of Siding

Exterior Surface of

Framing

6 in. to 9 1/4 in.

(152 to 235 mm)**

SV4.5HT-2

Square Termination

Shown

1-1/4 in. Maximum Recess the Square Termination into Exterior Finishing Material

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Horizontal Vent Tables and Figures

Table 19: Top Vent—One 90° Elbow, Elbow Connection NOT at Appliance

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.

NOTE: Two 45° elbows may be used in place of one 90° elbow. The same rise to run ratios, as shown in the venting ﬁgures for 90° elbows, must be followed if 45° elbows are used.

When using Secure Flex,



use Firestop/Spacer

SF4.5VF.

When using Secure Flex,



use Firestop/Spacer

SF4.5HF.

Wall Firestop/Spacer



(SV4.5HF)

Min. One Foot Vent

Section

Required

Ceiling



Firestop/Spacer

(SV4.5VF)

the ﬁreplace. Rise per foot run ratios are acceptable to at or near level.

NOTE:

SV4.5VF (Secure Vent), SF4.5VF

(Secure Flex) ﬁrestop/spacer must be

feet meters feet meters

used anytime vent pipe passes through a combustible ﬂoor or ceiling. SV4.5HF (Secure Vent), SF4.5HF (Secure Flex) ﬁrestop/spacer must be used anytime vent pipe passes through a combustible wall.

NOTE: The tables show a 1(V) to 1.6 (H) ratio up to a maximum horizontal run of 16 ft.

NOTE: An elbow is acceptable as 1 ft of

f i r e - p a r t s . c o m

vertical rise, but may not be connected directly to the appliance collar.

WARNING

Under no circumstances, may separate sections of

V + H = 60 ft (18.3 m) maximum H = 16 ft (4.87 m) maximum

Install the U-shaped vent restrictor in any vent run with more than 6 ft of vertical rise. See Page 12 for more information.

Square termination (SV4.5HT-2) shown. If 16 ft of (H) horizontal vent run is needed, then 10 ft minimum of (V) vertical vent will be required. This table shows a 1 (V) to 1.6 (H) ratio. For every 1 ft of (V) vertical, you are allowed 1.6 ft of (H) horizontal run, up to

a maximum horizontal run of 16 ft (4.87 m).

H Maximum V Minimum

3 0.91 1.6 0.490

5.2 1.58 3 0.914

6.8 2.07 4 1.22

8.4 2.56 5 1.524

10 3.05 6 1.729

16 4.87 10 3.050

concentric ﬂexible vent pipe be joined together.

Table 18: Venting Components Required for Various Exterior Wall Thicknesses, when using Typical Termination Kits

Vent Components

Required

Termination Kit Only

Termination Kit and 6 in.

Vent Section (SV4.5L6)

Termination Kit and 12 in.

Vent Section (SV4.5L12)

Termination Kit and

Telescopic Section

(SV4.5L12)

Exterior Wall Thickness

6–9 1/4 in.

(152–235 mm)

10 3/4–14 in.

(2733–356 mm)

16 3/4–20 in.

(426–508 mm)

11 3/4–20 in.

(299–508 mm)

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Table 20: Top Vent—Two 90° Elbows

H + H1 Maximum V Minimum

feet meters feet meters

3 0.91 1.6 0.490

5.2 1.58 3 0.914

6.8 2.07 4 1.22

8.4 2.56 5 1.524

10 3.05 6 1.729

16 4.87 10 3.050

V + H + H H + H1 = 16 ft (4.87 m) maximum

Install the U-shaped vent restrictor in any vent run with more than 6 ft of vertical rise. See Page 12 for more information.

Square termination (SV4.5HT-2) shown. See Table 18 as an aid in venting component selection for a particular range of

exterior wall thicknesses.

If 16 ft of (H) horizontal vent run is needed, then 10 ft minimum of (V) vertical vent will be required.

This table shows a 1 (V) to 1.6 (H) ratio. For every 1 ft of (V) vertical, you are allowed

1.6 ft of (H) horizontal run, up to a maximum horizontal run of 16 ft (4.87 m). An elbow is acceptable as 1 ft of vertical rise, but may not be connected directly to

the appliance collar.

= 60 ft (18.3 m) maximum

Note - When using



Secure Flex

Firestop/Spacer SF4.5VF.

When using SecureFlex,



use Firestop/Spacer

SF4.5HF.

, use



Wall Firestop/Spacer

(SV4.5HF)

Wall



Firestop/Spacer

(SV4.5HF)

Ceiling



Firestop/Spacer

(SV4.5VF)

Min. One Foot Vent

Section Required

f i r e - p a r t s . c o m

Table 21: Top Vent—Three 90° Elbows

H Maximum V Minimum

feet meters feet meters

3 0.91 1.6 0.490

5.2 1.58 3 0.914

6.8 2.07 4 1.22

8.4 2.56 5 1.524

10 3.05 6 1.729

16 4.87 10 3.050

H + H

= 16 ft (4.87 m) maximum

V + V1 +H + H1 = 60 ft (18.3 m) maximum

Install the U-shaped vent restrictor in any vent run with more than 6 ft of vertical rise. See Page 12 for more information.

Square termination (SV4.5HT-2) shown. See Table 18 as an aid in venting component selection for a particular range of

exterior wall thicknesses.

If 16 ft of (H) horizontal vent run is needed, then 10 ft minimum of (V) vertical vent will be required.

This table shows a 1 (V) to 1.6 (H) ratio. For every 1 ft of (V) vertical, you are allowed

1.6 ft of (H) horizontal run, up to a maximum horizontal run of 16 ft (4.87 m). An elbow is acceptable as 1 ft of vertical rise, but may not be connected directly to

the appliance collar.

Wall Firestop/Spacer



(SV4.5HF)

When using Secure Flex



use Firestop/Spacer

When using Secure



Flex, use Firestop/Spacer

Wall Firestop/Spacer



(SV4.5HF)

Min. One Foot Vent

Section Required

SF4.5VF.

SF4.5HF.

Ceiling



Firestop/Spacer

(SV4.5VF)

TM,

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Vertical or Horizontal Venting Using Secure Flex™ Venting Kits and Components

Secure Flex™ venting kits and components may be used in any venting application in place of rigid Secure Vent™ (SV4.5) direct-vent components. All restrictions, clearances and allowances that pertain to the rigid piping apply to the ﬂexible venting. Secure Flex kits may not be modiﬁed. Do not join separate sections of ﬂex pipe together.

