Desa Comfort Glow CVTR18 Quick start guide

NATURAL GAS LOG
WARNING:Iftheinformationinthismanualisnot
followed exactly, a fire or explosion may result
causing property damage, personal injury, or
loss of life.
— Donotstoreorusegasolineorotherflammable
vaporsandliquidsinthevicinityofthisorany
other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Donottouchanyelectricalswitch;donotuse
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the fire department.
— Installationandservicemustbeperformedby
a qualified installer, service agency, or the
gas supplier.
WARNING: Improper installa-
tion,adjustment,alteration,ser-
vice,ormaintenancecancause
injuryorpropertydamage.Re-
fer to this manual for correct
installation and operational
procedures. For assistance or
additional information consult
a qualified installer, service
agency, or the gas supplier.
WARNING: This appliance is
for installation only in a solid-
fuelburningmasonryorUL127
factory-built fireplace, con-
structed of noncombustible
material, and connected to a
working flue. (See page 7 for
minimum flue opening.)
WARNING: This is a gas-fired appliance. It uses air (oxygen) from the room in which
it is installed. Provisions for adequate combustion and ventilation air must be
provided.Referto AirforCombustionandVentilation sectiononpage4ofthismanual.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by
state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
VENTED DECORATIVE APPLIANCES
OWNER’S OPERATION AND INSTALLATION MANUAL
Save this manual for future reference.
Models CVTR18
and CVTR24
RGA 2-72
APPROVED
TESTED AND
LISTED BY
Std RADCO Listing No. 1292

2
901049
VENTED NATURAL GAS LOGS
SAFETY
INFORMATION
Carbon Monoxide Poisoning: Early
signs of carbon monoxide poisoning re-
semble the flu, with headaches, dizziness,
ornausea.Ifyouhavethesesigns,thelogset
maynot beworking properly.Getfreshair
atonce!Havelogsetserviced.Somepeople
are more affected by carbon monoxide than
others. These include pregnant women,
peoplewithheartorlungdiseaseor anemia,
those under the influence of alcohol, and
those at high altitudes.
Natural Gas: Natural gas is odorless. An
odor-making agent is added to the gas. The
odor helps you detect a gas leak. However,
theodoraddedtothegascanfade.Gasmay
be present even though no odor exists.
Make certain you read and understand all
Warnings. Keep this manual for reference.
It is your guide to safe and proper operation
of this log set.
WARNING ICON G 001 WARNINGS
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper-
ate, or service this log set. Im-
properuseofthislogsetcancause
seriousinjuryordeathfromburns,
fire, explosion, electrical shock,
and carbon monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
WARNING:Anychangetothis
log set or its controls can be
dangerous.
1. This appliance, as supplied, is only for
use with the type of gas indicated on
the rating plate. This appliance is con-
vertible for use with propane/LP, using
the GA9053 or GA9153 pilot kit.
2. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do
not use any phone in your building
• immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions
• ifyoucannot reach your gas supplier,
call the fire department
3. Never install the log set
• in a recreational vehicle
• wherecurtains,furniture, clothing, or
otherflammable objects are less than
42inchesfromthefront,top,orsides
of the log set
• in high traffic areas
• in windy or drafty areas
4. Before installing in a solid fuel burn-
ingfireplace,thechimneyflue and fire-
box must be cleaned of soot, creosote,
ashes and loose paint by a qualified
chimney cleaner. Creosote will ignite
if highly heated. Inspect chimney flue
for damage.
5. You must operate this log set with a fire-
placescreeninplace. Makesurefireplace
screen is closed before running log set.
6. This log set is designed to be smoke-
less. If logs ever appear to smoke, turn
off appliance and call a qualified ser-
vice person. Note: During initial op-
eration,slightsmokingcouldoccur due
to log curing and the burning of manu-
facturingresidues.Youmay wish to add
more ventilation by opening a window.
7. To reduce the creation of soot, follow
the instructions in Cleaning and Main-
tenance, page 17.
8. Do not allow fans to blow directly into
the fireplace. Avoid any drafts that al-
ter burner flame patterns. Ceiling fans
can create drafts that alter burner flame
patterns. Altered burner patterns can
increase sooting.
9. Do not use a blower insert, heat ex-
changer insert or other accessory not
approved for use with this log set.
10. This log set needs fresh,outsideair ven-
tilation to run properly. See Air for
Combustion and Ventilation, pages 4
through 6.
