Lennox Hearth Gas Stove User Manual

INSTALLATION AND OPERATION MANUAL

Direct-Vent

Gas Stove

Retain These Instructions For Future Reference

P/N 775,222M Rev. A, 05/2007

A French manual is available upon request. Order P/N 775,222CF.

Ce manuel d’installation est disponible en francais, simplement

en faire la demande. Numéro de la pièce 775,222CF.

I

n the Commonwealth of Massachusetts:

• Installation must be performed by a licensed plumber or gas tter

• See Table of Contents for location of additional Commonwealth of
Massachusetts requirements

Report No. 050-S-16b-5

WARNINGS

• Hot! Do not touch! The glass and surfaces of this appliance will be hot during operation and will
retain heat for a while after shutting off the appliance. Severe burns may result.

• Carefully supervise children in the same room as appliance.

Vision™ 25/35 (VIS25/35)

• Suitable for installation into masonry or factory built fireplaces. These appliances may be installed in an after­market permanently located, manufactured (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.

• Lennox™ gas-burning appliances are designed for use as a supplemental heater. They are not intended for
continuous use as a primary heat source.

WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result
causing property damage, personal injury or loss
of life.

FOR YOUR SAFETY
Do not store or use gasoline or other flammable

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

WHAT TO DO IF YOU SMELL GAS:

• DO NOT light any appliance.

• DO NOT touch any electrical switches.

• DO NOT use any phone in your building.

• Immediately call your gas supplier from a

neighbor’s phone. Follow your gas supplier's

instructions.

• If your gas supplier cannot be reached, call
the fire department.

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

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

POUR VOTRE SÉCURITÉ: Ne pas entreposer ni utiliser d'essence
ni d'autres vapeurs ou liquides inflammables à proximité de
cet appareil ou de tout autre appareil.

POUR VOTRE SÉCURITÉ: Que faire si vous sentez une odeur
de gaz:

• Ne pas tenter d'allumer d'appareil.

• Ne touchez à aucun interrupteur.

• Ne pas vous servir des téléphones se trouvant dans le bâti
ment

• 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 incendies.

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

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Table of Contents

Cautions & safety ..........................................................................................3

rifiCe size / altitude adjustment .........................................................................4

o

odes & approvals....................................................................................... 4-5

C

ommonwealth of massaChusetts requirements ......................................................5

C

re-installation .......................................................................................... 6-8

p

eatures .................................................................................................6

f

aCkaging list ..........................................................................................6

p

atings ..................................................................................................6

r

reparing your vision™ stove for installation ......................................................7

p

imensions ..............................................................................................7

d

learanCes to Combustibles ............................................................................8

C

nstallation ..............................................................................................9-10

i

nstalling door trim and spring handle ..............................................................9

i

riCk panel, log set & ember installation ......................................................... 10

b

ent installation ...................................................................................... 11-15

v

enting ................................................................................................ 11

v

esidential & mobile home installations ............................................................ 11

r

ent Considerations .................................................................................. 11

v

ent parts list ....................................................................................... 12

v

orizontal vent installation ......................................................................... 12

h

ertiCal vent installation ............................................................................ 13

v

lue restriCtors ..................................................................................... 13

f

orizontal terminations .............................................................................. 14

h

ertiCal terminations................................................................................. 14

v

ent termination loCations .......................................................................... 15

v

as line installation ...................................................................................... 16

g

as pressure requirements .......................................................................... 16

g
lp & n

perating instruCtions ................................................................................ 17-20

o
p
l
f
a
q
p
o
m

aintenanCe & serviCing.............................................................................. 21-23

m
m
m
v
o
g
f

roubleshooting ........................................................................................... 24

t

eplaCement parts list ................................................................................... 25

r

ire harness diagram .................................................................................... 26

w

tove labels .......................................................................................... 27-28

s

roduCt referenCe information ........................................................................... 29

p

atural gas supplies .......................................................................... 16

re-lighting CheCklist ............................................................................... 17

ighting instruCtions ................................................................................. 17

lame Color & behavior ............................................................................. 18

ir shutter adjustment .............................................................................. 19

uiet operation ....................................................................................... 19

aint Curing .......................................................................................... 19

perating options .................................................................................... 20

illivolt Control system ............................................................................ 20

aintenanCe CheCklist ................................................................................ 21

illivolt and systems CheCks ........................................................................ 21

ent pipe maintenanCe ................................................................................ 22

pening & removing door ........................................................................... 22

lass door Cleaning & maintenanCe ................................................................ 22

uel Conversion ...................................................................................... 23

2

Cautions & safety

FOR YOUR SAFETY do not install or operate your

Vision™ gas stove without first reading & understand

ing this manual. Any installation or operation of the
appliance deviating from that which is stated in this
manual WILL void the warranty & may be hazardous.

 INSTALLATION & REPAIR SHOULD ONLY BE DONE BY

A QUALIFIED SERVICE TECHNICIAN. DO NOT ATTEMPT
TO SERVICE THE APPLIANCE YOURSELF.

 The stove should be inspected & cleaned before use &

at least annually by a qualified service technician. More
frequent cleaning may be required due to excessive lint
from bedding material, carpeting, etc.

 It is imperative that control compartments, burners, &

circulating air passageways of the room heater be kept
clean.

 Adequate clearances around the combustion chamber

and accessibility clearances for servicing & proper
operation must be maintained.

 Turn off the gas before servicing this appliance. It is

recommended that a qualified service technician per­form an appliance check-up at the beginning of each
heating season.

 All installations must conform with all local, state,

& national codes. In the absence of local codes, the
installation must conform with National Fuel Gas Code
ANSI Z223.1-latest edition, also known as NFPA 54 (In
Canada, the current CAN/CSA B149.1 installation code).
Refer to the National Fuel Gas Code & local zoning &
code authorities for details on installation requirements.
Your Vision gas stove must be vented to the outside in
accordance with the latest edition of the National Fuel
Gas Code.

 This gas stove MUST be vented directly to the outside

& MUST NEVER be attached to a chimney serving a
separate solid fuel burning appliance. Each gas stove
MUST USE a separate vent system. Common vent sys­tems are PROHIBITED.

 This appliance uses room air for combustion. It is im-

perative that provisions for adequate combustion and
ventilation air be made. This appliance is NOT designed
to and will not operate in a negative pressure. Contact
your dealer if you suspect such a situation exists.

 Mobile home installations must conform with the Mobile

Home Construction and Safety Standard, Title 24 CFR,
Part 3280 (in Canada CAN/CSA Z240 MH), or, when such
a standard is not applicable, the Standard for Mobile
Home Installations, ANSI A225.1 - latest edition.

 The appliance, when installed, must be electrically

grounded in accordance with local codes or in the ab­sence of local codes, with the National Electrical Code,
ANSI/NFPA 70 - latest edition. In Canada, the current
CSA C22-1 Canadian Electrical Code - latest edition.

Your Lennox™ gas stove must be equipped for the

-

proper fuel type & altitude at which it will be operated.
Any operation outside the parameters outlined in this
manual may result in a hazardous condition & will void
the warranty. Please carefully read the sections pertain­ing to these subjects and/or be sure your appliance is
properly equipped.

 Do not use this stove if any part has been under water.

Immediately call a qualified service technician to inspect
the appliance & to replace any part of the control system
& any gas control which has been under water.

 Due to high temperatures, the stove should be located out

of traffic areas & away from furniture & draperies.

 Children & adults should be alerted to the hazards of

high surface temperature & should stay away to avoid
burns or clothing ignition. Young children should be
carefully supervised when they are in the same room as
the Lennox gas stove. Clothing or any other flammable
material should not be placed on or near the stove.

 Never use solid fuels such as wood, paper, cardboard,

coal, or any flammable liquids, etc., in this appli­ance.

Any grill, panel, or glass removed for service MUST be

replaced prior to operating the stove. Do not operate
appliance with the glass front removed, cracked or
broken. Replacement of the glass should be done by a
qualified service technician.

 DO NOT USE abrasive cleaner on the glass door assem-

bly. DO NOT ATTEMPT to clean the glass door when it
is hot.

 Gold & nickel plated surfaces must be cleaned with

glass cleaner & a clean soft cloth before firing the first
time or fingerprints will remain permanently. NEVER use
brass polish to clean gold or nickel, this will remove
the plating!!!

 When opening the lower door on the face while the stove

is burning, pull at the far left or far right vent openings,
because the door is hot during operation.

 Lennox Hearth Products, its employees, or any of its

representatives assume no responsibility for any dam­ages caused by an inoperable, inadequate, or unsafe
condition as a result of any improper operation, service
or installation procedures, whether direct or indirect.

 INSTALLER: THESE INSTRUCTIONS ARE TO REMAIN

WITH THE HOME OWNER!

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

3

Orifice Size/Altitude Adjustment

the vision™ stove

For altitudes above 2,000 feet (In Canada 4,500 FT/1370
M),the orifice should be de-rated by 4% for every 1,000 feet
to maintain the proper ratio of gas to air. Improper orifice
sizing may result in damage and unsafe conditions. Chang
ing the orifice should only be done by a qualified service
technician. Contact your Lennox Hearth Products dealer for
proper orifice sizes (see Page 23 for more information).

Codes & Approvals

CertifiCation

Gas appliances must be tested and certified by a nation­ally recognized testing and certification laboratory to ANSI
(American National Standard Institute) gas appliance safety
standards.

This stove has been tested and certified by OMNI -Test
Laboratories to ANSI Z21.88-2005/CSA 2.33-2005 Standard
for Vented Gas Fireplace Heater and CGA 2.17-M91 and UL
307B Gas Burning Heating Appliances for Manufactured
(Mobile) Homes.

It has met all necessary ANSI Standards and is fully certified
for installation in any community. If there are any questions
or if you need further substantiation either write to or call
your Lennox Hearth Products dealer. If you have further
questions, please contact Lennox Hearth Products.

• Must conform with all local, state, and national installation
codes. In the absence of local codes, the installation must
conform with National Fuel Gas Code ANSI Z223.1 - latest

-

edition, also known as NFPA 54 (In Canada, the current
CAN/CSA B149.1 installation code). Refer to the National
Fuel Gas Code and local zoning and code authorities for
details on installation requirements.

• Must conform with the Manufactured Home Construction
and Safety Standard, Title 24 CFR, Part 3280 (in Canada
CAN/CSA Z240 MH), or when such a standard is not
applicable, the Standard for Manufactured Home Instal
lations, ANSI A225.1 - latest edition for manufactured
(mobile) home installations.

• Must be vented directly to the outside in accordance with
the latest edition of the National Fuel Gas Code and must
never be attached to a chimney serving a separate solid
fuel burning appliance.

• Has been certified for use with either natural gas or pro
pane.

• Is not for use with solid fuels.

• Is approved for sitting rooms and/or bedrooms.

-

-

4

Commonwealth Of Massachusetts
Requirements

Note: The following requirements reference various Massachusetts
and national codes not contained in this document.

Inspection

The state or local gas inspector of the side wall horizontally vented gas
fueled equipment shall not approve the installation unless, upon inspection,
the inspector observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.

