Page 1
Unvented Gas Log Heater
Installation and Operating Instructions
Models: 18VL, 24VL, 30VL
WARNINGS
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of
life.
– 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.
• 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.
– Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
This appliance may be installed in an
a f t e r m a r k e t , p e r m a n e n t l y l o c a t e d ,
manufactured (mobile) home, where not
prohibited by local codes.
This is an unvented gas-fired heater. It uses
air (oxygen) from the room in which it is
installed. Provisions for adequate combustion
and vent ilation air must be provided.
Refer to Page 6.
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.
The design of this appliance complies with Standard Z21.11.2 of the American National Standards Institute
and is so certified by the International Approval Service.
In accordance with Standard Z21.11.2, this appliance may be operated as an unvented heater when
installed in a solid-fuel burning fireplace with the flue damper closed or an ANSI approved ventless firebox
enclosure. Follow the applicable instructions contained in this manual. (State or Local Codes may only
allow operation of this appliance in a vented configuration. Check your state or local codes.)
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
53D0501 8/10 Rev. 8
Page 2
18/24/30VL Unvented Gas Logs
CONTENTS
Thank you and congratulations on your purchase of a Majestic Log Set.
PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE!
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in a possible fire hazard and will void the warranty.
Important Safety Information .....................................2
Product Features and Specifications ....................... 5
Gas Pressures ........................................................5
Gas Specifications ..................................................5
Combustion and Ventilation Air ................................. 6
Fireplace and Hearth Dimensions ............................. 7
Clearances ...................................................................8
How This Appliance Operates .................................... 9
Gas Line Installation .................................................10
Electrical Wiring - Millivolt ........................................ 11
Connect Optional Wall Switch or Thermostat ....... 11
Connect Remote Receiver .................................... 12
Installation and Adjustment .....................................13
Log Placement ........................................................... 15
Splendor Glow Fiber Log Placement ....................15
Refractory Log Placement .................................... 16
Lighting Instructions ................................................. 17
For Your Safety Read Before Lighting .................. 18
Manual Control Lighting Instructions ..................... 19
Millivolt Control Lighting Instructions ..................... 20
Thermostat Control Lighting Instructions ..............21
Match Lighting Instructions ...................................22
Safety Checklist .........................................................22
Troubleshooting ........................................................ 23
Maintenance ...............................................................24
Replacement Parts .................................................... 25
Warranty ..................................................................... 27
Important Information
This owner's manual is to be left with the gas log appliance. It contains information to be used before, during
and after the installation of the gas log appliance. The installer of the gas log appliance should carefully
study this manual before installing the appliance. All people who will be operating the appliance should also
carefully study this manual.
The installation of this appliance must conform with local codes or, in the absence of local codes, with the
National Fuel Gas Code ANSI Z223.1/NFPA 54. The installation and any service of the appliance must be
by a qualified service person. After installing the appliance, the installer should describe the operation of
the appliance to the people who will be operating it.
The appliance is equipped with a pilot safety system that turns off the appliance if enough fresh air is not
available. The operation of and the cleaning of the pilot light safety system are explained in other sections of
this manual. Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control, which
has been under water.
18VL, 24VL, 30VL
Certified To
(latest editions)
ANSI Z21.11.2
Unvented Heaters
Z21.60
CSA 2.26
2
53D0501
Page 3
IMPORTANT SAFETY INFORMATION
18/24/30VL Unvented Gas Logs
INSTALLER
Please leave these instructions with the appliance.
OWNER
Please retain these instructions for future reference
This appliance, as any gas-fired appliance, can produce poisonous carbon monoxide along with other
combustion products. Carbon monoxide, in strong concentrations, can cause sickness, serious personal
injury and death.
Early signs of carbon monoxide poisoning may resemble the flue with head-aches, dizziness and/or
nausea. If you have these signs, the appliance may not be working properly. Get fresh air at once!
Immediately have appliance serviced by a qualified technician.
WARNINGDANGERWARNING
Some people (pregnant women, persons with heart or lung disease, anemia, those under the influence
of alcohol, those at high altitudes) are more affected by carbon monoxide than others.
Operation of this appliance on gases for which
it is not equipped may lead to carbon monoxide
poisoning.
This appliance cannot be converted to a gas
other than the type for which it is equipped at
the factory.
WARNINGDANGER
Any change to this appliance or its controls can
be dangerous.
NOTE: An unvented room appliance is an unvented, selfcontained, gas burning appliance for connection to the
house fuel supply system and for furnishing heat to the
space in which installed directly from the appliance without
duct connection.
IMPORTANT: When installed as an unvented room heater,
this appliance is to be used as a supplemental heat source
only. Do not use this appliance as a primary heat source.
This appliance shall not be installed in a confined space or
unusually tight construction unless provisions are provided
for adequate combustion and ventilation air.
When properly installed, used and maintained, this
appliance should not produce carbon monoxide in
dangerous quantities. However, since carbon monoxide
can be deadly poisonous, the installer and all users of
this appliance should read and follow these instructions
carefully.
The type of gas for which this appliance is equipped is
marked on the rating label attached to the appliance.
"NAT" is natural gas; "LP" is propane or propane butane
mixture gas.
Gaseous fuels are highly explosive in certain concentrations
and are very flammable. Any gas leaks in the plumbing
supplying gas to this appliance can lead to fire or
explosion.
Do not install this appliance in any area where
gasoline or any combustible or explosive
material will be used or stored. The flame in
this appliance is not isolated from the air space
it heats and it will ignite flammable vapors, dust
particles or other combustible materials that
come in contact with it which can result in an
explosion or fire.
Sufficient space must be provided around this appliance
to provide air for combustion and ventilation and to allow
room for servicing. To provide the required spacing; do not
install this appliance in any solid-fuel burning fireplace with
any dimension smaller than shown by Table 1.
This appliance is for installation only in a solid-fuel burning
masonry fireplace or a UL 127 factory-built fireplace or a
listed ventless firebox enclosure as specified within this
manual. This appliance has been design certified for these
installations. Exception: DO NOT install this appliance in a
factory-built fireplace that includes instructions stating the
factory-built fireplace has not been tested with, or should
not be used with, unvented gas log appliances.
18VL, 24VL and 30VL gas log appliances are design
certified as unvented room appliances for installation in
an ANSI approved ventless firebox enclosure.
Notice: If installed in a VF32-R, VF36-R, VF42-R, EVB36,
VF36, VF42, or VF3D ventless fireplace enclosure, this
gas log appliance can only be operated as an unvented
heater. Unvented heaters are not permitted by some
state or local codes. Before installing a ventless firebox
enclosure for this gas log appliance, check your state or
local codes to determine if unvented heaters are permitted
.
53D0501
3
Page 4
18/24/30VL Unvented Gas Logs
in your area. If unvented heaters are permitted in your
area, follow the instructions accompanying the ventless
firebox enclosure.
Do not install this appliance in a bedroom or bathroom.
