Vanguard UNVENTED (VENT-FREE) NATURAL GAS LOG HEATER Installation manual

®
UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATER
VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED
AS A VENTED DECORATIVE APPLIANCE
OWNER’S OPERATION AND INSTALLATION MANUAL
FLAME-MAX®
Golden Oak Log
Design
®
ON
HI
OFF
WARNING: 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.
LO
Patent Pending
O
PIL T
REMOTE
F
OF
18", 24", 30", and 36"
Remote Ready Model
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property
damage. Refer to this manual for correct installation and operational procedures. For assistance or additional
information consult a qualified installer,
service agency, or the gas supplier.
WARNING: This appliance is for installation only in a solid-fuel burning
masonry, UL127 factory-built fireplace,
or in an approved ventless firebox. It
is design certified for these installations in accordance with ANS Z21.11.2.
Exceptions: 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 logs.
WARNING: 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 Air for Combustion and Ventilation section on page 4 of this manual.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by
state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
SAFETY
INFORMATION
WARNING ICON
G 001
WARNINGS
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate, or service this heater. Improper use of this heater can cause
serious 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 poisoning resemble the flu, with headaches, dizziness,
or nausea. If you have these signs, the heater
may not be working properly. Get fresh air
at once! Have heater 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 heater.
WARNING: Any change to this
heater or its controls can be
dangerous.
1.
2.
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.
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 fire department
3. This heater shall not be installed in a
bedroom or bathroom, unless installed
as a vented appliance (see Installing
Damper Clamp Accessory for Vented
Operation, page 10).
4. Never install the heater
• in a recreational vehicle
• where curtains, furniture, clothing, or
other flammable objects are less than
42 inches from the front, top, or sides
of the heater
• in high traffic areas
• in windy or drafty areas
5. 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, operate heater
with flue damper closed.
6. If fireplace has glass doors, never operate this heater with glass doors closed.
If you operate heater with doors closed,
heat buildup inside fireplace will cause
glass to burst. Also if fireplace opening has vents at the bottom, you must
open the vents before operating heater.
7. You must operate this heater with a fireplace screen in place. Make sure fireplace
screen is closed before running heater.
8. This log heater is designed to be smokeless. If logs ever appear to smoke, turn
off heater and call a qualified service
person. Note: During initial operation,
slight smoking could occur due to log
curing and heater burning manufacturing residues.
9. To prevent the creation of soot, follow
the instructions in Cleaning and Maintenance, page 18.
10. Do not allow fans to blow directly into
the fireplace. Avoid any drafts that alter burner flame patterns. Ceiling fans
can create drafts that alter burner flame
patterns. Altered burner patterns can
cause sooting.
11. Before using furniture polish, wax, carpet cleaner, or similar products, turn
heater off. If heated, the vapors from
these products may create a white powder residue within burner box or on
adjacent walls or furniture.
2
12. Do not use a blower insert, heat exchanger insert or other accessory not
approved for use with this heater.
13. This heater needs fresh, outside air ventilation to run properly. This heater has
an oxygen depletion sensor (ODS) pilot light safety system. The ODS shuts
down the heater if not enough fresh air
is available. See Air for Combustion
and Ventilation, pages 4 through 6. If
heater keeps shutting off, see Troubleshooting, pages 19 through 21.
14. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
15. Do not use this heater to cook food or
burn paper or other objects.
16. Never place any objects on the heater.
17. Heater base assembly becomes very hot
when running heater. Keep children and
adults away from hot surface to avoid
burns or clothing ignition. Heater will
remain hot for a time after shutdown.
Allow surface to cool before touching.
18. Carefully supervise young children
when they are in the room with heater.
When using the hand-held remote accessory, keep selector switch in the
OFF position to prevent children from
turning on burners with remote.
19. Do not use heater if any part has been
exposed to or under water. Immediately
call a qualified service technician to inspect the room heater and to replace any
part of the control system and any gas
control which has been under water.
20. Do not operate heater if any log is broken. Do not operate heater if a log is
chipped (dime-sized or larger).
21. Turn heater off and let cool before servicing, installing, or repairing. Make sure
the selector switch is in the OFF position. Only a qualified service person
should install, service, or repair heater.
22. Make sure the selector switch is in the
OFF position when you are away from
your home for long periods of time.
23. This heater must not be connected to
any external electrical source.
24. Operating heater above elevations of
4,500 feet may cause pilot outage.
105273
OWNER’S MANUAL
PRODUCT
IDENTIFICATION
PRODUCT
FEATURES
Flame-Max®
Golden Oak Logs
OPERATION
One Piece
Log Set
Optional
Remote
Control
HI
TE
MA
MP
N
This heater is clean burning. It requires no
outside venting. There is no heat loss out a
vent or up a chimney. Heat is generated by
realistic, dancing yellow flames. This heater
is designed for vent-free operation with flue
damper closed. It has been tested and approved to ANS Z21.11.2 standard for
unvented heaters. State and local codes in
some areas prohibit the use of vent-free
heaters. This heater may also be operated as
a vented decorative product (ANS Z21.60)
by opening flue damper (non-thermostat
operation only).
LO
AU
TO
ON
OF
F
ST
AT
US
SAFETY PILOT
Piezo
Ignitor
Optional
Selector
Switch
Flame
Adjustment
Knob
Base Assembly
Control Knob
This heater has a pilot with an Oxygen
Depletion Sensor Shutoff System (ODS).
The ODS/pilot is a required feature for ventfree room heaters. The ODS/pilot shuts off
the heater if there is not enough fresh air.
PIEZO IGNITION SYSTEM
Figure 1 - Product Identification
LOCAL CODES
Install and use heater with care. Follow all
local codes. In the absence of local codes, use
the latest edition of The National Fuel Gas
Code ANS Z223.1, also known as NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note: Where listed vented decorative logs
are required, thermostat operation is not
permitted.
105273
UNPACKING
CAUTION: Do not remove the
metal Data Plates from the grate
assembly. The Data Plates contain
important product information.
1.
2.
3.
Remove logs and heater base assembly from carton. Note: Do not pick up
heater base assembly by the burner.
This could damage heater. Always
handle base assembly by grate.
Remove all protective packaging applied to logs and heater for shipment.
Check all items for any shipping damage. If damaged, promptly inform
dealer where you bought heater.