Using an adaptor (SV4.5RF), 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 requirements or clearance considerations detailed in this manual.

Secure Flex kits come with an adaptor that can be ﬁtted to 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 adaptor over the previously installed section or appliance collar, adjusting the radial alignment until the four locking dimples of the adaptor are aligned with the inlets of the four inclined channels of the last vent section or collar.

f i r e - p a r t s . c o m

Push on the adaptor until it fully engages, then twist the adaptor clockwise running the dimples down and along the incline channels until they seat at the end of the channels.

Attach the ﬂexible vent to the adaptor as follows (

1. Install the Inner ﬂex pipe—Install the

Figure 25):

small gear clamp loosely around the inner ﬂexible vent pipe and push it back out of the way. Apply a bead of MillPac Black (700 °F) high temperature sealant (P/N 10K81) to the inner adaptor collar, approximately 1/2 in. from the end. Pull and extend the inner ﬂexible vent pipe. Slide the inner ﬂex pipe over the adaptor collar. Ensure the ﬂexible vent pipe completely engages the adaptor collar to a distance of 1 3/4 in. from the end, and that it is free from damage or tears. Slide the gear clamp into place tighten it fully to secure the ﬂexible vent to the adaptor inner collar approximately 3/4 in. from the end of the ﬂex. Install the three (3) screws, 120° apart, through the ﬂexible vent pipe and into the adaptor collar just below the gear clamp to provide additional security to the connection.

2. Install the outer ﬂex pipe—Install the

large gear clamp loosely around the outer ﬂexible vent pipe and push it back out of the way. Apply a bead of Mill-Pac Black (700 °F) high temperature sealant (P/N 10K81) to the outer adaptor collar, to the grooves of the collar that extend approximately 1 in. from the end and to the ﬂat surface, approximately 1 3/8 in. from the end. Pull and extend the outer ﬂexible vent pipe. Slide the outer ﬂex pipe over the adaptor collar. Ensure the ﬂexible vent pipe completely engages the adaptor collar to a distance of 1 3/8 in. from the end, and that it is free from damage or tears. Slide the gear into place and tighten it fully to secure the ﬂexible vent to the adaptor outer collar approximately 3/4 in. from the end of the ﬂex. Install three screws, 120° apart, through the ﬂexible vent pipe and into the adaptor collar just below the gear clamp to provide additional security to the connection.

Figure 25: Flexible Vent Adapter

Flex Vent

Mil-Pac

black high

temperature

sealant

1 3/4 in. (44 mm)

overlap

Adaptor (SV4.5RF)

3. Route the ﬂex vent—Ensure that the

ﬂex vent is properly routed to provide the required clearance. Do not allow the ﬂexible vent to bend in a radius tighter than 5 in. (127 mm) (Figure 26). Evenly space the internal ﬂex vent spacers (roughly every 6 in.) and avoid kinking the inner pipe. Support the horizontal sections of ﬂex with metal straps at 2 ft (0.61 m) intervals.

Figure 26: Flexible Vent

Flexible vent section

Securing screws (3 Places)

Gear clamps

1 3/4 in. (44 mm) overlap

Securing screws (3 Places)

4. Install the ﬁrestop/spacers at the

ceilings and walls—When Secure Flex penetrates a wall or ceiling, a ﬁrestop/ spacer is required. Use the SF4.5 VF ﬁrestop/spacer for ceilings and the SF4.5 HF ﬁrestop/spacer for walls. See the appropriate sections and ﬁgures shown throughout the venting section for their installation requirements.

5. Attach the ﬂex vent to the termination—

Secure Flex components can be purchased separately and attached to bulk lengths of Secure Flex ﬂexible tubing cut to size at the job site. Secure the ﬂexible vent to the Secure Flex terminations in the same manner (Figure 25) as it was attached to the adaptor.

NOTE: Secure Flex vent must be attached

to Secure Flex terminations only. DO NOT

substitute Secure Vent terminations or

the Secure Vent adaptor for Secure Flex

components. The collars of Secure Flex

terminations and adaptors have a different

diameter than those used with the Secure

Vent pipe. Additionally, Secure Flex

components have an extended length center

tube for use in attaching the ﬂexible vent.

5 in. (127 mm)

radius minimum

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Page 23

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Complete the Field Wiring

CAUTION

The ground supply lead must be connected to the wire attached to the green ground screw located on the outlet box (see wiring diagrams). Failure to do so will result in a potential safety hazard. The appliance must be electrically grounded in accordance with local codes or, in the absence of local codes, the National Electrical Code, ANSI/NFPA 70—latest edition (in Canada, the current CSA C22-1 Canadian Electrical Code).

CAUTION

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

Figure 27: Wiring Diagram—Electronic Gas Valves

Schematic Representation Only

COLOR CODE:

B = BLACK

BB = BROWN W/BLACK STRIPE BG = BROWN W/GREEN STRIPE

BL = BLUE BR = BROWN G = GREEN GY = GRAY O = ORANGE R = RED W = WHITE Y = YELLOW

Models w/o pressure switch have these connectors plugged together

Air Pressure Switch

Power Vent Only

Optional Circulation

Blower

Main Wire

Harness

Optional Variable Light

Battery Holder w/Switch

ON/Remote/Off

ON/ Remote /OFF

Battery Holder Wire Harness

885 Valve

Split Flow

Reset Switch

“see instructions”

Pilot Tube

Control Module

IPI Pilot

Fuse

Flame Sensor

Spark Electrode

Ground Y

Main Power Cord

f i r e - p a r t s . c o m

Au moment de l’entretien des commandes, étiquetez tous les ﬁls avant de les débrancher. Des erreurs de cáblage peuvent entraîner un fonctionnement inadéquat et dangereux.

Verify proper operation after servicing.

S’assurer que l’appareil fonctionne adéquatement une fois l’entretien terminé.

The gas valve is set in place and pre-wired at the factory. This appliance must be connected to a 120 Vac power source.

ATTENTION

Electronic Wiring

One of the following optional controls may be used:

• ON/OFF Wall Switch,

• Thermostat / Remote Control.

See the ﬁreplace Care and Operation Instructions for details.

1. Route a 3-wire, 120 Vac, 60 Hz,

1 ph power supply to the left side of the appliance.

2. Remove the electrical inlet cover plate

from the side of the unit by removing the plate’s securing screws.