For all side wall horizontally vented gas fueled equipment installed in every
dwelling, building or structure used in whole or in part for residential
purposes, including those owned or operated by the Commonwealth and
where the side wall exhaust vent termination is less than seven (7) feet
above finished grade in the area of the venting, including but not limited
to decks and porches, the following requirements shall be satisfied:

Installation Of Carbon Monoxide Detectors

At the time of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gas-fitter shall observe that a hard
wired carbon monoxide detector with an alarm and battery back-up is
installed on the floor level where the gas equipment is to be installed.
In addition, the installing plumber or gas-fitter shall observe that a bat
tery operated or hard wired carbon monoxide detector with an alarm is
installed on each additional level of the dwelling, building or structure
served by the side wall horizontal vented gas fueled equipment. It shall
be the responsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard wired carbon
monoxide detectors.

In the event that the side wall horizontally vented gas fueled equipment
is installed in a crawl space or an attic, the hard wired carbon monoxide
detector with alarm and battery back-up may be installed on the next
adjacent floor level.

In the event that the requirements of this subdivision can not be met
at the time of completion of installation, the owner shall have a period
of thirty (30) days to comply with the above requirements; provided,
however, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.

Exemptions

The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:

• The equipment listed in Chapter 10 entitled “Equipment Not Required
To Be Vented” in the most current edition of ANSI Z233.1 / NFPA 54
(In Canada CAN/CSA B149.1 - current edition) as adopted by the
Board; and

• Product Approved side wall horizontally vented gas fueled equipment
installed in a room or structure separate from the dwelling, building
or structure used in whole or in part for residential purposes.

-

MANUFACTURER REQUIREMENTS

Gas Equipment Venting System Provided

When the manufacturer of Product Approved side wall horizontally vented
gas equipment provides a venting system design or venting system com
ponents with the equipment, the instructions provided by the manufacturer
for installation of the equipment and the venting system shall include:

• Detailed instructions for the installation of the venting system design
or the venting system components; and

• A complete parts list for the venting system design or venting sys
tem.

Gas Equipment Venting System NOT Provided

-

-

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accordance with the
above provisions shall comply with NFPA 720 and be ANSI/UL 2034
listed and IAS certified.

Signage

A metal or plastic identification plate shall be permanently mounted to
the exterior of the building at a minimum height of eight (8) feet above
grade directly in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in
print size no less than one-half (1/2) inch in size,

BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.”

“GAS VENT DIRECTLY

When the manufacturer of a Product Approved side wall horizontally
vented gas fueled equipment does not provide the parts for venting the
flue gases, but identifies “special venting systems”, the following require

ments shall be satisfied by the manufacturer:

• The referenced “special venting system” instructions shall be included
with the appliance or equipment installation instructions; and

• The “special venting systems” shall be Product Approved by the
Board, and the instructions for that system shall include a parts list
and detailed installation instructions.

A copy of all installation instructions for all Product Approved side wall
horizontally vented gas fueled equipment, all venting instructions, all
parts lists for venting instructions, and/or all venting design instructions
shall remain with the appliance or equipment at the completion of the
installation.

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

• The flexible gas line connector used shall not exceed 36 inches (92
centimeters) in length.

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

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5

Pre-Installation

features

Millivolt Valve

This stove is operated with a millivolt valve and therefore
burns even during a power outage.

Installation Options

Residential
Vented vertical and horizontal
Manufactured (mobile) home
Natural gas (NG) or propane (LP)
Bedrooms
Optional wall-mounted or remote thermostat

Venting

This stove can be vented with Security™ Secure Vent™
pipe*. Coaxial pipe diameters are 6-5/8” outer and 4” inner.
The combustion air for this stove is drawn from outside the
house through the outer DV (direct vent) pipe. Room air is
not required for combustion.

When planning your installation, select the correct length of
vent pipe for your particular requirements. Determine the
minimum clearance to combustibles from the rear of the
unit to the wall. It is also important to note the thickness
of the wall. Before cutting the vent hole through the wall
make sure that ALL vent and termination clearances (see
page 15) will be met.

Electrical

The standard fan motor requires 120 Volts AC for operation.
The stove is not dependent on the fan or an outside electri
cal supply to operate.

WARNING - Electrical Grounding
Instructions - This appliance is equipped with a three­prong (grounding) plug for your protection against shock
hazard and should be plugged directly into a properly
grounded three-prong receptacle. Do not cut or remove
the grounding prong from this plug.

* Other approved chimney brand is Simpson Dura-Vent DV-GS.

Fuel

This stove comes from the factory equipped to burn natural
gas at a specified elevation. The stove can be converted to
burn LP gas (liquid propane) by changing the cassette (valve
and pilot assembly) or installing a conversion kit. Only Len
nox Hearth Products conversion kits can be used to convert
from NG to LP or LP to NG. Contact your Lennox Hearth
Products dealer for details.

Specifications

Pipe:Type - direct-vent
Recommended manufacturer*
Security™ Secure Vent*
Diameter - 6-5/8”x 4” for all installations

Stove Packaging List

The Vision™ gas stove comes with the following parts:
1 Stove Body with Burner Cassette
1 150 CFM Blower
1 3/8”x 8” Gas Pipe
1 Brick Panel
1 Log Set
1 Bag of Ember Material

-

1 Installation and Operation Manual

Options

• Wall-mounted or Remote Thermostat

• Painted, Gold, or Nickel Plated Door Trim & Grill Assembly
(required)

-

Vision™ 35 (VIS35) Vision™ 25 (VIS25)

RATINGS

NATURAL GAS LP GAS NATURAL GAS LP GAS

Max/Min Input BTUh 0-2,000 Feet
(0-610 M)

Manifold Pressure (IN. WC)

Min. Inlet Pressure (IN. WC)

Maximum heat output BTUs/hour-steady state 29,050 29,050 20,750 20,750

P4 Efficiency

O

rifice (DMS) 0-2,000 Feet (0-610 M)u

u

w

uUnit factory equipped for 0-2000 FT/0-610 M, In Canada 0-4500 FT/0-1370 M
vThe Steady State Efficiency numbers based on maximum vent configuration.
wTested to CSA P.4.1-02 “Testing Method for Measuring Annual Fireplace Efficiency.

Electrical Rating: 120 VAC, 60 HZ, Less Than 2 Amps

6

35,000/23,000 35,000/23,500 25,000/17,500 25,000/18,000

3.5 10.0 3.5 10.0

5.0 11 5.0 11

61.65% 65.74% 65.08% 66.56%

#34 (.111 IN.) #50 (.070 IN.) #42 (.093 IN.) #53 (.059 IN.)

preparing your vision™ stove for installation

dimensions

Read all instructions before beginning your installation. If
instructions have not been read carefully, your installation
could void your warranty and may create a serious fire,
health, or other safety hazard.

The Lennox Hearth Products warranty will be voided if one
of the following occurs:

• Installation of any damaged stove or vent system
component.

• Unauthorized modification of the direct vent system.

• Installation other than as instructed by Lennox Hearth
Products, Security™ Chimneys, or Simpson Dura­Vent.

• Installation of any stove or vent system component not
manufactured or approved by Lennox Hearth Products,
Security™ Chimneys, or Simpson Dura-Vent.

When planning the installation for your Vision gas stove, it’s
necessary to consider the following:

• Where the unit is to be installed

• The vent system configuration to be used

• Gas supply (NG or LP)

• Electrical wiring

• Optional accessories (door trim/grill assembly and
wall-mounted or remote thermostat)

The gas line attaches to the gas valve at the back of the stove
2-1/2” in from the left side of the stove and 8-1/2” up from
the base of the unit. Test all gas connections for leaks with
a gas leak test solution.

top view

14-7/8”

(378mm)

Figure 2

front view

Figure 1

rear vent dimensions

Flue Collar

24-3/4”

(629mm)

28”

(711mm)

18-1/2”

(470mm)

32-1/2”

(826mm)

Figure 3

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

7

ClearanCes to Combustibles

alCove dimensions

Minimum clearances to combustible materials in inches
(millimeters):

Parallel Installation

2” (51mm)

15” (381mm)

Min.

24-1/4”

(616mm)

Min.

Figure 4

Corner Installation

The minimum width between the alcove side walls is 51”
1295mm). The minimum height of the alcove is 46” (1168mm)
and the maximum depth is 35” (889mm).

Alcove Dimensions

46”

(1168mm)

Min.

35”
(889mm)
Max.

51”
(1295mm)
Min.

90°

5-5/8”

(143mm)

10”

(254mm)

8-7/8”
(225mm)

10”

(254mm)

Figure 5

pipe ClearanCes

All installations using a vertical termination cap must
maintain one inch clearance between the direct vent pipe
and combustibles. For horizontal runs of pipe, one inch of
clearance to combustibles on the sides and bottom, and
two inches on the top of the pipe is required. See page 14
for allowable pipe configurations.

Figure 6

floor proteCtion

A non-combustible hearth pad is not required. This stove
may be installed on a combustible surface as long as the
combustible material (such as carpeting) does not extend
1-1/2” (38mm) vertically above the bottom of the base.
Also, the floor beneath the stove must be stable, level, hard,
and strong enough to support the stove without a tipping
hazard.

Carpet

1-1/2” Maximum

Leg on Combustible

Figure 7

8

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Installation

installing door trim and spring handle

CAUTION: Always ensure that plated surfaces are clean
and free of fingerprints before lighting stove. Fingerprints
will leave permanent blemishes if left on plated surface
when lit. When installation is complete, the trim should
be gently cleaned with a soft cloth and either alcohol or
glass cleaner. Do not overtighten nuts, overtightening can
create visible dimples on the plated surface.

To install the trim on the door, first see Opening and Remov
ing Door on page 22. Slide the threaded studs on the trim
through the holes in the door. Install the nuts on the studs
to secure the trim to the door. Do not over tighten the nuts
or they will snap the studs off. To install the spring handle,
first close the door and screw the handle into the receiving
nut. Then spray Windex or water on the shaft of the handle
to act as a lubricant. Next, twist the spring handle counter­clockwise onto the shaft. Use Windex or alcohol to remove
any fingerprints prior to firing the stove.

-

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

9

briCk panel and log set installation

Caution: If the logs are not properly installed, your stove
will not function correctly.

Parts list: rear log, right log, left log, center log, brick panel
(packaged separately)

1. Remove the logs from the box and carefully unwrap them.
The logs are fragile, so handle them with care.

2. Remove the brick retainer bracket from the upper left
corner inside the stove.

Brick
Retainer

Figure 8

3. Install the brick panel and replace the brick retainer
bracket.

4. Place the rear log on the back log supports. The charred
surface of the log should face the front.

Figure 10

6. The right front log (positioned with the black charred
surface toward the front) should be placed on the peg
protruding from the right side of the stove.

Figure 11

Right Log

7. Place the left log on burner supports with the charred
surface facing up. The left log will only fit on the burner
supports in one direction.

8. Place embers around the perimeter of the burner and
sparingly in field of burner. Do not block air holes on the
burner.

Left Log

Embers

Figure 9

Log Inserts

5. Place rockwool over ports. Rockwool can be placed to
obscure air holes, but do not cover the air holes.

* Fifty percent or less of rockwool supplied should be

used in LP installations. Too much rockwool will result
in tall sooty flames.

10

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure 12

9. Set center log on support with charred surface toward
you and rest against the rear log.

Figure 13

vent installation

Minimum Components for Horizontal Installation:

Venting:

The Vision™ gas stove has been tested and listed as a direct
vent heater system by OMNI-Test Laboratories, Beaverton,
Oregon and is recommended for use with Security™ Secure
Vent™ pipe*.

