Comfortflame Oxford18LZN User manual

PFS
®
US
WELCOME HOME TO WARMTH
TM
REPORT NO. F09-165
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 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.
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.
P900578-00
P/N 900578-00 Rev. NC 12/2015
Installation and Operation Instructions
Comfort Flame™ Vented Decorative
Log Set and Burner
Models
Oxford18LZN
Oxford24LZN
Amherst18LZN
Amherst24LZN
Berkshire18LZN
Berkshire24LZN
Mendocino18LZN
Mendocino24LZN

Comfortflame.US.com 900578-00_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 is a gas-fired appliance. It uses air
(oxygen) from the room in which it is installed. Provi-
sions 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.
WARNING: This appliance is for installation only
in a solid-fuel burning masonry or UL127 factory-built
fireplace, constructed ofnoncombustible material, and
connected to a working flue. (See page 5 for minimum
flue opening.)
This appliance may be installed in an aftermarket*,
permanently located, manufactured (mobile) home,
where not prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer.
State of Massachusetts: The installation must be made
by alicensed plumberor gasfitter inthe Commonwealth
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 seri-
ous injury or death from burns, fire, explosion, electrical
shock and carbon monoxide poisoning.
DANGER: Carbon monoxide poisoning may lead
to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poison-
ing 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 Gas: Natural gas is 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.
Safety............................................................................................. 2
Local Codes ................................................................................... 4
Unpacking...................................................................................... 4
Product Identification..................................................................... 4
Optional Product Features.............................................................. 4
Requirements for the Commonwealth of Massachusetts ...............4
Installation ..................................................................................... 5
Operation ..................................................................................... 12
Cleaning and Maintenance .......................................................... 13
Troubleshooting ........................................................................... 14
Service Hints................................................................................ 17
Technical Service ......................................................................... 17
Replacement Parts....................................................................... 17
Accessories.................................................................................. 17
Parts ............................................................................................ 18
Warranty ...................................................................................... 27
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.com900578-00_NC 3
1. 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
2. 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
3. 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 for damage. If damaged, repair flue before operating
appliance.
4. 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.
5. To reduce the creation of soot, follow the instructions in Cleaning
and Maintenance, page 13.
6. The installation and provisions for combustion and ventilation air must
conform with the National Fuel Gas Code, ANSI Z233.1/NFPA 54, Air
for Combustion and Ventilation.
7. Do not run log set
•whereammableliquidsorvaporsareusedorstored
•underdustyconditions
8. 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.
9. 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 (J1300) or GA9150A (J1302)) and any gas
control which has been under water.
10. To help prevent breakage, new logs must be broken-in (see Curing
Logs page 12).
11.Turn log set off and let cool before servicing, installing, or repair-
ing. Only a qualified service person should install, service, or repair
log set.
12.Provide adequate clearances around air openings.
13.This vented gas log set may not be installed in a bedroom or
bathroom in the Commonwealth of Massachusetts.
WARNING: Any change to this log set or its controls
can be dangerous.
WARNING:Do notuse ablower insert,heatexchanger
insert or other accessory not approved for use with this
appliance.
WARNING: This appliance is equipped for natural
gas. An optional propane/LP conversion kit must be
installed for use with propane/LP gas.
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.
Applianceassembly becomesveryhot whenin use.Keep
children and adults away from hot surface to avoid burns
or clothing ignition. Appliance will remain hot for a time
after shutdown. Allow surface to cool before touching.
Carefully supervise young children when they are in
the room with appliance.
You must operate this appliance with a fireplace screen
in place. Make sure fireplace screen is closed before
running appliance.
Keep the appliance area clear and free from combus-
tible materials, gasoline and other flammable vapors
and liquids.
SAFETY Continued

Comfortflame.US.com 900578-00_NC4
LOCAL CODES
Figure 1 - Product Identification (Dual Burner Shown)
Hearth Kit Model ________________
Serial Number __________________
Log Set Model __________________
Grate
Burner
Pan
Burner Manifold Burner Inlet
Fitting
Burner Clamp
Grate Steps (not
required for models
Oxford18LZN/24)
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
product 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 heater for any shipping damage. If heater is damaged con-
tact IHP at Comfortflame.US.com for replacement parts before
returning to dealer.
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 Accessories, page 17.
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 17.
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 17.
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 17.
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.

