Majectic UVLX18RN, UVLX18MN, UVLX24RN, UVLX24MN, UVLX30RN Installation And Operating Instructions Manual
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Vent-Free Gas Log Sets*
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Models: (Natural Gas) UVLX18RN, UVLX18MN,
UVLX24RN, UVLX24MN, UVLX30RN, UVLX30MN
Models: (Propane) UVLX18RP, UVLX18MP, UVLX24RP,
UVLX24MP, UVLX30RP, UVLX30MP
Installation and Operating Instructions
Decorative Gas Appliances for Installation in
Solid-Fuel Burning Fireplaces.
If the information in this manual is not followed exactly, a fire or explosion may result,
causing property damage, injury, or loss of life.
— Do not store or use gasoline or other flam-
mable 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.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
INSTALLER PLEASE NOTE:
DO NOT begin installation of this gas logset until all instructions have been read
and understood.
W A R N I N G
Installation and service must be performed
by a qualified agency, individual, firm, corpo
ration, or company, experienced in the instal
lation, repair, and servicing of this type of
gas appliance. Do not modify, alter or tamper
with any part of this heater, control, or logs.
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.
*These logsets are not for exterior use.
Tested and listed to ANSI Z21.11.2b-2004,
Unvented Heaters, and Z21.60b-2004;
CSA 2.26b-2004
ATTENTION
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CARBON MONOXIDE POISONING MAY LEAD TO DEATH.
When used without fresh air, vent-free log sets may give off carbon monoxide, an odorless, poisonous gas.
Some people - pregnant women, people with heart or lung disease, anemia, or persons under the influence of alcohol, and
persons at high altitudes are more affected by carbon monoxide than others.
Early signs of carbon monoxide poisoning resemble the flu - headache, dizziness, and/or nausea. If you have these signs,
the heater may not be installed or working properly. GET FRESH AIR AT ONCE!
again.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
W A R N I N G
Have the heater serviced before using it
20008845 3/08 Rev. 4
General Information
In order to assure a safe and effective installation, only a qualified service person who is
familiar with the building codes and installation
techniques appropriate to your area may install
and service this appliance.
The Logsets have been designed and tested to operate
safely when installed according to the installation instructions
contained in this manual. Read all instructions before starting
the installation.
In the Commonwealth of Massachusetts, all gas fitting
and installation of this heater shall only be done by a
licensed gas fitter or licensed plumber.
• The vent-free gas logset must be installed only in a fire-
place constructed of noncombustible material.
• These logsets are not for exterior use.
• This appliance is for supplemental heating only. It should not
be used as the primary heat source for a dwelling.
• The logset should be inspected before use and at least an-
nually thereafter. More frequent cleaning may be necessary
due to excessive lint from carpeting or bedding material.
• In the United States, the installation and operation must
conform to local codes or, in the absence of local codes, with
the National Fuel Gas Code, ANSI Z223.1/NFPA 54, latest
edition, CSA-B149.1 Installation Code, and with the National
Electrical Code, ANSI/NFPA70 (latest edition). State or local
codes may only allow operation of this appliance in a vented
configuratio. Check your state or local codes. In Canada,
check local province for proper use or CSA-B149. Refer to
pages 7 and 8 for installation details.
• The gas logset and its individual shutoff valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1/2 p.s.i.g. (3.5 kPa.) The gas logset must be isolated from
the gas supply piping system by closing its individual manual
shutoff valve during any pressure testing of the gas sup
ply piping system at test pressures equal to or less than 1/2
p.s.i.g. (3.5 kPa.)
• Do not, under any circumstances, burn solid fuel (wood,
paper, coal) in the fireplace where you have installed your log
set. Do not use it for cooking. Put nothing on top of the logs.
• The logset must be compatible with its fuel. Natural gas
requires different hardware than propane. Never attempt to
use natural gas with a propane logset or vice versa.
