Comfortflame Sonoma18LZN Service manual

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
This appliance 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.
WARNING: This appliance is for installation only in
a solid-fuel burning masonry or UL127 factory-built
fireplace, constructed of noncombustible material
and connected to a working flue. (See page 6 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. Refer to the National Fual
Gas Codes, ANSI Z233.1/NFPA 54, Section 5.3 for
Combustion and Ventilation.
These logs are approved by the manufacturer for installation in listed indoor and outdoor solid fuel burning
fireplaces.
WARNING: FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or property damage.
—Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
—WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Leave the building immediately.
• 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 re department.
—Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Installation and Operation Instructions
Comfort Flame™ Vented Natural Gas Logs
Decorative Appliance
Models
Sonoma18LZN
Sonoma24LZN
Report No. F09-168
P/N 900579-00 Rev. N/C 12/2015
PFS
®
US
WELCOME HOME TO WARMTH
TM
P900579-00

Comfortflame.US.com 900579-00_NC2
SAFETY
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause injury
or property damage. Refer to this manual for correct
installation andoperational 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-fuel burning masonry orUL127factory-built
fireplace, constructed of noncombustible material and
connected to a working flue. (See page 5 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. Refer to the National Fuel Gas
Codes, ANSI Z233.1/NFPA 54, Air for Combustion and
Ventilation.
This appliance 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.
* Aftermarket: Completion of sale, not for purpose of
resale, from the manufacturer
State of Massachusetts: The installation must be
made by a licensed plumber or gas fitter in the Com-
monwealth of Massachusetts.
WARNING: This product contains and/or generates
chemicals known to the State of California to cause
cancer or birth defects or other reproductive harm.
WARNING: Keep flue open when operating unit.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate or
service this log set. Improper use of this log set can
cause serious injury or death from burns, fire, explo-
sion,electrical shockand carbonmonoxide poisoning.
Safety............................................................................................. 2
Local Codes ................................................................................... 4
Unpacking...................................................................................... 4
Product Identification..................................................................... 4
Optional Product Features.............................................................. 4
Requirements for the Commonwealth of Massachusetts............... 4
Installation ..................................................................................... 5
Operation .................................................................................... 11
Cleaning and Maintenance .......................................................... 12
Service Hints................................................................................ 12
Technical Service ......................................................................... 12
Replacement Parts....................................................................... 12
Troubleshooting ........................................................................... 13
Parts ............................................................................................ 16
Accessories.................................................................................. 19
Warranty ...................................................................................... 23
TABLE OF CONTENTS
Thank you for your purchase. We appreciate your
business!
Please carefully read and follow all instructions in this manual. Pay
special attention to all warnings and safety information.
Following these safety, care, and operation instructions will help
ensure many years of dependable and enjoyable service from your
fireplace.
Please read and understand these instructions before installing
or operating.

Comfortflame.US.com900579-00_NC 3
SAFETY Continued
DANGER: Carbon monoxide poisoning may lead
to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poi-
soning resemble the flu, with headaches, dizziness or nausea. If you
have these signs, the log set may not be working properly. Get fresh
air at once! Have log set serviced. Some people are more affected
by carbon monoxide than others. These include pregnant women,
people with heart or lung disease or anemia, those under the influence
of alcohol and those at high altitudes.
Natural & LP Gas: Natural & LP gas are odorless. An odor-making
agent is added to the gas. The odor helps you detect a gas leak.
However, the odor added to the gas can fade. Gas may 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: Any change to this log set or its controls
can be dangerous.
WARNING: Do not use a blower insert, heat ex-
changer insert or other accessory not approved for
use with this appliance.
WARNING: This appliance is equipped for either
natural gas or propane/LP gas but not both. Gas type
is indicated on the rating plate. Field conversion is
not permitted.
WARNING: Do not allow fans to blow directly into
the fireplace. Avoid any drafts that alter burner flame
patterns.
WARNING: Installed decorative glass door enclo-
sures must be fully opened when operating this gas
appliance.
Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies.
Do not place clothing or other flammable material
on or near the appliance. Never place any objects on
the appliance.
Appliance assembly becomes very hot when running
appliance. Keep children and adults away from hot
surface to avoid burns or clothing ignition. Appliance
will remain hot fora time after shutdown.Allow surface
to cool before touching.
Carefully supervise young children when they are in
the room with appliance.
You must operate thisappliance with a fireplacescreen
in place. Make sure fireplace screen is closed before
running this log set.
The screen shall have openings for introduction of
combustion air.
Keep the appliance area clear and free from combus-
tible materials, gasoline and other flammable vapors
and liquids.
Children and adults should be alerted to the hazard of
high temperature and should stay away to avoid burns
or clothing ignition.
1. This appliance, as supplied, is only for use with the type of gas
indicated on the rating plate. This appliance is convertible for
use with propane/LP, using the GA9050A-1 (F0235) or GA9150A
(F0237) 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
•leavethebuildingimmediately
•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redepartment
3. Never install the log set
•inarecreationalvehicle
•wherecurtains,furniture,clothingorotherammableobjects
are less than 42" from the front, top or sides of the log set
•inhightrafcareas
•inwindyordraftyareas
4. Before installing in a solid fuel burning fireplace, the chimney flue
and firebox must be cleaned of soot, creosote, ashes and loose
paint by a qualified chimney cleaner. Creosote will ignite if highly
heated. Inspect chimney flue and firebox for damage. If damaged,
repair flue before operating appliance.
5. You must operate this log set with a fireplace screen in place.
Make sure fireplace screen is closed before running log set.
6. This log set is designed to be smokeless. If logs ever appear to
smoke, turn off appliance and call a qualified service person.
Note: During initial operation, slight smoking could occur due to
log curing and the burning of manufacturing residues. You may
wish to add more ventilation by opening a window.
7. To reduce the creation of soot, follow the instructions in Cleaning
and Maintenance, page 12.
8. Do not allow fans to blow directly into the fireplace. Avoid any
drafts that alter burner flame patterns. Ceiling fans can create
drafts that alter burner flame patterns. Altered burner patterns
can increase sooting.

