Desa Vanguard VVSR18 Quick start guide

Save this manual for future reference.
For more information, visit www.desatech.com
FOR YOUR SAFETY
— Do not store or use gasoline or any other flammable
vapors or 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 quali-
fied installer, service agency or the gas supplier.
WARNING: If the information in these instructions is
not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
VENTED DECORATIVE NATURAL GAS LOGS
OWNER’S OPERATION AND INSTALLATION MANUAL
RGA 2-72
APPROVED
TESTED AND
LISTED BY
VANGUARD BURNER MODELS
VVSR18, VVSR24, VVDR18, VVDR24, AND VVDR30
FOR USE WITH LOG SET MODELS VSLR18, VSLR24, VDLCR18,
VDLCR24 (SHOWN) AND VDLCR30
FMI BURNER MODELS
FVSR18, FVSR24, FVDR18, FVDR24, AND FVDR30 FOR USE
WITH LOG SET MODELS FSLR18, FSLR24, FDLCR18, FDLCR24,
FDLCR30, FA18, FA24 AND FA30
COMFORT GLOW LOG SET AND BURNER MODELS
CVSR18, CVSR24, CPVSR18, CPVSR24, CVDR18, CVDR24,
CVDR30, LBFL18, LBFL24, LVDR18, LVDR24, LVDR30, BFLT18,
BFLT24, HVSR18, HVSR24, HCVDR18 AND HCVDR24

www.desatech.com 901265-01P2
WARNING: Improper installation, adjustment, altera-
tion, service or maintenance can cause injury or prop-
erty damage. Refer to this manual for correct installation
and operational procedures. For assistance or addi-
tional information consult a qualified installer, service
agency or the gas supplier.
WARNING: This is a gas-fired appliance. It uses air (oxy-
gen) from the room in which it is installed. Provisions for
adequate combustion and ventilation air must be provided.
Refer to the National Fuel Gas Codes, ANSI Z233.1/NFPA
54, Section 5.3, Air for Combustion and Ventilation.
WARNING: This appliance is for installation only in a solid-
fuel burning masonry or UL127 factory-built fireplace, con-
structed of noncombustible material, and connected to a
working flue. (See page 5 for minimum flue opening.)
This appliance may be installed in an aftermarket*, per-
manently located, manufactured (mobile) home, where
not prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer.
State of Massachusetts: The installation must be made
by a licensed plumber or gas fitter in the Commonwealth
of Massachusetts.
TABLE OF CONTENTS
Safety Information ............................................... 3
Local Codes ........................................................ 4
Unpacking ........................................................... 4
Product Identification ........................................... 4
Optional Product Features .................................. 5
Installation .......................................................... 5
Operating Appliance .......................................... 13
Cleaning and Maintenance ................................ 15
Service Hints ..................................................... 15
Technical Service .............................................. 15
Replacement Parts ............................................ 15
Troubleshooting ................................................. 16
Accessories ....................................................... 19
Illustrated Parts Breakdown and Parts List ....... 20
Warranty Information ...........................Back Cover

www.desatech.com
901265-01P 3
WARNING: This appliance
is equipped for natural gas. An
optional propane/LP conversion
kit must be installed for use with
propane/LP gas.
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns.
WARNING: Installed decora-
tive glass door enclosures must
be fully opened when operating
this gas appliance.
Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the appliance.
Appliance assembly becomes
very hot when in use. Keep chil-
dren and adults away from hot
surface to avoid burns or clothing
ignition. Appliance will remain hot
for a time after shutdown. Allow
surface to cool before touching.
Carefully supervise young chil-
dren when they are in the room
with appliance.
You must operate this appliance
with a fireplace screen in place.
Make sure fireplace screen is
closed before running appliance.
Keep the appliance area clear
and free from combustible ma-
terials, gasoline and other flam-
mable vapors and liquids.
SAFETY INFORMATION
WARNING: This product con-
tains and/or generates chemicals
known to the State of California
to cause cancer or birth defects
or other reproductive harm.
WARNING: Keep flue open
when operating unit.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate
or service this log set. Improper use
of this log set can cause 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 log set may not be working properly. Get
fresh air at once! Have log set serviced. Some
people are more affected by carbon monoxide than
others. These include pregnant women, people with
heart or lung disease or anemia, those under the
influence of alcohol and those at high altitudes.
Natural Gas: Natural gas is odorless. An odor-
making agent is added to the gas. The odor helps
you detect a gas leak. However, the odor added to
the gas can fade. Gas may be present even though
no odor exists.
Make certain you read and understand all warnings.
Keep this manual for reference. It is your guide to
safe and proper operation of this log set.
WARNING: Any change to
this log set or its controls can
be dangerous.
WARNING: Do not use a blow-
er insert, heat exchanger insert or
other accessory not approved for
use with this appliance.