Important:

• Read all instructions carefully before starting the instal
lation. Failure to follow these instructions may create a
fire or other safety hazard, and will void the warranty.
Be sure to check for specific clearances to combustible
requirements on page 8.

Do not extend the venting sys­tem vertically or horizontally in excess of the distance
prescribed on page 14. Consult your local building codes

before beginning the installation.

• Always maintain the proper air spaces between the

vent pipe and nearby combustibles to prevent a fire
hazard. Do not fill air spaces with insulation. Be sure to

check the vent termination clearance requirements from
decks, windows, soffits, gas regulators, air supply inlets,
and public walkways, as specified in these installation
instructions on page 15 and local building codes.

• This gas stove and vent system must be vented directly

to the outside of the building, and never be attached to
a chimney serving a separate solid fuel or gas-burning
appliance. Each direct vent gas appliance must use its

own separate vent system. Common vent systems are
prohibited.

• The Vision gas stove is recommended for use with
Security™ Secure Vent pipe*. The appliances, and vent
manufacturers warranties will be voided, and serious fire,
health, or other safety hazards may result from any of the
following actions:

• Installation of any damaged direct vent compo
nent.

• Unauthorized modification of the direct vent sys
tem.

• Installation of any vent component part not approved
or manufactured by the approved vent manufac
turer.

• Installation other than as instructed by Lennox Hearth
Products and vent manufacturers instructions.

Horizontal Termination Kit which includes:

• 1 6-5/8”x 6” Black Pipe

• 1 Riser Vent Terminal

• 1 Wall Penetration Heat Shield (Wall Thimble) (2 pcs)

• 1 Decorative Wall Trim (black)

• 1 Tube Mill-Pac

• Screws

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Optional Components:

• 45º Elbow

• Vinyl Siding Shield for Riser Vent Terminal

• Vent Guard

• Snorkel Termination (36”)

• Snorkel Termination (14”)

• Wall Penetration Heat Shield

Vent Considerations

Twist-lock procedure: Four indentations on female ends of

pipes and fittings are designed to slide straight onto male
ends of adjacent pipes and fittings by orienting the four pipe
indentations so they match and slide into the four entry slots.
Push pipe sections completely together, then twist-lock one
section clockwise approximately one-quarter turn until the
two sections are fully locked. The female locking lugs will not
be visible from the outside on the pipe or fittings. They may
be located by examining the inside of the female ends.

Supports: Horizontal runs of vent must be supported every
3 feet. Wall straps are available for this purpose.

Pipe Sealing: If Simpson Dura-Vent pipe is used, the pipe
must be sealed as follows: seal both the inner and outer

­pipes with a high temperature silicone sealant rated for at
least 600º F (commonly know as “RTV”). Run a 1/8” bead

­of silicone around outside of male end of outer sleeve. Run
a 1/8” bead of silicone about 1/4” from the end of the male
inner pipe, which is found in the pipe to be attached above.

­Twist-lock the pipes or fittings together.

Female Locking

residential and mobile home installations:

These are the minimum pieces required. Other parts may
be required for your particular installation.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Sealant

Male
Locking
Lugs

Figure 14

11

vent parts list

Typical parts needed for a horizontal installation.

14” Snorkel for Vision 35
Standard Horizontal for Vision 25

Wall Thimble

Decorative Wall Trim

Pipe Length
max
min

Snorkel required for Vision 35 or
Vision 25 if horizontal run
exceeds 3 feet.

Direct vent pipe Security™ Secure Vent™ * may be used
with the Vision™ gas stove. Please see the lists below to
verify the components available from each direct vent pipe
manufacturer. Snorkel terminations are available for ap
plications which may require vertical rise on the building
exterior. The components listed below come in a galvanized
finish. Most of the components are also available in a painted
black finish. Add a “B” to the end of the part number when
ordering if a black part is desired.

seCurity - seCure vent 6-5/8”x 4” pipe

Part Number Description

SV4LC 6” Pipe Length
SV4L12 12” Pipe Length
SV4L24 24” Pipe Length
SV4L36 36” Pipe Length
SV4L48 48” Pipe Length
SV4LA 6” Pipe, Adjustable
SV4LA12 12” Pipe, Adjustable
SV4FA Flashing, 1/12 to 6/12 Roof Pitch
SV4FB Flashing, 7/12 to 12/12 Roof Pitch
SV4RSM Wall Radiation Shield
SV4E46 45º Elbow
SV4E90 90º Elbow
SV4VS Vinyl Shield Protector
SV4FC Storm Collar
SV4CGV Vertical Termination Cap
SV4BF Firestop
SV4CHC Horizontal Termination Cap
SV4STC36 Snorkel Termination Cap (36”)
SV4STC14 Snorkel Termination Cap (14”)

SV4BM Wall Band

Simpson Dura-Vent GS 6-5/8”x 4” Pipe
Part Number
908 6” Pipe Length
907 9” Pipe Length
906 12” Pipe Length
904 24” Pipe Length
903 36” Pipe Length
902 48” Pipe Length
911 11” to 14-5/8” Pipe, Adjustable
942 Wall Thimble
940 Rnd Support Box/Wall Thimble Cover
941 Cathedral Ceiling Support Box
943 Flashing, 0/12 to 6/12 Roof Pitch
943S Flashing, 7/12 to 12/12 Roof Pitch
945 45º Elbow
990 90º Elbow
950 Vinyl Siding Standoff
953 Storm Collar
963 Ceiling Firestop
988 Wall Strap
981 Snorkel Termination (36”)
982 Snorkel Termination (14”)
984 Horizontal Termination Cap
985 Horizontal Termination Cap (High Wind)
980 Vertical Termination Cap
991 Vertical Termination Cap (High Wind)

12

Description

horizontal vent installation

venting terminals may not be reCessed into a wall or

siding.

-

1) Set the unit in the desired location. Check whether or

not wall studs are in the way when the venting system is
attached. If wall studs are in the way, you may want to
adjust the location of the unit.

2) Assemble the desired combination of pipe and elbow to

the appliance adaptor with pipe seams facing down. Off
setting the pipe seams as double seams in one place will
cause the outer pipe to take an oval shape. The Horizontal
Termination Kit comes with 18” of straight vent - 6-5/8”
black outer pipe and 4” inner vent.

3) With the pipe attached to the stove, slide the stove into

its correct location, and mark the wall to the dimensions
of the wall thimble (9-1/4” x 10-1/4”). The center of
the round hole should line up with the centerline of the
horizontal pipe. (9-1/4” is side-to-side dimension and
10-1/4” is vertical dimension) If the wall being penetrated
is constructed of non- combustible material (i.e. masonry
block or concrete), a 7” diameter hole is acceptable.

4) The horizontal run of vent should have a 1/4” rise for every

1 foot of run toward the termination. Never allow the vent
to run downward. This could cause high temperatures

and may present the possibility of a fire.

5) The location of the horizontal vent termination on an ex

terior wall must meet all local and national building codes,
and must not be blocked or obstructed. For External Vent
Termination Locations, see page 13.

Snorkel Terminations: For installations requiring a vertical
rise on the exterior of the building, 14-inch and 36-inch tall
Snorkel Terminations are available, as well as the standard
Riser Vent. Follow the same installation procedures as
used for standard Horizontal Termination. NEVER install the
snorkel upside down.

Figure 15

-

-

Storm Collar

Vertical Termination
Cap

Ceiling Firestop

Framing 10”x 10”

Roof - Maintain 1”
Clearance to
Combustibles

Pipe
Length

Flashing

Hand break to remove
unwanted restrictor

Light Obstructor
(only used for Vision25 w/short
horizontal run & no flue restrictor)

Position 1

Flue Restrictor

Position 3

Position 2

A

14” Snorkel

min 12”

Figure 16

vertiCal vent installation

Important Notes

1. All vertically terminated vent installations use 6-5/8”x 4”
Security™ Secure Vent™ pipe*.

2. If the vent passes through a ceiling or floor, a firestop

- Simpson #963 or Security #SV4BF - is required.

3. If the vent passes through the roof, a roof flashing ­Simpson #943 or 943S or Security #SV4FA or SV4FB

- and storm collar - Simpson #953 or Security #SV4FC

- are required.

4. A 1-inch clearance from the vent pipe to combustible
materials must be maintained.

5. A maximum of either two 45º elbows or two 90º elbows
may be used. See page 14 for allowable offsets.

6. The maximum system height is 30 feet and the minimum
is 10 feet.

flue restriCtors

This stove requires a balanced flue to ensure proper com­bustion. As such, flue restrictors may need to be installed
depending on the vent configuration of your stove. The
drawings on the following page show all the allowable
pipe configurations for the Vision™ gas stove. To properly
install the flue restrictor, find your pipe configuration in the
drawings on the following page and note which restrictor
setting is recommended. The flue restrictor is shipped in
the firebox of your stove. To install the restrictor, see Figure

18. Remove the two 5/32” allen head screws (A below).
Using pliers, repeatedly bend the unwanted portion of the
flue restrictor and discard. Install the flue restrictor using
the two 5/32” allen head screws according to the diagram
below. Install the flue restrictor screws in their original holes
in the top of the firebox. Restrictor positions are based on

tests run in a laboratory.

Figure 17

Figure 18

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

13

horizontal terminations

1'

2'3'4'

5'6'7'

8'

9'

10'

11'

12'

13'

14'

15'

16'

17'

1'

2'

3'

4'

5'

6'

7'

8'

9'

10'

11'

12'

13'

14'

15'

16'

17'

18'

19'

20'

21'

22'

23'

24'

25'

0'

0'

Venting configurations
may not terminate
outside this parameter.

Vision 25 standard cap

#3

#2

#1

#2 #1

#1

Vision 35 requires
14” snorkel

12'

13'

14'

15'

16'

17'

18'

19'

20'

13'

14'

16'

17'

15'

2'

3'

6'

7'8'9'

10'

11'

12'

4'

5'

5'

6'

7'

8'

9'

10'

11'

3'

4'

1'

0'

1'

2'

0'

18'

19'

20'

21'

22'

23'

24'

25'

#3

#2

#2

#2

#1

#1 #1

The shaded areas in the diagram below show all allow­able combinations of vent configurations with horizontal
terminations. Horizontal sections of pipe require 1/4” of
rise for every 12” of run. A second 90 degree or 45 degree
elbow (in addition to the first 90 degree elbow at the top of
the vertical length of pipe) is allowed as long as the overall
length of the horizontal run of pipe does not exceed those
shown below. Use the restrictor positions indicated. Note
that if the termination cap falls in the unshaded area below
then no restrictor is installed in the stove.

To install the stove with pipe directly out the back, a snorkel
is not required for the Vision™ 25 gas stove. A snorkel is
required for the Vision 35 gas stove. See pages 12 & 13
for snorkel installation instructions.

vertiCal terminations

The diagram below shows all allowable combinations of
straight vertical and offset to vertical vent configurations
with vertical terminations. The termination must fall within
the shaded areas on the diagram. Use the indicated restrictor
positions. Offsets may consist of two 90 degree elbows OR
four 45 degree elbows.

Horizontal Terminations

Vertical Terminations

14

Figure 19

Figure 20

Combination of vertiCal and horizontal lengths Cannot exCeed 25’.