11. Do not run log set
• where flammable liquids or vapors
are used or stored
• under dusty conditions
12. Do not burn solid fuel in the fireplace
after installing the log set. Do not use
this log set to cook food or burn paper
or other objects.
13. Log set becomes very hot when in use.
Keepchildren and adults away fromhot
surface to avoid burns or clothing igni-
tion. Log set will remain hot for a time
after shutdown. Allow surface to cool
before touching.
14. Carefully supervise young children
when they are in the room with log set.
15. Donotuse applianceifany parthas been
exposedtoor under water. Immediately
call a qualified service technician to in-
spect the room appliance and to replace
any part of the control system (if using
GA9053 or GA9153) and any gas con-
trol which has been under water.
16. To help prevent breakage, new logs
must be broken-in (see Curing logs
page 13).
17. Turn log set off and let cool before ser-
vicing, installing, or repairing. Only a
qualified service person should install,
service, or repair log set.
WARNING: Keep flue open
when operating unit.

3
901049
OWNER’S MANUAL
PRODUCT
IDENTIFICATION
Figure 1 - Product Identification
OPTIONAL
PRODUCT
FEATURES
ON/OFF SAFETY VALVE/
PILOT KIT AND PROPANE/LP
CONVERSION
An optional valve/safety pilot kit with a
piezo ignitor is available for this appliance.
This system requires no matches, batteries,
or other sources to light. You must use this
optional system for LP conversion. See Ac-
cessories, page 17.
REMOTE CONTROL READY
(MILLIVOLT) SAFETY VALVE/
PILOT KIT
An optional millivolt valve/safety pilot kit
with a piezo ignitor is available for this
appliance.Thissystemrequiresnomatches,
batteries, or other sources to light. This
systemmaybeconnectedtoawallswitchor
hand-held wireless remote control. See Ac-
cessories, page 17.
REMOTE CONTROL
ACCESSORIES
There is an optional hand-held ON/OFF
remote control that can be purchased sepa-
rately for this log set. You must use the
millivoltvalve/safetypilotkitto useremote
accessories with this appliance. See Acces-
sories, page 17.
UNPACKING
CAUTION: Do not remove the
metal data plates from the burner
pan. The data plates contain im-
portant product information.
1. Remove logs, hearth kit, pan materi-
als, and hardware from carton.
2. Remove all protective packaging ap-
plied to logs and base for shipment.
3. Check all items for any shipping dam-
age. If damaged, promptly inform
dealer where you bought the product.
LOCAL CODES
Install and use log set with care. Follow all
localcodes.Intheabsenceoflocalcodes,use
the latest edition of The National Fuel Gas
CodeANSZ223.1,alsoknownasNFPA54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Grate
Burner
Pan
Valve
Cover
Front
Burner
Rear Burner
Serial Number ________________________________________

4
901049
VENTED NATURAL GAS LOGS
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, Sec-
tion5.3,AirforCombustionandVentilation.
Allspacesinhomesfallintooneofthethree
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 will
help you classify your space and provide
adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and win-
dows may provide enough fresh air for
combustion and ventilation. However, in
buildings of unusually tight construction,
you must provide additional fresh air.
Unusually tight construction is de-
fined as construction where:
a. walls and ceilings exposed to the
outside atmosphere have a con-
tinuous water vapor retarder with
a rating of one perm (6x10-11 kg
per pa-sec-m2) or less with open-
ings gasketed or sealed and
b. weather stripping has been
added on openable windows and
doors and
c. caulking or sealants are applied
to areas such as joints around
window and door frames, be-
tween sole plates and floors,be-
tween wall-ceiling joints, be-
tween wall panels, at penetra-
tionsforplumbing,electrical,and
gas lines, and at other openings.
If your home meets all of the three
criteria above, you must provide ad-
ditional fresh air. See Ventilation Air
From Outdoors , page 6.
If your home does not meet all of the
three criteria above, proceed to De-
terminingFresh-AirFlowForLogSet
Location , page 5.
Today’s homes are built more energy effi-
cient than ever. New materials, increased
insulation, and new construction methods
helpreduceheatlossinhomes.Homeowners
weatherstrip andcaulk aroundwindows and
doorstokeepthecoldairoutandthewarmair
in. During heating months, home owners
want their homes as airtight as possible.
While it is good to make your home energy
efficient,yourhomeneedstobreathe.Fresh
air must enter your home. All fuel-burning
appliances need fresh air for proper com-
bustion and ventilation.