www.desatech.com 901265-01P4
1. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do not use
any phone in your building
• immediately call your gas supplier from a
neighborʼs phone. Follow the gas supplierʼs
instructions
• if you cannot reach your gas supplier, call
the fire department
2. Never install the log set
• 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 log set
• in high traffic areas
• in windy or drafty areas
3. Before installing in a solid fuel burning fireplace,
the chimney flue and firebox must be cleaned of
soot, creosote, ashes and loose paint by a qualified
chimney cleaner. Creosote will ignite if highly
heated. Inspect chimney flue for damage. If dam-
aged, repair flue before operating appliance.
4. This log set is designed to be smokeless. If
logs ever appear to smoke, turn off appliance
and call a qualified service person. Note:
During initial operation, slight smoking could
occur due to log curing and the burning of
manufacturing residues. You may wish to add
more ventilation by opening a window.
5. To reduce the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 15.
6. The installation and provisions for combustion
and ventilation air must conform with the Na-
tional Fuel Gas Code, ANSI Z233.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation.
7. Do not run log set
• where flammable liquids or vapors are used
or stored
• under dusty conditions
8. Do not burn solid fuel in the fireplace after
installing the log set. Do not use this log set
to cook food or burn paper or other objects.
9. Do not use appliance if any part has been
exposed to or under water. Immediately call
a qualified service technician to inspect the
room appliance and to replace any part of
the control system (if using GA9050A or
GA9150A) and any gas control which has
been under water.
SAFETY INFORMATION
Continued
Figure 1 - Product Identification
(Dual Burner Shown)
Hearth Kit Model ___________________
Serial Number _____________________
Log Set Model _____________________
Grate
Burner
Pan
Burner Manifold Burner Inlet
Fitting
Burner Clamp
Grate Steps
PRODUCT IDENTIFICATION
10. To help prevent breakage, new logs must be
broken-in (see Curing Logs page 14).
11. Turn log set off and let cool before servicing,
installing, or repairing. Only a qualified ser-
vice person should install, service, or repair
log set.
12. Provide adequate clearances around air
openings.
LOCAL CODES
Install and use log set with care. Follow all local codes. In
the absence of local codes, use the latest edition of The
National Fuel Gas Code ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
UNPACKING
CAUTION: Do not remove the
data plates from the burner pan.
The data plates contain impor-
tant product information.
1. Remove logs, hearth kit, pan materials, and
hardware from carton.
2. Remove all protective packaging applied to
logs and base for shipment.
3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought the product.