3. Remove the cover plate knockout.

Install a strain relief. Then, feed the power supply wire through the knockout opening.

4. Use wire nuts to connect the leads from

the appliance to the power supply leads.

5. Replace the cover plate.

6. Install the wall-mounted ON/OFF

control in a convenient location near the ﬁreplace.

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Page 24

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Hot Fireplace Will Cause Severe Burns

Never Allow Children to Touch Glass or other Fire-

place Parts

WARNING

Installing and initializing the Remote Control System

Required Items (not provided):

• Standard Junction Box

• Paper Clip or similar object (for remote

control system initialization)

The receiver for the Total Comfort Control™ Remote Control System connects directly to the gas valve, stepper motor, and fan control module with an umbilical cord wiring harness.

1. Install a junction box (not provided)

on the wall adjacent to the appliance, within reach of the remote system umbilical cord wiring harness. Position the terminal within the junction box in preparation for attachment to the remote wall switch.

2. When wall ﬁnish is complete, install the

wall switch in the previously installed junction box, and connect the terminal to the connector on the back of the wall switch.

3. Install the wall switch cover plate,

taking care to ensure the wall switch is properly indexed with the switch cover when aligning the components for attachments.

f i r e - p a r t s . c o m

After completing ﬁreplace installation, initialize the remote control system before operating the ﬁreplace.

1. Insert the three (3) provided AAA

batteries into the battery bay in the transmitter. Take care to correctly align polarity (+/–).

2. Insert the four (4) provided AA batteries

into the wall switch battery bay (behind the wall switch plate). Take care to correctly align polarity (+/–).

3. On the wall switch, place the three-

position slider switch in the REMOTE position (Figure 28).

4. On the wall switch front cover, insert

the end of a paper clip (or other similar object) into the hole marked PRG.

The Receiver will beep three (3)

NOTE:

times to indicate it is ready to synchronize with the transmitter.

5. On the transmitter, press the ON button.

The receiver will beep four (4) times to indicate acceptance of the transmitter’s command (and set the receiver to the transmitter’s speciﬁc code). The system is now initialized.

The remote control system provides remote operation of the following ﬁreplace functions:

• Primary burner ON/OFF

• Auxiliary burner ON/OFF

• Dimmable light function

• 6-Speed blower operation

• Flame height and heat output

adjustment (six levels)

The receiver accepts commands via radio frequency from the transmitter and does not require line-of-sight operation.

The slider on the wall switch can be set to one of three positions:

• ON (manual override)

• OFF (manual override)

• REMOTE (remote control)

See the ﬁreplace Care and Operation Instructions for detailed instructions on using the remote control system to operate the ﬁreplace.

Figure 28: Wall Switch

Three-position slider switch in REMOTE position

Figure 29: Transmitter (Remote Control)

UP/DOWN

ARROW

Key

MODE Key

WARNING

Fire hazard. Can cause severe injury or death. The receiver causes ignition of the appliance. The appliance can turn on suddenly. Keep away from the appliance burner when operating the remote system or activating manual bypass of the remote system.

CAUTION

Property damage hazard. Excessive heat can cause property damage. The appliance can stay lit for many hours. Turn off the appliance if it is not going to be attended for any length of time. Always place the Transmitter where children can not reach it.

Remote

Off

PRG

LCD Display

ON/OFF Key

THERMOSTAT Key

Refer to the Appliance Care & Operations

manual (P/N 506025-01) for detailed

remote system operation instructions.

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Page 25

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Flex Line Connector

Connect the Gas Supply

All codes require a shutoff valve mounted in the supply line. The shut-off valve should be oriented to face the ﬁreplace front. Figure 31 illustrates two methods for connecting the gas supply. Use a sediment trap in the gas piping within the home to prevent moisture and debris in the line from damaging the valve.

The ﬂex-line method is acceptable in the U.S.A. where local codes permit it. In the Commonwealth of Massachusetts, installation must be performed by a licensed plumber or gas ﬁtter. Canadian requirements vary depending on locality. Installation must be in compliance with local codes. These appliances are equipped with a gas ﬂex line for use in connecting the unit to the gas line (Figure 31). The ﬂex line is rated for both natural and propane gas. A manual shutoff valve is also provided with the ﬂex line.

The gas control valve is located on the left of the ﬁrebox, in the side control compartment. The valve is accessible with the glass door removed (Figure 30).

Secure all joints tightly using appropriate tools and sealing compounds. Ensure propane resistant compounds are used in propane applications. Seal around the gas line to prevent cold air leakage.

f i r e - p a r t s . c o m

Route a hard pipe from the lefthand side to a spot directly below the access plate opening.

Locate the shut-off valve and gas ﬂex line and pull the assembly forward, out of the compartment. Separate the shutoff valve from the gas ﬂex line. Determine the length of pipe needed to route the gas line from the last ﬁtting to a point directly below the access plate opening.

Using pipe-dressing materials appropriate for the gas type, securely afﬁx the shutoff valve to this pipe at a convenient location outside of the appliance lower control compartment.

Refer to Figure 31 and insert the last length of gas pipe with the attached shutoff valve into the lower control compartment, and pass it through the gas line access hole on the left side of the appliance outer wrapper.

Using materials appropriate for the gas type, thread the last length of pipe into the end of the gas vent run and tighten it in place using a pipe wrench.

Figure 30: Gas Control Access

Access Plate

Gas Valve

Figure 31: Gas Line Connection Methods

1/2 in. x 3/8 in. Flare

Shut-Off Valve

Gas Stub

Test all connections (factory and ﬁeld)

for gas leaks

Turn on gas supply and test for leaks using

a gas leak test solution.

NOTE: A soapy water solution is

effective for leak testing. However, it is

not recommended, because the soap

residue left on the pipes/ﬁttings can result

in corrosion.

1. Light the appliance NOTE: Refer to the lighting instructions

label in the control compartment or in the Care and Operation Instructions.

2. 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 (OFF/PILOT/ON) to the OFF position. Either tighten or refasten the leaking connection, then retest as described above.

3. When the gas lines are tested and leak free, rinse off the leak testing solution.

3/8 in. NPT x 3/8 in.

Flare Fitting

3/8 in. Flex Tubing

Gas Valve

NOTE: Turn the last piece of gas pipe in the last ﬁtting until the shut-off valve is positioned in a way that allows the shutoff valve handle to be accessed in the lower control compartment and easily operated through its full range of motion.