Exhaustfans,fireplaces,clothesdryers,and
fuel burning appliances draw air from the
house to operate. You must provide ad-
equate fresh air for these appliances. This
will insure proper venting of vented fuel-
burning appliances.
AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This appliance
shall not be installed in a con-
fined space or unusually tight
construction unless provisions
are provided for adequate com-
bustion and ventilation air. Read
the following instructions to in-
sure proper fresh air for this and
other fuel-burning appliances in
your home.
Confined and Unconfined Space
The National Fuel Gas Code (ANS Z223.1,
1992 Section 5.3) defines a confined space
as a space whose volume is less than 50
cubicfeetper1,000Btuperhour(4.8m3per
kw) of the aggregate input rating of all
appliances installed in that space and an
unconfined space as a space whose volume
is not less than 50 cubic feet per 1,000 Btu
per hour (4.8 m3per kw) of the aggregate
inputratingofallappliancesinstalledinthat
space.Rooms communicatingdirectlywith
the space in which the appliances are in-
stalled*, through openings not furnished
with doors, are considered a part of the
unconfined space.
This log set shall not be installed in a con-
fined space or unusually tight construction
unlessprovisions are provided for adequate
combustion and ventilation air.
*Adjoiningroomsarecommunicatingonly
iftherearedoorlesspassagewaysorventila-
tion grills between them.

5
901049
OWNER’S MANUAL
DETERMINING FRESH-AIR FLOW FOR APPLIANCE LOCATION
Determining if You Have a Confined or Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install appliance plus any adjoining rooms with doorless passageways or ventilation grills
between the rooms.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = _________________cu. ft. (volume of space)
Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_____________ (volume of space) ÷50 cu. ft. = (maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) ÷50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Gas fireplace logs _____________ Btu/Hr
Gas water heater* _____________ Btu/Hr
Gas furnace _____________ Btu/Hr
Vented gas heater _____________ Btu/Hr
Vent-free heater _____________ Btu/Hr
Other gas appliances* + _____________ Btu/Hr
Total = _____________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_____________ Btu/Hr (maximum the space can support)
_____________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space can support)
95,000 Btu/Hr (actual amount of Btu/Hr used)
ThespaceintheaboveexampleisaconfinedspacebecausetheactualBtu/HrusedismorethanthemaximumBtu/Hrthespacecansupport.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoin-
ing room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
AIR FOR
COMBUSTION AND
VENTILATION
Continued
Example:
Gas water heater 40,000 Btu/Hr
Gas fireplace logs + 55,000 Btu/Hr
Total = 95,000 Btu/Hr
Continued
WARNING: If the area in which the appliance may be operated is smaller than that defined as an unconfined
spaceorifthebuildingisofunusuallytightconstruction,provideadequatecombustionandventilationairbyone
ofthe methods describedinthe NationalFuel GasCode,ANS Z223.1,1992,Section 5.3 or applicable localcodes.

6
901049
VENTED NATURAL GAS LOGS
AIR FOR
COMBUSTION AND
VENTILATION
Continued
Figure 3 - Ventilation Air from Outdoors
Figure 2 - Ventilation Air from Inside Building
Outlet
Air Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
VENTILATION AIR
Ventilation Air From Inside
Building
Thisfreshairwouldcomefromanadjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must pro-
vide two permanent openings: one within
12" of the ceiling and one within 12" of the
floor on the wall connecting the two spaces
(seeoptions1and2,Figure2).Youcanalso
remove door into adjoining room (see op-
tion 3, Figure 2). Follow the National Fuel
Gas Code NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
WARNING: Rework work-
sheet, adding the space of the
adjoiningunconfinedspace.The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two per-
manent openings: one within 12" of the
ceiling and one within 12" of the floor.
Connecttheseitemsdirectlytotheoutdoors
orspacesopentotheoutdoors.Thesespaces
include attics and crawl spaces.
IMPORTANT: Do not provideopenings for
inlet or outlet air into attic if attic has a
thermostat-controlledpowervent.Heatedair
enteringtheatticwillactivatethepowervent.

7
901049
OWNER’S MANUAL
INSTALLATION
WARNING: Before installing
in a solid fuel burning fireplace,
thechimneyflueandfireboxmust
be cleaned of soot, creosote,
ashes and loose paint by a quali-
fied chimney cleaner. Creosote
willigniteifhighlyheated.Adirty
chimneyfluemaycreateanddis-
tribute soot within the house. In-
spect chimney flue for damage.