www.desatech.com
901265-01P 5
OPTIONAL PRODUCT
FEATURES
ON/OFF SAFETY VALVE/PILOT KIT
AND PROPANE/LP CONVERSION
An optional valve/safety pilot kit with a piezo
ignitor is available for this appliance. This system
requires no matches, batteries, or other sources to
light. You must use this optional system for LP
conversion. See Accessories, page 19.
REMOTE CONTROL READY
(MILLIVOLT) SAFETY VALVE/
PILOT KIT
An optional millivolt valve/safety pilot kit with a
piezo ignitor is available for this appliance. This
system requires no matches, batteries, or other
sources to light. This system may be connected to
a wall switch or hand-held wireless remote control.
See Accessories, page 19.
REMOTE CONTROL ACCESSORIES
There is an optional hand-held ON/OFF remote
control that can be purchased separately for this log
set. You must use the millivolt valve/safety pilot
kit to use remote accessories with this appliance.
See Accessories, page 19.
A wall switch is also available for this appliance.
You must use the millivolt valve/safety pilot kit
to use the wall switch with this appliance. See
Accessories, page 19.
INSTALLATION
CAUTION: Do not remove
the data plates attached to the
burner pan. The data plates
contain important warranty and
safety information.
WARNING: Before installing in
a solid fuel burning fireplace, the
chimney flue and firebox must be
cleaned of soot, creosote, ashes
and loose paint by a qualified chim-
ney cleaner. Creosote will ignite
if highly heated. A dirty chimney
flue may create and distribute soot
within the house. Inspect chimney
flue for damage. If damaged, repair
flue before operating heater.
NOTICE: Installation, service, and
repair of this appliance must be
performed by a qualified installer,
service agency, company or
gas supplier experienced with
this type of gas appliance. Only
factory authorized components
listed in these instructions may
be used in accordance with the
manufacturer’s instructions and
all codes and requirements of
the authority having jurisdiction.
Any modifications to this kit, or
use of unauthorized components
or accessory items will void the
manufacturer’s warranty, and may
result in a hazardous condition.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed only
in a solid-fuel burning fireplace with a working flue
and constructed of noncombustible material.
The charts in Figure 2, page 6, indicate technical infor-
mation regarding the installation of your gas log set.
Please make sure that all of the specifications shown
are applicable before installation is attempted.
The fireplace must include a working flue and
venting system with the minimum openings shown
in the Figure 2, page 6.

www.desatech.com 901265-01P6
BURNER ORIFICE
LOG NATURAL PROPANE/LP
SIZE IN. NUM. IN. NUM.
VV/FV/CV/CPV/
HV/SR18
VV/FV/CV/HCV/
LV/DR18
.120 31 .073 49
VV/FV/CV/CPV/
HV/SR24
VV/FV/CV/
HCV/LV/DR24,
LBFL18, BFLT18
.129 30 .086 44
VV/FV/CV/LV/
DR30, LBFL24,
BFLT24
.1405 28 .089 43
Model
Burner
Description
Btu Input
Natural Gas
Btu Input
Propane/LP
Gas
Minimum
Vent
Opening
VVSR18
FVSR18
HVSR18
CPVSR18
CVSR18
18"
Single 50,000 40,000 8" dia.
VVSR24
FVSR24
HVSR24
CPVSR24
CVSR24
24"
Single 60,000 50,000 8" dia.
VVDR18
FVDR18
HCVDR18
LVDR18
CVDR18
18"
Dual 55,000 45,000 8" dia.
VVDR24
FVDR24
CVDR18
HCVDR24
LVDR24
CVDR24
24"
Dual 65,000 55,000 8" dia.
VVDR30
FVDR30
LVDR30
CVDR24
30"
Dual 70,000 60,000 8" dia.
LBFL18
BFLT18
18"
Triple 65,000 55,000 8" dia.
LBFL24
BFLT24
24"
Triple 70,000 60,000 8" dia.
*Add 6" if safety valve/pilot is used
**At depth indicated
FUEL INLET PRESSURE
SPECIFICATIONS (W.C.)
Min. Max.
NG 5.5" 10.5"
LP 11" 13"
Figure 2 - Technical Information Charts
MINIMUM FIREBOX SIZES
Models: VVSR18, FVSR18, HVSR18, CPVSR18,
CVSR18, CVDR18, VVDR18, FVDR18, HCVDR18,
LVDR18
Front Width* Back Width** Depth Height
28" 16" 14" 18"
Models: VVSR24, FVSR24, HVSR24, CPVSR24,
CVSR24, CVDR24, VVDR24, FVDR24, HCVDR24,
LVDR24
Front Width* Back Width** Depth Height
29 3/4" 17" 15 1/2" 18"
Models: VVDR30, FVDR30, LVDR30, CVDR30
Front Width* Back Width** Depth Height
36" 27" 18" 18"
Models: LBFL18, BFLT18
Front Width* Back Width** Depth Height
28" 16" 15 1/2" 18"
Models: LBFL24, BFLT24
Front Width* Back Width** Depth Height
30" 22" 15 1/2" 18"
INSTALLATION
Continued