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Figure 1 - Product Identification
Grate
Burner
Pan
Burner Manifold Right Side
Burner
Left Side
Burner Burner Inlet
Fitting
9. Do not use a blower insert, heat exchanger insert or other acces-
sory not approved for use with this log set.
10.This installation and provisions for combustion and ventilation air
must conform to the National Fuel Gas Code, ANSI Z233.1/NFPA
54, Air for Combustion and Ventilation.
11.Do not run log set
•whereammable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. Keep children and adults
away from hot surface to avoid burns or clothing ignition. 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.Do not use appliance if any part has been exposed to or under
water. Immediately call a qualified service technician to inspect
the room appliance and to replace any part of the control system
(if using GA9050A-1 - F0235 or GA9150A - F0237) and any gas
control which has been under water.
16.To help prevent breakage, new logs must be broken-in (see Curing
Logs, page 11).
17. Turn log set off and let cool before servicing, installing or repairing.
Only a qualified service person should install, service or repair log set.
15. The installation of these appliances in manufactured homes in
the U.S. must conform with the Manufactured Home Construc-
tion and Safety Standard, Title 24 CFR, Part 3280, in the United
States, or when such a standard is not applicable, Manufactured
Home Installations Standard, ANSI/NCSBCS A225.1/NFPA 501A.
LOCAL CODES
Install and use fireplace with care. Follow all local codes. In the ab-
sence of local codes, use the latest edition of The National Fuel Gas
Code ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
25 West 43rd Street, 4th floor
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02169-7471
UNPACKING
CAUTION: Do not remove the data plates from the
burner pan. The data plates contain important war-
ranty and safety information.
1. Remove logs, hearth kit, pan materials and hardware from carton.
2. Remove all protective packaging applied to logs and base for
shipment.
3. Check appliance for any shipping damage. If appliance is dam-
aged contact IHP at Comfortflame.US.com for replacement parts
before returning to dealer.
PRODUCT IDENTIFICATION
Hearth Kit Model: _________________
Serial Number:___________________
Log Set Model: __________________
SAFETY Continued
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 Accessories, page 19.
REMOTE CONTROL READY (MILLIVOLT) SAFETY VALVE/PILOT KIT
An optional millivolt valve/safety pilot kit with a piezo ignitor is avail-
able for this appliance. This system requires no matches, batteries or
other sources to light. This system may be connected to a wall switch
or hand-held wireless remote control. See Accessories, page 19.
REMOTE CONTROL ACCESSORIES
There is an optional hand-held ON/OFF remote control that can be
purchased separately for this log set. You must use the millivolt
valve/safety pilot kit to use remote accessories with this appliance.
See Accessories, page 19.
A wall switch is also available for this appliance. You must use the
millivolt valve/safety pilot kit to use the wall switch with this appliance.
See Accessories, page 19.
COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS
These appliances are approved for installation in the US state of
Massachusetts if the following additional requirements are met:
• Install this appliance in accordance with Massachusetts Rules
and Regulations 248 C.M.R. Sections 4.00 through 8.00.
• 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.