Do not install this appliance in a fireplace whose flue is
serving a separate solid-fuel burning appliance.
If this appliance is installed in a fireplace equipped with
outside air facilities and the entrance point of the outside
air is located in a plane above the bottom of the fireplace,
the outside air facility must be sealed at the point it enters
the fireplace. Failure to do this may create a fire hazard.
Due to high temperatures, this appliance must be located
out of traffic and away from furniture and drapery.
Installation and repair should be done by a qualified service
person.
IMPORTANT SAFETY INFORMATION
Never connect unit to private (non-utility)
gas wells. This gas is commonly known as
wellhead gas.
WARNING
4
53D0501
Page 5
PRODUCT FEATURES & SPECIFICATIONS
18/24/30VL Unvented Gas Logs
GAS PRESSURES
*Natural **Propane (LP)
Inlet Minimum 5.0” w.c. 11.0” w.c.
Inlet Maximum 10.5” w.c. 13.0” w.c.
Pilot Regulator
Millivolt & T-Stat 3.5" w.c. n/a
Regulator Pressure
Manual 3.0” w.c. 10.0” w.c.
Millivolt & T-Stat 3.5" w.c. 10.0" w.c.
*NOTE: An external regulator is required to reduce supply
pressure to a maximum of 10Z\x" W.C. on natural gas systems operating at higher pressure.
**NOTE: An external regulator is required to reduce supply pressure to a maximum of 13” w.c.
GAS SPECIFICATIONS
Max.Input Min. Input
Model Fuel Control BTU/h BTU/h
18VLNM Nat. Manual 18,000 28,000
18VLPM LP Manual 18,000 28,000
24VLNM Nat. Manual 20,000 34,000
24VLPM LP Manual 20,000 34,000
30VLNM Nat. Manual 20,000 34,000
30VLPM LP Manual 20,000 34,000
18VLNV Nat. Millivolt 18,000 28,000
18VLPV LP Millivolt 20,000 28,000
24VLNV Nat. Millivolt 25,000 34,000
24VLPV LP Millivolt 30,000 34,000
30VLNV Nat. Millivolt 25,000 34,000
30VLPV LP Millivolt 30,000 34,000
18VLNT Nat. T-Stat 18,000 28,000
18VLPT LP T-Stat 18,000 28,000
24VLNT Nat. T-Stat 25,000 38,000
24VLPT LP T-Stat 20,000 34,000
30VLNT Nat. T-Stat 25,000 38,000
30VLPT LP T-Stat 20,000 34,000
53D0501
5
Page 6
18/24/30VL Unvented Gas Logs
ADEQUATE COMBUSTION and VENTILATION AIR
As do all gas-fired appliances, this appliance requires
fresh air (oxygen) for proper combustion and ventilation.
In some cases, but not all, normal air infiltration into a
building will supply a sufficient amount of fresh air for
proper combustion and ventilation. The number of gasfired appliances involved, the type of space being utilized,
and the construction tightness of the building involved
must all be considered when determining whether normal
air infiltration is sufficient or if additional fresh air will be
needed for proper combustion and ventilation of the gasfired appliances installed in a particular space.
Unconfined space and confined space are the terms used
to describe the space in which gas-fired appliances may be
installed. The National Fuel Gas Code, ANSI Z223.1/NFPA
54 defines a confined space as a space whose volume is
less than 50 cubic feet per 1,000 BTU per hour (4.8 m3 per
kW) of the aggregate input rating of all gas-fired 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 "to be defined" space. For example, three rooms in
a house are adjoining with interconnecting passageways
but no doors; each room has an 8-foot ceiling. One room
is 16 x 12 feet, one is 12 x 12 feet and one is 10 x 14 feet.
The total volume of the three rooms is 3,808 cubic feet;
(8x16x12) plus (8x12x12) plus (8x10x14) equals 3,808
cubic feet. To be considered an unconfined space, the total
maximum aggregate input rating of all gas-fired appliances
installed in the 3,808 cubic feet space must not exceed
76,160 BTU per hour; (3,808 divided by 50) x 1,000 equals
76,160 BTU per hour.
Normal air infiltration into an unconfined space will be
adequate to supply the necessary fresh air for proper
combustion and ventilation if the building is not constructed
unusually tight. However, if the building is of unusually
tight construction, additional fresh air from outside will
be required for proper combustion and ventilation of the
gas-fired appliances installed in the unconfined space.
Unusually tight construction is defined as constructions
where:
a) walls and ceilings exposed to the outside atmosphere
have a continuous water vapor retarder with a rating
of 1 perm (6 x 1011 kg per pa-sec-m2) or less with
openings gasketed or sealed;
b) weather stripping has been added on openable
windows and doors, and
If the area in which this appliance 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, Air for
Combustion and Ventilation, or applicable local
WARNING
codes. This appliance shall not be installed in a
confined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
Because water is a product of fuel gas
combustion, all gas-fired appliance s will
produce some water vapor (humidity) when
fired. The water vapor may collect on windows
and walls, especially in buildings constructed
unusually tight. Providing additional fresh air
CAUTION
will reduce the amount of water vapor which
collects on the windows and walls.
This appliance shall not be installed in a confined space
or unusually tight construction unless provisions are
provided for adequate combustion and ventilation
air.
Consult your local building inspector or section 5.3 in the
National Fuel Gas Code ANSI Z223.1/NFPA 54 if you
have any questions about fresh air requirements for proper
combustion and ventilation of gas-fired appliances.
This appliance is equipped with an ODS (oxygen depletion
sensor) pilot light safety system that turns off the appliance
if not enough fresh air is available. Never attempt to adjust
this safety system. It will not operate correctly if tampered
with. When used without fresh air, appliance may give off
carbon monoxide, an odorless, poisonous gas.
If this appliance shuts off during operation, do not relight
it until you provide additional fresh air. If permanent
provisions for providing additional fresh air have not been
implemented, the additional fresh air may be provided
by opening a window an inch or two while the appliance
is operating. If the appliance keeps shutting off during
operation, have it serviced.
c) caulking or sealants are applied to areas such as
joints around window and door frames, between
sole plates and floors, between wall-ceiling joints,
between wall panels, at penetrations for plumbing,
electrical, and gas lines, and at other openings.
6
The ODS (Oxygen Depletion Sensor) Pilot light
safety system is not a substitute for proper
installation and use of this appliance. Failure to
observe installation and use guidelines in this
manual can lead to carbon monoxide poisoning,
WARNING
fire or explosion.
53D0501
Page 7
FIREPLACE and HEARTH DIMENSIONS
A
B
C
D
18/24/30VL Unvented Gas Logs
This appliance is for installation only in a solid-fuel burning masonry or UL127 factorybuilt fireplace, vent free appliance, or in listed ventless firebox enclosure. It has been
design certified for these installations.
Exception: DO NOT install this appliance in a factory-built fireplace that includes
instructions stating it has not been tested or should not be used with unvented gas
WARNING
logs.