3
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
REMOTE CONTROL
ACCESSORIES
There are four optional remote controls that
can be purchased separately for this log
heater:
• wall switch
• wall thermostat
• hand held ON/OFF remote
• hand held thermostat remote
See Accessories, page 25.
The wall thermostat or hand-held thermostat may not be used where vented decorative listing is required.
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This heater shall
not be installed in a confined space
or unusually tight construction
unless provisions are provided
for adequate combustion and ventilation air. Read the following instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Today’s homes are built more energy efficient than ever. New materials, increased
insulation, and new construction methods
help reduce heat loss in homes. Home owners weather strip and caulk around windows
and doors to keep the cold air out and the
warm air in. During heating months, home
owners want their homes as airtight as possible.
While it is good to make your home energy
efficient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning
appliances need fresh air for proper combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and
fuel burning appliances draw air from the
house to operate. You must provide adequate fresh air for these appliances. This
will insure proper venting of vented fuelburning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National
Fuel Gas Code. NFPA 54/ANS Z223.1, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on pages 4 through 6 will
help you classify your space and provide
adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh air for
combustion and ventilation. However, in
buildings of unusually tight construction,
you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a. walls and ceilings exposed to the
outside atmosphere have a continuous water vapor retarder with
a rating of one perm (6x10-11 kg
per pa-sec-m2) 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
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.
If your home meets all of the three
criteria above, you must provide additional fresh air. See Ventilation Air
From Outdoors, page 6.
If your home does not meet all of the
three criteria above, proceed to Determining Fresh-Air Flow For Heater Location, page 5.
4
Confined and Unconfined Space
The National Fuel Gas Code (ANS Z223.1,
1992 Section 5.3) 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
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 (4.8 m3 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.
This heater shall not be installed in a confined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
* Adjoining rooms are communicating only
if there are doorless passageways or ventilation grills between them.
105273
OWNER’S MANUAL
AIR FOR
COMBUSTION AND
VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between
the rooms.
1. Determine the volume of the space (length x width x height).
Length x Width x Height = _____________ cu. ft. (volume of space)
Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_______________ (volume of space) ÷ 50 cu. ft. = (maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater
______________ Btu/Hr
Example:
Gas water heater*
______________ Btu/Hr
Gas water heater
40,000 Btu/Hr
Gas furnace
______________ Btu/Hr
Vent-free heater +
39,000 Btu/Hr
Vented gas heater
______________ Btu/Hr
Total
=
79,000 Btu/Hr
Gas fireplace logs
______________ Btu/Hr
Other gas appliances* + ______________ Btu/Hr
Total
= ______________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
____________Btu/Hr (maximum the space can support)
____________Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space can support)
79,000 Btu/Hr (actual amount of Btu/Hr used)
The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support.
You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no
additional fresh air ventilation.
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, ANS Z223.1, 1992, Section 5.3 or applicable local codes.
Continued
105273
5
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
AIR FOR
COMBUSTION AND
VENTILATION
12"
Continued
VENTILATION AIR
Ventilation Air From Inside
Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must provide two permanent openings: one within
12" of the ceiling and one within 12" of the
floor on the wall connecting the two spaces
(see options 1 and 2, Figure 2). You can also
remove door into adjoining room (see option 3, Figure 2). Follow the National Fuel
Gas Code NFPA 54/ANS Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
WARNING: Rework worksheet, adding the space of the
adjoining unconfined space. The
combined spaces must have
enough fresh air to supply all
appliances in both spaces.
Ventilation
Grills
Into Adjoining
Room,
Option 1
Ventilation Grills
Into Adjoining Room,
Option 2
Or
Remove
Door into
Adjoining
Room,
Option
3
12"
Figure 2 - Ventilation Air from Inside Building
Outlet
Air
Ventilated
Attic
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two permanent openings: one within 12" of the
ceiling and one within 12" of the floor.
Connect these items directly to the outdoors
or spaces open to the outdoors. These spaces
include attics and crawl spaces.
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Outlet
Air
To Attic
To
Crawl
Space
Inlet
Air
Inlet Air
Ventilated
Crawl Space
Figure 3 - Ventilation Air from Outdoors
6
105273
OWNER’S MANUAL
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat. Use
this heater along with your primary heating system. Do not install this heater as your primary
heat source. If you have a central
heating system, you may run
system’s circulating blower while
using log heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
NOTICE: A qualified service person must install heater. Follow
all local codes.
NOTICE: State or local codes may
only allow operation of this appliance in a vented configuration.
Check your state or local codes.
WARNING: 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. A dirty
chimney flue may create and distribute soot within the house. Inspect chimney flue for damage. If
damaged, operate heater with flue
damper closed.
WARNING: Never install the
heater
• in a bedroom or bathroom unless installed as a vented appliance (see page 10)
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 42 inches
from the front, top, or sides of
the heater
• in high traffic areas
• in windy or drafty areas
CAUTION: This heater creates warm air currents. These
currents move heat to wall surfaces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as tobacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls.
IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial,
installing heater in rooms without enough
ventilation air may cause mildew to form
from too much moisture. See Air for Combustion and Ventilation, pages 4 through 6.
CHECK GAS TYPE
Use only natural gas. If your gas supply is
not natural gas, do not install heater. Call
dealer where you bought heater for proper
type heater.
WARNING: Seal any fresh air
vents or ash clean-out doors located on floor or wall of fireplace.
If not, drafting may cause pilot
outage or sooting. Use a heatresistant sealant. Do not seal
chimney flue damper.
INSTALLATION AND
CLEARANCES (Vent-Free
Operation Only)
WARNING: Maintain the minimum clearances. If you can, provide greater clearances from
floor, ceiling, and adjoining wall.
MINIMUM FIREPLACE
CLEARANCE TO
COMBUSTIBLE MATERIALS
Log Size
Side Wall
Ceiling
18", 24",
30", and 36"
16"
42"
LOG SIZING REQUIREMENTS
Log
Minimum Firebox Size
Size Height Depth Front Rear*
Width Width
18"
17"
14"
24"
20"
24"
17"
14"
28"
21"
30"
17"
14"
34"
24"
36"
17"
14"
40"
30"
*Measured at 14" depth
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured fireplace, or certified vent free firebox.
Minimum Wall and Ceiling
Clearances (see Figure 4)
A. Clearances from the side of the fireplace opening to any combustible wall
should not be less than 16 inches.
