Lennox Direct-Vent Gas User Manual
INSTALLATION AND OPERATION MANUAL
™
Direct-Vent Gas
Fireplace Inserts
Retain These Instructions For Future Reference
P/N 775,221M Rev. A, 05/2007
A French manual is available upon request. Order P/N 775,221CF.
Ce manuel d’installation est disponible en francais, simplement
en faire la demande. Numéro de la pièce 775,221CF.
In 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-18b-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.
Medina™ (MED)
• 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
orifiCe size / altitude adjustment .................................................................... 4
fireplaCe requirements ................................................................................ 4
Codes & approvals..................................................................................... 4
requirements for the Commonwealth of massaChusetts ........................................ 5
pre-installation ......................................................................................6-8
features ............................................................................................ 6
paCkaging list ..................................................................................... 6
ratings ............................................................................................. 6
insert & fireplaCe dimensions .................................................................... 7
ClearanCes to Combustibles ....................................................................... 8
insert leveling ..................................................................................... 8
installation ......................................................................................... 9-11
venting installation ............................................................................... 9
zero ClearanCe fireplaCe installation ...........................................................10
log set installation ..............................................................................10
surround panels installation ....................................................................11
faCe installation ..................................................................................11
gas line installation ..................................................................................12
gas pressure requirements ......................................................................12
lp & natural gas supplies ......................................................................12
air shutter adjustment ..........................................................................12-13
operating instruCtions ............................................................................13-16
pre-lighting CheCklist ...........................................................................13
lighting instruCtions .............................................................................13
flame Color & behavior ..........................................................................14
paint Curing ......................................................................................15
quiet operation ...................................................................................15
blower operation .................................................................................15
operating options ................................................................................16
millivolt Control system ........................................................................16
maintenanCe & serviCing..........................................................................17-18
maintenanCe CheCklist ............................................................................17
glass maintenanCe ................................................................................17
door removal .....................................................................................18
fuel Conversion ..................................................................................18
blower removal ..................................................................................18
troubleshooting .......................................................................................19
replaCement parts ....................................................................................20
insert labels ......................................................................................21-22
produCt referenCe information .......................................................................23
2
Cautions & safety
FOR YOUR SAFETY do not install or operate your
Medina™ gas insert without first reading & understanding 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 insert 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 Medina gas insert must be vented
to the outside in accordance with the latest edition of
the National Fuel Gas Code.
This gas insert MUST be vented directly to the outside
& MUST NEVER be attached to a chimney serving a
separate solid fuel burning appliance. Each gas appliance MUST USE a separate vent system. Common vent
systems are PROHIBITED.
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 insert 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 insert 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 insert 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 insert. Clothing or any other flammable
material should not be placed on or near the insert.
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 insert. 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
insert 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!
3
Orifice Size/Altitude Adjustment
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.
If the factory-built fireplace has no gas access hole(s)
provided, an access hole of 1-1/2 inches (38 mm) or less
may be drilled through the lower sides or bottom of the
firebox in a proper workmanship like manner. This access
hole must be plugged with a non-combustible insulation
-
after the gas supply line has been installed. The installer
must mechanically attach the marking supplied with the gas
fireplace insert to the inside of the firebox of the fireplace
into which the gas fireplace insert is installed.
The Medina™ Insert
• 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.
Fireplace Requirements
These heaters are designed to be installed into an existing
masonry fireplace (built to UBC 37 or ULC S628 standards)
or factory built solid fuel, wood burning fireplace (listed to
UL 127 or ULC S610) only. All exhaust gases must be vented
outside the structure. Combustion air is drawn from outside
the structure. When installing in a factory built fireplace, the
fireplace grate must be removed and the damper must be
removed or secured open.
IMPORTANT: When installing these appliances into a factory built fireplace or heat-form, the air flow within and
around the fireplace shall not be altered by the installation
of the insert (i.e. DO NOT BLOCK louvers or cooling air
inlet or outlet ports, circulating air chambers in a steel
fireplace liner or metal heat circulator).
WARNING
THIS FIREPLACE HAS BEEN ALTERED TO
ACCOMMODATE A FIREPLACE INSERT AND
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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 insert 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.
SHOULD BE INSPECTED BY A QUALIFIED
PERSON PRIOR TO RE-USE AS A
CONVENTIONAL FIREPLACE.
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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
system.
Gas Equipment Venting System NOT Provided
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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
paCkaging list
features
Installation Options
Residential - Vented Vertical Only
Manufactured (Mobile) Home
Natural Gas Or Propane (LP)
Bedrooms
Optional Wall-mounted Or Remote Thermostat
Electrical
The fan motor requires 120 Volts AC for operation. The
fireplace is not dependent on the fan or an outside electrical
supply to operate.
Millivolt Valve
This insert is operated with a millivolt valve and therefore
burns even during a power outage.
Fuel
This insert comes from the factory equipped to burn natural
gas at
a specified elevation. The insert can be converted
to burn LP (liquid propane) by installing a conversion kit.
Only Lennox Hearth Products conversion kits can be used
to convert from NG to LP or LP to NG. Contact your Lennox
Hearth Products deale
r for details.
To install a Medina insert, an insert body, face, surround
(flange) kit are required.