Minimum Fireplace Dimensions
Model A B C D
VL18 19" 13Z\v" 25" 17"
VL24 22Z\x" 13Z\v" 27" 17"
VL30 25Z\x" 13Z\v" 321/2" 17"
LG567
Figure 1 Minimum Fireplace Dimensions
53D0501
7
Page 8
18/24/30VL Unvented Gas Logs
12”
12”
8”
21/2”
10”
16”
18”
The minimum clearance to any combustible item in front of this appliance should be no less
than 36 inches from the face of the fireplace in which this appliance is installed.
Any combustible mantel present on the fireplace facing of any fireplace in which this appliance is
installed must not extend more than 12 inches from the face of the fireplace. Also, the combustible
mantel must be at least 28 inches above the fireplace opening as shown in Figure 2 unless a
CABL/CABR fireplace canopy is installed as described.
If a combustible mantel is less than 28 inches above the fireplace opening of any fireplace in
which this appliance is installed, obtain a CABL/CABR fireplace canopy from your appliance
dealer and install it on the fireplace according to the instructions furnished with the CABL/CABR
fireplace canopy. For any fireplace in which this appliance and canopy are both installed, the
mantel extensions and corresponding mantel clearances are as shown in Figure 2. The mantel
must lie in or above the dashed line shown in Figure 2. (The mantel extension is the distance
the mantel extends from the fireplace facing. The mantel clearance is the distance from the
fireplace opening to the bottom of the mantel.)
Any other combustible or noncombustible extension or trim extending from the fireplace facing
of any fireplace in which this appliance is installed must comply with (1) local codes or, in the
absence of local codes, with the latest edition of ANSI/NFPA 211 if the fireplace is an at-site
masonry solid-fuel burning fireplace, or (2) the instructions provided by the fireplace manufacturer
if the fireplace is a prefabricated factory-built solid-fuel burning fireplace or is a listed ventless
firebox enclosure.
CLEARANCES
CLEARANCE TO COMBUSTIBLES
Front: No less than 36 inches from the face of the fireplace in which the appliance is installed.
Mantel: Must not extend more than 12 inches from the face of the fireplace and must be at least 28
inches above the fireplace opening (unless a CABL/CABR fireplace canopy is installed.) Figure 2
Minimum Mantel Clearance
Mantel Extension
Mantel
Clearance
Figure 2 Mantel Clearances
28"
Mantel
Extensions
Minimum Mantel Clearances with
CABL/CABR Canopy
Canopy
LG568
Mantel
Clearances
8
53D0501
Page 9
HOW THIS APPLIANCE OPERATES
18/24/30VL Unvented Gas Logs
Never use this appliance to dry clothes, cook
on or for any purpose other than providing heat
into the area around the appliance.
This control system is a safety system and
must not be tampered with. Do not attempt to
make any adjustments to the control or pilot
WARNING
other than those described in the installation
and adjustment or troubleshooting sections of
this manual.
This appliance is equipped with a pilot burner, two main burners, and an ignition tube, which connects
the two main burners. The flame from the pilot burner ignites the top main burner. The flame from
the top main burner then ignites the gas in the ignition tube which in turn ignites the bottom main
burner. The pilot burner, top main burner and bottom main burner then burn in unison.
The control system on this appliance serves several functions. It regulates the incoming gas to
the correct pressure for the rate required. It will not regulate LP gas directly from the container. A
separate regulator must be installed on the tank or bottle to reduce the gas pressure supplied to the
appliance to between 11 and 13 inches water column. The control system also provides a safety
shutoff to allow gas to flow to the main burners only when the pilot is burning and to shut off gas to
the pilot burner and main burners should the pilot flame not be burning. It provides a manual safety
valve to turn gas on and off to the main burners. There is a safety feature in the control valve which
will lock the control valve in the OFF position for a few minutes until the pilot valve closes should
the knob be turned OFF while the pilot is burning. This prevents escape of unburned gases. The
control system also regulates the pilot gas flow to that required for proper operation and provided
for shutoff of the gas to the pilot burner and main burners should the oxygen in the area of the
appliance be depleted to near dangerous levels.
This control system is a safety system and must not be tampered with. Do not attempt to make
any adjustments to the control or pilot except those listed in the installation and adjustment or
troubleshooting sections.
Air is pulled into the main burners by the gas stream and mixed with the gas inside the main burners
before burning. Additional air enters the appliance through openings in the back, bottom, front and
sides of the appliance to complete the burning of the gas. See the combustion and ventilation air
requirements section of this manual for source of the air. Blocking or altering airflow into and away
from the appliance could cause improper combustion and the production of carbon monoxide gas
that could accumulate to hazardous concentrations. To prevent a disruption of the airflow through
the appliance, keep the appliance clean as described by the maintenance section of this manual.
This appliance's heat input is best utilized when the appliance is installed in a solid-fuel burning
fireplace with the flue damper closed, or when installed in a listed ventless firebox enclosure. The
amount of heat input utilizable when the appliance is installed in a solid-fuel burning fireplace with
the flue damper open is dependent upon how much of the heat input escapes through the open
flue damper.
53D0501
9
Page 10
18/24/30VL Unvented Gas Logs
GAS LINE INSTALLATION
Operation of this appliance on LP gas without
an approved regulator at the supply container
will lead to gas leaks with possible fire or
explosion.
DANGER
Do not use candles, matches or other ignition
sources when checking for leaks. Fuel gases are
very flammable and, in certain concentrations,
explosive. Checking for leaks with an open
DANGER
flame may lead to fire or explosion.
All gas piping must be installed to comply with local codes
or, in the absence of local codes, with the National Fuel Gas
Code ANSI Z223.1/NFPA 54. Only flexible hoses listed by
a certified agency may be used.
All gas piping must be installed to comply with local codes
or, in the absence of local codes, with the National Fuel
Gas Code ANSI Z223.1/NFPA 54. Do not use flexible hose
unless the hose is listed by a recognized testing agency for
use with gas and is approved by the local code authority.
Unions in gas lines shall be of the ground joint type.
Compounds used on threaded joints of gas piping must be
resistant to the action of liquefied petroleum gas.
For purpose of input adjustment, the gas piping must be of
sufficient size to provide a minimum natural gas pressure at
the appliance of 5 inches water column or 11 inches for LP
gases. The maximum inlet gas pressure to the appliance
must not exceed 10 inches for natural gas and 13 inches
for LP gases. If this appliance is to be supplied with LP gas
(bottled propane) the tank or bottle supplying the gas must
have a regulator that reduces the gas pressure to between
11 and 13 inches water column. The control will not operate
with gas line pressure directly from the tank and may leak
gas due to this excessive pressure.
Include a manual shutoff valve and union in the line so the
appliance may be disconnected for servicing. Include a drip
leg and a plugged 1/8 inch NPT tapping in the line also.
The tapping must be accessible for test gauge connection
immediately upstream of the gas supply connection to the
appliance.