Bring the ﬂex line to the shutoff valve by hand and align the ﬂare ﬁttings. Tighten the ﬁttings by hand, and then use a wrench to tighten completely, 1/4 turn at a time.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Verify Correct Appliance Operation

With the gas line installed, perform an initial system inspection before closing the front of the unit. Follow the pilot lighting instructions provided in the Care and Operation Instructions manual.

NOTE: Lighting Instructions are also found on the literature tag tied to the gas piping next to the gas valve in the left side compartment. To access the tag, remove the surround trim assembly.

When lighting the appliance for the ﬁrst time, the gas line will purge itself of air. This may take a few minutes. Once complete, the pilot and burner will light. Subsequent lightings of the appliance will not require air purging. Inspect the pilot ﬂame (carefully remove the logs, if necessary).

To light the burner, turn the wall switch or (optional) remote control ON. Ensure the ignitor lights the pilot. The pilot ﬂame should engulf the ﬂame rod (Figure 32).

Figure 32: Pilot Flame Appearance

Ignitor

Pilot Hood

f i r e - p a r t s . c o m

Sensor

Contemporary Fireplaces Only: Install the Contemporary Floor and Contemporary Glass Media

NOTE: Turn off all electricity to the appliance

before installing the contemporary ﬂoor and contemporary media.

1. Position the rear contemporary ﬂoor

to the back of the ﬁrebox, aligning the holes in the mounting tabs with the screw holes in the ﬁrebox ﬂoor (Figure 33). Secure with the two (2) included 5/16 in. screws.

NOTE: It may be easier to install the rear porcelain ﬁrebox liner (Step 3 in Porcelain Firebox Liners), before installing the rear contemporary ﬂoor.

Figure 33: Installing the Contemporary Floor

Screws

2. Position the front contemporary ﬂoor

to the front of the ﬁrebox, aligning the holes in the mounting tabs with the screw holes in the ﬁrebox ﬂoor (Figure 33). Secure with the two (2) included 5/16 in. screws.

Install the Firebox Liners

Ceramic Firebox Liners

1. Remove the four (4) ﬁrebox liner panels

from the packing materials.

2. Carefully position the rear panel, upper

edge ﬁrst, in the ﬁrebox against the rear wall.

3. While holding the rear panel, carefully

position the left side panel in the ﬁrebox.

4. While holding the left panel, carefully

position the top panel, left edge up to a resting position on the upper edge of the left panel.

5. Raise the right end of the top panel, and

hold it in position while installing the right panel in the following step.

6. Carefully position the right side panel in

the ﬁrebox.

7. Lower the top panel onto the upper

edge of the right side panel. NOTE: Do not force the top panel into

place. Excessive force may cause breakage. If the top panel is correctly positioned, it will ﬁt snugly in place.

8. Ensure the top panel is positioned over

both the left side and right side panels and that all panels are aligned with the sides and rear of the ﬁrebox.

Porcelain Firebox Liners

1. Remove the four (4) ﬁrebox liner panels from the packing materials.

2. Locate the rear, left, and right panels.

3. Position the rear panel, upper edge

ﬁrst, in the ﬁrebox against the rear wall. Insert the lower mounting tabs into the mounting slots in the ﬁrebox base. Secure the panel to the rear wall with a 5/16 in. screw through the upper mounting tab.

4. Position the left panel in the ﬁrebox against the left wall and the rear panel.

5. Position the top panel, left edge up, so that it rests on the upper edge of the left panel.

6. Raise the right edge of the top panel, and hold it against the ﬁrebox ceiling when installing the right panel in the following step.

7. Position the right panel in the ﬁrebox against the right wall and the rear panel.

8. Lower the top panel onto the upper edge of the right panel, and slide it under the two tabs on the left and right panels.

9. Ensure the top panel is positioned over both the left side and right side panels and that all panels are aligned with the sides and rear of the ﬁrebox.

10. Use an ammonia-free glass cleaner and a soft, non-abrasive cloth to remove ﬁngerprints and smudges from the porcelain ﬁrebox liner panels.

11. Install the contemporary glass media in a thin, even layer.

NOTE: Do not mound or overapply the glass media.

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Page 27

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Traditional Fireplaces Only: Install the Logs, Decorative Volcanic Stone, and Glowing Embers

NOTE: Turn off all electricity to the appliance

before installing volcanic stone, embers and logs.

NOTE: The log set and ﬁre are artistically arranged to provide an asymmetrical ﬁre. The ﬁre does not burn in the left rear quarter of the log set.

Figure 34: Log Set

NOTE: Figure 34 is representative of all ﬁreplace models. Logs 5 and 6 may vary in appearance from those shown above.

1. Align the two holes in the bottom of

Log 1 over the two tabs at the rear of the burner (Figure 35).

Figure 35: Placing Logs 1 and 2

2. Hold Log 1 in position while placing

Log 2 on the burner and resting it against the alignment notch in Log 1 (Figure 35).

3. Place Log 3 in position with the

base aligned in the burner surface (Figure 36).

Figure 36: Placing Log 3

6. Place Log 5 in position in the notches on the upper right portions of Logs 1 and 3 (Figure 38).

Figure 38: Placing Logs 5 and 6

7. Place Log 6 in position in the notches near the left ends of Logs 2 and 3 (Figure 38).

8. Install the volcanic stone in front of and on the sides of the log set. Cover all of the exposed metal ﬂoor.

Table 22: Log Set

f i r e - p a r t s . c o m

Log Number Description

1 Rear Log 2 Bottom Left Log 3 Bottom Right Log 4 Front Log

5 Top Right Log

6 Top Left Log

Catalog number for the entire set: 35 in. H8707 40 in. H8708 45 in. H8824

4. Insert the left end of Log 4 under Log 3

and position the right end of Log 4 in the notch on the top, right end of Log 3

(Figure 37).

Figure 37: Placing Log 4

5. Ensure all logs are properly positioned

on the surface of the burner and interlocked with each other (Figure 37).

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Page 28

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Install the Glass Door

WARNING

•Do not attempt to substitute the materials used on these doors, or replace cracked or broken glass.

•Handle this glass with extreme care! Glass is susceptible to damage—Do not scratch or handle roughly

1. Retrieve the glass door. Visually inspect

the gasket on the backside.

2. Locate the four (4) spring-loaded

latches; two above and two below the ﬁreplace opening (Figure 39).