NOTICE:Installation,service,and
repair of this appliance must be
performedbyaqualifiedinstaller,
service agency, company or gas
supplier experienced with this
type of gas appliance. Only fac-
toryauthorizedcomponentslisted
intheseinstructionsmaybeused
in accordance with the
manufacturer’s instructions and
allcodes and requirementsof the
authorityhavingjurisdiction.Any
modifications to this kit, or use of
unauthorized components or ac-
cessory items will void the
manufacturer’swarranty,andmay
result in a hazardous condition.
CHECK GAS TYPE
Useonlynaturalgas.Ifyourgassupplyisnot
naturalgas, you mustinstall ON/OFF Safety
Valve/Pilot Kit (see Accessories, page 17).
Call dealer where you bought log set.
If the fireplace does not have a gas supply
shut-off valve, one must be installed.
CAUTION: Do not remove
the metal data plates attached
totheburnerpan.Thedataplates
contain important warranty in-
formation.
FLUE OPENING
SPECIFICATIONS
Note: This vented appliance must be in-
stalledonlyinasolid-fuel burningfireplace
witha working flueand constructed ofnon-
combustible material.
The charts in Figure 4 indicate technical
information regarding the installation of
yourgas logset. Pleasemakesure thatall of
the specifications shown are applicable be-
fore installation is attempted.
The fireplace must include a working flue
andventingsystemwiththeminimumopen-
ings shown in the Figure 4. Continued
MODEL DESCRIPTION
CVTR18 18" Triple Burner 60,000 50,000 8" dia.
CVTR24 24" Triple Burner 70,000 60,000 8" dia.
Btu Input
Natural Gas Btu Input Propane Gas Minimum Vent Opening
MINIMUM FIREBOX SIZES
LOG FRONT BACK
SIZE WIDTH* WIDTH** DEPTH HEIGHT
18" 28" 16" 14" 18"
24" 29 3/4" 17" 15 1/2" 18"
*Add 2" if safety valve/pilot is used
**At depth indicated
FUEL INLET PRESSURE
SPECIFICATIONS ("W.C.)
Min. Max.
NG 5.5 10.5
LP 11 13
Figure 4 - Technical Information Charts
VENTING SPECIFICATIONS
FOR INSTALLATION
Thefireplacechimneyflueandventmustbe
drafting properly. To check the vent for
properdrafting: Light atightlyrolled news-
paper on one end and place it at the inside
front edge of the fireplace. Observe the
smoke and be sure the vent is properly
drawing it up the chimney. If the smoke
spillsoutintotheroom,extinguishtheflame
and remove any obstruction until proper
venting is achieved.
Thechimney flue mustremain open amini-
mum of 3" at all times during the operation
of this log set.
BURNER ORIFICE
LOG NATURAL PROPANE/LP
SIZE FRONT REAR FRONT REAR
18" .046 4x.064 .036 4x.043
24" .064 4x.064 .036 4x.0465

8
901049
VENTED NATURAL GAS LOGS
INSTALLING DAMPER
CLAMP
Secure the damper stop clamp provided to
the leading edge of the damper as shown in
Figure5.Ifforanyreasonthisclampdoesn't
work on your fireplace, another suitable
clamp or permanent stop must be installed,
orthedamperblademustbecutorremoved.
Damper Clamp
Damper
Clamp
Damper
Manufactured
Fireplace
Masonry Fireplace
Figure 5 - Attaching Damper Clamp
INSTALLATION
Continued
Damper Damper
WARNING: Test all gas pip-
ing and connections for leaks
afterinstalling orservicing.Cor-
rect all leaks at once.
WARNING: Never use an
open flame to check for a leak.
Apply a mixture of liquid soap
and water to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CHECKING GAS
CONNECTIONS
Pressure Testing Gas Supply
Piping System
TestPressuresInExcessOf1/2PSIG
1. Disconnect log set and its individual
manual shutoff valve from gas supply
piping system.
2. Cap off open end of gas pipe where
manual shutoff valve was connected.
3. Pressurizesupply piping system by either
usingcompressedairoropeningmaingas
valve located on or near gas meter.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Reconnect log set and manual shutoff
valveto gas supply. Check reconnected
fittings for leaks.
CONNECTING TO GAS
SUPPLY
WARNING: A qualified ser-
vicepersonmustconnectlogset
to gas supply. Follow all local
codes.