Use a soap-water solution or a liquid gas leak detector to
coat each joint in the piping system and look for bubbles
which indicate gas leaks. Repair all gas leaks.
A standard control assembly and typical gas-piping diagram
are shown by Figure 3.
The appliance 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
PSIG (3 kPa). The appliance must be isolated
from the gas supply piping system by closing
its individual manual shutoff valve during
any pressure testing of the gas supply piping
WARNING
system at test pressures equal to or less than
1/2 PSIG (3 kPa). Pressures in excess of 1/2
PSIG (3 kPa) will cause damage to the control
valve and may cause damage to the shutoff
valve.
Control Valve
Main Regulator
Union
Gas Supply
Line
Shut off Valve
Tee
NOTES:
1. Provide a 1/8" NPT plugged tapping for pressure
gauge connection between shutoff valve and main
regulator.
2. For clarity, some appliance plumbing not shown.
Figure 3 Gas Connection
Drip Leg
LG569
10
53D0501
Page 11
ELECTRICAL WIRING - MILLIVOLT
18/24/30VL Unvented Gas Logs
The millivolt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPERATE.
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
CAUTION
ODS Pilot
On/Off Switch
ODS Pilot
Wall
Switch
Millivolt
On/Off
Switch
TH = 3
TP = 1
TP/TH = 2
Valve
Spade Terminal
Figure 4 Wiring Diagram
Switch
CONNECT OPTIONAL WALL SWITCH OR
THERMOSTAT
1. Use 18 awg, two-wire cable, 15 feet maximum length.
2. At one end of the cable, connect both wires to the wall
switch or thermostat. At the other end, connect one
wire to TP/TH and one wire to TH, or connect the wall
switch/thermostat to the two male (0.25") terminals on
the left side of the unit. The color of the wires does not
matter.
53D0501
LG570
Optional Wall
Switch, Remote
Receiver or
Optional T-Stat
11
Page 12
18/24/30VL Unvented Gas Logs
ELECTRICAL WIRING - MILLIVOLT
CONNECT REMOTE RECEIVER
THESE INSTRUCTIONS SUPERSEDE THE SECTION ENTITLED "HEARTH
MOUNT" IN THE MILLIVOLT HAND HELD REMOTE INSTRUCTIONS SUPPLIED
WITH THE REMOTE.
1. Plug wire into the back of the remote receiver.
2. Connect the other end of the wire harness to the wire harness attached to the unit located on
the left side. Do not let the wires touch the grate or burner.
3. Stick velcro pads with self-adhesive backing to the side of the remote receiver and to the left
side of the unit. Figure 5
4. Attach remote receiver with velcro pads. Control switch must face forward.
Remote Receiver
Figure 5 Install Remote Receiver
NOTE: Heat reduces battery life. You can protect the
receiver and extend battery life by mounting receiver
in wall or other location outside the fireplace.
LG571
12
53D0501
Page 13
INSTALLATION and ADJUSTMENT
Use these instructions as a guide while installing and
adjusting this gas log appliance. The installation must
conform with local codes or, in the absence of local codes,
with the National Fuel Gas Code ANSI Z223.1/NFPA 54.
The following installation and adjustment steps apply to
unvented heater installations. If this appliance is to be
installed in a solid-fuel burning fireplace, make sure the
fireplace is large enough; refer to Table 1.
1. To comply with the size requirements for the appliance,
refer to Table 1. In accordance with Standards
Z21.11.2, this appliance may be operated as an
unvented heater when installed in a solid-fuel burning
fireplace with the flue damper closed or in an ANSI
approved ventless firebox enclosure.
2. WARNING: If this appliance is to be installed in a
previously-used fireplace, thoroughly clean the interior
of the fireplace (including any smoke shelf, damper
frame and chimney flue) of soot, creosote, ashes,
loose paint or any other substance which could be
transported by water vapor or circulated by air flow
into the space served by this appliance. Cleaning of
a solid-fuel burning fireplace must be performed by
a qualified chimney cleaner. GCPK Gas Conversion
Prep Kit, available at your local dealer, may be used to
return an even finish to refractory panels which have
been discolored due to use.
3. If desired, permanently close any fireplace chimney
damper in the fireplace. (As noted earlier, this
appliance's heat input is best utilized when the
appliance is installed in a solid-fuel burning fireplace
with the flue damper closed, or when installed in a
listed ventless firebox enclosure. The amount of heat
input utilizable when the appliance is installed in a
solid-fuel burning fireplace with the flue damper open
is dependent upon how much of the heat input escapes
through the open flue damper.)
4. Permanently close any outside air duct and/or ash
dump in the fireplace.
5. Install a gas supply line according to the gas piping and
gas pressure requirements section of this manual.
6. Set the appliance base assembly in the fireplace and
connect the gas supply line to the main regulator of
the appliance. The base assembly may be secured to
the fireplace by using masonry screws. Figure 6
7. Before setting logs in place, turn the gas on and check
each joint in the gas line carefully with a soap and water
or liquid gas leak solution for leaks. Bubbles indicate
leaks. Repair any leaks before proceeding.
8. It is most convenient to light the pilot burner and check
the operation of the main burners with the logs not in
place. After carefully checking the gas line for leaks
18/24/30VL Unvented Gas Logs
This appliance is for installation only in a solidfuel burning masonry fireplace or a UL 127
factory-built fireplace or a listed ventless firebox
enclosure as specified within this manual. This
appliance has been design certified for these
installations. Exception: DO NOT install this
appliance in a factory-built fireplace that
WARNING
includes instructions stating the factorybuilt fireplace has not been tested with, or
should not be used with, unvented gas log
appliances.
Provisions for combustion and ventilation air for
this appliance must be in accordance with the
Combustion and Ventilation Air Requirements
section of this manual.
WARNING
Masonry
Screws
Figure 6 Secure Base Assembly
and correcting any found, refer to the lighting and
operation section of this manual. Carefully read the
safety information, then light the pilot burner according
to the instructions. The pilot flame should be clear blue
and should appear similar to the flame as shown in
Figure 7.
LG572
53D0501
13
Page 14
18/24/30VL Unvented Gas Logs
INSTALLATION and ADJUSTMENT
Pilot Flame
1" - 1Z\x" for LP Models
2C\v" - 3Z\v" for NG Models
Thermocouple
for NG
Figure 7 Pilot Flame
LG573
Thermocouple for LP
Air Intake
NOTE: Never attempt to adjust the pilot in any way,
to do so will cause it not to operate as it is intended.
Do not use candles, matches or other ignition
sources when checking for gas leaks. Fuel
gases are very flammable and in certain
concentrations, explosive. Checking for
leaks with an open flame may lead to fire or
DANGER
explosion.