Comfortflame.US.com900579-00_NC 5
INSTALLATION
CAUTION: Do not remove the data plates attached
to the burner pan. The data plates contain important
warranty information.
WARNING: Before installing in a solid fuel burn-
ing fireplace, the chimney flue and firebox must be
cleaned of soot, creosote, ashes and loose paint by
a qualified chimney cleaner. Creosote will ignite if
highly heated. A dirty chimney flue may create and
distribute soot within the house. Inspect chimney flue
and firebox for damage. If damaged, repair flue before
operating appliance.
NOTICE: Installation, service and repair of this ap-
pliance must be performed by a qualified installer,
service agency, company or gas supplier experienced
with this type of gas appliance. Only factory authorized
components listed in these instructions may be used
in accordance with the manufacturer’s instructions
and all codes and requirements of the authority hav-
ing jurisdiction. Any modifications to this kit or use
of unauthorized components or accessory items will
void the manufacturer’s warranty and may result in a
hazardous condition.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed only in a solid-fuel
burning fireplace with a working flue and constructed of noncom-
bustible material.
The charts in Figure 2 indicate technical information regarding the
installation of your gas log set. Please make sure that all of the
specifications shown are applicable before installation is attempted.
The fireplace must include a working flue and venting system with
the minimum openings shown in the Figure 2.
MODEL Btu/Hr Input
Natural Gas
Btu/Hr Input
Propane/LP Gas
Minimum Vent
Opening
Sonoma18LZN
18" Multi-Side 55,000 45,000 8" dia.
Sonoma24LZN
24" Multi-Side 65,000 55,000 8" dia.
MINIMUM FIREBOX SIZES
LOG
SIZE
FRONT
WIDTH*
BACK
WIDTH**
DEPTH HEIGHT
18" 28" 28" 16" 18"
24" 29 3/4" 29 3/4" 16" 18"
**At depth indicated
FUEL INLET PRESSURE
SPECIFICATIONS (W.C.)
Min. Max.
NG 5.5" 10.5"
LP 11" 13"
Figure 2 - Technical Information Charts
BURNER ORIFICE
Log
Size
Natural Propane/LP
In. Num. In. Num.
18" 0.111 34 0.073 49
24" 0.129 30 0.086 44
CHECK GAS TYPE
Use only natural gas. If your gas supply is not natural gas, you must
install ON/OFF Safety Valve/Pilot Kit (see Accessories, page 19). Call
dealer where you bought log set.
If the fireplace does not have a gas supply shutoff valve, one must
be installed.
VENTING SPECIFICATIONS FOR INSTALLATION
The fireplace chimney flue and vent must be drafting properly. To
check the vent for proper drafting: Light a tightly rolled newspaper 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 spills out into the room, extinguish the flame and remove
any obstruction until proper venting is achieved.
The chimney flue must remain open a minimum of 3" at all times
during the operation of this log set.

Comfortflame.US.com 900579-00_NC6
INSTALLATION Continued
Figure 3 - Attaching Damper Clamp
Figure 4 - Gas Connection
* Purchase the optional equipment shutoff valve from your dealer.
** Minimum inlet pressure for purpose of input adjustment.
3" Minimum
Sediment Trap
From Gas
Meter
(5" W.C.** to
10.5" W.C.
Pressure)
Equipment Shutoff Valve
With 1/8" NPT Tap*
Approved
Gas Hose
Cap Pipe Tee
Nipple Joint
Manufactured FireplaceMasonry Fireplace
Damper
Damper
Clamp
Damper
Damper
Clamp
Damper
INSTALLING DAMPER CLAMP
Secure the damper stop clamp provided to the leading edge of the
damper as shown in Figure 3. If for any reason this clamp doesn't
work on your fireplace, another suitable clamp or permanent stop
must be installed or the damper blade must be cut or removed.
CONNECTING TO GAS SUPPLY
WARNING: A qualified service person must connect
log set 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propane/LPgas)
• equipment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.
Internally-tinned copper tubing may be used in certain
areas. Check your local codes. Use pipe of 1/2" diam-
eter or greater to allow proper gas volume to log set.
If pipe is too small, undue loss of volume will occur.
Installation must include an equipment 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 4).
IMPORTANT: Install equipment shutoff valve in an accessible location.
The equipment shutoff valve is for turning on or shutting off the gas
to the appliance.
Apply pipe joint sealant lightly to male NPT threads. This will prevent
excess sealant from going into pipe. Excess sealant in pipe could
result in a clogged burner injector.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
We recommend that you install a sediment trap (not supplied with log
set) in supply line as shown in Figure 4. Locate sediment trap where
it is within reach for cleaning. Install in piping system between fuel
supply and appliance. Locate sediment trap where trapped matter is
not likely to freeze. A sediment trap captures moisture and contami-
nants. 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.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections,
internal and external to unit, for leaks after installing
or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for
a leak. Apply a noncorrosive leak detection fluid to
all joints. Bubbles forming show a leak. Correct all
leaks at once.