Straight Horizontal With No Vertical

Vision 25 LP 0-3’ horizontal.......................................Standard Horizontal Cap....................Use Light Obstructor

Vision 25 NG 0-3’ horizontal......................................Standard Horizontal Cap....................Use Light Obstructor

Vision 35 LP 0-3’ horizontal.......................................14” Snorkel Required.........................No Light Obstructor

Vision 35 NG 0-3’ horizontal......................................14” Snorkel Required.........................No Light Obstructor*

Offsets must remain within maximum and minimum lines.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

exterior horizontal vent termination ClearanCe requirements

V

V

V

V

V

F

C

B

B

A

B

H

M

I

X

V

D

V

A

A

A

V

L

B

J

X

E

V

A

G

*18”

18”

B

C

C

C

* See Item D in the Text Below.

Exterior Wall

Horizontal

Termination

Inside Corner

= Air Supply Inlet

Center Line

of Termination

DETAIL D

Ventilated Soffit

Fixed

Closed

Window

= Vent Terminal

Inside

Corner Detail

= 9" in U.S.
= 12" in C

Operable

Window

= Area where Terminal is NOT permitted

anada

3 ft.

3 ft.

Minimum Clearances Canadian Installation * US Installation **

A = Clearance above grade, veranda, porch, deck
or balcony.

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

C = Clearance to permanently closed window 12 inches (305 mm) recommended to prevent window

12 inches (30 cm) * 12 inches (30 cm) **

6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
12 in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and <
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances
> 100,000 BTU/hr (30kW)*

condensation

6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
9 in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*

9 inches (229 mm) recommended to prevent window
condensation

D = Vertical clearance to ventilated soffit located

18 inches (458 mm) 18 inches (458 mm)
above the terminal within a horizontal distance of 18
in. (458 mm) from the center line of the terminal

E = Clearance to unventilated soffit 12 inches (30 cm) 12 inches (30 cm)

F = Clearance to outside corner 5 inches (12.7 cm) 5 inches (12.7 cm)

G = Clearance to inside corner 6 in. (15 cm) 6 in. (15 cm)

H = Clearance to each inside of center line extended
above meter / regulator assembly

3 feet (91 cm) within a height of 15 feet above the meter /

regulator assembly *

3 feet (91 cm) within a height of 15 feet above the meter
/ regulator assembly **

I = Clearance to service regulator vent outlet 3 feet (91 cm) * 3 feet (91 cm) **

J = Clearance to non-mechanical air supply inlet
to building or the combustion air inlet to any other
appliance

K = Clearance to mechanical air supply inlet 6 feet (1.8 meters) * 3 feet (91 cm) above, if within 10 feet (3 m) horizon

L = Clearance above paved sidewalk or paved
driveway located on public property

M = Clearance under veranda, porch, deck or
balcony

6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 12

in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and <

100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances

> 100,000 BTU/hr (30kW)*

7 feet (2.13 m) ‡ 7 feet (2.13 m) ‡

12 in. (30 cm) * ‡ 12 in. (30 cm) ** ‡

6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 9
in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*

tally**

* In accordance with the current CSA-B149.1 National Gas and B149.2 Propane Installation Code - Latest Editions.

** In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Codes - Latest Edition.

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

*‡ Only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor.

Figure 21

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

-

15

Gas Line Installation

This stove must be connected to the gas line in accordance
with local codes and/or the National Fuel Gas Code, ANSI
Z223.1 (In Canada, the current CAN/CSA B149.1 installation
code). The gas line screws into the gas valve at the back
of the stove 2-1/2” in from the left side of the stove and 8­1/2”up from the base of the unit. After connecting the gas
line, all joints in the line and connections at the valve should
be checked for leaks.. After connecting the gas line, all joints
in the line and connections at the valve should be checked
for leaks using a gas leak test solution.

Fuel
Type

Natural

Gas

LP Gas 11" WC 11" WC 13" WC 10" WC 6.0” WC

Desired Minimum Maximum On Hi

7" WC 5" WC 10.5" WC 3.5" WC 1.8" WC

Inlet Pressure Manifold Pressure

On Lo

Fire

lp and natural gas supplies

Fire

gas pressure requirements

A MAJOR CAUSE OF OPERATING PROBLEMS WITH GAS
APPLIANCES IS IMPROPER GAS PRESSURE!

The most important item to check during the initial
installation and the first thing to check when operating
problems occur is gas pressure! This appliance will
not function properly unless the required gas pressure
is supplied. See the table on this page for gas pressure
requirements.

Two pressure taps are provided on the stove’s valve to check
gas pressures. To access the taps, remove the two socket
head screws from the valve control panel. The taps are
located below the on/off/pilot knob. The left tap is the inlet
(supply) pressure side. To check inlet pressure (with the stove
burning) insert a small flat-bladed screwdriver into the tap
and turn a half-turn counter-clockwise. Cover the tap with
the line from the manometer and check the pressure. Close
the tap gently but securely after completing the check. The
manifold (outlet) tap is to the right of the inlet tap. To check
manifold pressure (with the stove burning at the high burn
setting) insert a small flat-bladed screwdriver into the tap
and turn a half-turn counter-clockwise. Cover the tap with
the line from the manometer and check the pressure. Again,
close the tap gently but securely after completing the check.
Check the taps for gas leaks with a gas leak test solution
(retighten if necessary).

Your Vision™ gas stove is equipped from the factory for
use with natural gas only as specified on the Safety / Listing
label attached to the appliance. This appliance can only be
operated using propane gas (LP) if a certified fuel conver
sion kit provided by Lennox Hearth Products is installed by
a qualified service technician.

Also check the orifice size on the label on the igniter bracket.
It must be the correct size for the fuel and altitude.

Do not run propane tank dry. Running the tank dry may
cause a hazardous condition due to pressure drop in
empty tank.

Solid fuel is NOT to be used with this unit.

-

If the pressure is not sufficient, make sure the gas supply line
is large enough, the supply regulator improperly adjusted,
and the total gas load for the residence does not exceed the
amount supplied.

The appliance and its individual shut off valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig.

The appliance must be isolated from the gas supply piping
system by closing its individual manual shut-off valve
during any pressure testing of the gas supply piping system
at test pressures equal to or less than 1/2 psig. Check
with your gas supplier or plumber.

16

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Operating Instructions

pre-lighting CheCklist

Be sure to check these items before the initial lighting of
the stove:

c The stove gas label corresponds to the gas supply

available - that is “natural gas” for natural gas or “LP
gas” for LP gas.

c Gas pressure has been checked carefully - see page

16.

c All gas fittings have been checked for leaks.
c All clearances to combustibles have been met - see

page 8.

c All combustible materials have been removed from area

in front of the stove.

c All vented areas of the stove are unobstructed.
c House is ventilated to clear initial paint curing odors

- see page 19.

c All packaging materials have been removed from the

firebox.

c While stove is cool, fingerprints or other marks have

been cleaned from any gold or nickel surfaces with
denatured alcohol and a soft cloth. Marks left on these
surfaces may become etched into the finish if not
removed prior to burning the unit.

c Brick panel, log set, and embers have been installed.

c The glass door is in place and is properly sealed.

Lighting Instructions

The following is a copy of the operating and lighting instruc­tions found with each stove:

FOR YOUR SAFETY READ BEFORE OPERATING

WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS
EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING
PROPERTY DAMAGE, INJURY, OR LOSS OF LIFE.

CAUTION: HOT WHILE IN OPERATION. DO NOT TOUCH. KEEP
CHILDREN, FURNITURE, GASOLINE, AND OTHER LIQUIDS
WITH FLAMMABLE VAPORS AWAY. NEVER OPERATE UNIT
WITH GLASS OFF OR ATTEMPT TO REMOVE THE GLASS
WHILE HOT.

A. This appliance is equipped with a piezo ignition device

to light the pilot. When lighting the pilot, follow these
instructions exactly.

B. BEFORE LIGHTING, smell around the appliance area for

gas. Be sure to smell next to the floor, because some gas
is heavier than air and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS:

DO NOT try to light the appliance.
DO NOT touch any electric switch,
DO NOT use any phone in the 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.

C. Use only your hand to push in or turn the gas control

knob. Never use any tool. If the knob will not push in or
turn by hand, don't try to repair it, call a qualified service
technician. Force or attempted repair may result in a fire
or explosion.

D.

DO NOT use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system
and any gas control which has been under water.

OPERATING INSTRUCTIONS

CAUTION: Your Lennox™ gas APPLIANCE MUST ALWAYS
BE OPERATED WITH GLASS IN PLACE.

STOP!! Read the safety information above before pro­ceeding.

1. Open the lower door. Make sure gas supply shut-off cocks
are open and ON/OFF rocker switch is "OFF." If equipped
with a thermostat, set it to the lowest setting.

2. Turn off all electrical power to the appliance.

3. Push in gas cock dial slightly and turn clockwise to
"OFF."

NOTE: Dial cannot be turned from "PILOT" to "OFF" unless

dial is pushed in slightly. Do not force.

4. Wait five minutes to clear out any gas. Then smell for gas,
including near the floor. If you smell gas, STOP! Follow
"B" above. If you don't smell gas continue.

5. Locate the pilot by looking over the top of the left front
log. A blue flame will be seen when the pilot is lit.

6. Turn the gas control knob counter-clockwise to
the "PILOT" position.

7. Push the knob all the way in and hold in that position.
Immediately light the pilot by pressing the igniter button
several times until pilot is lit. Continue to hold the knob
in for about 30 seconds after the pilot is lit. Realease
knob and it will pop back out. Pilot should remain lit. If it
goes out, repeat steps 4-8 holding knob in an additional
15 seconds after pilot is lit. If knob does not pop out
when released, stop and immediately call your service
technician or gas supplier. If the pilot will not stay lit after
several tries, turn the gas control knob to "OFF" and call
your service technician or your gas supplier.

8. After pilot is lit, turn gas control knob counter-clockwise

to "ON." Knob can only be turned to "ON" if the

knob has popped out.

9. To turn burner on, turn "ON/OFF" rocker switch to "ON"
or set the thermostat to the desired temperature above
room temperature.

10. Adjust the flame height (and heat output) by turning the
flame height knob clockwise for full flame and
counter-clockwise for reduced flame.

11. Turn on the electric power to the appliance and set the
blower to the desired air flow after it turns on when the
appliance reaches operating temperature.

17

TO TURN OFF GAS TO APPLIANCE

ON

PILOT

OFF

HI

LO

Flame Color & Behavior

1. Turn off the "ON/OFF" rocker switch and/or thermostat (if
installed) to its lowest setting.

2. Turn off electric power to the appliance if service is to
be performed.

3. Push in gas control knob slightly and turn clockwise

to "OFF." Do not force.

This appliance needs fresh air for safe operation and
must be installed so there are provisions for adequate
combustion and ventilation air.

WARNING: Improper installation, adjustment, alteration,
service, or maintenance can cause injury or property dam­age. For assistance or additional information, consult a
qualified installer, service agency, or your gas supplier.

Operation of this appliance when not connected to a prop­erly installed and maintained venting system can result in
carbon monoxide (CO) poisoning and possible death.

SHUTDOWN PROCEDURE

To turn off the burner, turn the rocker switch to "OFF" or
adjust the thermostat (if installed) to a setting below room
temperature. The pilot will remain lit for future burner igni
tion. For complete shutdown, see "TO TURN OFF GAS TO
APPLIANCE" above.

Your Vision™ gas stove is designed for maximum heating
efficiency. Therefore, upon lighting of the main burner the
flames will be semi-transparent or “bluish.” After 10-20
minutes of operation the logs will heat up and the flames
will become a yellow/orange color.