9. After the pilot flame is established, turn the appliance's
control knob counterclockwise to low then press the
control knob inward slightly and continue turning
counterclockwise to high. Wait for the two main burners
to ignite. If the burner's do not light within four seconds
after the control knob has been turned to high, or if the
bottom main burner does not ignite within four seconds
after the top main burner ignites, turn the control knob
clockwise to pilot and read the troubleshooting section
of this manual for help in determining why ignition did
not occur. Always follow this procedure when igniting
the two main burners.
10. With the pilot and main burners in operation, check
each connection in the gas supply system and control
system for leaks with a soap and water or liquid gas
leak solution. If any leaks are found, turn the gas supply
off and repair leaks before proceeding.
11. The flames of each main burner should appear similar
to the flames shown in Figure 8. The flames may have
red or orange streaks caused by dust in the air.
The presence of soot on the logs or any part
of this appliance indicates a problem exists. If
soot is found, turn off the gas to the appliance
and call a qualified service technician.
Refer to the Troubleshooting section of this
WARNING
instruction manual for assistance in determining
cause and solution to the problem.
Yellow Flame
Top Rear
Burner
* 1/2" to 1" Blue
(Natural Gas)
1" to 11/2" Blue
(LP Gas)
Figure 8 Correct Burner Flame Appearance
*
LG574
Front Burner
NOTICE: The rear burner should have a minimum of 1/2"
of blue at the base of the burner flame on natural gas fired
appliances, and a minimum of 1" of blue at the base of the
burner flame on propane or LP gas fired appliances. There
should be no yellow flame within this minimum height.
12" Approx.
6" Approx.
2" Approx.
Flame: Pale Blue
Flame: Bright Blue
Incorrect placement of the logs on the base
can cause the production of carbon monoxide
gas and soot. Always keep the logs properly
placed.
WARNING
14
53D0501
Page 15
LOG PLACEMENT
18/24/30VL Unvented Gas Logs
SPLENDOR GLOW FIBER LOG PLACEMENT
Figure 9
1. Position the metal log support assembly on the base by aligning the notches of the log support
assembly with the corresponding four log stops and two rear tabs of the base.
2. Set the back log on the log support assembly. Make sure the holes in the back log fit onto the
matching pins projecting from the log support assembly.
3. Set the middle log on the log support assembly as shown in Figure 19. Make sure the holes in
the middle log fit onto the matching pins projecting from the log support assembly.
4. Set the front log on the log support assembly. Make sure the holes in the front log fit onto the
matching pins projecting from the log support assembly.
5. Set the straight/left top log onto the back log, middle log and front log. Make sure the holes in
the top log fit onto the matching pins projecting from the back and middle log.
6. Set the top onto the back log and middle log. Make sure the holes in the log fit onto the matching
pins projecting from the back and middle log.
Figure 9 Splendor Glow Log Placement
53D0501
LG575
15
Page 16
18/24/30VL Unvented Gas Logs
LOG PLACEMENT
REFRACTORY LOG PLACEMENT
1. Set the back log in position with the locating pins behind the log stops as shown in Figure 10.
2. Set the middle log in position with the locating pins behind the log stops. The middle log can be identified
by the burned area in its center. Figure 10
3. Set the front log into position with the locating pads on each side of the middle log blocks. Figure 11
4. Set the left and right twigs into their matching recesses. Figure 12
Figure 10 Place Back and Middle Logs
Figure 11 Place Front Log
LG577
LG576
Locator Tabs for Log
Placement
LG578
Figure 12 Place Left and Right Twigs
16
53D0501
Page 17
LIGHTING INSTRUCTIONS
WARNING: Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter
burner flame patterns.
WARNING: Do not use a blower insert, heat exchanger insert or other accessory not approved
for use with this appliance.
CAUTION: This appliance is hot while in operation. Do not touch. Keep children, clothing,
furniture, gasoline and other liquids having flammable vapors away.
Children and adults should be alerted to the hazard of high surface temperature and should
stay away to avoid burns or clothing ignition.
Young children should be carefully supervised when they are in the same room with the
appliance.
Do not place clothing or other flammable material on or near appliance.
Do not burn solid fuel in the fireplace in which this appliance is installed.
When this appliance is in operation, any glass doors on the fireplace in which the appliance is
installed, must be completely open to prevent overheating.
A mesh fireplace screen must be in place when the appliance is operating and unless other
provisions for combustion air are provided; the screen shall have an opening(s) for introduction
of combustion air.
NOTICE: This appliance will go through a curing process during its initial (first 2 to 3 hours)
operating period and will emit some smoke and odor. Oil and paint odors from a newly installed
fireplace or soot, creosote and ash odors from a previously used fireplace may also be noticeable
during this initial operating period. Be prepared for any smoke and odor by raising windows or
opening doors to provide additional ventilation during this initial operating period. If this appliance
is installed in a solid-fuel burning fireplace as a unvented heater, it is recommended that the
fireplace damper be open during the appliance's initial operating period in order to reduce the
possibility of soot, creosote and ashes from a previously-used fireplace being circulated by air
flow or transported by water vapor into the space served by this appliance.
CAUTION: Candles, incense, oil lamps, etc. produce combustion by products including soot.
Vent-free appliances will not filter or clean soot produced by these types of products. In
addition, the smoke and/or aromatics (scents) may be reburnt in the vent-free appliance which
can produce odors. It is recommended to minimize the use of candles, incense, etc. while the
vent-free appliance is in operation.
18/24/30VL Unvented Gas Logs
53D0501
17
Page 18
18/24/30VL Unvented Gas Logs
OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
If you do not follow these instruction exactly,
a fire or explosion may result causing
property damage, personal injury or loss
of life.
WARNING
A. This appliance is equipped with a piezo ignition device which lights the pilot. If piezo is not working
properly see Match Lighting Instructions, Page 22.
B. BEFORE OPERATING 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 attempt 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 instruc-
tions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in, or turn the gas control knob. Never use tools. If the knob will not push
in or turn by hand, don't try to repair it. Call a qualified service technician. Force or attempted repair
may result in a fire or explosion.
D. Do not use this appliance if any part of it has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control
that has been under water.
Piezo Ignitor
Control Knob
Location of Piezo Ignitor, Control Knobs and Switch
on Millivolt, Thermostat and Manual Units
18
LG579
Switch
53D0501
Page 19
OPERATING INSTRUCTIONS
MANUAL CONTROL LIGHTING INSTRUCTIONS
1. STOP! Read the safety information.
2. Make sure the manual shutoff valve is fully open.
3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot.
4. Refer to Page 18 for the location of the piezo ignitor and control knob.
Push in gas control knob slightly and turn control knob clockwise
to the OFF position.
NOTE: Knob cannot be turned to OFF unless knob is pushed in slightly.
Do not force.
5. Wait (5) minutes to clear out any gas. Then smell for gas, including
near the floor. If you smell gas, STOP! Follow the instructions under
What To Do If You Smell Gas. If you do not smell gas, go to the next
step.
6. From OFF position, turn the gas control knob counterclockwise
to IGN position. Figure 12. Push in control knob for 5 seconds.