Installation Items Needed
Before installing log set, make sure you
have the items listed below.
• piping (check local codes)
• sealant (resistant to LP gas)
• manual shutoff valve
• test gauge connection
• adjustable (crescent) wrench or pliers
• sediment trap
• tee joint
• pipe wrench
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-tinned copper tubing may
be used in certain areas. Check
yourlocalcodes.Usepipeof1/2"
diameter or greater to allow
proper gas volume to log set. If
pipe is too small, undue loss of
pressure will occur.
Installsedimenttrapinsupplylineasshown
inFigure 6.Locate sedimenttrapwhere itis
within reach for cleaning. Locate sediment
trap where trapped matter is not likely to
freeze. A sediment trap traps moisture and
contaminants. This keeps them from going
into log set controls. If sediment trap is not
installed or is installed wrong, log set may
not run properly.
Installation must include a manual shutoff
valve, union, and plugged 1/8" NPT tap.
Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from
log set (see Figure 6).
Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
fromgoing into pipe. Excess sealant inpipe
could result in a clogged burner injector.
CAUTION:Usepipejointseal-
ant that is resistant to liquid pe-
troleum (LP) gas.
Figure 6 - Gas Connection
*PurchasetheoptionalA.G.A.design-certifiedmanualshutoffvalvefromyourdealer.See
Accessories, page 17.
** Minimum inlet pressure for purpose of input adjustment.
3" Minimum
Sediment Trap
From Gas Meter (5" W.C.**
to 10.5" W.C. Pressure)
A.G.A. Design-Certified
Manual Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible Gas Hose
(if allowed by local codes)
Tee Joint
Pipe Nipple
Cap

9
901049
OWNER’S MANUAL
INSTALLATION
Continued
Figure 8 - Kit Assembly
HEARTH KIT ASSEMBLY
AND INSTALLATION
Kit Assembly
Note: Besure allpipethreadedconnections
are tight, and have thread compound to
prevent leaks.
1. Remove burner inlet fitting from front
burner(installedinburnerpan,seeFig-
ure 8).
2. Make sure ports on front burner are
facing the front (open side) of burner
pan. Refit if needed.
3. Using thread sealant (resistant to the
action of propane/LPgas) on larger end
of fitting, screw the burner inlet fitting
throughtheholeandinto thefront burner
(see Figure 8). Tighten using a 7/8"
wrench. If using propane/LP gas, see
Propane/LP Gas Conversions, page10.
4. Apply thread sealant compound to the
3/8" male threads of the burner inlet
fitting. Thread the manifold block (see
Figure 8) onto the burner inlet fitting.
Use the bottom hole of the block.
TestPressuresEqualToorLessThan
1/2 PSIG
1. Close manual shutoff valve (see Fig-
ure 7).
2. Pressurizesupply piping system by either
usingcompressedairoropeningmaingas
valve located on or near gas meter.
3. Checkalljointsfromgasmeterto manual
shutoff valve (see Figure 7).Apply mix-
tureofliquid soapandwater togasjoints.
Bubbles forming show a leak.
4. Correct all leaks at once.
Gas Meter
Manual Shutoff Valve
5. Apply thread sealant to the 1/8" brass
pipe nipple and thread it onto the mani-
foldblock.Tightenwitha 7/16"wrench.
6. Slip the air restrictor over the 1/8" pipe
nipple.Apply thread sealant to the male
threads and install the rear burner
nozzle onto the fitting. Tighten with a
9/16" wrench.
7. Place the grate assembly over the
burner pan. Install the rear burner
bracket onto the grate with the 2 black
Phillips head #10 screws provided. Do
not tighten at this time (see Figure 9).
8. Install the "U" burner from the left side
with the open end in the front (see Fig-
ure 9). Hold the rear of the burner
higherthan the bracket. Slide theburner
over the air restrictor fitting. Lower the
rear of the burner into the slots on the
burner bracket. Install the burner clip
and tighten the nuts and screws.
9. Install 3/8 flare x 3/8 male pipe elbow
into the inlet of the manifold block.
Install the pipe plug into the top of the
manifold block. Use thread sealant.
Burner
Inlet
Fitting
Front
Burner
Pipe
Nipple
Air Restrictor
Manifold
Block
Rear Burner Nozzle
Grate
Burner Pan
Burner
Bracket
Burner
Clip
Pipe Elbow
Pipe
Plug
Figure 9 - Installing Burner
Continued
Installation and Gas Connection
1. Thread the gas supply fitting to the
fireplace gas supply pipe. Use thread
sealant.