Comfortflame.US.com900579-00_NC 7
INSTALLATION Continued
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect appliance with its appliance main gas valve (control
valve) and equipment shutoff valve from gas supply piping system.
Pressures in excess of 1/2 psig 3.5 kPa) will damage appliance
regulator.
2. Cap off open end of gas pipe where equipment shutoff valve was
connected.
3. Pressurize supply piping system by either using compressed air
or opening main gas valve located on or near gas meter.
4. Check all joints of gas supply piping system. Apply noncorrosive
leak detection fluid to gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect log set and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 5).
2. Pressurize supply piping system by either using compressed air
or opening main gas valve located on or near gas meter.
3. Check all joints from gas meter to equipment shutoff valve (see
Figure 5). Apply mixture of liquid soap and water to gas joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
HEARTH KIT ASSEMBLY AND INSTALLATION
Kit Assembly
1. Unscrew burner inlet fitting from burner manifold.
2. Place burner manifold in pan with threaded opening facing open
knockout plug (see Figure 6, page 8). Make sure the burner ports
face downward.
3. Using thread sealant (resistant to the action of propane/LP gas)
on larger end of fitting, screw the burner inlet fitting through
hole and into burner manifold. Tighten using a wrench. If using
propane/LP gas, see Propane/LP Gas Conversion, page 10.
4. If using optional GA9050A-1 (F0235) kit, go to Optional
GA9050A-1 (F0235) ON/OFF Safety Valve/Pilot Kit section for
installation instructions. If using optional GA9150A (F0237) kit,
follow instructions included with kit for installation and operation.
5. Using thread sealant on male threads, install burner connection
fittings into 1/8" NPT holes on each side of burner manifold.
Figure 5 - Checking Gas Joints
Gas Meter
Equipment
Shutoff
Valve
6. Press right and left side burners onto burner connection fittings.
Burner porting should face downward (see Figure 6).
Figure 6 - Installing Burner
Burner Inlet Fitting
Burner Manifold
Burner Connection
Fittings
Side
Burners
Figure 7 - Connecting Gas to Appliance
Adapter Fitting
Gas Connector
Tube
Burner Pan
Assembly
Installation and Gas Connection
1. Place burner pan assembly in center of fireplace floor. Make sure
inlet end of pan faces gas supply.
2. Thread gas supply fitting to fireplace gas supply pipe. Use thread
sealant.
3. Install adapter fitting onto burner inlet fitting using thread sealant
on male threads of burner inlet fitting (see Figure 7). Adjust to
most convenient position.
4. Install gas connector tube to gas supply fitting. Carefully shape
tube to attach to adapter fitting. Be careful not to cause kinks in
tube.
5. Using 1/4" x #8 provided, install cover over inlet fitting.

Comfortflame.US.com 900579-00_NC8
Figure 8 - Installing Gas Control Valve
Burner Inlet
Fitting
Gas
Control
Valve
Burner Pan
Assembly
Control Rod
INSTALLATION Continued
OPTIONAL GA9050A-1 (F0235) ON/OFF SAFETY VALVE/PILOT KIT
ASSEMBLY
For additional convenience and safety or for propane/LP conversion,
an optional ON/OFF Safety Valve/Pilot Kit is available. See Acces-
sories, page 19.
WARNING: You must use a ON/OFF Safety Valve/
Pilot Kit for propane/LP conversion.
Note: The control cover provided with GA9050A-1 (F0235) should
be discarded and replaced with control cover provided with log set.
Natural Gas Installation
1. Thread gas control valve onto burner inlet fitting (see Figure 8).
Use thread sealant on male threads of burner inlet fitting. Hold
burner inlet fitting with a wrench to prevent overtightening con-
nection to burner. Make sure control rod is facing the front (see
Figure 8).
2. Attach pilot gas line to pilot outlet of gas control valve and tighten.
Connect thermocouple to rear of gas control valve. See Figure 9.
Do not overtighten. If using propane/LP gas, see Changing Pilot
Orifice, page 9.
3. Install inlet fitting into inlet opening of gas control valve (see
Figure 10). Use thread sealant on male pipe threads.
4. Place burner pan assembly in center of fireplace floor. Make sure
front of pan faces the room from which you wish to control ap-
pliance.
5. Thread gas supply fitting to fireplace gas supply pipe. Adjust to
most convenient position.
6. Install gas connector tube to gas supply fitting. Carefully shape
tube to attach to adapter fitting. Be careful not to cause kinks in
tube.
7. Test for leaks following instructions under Testing Burner for
Leaks, page 9.
8. Retighten and adjust location of gas control as necessary. Gas
control should be level, with control rod to the front.
9. Attach cover, provided with log set, to burner pan using screws
provided.
10.Install thermocouple, pilot and ignitor onto valve cover as shown
in Figure 11. Use the provided screws.
11.Push control rod extension onto “D” shaped control rod through
center hole in cover.
Figure 9 - Gas Control Valve with Thermocouple and Pilot
Figure 10 - Installing Inlet Fitting and Gas Connector Tube
Thermocouple
and Line
Pilot and
Line
Gas Control Valve
Gas Control
Valve
Gas
Inlet
Fitting
Gas Connector
Tube
Inlet
Opening
Figure 11 - Installing Cover, Control Knob and Piezo Ignitor
Piezo
Ignitor
Control Rod Extension
Screw
Valve
Cover
Control
Knob
Thermocouple
Pilot
Ignitor
12. Install control position decal and control knob making sure to align
marks with correct stop positions of gas control. Pilot position will
allow knob to push in about 1/2". Align decals in pilot position.