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INSTALLATION
CAUTION: Do not remove the data plates attached
to the burner pan. The data plates contain important
warranty and safety information.
WARNING: Before installing in a solid fuel burning
fireplace, the chimney flueand firebox must becleaned
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 for damage. If
damaged, repair flue before operating heater.
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.
BURNER ORIFICE
LOG NATURAL PROPANE/LP
SIZE IN. NUM. IN. NUM.
Oxford18LZN,
Amherst18LZN
Berkshire18LZN
0.120 31 0.073 49
Oxford24LZN,
Amherst24LZN
Berkshire24LZN,
Mendocino18LZN
0.129 30 0.086 44
Mendocino24LZN 0.1405 28 0.089 43
Model Burner De-
scription
Btu/Hr Input
Natural Gas
Btu/Hr Input
Propane/LP
Gas
Minimum
Vent Open-
ing
Amherst18LZN
Oxford18LZN 18" Single 50,000 40,000 8" dia.
Amherst24LZN
Oxford24LZN 24" Single 60,000 50,000 8" dia.
Berkshire18LZN 18" Dual 55,000 45,000 8" dia.
Berkshire18LZN
Berkshire24LZN 24" Dual 65,000 55,000 8" dia.
Mendocino18LZN 18" Triple 65,000 55,000 8" dia.
Mendocino24LZN 24" Triple 70,000 60,000 8" dia.
*Add 6" 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 2 - Technical Information Charts
MINIMUM FIREBOX SIZES
Models: Amherst18LZN, Oxford18LZN, Berkshire18LZN
Front Width* Back Width** Depth Height
28" 16" 14" 18"
Models: Amherst24LZN, Oxford24LZN, Berkshire24LZN
Front Width* Back Width** Depth Height
29 3/4" 17" 15 1/2" 18"
Model: Mendocino18LZN
Front Width* Back Width** Depth Height
28" 16" 15 1/2" 18"
Model: Mendocino24LZN
Front Width* Back Width** Depth Height
30" 22" 15 1/2" 18"

Comfortflame.US.com 900578-00_NC6
Figure 3 - Attaching Damper Clamp
Damper
Clamp
Damper
Clamp
Damper
Manufactured
Fireplace
Masonry Fireplace
Damper
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 17). 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.
For Massachusetts Residents Only
Installation of this vented gas log set in the Commonwealth of Mas-
sachusetts requires the damper be permanently removed or welded
in the fully open position.
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 qualifiedservice 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 a 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, page 8).
IMPORTANT: Install equipment shutoff valve in an accessible loca-
tion. 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 in supply line as
shown in Figure 4, page 7. Locate sediment trap where it is within
reach for cleaning. Install in piping system between fuel supply and
heater. 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 Continued

Comfortflame.US.com900578-00_NC 7
INSTALLATION Continued
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.
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect log set and its individual equipment shutoff valve from
gas supply piping system.
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.
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 Flexible Gas Hose
(if allowed by local codes)
Tee
Joint
Pipe
Nipple
Cap
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 noncorrosive leak detection fluid to gas joints.
Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 5 - Checking Gas Joints
Gas Meter
Equipment
Shutoff
Valve
HEARTH KIT ASSEMBLY AND INSTALLATION
Kit Assembly - Single and Dual-Flame Only
1. Determine which side gas line will be coming into fireplace.
NOTICE: Triple-burner models Mendocino18LZN and
Mendocino24LZN come pre-assembled with gas inlet
on right side of burner pan. DO NOT attempt to reposi-
tion burner on triple-burner models. If your fireplace
supply is on the left side, a longer 3/8" flex line should
be purchased and routed behind burner pan and away
from flame area.
2. Using a hammer and screw driver, remove knockout plug from
side of pan that corresponds to gas line (see Figure 6, page 8).
3. Unscrew burner inlet fitting from burner manifold.
4. Place burner manifold in pan with threaded opening facing open
knockout plug.
5. Using thread sealant (resistant to the action of propane/LP gas)
on larger end of fitting, screw burner inlet fitting through hole
and into burner manifold (see Figure 6, page 8). Tighten using a
wrench. If using propane/LP gas, see Propane/LP Gas Conversion,
page 10.
6. Using burner clamp, screw, and nut provided, assemble clamp
to pan (“U” style and triple burners only). This will hold burner
manifold in place.
7. If using optional GA9050A-1 (F0235) kit, go to Optional
GA9050A-1 (F0235) On/Off Safety Valve/Pilot Kit , page 8, for
installation instructions. If using optional GA9150A (F0237) kit,
follow instructions included with kit for installation and operation.