Adjusting the stove to cause the flames to turn orange sooner
may result in poor combustion, sooting, and a hazardous
situation. See the drawing to the right showing proper flame
appearance.

Burner Flame Appearance

Soot at
Flame Tip

Dark Orange
Flame

No Blue Flame
Center

IMPROPERLY

BURNING FLAME

Soot above
Flame Tip

Ports on Pan

Burner Assembly

BURNING FLAME

No Soot at
Flame Tip

Semi-Transparent
Yellow Flame

Blue Flame
Center

PROPERLY

Figure 24

-

Pilot Flame Appearance

Flame Height
Control Knob

- LO / HI +

Figure 22

Figure 23

Gas Control Knob

(pilot/on/off)

SIT Millivolt Gas Valve

Gas Control Knob

(Pilot / On / Off)

On/Off

Switch

Flame Height Control

Knob (HI/LO)

Igniter

Blower

Figure 25

18

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

air shutter adjustment

Shutter Adjustment Handle

Locate in lower compartment to the right of the valve.

Turn the handle to the left to open and to the right to close.

quiet operation

CAUTION: Air shutter is hot while the Vision™ gas stove
is operating and should only be adjusted using a heat
resistant glove.

The air shutter control lever is located on the bottom of the
stove directly to the left of the gas valve. The lever is linked
to the primary air shutter on the main burner. The air shutter
regulates the amount of primary air the burner receives and,
therefore, how clean the stove burns. The air shutter should
only be adjusted by a qualified gas technician. The stove
should burn for about 15 minutes with the logs installed
before adjusting the air shutter. Moving the lever to the left
will open the shutter and turn the flames more transparent
and blue. Moving the lever to the right will close the shutter
and turn the flames more orange.

Caution: The air shutter
should never be set so as to make the tips of the flames
sooty or create sooting on the viewing glass, logs, or firebox
ceiling. If soot begins to form after burning, the air shutter
should be opened gradually until the sooting condition
stops. Gas quality and gas pressure may vary, which can
affect the burning characteristics of the stove.

As the Vision gas stove is burning, a number of normal op­erational sounds may be heard. The flow of gas through the
gas valve and orifice may make a rushing or whistling noise.
If this noise is objectionable, it can be reduced by turning
down the flame. Turning down the flame can reduce total
heat output by more than 30%. When the blower turns on,
the sound of rushing air may be heard. The blower sounds
may be reduced by adjusting the speed control located on the
blower assembly. Also, a slight clicking sound may be heard
as the gas valve or blower switch is turned on and off.

paint Curing

This stove has been painted with StoveBright high tempera­ture metallic paint. It leaves the factory dry to the touch, but
completes the curing process as the stove is used. To cure
the paint, burn the appliance four successive times for ten
minutes each time with a five minute cool down between
each firing. Also some parts of the appliance may be lightly
coated with machining oil. Ventilate the house during these
first firings as the paint and oil give off carbon dioxide and
unpleasant odors. It is recommended that persons sensi
tive to an imbalance in the indoor air quality avoid the stove
during the curing process.

-

Figure 26

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

19

operating options

Your stove comes equipped with an “On/Off” rocker switch
used to turn the burner on and off while the pilot light is
on. The switch is a round rocker switch located behind the
main control panel door.

A millivolt wall thermostat, or a remote control, can be used
to supplement the rocker switch. The gas valve is powered
by millivolts generated by the pilot assembly. This millivolt
system is very sensitive to electrical resistance, therefore,
make sure all connections are tight, clean, and free from
corrosion. Do not splice any millivolt wires. Consult the
table below to determine the proper gage of wire for the
thermostat or wall switch connections. This table refers
to the total length of the wire (out to the switch and back).
The thermostat must be a millivolt type. A 24-volt furnace
thermostat will not work. Never hook up household current

- 120 Volts - to the millivolt system. It is not recommended
to hook up any more than two switches to the stove (for
example a rocker switch and a wall thermostat). Additional
switches may affect the system resistance and increase the
chance of the burner not igniting.

Follow the instructions included with the thermostat or
remote control for wiring. The thermostat, remote control,
and rocker switch will turn the burner on and off indepen
dently. Be sure to set the rocker switch to the “Off” position
when using the thermostat or remote control, and set the
thermostat or remote control to the lowest temperature when
you wish to use the rocker switch only, otherwise one may

override the other.

millivolt Control system

This stove operates on a millivolt control system. As such,
no additional power supply is needed for the stove to heat.
The pilot assembly contains a thermocouple that, when
heated by the pilot flame, generates electricity (millivolts­mV=1/1000 of a volt) which opens a valve allowing gas to
continue flowing to the pilot assembly. The pilot assembly
also contains a thermopile that, when heated by the pilot
flame, generates electricity that flows to terminal #1 (labeled
TPTH) on the gas valve. When the electricity is conducted
from terminal #1 through the on/off switch, thermostat, or
receiver of the remote control to terminal #3 (labeled TH)
on the gas valve, the main burner will ignite.

-

Millivolt Control Schematic

Sparker

Piezo Igniter

Thermocouple

Pressure Taps

Gas Inlet

CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.

Figure 27

Pilot Hood

Thermopile

Pilot Assembly

Pilot Gas Line

ON/OFF Rocker Switch,
Thermostat, or Remote
Thermostat

Wire Size Maximum Length

12 Gage
14 Gage 64 Feet
16 Gage
18 Gage 25 Feet
20 Gage 16 Feet

Wiring Terminals

Thermostat Wire

Gas Valve

Terminal 2

100 Feet

40 Feet

Terminal 3Terminal 1

20

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Maintenance and Servicing

2. The viewing glass should be cleaned periodically (see
Glass Door Cleaning & Maintenance).

maintenanCe CheCklist:

The following should only be performed by a qualified
service technician.

Caution: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.

1. Annual inspection should be made and the following
checks performed:

oWhen unit is cool, open glass viewing door and inspect

burner for dirt, soot, and lint accumulations, and removeif
necessary. If excessive soot accumulation is present on
burner, have a qualified service technician adjust
burner for proper combustion.

oClean inside of glass viewing door with gas fireplace

glass cleaner. NEVER attempt to open door or clean
glass when unit is hot.

oCheck the hot air outlet vents for lint or other accumula-

tions. Never block or restrict vent openings or obstruct
flow of ventilation air.

oCheck that direct vent pipe, air intake, and flue are open

and free of soot, blockage, or debris.

oCheck gaskets once a year. Gaskets must be tight.

Replace if necessary.

oInspect the pilot system for proper flame. NEVER ADJUST

THE PILOT until after the gas pressure has been checked
and supply lines have been completely bled (this may
take an hour or more when bleeding through the pilot).
All pilots are checked and burned at the factory prior to
shipment. The pilot adjustment screw is located to the
lower left of the flame height control knob.

.2 Adjust the pilot screw to properly size the flames. The

flames should completely surround the thermopile
and thermocouple and extend across the main burner
tube ports. Be careful not to back the screw out of its
threads.

oCheck that the area around the stove is kept clear and

is free of combustible materials, gasoline, and other
flammable vapors and liquids.

oCheck the millivolt system as per the table on this

page.

3. Should repairs or maintenance of the stove require
the disassembly of the vent/air intake system, the
reassembly and resealing should be completed by a
qualified service technician and follow the instructions
on pages 11, 12 & 13 of this manual.

Millivolt and System Checks

Check

Test

A Complete

B Thermopile

C System

To

Test

System

Output

Resistance

See Figure 27 - Wiring Terminals

Connect

Meter

Leads to

Terminals

2 & 3 Closed 100 MV

1 & 2 Open Greater

2 & 3 Closed 2.5 Ohms

Thermostat

Connects

Meter

Reading

Should Be

or More

Than

325 MV

proper pilot flame appearanCe

Figure 28

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

21

vent pipe maintenanCe

glass door Cleaning and maintenanCe

Conduct an inspection of the venting system semiannually.
Recommended areas to inspect are as follows:

1. Check areas of the venting system which are exposed to
the elements for corrosion. These will appear as rust spots,
streaks, or, in extreme cases, holes. These components
should immediately be replaced.

2. Remove the cap and shine a flashlight down the vent.
Remove any bird nests or other foreign material.

3. Check for evidence of excessive condensate, such as
water droplets forming in the inner liner, and subsequently
dripping out at joints. Continuous condensate can cause
corrosion of caps, pipe, and fittings. It may be caused by
having excessive lateral runs, too many elbows, or exterior
portions of the system being exposed to cold weather.

4. Inspect joints to verify that no pipe sections or fittings
have been disturbed, and consequently loosened. Also
check mechanical supports such as wall straps or plumb
ers’ tape for rigidity.

opening and removing door

Caution: Do not open the glass door when the stove is
burning. Let the unit cool before opening the door.

Swing the front door open to access the two 5/32 screws
at the top of the glass frame and remove the two screws.
To remove the door, grasp it firmly with both hands and lift
it up. The glass door is fragile so it is important to place it
in a secure spot until reinstalled. To reinstall the door, the
bottom of the door must be inserted in the slot at the bot
tom of the firebox.

Cleaning: When cool, the glass may be cleaned with a clean,
soft cloth and glass cleaner. For cleaning white condensation
from the interior glass use KEL KEM gas stove glass cleaner
available from your stove dealer. Use of caustic or abrasive
cleaners may damage glass. Gold or nickel plated trim must
be cleaned with glass cleaner or denatured alcohol and a
soft cloth before firing or fingerprints and stains will remain
permanently. Never use abrasive polish to clean the gold or
nickel as it will ruin the finish. DO NOT operate stove with
broken glass. DO NOT clean door or glass when hot. DO
NOT abuse glass door by striking or slamming shut. DO NOT
use substitute materials if replacing glass. DO NOT spray
commercial glass cleaner with ammonia on the door and
glass gasket as it may dissolve the gasket glue.

WARNING: Do not operate appliance with the glass panel
removed, cracked, or broken. Do not remove glass door
while the stove is hot. Replacement of the glass door

-

should be done by a qualified service technician.

Glass Replacement: If the glass in your door is damaged

or broken, the complete door assembly (including gaskets)
must be replaced using part #H5991. The replacement door
assembly is available from your Lennox Hearth Products
dealer. The glass is neo-ceramic and alternative types must
not be used. See page 22 for door removal instructions.

WARNING: Do not operate appliance with the glass panel
removed, cracked, or broken. Do not remove glass door
while the stove is hot. Replacement of the glass door
should be done by a qualified service technician.

-

22

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

fuel Conversion

Converting the stove between natural gas (NG) and propane
(LP) can be accomplished by either changing the cassette
(valve and pilot assembly) or installing a conversion kit
(regulator, burner orifice, and repositioning the slide ori
fice of the pilot). Only a qualified service technician should
perform the conversion.

Conversion kit:

Please see instructions provided with conversion kit.

Cassette removal

Caution: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
and dangerous operation. Verify proper operation after
servicing.

1. Be sure the gas supply is shut off. The electrical supply
for the blower should be shut off at the electrical panel
before beginning the conversion. Disconnect the gas sup
ply from the stove, being careful not to apply pressure to
the valve in the process.

2. Remove the log set (see “Log Installation”).

3. Remove the two phillips head screws from the back of
the burner.

4. Lift the right end of the burner and slide if off the orifice

and shutter tube. Remove the burner from the firebox.

5. Remove the labeled cover through which the valve control

knobs protrude by removing the two screws securing it

and slide it off the valve knobs.