Figure 39: Glass Door

Latch

Adjust the Burner to Ensure Proper Flame Appearance

WARNING

•Air shutter adjustment should only be performed by a qualiﬁed professional service technician.

•Ensure front glass panel is in place and sealed during adjustment.

while reinstalling the glass door frame.

•The glass door of this appliance must only be replaced as a complete unit as provided by the manufacturer. Do not attempt to replace broken, cracked or chipped glass separately.

•Do not attempt to touch the front enclosure glass with your hands while the ﬁreplace is in use.

f i r e - p a r t s . c o m

WARNING

Do not operate appliance with the glass front removed, cracked, or broken.

AVERTISSEMENT

Ne pas utiliser l’appareil si

3. Carefully grip the door at the top and

bottom, and align it with the ﬁreplace opening. Lightly press against the door, to hold it in position.

4. Secure the two upper latches by pulling

each handle down and pressing in to hook it to the glass door.

5. Secure the two lower latches,

6. Install the surround trim assembly

by lowering it onto the appliance and pressing in to secure it (Figure 8).

To Remove the Glass Door

For more information on removing the glass door, see Page 9.

Latch

le panneau frontal en verre n’est pas en place, est craqué, ou brisé.

Only doors certiﬁed with the appliance shall be used.

Seules des portes certiﬁées pour cet appareil doivent être utilisées.

CAUTION

DO NOT abuse glass door by

• Soot will be produced if the air shutter is closed too much. Any damage due to sooting, resulting from improperly setting the air shutter, is not covered under the warranty.

•The air shutter rod and nearby appliance surfaces are hot. Exercise caution to avoid injury while adjusting ﬂame appearance.

Flame Appearance and Sooting

The ﬂame should be blue at the base, and yellow-orange in the body of the ﬂame.

When the appliance is ﬁrst lit, the entire ﬂame may be blue and will gradually turn yellow-orange during the ﬁrst 15 minutes of operation. If the ﬂame remains blue, or if the ﬂame is orange with evidence of sooting (black tip), the air shutter opening may need to be adjusted.

If the air shutter opening is closed too far, sooting may develop. 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 surfaces adjacent to the vent 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-orange ﬂame with an orange body that does not soot, the shutter opening must be adjusted between these two extremes.

CAUTION

striking or slamming shut.

NOTE: Visually inspect the gasket on the

backside of the glass door. The gasket surface must be clean, free of irregularities, and seated ﬁrmly. Ensure it is properly located. Make sure the bead is not rolled into the channel at the top of the door, but remains ﬂat against the top of the glass.

NOTE: When installing the glass door, ensure the spacing on both sides is even.

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Page 29

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Air Shutter Adjustment Guidelines

• If there is smoke or soot present, ﬁrst check the log set positioning to ensure that the ﬂames are not impinging on any of the logs. If the log set is properly positioned and a sooting condition still exists, then the air shutter opening should be increased.

• The more offsets in the vent system, the larger the air shutter opening will need to be.

• An appliance operated with the air shutter opened too far, may have ﬂames that appear blue and transparent. These weak, blue and transparent ﬂames are termed anemic.

• Propane models may exhibit ﬂames which candle or appear stringy. If this is present and persists, adjust the air shutter to a more closed position, then operate the appliance for a few more minutes to ensure that the ﬂame normalizes and the ﬂames do not appear sooty.

The following chart is provided to aid you in achieving the correct air shutter adjustment for your installation.

5. When satisﬁed that the burner ﬂame

appearance is normal, reinstall the lower control compartment door then proceed to ﬁnish the installation.

Figure 40: Air Shutter Adjustment Rod

Air Shutter Adjustment Rod

Figure 41: Traditional Fireplaces

Flame Appearance

Finishing Requirements

1. Remove the surround trim assembly

(Figure 8)

2. Remove the ﬁnish trim gap ﬁllers from

the side of the ﬁreplace, and identify the left and right side pieces (Figure 43).

Figure 43: Finish Trim Gap Fillers

Right

Left

3. Loosen the nine (9) screws securing the

integrated ﬁnish trim and slide the trim out and away from the ﬁreplace door (Figure 44).

Table 23: Air Shutter Adjustment Guidelines

Amount of

f i r e - p a r t s . c o m

Primary Air

If air shutter

is closed

too far

If air shutter

is open

too far

Flame Color

Flame will be orange

Flame will

be blue

1. Remove the top louver and the

Air Shutter

Adjustment

Air shutter

gap should be

increased

Air shutter

gap should be

decreased

Figure 42: Contemporary Fireplaces

Flame Appearance

Figure 44: Finish Trim Fasteners

Fireplace Top

Screws

surround trim assembly.

2. Locate the air shutter adjustment rod in the lower control compartment (Figure 40), and adjust it to the standard setting.

NOTE: Pull the rod out to close, and push the rod in to open the air shutter.

3. Light the appliance (follow lighting

NOTE: Integrated ﬁnish trim

shown in gray. Three (3) screws on right side not shown, but mirror left side.

procedure on lighting label in control compartment or the Care and Operations Manual).

4. Allow the burner to operate for at least 15 minutes while observing the ﬂame continuously to ensure that the proper ﬂame appearance has been achieved (Figure 41 and Figure 42). If the following conditions are present, adjust accordingly. If ﬂame appears weak or sooty, adjust the air shutter, incrementally, to a more open position until the proper ﬂame appearance is achieved. If ﬂame remains blue, adjust

Table 24: Main Burner Shutter Opening— Factory Setting

Models Natural Gas Propane

NV35 NV40 3/16 in. (4.8 mm) 3/8 in. (9.5 mm) NV45 3/16 in. (4.8 mm) 3/8 in. (9.5 mm)

3/16 in. (4.8 mm) 7/16 in. (11.1 mm)

the air shutter, incrementally, to a more closed position until the proper ﬂame appearance is achieved.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

NOTE: The integrated ﬁnish trim is designed to be “ﬂush face” with a minimum thickness of 1 in. (25 mm) in a non-combustible wall. The ﬁreplace is supplied with 1/2 in. (13 mm) non-combustible wall material (Figure 45).

NOTE: A “ﬂush face” installation will require a minimum of an additional 1/2 in. (13 mm) non-combustible (installer-supplied) wall material (Figure 46) to create the minimum 1 in. (25 mm) thick wall.