2. Place the burner pan assembly in the
center of the fireplace floor. Make sure
the front of pan faces forward.
3. Install the flex gas line to the gas sup-
ply fitting. Carefully shape tube to at-
tach to adapter fitting (see Figure 10).
4. Replace valve cover.
Figure 10 - Connecting Gas to Appliance
Gas
Supply
Fitting
Flex Gas Line
Burner Pan Assembly
(Facing Front of Fireplace)
Figure 7 - Checking Gas Joints

10
901049
VENTED NATURAL GAS LOGS
OPTIONAL GA9050 SERIES
ON/OFF SAFETY VALVE/
PILOT KIT ASSEMBLY
For additional convenience and safety, or
forpropane/LPconversion,anoptionalON/
OFF safety valve/pilot kit is available. See
Accessories, page 17.
WARNING: You must use a
ON/OFFsafetyvalve/pilotkitfor
propane/LP conversion.
Natural Gas Installation
1. Thread the gas control valve onto the
close pipe nipple (see Figure 11). Use
thread sealant on the male threads of
the fitting. Thread other end of the
nipple into the burner manifold block.
Hold the manifold block with a wrench
to prevent stressing the connections to
the burners. Make sure the control rod
is facing the front (see Figure 11).
2. Attach the pilot gas line to the pilot out-
let of the gas control valve and tighten.
Connect the thermocouple to the rear of
thegas controlvalve(see Figure12).Do
notovertighten.Ifusingpropane/LPgas,
see Changing Pilot Orifice, page 11.
3. Install the inlet fitting into the inlet
opening of the gas control valve (see
Figure 13). Use thread sealant on the
male pipe threads.
4. Thread the gas supply fitting tothefire-
place gas supply pipe (see Figure 10,
page 9).Adjust to most convenient po-
sition.
5. Install the gas flex line to the gas supply
fitting. Carefully shape tube to attach to
adapter fitting.
6. Place the burner pan assembly in the
center of the fireplace floor. Make sure
the front of pan faces forward.
7. Test for leaks following instructions
underTesting Burner forLeaks, page11.
8. Retighten and adjust the location of the
gas control as necessary. The gas con-
trol should be level, with the control
Close Pipe
Nipple
Gas
Control
Valve
Manifold
Block
Figure 11 - Installing Gas Control Valve
Control Rod
INSTALLATION
Continued
rod to the front.
9. Install valve cover to burner pan using
screws provided.
10. Install thermocouple, pilot, and ignitor
onto valve cover as shown in Figure 14.
Use the provided screws.
11. Push the control rod extension onto the
“D” shaped control rod through the cen-
ter hole in the cover.
12. Install the position decal and control
knob making sure to align the marks
with the correct stop positions of the
gascontrol. Pilot position will allow the
knob to push in about 1/2". Align the
decals in the pilot position.
Figure 12 - Gas Control Valve with Ther-
mocouple and Pilot
Figure13-InstallingInletFittingandGas
Connector Tube
Piezo Ignitor
Control
Rod
Extension
Screw
Valve
Cover
Control Knob
Figure14-InstallingCover,ControlKnob,
and Piezo Ignitor
Thermocouple and Line
Pilot and Line
Gas Control Valve
Gas Control
Valve Gas Inlet
Fitting
Flex Gas
Line
Thermocouple
Ignitor
Pilot
Inlet
Opening
Burner
Pan
Propane/LP Gas Conversion
To convert to propane/LP gas, the burner
inlet fitting must be removed and pilot ori-
fice must be replaced.
Burner Inlet Fitting
Note: Besureallpipethreadedconnections
are tight, and have thread compound to
prevent leaks. Be sure to use the correct
orifice for your unit. See chart on page 7.
1. Remove the burner inlet fitting from
the front burner manifold (installed in
burner pan). See Figure 15, page 11.
2. Make sure ports on front burner mani-
fold are facing the front (open side) of
burner pan. Refit if needed.
3. Replace front burner injector with the
provided injector. See chart on page 7
and Figure 16, page 11. Using thread
sealant (resistant to the action of pro-
pane/LP gas) on larger end of fitting,
screw the burner inlet fitting through
the hole and into the burner manifold.
Tighten using a 7/8" wrench.