6. Mark and disconnect wires on valve terminals #1 and

#3 connected to the burner on/off switch, thermostat,
or remote control. Disconnect the igniter wire from the
control panel.

7. From inside the firebox, remove the two allen head screws
that fasten the log support in and remove the log support
piece.

8. From inside the firebox, remove all three of the allen head
screws (see Figures 29 & 30) fastening the cassette to
the firebox.

9. Grasp the cassette assembly from below the firebox and
lower the front edge away from the firebox.

10. Install the new, converted, or serviced cassette in the

reverse order of removal. All surfaces of the cassette
must be sealed to the firebox to ensure an air tight seal.
Replace damaged gasket.

11. All parts and wires must be correctly reinstalled to ensure

safe and proper operation of the unit.

-

-

Figure 29

Figure 30

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

23

Troubleshooting

NOTE: When troubleshooting the gas control system, be sure the external gas shut off valve, located at the gas sup­ply inlet is in the “ON” position.

IMPORTANT: Call your gas supplier or plumber for additional help with any gas control problem. Valve system
troubleshooting should only be accomplished by a qualified service technician.

SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION

Thin black coating
(soot) forms on the
viewing glass, logs, or
firebox.

Improper log or ember
placement.

Blocked flue.

See

Brick Panel, Log Set, & Ember Installation.

Check for obstructions in vent pipe, check for proper restrictor setting. See Flue Restric-
tors.

Improper air shutter
setting.

Humming or whistling
coming from fireplace.

A change in flame
appearance or burner
operation.

Pilot will not light. No gas supplied to unit.

Pilot will not stay lit
after carefully following
lighting instructions.

Normal operating noise.

Dirt in burner orifice.

A change in gas pres
sure.

Improper ember or log
placement.

Air in line.

Defective igniter (no
spark at electrode).

The valve control knob
is not turned to “pilot”
and pushed in.

Pilot flame is not sur
rounding thermocouple.

Thermocouple not
generating sufficient
voltage.

-

-

See Air Shutter Adjustment.

See

Quiet Operation. The noise may be reduced by slightly turning the flame down. Turning

the flame down will reduce the heat output of the fireplace.

Clean orifice.

Have your gas supplier check for correct gas pressure (7” W.C. natural gas; 11” W.C. LP
gas).

Brick Panel, Log Set, & Ember Installation.

See

Turn on gas.

To purge, hold in control knob in pilot position for 1-2 minutes and light.

Check for spark at electrode and pilot, if no spark and electrode wire is properly connected,
replace igniter.

See Lighting Instructions.

Check pilot flame adjustment (see

Check the connection between the thermocouple lead and the valve. Turn control knob to
“pilot” and push in and light pilot. While lit, take millivolt reading at lead going into valve’s
CPU. Minimum reading should be 17 millivolts. If less, replace thermocouple.

Maintenance & Servicing section).

Main burner will not
burn.

24

Air in gas supply line.

Pilot has gone out.

Rocker switch or
thermostat wires are
defective.

Thermopile may not be
generating sufficient
millivolts.

Purge air in pilot gas line by holding in control knob at “pilot” and sparking igniter. The air
in the line may take up to several minutes to purge.

See

Lighting Instructions.

Disconnect rocker switch and thermostat wires at terminals 1 and 3 on valve. Jumper
across from 1 to 3 with pilot lit. If burner comes on either rocker switch or thermostat wir­ing is not functioning.

Make sure thermopile is fully engulfed by the pilot flame. Check thermopile with millivolt
meter. With pilot lit and the rocker switch and thermostat off, the millivolt reading with the
meter connected to valve terminals 1 and 2 should be after 2 minutes at least 325. If the
thermopile lead connections are good at terminals 1 and 2 and readings are less than 325,
replace faulty thermopile.

Replacement Parts List

Vision™ 25/35 (VIS25/35)

Part Number Description

47515 Cassette Assembly, NG (if LP, also requires 75265 conversion kit
H6034 Burner Assembly
H5922 Pilot Assembly, NG or LP
H5942 Gas Control Valve, NG (if LP, also requires H5945 LP Regulator)
H5943 Regulator, NG
H5945 Regulator, LP
H5966 Orifice, Main Burner, #42 NG, 25,000 BTU
H5967 Orifice, Main Burner, #34 NG, 35,000 BTU
H5956 Orifice, High Altitude, Main Burner, NG, 25,000 BTU
H5957 Orifice, High Altitude, Main Burner, NG, 35,000 BTU
H5964 Orifice, Main Burner, LP #53, 25,000 BTU
H5970 Orifice, Main Burner, LP #50, 35,000 BTU
H5951 Orifice, High Altitude, Main Burner, LP, 25,000 BTU
H5959 Orifice, High Altitude, Main Burner, LP, 35,000 BTU
75265 Conversion Kit, NG to LP
75266 Conversion Kit, LP to NG
H3071 Blower
H5875 Blower Snap Switch
H5877 Blower Speed Control (rheostat)
H5744 On/Off Switch
46246 On/Off Switch Wires
H5745 Piezo Igniter
70006 Thermostat
70005 AC Remote Control Thermostat
71155 DC Remote Control Thermostat
H5660 Power Cord
H5871 Log Set
H5863 Bag of Embers (volcanic stone)
H5864 Bag of Rockwool
H5870 Brick Panel
H5991 Firebox Door w/Glass
H5992 Door Assembly Side w/Glass
H6011 Flue Restrictor
H6012 Sight Obstructer
H5918 Door Hinges, 2 per Stove
H5894 Spring Handle, Gold
H5895 Spring Handle, Nickel

)

25

Wire Harness Diagram

POWER CORD

SNAP SWITCH

GRN 6"

SPEED CONTROL SWITCH

BLOWER

BLK 6"

RED 12"

RED 7"

RED 8"

BLK 16"

8'

MALE SPADE 1/4"

FEMALE SPADE 1/4"

RING LUG CRIMP

FEMALE SPADE 1/4"

STRIP OUTER JACKET 6"

W

H
T

6"

2 PL. FEMALE SPADE 1/4"

FEMALE SPADE 1/4"

MALE SPADE 1/4"

FEMALE SPADE 1/4"

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after servicing.

Figure 31

26

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

CAUTION: YOUR COUNTRY GAS APPLIANCE MUST ALWAYS BE OPERATED WITH GLASS DOOR IN PLACE.
STOP! Read the safety information above before proceeding.

1. Open the lower door. Make sure gas supply shut-off cocks are open and ON/OFF
Rocker Switch is “OFF”. If equipped with a thermostat, set it to the lowest setting.

2. Turn off all electrical power to the appliance.

3. Push in Gas Control Knob slightly and turn clockwise to “OFF”.

NOTE: Knob cannot be turned from “PILOT” to “OFF” unless Knob is pushed in

slightly. Do not force.

4. Wait five (5) minutes to clear out any gas. If you smell gas, STOP! Follow “B” above. If
you don’t smell gas continue.

5.

Locate the pilot by looking at the center bottom of the back log.

Blue flame will

be seen when the pilot is lit.

6. Turn the gas control knob counterclockwise to the “PILOT” position.

7. Push the knob all the way in and hold in that position. Immediately light the pilot by pressing the igniter
button several times until pilot is lit. Continue to hold the knob in for about 30 seconds after the pilot is
lit. Release knob and it will pop back out.

Pilot should remain lit. If it goes out, repeat steps 4-8 holding knob in an additional 15 seconds after

pilot is lit.

• If knob does not pop out when released, stop and immediately call your service technician or gas
supplier.

• If the pilot will not stay lit after several tries, turn the gas control knob to “OFF” and call your service
technician or your gas supplier.

8. After pilot is lit, turn gas control counterclockwise to “ON”. Knob can only be turned “ON” if the knob has popped out.

9. To turn burner on, turn “ON/OFF” rocker switch to “ON” or set the thermostat to the desired temperature above room temperature.

10. Adjust the flame height (and heat output) by turning the flame height knob clockwise for reduced flame and
counterclockwise for full flame.

11. Turn on all electrical power to the appliance.

12. Set the blower to the desired air flow after it turns on when the appliance reaches operating temperature.

FOR YOUR SAFETY READ BEFORE OPERATING

1. To turn off the burner, switch the rocker switch to “OFF” or adjust the thermostat to a setting below room temperature

(if installed). The pilot will remain lit for future burner ignition.

For complete shutdown: See “TO TURN OFF GAS TO APPLIANCE” above.

SHUTDOWN PROCEDURE

OPERATING INSTRUCTIONS

WARNING:

IF YO U DO NOT FOLLOW THESE INST RUCTIONS EXACTLY, A FIRE OR EXPLOSIO N MAY RESULT CAUSING

PROPERTY DAMAGE, INJURY OR LOSS OF LIFE.

CAUTION:

HOT WHILE IN OPERATION. DO NOT TOUCH. KEEP CHILDREN, FURNITURE, GASOLINE AND OTHER LIQUIDS WITH

FLAMMABLE VAPORS AWAY. NEVER OPERATE UNIT WITH GLASS DOOR OFF OR ATTEMPT TO OPEN THE DOOR WHILE HOT.

A. This appliance is equipped with a piezo ignition device to light the pilot. When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING, smell around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air

and will settle on the floor.

WHAT TO DO IF YOU SMELL GAS:

• DO NOT try to light the appliance.

• DO NOT touch any electric switch; do not use any phone in the 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.
C. Use only your hand to push in or turn the gas control knob. Never use any tool. If the knob will not push in or turn by hand, don't try

to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

D. DO NOT use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance

and to replace any part of the control system and any gas control which has been under water.

1. Turn off the “ON/OFF” rocker switch and/or thermostat (if installed).

2. Turn off electric power to the appliance if service is to be performed.

3. Turn gas control knob clockwise to "OFF". Do not force.

This appliance needs fresh air for safe operation and must be installed so there are provisions for adequate
combustion and ventilation air. See Installation and Operation Manual accompanying appliance.

WARNING: Improper installation, adjustment, alteration, service or maintenance can
cause injury or property damage. For assistance or additional information, consult a
qualified installer, service agency or your gas supplier.

Operation of this appliance when not connected to a properly installed and maintained venting system can result
in carbon monoxide (CO) poisoning and possible death.

TO TURN OFF GAS TO APPLIANCE

POUR VOTRE SÉCURITÉ, LIRE AVANT L’ALLUMAGE

1. Fermez l’interrupteur et/ou le thermostat «MARCHE/ARRÊT».

2. Coupez l’alimentation électrique de l’appareil si vous prévoyez en faire le service.

3. Tournez le bouton de commande du gaz dans le sens des aiguilles d’une montre à “OFF”. Ne le forcez pas.

Cet appareil a besoin d’air frais pour opérer sécritairement et doit être installé pour qu’il y ait un apport en air suffisant. Référez-vous
aux manuels d’entretien et d’installation fournis avec l’appareil.

AVERTISSEMENT: Une installation inadéquate, un mauvais ajustement, une altération ou toutes autres modifications
inappropriés pourraient entraîner des blessures physiques et/ou des dommanges matériels. Référez-vous au guide
d’utilisation fourni avec ce foyer. Pour assistance ou information supplémentaires contactez un installateur qualifié,
un agent de service ou un fournisseur de gaz.

Si vous o pérez ce t appare il sans qu’il ne soit co rrectement raccordé à un conduit d’évacua tion, vo us pourr iez risquer d’être
empoisonné au monoxyde de carbone (CO) ce qui pourrait entraîner des conséquences grave ou la mort.

POUR COUPER L’ALIMENTATION EN GAZ DE L’APPAREIL

1. Pour a rrêter le b rûleur, mettre l’interru pteur à la positi on “O FF” ou ajustez le thermostat à une température en dessous de la

température ambiante. La veilleuse restera allumée pour permettre un alummage ultérieur.
Pour un arrêt complet: Consultez la procédure ci-dessus «POUR COUPER L’ALIMENTATION EN GAZ DE L’APPAREIL».

PROCÉDURE D’ARRÊT

ALLUMAGE

AVERTISSEMENT:

SI VOUS NE RESPECTEZ PAS RIGOUREUSEMENT LES INSTRUCTIONS CI-DESSOUS, VOUS POURRIEZ ENCOURIR UN RISQUE D’INCENDIE ET/OU

D’EXPLOSION QUI POURRAIENT CAUSER DES DOMMANGES MATÉRIELS ET CORPORELS POUVANT ENTRAÎNER LA MORT.

DANGER:

CET APPAREIL DÉGAGE DES TEMPÉRATURES ÉLEVÉES ET DEVRAIT ÊTRE INSTALLÉ À L’ÉCART DES ENDROITS TRÈS PASSANTS ET LOIN DES MEUBLES ET

RIDEAUX. GARDEZ LA ZONE AUTOUR DU FOYER EXEMPTE DE MATÉRIAUX COMBUSTIBLES, D’ESSENCE ET AUTRES VAPEURS ET LIQUIDES INFLAMMABLES.

A. Cet ap pareil utilise un système d’allumage par étincelle (allum eur Piézo-électrique) pour allumer la veilleuse. Assurez-vous de suivre

rigoureusement les instructions d’allumage de la veilleuse.

B. AVANT D’ALLUMER L’APPAREIL, assurez-vous qu ’il n’y a pas d’odeur de gaz près de l ’appareil ni près du sol car certains gaz plus

lourds que l’air auraient tendance à s’y accumuler en cas de fuite.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• N’ALLUMEZ aucun appareil.

• Ne touchez aucune prise électrique; N’utilisez aucun téléphone dans votre édifice.

• Sortez de la maison. À partir d’un autre endroit, appelez immédiatement votre fournisseur de gaz et suivez les directives.

• S’il est impossible de joindre le distributeur du gaz, appelez les pompiers.

C. N’utilisez aucun outil pour tourner ou pousser le dispositif de contrôle du gaz. Si vous ne pouvez le f aire manuellement, n’essayez

pas de réparer l’appareil. Appelez un technicien de service qualifié. Si vous tentez de forcer ou réparer le dispositif de contrôle du gaz
vous pourriez encourir un risque d’incendie et/ou d’explosion.

D. N’utilisez pas cet appar eil si une d e ses composantes a été émergée dans l’eau. Appe lez immédiat ement un technicien de service

qualifié et reconnu afin qu’il inspecte et remplace au besoin toutes pièces du système qui auraient été en contact avec l’eau.

DANGER: VOTRE APPAREIL AU GAZ LENNOX DOIT ÊTRE OPÉRÉ AVEC DES PORTES DE VERRE.
ATTENTION! Lisez les consignes de sécurité ci-dessous avant d’opérer votre appareil.

1. Ou vrir la po rte du ba s. Assurez -vous qu e l’alime ntation en gaz est à la posi tion Fer mée “OFF” . Si l’ap pareil es t

équippé d’un thermostat, placez-le à la température la plus basse.

2. Couper le courant électrique qui alimente l’appareil.

3. Enfoncez légèrement le bouton de contrôle du gaz et tournez-le dans le sens des aiguilles d’une montre à la position “OFF”.

NOTE: Le bouton de contrôle du gaz ne peut être tourné de la position “PILOT” à “OFF” sans qu’une légère pression ne soit appliquée.

4. Attendez au moins 5 minutes pour que le gaz qui se trouve dans la chambre de combustion puissse s’échapper. Si vous sentez une

odeur de gaz ARRÊTEZ! Référez-vous à la section B ci-dessus. Si vous ne sentez pas d’odeur de gaz, allez à la prochaine étape.

5.

Localisez le pilote au centre dans le bas de la bûche arrière.

Une flamme bleue est visible lorsque le veilleuse est

allumée.

6. Tournez le bouton de contrôle de gaz dans le sens inverse des aiguilles d’une montre pour le placer sur “PILOT”.

7. Cet appareil de chauffage est equipé d’un système d’allumage par étincelle (allumeur Piézo-électirque), devant être utilisé pour
l’allumage de la veilleuse. Poussez complètement le bouton de contrôle du gaz et le maintenir dans cette position. Appuyez
immédiatement sur le bouton (allumeur Piézo-électrique) situé à gauche du robinet de contrôle du gaz.L’étincelle produite par
l’allumeur Piézo-électrique doit allumer la veilleuse. Continuez à maintenir le bouton de contrôle dans cette position pendant environ 30
secondes après l’allumage de la veilleuse. Relâchez le bouton de contrôle du gaz qui reviendra à la position initiale. La veilleuse doit
rester allumée. Répétez les étapes 4 à 8 pendant 15 secondes supplémentaires si la veilleuse s’éteind.

• Si le bouton de contrôle du gaz ne revient pas à la position initiale une fois relâché, appeler immédiatement un technicien qualifié ou

votre distributeur de gaz.

• Si la veileuse ne reste pas allumée après plusieurs essais, tournez le bouton de contrôle du gaz à la position “OFF” et appelez

immédiatement un technicien qualifié ou votre distributeur de gaz.

8. Lorsque la veilleuse est allumée, tournez le bouton de contrôle du gaz dans le sens invers des aiguilles d’une montre pour le
placer à la position “ON”. Le bouton de contrôle peut-être tourné à la position “ON”seulement si il n’est plus enfoncé.

9. Pour allumer le brûleur, mettre l’interrupteur à la position “ON” ou ajustez le thermostat à la température souhaitée.

10. Ajustez la flamme et la température souhaitée en tournant le bouton de réglage de la flamme dans les sens des aiguille d’une montre
pour l’abaisser et dans le sens contraire pour l’augmenter.

11. Allumez l’alimentation électrique de l’appareil.

12. Ajustez le ventilateur au volume désiré lorsque l’appareil aura atteint la température de fonctionnement.

Part No./ No. Pièce #36242 Rev. A, 04/07

PILOT ASSEMBLY

Thermopile

Veilleuse à gaz

Igniter (electrode)
Allumeur

Thermocouple

Gas Pilot Hood

IGN

Gas Control Knob (pilot/on/off)
Bouton de contrôle (veilleuse/
ouverte/fermée)

Flame Height
Control Knob

- LO / HI +
(Commande De
Taille De Flamme)

ON

PILOT

OFF

HI

LO

Blower /

Ventilateur

On/Off Switch /

Interrupteur

Igniter /

Allumeur

Lighting Label

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

27

VIS

ALCOVE DIMENSIONS - DIMENSIONS – ALCOVE

MAXIMUM DEPTH / PROFONDEUR MAXIMUM 35”(889mm)

MINIMUM WIDTH / LARGEUR MAXIMUM 51”(1295mm)

MINIMUM HEIGHT / HAUTEUR MAXIMUM 46”(1168mm)

SEE OWNER’S MANUAL FOR OTHER ALCOVE

CLEARANCE CONFIGURATIONS.

RÉFÉREZ VOUS AU MANUEL D’INSTALLATION

POUR TOUT AUTRE DÉGAGEMENT REQUIS.

HEARTH PROTECTION

SEE INSTRUCTION MANUAL.

PROTECTIONS AU PLANCHER : RÉFÉREZ

VOUS AU MANUEL D’INSTALLATION.

* 16.5” (1295Mm) to sidewall in an alcove
* Dégagement des matériaux
Combustible pour les murs de côté
Dans une alcôve est 16.5 Po (1295mm)
De chaque côté.

MINIMUM CLEARANCES TO COMBUSTIBLES IN INCHES
DÉGAGEMENTS AUX COMBUSTIBLES - POUCES

2"

(51mm)

*15"

(381mm)

Combustible Wall

Mur Combustible

VENTED GAS FIREPLACE HEATER - NOT FOR USE WITH SOLID FUEL

MAY BE INSTALLED IN RESIDENTIAL BEDROOMS AND MANUFACTURED (MOBILE) HOMES.

TESTED TO ANSI Z21.88-2005/CSA 2.33-2005 “VENTED GAS FIREPLACE HEATERS”, UL307b, CSA P.4.1-02, AND CGA 2.17-M91.
THIS APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH LOCAL CODES, IF ANY. IF NOT, FOLLOW THE CURRENT ANSI

Z223.1/NFPA 54-LATEST EDITION (USA) OR CAN/CGA B149.1-LATEST EDITION (CANADA)

AND SAFETY STANDARD, TITLE 24 CFR,
PART 3280 FOR MOBILE HOMES. ALSO, APPLIANCE MUST BE INSTALLED IN ACCORDANCE WITH THE MANUFACTURER’S
INSTALLATION INSTRUCTIONS.

THIS APPLIANCE IS ONLY FOR USE WITH THE TYPE OF GAS INDICATED ON THE RATING PLATE AND MAY BE INSTALLED IN
AN AFTERMARKET, PERMANENTLY LOCATED, MANUFACTURED (MOBILE) HOME WHERE NOT PROHIBITED BY LOCAL CODES.
SEE OWNE R’S MANUAL FOR DETAILS. THIS APPLIANCE IS NOT CONVE RTIBLE FOR USE WITH OTHER GASES, UNLESS A
CERTIFIED KIT IS USED.

DANGER: RISK OF ELECTRICAL SHOCK. DISCONNECT POWER BEFORE SERVICING UNIT.

IF ELECTRICALLY C ONNECTED, CONNECTIONS AND GROUN DING MUST BE IN ACCORD ANCE WITH LOCAL CODES, IF ANY.
IF NOT, FOLLOW THE CURRE NT NATIONAL ELECTRICAL CODE ANSI/NFPA 70-LATEST EDITION (USA) OR CSA C22-1-LATEST
EDITION (CANADA).

VENT ING: THI S AP PLIANCE MU ST BE P ROPERLY CONN ECTED TO A V ENTING SYS TEM IN A CCORDAN CE WITH THE
MANUFACTURER’S INSTRU CTIONS. SEE MANUFACTURER’S INSTALLATION INSTRUCTIONS FOR APPROVED PIPE BRANDS
AND PIPE SEALING PROCEDURES.
FOR ALTITUDES ABOVE 2,000 FT/610M (IN CANADA 4500 FT/1370M) DE-RATE THE APPLIANCE BY FOUR (4)% FOR EVERY 1,000
FT (405 M).

THIS VENTED GAS FIREPLACE HEATER IS NOT FOR USE WITH AIR FILTERS.

Part No./ No. Pièce #36242 Rev. A, 05/2007 DO NOT REMOVE OR COVER THIS LABEL MADE IN U.S.A.

CAUTION:

HOT WHILE IN OPERATION. DO NOT TOUCH. SEVERE BURNS MAY RESULT. KEEP
CHILDREN, CLOTHING, FURNITURE, GASOLINE AND OTHER LIQUIDS HAVING FLAMMABLE VAPORS
AWAY. KEEP BURNER AND CONTROL COMPARTMENT CLEAN. SEE INSTALLATION AND OPERATING
INSTRUCTIONS ACCOMPANYING APPLIANCE. FOR USE WITH GLASS DOORS CERTIFIED WITH THIS
APPLIANCE ONLY. DO NOT OPERATE THE APPLIANCE WITH GLASS REMOVED, CRACKED OR BROKEN.
REPLACEMENT OF THE PANEL(S) SHOULD BE DONE BY A LICENSED OR QUALIFIED PERSON.

WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN
CAUSE INJURY OR PROPERTY DAMAGE. REFER TO THE OWNER’S INFORMATION MANUAL PROVIDED
WITH THIS APPLIANCE. FOR ASSISTANCE OR ADDITIONAL INFORMATION CONSULT A QUALIFIED
INSTALLER, SERVICE AGENCY OR GAS SUPPLIER.

ALCOVE OR PARALLEL /

POSITION PARALLÈLE OU

POSITION DE L'ALCÔVE

CORNER /
POSITION
EN COIN

MANUFACTURED BY / FABRIQUÉ PAR:

LENNOX HEARTH PRODUCTS

PO BOX 987

AUBURN, WA., USA 98071

MODEL

VISION™

MODÈLE

Report No. / Número de Rapport

050-S-16b-5

SERIAL

NO.

FACTORY EQUIPPED FOR NATURAL GAS. IF CONTROL PANEL CONTRADICTS THIS LABEL, UNIT FUEL TYPE HAS BEEN CONVERTED.

CET APPAREIL EST MUNI D’ÉQUIPEMENT POUR L’USAGE DU GAZ NATUREL. SI L’ÉTIQUETTE DU PANNEAU DES COMMANDES CONTREDIT

CETTE ÉTIQUETTE, C’EST QUE LE TYPE DE CARBURANT DE CET APPAREIL A ÉTÉ CONVERTI.

RATINGS Vision 35 (VIS35) Vision 25 (VIS25)

NATURAL GAS LP GAS NATURAL GAS LP GAS

MAX/MIN INPUT BTUH 0-2,000 FT (0-610 M)*

35,000/23,000 35,000/23,500 25,000/17,500 25,000/18,000

MANIFOLD PRESSURE (IN. WC)

3.5 10.0 3.5 10.0

MIN. INLET PRESSURE (IN. WC)

5.0 11 5.0 11

ORIFICE (DMS) 0-2,000 FT (0-610 M)*

#34/.111 IN. #50/.070 IN. #42/.093 IN. #53/.059 IN.

*UNIT FACTORY EQUIPPED FOR 0-2000 FT/0-610 M, IN CANADA 0-4500 FT/0-1370 M

ELECTRICAL RATING: 120 VAC, 60 HZ, LESS THAN 2 AMPS

DATE OF MANUFACTURE / DATE DE FABRICATION

2007 2009 20102008

JANV

JAN

FEVR

FEB

MARS

MAR

AVR

APR

MAI

MAY

JUIN

JUN

JUIL

JUL

AOÛT

AUG

SEPT

SEP

OCT

OCT

NOV

NOV

DEC

DEC

90°

5-5/8”

(143mm)

10”

(254mm)

10”

(254mm)

8-7/8”

(225mm)

Combustible Wall

Mur Combustible

HOMOLOGUÉ FOYER RADIANT PRÉFABRIQUÉ AU

GAZ -NE PAS UTILISER AVEC DU COMBUSTIBLE SOLIDE

MAY BE INSTALLED IN RESIDENTIAL BEDROOMS AND MANUFACTURED (MOBILE) HOMES.
TESTÉ SELON LA NORME ANSI Z21.88-2005/CSA 2.33-2005 «FOYER RADIANT AU GAZ», UL307B, CSA P.4.1-02, ET CGA 2.17-M91.
CET APPAREIL DOIT ÊTRE INSTALLÉ CONFORMÉMENT AUX EXIGENCES DES CODES RÉGIONAUX ET DU CODE D’INSTALLATION

ANSI NFPA 54-DERNIÈRE ÉDITION (ETATS-UNIS), OU CAN/CGA-B149.1-DERNIÈRE ÉDITION (CANADA) POUR LES MAISON MOBILE
LE STANDARD DE SÉCURITÉ EST TITLE 24CFR, PART 3280 . CET APPAREIL DOIT ÊTRE INSTALLER SELON LES SPÉCIFICATIONS
DU MANUFACTURIER.

CET APPAREIL DOIT ÊTRE UTILISÉ AVEC LE TYPE DE GAZ INDIQUÉ SUR LA PLAQUE SIGNALÉTIQUE ET PEUT ÊTRE INSTALLÉ
DANS UNE MAISON PRÉUSINÉE OU DANS UNE MAISON MOBILE FIXE, LÀ OÙ LES CODES RÉGIONAUX LE PERMETTENT. VOIR LE
MANUEL D’ENTRETIEN POUR PLUS DE DÉTAILS. CET APPAREIL NE PEUT PAS ÊTRE CONVERTI POUR L’USAGE AVEC D’AUTRES
TYPES DE GAZ À MOINS D’UTILISER UNE TROUSSE DE CONVERSION HOMOLOGUÉE.

DANGER: RISQUE DE CHOC ÉLECTRIQUE. DÉBRANCHEZ L’APPAREIL AVANT D’EN FAIRE L’ENTRETIEN.
SI L’ APPAREI L REQUIERT UN BRANCHEMENT É LETRIQUE, LE S RACCORDEME NTS ET LA MISE À LA TERRE DOIVENT ÉTRE

CONFORMES AUX EXIGENCES DES CODES RÉGIONAUX ET DU CODE D’INSTALLATION ANSI/NFPA 70 OU CSA C22-1.

CON DUIT: CE T APPARE IL DOIT ÊTRE IN STALLE R SEUL EMENT AV EC UN CO NDUIT D’ÉVAC UATION
RECOMMANDÉ PAR LE MANUFACTURIER. TOUJOURS SE RÉFÉRER AU MANUEL D’INSTALLATION.

EN ALTITUDE, AU-DELÀ DE 2000 PI/610 M, (AU CANADA 0-4500 PI/0-1370M) LA CAPACITÉ ÉNERGÉTIQUE DE
L’APPAREIL DIMINUE DE QUATRE (4)% POUR CHAQUE 1000 PI (405 M).

CE FOYER RADIANT AU GAZ À ÉVACUATION N’EST PAS CONÇU POUR ÊTRE UTILISÉ AVEC DES FILTRES À AIR.

DANGER:

CET APPAREIL DÉGAGE DES TEMPÉRATURES ÉLEVÉES ET DEVRAIT ÊTRE
INSTALLÉ À L’ÉCART DES ENDROITS TRÈS PASSANTS ET LOIN DES MEUBLES ET RIDEAUX.
SURVEILLEZ LES ENFANTS QUI SE TROUVENT DANS LA PIÈCE. GARDEZ LA ZONE AUTOUR DU
FOYER EXEMPTE DE MATÉRIAUX COMBUSTIBLES, D’ESSENCE ET AUTRES VAPEURS ET LIQUIDES
INFLAMMABLES. MAINTENEZ LE BRÛLEUR ET LE BOÎTIER DES COMMANDES PROPRE EN TOUT
TEMPS. VOIR LES MANUELS D’INSTALLATION ET D’ENTRETIEN QUI ACCOMPAGNENT L’APPAREIL.
SEUL LE PANNEAU VITRÉ FOURNI PAR LE MANUFACTURIER PEUT ÊTRE UTILISÉ AVEC CET APPAREIL.
EN AUCUN CAS, L’APPAREIL NE PEUT ÊTRE UTILISÉ SANS LA VITRE OU AVEC LA VITRE BRISÉE. LE
REMPLACEMENT DE LA VITRE DOIT ÊTRE EFFECTUÉ PAR UN TECHNICIEN DE SERVICE QUALIFIÉ.

AVERTISSEMENT: UNE INSTALLATION INADÉQUATE DE MÊME QU’UN AJUSTEMENT, UNE
MODIFICATION, UNE RÉPARATION OU UN ENTRETIEN INCORRECTS PEUVENT CAUSER DES
BLESSURES OU DOMMAGES À LA PROPRIÉTÉ. RÉFÉREZ-VOUS AU MANUEL D’ENTRETIEN LIVRÉ AVEC
CET APPAREIL. POUR DE L’ASSISTANCE, CONSULTEZ UN INSTALLATEUR QUALIFIÉ, UNE ENTREPRISE
DE SERVICE OU UN FOURNISSEUR DE GAZ.

SPÉCIFICATIONS

Vision 35 (VIS35) Vision 25 (VIS25)

GAZ NATUREL GAZ PROPANE GAZ NATUREL GAZ PROPANE

ENTRÉE MAX/MIN BTU/HR 0-4500 pi (0-1370
M)*

35000/23000 35000/23500 25000/17500 25000/18000

PRESSION À LA SORTIE (IN. WC/C.E.)

3.5 10.0 3.5 10.0

PRESSION MINIMUM D’ENTRÉE DU GAZ
(IN. WC/C.E.)

5.0 11 5.0 11

ORIFICE (DMS) 0-4500 pi (0-1370 M)*

#34/.111" #50/.070" #42/.093" #53/.059"

* L’APPAREIL PRÉUSINÉ EST MUNI D’ÉQUIPEMENT POUR 0-2000 PIEDS (0-610 M). AU CANADA 0-4500 PIEDS (0-1370M).

SPÉCIFICATIONS ÉLECTRIQUE 120 VCA, 60 HZ, MOINS DE 2 AMPÈRES

NE PAS RETIRER CETTE ÉTIQUETTE Fabriqué aux U.S.A. IGN

Poêle

Poêle

Stove

Stove

Safety / Listing Label

28

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

�

WARRANTY

Your gas stove is covered by a limited warranty (provided with appliance).
Please read the warranty to be familiar with its coverage.

Retain this manual. File it with your other documents for future refer
ence.

PRODUCT REFERENCE INFORMATION

We recommend that you record the following important information
about your fireplace. Please contact your Lennox Hearth Products dealer
for any questions or concerns. For the number of your nearest Lennox
Hearth Products dealer, please call 877-247-3673.

REPLACEMENT PARTS

Normally, all parts should be ordered through your Lennox Hearth
Products distributor or dealer. Parts will be shipped at prevailing prices
at time of order.

When ordering repair parts, always give the following information:

-

1. The model number of the appliance.

2. The serial number of the appliance.

3. The part number.

4. The description of the part.

5. The quantity required.

6. The installation date of the appliance.

If you encounter any problems or have any questions concerning the
installation or application of this system, please contact your distributor,
or Lennox Hearth Products directly:

See Page 25 for a complete replacement parts list. Use only parts sup­plied from the manufacturer.

Your Fireplace Stoves's Model Number __________________________________

Your Stove’s Serial Number ___________________________________________

The Date On Which Your Stove Was Installed _____________________________

The Type of Gas Your Stove Uses ______________________________________

Your Dealer's Name _________________________________________________

Fuel Type (Check one) cNatural Gas cPropane Gas (LP)

LENNOX HEARTH PRODUCTS
PO Box 987
Auburn, WA 98071
Visit us at www.Lennox.com

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

29

Lennox™ 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.

Printed in U.S.A. © Lennox Hearth Products 2007

P/N 775,222M REV. A 05/2007

1110 West Taft Avenue • Orange, CA 92865