www.desatech.com
901265-01P 7
CHECK GAS TYPE
Use only natural gas. If your gas supply is not
natural gas, you must install ON/OFF Safety
Valve/Pilot Kit (see Accessories, page 19). Call
dealer where you bought log set.
If the fireplace does not have a gas supply shutoff
valve, one must be installed.
VENTING SPECIFICATIONS FOR
INSTALLATION
The fireplace chimney flue and vent must be draft-
ing properly. To check the vent for proper drafting:
Light a tightly rolled newspaper on one end and
place it at the inside front edge of the fireplace.
Observe the smoke and be sure the vent is properly
drawing it up the chimney. If the smoke spills out
into the room, extinguish the flame and remove any
obstruction until proper venting is achieved.
The chimney flue must remain open a minimum
of 3" at all times during the operation of this
log set.
INSTALLING DAMPER CLAMP
Secure the damper stop clamp provided to the
leading edge of the damper as shown in Figure 3.
If for any reason this clamp doesn't work on your
fireplace, another suitable clamp or permanent
stop must be installed, or the damper blade must
be cut or removed.
INSTALLATION
Continued
Damper
Clamp
Damper
Clamp
Damper
Manufactured
Fireplace
Masonry Fireplace
Figure 3 - Attaching Damper Clamp
Damper
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser-
vice person must connect log
set to gas supply. Follow all
local codes.
Installation Items Needed
Before installing log set, make sure you have the
items listed below.
• piping (check local codes)
• sealant (resistant to Propane/LP gas)
• equipment shutoff valve
• test gauge connection
• adjustable (crescent) wrench or pliers
• sediment trap
• tee joint
• pipe wrench
CAUTION: Use only new,
black iron or steel pipe. Inter-
nally-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 log set. If
pipe is too small, undue loss of
volume will occur.
Installation must include a equipment shutoff
valve, union, and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up. NPT
tap must be upstream from log set (see Figure 4,
page 8).
IMPORTANT: Install equipment shutoff valve
in an accessible location. The equipment shutoff
valve is for turning on or shutting off the gas to
the appliance.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could result
in a clogged burner injector.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.

www.desatech.com 901265-01P8
We recommend that you install a sediment trap in
supply line as shown in Figure 4. Locate sediment
trap where it is within reach for cleaning. Install
in piping system between fuel supply and heater.
Locate sediment trap where trapped matter is not
likely to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going into log
set controls. If sediment trap is not installed or is
installed wrong, log set may not run properly.
INSTALLATION
Continued
Figure 4 - Gas Connection
* Purchase the optional CSA design-certified
equipment shutoff valve from your dealer. See
Accessories, page 19.
** Minimum inlet pressure for purpose of input
adjustment.
3" Minimum
Sediment Trap
From Gas
Meter (5"
W.C.** to
10.5" W.C.
Pressure)
CSA Design-
Certified Equipment
Shutoff Valve With
1/8" NPT Tap*
Approved Flexible Gas Hose
(if allowed by local codes)
Tee
Joint
Pipe
Nipple
Cap
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open flame to check for a leak.
Apply a noncorrosive leak detec-
tion fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect log set and its individual equip-
ment shutoff valve from gas supply piping
system.
2. Cap off open end of gas pipe where equipment
shutoff valve was connected.
3. Pressurize supply piping system by either us-
ing compressed air or opening main gas valve
located on or near gas meter.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection fluid to gas
joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect log set and equipment shutoff valve
to gas supply. Check reconnected fittings for
leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 5).
2. Pressurize supply piping system by either us-
ing compressed air or opening main gas valve
located on or near gas meter.
3. Check all joints from gas meter to equipment
shutoff valve (see Figure 5). Apply noncorro-
sive leak detection fluid to gas joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Figure 5 - Checking Gas Joints
Gas Meter
Equipment
Shutoff
Valve