B. Clearances from the top of the fireplace
opening to the ceiling should not be less
than 42 inches.
42"
16"
Left and
Right Sides
Figure 4 - Minimum Clearance to Wall and
Ceiling
Continued
105273
7
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
If Using Mantel
Continued
You must have noncombustible material(s)
above the fireplace opening. Noncombustible materials (such as slate, marble, tile,
etc.) must be at least 1/2 inch thick. With
sheet metal, you must have noncombustible
material behind it. Noncombustible material must extend at least 8 inches up (for all
models). If noncombustible material is less
than 12", you must install the fireplace hood
accessory (24", 30" and 36" models only).
NOTICE: Manual control heaters
may be used as a vented product.
If so, you must always run heater
with chimney flue damper open.
If running heater with damper
open, noncombustible material
above fireplace opening is not
needed. Go to Installing Damper
Clamp Accessory for Vented Operation, page 10.
Minimum Noncombustible
Material Clearances
If Not Using Mantel
IMPORTANT: If you cannot meet these
minimum clearances, you must operate
heater with chimney flue damper open. Go
to Installing Damper Clamp Accessory for
Vented Operation, page 10.
Noncombustible
Material Distance (A)
Requirements for
Safe Installation
12" or more
Noncombustible material OK.
Between 8" and 12"
24", 30", or 36" Models: Install fireplace hood accessory (GA6050, GA6052 or GA6053 see Accessories, page 25).
Note: If using a mantel, proceed to If Using
Mantel. If not using a mantel, follow the
information below.
You must have noncombustible material(s)
above the fireplace opening. Noncombustible materials (such as slate, marble, tile,
etc.) must be at least 1/2 inch thick. With
sheet metal, you must have noncombustible
material behind it. Noncombustible material
must extend at least 8" up (for all models). If
noncombustible material is less than 12", you
must install the fireplace hood accessory
(24", 30" and 36" models only). See Figure 5
at right for minimum clearances.
Even if noncombustible material is more
than 12", you may need the hood accessory
to deflect heat away from your mantel shelf.
See Figure 5 and Figures 6 and 7 on page 9
for minimum clearances.
18" Model: Noncombustible material OK.
Less than 8"
Noncombustible material must be extended to at
least 8". See Between 8" and 12", above. If you
cannot extend material, you must operate heater
with flue damper open.
Heat Resistant
Material
(A)
IMPORTANT: If you cannot meet these
minimum clearances, you must operate
heater with chimney flue damper open. Go
to Installing Damper Clamp Accessory for
Vented Operation, page 10.
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
8
105273
OWNER’S MANUAL
INSTALLATION
Continued
MANTEL CLEARANCES
In addition to meeting noncombustible material clearances, you must also meet required clearances between fireplace opening
and mantel shelf. If you do not meet the
clearances listed below, you will need a hood.
Determining Minimum Mantel
Clearance
Underside of
Mantel Shelf
8"
6"
2 1/2"
All minimum
distances are
in inches
Minimum NonCombustible
Material
(A)
If you meet minimum clearance between
mantel shelf and top of fireplace opening, a
hood is not required (see Figure 6).
12"
18"
20"
22"
24"
Log Set
24"/30"/36" Models
8"
8"
14"
163/4"
20"
18" Model
Top of Fireplace
Opening
Minimum NonCombustible
Material Height
Determining Minimum Mantel
Clearance When Using a Hood
If minimum clearances in Figure 6 are not
met, you must have a hood. When using a
hood there are still certain minimum mantel
clearances required. Follow minimum clearances shown in Figure 7 when using hood.
Mantel Shelf
10"
Distances to
Underside of
Mantel
Figure 6 - Minimum Mantel Clearances Without Using Hood
Mantel Shelf
12"
NOTICE: If your installation does
not meet the minimum clearances
shown, you must do one of the
following:
• operate the logs only with the
flue damper open
• raise the mantel to an acceptable height
• remove the mantel
8"
6"
2 1/2"
Minimum NonCombustible
Material
All minimum
distances are
in inches
8"
Min.
FLOOR CLEARANCES
A. If installing appliance on the floor level,
you must maintain the minimum distance of 14" to combustibles (see Figure 8).
B. If combustible materials are less than
14" to the fireplace, you must install
appliance at least 5" above the combustible flooring (see Figure 9).
Underside of
Mantel Shelf
10"
12"
Hood
Hood
(GA6050,GA6052)
GA6052,
(GA6050,
or GA6053)
15"
18"
20"
Log Sets
All Models
Top of Fireplace
Opening
Distances to
Underside of
Mantel
Figure 7 - Minimum Mantel Clearances When Using Hood
14"
14"
Min.
Min.
Combustible
Combustible
Material
Material
Hearth
Hearth
Combustible
Com
Material
Mat
5"
5"
Min.
Min.
Non-Combustible Mate
Noncombustible Material
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
105273
9
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
Continued
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
See chart below for minimum permanent
flue opening you must provide. Attach
damper clamp so the minimum permanent
flue opening will be maintained at all times.
Continued
INSTALLING DAMPER
CLAMP ACCESSORY FOR
VENTED OPERATION
Note: When used as a vented heater, appliance must be installed only in a solid-fuel
burning fireplace with a working flue and
constructed of non combustible material.
Chimney
Minimum Permanent
Height (ft.) Flue Opening (sq. ins.)
6' to 15'
39 sq. inches
15' to 30'
29 sq. inches
If your heater is a manually controlled model,
you may use this heater as a vented product.
There are three reasons for operating your
heater in the vented mode:
1. The fireplace does not meet the clearance to combustibles requirements for
vent-free operation
2. State or local codes do not permit ventfree operation
3. You prefer vented operation
Area of Various Standard
Round Flues
Diameter (ins.)
Area (sq. ins.)
5"
6"
7"
8"
20 sq. inches
29 sq. inches
39 sq. inches
51 sq. inches
If reasons number 1 or 2 above apply to you,
you must permanently open chimney flue
damper. You must install the damper clamp
accessory (to order, see Accessories, page
25). This will insure vented operation (see
Figure 10). The damper clamp will keep
damper open. Installation instructions are
included with clamp accessory.
Damper
Clamp
INSTALLING HEATER BASE
ASSEMBLY
CAUTION: Do not remove the
metal Data Plates attached to the
heater base assembly. The Data
Plates contain important warranty
information.