NOTE: The integrated ﬁnish trim is adjustable to accommodate a wall thickness of an additional 1 in. (25 mm)—for a 2 in. (51 mm) total

4. Slide the ﬁnish trim in until it is ﬂush

with the ﬁnished wall surface. Tighten the nine (9) screws (Figure 44) securing the ﬁnish trim.

5. Install the surround trim assembly

by lowering it onto the appliance and pressing in to secure it (Figure 8).

6. Slide the left ﬁnish trim gap ﬁller

into the left gap between the ﬁnish trim and the surround trim assembly (Figure 47).

NOTE: Ensure the ﬁnish trim gap ﬁller slides into the spring clip, as shown.

Figure 47: Finished Installation

Spring Clip

thickness. NOTE: For wall thicknesses greater

than 2 in. (51 mm), remove the three integrated ﬁnish trim pieces (Figure 44).

Figure 45: Non-combustible Wall

15 1/2

(394)

Shaded area is non-combustible wall

7. Slide the right ﬁnish trim gap ﬁller

into the right gap between the ﬁnish

f i r e - p a r t s . c o m

trim and the surround trim assembly (Figure 47).

Figure 46: Wall Finishing

Combustible ﬁnished wall

materials

The shaded area must remain clear of combustible materials

Combustible

materials

not allowed

below this

point on the

face of the

appliance

15 1/2 in.

394 mm

Spacer

Top of Appliance

1 in. (25 mm) Minimum

NOTE: Ensure the ﬁnish trim gap ﬁller slides into the spring clip, as shown.

Top of Door Frame

NOTE: See Page 5 for Cold Climate Insulation and Page 6 for Clearances.

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LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Attach the Safety-in-Operation Warnings

NOTE: It is the installer’s responsibility to ensure these warnings are properly afﬁxed during installation. These warning labels are a critical step in informing

consumers of safe operation of this appliance.

Attaching Safety-inOperation Warnings

It is required that the set of safety instruction labels that have been furnished with the ﬁreplace be afﬁxed to the operation and control points of the ﬁreplace. A safety instruction label must be afﬁxed to the receiver wall switch plate where the ﬁreplace is turned on and off (Figure A) and on the remote control handheld transmitter (Figure B). To properly complete the installation of this ﬁreplace, locate the multi-lingual adhesive labels provided with the Care and Operation Instructions and proceed as follows:

1. Locate the wall receiver that controls the

ﬁreplace (verify the switch operates the ﬁreplace by turning it on and off). Clean the wall receiver plate thoroughly to remove any dust and oils. Afﬁx the label to the surface of the plate of the wall receiver that controls the ﬁreplace (Figure A). Choose the language primarily spoken in the home. If unknown, afﬁx the English language label.

2. Locate the remote control transmitter and

clean it thoroughly to remove any dust and oils. Afﬁx the label to the surface of handheld transmitter (Figure B). Choose the language primarily spoken in the home. If

f i r e - p a r t s . c o m

unknown, afﬁx the English language label.

3. If you are unable to locate the labels, please

call Lennox Hearth Products or your nearest Lennox Hearth Products dealer to receive additional safety instruction labels free of charge.

Cat. No. H8024 Replacement Label Kit Étiquettes de remplacement, n° cat. H8024 Juego de etiquetas de repuesto - Nº de cat. H8024

LENNOX HEARTH PRODUCTS 1-800-655-2008

NOTE: English is red text on clear label. French

and Spanish are white text on black label.

SAFETY LABEL DIAGRAMS DIAGRAMMES DES ÉTIQUETTES DE SÉCURITÉ DIAGRAMAS DE ETIQUETAS DE SEGURIDAD

Apposition des mises en garde relatives à la sécurité d’utilisation

Il est impératif que le jeu d’étiquettes de sécurité qui ont été fournies avec le foyer soient collées à côté des dispositifs de contrôle du foyer. Une étiquette de sécurité doit être collée sur la plaque du récepteur mural contrôlant l’allumage du foyer (Figure A) et sur le boîtier de la télécommande (Figure B). Pour achever l’installation correcte de ce foyer, procédez comme suit avec les étiquettes adhésives en langues étrangères fournies avec les instructions d’utilisation et d’entretien :

1. Repérez le récepteur mural qui contrôle le

foyer (vériﬁez que l’interrupteur contrôle le fonction -nement du foyer en le faisant basculer de Marche à Arrêt, et vice-versa). Nettoyez soigneusement la plaque du récepteur mural pour éliminer la poussière et les traces de graisse ou d’huile. Collez l’étiquette sur la surface de la plaque du récepteur mural qui contrôle le foyer (Figure A). Choisissez la langue qui est principalement parlée dans la résidence du propriétaire. En cas de doute, collez l’étiquette en anglais.

2. Repérez la télécommande et nettoyez-la

soigneuse ment pour éliminer la poussière et les traces de graisse ou d’huile. Collez l’étiquette sur le boîtier de la télécommande (Figure B). Choisissez la langue qui est principalement parlée dans la résidence du propriétaire. En cas de doute, collez l’étiquette en anglais.

3. Si vous ne trouvez pas les étiquettes, veuillez

appeler Lennox Hearth Products ou votre distribu teur Lennox Hearth Products local pour recevoir gratuitement des étiquettes supplémentaires.

LENNOX HEARTH PRODUCTS 1-800-655-2008

Remarqué : Le texte anglais est rouge sur un

support transparent. Le texte français et espagnol est blanc sur un support noir.

Colocación de advertencias de seguridad en operación

Se requiere que el juego de etiquetas de instrucciones de seguridad que se incluyeron con la chimenea se coloque en los puntos de operación y control de la misma. Se debe colocar una etiqueta de instrucciones de seguridad en la placa del interruptor de pared del receptor desde el cual se enciende y se apaga la chimenea (Figure A) y en el transmisor de control remoto (Figure B). Para completar correctamente la instalación de esta chimenea, encuentre las etiquetas adhesivas multilingües incluidas con las instrucciones de cuidado y operación y haga lo siguiente:

1. Identiﬁque el receptor de pared que

controla la chimenea (veriﬁque que el interruptor opera la chimenea encendiéndola y apagándola). Limpie bien la placa del receptor de pared para quitar el polvo y aceite. Pegue la etiqueta en la superﬁcie de la placa del receptor de pared que controla la chimenea (Figure A). Seleccione el idioma que más se habla en la casa. Si no sabe cuál es, use la etiqueta en inglés.