Comfortflame.US.com900579-00_NC 9
INSTALLATION Continued
Propane/LP Gas Conversion
To convert to propane/LP gas, burner inlet fitting and pilot orifice must
be replaced. The propane/LP burner inlet fitting is supplied with orifice
installed for a 24" log set. If you have an 18" set, you must change this
orifice also. See Figure 1, page 4, for product identification.
Burner Inlet Fitting
1. Remove burner inlet fitting from burner pan assembly (see
Figure 12). DO NOT remove orifice from fitting. Propane/LP
burner inlet fitting is included in hardware kit (see Figure 13).
2. Be sure to use correct orifice for your appliance. The hardware kit
included with this appliance contains two orifices with a cone-like
shape. If you have an 18" set, orifice for burner inlet fitting is red.
If you have a 24" log set, orifice is already installed inside the fit-
ting. The black orifice will not be used in any multi-side unit and
may be discarded.
3. For an 18" set, use a 10 mm socket or nut driver to remove orifice
from propane/LP burner inlet fitting. Choose the correct orifice for
your log set size and install in place of orifice you just removed.
4. Using thread sealant (resistant to action of propane/LP gas) on
larger end of fitting, screw burner inlet fitting through hole and
into burner manifold. Tighten using a wrench.
5 . Follow steps 1 through 12 under Natural Gas Installation, page 8.
Figure 13 - Burner Inlet Fittings with Injectors
Figure 12 - Remove Burner Inlet Fitting
Figure 14 - Installing Propane/LP Pilot Orifice
Burner Inlet Fitting
for Natural Gas
NATURAL
GAS
FITTING
PROPANE/
LP GAS
FITTING
Injector for
Natural Gas
Injector for
Propane/LP Gas
Pilot Injector
Changing Pilot Orifice
The pilot is provided with a natural gas orifice installed. For propane/
LP gas you must remove natural gas orifice and replace it with a
propane/LP orifice. The hardware kit contains a propane/LP orifice
with a red stripe for converting pilot.
1. Gently loosen and remove pilot line connection from bracket (see
Figure 14).
2. Replace injector (see Figure 14) with propane/LP pilot injector
with red stripe.
3. Replace and tighten pilot line to bracket.
4. Continue with step 3 under Natural Gas Installation, page 8.
TESTING BURNER FOR LEAKS
1. Generously apply noncorrosive leak detection fluid to all connec-
tions.
WARNING: Never check for gas leaks with open
flame.
2. Light burner with shutoff valve no more than half open and holding
a match slightly in front of pan (see Lighting Instructions, page
11).
3. Inspect all connections for bubbles, raw gas odor or flame from
any area other than burner (leaks). If leaks are detected, shut off
gas valve immediately. Tighten or reassemble loose connection(s)
using pipe joint compound until burner system is leak free.
4. When burner is tested and leak free, observe individual tongues
of flame on burner.
Note: Burner design includes more ports on outside of the bar.
Make sure that all ports are clear and producing flame evenly
across burner. If any ports appear blocked, clear them by removing
burner manifold and reaming ports with a modified paper clip or
other suitable tool.
5. When finished testing, turn gas shutoff valve OFF to extinguish
all flames.

Comfortflame.US.com 900579-00_NC10
ADDING PAN MATERIAL
1. Open bags of ash bed material (vermiculite) and spread it evenly
across burner pan to the top. You may overflow front and sides
of pan to cover the entire pan and connecting hardware. Do not
cover GA9050A-1 (F0235) or GA9150A (F0237) valve.
2. Open glowing embers and evenly cover ash bed material (ver-
miculite) in burner pan.
INSTALLING GRATE AND LOGS
1. Place grate over burner pan. Grate should “lock” into place over
corners of pan (see Figure 15).
2. Place one of the bottom logs on grate and slide forward against
front grate bars. Repeat for other side (see Figure 16).
3. Place smaller top logs onto bottom logs (see Figure 17). Leave
as much open space between logs as possible to minimize flame
impingement and sooting.
Note: Logs may chip if they are handled roughly or if hit together
while being placed.
INSTALLATION Continued
Figure 15 - Installing Grate (Pan Material Not Shown)
Figure 16 - Placement of Bottom Logs
Figure 17 - Placement of Top Logs
Grate
Burner Pan