WARNING: You must secure
this heater to fireplace floor. If
not, heater will move when you
adjust controls. Moving heater
may cause a gas leak.
WARNING: If installing in a
sunken fireplace, special care is
needed. You must raise the fireplace floor to allow access to
heater control panel. This will insure adequate air flow and guard
against sooting. Raise fireplace
floor with noncombustible material. Make sure material is secure.
CAUTION: Do not pick up
heater base assembly by the
burner. This could damage
heater. Only handle base assembly by grates.
IMPORTANT: Make sure the heater burner
is level. If heater is not level, heater will not
work properly.
Damper
Damper
Clamp
Damper
Masonry Fireplace
Damper
Manufactured Fireplace
Figure 10 - Attaching Damper Clamp
10
105273
OWNER’S MANUAL
INSTALLATION
Continued
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose (not provided)
(if allowed by local codes)
• sealant (resistant to LP gas, not provided)
• electric drill with 3/16" drill bit (metal
or masonry as applicable)
• flathead screwdriver
1. Apply pipe joint sealant lightly to male
threads of the fitting to be threaded into
gas regulator. Connect approved flexible gas hose to gas regulator of heater
(see Figure 11).
IMPORTANT: Hold gas regulator with
wrench when connecting flexible gas
hose.
2. Locate two masonry screws in hardware package.
3. Place heater base in fireplace.
4. Place logs in their proper position on
heater base.
5. Center heater base and logs front-toback and side-to-side in fireplace.
6. Carefully remove logs without moving
heater base.
7. Mark screw locations through one hole
on each side of the mounting bracket
(see Figure 12). If installing in a brickbottom fireplace, mark screw locations
in mortar joint of bricks.
8. Remove heater base from fireplace.
9. Drill holes at marked locations using
3/16" drill bit.
10. Attach base assembly to fireplace floor
using two masonry screws (in hardware
package).
11. Connect to gas supply. See Connecting To Gas Supply, page 12.
12. Replace logs on heater base.
Fitting
Flexible Gas
Hose (if allowed
by local codes)
Figure 11 - Attaching Flexible Gas Hose to Heater
Masonry Screw
Mounting Flanges
Figure 12 - Attaching Base Assembly to Fireplace Floor
Continued
105273
11
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
WARNING: Never connect
heater to private (non-utility) gas
wells. This gas is commonly
known as wellhead gas.
Continued
CONNECTING TO GAS
SUPPLY
NOTICE: A qualified service person must connect heater to gas
supply. Follow all local codes.
Installation Items Needed
Before installing heater, make sure you have
the items listed below.
• piping (check local codes)
• sealant (resistant to LP gas)
• manual shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
* An A.G.A. design-certified manual shutoff
valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Purchase the optional A.G.A. design-certified
manual shutoff valve from your dealer. See
Accessories, page 25.
CAUTION: Use only new,
black iron or steel pipe. Internally-tinned copper tubing may
be used in certain areas. Check
your local codes. Use pipe of 1/2"
diameter or greater to allow
proper gas volume to heater. If
pipe is too small, undue loss of
pressure will occur.
Installation must include a manual shutoff
valve, union, and plugged 1/8" NPT tap.
Locate NPT tap within reach for test gauge
hook up. NPT tap must be upstream from
heater (see Figure 13).
CAUTION: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.
Install sediment trap in supply line as shown
in Figure 13. Locate sediment trap where it
is within reach for cleaning. Locate sediment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture
and contaminants. This keeps them from
going into heater controls. If sediment trap
is not installed or is installed wrong, heater
may not run properly.
CAUTION: Avoid damage to
control. Hold gas fitting with
wrench when connecting it to gas
piping and/or fittings.
Apply pipe joint sealant lightly to male
threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
A.G.A. Design-Certified
Manual Shutoff Valve With
1/8" NPT Tap*
Approved Flexible Gas
Hose (if allowed by
local codes)
From Gas Meter (5"
W.C.** to 10.5" W.C.
Pressure)
Gas Control
Tee Joint
Pipe Nipple
3" Minimum
Sediment
Trap
Cap
Figure 13 - Gas Connection
* Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 25.
** Minimum inlet pressure for purpose of input adjustment.
12
105273
OWNER’S MANUAL
INSTALLATION
Continued
CHECKING GAS
CONNECTIONS
WARNING: Test all gas piping and connections for leaks
after installing or servicing. Correct all leaks at once.
WARNING: Never use an
open flame to check for a leak.
Apply a mixture of liquid soap
and water to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
Test Pressures Equal To or Less Than
1/2 PSIG
1. Close manual shutoff valve (see Figure 14).
2. Pressurize supply piping system by either using compressed air or opening
main gas valve located on or near gas
meter.
3. Check all joints from gas meter to
manual shutoff valve (see Figure 15).
Apply mixture of liquid soap and water to gas joints. Bubbles forming show
a leak.
4. Correct all leaks at once.
Manual
Shutoff
Valve
Open
ON
POSITION
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
1. Disconnect heater and its individual
manual shutoff valve from gas supply
piping system. Pressures in excess of
1/2 psig will damage heater regulator.
2. Cap off open end of gas pipe where
manual shutoff valve was connected.
3. Pressurize supply piping system by either using compressed air or opening
main gas valve located on or near gas
meter.
4. Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and manual shutoff
valve to gas supply. Check reconnected
fittings for leaks.
Pressure Testing Heater Gas
Connections
1.
2.
3.
4.
5.
6.
7.
Open manual shutoff valve (see Figure 14).
Open main gas valve located on or near
gas meter.
Make sure control knob of heater is in
the OFF position.
Check all joints from manual shutoff
valve to control valve (see Figure 15).
Apply mixture of liquid soap and water to gas joints. Bubbles forming show
a leak.
Correct all leaks at once.
Light heater (see Operating Heater,
pages 15 through 17). Check all other
internal joints for leaks.
Turn off heater (see To Turn Off Gas to
Appliance, page 16).
OFF
POSITION
Closed
Figure 14 - Manual Shutoff Valve
Manual
Shutoff
Valve
Control Valve Location
Gas Meter
Figure 15 - Checking Gas Joints
Continued
105273
13
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
INSTALLATION
One Piece Log Set
Continued
INSTALLING LOGS
WARNING: Failure to position the parts in accordance with
these diagrams or failure to use
only parts specifically approved
with this heater may result in property damage or personal injury.