2. Identiﬁque el transmisor de control remoto

y límpielo bien para quitar el polvo y aceite. Pegue la etiqueta en la superﬁcie del transmisor (Figure B). Seleccione el idioma que más se habla en la casa. Si no sabe cuál es, use la etiqueta en inglés.

3. Si no puede encontrar las etiquetas,

sírvase llamar a Lennox Hearth Products o al distribuidor de Lennox Hearth Products más cercano para recibir etiquetas de instrucciones de seguridad adicionales gratuitas.

LENNOX HEARTH PRODUCTS 1-800-655-2008

Nota: La etiqueta en inglés es transparente con

texto rojo. Las etiquetas en francés y español son negras con texto blanco.

Figure A

Remote

Off

PRG

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure B

Page 32

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

INSTALLATION ACCESSORIES

Table 25: Listed Secure Vent™ Components

Catalog

Number

H1968 SV4.5HT-2

77L70 SV4.5L6 6 in. (152 mm) H1985 CTSO-33

77L71 SV4.5L12 12 in. (305 mm) H1987 CTSO-44

77L72 SV4.5L24 24 in. (610 mm) H1986 CTSO-46

77L73 SV4.5L36 36 in. (914 mm) 77L74 SV4.5L48 48 in. (1219 mm) 60L10 SF-18 18 ft (5.49 m)* compressed ﬂex

77L75 SV4.5LA

Models Description

Horizontal square termination

with ﬁrestop / spacer (H2246)

and adaptor (74L61)

Telescopic length slip section

(2–7 1/2 in., rigid)

Catalog

Number

H1988 CTSA-33

Models Description

Table 26: Listed Secure Flex™ Components

98K03 SF-12 12 ft (3.66 m)* compressed ﬂex

Chase top shroud kit, arch top,

3 x 3 ft

Chase top shroud kit, open top,

3 x 3 ft

Chase top shroud kit, open top,

4 x 4 ft

Chase top shroud kit, open top,

4 x 6 ft

77L76 SV4.5E45 45° Elbow H2248 SF4.5HF-10

77L77 SV4.5E90 90° Elbow H2249 SF4.5VF-10

77L78 SV4.5F Flat roof ﬂashing * 77L79 SV4.5FA 77L80 SV4.5FB 7/12–12/12 Adjustable ﬂashing * 77L88 SFKIT18S with 18 in. (457 mm)* compressed flex

77L81 SV4.5SC6 Storm collar (6/box) * 77L89 SFKIT24S with 24 in. (610 mm)* compressed flex

1/12–7/12 Adjustable ﬂashing * 77L87 SFKIT12S with 12 in. (305 mm)* compressed flex

H1969 SF4.5HT-2 without ﬂex

Firestop/spacer—horizontal, ﬂex

(3-1-1 spacing), 10 pk

Firestop/Spacer—vertical, ﬂex

(1-1-1 spacing), 10 pk

f i r e - p a r t s . c o m

H6183 SV4.5HF5 Firestop spacer, 5 in., rigid * 77L90 SFKIT36S with 36 in. (914 mm)* compressed flex H6184 SF4.5HF5 Firestop spacer, 5 in., ﬂex * 77L91 SFKIT48S with 48 in. (1219 mm)* compressed flex

H2246 SV4.5HF-10

H2247 SV4.5VF-10

96K92 SV4.5SP Support plate *

17M52 SV4.5HGS-1 Termination guard, square (1 pack)

17M53 SV4.5HGS-12

87L02 SV4.5HGS

H5820 SV4.5HTSK

H5816 SV4.5-TWSK10

H3907 SV4.5ARSA

96K93 SV4.5SU Support strap

Firestop/spacer—Horizontal,

rigid (3-1-1 spacing), 10 Pack *

Firestop/spacer—vertical,

rigid (1-1-1 spacing), 10 Pack *

Termination guard, horizontal

square (12 pack)

Termination guard for horizontal

square termination (deluxe) (1 pack)

Termination guard for horizontal

square termination (1 pack)

Through wall shield kit (used to shield the direct-vent pipe from

blown insulation)

Attic insulation shield w/

adjustable height, 12–22 in.

Horizontal square

termination for ﬂex

56L74 SFVT30

56L75 SFVT45

91L66 SFGC4-6

91L67 SFGC7-6

Vertical termination for ﬂex,

ﬂat–6/12

with ﬂex adaptor, section of rigid

vent, roof support collar assembly,

roof ﬂashing and storm collar

Vertical termination for ﬂex

6/12–12/12

with ﬂex adaptor, section of rigid

vent, roof support collar assembly,

roof ﬂashing and storm collar

Gear clamp

4 1/2 in. (114 mm) for ﬂex (6 pk)

Gear clamp

7 1/2 in. (191 mm) for ﬂex (6 pk)

10K81 SFMP

99L02 SV4.5HRK14 Horizontal Riser Kit, 14 in.

99L03 SV4.5HRK36 Horizontal Riser Kit, 36 in.

H8914 SV4.5TK90HT2 H8915 SV4.5TK90SS

* Flashing comes packaged with a storm collar.

Mill-Pac, black, high temperature

sealant

Horizontal Termination Kit with

SV4.5 90° elbow

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

H7748 H7748

36 in. Flex connector kit, 36 in. of ﬂex with two adapters for mating

two rigid sections of vent together

Page 33

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Table 27: Replacement Parts

NV35 NV40 NV45

Description

1 Surround Trim Assembly H8734 1 H8713 1 H8735 1 2 Glass Door H9017 1 H9018 1 H9019 1 3 Literature Kit H9020 1 H9020 1 H9020 1 4 Remote Control Receiver Wall Switch Kit H8752 1 H8752 1 H8752 1 5 Touch-Up Paint 90L73 1 90L73 1 90L73 1 6 Blower Assembly 80L84 1 80L84 1 80L84 1 7 Volcanic Stone 80L42 1 80L42 1 80L42 1 8 Electronic Pilot Assembly, Natural Gas H7268 1 H7268 1 H7268 1 9