Comfortflame.US.com900579-00_NC 11
Ignitor
Control Knob Pilot
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
ON
ON
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
ON OFF
On Off
OFF
OFF
Figure 18 - Ignitor and Control Knob
OPERATION
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: Keep flue open when operating unit.
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing property
damage, personal injury or loss of life.
BEFORE LIGHTING smell all 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 any appliance.
• Do not touch any electric switch; do not use any phone in your
building.
• Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re department.
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information, above.
2. Turn the gas shutoff valve to OFF.
3. Wait five (5) minutes to clear out any gas. If you then smell gas
STOP! Follow the safety information above. If you don‘t smell gas,
go on to the next step.
4. Lay a lit match on top of pan material about 2" from end of supply
side of pan.
5. Slowly turn gas shutoff valve ON until burner ignites. If burner
does not ignite within 10 seconds with match burning, turn shutoff
valve OFF and repeat steps 1 through 4 again.
GAS SHUTOFF
VALVE OPERATION
Flame Adjustment
Adjust the flame ON/OFF by turning the gas shutoff valve counter-
clockwise to open or clockwise to close, as necessary.
Shutting Off Appliance
Turn gas shutoff valve clockwise to the OFF position.
CURING
LOGS
During the 2-3 hour appliance break-in period, you may detect an
odor from the appliance as the various paints and compounds used
in the manufacturing of this log set cure. This is a normal and tem-
porary situation that is not cause for alarm. However, you may want
to provide extra ventilation to the room during this time.
To ensure proper curing of the logs:
• Ignitea2"ameandmaintainitfor1hour.
• Burnthelogsinconsecutive1hourperiodsraisingtheamean
additional 2" to full flame height for a total of three hours.
OPERATING INSTRUCTIONS
FOR GA9050A-1 (F0235)
Note: Operation instructions for GA9150A (F0237) Remote Ready
ON/OFF Safety Valve/Pilot Kit will be included with the kit.
1. STOP! Read the safety information, column one.
2. Make sure equipment shutoff valve is fully open.
3. Press in and turn control knob clockwise to the OFF posi-
tion.
4. Wait five (5) minutes to clear out any gas. Then smell for gas
around log set and near floor. If you smell gas, STOP! See safety
information,page3.Ifyoudon’tsmellgas,gotothenextstep.
5. Turn control knob counterclockwise to the PILOT position
and press in. Keep control knob pressed in for five (5) seconds.
Note: You may be running this log set for the first time after
hooking up to gas supply. If so, the control knob may need to be
pressed in for 30 seconds. This will allow air to bleed from the
gas system.
•Ifcontrolknobdoesnotpopupwhenreleased,contactaquali-
fied service person or gas supplier for repairs.
6. With control knob pressed in, push down and release ignitor
button. This will light pilot. The pilot is attached to the rear of the
front burner. If needed, keep pressing ignitor button until pilot
lights.
Note: If pilot does not stay lit, contact a qualified service person
or gas supplier for repairs. Until repairs are made, light pilot with
match.
7. Keep control knob pressed in for 30 seconds after lighting pilot.
After 30 seconds, release control knob.
Note: If pilot goes out, repeat steps 3 through 7.
8. Turn control knob counterclockwise to the ON position.
Burner should light. If burner does not light, call a qualified service
person.
9. To shut off burner only leaving pilot lit, turn control knob clockwise
to the PILOT position.

Comfortflame.US.com 900579-00_NC12
OPERATION Continued
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Appliance
1. Turn control knob clockwise to the PILOT position.
2. Press in and turn control clockwise to the OFF position.
3. Close equipment shutoff valve.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise to the PILOT position.
Figure 19 - Thermocouple and Pilot
Pilot
Thermocouple
CLEANING AND MAINTENANCE
• Keeptheareaaroundthelogsetcleanandclearofdebris.
• Occasionally,youmayuseasoftbristlebrushtocleanlogs.
• Once every year a qualied agency or certied chimney sweep
should examine and clean the venting system of the fireplace.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilotwillnotstaylit
• burnerwillhavedelayedignition
• appliancewillnotproducespeciedheat
• forpropane/LPunit,propane/LPgassupplymaybelow
You may feel your gas pressure is too low. If so, contact your local
gas supplier.
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. Please contact your IHP dealer for any questions
or concerns. When contacting your dealer please have your model
and serial numbers of your fireplace ready. You can also visit our web
site at Comfortflame.US.com.
REPLACEMENT PARTS
See Pages 16 to 18 for a complete replacement parts list. Use only
parts supplied from the manufacturer.
Normally, all parts should be ordered through your IHP 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 fireplace, please contact your dealer.
IHP
1508 Elm Hill Pike, Suite 108
Nashville, TN 37210
Visit us at Comfortflame.US.com