• For a propane burning logset, the supply tank must include
a high to low gas pressure regulator. The tank
doors. Do not, under any circumstances, locate supply tanks
inside any structure.
must be out-
• The fireplace must include a screen made of chain mesh
or a similar material. You must keep the screen closed at all
times during the operation of the logset; it will protect you in
the event of an explosion.
• WARNING: If the fireplace contains glass doors, they must
remain open at all times during the operation of the logset,
allowing combustion air to circulate.
• In order to avoid any possible gas leaks, apply pipe joint
compound to all non-flared, threaded connections involved
in this installation. For propane, the joint compound must be
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resistant to the corrosive action of propane.
• To check for leaks, always use a soapy water solution or a
sniffer.
Never test by using an open flame.
• The area around the gas logset must be free of all combus-
tible materials, especially gasoline or other highly flammable,
vapor producing liquids.
• Due to high temperatures, locate this logset away from both
high traffic areas and furniture and draperies.
• Children and adults alike should be aware of the high
surface temperatures; to avoid the risk of burns or ignition of
clothing they should stay away.
• Do not touch any part of the logset other than the controls
while it is operating or immediately after you turn it off.
• Supervise young children and pets carefully when they are
in the room where the logset is operating.
• Do not place clothing or other flammable material on or near
the logset.
• Make sure that any safety screen or guard, removed during
servicing, has been replaced before you use the logset.
• Do not, under any circumstances, install the logset in any
bedroom, bathroom, other small, enclosed room, mobile home
or recreational vehicle.
• Do not install the logset in a drafty area or use it with any
after-market blower system that may cause drafting and consequently alter the flame pattern.
• It is imperative that you keep clear all burner areas, control
compartments and passageways for circulating air.
• Do not move the logset in any way that might dislodge the
logs from their fixed positions. If you bump the logset check to
see if you have dislodged anything.
• Provide adequate clearances around air openings into the
combustion chamber and adequate accessibility clearance
for servicing and proper operation. NEVER obstruct the front
opening of the fireplace.
• Avoid propane tank dropping below 25% full. This will help
keep soot from occurring.
WARNING
This appliance is for installation in a solid-fuel
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burning masonry fireplace with a working flue,
a U.L.-127 Listed manufactured solid-fuel burning fireplace, in any CFM Corporation ventless
firebox or in any listed ventless firebox enclo
sure certified to I.A.S. U.S. requirements 2-97.
NOTICE
This is an unvented gas-fired heater. It uses air
(oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air
must be provided. Refer to pages 5 and 6.
This appliance operates as an unvented domestic room
heater when fitted to a masonry or factory-built woodburning fireplace with the flue damper closed, or as
a decorative appliance when the flue damper is fully
open. It must not be used for any other purpose and
must be fitted in a masonry or factory-built fireplace or
ventless firebox enclosure.
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20008845
Installation Requirements
A
B
D
C
The fireplace must meet the minimum dimensions listed below. (Fig. 1) Do not install the logset if the fireplace does
not meet these minimums.
Min. Fireplace Dimensions
A B C D
Logset Gas Front Rear Overall Overall Pressure (w.c.) Manifold Min. Input Max. Input
Width Width Depth Height Min. Max. Pressure BTU/hr BTU/hr
Inlet Supply
18” UVLX18RN
18” UVLX18MN 15,000 24,000
24” UVLX24RN
24” UVLX24MN 18,000 35,000
30” UVLX30RN
30” UVLX30MN 28,500 39,000
18” UVLX18RP
18” UVLX18MP 10.0” 17,000 24,000
24” UVLX24RP
24” UVLX24MP 10.0” 18,000 35,000
30” UVLX30RP
30” UVLX30MP 10.0” 29,000 39,000
Natural 25¹⁄₂” 18¹⁄₂” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
Propane 25¹⁄₂” 18¹⁄₂” 13¹⁄₂” 18” 11.0” 14.0”
20¹⁄₂” 17” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
25¹⁄₂” 23” 13¹⁄₂” 18” 5.5” 14.0” 3.5”
20¹⁄₂” 17” 13¹⁄₂” 18” 11.0” 14.0”
25¹⁄₂” 23” 13¹⁄₂” 18” 11.0” 14.0”
11.0” 18,000 24,000
11.0” 26,000 35,000
11.0” 29,500 39,000
17,000 24,000
24,500 35,000
25,000 39,000
exist in the immediate area. Cleaning solutions, paint,
solvents, cigarette smoke, candles, adhesives, new
carpet or textiles, etc., all can create fumes. These
fumes may mix with combustion air and can create
odor. Such odors will disappear over time, however,
the condition can be alleviated by opening a window
or otherwise providing additional ventilation to the
area.