Middle
Section at
Bottom of
Log Set
CAUTION: After installation
and periodically thereafter, check
to ensure that no flame comes in
contact with any log. With the
heater set to High, check to see if
flames contact any log. If so, reposition logs according to the
log installation instructions in this
manual. Flames contacting logs
will create soot.
Burner
Chassis
It is very important to install the logs exactly
as instructed. Do not modify logs. Only use
logs supplied with heater.
1. Place one-piece log set on grate to fit
as illustrated in Figure 16. Make sure
middle section at bottom of log set is
seated into "U"-shaped cutout in center of chassis (see Figure 16). Log will
fit securely on chassis. Note: 36" model
has more features but fits on the chassis the same. IMPORTANT: Make sure
log does not cover any burner ports.
2. Place lava rock around base of heater.
"U"-shaped
Cutout in Chassis
Figure 16 - Installing Golden Oak One-Piece Log Set
One Piece
Log Set
Burner
ports
Figure 17 - Installing Golden Oak One-Piece Log Set (Top View)
14
105273
OWNER’S MANUAL
LIGHTING
INSTRUCTIONS
OPERATING
HEATER
FOR YOUR SAFETY
READ BEFORE
LIGHTING
WARNING:
• If fireplace has glass doors,
never operate this heater with
glass doors closed. If you operate heater with doors closed,
heat buildup inside fireplace
will cause glass to burst. Also
if fireplace opening has vents
at the bottom, you must open
the vents before operating
heater.
• You must operate this heater
with a fireplace screen in place.
Make sure fireplace screen is
closed before running heater.
WARNING: If you do not follow these instructions exactly, a
fire or explosion may result causing property damage, personal
injury or loss of life.
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all
around the appliance area for gas. Be
sure to smell next to the floor because
some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any appliance.
• Do not touch any electric switch;
do not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the 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 or gas
supplier. Force or attempted repair
may result in a fire or explosion.
D. 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.
WARNING: Burner will come
on automatically within one
minute when the selector switch
is in the ON position after the
pilot is lit.
4.
Press in and turn control knob clockto the OFF position.
wise
5.
Wait five (5) minutes to clear out any
gas. Then smell for gas, including
near the floor. If you smell gas,
STOP! Follow “B” in the safety information. If you don’t smell gas, go
to the next step.
6.
Press in and turn control knob counterclockwise
to the PILOT
position. Press in control knob for
five (5) seconds (see Figure 18).
Note: You may be running this
heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in
for 30 seconds or more. This will allow air to bleed from the gas system.
NOTICE: During initial operation
of new heater, burning logs will
give off a paper-burning smell.
Open damper or window to vent
smell. This will only last a few
hours.
Note: Home owners generally prefer to
operate their heater with the chimney
damper closed. This will put all the heat
into the room. However, there may be
times you will desire the full flames of
the High heat setting but will find the
heat output excessive. You can open the
chimney damper (if you have one) fully
or partially to release some of the heat.
7.
With control knob pressed in, press
and release ignitor button. This will
light pilot. The pilot is attached to the
front burner. If needed, keep pressing ignitor button until pilot lights.
Note: If pilot does not stay lit, contact a qualified service person or gas
supplier for repairs. Until repairs are
made, light pilot with match. To light
pilot with match, see Manual Lighting Procedure on page 16.
WARNING: Damper handle
will be hot if heater has been
running.
1.
2.
3.
STOP! Read the safety information,
column 1.
Make sure manual shutoff valve is
fully open.
Set switch to OFF position.
Flame Adjustment Knob
Control Knob
LOT
PI
LO
OFF
ON
IH
AUTO
OFF
ON
Ignitor Button Selector Switch in OFF Position
Figure 18 - Control Knob and Ignitor Button Location (Shown as Supplied,
No Control Options)
105273
15
Continued
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
OPERATING
HEATER
TO TURN OFF GAS
TO APPLIANCE
Continued
Shutting Off Heater
8.
1.
Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
• If control knob does not pop out
when released, contact a qualified
service person or gas supplier for
repairs.
Note: If pilot goes out, repeat steps
4 through 8.
9. Slightly push in and turn control
knob counterclockwise
to
the ON position.
10. Wait one minute and switch selector
switch to the ON position to light
burner. Note: AUTO is only functional
when using GWMT1 or GWMS2 optional accessories.
11. Set flame adjustment knob to any
level between HI and LO.
Turn control knob clockwise
to the OFF position.
2a. Set selector switch in the OFF position.
2b. If Using Optional Hand-Held Remote: Set selector switch in the OFF
position to keep from draining battery.
Shutting Off Burner Only (pilot
stays lit)
You may shut off the burner and keep the
pilot lit by doing one of the following:
1. Turn control knob clockwise
to the PILOT position.
2. Use remote control manual OFF button.
3. Set selector switch in the OFF position.
MANUAL LIGHTING
PROCEDURE
1.
CAUTION: Do not try to adjust
heating levels by using the
manual shutoff valve.
2.
3.
WARNING: Make sure the
selector switch is in the OFF position when you are away from
home for long periods of time.
Heater will come on automatically with selector switch in the
ON position.
Pilot Burner
Ignitor Electrode
Follow steps 1 through 6 under Lighting Instructions, page 15.
Depress control knob and light pilot
with match.
Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob. Now
follow steps 9 through 11.
OPTIONAL REMOTE
OPERATION
Note: All remote control accessories must
be purchased separately (see Accessories,
page 25). Follow instructions included
with the remote control.
Thermostat Control Operation
Figure 19 - Pilot
(Optional GHRCT Only) The thermostat control setting on the remote control
unit can be set to any comfort level between HI and LO. The burner will turn
on and off automatically to maintain the
comfort level you select. The ideal comfort setting will vary by household depending upon the amount of space to be
heated, the output of the central heating
system, etc.
16
For wall thermostat operation, follow instruction supplied with thermostat accessory GWMT1. For wall switch operation
follow instructions supplied with GWMS2.
NOTICE: You must light the pilot
before using the hand-held remote control unit. See Lighting
Instructions on page 15.
1.
After lighting, let pilot flame burn for
about one minute. Turn control knob
to ON position. Adjust flame adjustment knob anywhere between HI
and LO. Slide the selector switch to
the REMOTE position. Note: The
burner may light if hand-held remote
ON button was on when selector
switch was last turned off. You can
now turn the burner on and off with
the hand-held remote control unit.