Comfortflame.US.com900579-00_NC 13
TROUBLESHOOTING
WARNING: Turn off log set and let cool before servicing. Only a qualified service person should service
and repair log set.
Note: All troubleshooting items are listed in order of operation.
POSSIBLE CAUSE
1. Poor fuel quality
2.Fireplace venting system not drafting
properly
3. Excessive flame impingement or blockage
4. Improper fuel/air mixture
5. Excessive gas supply/pressure
1. Passage of air/gas across irregular sur-
faces
1. Incorrect gas supply or pressure
2. Blocked burner orifice or burner manifold
ports
3. Improper burner orifice size
1. Ignitor electrode not connected to ignitor
cable
2. Ignitor cable pinched or wet
3. Bad ground on piezo ignitor
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned wrong
OBSERVED PROBLEM
Log set is smoking/sooting excessively
(Note: It isnatural andunavoidable for vented
gas log sets to produce moderate levels of
carbon (soot) where flames contactthe logs.
This is especially true with propane/LP gas.)
Burner is excessively noisy
(Note: Themovement andcombustionof gas
will create low, unavoidable levels of noise.)
Burner flame is too low or too high
When ignitor button is pressed, there is no
spark at pilot (GA9050A-1 - (F0235) Only)
REMEDY
1. Contact local natural or propane/LP gas
company
2. Adjust damper wide open and/or have
fireplace and venting professionally
cleaned and checked
3. Separate the logs to allow more flame
passage
4. Remove any foreign items from the flame
pattern and/or check for proper orifice
sizing
5. Preheat flue in very cold weather
1. Relieve any tight bends or kinks in gas
supply line
1. Check for proper gas supply pressure
2. Free burner orifice and manifold ports of
any burrs, paint or other blockage
3.Verify proper burner orifice sizing (see
Figure 2, page 5)
1. Reconnect ignitor cable
2. Free ignitor cable if pinched by any metal
or tubing. Keep ignitor cable dry
3. Scrape away paint on bracket for better
contact with ground on piezo ignitor
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace electrode
7. Reposition electrode

Comfortflame.US.com 900579-00_NC14
TROUBLESHOOTING Continued
OBSERVED PROBLEM
When ignitor button is pressed, there is
spark at pilot but no ignition (GA9050A-1
- F0235) Only)
Pilot lights but flame goes out when control
knob is released (GA9050A-1 - F0235) Only)
Burner does not light after pilot is lit
(GA9050A-1 - F0235) Only)
Delayed ignition burner (GA9050A-1 -
F0235) Only)
REMEDY
1. Turn on gas supply or open equipment
shutoff valve
2. Turn control knob to PILOT position
3.Press in control knob while in PILOT
position
4. Continue holding down control knob. Re-
peat igniting operation until air is removed
5. Adjust pilot flame for approximately 2"
blue flame
6. Clean pilot (see Cleaning and Mainte-
nance, page 12) or replace pilot assembly
7. Replace gas control
1. Press in control knob fully
2.After pilot lights, keep control knob
pressed in 30 seconds
3. Fully open equipment shutoff valve
4.
A) Contact local natural gas company
B) Clean pilot (see Cleaning and Mainte-
nance, page 12) or replace pilot assembly
5. Hand tighten until snug, then tighten 1/4
turn more
6. Replace thermocouple
7. Replace control valve
1. Clean burner orifice
2. Contact local natural or propane/LP gas
company
3. Reconnect leads
1. Adjust pilot flame for approximately 2"
blue flame
2. Replace pilot orifice set
POSSIBLE CAUSE
1.Gas supply turned off or equipment
shutoff valve closed
2. Control knob not in PILOT position
3.Control knob not pressed in while in
PILOT position
4. Air in gas lines when installed
5. Pilot adjustment screw closed
6. Pilot is clogged
7. Low gas pressure
1. Control knob not fully pressed in
2. Control knob not pressed in long enough
3. Equipment shutoff valve not fully open
4. Pilot flame not touching thermocouple,
which allows thermocouple to cool, caus-
ing pilot flame to go out. This problem
could be caused by one or both of the
following:
A) Low gas pressure
B) Dirty or partially clogged pilot
5. Thermocouple connection loose at con-
trol valve
6. Thermocouple damaged
7. Control valve damaged
1. Burner orifice clogged
2. Inlet gas pressure is too low
3.Thermocouple leads disconnected or
improperly connected
1. Pilot flame needs adjusting
2. Wrong pilot orifice

Comfortflame.US.com900579-00_NC 15
TROUBLESHOOTING Continued
OBSERVED PROBLEM
Log Set produces a clicking/ticking noise
just after burner is lit or shut off
Log Set produces unwanted odors
Gas odor even when control knob is in OFF
position
Gas odor during combustion
REMEDY
1. This is normal with most log sets. If noise
is excessive, contact qualified service
person
1. Open flue to maximum. Stop using odor
causing products while log set is running
2. Locate and correct all leaks (see Checking
Gas Connections, page 6)
1. Locate and correct all leaks (see Checking
Gas Connections, page 6)
2. Replace control valve
1. Locate and correct all leaks (see Checking
Gas Connections, page 6)
POSSIBLE CAUSE
1. Metal expanding while heating or contract-
ing while cooling
1. Log Set burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet, etc. (See IMPORTANT statement
above)
2. Gas leak. See Warning statement at top
of page
1. Gas leak. See Warning statement at top
of page
2. Control valve defective
1. Gas leak. See Warning statement at top
of page
WARNING: 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.
• If you cannot reach your gas supplier, call the re department.
IMPORTANT: Operating log set where impurities in air exist may create odors. Cleaning supplies, paint, paint remover,
cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combus-
tion air and create odors. These odors will disappear over time.

Comfortflame.US.com 900579-00_NC16
PARTS
3
1
8
6
12
10 11
10
4
2
7
9
5
CATALOG NO. MODEL
F2615 Sonoma18LZN
F2616 Sonoma24LZN

Comfortflame.US.com900579-00_NC 17
PARTS
BURNER MODELS
This list contains replaceable parts used in your log set. When ordering parts, follow the instructions listed under Replacement Parts on
page 12 of this manual.
KEY
NO. CATALOG NO. DESCRIPTION
Sonoma18LZN
F2615
Sonoma24LZN
F2616 QTY.
1 J6824 Brass 3/8 FLR x 1/2 FPT Elbow • • 1
2 J6851 Brass 3/8 FLR x 3/8 FPT Elbow • • 1
3 J7221 Brass Air Mixer - Natural Gas • • 1
4 J7209 Natural Gas Injector •1
J7204 Natural Gas Injector •1
5 J7323 Burner Manifold •1
J7322 Burner Manifold •1
6 J7329 Burner Pan •1
J7328 Burner Pan •1
7 J7287 Damper Clamp - Std. Assembly • • 1
8 J7286 Gas Line - 12" Aluminum • • 1
9 J7331 Log Grate •1
J7321 Log Grate •1
10 J7199 Burner Connection Fitting • • 2
11 J7326 Right Side Burner •1
J7324 Right Side Burner •1
12 J7327 Left Side Burner •1
J7325 Left Side Burner •1
PARTS AVAILABLE — NOT SHOWN
J7275 0.4# Bag Embers • • 1
J7274 1.00# Bag Ash Bed Material (Vermiculite) • • 1
WARNING: Contact an IHP dealer to obtain any of these parts. Never use substitute materials not approved
by IHP. Use of non-approved parts can result in poor performance and safety hazards.

Comfortflame.US.com 900579-00_NC18
PARTS
SPLIT OAK LOG SET MODELS
This list contains replaceable parts used in your log set. When ordering parts, follow the instructions listed under Replacement Parts on
page 12 of this manual.
3
1
6
7
5
4
2
Split Oak Logs
KEY
NO. CATALOG NO. DESCRIPTION
Sonoma18LZN
F2615
Sonoma24LZN
F2616 QTY.
1 J7309 Bottom Log FC-8 •2
J7310 Bottom Log FC-10 •2
2 J7312 Bottom Log FC-9 •2
J7313 Bottom Log FC-11 •2
3 J7263 Top Log FS-12Y • • 1
4 J7262 Top Log FS-16 • • 1
5 J7260 Top Log FS-17 • • 1
6 J7264 Top Log FS-12L • • 1
7 J7261 Top Log FS-15 •1
WARNING: Contact an IHP dealer to obtain any of these parts. Never use substitute materials not approved
by IHP. Use of non-approved parts can result in poor performance and safety hazards.

Comfortflame.US.com900579-00_NC 19
CAT NO. MODEL DESCRIPTION
WALL-MOUNT ON/OFF SWITCH
For all models. Allows the gas log set to be turned on and off with a wall switch.
GA9150A (F0237) (Not Shown)
F0245 GWMS2 Switch Wall Mount Kit
MANUAL CONTROL ON/OFF SAFETY VALVE/PILOT KIT
For all models. Contains components for propane/LP conversion (Not Shown)
F0235 GA9050A-1 ManualControl ON/OFF Safety Valve/Pilot Kit
REMOTE CONTROL READY ON/OFF SAFETY VALVE/PILOT KIT
For all models. Required for remote control operation. Contains components for
propane/LP conversion. (Not Shown)
F0237 GA9150A Remote Control Ready ON/OFF Safety Valve/Pilot Kit
RECEIVER AND HAND-HELD REMOTE CONTROL KIT
For all models. Allows the gas log set to be turned on and off by using the hand-
held remote control. Valve/Pilot Kit GA9150A (F0237) must be purchased to use this
remote..
F0236 RCKIT4001 Standard On/Off Remote Control Kit
ASH BED MATERIAL (Vermiculite)
For all models. Use for firebox decoration only. (Not Shown)
F0240 GA9750A Ash Bed Material
GLOWING EMBERS
For all models. Use for firebox decoration only. (Not Shown)
F0243 GA9950A Glowing Embers
SILICA SAND
For all models. Use for firebox decoration only.
(Not Shown)
F0242 GA9850A Silica Sand
VOLCANIC STONE
For all models. Use for firebox decoration only. (Not Shown)
F0241 GA6067A Lava Cinders
DECORATIVE ASH BED CONTROL COVER - CDABKA
An attractive way to cover control knob and piezo ignitor. (Not Shown)
F0246 CDABKA Decorative Ash Bed
ACCESSORIES
Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, contact IHP at Comfortflame.US.com
for referral information.

Comfortflame.US.com 900579-00_NC20
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NOTES