A. Front Width B. Rear Width
C. Depth D. Height
Fig. 1 Minimum fireplace dimensions.
FD370-2
Pressure Test Points
UVLX-R Series: The gas control is equipped with a
captured screw-type pressure test point, therefore it is
not necessary to provide a 1/8” test point upstream of
the control.
UVLX-M Series: The gas valve control is equipped with
a captured screw type inlet and manifold pressure test
point on the right side of the valve.
Odor During Operation
Neither natural gas nor propane gas give off an odor
when burned. The nat ure of a vent free combustion
system, however, is such that odors may occasionally
be produced during heater operation when impurities
20008845
High Elevations
Input ratings are shown in BTU per hour and are
certified without deration from elevations up to
4,500 feet (1,370m) above sea level.
Nuisance outages may occur at altitudes above
4,500 feet (1,370m) if dirt, dust, lint and/or cobwebs are allowed to accumulate on burner and/or
ODS pilot. Monthly inspection and cleaning is
recommended for altitudes above 4,500 feet
(1,370m)
For elevations above 4,500 feet (1,370m) in USA,
installations must be in accordance with the
current ANSI Z223.1/NFPA 54 and/or local codes
having jurisdiction.
In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 4,500 feet (1,370m)
3
Planning
Planning the installation is an important first step. It will save
time and money later in the actual installation. In planning the
installation, consider:
• Where the heater will be located.
• All components needed to complete the installation.
• DO NOT use this heater in sleeping quarters, mobile
homes, or in recreational vehicles.
• Installation and repair should be done by a qualified service
person.
• DO NOT use this heater if any part has been under water.
Immediately call a qualified technician to inspect the appliance and replace any part of the control system and any gas
control which has been under water.
• When used as an unvented heater, always ensure there
is adequate ventilation from the room where the appliance is
operating. This appliance is equipped with an ODS (oxygen
depletion sensor) pilot light safety system designed to shut off
the appliance if enough fresh air is not available.
THIS APPLIANCE MUST NOT BE USED WITH GLASS
DOORS IN A CLOSED POSITION .
Keep the burner and control compartment clean. See installation and operating instructions supplied with the heater.
WARNING: During manufacturing, fabricating and ship
ping, various components of this appliance are treated
with certain oils, films or bonding agents. These chemi
cals are not harmful, but may produce annoying smoke
and smells as they are burned off during the initial operation of the appliance, possibly causing headaches or eye
or lung irritation. This is a normal and temporary occurrence. The initial break-in operation should last 2-3 hours
with the burner at its highest setting. Provide maximum
ventilation by opening windows, doors and the chimney
flue to allow odors to dissipate. Any odors remaining
after this initial break-in will be slight and will disappear
with continued use.
This appliance operates as an unvented domestic room
heater when fitted to a masonry or factory-built wood-burn
ing fireplace with the flue damper closed, or as a decorative
appliance when the flue damper is fully open. It must not be
used for any other purpose and must be fitted in a masonry or
factory-built fireplace or ventless firebox enclosure.