IMPORTANT: Do not leave the selector switch in the REMOTE position when the pilot is not lit. This will
drain the battery.
IMPORTANT: Be sure to press the
ON/OFF buttons on the hand held
remote control unit for up to 3 seconds to assure proper operation.
GHRC Operation:
2a. Press the ON/OFF button to turn the
burner on and off. When turning
burner off, the pilot will remain lit.
GHRCT Operation:
2b. Select the MAN (manual) or AUTO
button on the hand-held remote control unit (see Figure 21, page 17).
• In manual mode, turn burner on
or off by pressing the ON or OFF
buttons on the hand-held remote
control unit.
• In auto mode, the room temperature is controlled by the thermostat
in the hand-held remote control
unit. To increase the room temperature, press the top arrow of the
TEMP button. To lower room the
temperature, press the bottom arrow of the TEMP button. At higher
settings the heater will run longer.
105273
OWNER’S MANUAL
OPERATING
HEATER
3.
Continued
IMPORTANT: This remote control
has been specially engineered to
take an air temperature sample every 5.5 minutes in the AUTO mode.
It will not respond immediately to
the temperature setting being
turned up or down.
IMPORTANT: The hand-held remote control unit must be near the
heater. Do not keep the hand-held
remote control unit too close the
heater. The thermostat on the
hand-held remote control unit will
heat up too quickly and turn the
heater off.
4.
Use the STATUS button on the handheld remote control unit to see the
operation mode being used and the
temperature setting selected. A red
light will come on beside the operation mode being used when the status button is pressed.
To turn the burner off when operating
in the manual mode, press the OFF
button. If operating in the auto mode,
press the MAN button, then press the
OFF button. The pilot will remain lit.
IMPORTANT: To turn the pilot off,
manually turn the control knob on the
heater to the OFF position.
Control Knob in
On Position
Flame Adjustment Knob
IH
OF
F
Check pilot flame pattern and burner flame
patterns often.
PILOT FLAME PATTERN
Figure 22 shows a correct pilot flame pattern. Figure 23 shows an incorrect pilot flame
pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the
thermocouple to cool. When the thermocouple cools, the heater will shut down.
If pilot flame pattern is incorrect, as shown
in Figure 23
• turn heater off (see To Turn Off Gas to
Appliance, page 16)
• see Troubleshooting, pages 19 through 21
Pilot Burner
Thermocouple
PILO
T
ON
OFF
REMOTE
INSPECTING
BURNERS
ON
LO
Figure 22 - Correct Pilot Flame Pattern
Pilot Burner
Selector Switch in Remote Position (Optional
Remote Control)
Thermocouple
Figure 20 - Setting the Selector Switch, Control Knob, and Flame
Adjustment Knob for Remote Operation
Figure 23 - Incorrect Pilot Flame Pattern
Shows Temperature Setting
Increases Room
Temperature
HI
TEMP
Allows Burner to be Turned
On and Off with the HandHeld Remote Unit.
The log heater will
automatically cycle between
pilot and the heat setting that
has been selected.
MAN
AUTO
LO
ON
Decreases Room
Temperature
Turns Burner On
and Off
OFF
STATUS
Shows Current
Operation Mode
Figure 21 - Thermostat Hand-Held Remote Control Unit Selections
105273
17
BURNER PRIMARY AIR HOLES
Air is drawn into the burner through the
holes in the fitting at the burner entrance.
These holes may become blocked with dust
or lint. Periodically inspect these holes for
any blockage and clean if needed. Blocked
air holes will create soot.
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may become blocked by debris or rust, with no flame
present. If so, turn off heater and let cool.
Either remove blockage or replace burner.
Blocked burner flame holes will create soot.
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
4.
5.
6.
CAUTION: You must keep
control areas, burner, and circulating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a qualified service person. Heater may
need more frequent cleaning due
to excessive lint from carpeting,
pet hair, bedding material, etc.
CLEANING BURNER
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet holes allow the proper
amount of air to mix with the gas. This
provides a clean burning flame. Keep these
holes clear of dust, dirt, and lint. Clean these
air inlet holes prior to each heating season.
Blocked air holes will create soot. We recommend that you clean the unit every 2,500
hours of operation or every three months.
We also recommend that you keep the burner
tube and pilot assembly clean and free of
dust and dirt. To clean these parts we recommend using compressed air no greater than
30 PSI. Your local computer store, hardware store, or home center may carry compressed air in a can. You can use a vacuum
cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot
assembly.
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 24).
3. Blow air through the ports/slots and
holes in the burner.
Check the injector holder located at the
end of the burner tube again. Remove
any large particles of dust, dirt, lint, or
pet hairs with a soft cloth or vacuum
cleaner nozzle.
Blow air into the primary air holes on
the injector holder.
In case any large clumps of dust have
now been pushed into the burner repeat
steps 3 and 4.
Clean the pilot assembly also. A yellow tip
on the pilot flame indicates dust and dirt in
the pilot assembly. There is a small pilot air
inlet hole about two inches from where the
pilot flame comes out of the pilot assembly
(see Figure 25). With the unit off, lightly
blow air through the air inlet hole. You may
blow through a drinking straw if compressed
air is not available.
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 14, to properly replace logs.
• Replace log(s) if broken or chipped
(dime-sized or larger).
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may become blocked by debris or rust, with no
flame present. If so, turn off heater and let
cool. Either remove blockage or replace
burner. Blocked burner flame holes will
create soot.
Injector Holder
(May Be Brass
or Aluminum
Depending on
Model)
Burner
Tube
Primary Air Inlet
Holes (Shape of
Holes May Vary
by Model)
Figure 24 - Injector Holder On Outlet
Burner Tube
Ports/Slots
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet Hole
Figure 25 - Pilot Inlet Air Hole
18
105273
OWNER’S MANUAL
TROUBLESHOOTING
WARNING: Turn off heater
and let cool before servicing. Only
a qualified service person should
service and repair heater.
Note: For additional help, visit DESA
International’s technical service web site
at www.desatech.com.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage ODS/
pilot unit.
Note: All troubleshooting items are listed in
order of operation.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
When ignitor button is pressed, there is no
spark at ODS/pilot
1. Ignitor electrode not connected to ignitor cable
2. Ignitor cable pinched or wet
1. Reconnect ignitor cable
3. Piezo ignitor nut is loose
4.