Comfortflame.US.com 900578-00_NC8
Burner Inlet
Fitting
Front
Burner
Burner
Manifold
Burner Pan
(Front)
Gas Connection
Must Be On
Right Side For
Triple Burner
TRIPLE-BURNER
Burner Manifold
Knockout
Plugs
Burner Pan
(Front)
Burner Inlet
Fitting
SINGLE-BURNER
Burner Inlet
Fitting
Screw
Nut Burner Clamp
Burner Pan
(Front)
Knockout
Plugs
DUAL-FLAME
Burner
Manifold
Figure 6 - Installing Burner
INSTALLATION Continued
Installation and Gas Connection
1. Place burner pan assembly in center of fireplace floor. Make sure
front of pan faces forward.
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.
Figure 7 - Connecting Gas to Appliance
Adapter
Fitting
Gas
Connector
Tube
Burner Pan
Assembly
(Facing Front
of Fireplace)
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 Accessories,
page 17.
WARNING: You must use a ON/OFF safety valve/
pilot kit for propane/LP conversion.
Natural Gas Installation
1. Thread gas control valve onto burner inlet fitting (see Figure 8,
page 9). Use thread sealant on male threads of burner inlet fitting.
Hold burner inlet fitting with a wrench to prevent overtightening
connection to the burner. Make sure control rod is facing the front
(see Figure 8, page 9).
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 10.
3. Install inlet fitting into inlet opening of gas control valve (see
Figure 10, page 9). Use thread sealant on male pipe threads.
4. Place burner pan assembly in center of fireplace floor. Make sure
front of pan faces forward.
5. Thread gas supply fitting to fireplace gas supply pipe. Adjust to
most convenient position.

Comfortflame.US.com900578-00_NC 9
INSTALLATION Continued
Figure 8 - Installing Gas Control Valve
Figure 9 - Gas Control Valve with Thermocouple and Pilot
Figure 10 - Installing Inlet Fitting and Gas Connector Tube
Burner Inlet
Fitting Gas Control
Valve
Burner Pan
Assembly
Control Rod
Thermocouple
and Line
Pilot and
Line
Gas Control
Valve
Gas Control
Valve
Gas Inlet
Fitting
Gas
Connector
Tube
Inlet
Opening
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 10.
8. Retighten and adjust location of gas control as necessary. Gas control
should be level, with control rod to front.
9. Install cover to burner pan using screws provided.
10.Install thermocouple, pilot, and ignitor onto valve cover as shown
in Figure 11. Use provided screws.
11.Push control rod extension onto “D” shaped control rod through
center hole in cover.
12.Install 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.
Figure 11 - Installing Cover, Control Knob, and Piezo Ignitor
Piezo Ignitor
Control Rod
Extension
Screw
Valve Cover
Control
Knob
Thermocouple
Ignitor
Pilot