NOTE: If you are running the heater for the first time, it will be neces-
sary to press in the control knob for 30 seconds to allow air to bleed
out of the gas piping.
7. With the control knob pushed in, push in and release the piezo ignitor
button to light the ODS pilot. The pilot is located on the left side of
the heater, behind the middle log and on the back of the rear burner.
If piezo ignitor does not light the pilot, refer to Match Lighting Instruc-
tions, Page 22
8. Hold the control knob in for an additional 10 seconds to prevent the
ODS pilot from shutting off the gas while the thermocouple is warming
up.
9. Release the control knob:
– If the knob does not pop out when released, stop and immediately
call your service technician or gas supplier.
– If the ODS pilot will not stay lit after several tries, push and turn
the gas control knob clockwise to OFF and wait 15 seconds.
Repeat steps 6 through 9.
10.Push in control knob and turn counterclockwise
to the HIGH setting. At this location the control
knob will pop our when positioned correctly. The
knob can now be positioned at any position between
HIGH and LOW. Refer to Figures 13 and 14.
Wait 30 seconds before readjusting the heater
when the control knob has been turned down
to a lower setting.
WARNING
18/24/30VL Unvented Gas Logs
Rotate
Push
Figure 12 IGN Position
Rotate
Push
Figure 13 HIGH Position
Rotate
Figure 14 LOW Position
TO TURN OFF GAS TO HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2.
If applicable: Turn off all electric power to the heater.
53D0501
19
Page 20
18/24/30VL Unvented Gas Logs
OPERATING INSTRUCTIONS
Millivolt CONTROL LIGHTING INSTRUCTIONS
1. STOP! Read the safety information label.
2. Make sure the manual shutoff valve is fully open.
3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo
ignitor does not light the pilot, refer to Match Lighting Instructions, Page 22.
4. Turn gas control knob clockwise to the OFF position, set the thermostat to the lowest setting and turn
ON/OFF switch to OFF position.
5. Wait (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas,
STOP! Follow the instructions under What To Do If You Smell Gas, Page 18.
6. From OFF position, turn the gas control knob counterclockwise to IGN position. Push in control
knob for 5 seconds. NOTE: If you are running the heater for the first time, it may be necessary to
press in the control knob for 30 seconds or longer to allow air to bleed out of the gas piping.
7. With the control knob pushed in, push in and release the piezo ignitor button to light the pilot.
8. Continue pushing the control knob in for a further 10 seconds to prevent the flame detector from shutting off the gas while the probe is warming up. Release the control knob.
9. Turn gas control knob counterclockwise to the ON position.
10. After the pilot has been lit for one minute, the burners can be turned on. Turn the ON/OFF switch to
ON position.
11. If the gas logs will not operate, follow the instructions To Turn Off Gas To Heater below and call your
service technician or gas supplier.
ON/OFF
Switch
HI/LO Control
Ignitor Pilot
Control
LG583
LG584
Pilot
Piezo
Control Cover Plate for Millivolt
TO TURN OFF GAS TO HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2. If applicable: Turn ON/OFF switch to OFF position and/or set thermostat (if present) to lowest setting.
3. If applicable: Turn off all electric power to the heater.
20
53D0501
Page 21
OPERATING INSTRUCTIONS
18/24/30VL Unvented Gas Logs
THERMOSTAT CONTROL LIGHTING INSTRUCTIONS
1. STOP! Read the safety information.
2. Make sure the manual shutoff valve is fully open.
3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot.
4. Refer to Page 18 for the location of the piezo ignitor and control knob. Turn
control knob clockwise to the OFF position.
NOTE: Knob cannot be turned to OFF unless knob is pushed in slightly. Do
not force.
5. Wait (5) minutes to clear out any gas. Then smell for gas, including near
the floor. If you smell gas, STOP! Follow the instructions under What To
Do If You Smell Gas. If you do not smell gas, go to the next step.
6. Turn the gas control knob counterclockwise to IGN position. Figure
39. Push in control knob for 5 seconds.
7. With the control knob pushed in and held, push and release the piezo ignitor button to light the ODS
pilot. The pilot is located on the left side of the heater, behind the front log and in front of the main
burner. If piezo ignitor does not light the pilot, refer to Match Lighting Instructions, Page 22.
8. Hold the control knob in for an additional 10 seconds to prevent the ODS pilot from shutting off the
gas while the thermocouple is warming up.
9. Release the control knob:
– If the knob does not pop out when released, stop and immediately call your service technician or
gas supplier.
– If the ODS pilot will not stay lit after several tries, push and turn the gas control knob clockwise
to OFF and wait 15 seconds. Repeat steps 6 through 9.
10.Turn control knob to any position between LOW and HIGH. The knob position controls the thermostat
temperature.
11. The heater is now in proper operation. The following procedure should be used to achieve thermostatic control of the desired room temperature:
a. Operate unit at higher setting until desired room temperature is achieved.
b. At the desired temperature, slowly turn the knob clockwise and stop rotating when flame disap-
pears.
c. Thermostat is now set to maintain the current room temperature.
d. As the room temperature decreases, the thermostat valve will open to ignite the front and rear
burner.
e. When the temperature reaches its set point (knob position), the thermostat valve will again shut
off the front and rear burner.
f. This is the normal cycle of the heater.
Wait 30 seconds before readjusting the heater
when the control knob has been turned down
to a lower setting.
Rotation of Control Knob
WARNING
Rotation
TO TURN OFF GAS TO HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2.
If applicable: Turn off all electric power to the heater.
53D0501
21
Page 22
18/24/30VL Unvented Gas Logs
SAFETY CHECKLIST
MATCH LIGHTING INSTRUCTIONS
1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.).
2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo
button, light a match and hold the flame to the end of the pilot and ignite the pilot.
3. After control knob has been released and pilot stays lit, reinstall any items that were removed for pilot
access.
4. Call a qualified service technician for repair or replacement of the piezo ignitor.
Continued safe operation of this appliance requires, but
is not limited to, these "Do's" and "Don'ts":
DO'S
1. Do connect the appliance only tot he type of gas for
which it is equipped to burn.
2. Do install the appliance and all gas piping according
to local codes or, in the absence of local codes, with
the National Fuel Gas Code ANSI Z223.1/NFPA 54.
3. Do take the necessary precautions during any pressure
testing of the appliance's gas supply piping system.
4. Do install the appliance only in a fireplace suitable for
the burning of solid fuel (wood or coal) or in a VF32-R,
VF36-R, VF42-R, EVB36, VF42 and VF3D ventless
firebox enclosure.
5. Do use only joint compound (pipe dope) on threaded
joints of gas piping that is resistant to the action of
liquefied petroleum gas.
6. Do include a manual shutoff valve, union and 1/8 inch
N.P.T. plugged pressure tap ahead of the controls.
7. Do use only ground joint unions in gas piping.
8. Do use only a soap and water solution or liquid gas
leak solution when checking for leaks.