Insert Body Packaging List
1 Insert Body with Burner Cassette
1 Log Set
1 Bag of Embers
1 Fasteners: 6 slotted 1/4" truss screws
6 speed nuts
9 spring clips
3 plastic adhesive wire restraints
1 Installation and Operation Manual
Decorative Faces - One Required
Traditional Black
Arch Black
Surround Kit (standard) - One Required
27" H x 39" W
Surround Kit Contents
1 Top Surround
2 Side Surrounds
3 Gold or Nickel Plated Trim Pieces
2 Elbowed Trim Fasteners
WARNING: Failure to position the parts in accordance
with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury.
Medina™ (MED)
RATINGS
Max/Min Input BTUh 0-2,000 Feet
(0-610 M)
Manifold Pressure (IN. WC)
Min. Inlet Pressure (IN. WC)
P4 Efficiency
Orifice (DMS) 0-2,000 Feet (0-610 M)u
uUnit factory equipped for 0-2000 FT/0-610 M, In Canada 0-4500 FT/0-1370 M
vTested to CSA P.4.1-02 “Testing Method for Measuring Annual Fireplace Efficiency.
Electrical Rating: 120 VAC, 60 HZ, Less Than 2 Amps
6
u
v
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
NATURAL GAS LP GAS
25,000/17,500 25,000/18,500
3.5 10.0
5.0 10.5
63.95% 67.20%
#41 (.096") #53 (.0595")
insert dimensions
A
B
C
D
31-1/4”(794mm)
7-1/4”
(184mm)
2-1/2”
(64mm)
15-3/4”
(400mm)
Air Intake
Flue
13”
(330mm)
14-1/2”
(368mm)
16”(406mm)
17-1/4”
(438mm)
7-1/2”
(191mm)
15-1/4”
(387mm)
minimum fireplaCe Cavity
Figure 1
Figure 2
Side View
Top View
Insert Dimensions
Width of insert behind Surround Panels 28" (711mm)
Rear height 17-1/4" (438mm)
Insert depth into fireplace 16" (406mm)
Flue center line from back of surround with 45º
collar
Flue center line from back of surround with 90º
collar
Flue collar diameter (OD) 2-15/16" 2-15/16" (75mm)
minimum fireplaCe opening required
13-3/4" (349mm)
13-1/2" (343mm)
A = 29-3/4” (756mm) Front Opening
B = 17-1/4” (438mm) Height
C = 19” (483mm) Rear Width
D = 16” (406mm) Fireplace Depth
* Top air duct will need to be removed for short ZC applica
tions. Replace tap tights when removed.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 3
CAUTIONS
• The fireplace in which this gas insert is to be
installed must be thoroughly cleaned if it has
been used to burn wood or synthetic logs. Have
the chimney and all inside surfaces of the fireplace brushed and vacuumed so that no soot,
embers, or loose combustion deposits can be
drawn into the heat circulation blower and blown
into the living area.
• If any portion of the chimney system shows signs
of structural or mechanical weaknesses, such
as: cracks, leaky joints, corroded or warped
surfaces, the faulty portion must be repaired
or replaced prior to installing this appliance.
• The factory built firebox must accept the insert
without modification other than removing bolted
or screwed together pieces such as baffles /
smoke shelf / deflectors, ash lips, glass door,
screen or door tracks, log grates, refractory or
masonry lining and damper assemblies. Any
fireplace component, which is removed, must be
retained so they can be reinstalled to restore the
fireplace to its original operating condition. The
removal of any part must not alter the integrity
of the outer shell of the pre-engineered fireplace
cabinet in any way. Any parts removed must be
replaceable. If any components are removed
from (or altered) from the existing fireplace,
a Warning Label (see Page 4) must be affixed
inside the fireplace firebox, so that it shall be
visible upon removal of the fireplace insert. Note:
RTV high temperature silicone is an approved
adhesive to affix the label.
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7
E
H
F
G
J
C
L
MANTEL
TRIM
Clearances to Combustibles
3"/76mm
3"/76mm
3"/76mm
1-1/2”
38mm
31-1/2”
800mm
33-1/2”
851mm
36-1/2”
927mm
39-1/2”
1003mm
minimum ClearanCes to Combustibles
E = 31-1/2" (800mm) from Top Facing to Bottom of
Insert
faCing and mantel ClearanCes
F = 25-1/2” (648mm) from Center of Glass to Side Facing
or Side Wall
J = 39” (991mm) from 10.5” (267mm) Mantel to Bottom
of Insert
hearth proteCtion
G = Minimum Hearth Protection from Front of Insert*
H = Vertical Distance from Insert Bottom to Combustible
Material.
G 13”(330mm) 10”(254mm) 0”(0mm)
H 0”(0mm) 2”(21mm) 4”(102mm)
Note: Hearth protection to be min. 3/8” (10mm) thick noncombustible or equivalent, with a k factor of .84.
insert leveling
At each front and rear corner of the insert is an adjustable leg
provided to level the insert should the hearth of the fireplace
be uneven. To adjust the legs, loosen the two 5/32" allen head
screws, move the leg to the desired height, and then tighten
the screws. Repeat these steps for each adjusting leg.
Facing &
Mantel -
Side View
Figure 4
ClearanCes
Mantel
Trim
8
Hearth / Floor Protection
Figure 5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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