Comfortflame.US.com 900578-00_NC10
Figure 12 - Burner Inlet Fittings with Injectors
Figure 13 - Remove Burner Inlet Fitting
NATURAL
GAS
FITTING
PROPANE/
LP GAS
FITTING
Injector
for Natural
Gas
Injector for
Propane/
LP Gas
Burner Inlet
Fitting for
Natural Gas
INSTALLATION Continued
PROPANE/LP GAS CONVERSION
To convert to propane/LP gas, burner inlet fitting and pilot orifice must
be replaced. Propane/LP burner inlet fitting is supplied with orifice
installed for a 24" log set. If you have an 18" or 30" 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. DO NOT
remove orifice from this fitting. Propane/LP burner inlet fitting is
included in hardware kit (see Figure 12).
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,oriceforburnerinletttingisred;
for a 30" set, it is black. If you have a 24" log set, orifice is already
installed inside fitting.
3. For an 18" or 30" 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 the action of propane/LP gas)
on larger end of fitting, screw burner inlet fitting through hole and
into burner manifold (see Figure 13). Tighten using a wrench.
5 . Follow steps 1 through 12 under Natural Gas Installation, pages
8 and 9.
Changing Pilot Orifice
The pilot is provided with a natural gas orifice installed. For propane/
LP gas you must remove it and replace it with an propane/LP orifice.
The accessory hardware kit contains an 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
12).
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 the 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.
ADDING PAN MATERIAL
1. Open bag of ash bed material (vermiculite) and spread it evenly
across burner pan to top. You may overflow front and sides of
pan to cover 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.
Figure 14 - Installing Propane/LP Pilot Orifice
Pilot Injector

Comfortflame.US.com900578-00_NC 11
INSTALLATION Continued
Figure 15 - Installing Grate (Pan Material Not Shown)
Grate Grate Steps
INSTALLING GRATE AND LOGS
1. Place grate over burner pan where two outer horizontal supports
on grate fit into two pan positioning notches in rear vertical edge
of pan.
2. Slide two rear log grate steps over two outer horizontal sup-
ports on grate as shown in Figure 15. (Not required for models
Oxford18LZN/24.)
3. Place back log on grate onto grate steps (see Figure 16).
4. Place front log(s) on grate and slide forward against front bars
on grate (see Figure 16).
NOTE: Logs may vary from Figure 16 depending on model.
5. 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.
Figure 17 - Placement of Top Logs
Figure 16 - Installing Front and Back Logs (Number and style
may vary)
Amherst Round Oak
Berkshire Oak
Oxford Oak

Comfortflame.US.com 900578-00_NC12
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 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. Light a match and lay it 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
doesn’t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 gas shutoff valve counterclock-
wise to open or clockwise to close, as necessary.
Shutting Off Appliance
Turn gas shutoff valve clockwise to OFF position.
CURING LOGS
During the 2-3 hour appliance break-in period, you may detect an
odor from the appliance as various paints and compounds used in
manufacturing of this log set cure. This is a normal and temporary
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logsinconsecutive1hourperiodsraisingtheameanad-
ditional 2" to full flame height for a total of three hours.
OPERATING INSTRUCTIONS
FOR GA9050A-1 (F0235)
Note: Operation instructions for GA9050A-1 (F0235) Remote Ready
Valve/Pilot Kit will be included with the kit.
1. STOP! Read the safety information, column 1.
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! Refer to the
National Fuel Gas Codes, ANSI Z233.1/NFPA 54, Air for Combus-
tionandVentilation.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 leave pilot lit and shut off burners only, turn control knob
clockwise to the PILOT position.

Comfortflame.US.com900578-00_NC 13
TO TURN OFF GAS
TO 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.
Figure 18 - Ignitor and Control Knob
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 19 - Thermocouple and Pilot
Pilot
Burner
Thermocouple
OPERATION Continued 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.

Comfortflame.US.com 900578-00_NC14
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
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
OBSERVED PROBLEM
Log set is smoking/sooting excessively
(Note: It is natural and unavoidable for
vented gas log sets to produce moderate
levels of carbon (soot) where flames con-
tact the logs. This is especially true with
propane/LP gas.)
Burner is excessively noisy
(Note:The movementand combustionof 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)

Comfortflame.US.com900578-00_NC 15
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
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.
Repeat igniting operation until air is
removed
5. Adjust pilot flame for approximately 2"
blue flame
6. Clean pilot (see Cleaning and Mainte-
nance, page 13) 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 13) 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
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)
TROUBLESHOOTING Continued