State, provincial or local codes may only allow operation of
this appliance in a vented configuration. Check your state or
local codes. If unvented room heaters are not permitted, the
fireplace vent damper must be locked at the minimum vent
area required by local codes or by the National Fuel Gas
Code (ANSI Z223.1/NFPA 54, latest edition).
When installed as a Decorative Gas Appliance for in
stallation in a solid-fuel burning fireplace, a minimum
permanent free opening of 29 square inches must be
maintained with a fixed damper stop provided with the
appliance. Minimum flue size for this appliance is 29
square inches.
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Proposition 65 Warning: Fuels used in gas, wood-
burning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known
to the State of California to cause cancer, birth defects and other reproductive harm.
California Health & Safety Code Sec. 25249.6
Installation Precautions
1. This vent-free gas appliance and its components
have been tested and will operate safely when installed
in accordance with this Installation Manual. Read all
instructions before starting the installation, and follow these instructions carefully during installation to
maximize the appliance’s benefit and safety. Failure to
follow them will void your warranty and may present a
fire hazard.
2. After opening the carton, refer to Replacement Parts
on Page 17 and 18, and remove the various parts.
Report to your dealer if any parts were damaged in
shipment.
• CFM Corporation warranty will be voided by,
and CFM Corporation disclaims any responsibility for, the following actions:
• Installation of any damaged appliance.
• Modification of the appliance.
• Installation other than as instructed by
CFM Corporation.
• Improper positioning of the gas logs.
• Installation and/or use of any component
part or accessory not manufactured or
approved by CFM Corporation, not withstanding any independent testing laboratory or
other third-party approval of such component
part or accessory.
Any such action may create a possible fire hazard.
Consult your local building codes.
This heater shall not be installed in a confined
space unless provisions are made for adequate
combustion and ventilation air.
WARNING!
Improper installation, adjustment, alteration,
service or maintenance can cause injury or property damage. Refer to this manual for assistance
or additional information, consult a qualified
installer, service agency or the gas supplier.
4
20008845
Installation Requirements
Fresh Air Requirements for
Combustion and Ventilation
WARNING
This heater must have fresh air for proper operation. If it does not, poor fuel combustion could
result. Read the following instructions to ensure
proper fresh air supply for this and other fuelburning appliances in your home.
Modern construction standards have resulted in
homes that are highly energy-efficient and that allow
little heat loss. Your home needs to breathe, however,
and all fuel-burning appliances need fresh air to function properly and safely. Exhaust fans, clothes dryers,
fireplaces, and other fuel burning appliances all use
the air inside the building. If the available fresh air
supply is insufficient to meet the demands of these appliances, problems can result.
The vent-free logsets have specific fresh air requirements. You must determine that these requirements
will be met within the space where the appliance will be
installed. The following information will help you ensure
that adequate fresh air is available for the heater to
function properly.
Provide for Adequate Ventilation
Any space within a home can be classified in these
categories:
1) Unusually tight construction
2) Confined space
3) Unconfined space.
First, determine which classification defines the intended installation space.
Unusually Tight Construction
You must provide additional fresh air if the space falls
into this classification. Unusually Tight Construction is
defined as construction wherein:
a. Walls and ceilings exposed to the outside atmosphere have a continuous water vapor barrier with a
rating of one perm or less, with openings gasketed or
sealed, and
b. weather stripping has been added on openable windows and doors and
c. caulking or sealants are applied to areas such as
joints around windows and door frames, between sole
plates and floors, between wall and ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at all other openings.
If your home meets all of the above criteria, you must
provide additional fresh air for the appliance as detailed
on Page 6.
If your home does not meet the above criteria, follow
the procedure below.
Determine If You Have a Confined or
Unconfined Space
Use the following formula to determine if you have a
confined or unconfined space.
Space is defined as the room in which you will install
the heater, plus any adjoining rooms with doorless
passageways or ventilation grilles between the rooms.
