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.

Comfortflame.US.com900578-00_NC 5
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"