5.
6.
7.
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
Broken ignitor cable
Bad piezo ignitor
Ignitor electrode broken
Ignitor electrode positioned wrong
1. Gas supply turned off or manual shutoff
valve closed
2. Control knob not in PILOT position
3. Control knob not pressed in while in
PILOT position
4. Air in gas lines when installed
5. ODS/pilot is clogged
6. Gas regulator setting is not correct
ODS/pilot lights but flame goes out when
control knob is released
1. Control knob not fully pressed in
2. Control knob not pressed in long enough
3. Manual shutoff valve not fully open
4. Pilot flame not touching thermocouple,
which allows thermocouple to cool,
causing pilot flame to go out. This problem could be caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged OD S/pilot
5. Thermocouple connection loose at control valve
6. Thermocouple damaged
7. Control valve damaged
www.desatech.com
105273
19
2. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
3. Tighten nut holding piezo ignitor to base
panel of log set. Nut is located behind
base panel.
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace piezo ignitor
7. Replace piezo ignitor
1. Turn on gas supply or open manual
shutoff valve
2. Turn control knob to PILOT position
3. Press in control knob while in PILOT
position
4. Continue holding down control knob.
Repeat igniting operation until air is
removed
5. Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
6. Replace gas control
1. Press in control knob fully
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Fully open manual shut-off valve
4. A) Contact local natural gas company
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 18) or replace ODS/
pilot assembly
5. Hand tighten until snug, then tighten
1/4 turn more
6. Replace thermocouple
7. Replace control valve
Continued
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
Burner does not light after ODS/pilot is lit
1. Burner orifice clogged
1. Clean burner (see Cleaning and Maintenance, page 18) or replace burner orifice
2. Contact local natural gas company
3. Replace burner orifice
4. Reconnect leads (see Wiring Diagram,
page 24)
5. Replace battery in transmitter and receiver
2. Inlet gas pressure is too low
3. Burner orifice diameter is too small
4. Thermopile leads disconnected or improperly connected
5. Burners will not come on in remote position
Delayed ignition burner
1. Manifold pressure is too low
2. Burner orifice clogged
1. Contact local natural gas company
2. Clean burner (see Cleaning and Maintenance, page 18) or replace burner orifice
Burner backfiring during combustion
1. Burner orifice is clogged or damaged
1. Clean burner (see Cleaning and Maintenance, page 18) or replace burner orifice
2. Replace damaged burner
3. Replace gas control
2. Damaged burner
3. Gas regulator defective
Slight smoke or odor during initial operation
1. Not enough air
2. Gas regulator defective
3. Residues from manufacturing processes
and logs curing
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 18)
2. Replace gas control
3. Problem will stop after a few hours of
operation
Moisture/condensation noticed on windows
1. Not enough combustion/ventilation air
1. Refer to Air for Combustion and Ventilation requirements (page 4)
Heater produces a whistling noise when
burner is lit
1. Turning control knob to HI position
when burner is cold
2. Air in gas line
1. Turn control knob to LO position and
let warm up for a minute
2. Operate burner until air is removed from
line. Have gas line checked by local
natural gas company
3. Observe minimum installation clearances (see pages 7 through 9)
4. Clean burner (see Cleaning and Maintenance, page 18) or replace burner orifice
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
White powder residue forming within burner
box or on adjacent walls or furniture
1. When heated, vapors from furniture polish, wax, carpet cleaners, etc. turn into
white powder residue
1. Turn heater off when using furniture
polish, wax, carpet cleaners, or similar
products
Remote does not function
1. Battery is not installed. Battery power
is low
1. Replace 9-volt batteries in receiver and
remote control
www.desatech.com
20
105273
OWNER’S MANUAL
TROUBLESHOOTING
Continued
WARNING: If you smell gas
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in
your building.
• Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating heater where impurities in air exist may create odors.
Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new
carpet or textiles, etc., create fumes. These fumes may mix with combustion air
and create odors. These odors will disappear over time.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
Heater produces a clicking/ticking noise
just after burner is lit or shut off
1. Metal expanding while heating or contracting while cooling
1. This is common with most heaters. If
noise is excessive, contact qualified service person
Heater produces unwanted odors
1. Heater burning vapors from paint, hair
spray, glues, cleaners, chemicals, new
carpet, etc. (See IMPORTANT statement above)
2. Gas leak. See Warning statement at
top of page
1. Open window and ventilate room. Stop
using odor causing products while heater
is running
Heater shuts off in use (ODS operates)
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Open window and/or door for ventilation
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 18)
Gas odor even when control knob is in OFF
position
1. Gas leak. See Warning statement at
top of page
2. Control valve defective
1. Locate and correct all leaks (see Checking Gas Connections, page 13)
2. Replace control valve
Gas odor during combustion
1. Foreign matter between control valve
and burner
2. Gas leak. See Warning statement at
top of page
1. Take apart gas tubing and remove foreign matter
2. Locate and correct all leaks (see Checking Gas Connections, page 13)
www.desatech.com
105273
21
2. Locate and correct all leaks (see Checking Gas Connections, page 13)
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
ILLUSTRATED
PARTS
BREAKDOWN
FLAME-MAX® GOLDEN OAK
LOG MODELS VYD18NRA,
VYD24NRA, VYD30NRA, AND
VYD36NR
1
*Note: The Golden Oak Log (104254-01)
for the VYD36NR model differs slightly
from the log shown.
2
23
6
3
7
4
9
8
5
23
10
24
12
11
13
25
H
I
18
L
O
N
O
FF
O
14
P
ILOT
17
13
15
19
22
H
19
20
I
L
FF
O
N
O
O
26
21
22
P
ILO T
16
13
105273
OWNER’S MANUAL
PARTS LIST
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 24 of this manual.
VYD18NRA, VYD24NRA,
VYD30NRA, AND VYD36NR
KEY
NO.