Flex Hose Connector, 24 in. H8997 1 H8997 1 H8997 1

Flex Hose Connector, 12 in. H8979 1 H8979 1 H8979 1

Flex Hose, 10 in. H8724 1 H8724 1 H8724 1 12 Remote Control Kit H8753 1 H8753 1 H8753 1 13 ON/OFF Jumper H8809 1 H8809 1 H8809 1 14 Gas Valve, SIT Proﬂame, Natural Gas H7270 1 H7270 1 H7270 1 15 Shield Standoff H8980 1 H8981 1 H8982 1 16 Firebox Access Door Gasket H8983 1 H8983 1 H8983 1 17 Contemporary Burner Assembly H8984 1 H8985 1 H8986 1 18 Traditional Burner Assembly H9038 1 H9039 1 H9040 1 19 Vent Restrictor Base H8987 1 H8987 1 H8987 1

f i r e - p a r t s . c o m

20 Vent Restrictor Wing H8988 1 H8988 1 H8988 1 21 Gas Train Assembly Gasket H8989 1 H8989 1 H8989 1 22 Door Latch Assembly, Top H9063 1 H9063 1 H9063 1 23 Door Latch Assembly, Bottom H9064 1 H9064 1 H9064 1 24 Firebox Lamp H8991 1 H8991 1 H8991 1 25 Firebox Lamp Gasket H8993 1 H8993 1 H8993 1 26

Ceramic Glass, 4 1/2 x2 in. H8992 1 H8992 1 H8992 1 27 Control Module, SIT H8656 1 H8656 1 H8656 1 28 Brass Oriﬁce, Female #35 H8828 1 H8828 1 H8828 1 29 Brass Oriﬁce, Female #40 H8933 1 H8933 1 H8933 1 30 Brass Oriﬁce, Female #54 H8763 1 H8763 1 H8763 1 31 Brass Oriﬁce, Female #64 H8765 1 H8765 1 H8765 1 32 Brass Oriﬁce, Female #65 H8767 1 H8767 1 H8767 1 33 Brass Oriﬁce, Female #66 H8875 1 H8875 1 H8875 1 34

Flare 90° Elbow, 3/8 in. NPT (M) X 3/8 in. H8994 1 H8994 1 H8994 1 35

Flare Straight Fitting, 3/8 in. NPT (M) X 3/8 in. H8995 1 H8995 1 H8995 1 36 Split Valve H8996 1 H8996 1 H8996 1 37

Assembly Harness, Wall to Proﬂame II, 12 ft H8813 1 H8813 1 H8813 1 38 Assembly Harness, Valve to Proﬂame II H8814 1 H8814 1 H8814 1 39 Assembly Harness, Power to Proﬂame II H8811 1 H8811 1 H8811 1 40 Assembly Harness, Blower Plug-In H8817 1 H8817 1 H8817 1 41 Assembly Harness, Lights to Proﬂame II H8810 1 H8810 1 H8810 1 42 Assembly Harness, Split Flow to Proﬂame II H8812 1 H8812 1 H8812 1 43

Assembly Harness, Light and Fan Connector, 5 in. H8815 1 H8815 1 H8815 1 44 Volcanic Stone 80L42 1 80L42 1 80L42 1

Catalog Number

Qty

Catalog Number

Qty

Catalog Number

Contact a Lennox Hearth Products dealer to obtain any of these parts. Never use substitute materials. Use of non-approved parts can result in poor performance and

Qty

safety hazards.

WARNING

Failure to position the parts in accordance with these diagrams or failure to use only parts speciﬁcally approved with this appliance may result in property damage or personal injury.

AVERTISSEMENT

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 34

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

Figure 48: Replacement Parts

Remote

Off

PRG

f i r e - p a r t s . c o m

22 23

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Page 35

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

GAS CONVERSION KITS

WARNING

This conversion kit shall be installed by a qualiﬁed service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. If the information in these instructions is not followed exactly, a ﬁre, explosion, or the production of carbon monoxide may result; causing property damage, personal injury, or loss of life. The qualiﬁed service agency is responsible for the proper installation of this kit. The installation is not proper and complete until the operation of the converted appliance is checked as speciﬁed in the manufacturer’s instructions supplied with the kit.The qualiﬁed service agency performing this installation assumes responsibility for

f i r e - p a r t s . c o m

this conversion.

Cette trousse de conversion doit être installée par un technicien agréé, selon les instructions du fabricant et selon toutes les exigences et tous les codes pertinents de l’autorité compétente. Assurez-vous de bien suivre les instructions dans cette notice pour réduire au minimum le risque d’incendie, d’explosion ou la production de monoxyde de carbone pouvant causer des dommages matériels, des blessures ou la mort. Le tecnicien agréé est responsable de l’installation de cette trousse. L’installation n’est pas adéquate ni complète tant que le bon fonctionnement de l’appareil converti n’a pas été vériﬁé selon les instructions du fabricant fournies avec la trousse. Le fournisseur de service qualiﬁé ayant réalisé l’installation assume les responsabilités liées à la conversion.

AVERTISSEMENT

In Canada: The conversion shall be carried out in

accordance with the requirements of the provincial authorities having jurisdiction and in accordance with the requirements of the CAN/CSA-B149.1 Installation code.

La conversion devra être effectuée conformément aux recommandations des autorités provinciales ayant juridiction et conformément aux exigences du code d’installation CAN/ CSA-B149.1.

Gas conversion kits are available to adapt your appliance from the use of one type of gas to the use of another. These kits contain all the necessary components needed to complete the task including labeling that must be afﬁxed to ensure safe operation.

Refer to the instructions provided with the conversion kit when performing any gas conversion.

Table 28: Traditional Fireplaces— Natural Gas to Propane Conversion Kits

Models Catalog Number

NV35IN H8754 NV40IN H8722 NV45IN H8757

Table 29: Traditional Fireplaces— Propane to Natural Gas Conversion Kits

Models Catalog Number

NV35IN H8755 NV40IN H8756 NV45IN H8758

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Table 30: Contemporary Fireplaces— Natural Gas to Propane Conversion Kits

Models Catalog Number

NVCD35IN H8759 NVCD40IN H8760 NVCD45IN H8761

Page 36

LENNOX HEARTH PRODUCTS • SIGNATURE® SERIES DIRECT-VENT GAS FIREPLACES • ENVY/ENVY CD 35/40/45 • INSTALLATION INSTRUCTIONS

f i r e - p a r t s . c o m

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.

LENNOX®, the LENNOX design, DAVE LENNOX, the image of DAVE LENNOX and other related LENNOX marks are registered or common law trademarks of Lennox Industries Inc. and are used with permission.

P/N 506023-17 Rev. A 08/2013

DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

1508ElmHillPike,Suite108•Nashville,TN37210

Lennox ENVY, ENVY CD Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual