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.
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-
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.
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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
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1 Installation and Operation Manual
Options
• Wall-mounted or Remote Thermostat
• Painted, Gold, or Nickel Plated Door Trim & Grill Assembly
(required)
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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
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