PART NUMBER FOR
VYD18NRA
VYD24NRA
VYD30NRA
VYD36NR
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
105268-01
103779-01
098249-01
104422-01
098264-02
102843-01
099056-26
–
102980-01
099387-15
105268-02
103779-01
098249-01
103342-01
098264-02
102843-01
099056-16
102966-01
102772-01
099387-12
105268-03
103779-01
098249-01
103342-01
098264-02
102843-01
099056-16
102966-01
102772-01
099387-12
104254-01
103779-01
098249-01
103342-01
098264-02
102843-01
099056-16
102966-01
102772-01
099387-12
1
1
2
1
1
1
1
1
1
11
12
13
14
15
16
17
18
19
20
21
22
103781-01
103345-02
M11084-38
104384-01
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
103781-01
103345-01
M11084-38
102775-06CK
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
103781-01
103345-01
M11084-38
102775-08CK
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
103781-01
103345-01
M11084-38
102775-08CK
098271-07
102445-01
103587-02
104099-01
098304-01
103784-02
103784-01
M12461-26
23
100609-01
100609-01
100609-01
100609-01
24
25
26
099918-02
103284-02
099998-01
099918-02
103284-02
099998-01
099918-02
103284-02
099998-01
099918-02
103284-02
099998-01
Log, Golden Oak
ODS Pilot (NG)
ODS Nut
Burner Outlet Tube
Male Connector
Burner Clip
Burner Orifice Injector
Upper Bracket
Burner
Pilot Tube
(Valve to regulator)
Gas Control Valve
Lower Bracket
Screw, #8 x .38
Painted Base Assy
Ignitor Cable
Piezo Ignitor
Plate, Switch
Heat Shield
Screw
Flame Adjustment Knob
Off-Pilot-On Knob
Screw, Hex Slt Wsr
10-32 x .38
Pilot Tube
(Regulator to Pilot)
Pilot Regulator
Wiring Harness
Switch
Warning Plate
Lighting Instructions
Plate
Warning Plate Fastener
Caution Decal
Hardware Kit
Information Video
Lava Rock
1
QTY.
1
1
1
7
1
1
1
1
1
2
1
1
4
1
1
1
1
PARTS AVAILABLE — NOT SHOWN
105273
100563-01
103877-01
100563-01
103877-01
100563-01
103877-01
100563-01
103877-01
100565-01
100693-01
101137-02
104310-01
GA6060
100565-01
100639-01
101137-02
104310-08
GA6060
100565-01
100639-01
101137-02
104310-08
GA6060
100565-01
100639-01
101137-02
104310-08
GA6060
23
1
1
1
1
1
1
VANGUARD FLAME MAX®
UNVENTED NATURAL GAS LOG HEATER
WIRING DIAGRAM
REPLACEMENT
PARTS
Note: For proper operation of optional accessories, the wires from the switch to the
control must be connected exactly as shown.
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
AU
TO
OF
ON
F
Thermopile
Usually, we will ask you to return the defective part to the factory.
SPECIFICATIONS
Golden Oak
18" Remote
Ready
16,000/30,000
Natural Gas Only
Piezo
3.5" W.C.
Btu (Variable)
Type Gas
Ignition
Pressure Manifold
Inlet Gas Pressure (in. of water)
Maximum
10.5"
Minimum*
5"
Shipping Weight
28 lbs.
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Technical Service Department at
1-800-323-5190. When calling DESA International, have ready
• your name and address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane or natural gas)
• purchase date
Golden Oak
24", 30", and 36"
Remote Ready
20,000/39,000
Natural Gas Only
Piezo
3.5" W.C.
10.5"
5"
30 lbs. (24")/32 lbs. (30")
34 lbs. (36")
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information. When calling DESA International, have ready
• model number of your heater
• the replacement part number
* For input adjustment
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
TECHNICAL
SERVICE
You may have further questions about installation, operation, or troubleshooting.
When Gas Quality Is Bad
If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG
(1-800-337-2564).
• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit
You can also visit DESA International’s
technical services web site at
www.desatech.com.
You may feel your gas pressure is too low or
gas quality is bad. If so, contact your local
natural gas supplier.
24
105273
OWNER’S MANUAL
ACCESSORIES
HI
TE
MA
MP
N
Purchase these heater accessories from your
local dealer. If they can not supply these
accessories, call DESA International’s Parts
Department at 1-800-972-7879 for referral
information. You can also write to the address listed on the back page of this manual.
LO
AU
TO
ON
OF
F
WALL-MOUNT THERMOSTAT
SWITCH - GWMT1
(Not Shown)
STA
TU
S
For all models. The desired comfort setting
can be selected on the wall thermostat and
the log heater will automatically cycle from
pilot to the heat setting selected.
RECEIVER AND HAND-HELD
THERMOSTAT REMOTE
CONTROL KIT - GHRCT
WALL-MOUNT ON/OFF
SWITCH - GWMS2
For all models. Allows the gas log heater to
be operated in a manually or thermostatically controlled mode. You can turn the gas
log heater on and off without ever leaving
the comfort of your easy chair.
For all models. Allows the gas log heater to
be turned on and off with a wall switch.
(Not Shown)
DAMPER CLAMP - GA6080
(Not Shown)
Permanently opens chimney flue damper
for vented operation. Can be used only with
non-thermostat accessories.
MANUAL SHUTOFF VALVE GA5010
LAVA ROCK - GA6060
(Not Shown)
For all models. Manual shutoff valve with 1/8"
NPT tap. Fits 1/2" NPT pipe.
For all models. Order when additional rock
is desired. (3 lb. bag)
RECEIVER AND HANDHELD REMOTE CONTROL
KIT - GHRC
For all models. Allows the gas log heater to
be turned on and off by using a hand-held
remote control.
FIREPLACE HOOD
Black - GA6050
Brass - GA6052
Antique Brass - GA6053
For all models. Helps deflect heat away
from mantel or wall above fireplace. Fits
openings 28" to 48" wide.
105273
25
WARRANTY INFORMATION
KEEP THIS WARRANTY
Model
Serial No.
Date Purchased
Always specify model and serial numbers when communicating with the factory.
We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written
warranty. We make no other warranty, expressed or implied.
LIMITED WARRANTY
VENT-FREE NATURAL GAS LOG HEATERS
DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of first
purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.
To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater
to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s) MUST
be obtained through authorized dealers of this product and/or DESA International who will provide original factory replacement parts.
Failure to use original factory replacement parts voids this warranty. The heater MUST be installed by a qualified installer in accordance
with all local codes and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become
damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation. Travel, diagnostic cost,
labor, transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT;
THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE TO FOUR (4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE;
AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND
DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential
damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
INTERNATIONAL
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com
105273 01
NOT A UPC
105273-01
Rev. C
09/99