Comfortflame.US.com 900578-00_NC16
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 combustion air and create odors. These odors
will disappear over time.
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
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 7)
1. Locate and correct all leaks (see Checking
Gas Connections, page 7)
2. Replace control valve
1. Locate and correct all leaks (see Checking
Gas Connections, page 7)
TROUBLESHOOTING Continued
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 18 to 23 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.com900578-00_NC 17
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.
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.
Valve/Pilot Kit GA9150A (F0237) must be purchased to use this remote. (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)
80L42 GA6067A Volcanic Stone
DECORATIVE ASH BED CONTROL COVER - CDABKA
An attractive way to cover control knob and piezo ignitor. (Not Shown)
F0246 CDABKA Decorative Ash Bed

Comfortflame.US.com 900578-00_NC18
PARTS
MODELS OXFORD18LZN, OXFORD24LZN, AMHERST18LZN AND AMHERST24LZN
3
1
8
6
4
2
10
11
12
13
14
15
16
23
17
22 21
20
19
18
7
5
9
9
Oxford Round Oak Logs
Amherst Round Oak Logs
Amherst
Models
Only
CATALOG NO. MODEL
F2607 Oxford18LZN
F2608 Oxford24LZN
F2609 Amherst18LZN
F2610 Amherst24LZN

Comfortflame.US.com900578-00_NC 19
PARTS
This list contains replaceable parts used in your log set. When ordering parts, follow the instructions listed under Replacement Parts on
page 17 of this manual.
KEY
NO. CATALOG NO. DESCRIPTION
Oxford18LZN
F2607
Oxford24LZN
F2608
Amherst18LZN
F2609
Amherst24LZN
F2610 QTY.
1 J7197 Brass 3/8 FLR x 1/2 FPT Adapter • • • • 1
2 J7198 Brass 3/8 FLR x 3/8 FPT Adapter • • • • 1
3 J7221 Brass Air Mixer - Natural Gas • • • • 1
4 J7203 Natural Gas Injector • • 1
J7204 Natural Gas Injector • • 1
5 J7281 Burner Manifold • • 1
J7282 Burner Manifold • • 1
6 ** Burner Pan • • • • 1
7 J7287 Damper Clamp - Std. Assembly • • • • 1
8 J3725 Gas Line - 10" Flex • • • • 1
9 J7295 Grate Steps • • 2
10 J7288 Log Grate, 1/2" •1
J7289 Log Grate, 1/2" •1
J7290 Log Grate, 5/8" •1
J7291 Log Grate, 5/8" •1
11 J7303 Bottom Front Log (CPR-18) •1
J7304 Bottom Front Log (CPR-24) •1
12 J7301 Bottom Rear Log (CR-16) •1
J7302 Bottom Rear Log (CR-20) •1
13 J7238 CPR12 Top Log • • 1
14 J7239 CPR13Y Top Log •1
15 J7237 CPR13 Top Log • • 1
16 J7240 CPR14 Top Log • • 1
17 901640-01 Bottom Front Log (CHR-18) •1
901640-02 Bottom Front Log (CHR-24) •1
18 J7301 Bottom Rear Log (CR-16) •1
J7302 Bottom Rear Log (CR-20) •1
19 J7722 Top Log (CHR-15) •1
20 J7245 Top Log (CHR-10) • • 1
21 901100-01 Top Log (CHR-11) • • 1
22 J7244 Top Log (CHR-13Y) • • 1
23 J7247 Top Log (CHR-13Y) • • 1
PARTS AVAILABLE — NOT SHOWN
J7275 0.4# Bag Embers • • • • 1
J7274 1.0# Bag Ash Bed Material (Vermiculite) • • • • 1
**Not a eld replaceable part.
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 900578-00_NC20
3
13
1
8
6
4
2
10
7
5
9
9
11
12
14a
14a
17c
17b
17d
16a
16b
15b
16b
17f
17e
17a
15d
15f
14b
15c
15a
15e
Berkshire Oak Log Set
Coventry Oak Log Set
PARTS
MODELS BERKSHIRE18LZN, BERKSHIRE24LZN AND CVDR30
CATALOG NO. MODEL
F2611 Berkshire18LZN
F2612 Berkshire24LZN