9. Do use a mesh firescreen any time the appliance is in
operation.
10. Do keep the area around the appliance clear and
free from combustible materials, gasoline and any
flammable or explosive material.
11. Do follow the lighting and operation procedures
provided.
12. Do periodically inspect the flames of the pilot burner
and main burners as described by this manual.
13. Do clean the appliance and fireplace as described by
this manual.
14. Do keep the logs properly placed.
15. Do provide ample fresh air when operating the
appliance.
16. Do keep fireplace glass doors completely open any
time the appliance is in operation.
DON'TS
1. Don't modify or alter this appliance in any way.
2. Don't connect this appliance to any type of gas for
which it is not equipped to burn.
3. Don't install this appliance in any area where gasoline
or any flammable or explosive material may be used
or stored.
4. Don't use candles, matches or any source of ignition
when checking for leaks.
5. Don't operate appliance without a mesh firescreen in
place.
6. Don't install any accessories not provided by MHSC.
7. Don't install this appliance in a fireplace whose flue is
serving a separate solid-fuel burning appliance.
8. Don't burn solid fuels in a fireplace where this appliance
is installed.
9. Don't block or restrict any grilles of a factory-built
fireplace in which this appliance is installed.
DO NOT TAMPER WITH
PILOT LIGHT SAFETY
SYSTEM!
If appliance shuts off, do not relight until you
provide fresh air.
If appliance continues to shut off, have it serviced.
Keep burners and control compartment clean.
22
53D0501
Page 23
TROUBLESHOOTING
While the manufacturer has made every reasonable effort to insure this appliance operates
properly and satisfactorily, sometimes problems do arise. The following troubleshooting chart lists
several problems with their probable cause and solution. Any adjustments and/or replacements
must be made by a qualified person. Do not replace any component with a different type. Only
use components supplied by the manufacturer of this appliance.
18/24/30VL Unvented Gas Logs
Problem Cause Solution
Flame too large Pressure regulator at gas supply Reset, using manometer
set too high
Defective regulator on appliance Replace regulator
Appliance's burner orifice too large Replace with correct size
Noisy flame Noisy pilot Check inlet pressure
Burr in orifice Remove burr or replace
Yellow tip flame on Clogged burner ports Clean ports
front main burner Misaligned orifice Realign or replace burner
Clogged burner air intake Clean intakes
Floating flame Insufficient primary air Clean burner's air intake area
Delayed ignition of Pilot flame too small Clean pilot and pilot orifice
top main burner Top main burner ports clogged Clean ports
Low pressure Check pressure. Adjust pressure regulator
at gas supply.
Pilot burner won't Main gas OFF Open shutoff valve.
ignite, or pilot flame Faulty ignition system Check for spark at pilot when pusing ignitor.
goes out Check wire connections.
Dirty pilot burner Clean pilot burner.
Main burners won't Defective control valve Replace control valve.
turn ON
Main burner won't Defective control valve Replace control valve.
turn OFF
Bottom main burner Ports of carryover tube clogged Clean ports.
won't ignite or is slow Bottom main burner clogged Clean ports.
to ignite Low pressure Check pressure. Adjust pressure regulator
at gas supply.
Soot or dark residue Improper log placement Position logs according to respective "Log
on logs or fireplace Placement" instructions.
Clogged burner ports Clean ports.
Clogged burner air intake Clean intakes.
Draft or ceiling fan affecting Eliminate draft.
burner flames Turn off ceiling fan.
Incorrect gas type Check appliance rating label.
Call dealer.
53D0501
23
Page 24
18/24/30VL Unvented Gas Logs
MAINTENANCE
The appliance and fireplace should be inspected before
use and at least annually by a professional service person.
More frequent cleaning may be required due to excessive
lint from carpeting, bedding material, etc. It is imperative
that the control compartment, burners, and circulation air
passageways of the appliance be kept clean. Air flowing
through the fireplace and appliance will cause dust and
lint to collect on the appliance and interior surfaces of
the fireplace. If allowed to become excessive on the
appliance, the dust and lint could cause the appliance
to operate improperly and produce hazardous levels of
carbon monoxide. Airflow or water vapor could also carry
some of the dust and lint collected on the appliance and on
the interior surfaces of the fireplace into the space being
served by the appliance.
Visually inspect the appliance and fireplace interior
periodically and clean when necessary. Do not use cleaning
fluids. Be sure the appliance is off and cool before cleaning
it and the fireplace interior. When ready to clean, carefully
remove all logs from the appliance; then carefully vacuum
or brush away any dust, lint and possible soot which
may have accumulated anywhere on the appliance and
fireplace interior; pay particular attention to the air intake
areas of the appliance's pilot burner and main burners,
as well as the flame ports of the main burners. Vacuum
or brush away any dust, lint and possible soot which may
have accumulated on each of the logs. (Do not remove
the vermiculite particles glued to some of the logs; these
particles glow during operation of the appliance to produce
ember effect.)
After cleaning, replace the logs and resume normal
operation of the appliance according to the appliance's
lighting and operation instructions. After the cleaning
operation, the flames from the burners may have red and
orange streaks due to dust in the air. Those red and orange
streaks will disappear when the dust settles.
The pilot gas flow is not adjustable on this appliance. Proper
operation of the ODS (oxygen depletion sensor) pilot light
safety system is dependent upon the pilot gas flow rate and
any attempt to adjust this rate could cause the ODS system
to not operate correctly. It is very important that the pilot
be kept clean and free of dust, lint and soot. Should the
pilot flame show a yellow tip, clean the air intake of the pilot
burner (Figure 5). The pilot orifice spud is not replaceable
for this pilot. Should it become plugged, clean it only with
forced air. Never force a drill, wire or any object into the
orifice. Any increase in the orifice size will cause the ODS
system to not work as it is intended.
NOTICE: During times of construction or remodeling in the
vicinity of this appliance, take additional care to keep the air
intake areas of the appliance pilot burner and main burners
clean; excessive airborne dust created by the construction
or remodeling could clog these air intake areas resulting
in nuisance pilot outage and the production of carbon
monoxide and soot.
If this appliance is installed in a solid-fuel burning fireplace
with the flue damper open, a qualified service person should
examine and clean the venting system of the solid-fuel
burning fireplace at least once a year, preferably before first
use of the appliance each heating season. The examination
should include checking for deterioration, obstruction,
soot buildup or any condition that might affect venting. If
any factory-built part of the venting system is damaged or
deteriorated and required replacement, use only parts listed
for use with the remaining vent system components. The
use of unlisted or incompatible components could cause
a fire or carbon monoxide hazard.
Any service which requires disconnecting the gas supply
line must be performed by a qualified service person. If the
appliance is moved, even slightly, for any reason, the gas
supply lines must be rechecked for leaks immediately with
a soap and water solution or a liquid gas leak detector. If
leaks are found, turn the gas off at the shutoff valve until
the leak is corrected.