The National Fuel Gas Code defines a confined space
as a space whose volume is less than 50 cubic feet per
1,000 BTU per hour input rating (4.8m3 per Kw) of the
aggregate (total) input rating of all appliances installed
in that space and an unconfined space as a space
whose volume is not less than 50 cubic feet per 1,000
BTU per hour (4.8m3 per Kw) of the aggregate input
rating of all appliances installed in that space. Rooms
communicating directly with the space in which the appliances are installed, through openings not furnished
with doors, are considered a part of the unconfined
space.
1. Determine the volume of space (length x width x
height). Include adjoining rooms connected by doorless
passageways or ventilating grilles.
Example: A room that is 18’ x 12’ x 8’ has a volume of
1728 cubic feet. An adjoining open kitchen that is 10’
x 12’ x 8’ has a volume of 960 cubic feet. An adjoining
open dining room is 12’ x 12’ x 8’ with a volume of 1152
cubic feet. The total volume is 3840 cubic feet.
2. Divide the volume of space by 50 cubic feet. The
result is the maximum BTU/hour the space can support.
Example: 3840 cubic feet divided by 50 = 76.8 or
76,800 BTU/hour.
3. Add the BTU/hour ratings of all fuel-burning appliances installed in the same space, including the following:
Gas Water Heater Gas Furnace
Gas Fireplace Logs Vent-free Gas Heater
Vented Gas Heater* Other Gas Appliances*
* Do not include Direct-vent appliances as these use
outdoor air for combustion and vent to the outdoors.
20008845
5
Example:
Gas Range 55,000 BTU/hour
Vent-Free LogSet +25,000 BTU/hour
Total 80,000 BTU/hour
4. Compare the maximum BTU/hour rating the space
can support with the total BTU/hour used by the appliances.
Example: 76,800 BTU/hour the space can support
80,000 BTU/hour used by appliances
In this example, the maximum BTU/hour that the space
can support is less than the total used by the appliances.
The space is considered to be Confined Space. Additional air must be provided to meet the requirements
on the vent-free gas log set.
The installation and the provisions for combustion and
ventilation air must conform with the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, or the CSA-B149.1 Installation Code (Series).
A confined space may be ventilated in two ways:
A. Open up or provide at least two ventilating grilles to
an adjoining unconfined space. (Fig. 2)
Each of the two grilles must provide an opening of at
least 50 square inches, with all opening dimensions being at least 3”. One grille must be within 12” of the ceiling; the other within 12” of the floor. (If the total exceeds
100,000 BTU/hour, additional grilles will be needed.)
B. Vent the room directly to the outdoors. (Provide one
square inch of opening for each 4,000 BTU/hr.)
For further information on ventilation guidelines and sizing specifications, follow the National Fuel Gas Code/
NFPA 54/ANSI Z223.1/NFPA 54, Section 5.3.
If the total BTU/hour used by the appliances is less than
the maximum BTU/hr the space can support, the room
meets the Unconfined Space criteria and no further
ventilation is needed.
WARNING
This heater shall not be installed in a confined
space or unusually tight construciton unless
provisions are made for adequate combustion
and ventilation air.
WARNING
If the area in which the heater may be operated
is smaller than that defined as an unconfined
space, or if the building is of unusually tight
construction, provide adequate combustion and
ventilation air by one of the methods described
in the National Fuel Gas Code, ANSI Z223.1/NFPA
54, 1992, Sections 5.3, or applicable codes.
WARNING:
fuel burning fireplace, the chimney flue and firebox
must be cleaned of soot, creosote, and loose paint by a
qualified chimney cleaner.
Before installing the gas log set in a solid-
OPTION 1
- Vents to
Adjoining
Room
Fig. 2 Ventilation options for confined spaces.
12”
OPTION 3
- Vents to Adjoining Room
OPTION 2 Remove Door to
Adjoining Room
12”
VO370-2
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20008845
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