Do not attempt to substitute control system components of
any type other than as originally supplied with this appliance.
Substituted components will cause the appliance's Pilot
Light Safety System to not operate as it is intended.
Any safety screen or guard removed for servicing this
appliance must be replaced prior to operating this
appliance.
If the appliance is moved even slightly , during
cleaning or log replacement, check for gas
leaks. Repair any gas leak before resuming
normal operation of the appliance.
CAUTION
Do not attempt to substitute control system
components of any type other than as originally
supplied with this appliance.
Never force a drill, wire or any object into the
orifice of the pilot spud. Clean it only with
forced air.
CAUTION
24
IMPORTANT
53D0501
Page 25
REPLACEMENT PARTS
Refractory Log Set
Fiber Log Set
1
2
3
4
5
6
7
8
11
12c
18
12b
12a
16
15
13
19
20
21
23
22
28
27
26
24
25
14
18/24/30VL Unvented Gas Logs
53D0501
25
Page 26
18/24/30VL Unvented Gas Logs
All repair part orders should be placed through your local dealer. To ensure prompt and accurate service, please provide
the following information when placing a repair part order: model number of your appliance, part name, part number and
quantity of parts needed. Also note, your model may use either Five Piece Refractory Logs or Five Piece Fiber Logs.
These different log types shall not be mixed.
Ref. Description Qty. 18VL 24VL 30VL
1. Pilot Assembly (Nat.) Manual/T-stat 1 26D2529 26D2529 26D2529
1. Pilot Assembly (LP) Manual/T-stat 1 14D0476 14D0476 14D0476
1. Pilot Assembly (Nat.) MIllivolt 1 14D0473 14D0473 14D0473
1. Pilot Assembly (LP) Millivolt 1 14D0477 14D0477 14D0477
2. Rear Burner 1 53D0152 53D0154 53D0154
3. Front Burner 1 53D0151 53D0153 53D0153
4. Restrictor Plate (Nat. Only) 1 53D0033 53D0033 53D0033
5. Grate Assembly 1 53D0028 53D0028 53D0028
6. Piezo Ignitor 1 14D0503 14D0503 14D0503
7. Cable 12" 1 00K0632 00K0632 00K0632
8. Front Cover - Manual/T-stat 1 53D0017 53D0017 53D0017
8. Front Cover - Millivolt 1 53D0019 53D0019 53D0019
9.
10. Manual/Millivolt Knob 1 18D0603 18D0603 18D0603
11. Thermostat Knob 1 18D0602 18D0602 18D0602
12a. Manual Valve (Nat.) 1 30D0201 30D0201 30D0201
12a. Manual Valve (LP) 1 30D0202 30D0202 30D0202
12b. Millivolt Valve (Nat.) 1 14D0467 14D0467 14D0467
12b. Millivolt Valve (LP) 1 14D0468 14D0468 14D0468
12c. T-Stat Valve (Nat./LP) 1 11V0701 11V0701 11V0701
13. Base Wrap 1
14. Regulator Manual/T-Stat (Nat. 1 24D0305 24D0305 24D0305
14. Regulator Manual/T-Stat (LP) 1 24D0306 24D0306 24D0306
15. Injector, Rear (Nat.) 1 57D0680 27D0420 27D0420
15. Injector, Rear (LP) 1 53D0714 62D3005 62D3005
16. Injector, Front (Nat.) 1 57D0680 57D0612 57D0612
16. Injector, Front (LP) 1 53D0714 53D0714 53D0714
17. Nut Mounting - Manual Valve 1 00F0586 00F0586 00F0586
18. tubing 3/16" Alum. 1 49D0050 49D0050 49D0050
19. Right Twig (Refractory) 1 078326 072970 072970
20. Back Log (Refractory) 1 078322 072966 070971
21. Middle Log (Refractory) 1 078323 072967 072972
22. Twig Left (Refractory) 1 072969 072969 072969
23. Front Log (Refractory) 1 078324 072968 072973
24. Log, Top #1 1 53D1503 53D1508 53D1513
25. Log, Top #2 1 53D1504 53D1509 53D1514
26. Log, Back 1 53D1500 53D1505 53D1510
27. Log, Middle 1 53D1501 53D1506 53D1511
28. Log, Front 1 53D1502 53D1507 53D1512
REPLACEMENT PARTS LIST
26
53D0501
Page 27
Gas Logs Limited Warranty
18/24/30VL Unvented Gas Logs
What is covered and for How Long
MHSC will make available replacement parts for parts that are defective according to the
following terms.
Logs - A free replacement will be made available at our factory for any logs if they fail due to
deterioration within two (2) years of the verified purchase.
Steel Burner - A free replacement will be made available at our factory for the burner if it fails
to deterioration within 10 years of the verified purchase date.
All Other Parts - A free replacement will be made available at our factory for any part that is
defective within two (2) years of the verified purchase date.
What is Not Covered
– Removal and re-installation costs.
– Labor costs for replacement or repairs beyond our published warranty labor program.
– Transportation or shipping cost.
– The cost of a service call to diagnose trouble.
– Painted surfaces.
– Damage or defect caused by improper installation, accident, misuse, abuse or
alteration.
– Replacement of rusted burner combustion chamber resulting from improper storage.
Limitations and Exclusions
1. No one has authority to add to or vary this limited warranty, or to create for MHSC any other
obligation or liability in connection with this heater/decorative gas appliance.
2. Any implied warranty applicable to this heater/decorative gas appliance is limited in duration
to the same period of time as this written warranty. Some states do not allow limitations on
how long an implied warranty lasts, so the above limitations may not apply to you.
3. MHSC shall not be liable for incidental, consequential, special or contingent damages you
might suffer as a result of its breach of written warranty or anyimplied warranty. Some states
do not allow the exclusion or limitation of indicental or consequential damages, so the above
limitation or exclusion may not apply to you.
4. This warranty applies only to the original purchaser and may not be transferred.
5. This warranty applies only to a gas heater/decorative gas appliance used as a residential
appliance.
6. If you cannot verify the purchase date of the heater/decorative gas appliance, the warranty
period will begin on the date the heater/decorative gas appliance was manufactured.
7. replacement or repair parts are warranted for the remaining period of the original part
warranty. Warranty parts must be obtained through authorized dealers of the prodcut and/or
MHSC who will provide original factory replacement parts. Failure to use original factory
replacement parts voids this warranty.
This heater/decorative gas appliance must be installed by a qualified installer, operated and
maintained in accordance with all applicable codes and the instrucitons furnihsed with it.
IF WARRANTY SERVICE IS NEEDED...
1. Contact your supplier. Make sure you have your warranty, your sales receipt and the model/
serial number of your MHSC product.
2. DO NOT ATTEMPT TO DO ANY SERVICE WORK YOURSELF.
53D0501
27
Page 28
MHSC
149 Cleveland Drive • Paris, Kentucky 40361
www.mhsc.com
Loading...