www.desatech.com
901265-01P 9
HEARTH KIT ASSEMBLY AND
INSTALLATION
Kit Assembly - Single and Dual-Flame
Only
1. Determine which side the gas line will be coming
into the fireplace.
NOTICE: Triple-burner models
CBL18/24 or BFLT18/24 come
preassembled with gas inlet
on right side of burner pan.
DO NOT attempt to reposition
burner on triple-burner models.
If your fireplace supply is on
the left side, a longer 3/8" flex
line should be purchased and
routed behind burner pan and
away from flame area.
2. Using a hammer and screw driver, remove
knockout plug from the side of the pan that
corresponds to the gas line (see Figure 6).
3. Unscrew burner inlet fitting from burner
manifold.
4. Place burner manifold in pan with threaded
opening facing open knockout plug.
5. Using thread sealant (resistant to the action
of propane/LP gas) on larger end of fitting,
screw the burner inlet fitting through hole and
into burner manifold (see Figure 6). Tighten
using a wrench. If using propane/LP gas, see
Propane/LP Gas Conversion, page 11.
6. Using burner clamp, screw, and nut provided,
assemble clamp to pan (“U” style and triple
burners only). This will hold the burner mani-
fold in place.
7. If using optional GA9050A kit, go to Optional
GA9050A On/Off Safety Valve/Pilot Kit , page
10, for installation instructions. If using option-
al GA9150A kit, follow instructions included
with kit for installation and operation.
INSTALLATION
Continued
Burner Inlet
Fitting
Burner Inlet
Fitting
Screw
Front
Burner
Burner
Manifold
Nut Burner Clamp
Burner Pan
(Front)
Burner Manifold
Knockout
Plugs
Burner Pan
(Front)
Burner Pan
(Front)
Knockout
Plugs
Gas Connection
Must Be On
Right Side For
Triple Burner
Burner Inlet
Fitting
TRIPLE-BURNER
SINGLE-BURNER
DUAL-FLAME
Burner
Manifold
Figure 6 - Installing Burner

www.desatech.com 901265-01P10
Installation and Gas Connection
1. Place the burner pan assembly in the center
of the fireplace floor. Make sure the front of
pan faces forward.
2. Thread the gas supply fitting to the fireplace
gas supply pipe. Use thread sealant.
3. Install adapter fitting onto the burner inlet
fitting using thread sealant on male threads
of burner inlet fitting (see Figure 7). Adjust
to most convenient position.
4. Install the gas connector tube to the gas sup-
ply fitting. Carefully shape tube to attach to
adapter fitting. Be careful not to cause kinks
in tube.
INSTALLATION
Continued
Figure 7 - Connecting Gas to Appliance
Adapter
Fitting
Gas
Connector
Tube
Burner Pan
Assembly
(Facing Front
of Fireplace)
OPTIONAL GA9050A ON/OFF SAFETY
VALVE/PILOT KIT ASSEMBLY
For additional convenience and safety, or for
propane/LP conversion, an optional ON/OFF
safety valve/pilot kit is available. See Accessories,
page 19.
WARNING: You must use a
ON/OFF safety valve/pilot kit for
propane/LP conversion.
Natural Gas Installation
1. Thread the gas control valve onto the burner
inlet fitting (see Figure 8). Use thread sealant
on the male threads of the burner inlet fitting.
Hold the burner inlet fitting with a wrench to
prevent overtightening the connection to the
burner. Make sure the control rod is facing the
front (see Figure 8).
2. Attach the pilot gas line to the pilot outlet of
the gas control valve and tighten. Connect the
thermocouple to the rear of the gas control valve.
See Figure 9. Do not overtighten. If using
propane/LP gas, see Changing Pilot Orifice,
page 12.
3. Install the inlet fitting into the inlet opening
of the gas control valve (see Figure 10). Use
thread sealant on the male pipe threads.
4. Place the burner pan assembly in the center
of the fireplace floor. Make sure the front of
pan faces forward.
5. Thread the gas supply fitting to the fireplace
gas supply pipe. Adjust to most convenient
position.
Burner Inlet Fitting
Gas Control
Valve
Burner Pan
Assembly
Figure 8 - Installing Gas Control Valve
Control Rod
Figure 9 - Gas Control Valve with
Thermocouple and Pilot
Figure 10 - Installing Inlet Fitting and
Gas Connector Tube
Thermocouple
and Line
Pilot and
Line
Gas Control
Valve
Gas Control
Valve
Gas Inlet
Fitting
Gas
Connector
Tube
Inlet
Opening

www.desatech.com
901265-01P 11
6. Install the gas connector tube to the gas supply
fitting. Carefully shape tube to attach to adapter
fitting. Be careful not to cause kinks in tube.
7. Test for leaks following instructions under
Testing Burner for Leaks, page 12.
8. Retighten and adjust the location of the gas
control as necessary. The gas control should be
level, with the control rod to the front.
9. Install cover to burner pan using screws
provided.
10. Install thermocouple, pilot, and ignitor onto
valve cover as shown in Figure 11. Use the
provided screws.
11. Push the control rod extension onto the “D”
shaped control rod through the center hole in
the cover.
12. Install the position decal and control knob
making sure to align the marks with the cor-
rect stop positions of the gas control. Pilot
position will allow the knob to push in about
1/2". Align the decals in the pilot position.
INSTALLATION
Continued
Figure 11 - Installing Cover, Control
Knob, and Piezo Ignitor
Piezo Ignitor
Control Rod
Extension
Screw
Valve Cover
Control
Knob
Thermocouple
Ignitor
Pilot
PROPANE/LP GAS CONVERSION
To convert to propane/LP gas, the burner inlet
fitting and pilot orifice must be replaced. The
propane/LP burner inlet fitting is supplied with the
orifice installed for a 24" log set. If you have an 18"
or 30" set, you must change this orifice also. See
Figure 1, page 4 for product identification.
Burner Inlet Fitting
1. Remove the burner inlet fitting from the burner
pan assembly. DO NOT remove the orifice from
this fitting. The propane/LP burner inlet fitting
is included in the hardware kit (see Figure 12).
2. Be sure to use the correct orifice for your ap-
pliance. The hardware kit included with this
appliance contains two orifices with a cone-
like shape. If you have an 18" set, the orifice
for the burner inlet fitting is red; for a 30" set,
it is black. If you have a 24" log set, the orifice
is already installed inside the fitting.
3. For an 18" or 30" set, use a 10mm socket
or nut driver to remove the orifice from the
propane/LP burner inlet fitting. Choose the
correct orifice for your log set size and install
in place of the orifice you just removed.
4. Using thread sealant (resistant to the action
of propane/LP gas) on larger end of fitting,
screw the burner inlet fitting through hole and
into burner manifold (see Figure 13). Tighten
using a wrench.
5 . Follow steps 1 through 12 under Natural Gas
Installation, page 10.
Figure 12 - Burner Inlet Fittings with
Injectors
Figure 13 - Remove Burner Inlet Fitting
Burner Inlet
Fitting for
Natural Gas
NATURAL
GAS
FITTING
PROPANE/
LP GAS
FITTING
Injector
for Natural
Gas
Injector for
Propane/
LP Gas

www.desatech.com 901265-01P12
Changing Pilot Orifice
The pilot is provided with a natural gas orifice
installed. For propane/LP gas you must remove
it and replace it with an propane/LP orifice. The
accessory hardware kit contains an propane/LP
orifice with a red stripe for converting the pilot.
1. Gently loosen and remove the pilot line con-
nection from the bracket (see Figure 14).
2. Replace the injector (see Figure 14) with the
propane/LP pilot injector with the red stripe.
3. Replace and tighten the pilot line to the
bracket.
4. Continue with step 3 under Natural Gas Instal-
lation, page 10.
INSTALLATION
Continued
Figure 14 - Installing Propane/LP Pilot
Orifice
Pilot Injector
TESTING BURNER FOR LEAKS
1. Generously apply noncorrosive leak detec-
tion fluid to all connections.
WARNING: Never check for
gas leaks with open flame.
2. Light the burner with the shutoff valve no
more than half open and holding a match
slightly in front of the pan (see Lighting
Instructions, page 14).
3. Inspect all connections for bubbles, raw gas
odor, or flame from any area other than the
burner (leaks). If leaks are detected, shut off
the gas valve immediately. Tighten, or reas-
semble the loose connection(s) using pipe joint
compound until burner system is leak free.
4. When the burner is tested and leak free,
observe the individual tongues of flame on
the burner. Note: The burner design includes
more ports on the outside of the bar. Make
sure that all ports are clear and producing
flame evenly across the burner. If any ports
appear blocked, clear them by removing the
burner manifold and reaming the ports with a
modified paper clip or other suitable tool.
5. When finished testing, turn the gas shutoff
valve OFF to extinguish all flames.
ADDING PAN MATERIAL
1. Open the bag of ash bed material (vermiculite)
and spread it evenly across the burner pan
to the top. You may overflow the front and
sides of the pan to cover the entire pan and
connecting hardware. Do not cover GA9050A
or GA9150A valve.
2. Open the glowing embers and evenly cover
the ash bed material (vermiculite) in the
burner pan.
INSTALLING THE GRATE AND LOGS
1. Place the grate over the burner pan where the
two outer horizontal supports on the grate fit
into the two pan positioning notches in the
rear vertical edge of the pan.
2. Slide the two rear log grate steps over the
two outer horizontal supports on the grate as
shown in Figure 15.
3. Place the back log on the grate onto the grate
steps (see Figure 16, page 13).
4. Place the front log(s) on the grate and slide
forward against the front bars on the grate
(see Figure 16, page 13).
5. Place the smaller top logs onto the bottom logs
(see Figure 17, page 13). Leave as much open
space between logs as possible to minimize
flame impingement and sooting. Note: Logs
may chip if they are handled roughly or if hit
together while being placed.
Figure 15 - Installing Grate (Pan Material
Not Shown)
Grate Grate Steps

www.desatech.com
901265-01P 13
Figure 17 - Placement of Top Logs
Kingston Split
Oak Logs
INSTALLATION
Continued
Figure 16 - Installing Front and Back
Logs (Number and style may vary)
Hanover Round Oak Logs
Kingston Split Oak Logs
OPERATING APPLIANCE
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: Keep flue open
when operating unit.
WARNING: If you do not fol-
low these instructions exactly,
a fire or explosion may result
causing property damage, per-
sonal injury or loss of life.
BEFORE LIGHTING smell all around the
appliance area for gas. Be sure to smell next to
the floor because some gas is heavier than air
and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighborʼs phone. Follow the gas supplierʼs
instructions.
• If you cannot reach your gas supplier, call the
fire department.
Belmont Oak
Logs
INSTALLING DECORATIVE GRATE
The decorative grate enhancer accessory (see
Accessories, page 19) comes standard with the
Berkshire Oak (CVDR) models. Install enhancer
by placing it over the grate fingers on the front of
the grate after your logset has been installed.
Figure 18 - Placement of Grate Enhancer
Grate
Enhancer

www.desatech.com 901265-01P14
LIGHTING
INSTRUCTIONS
1. STOP! Read the safety information,
page 14.
2. Turn the gas shutoff valve to OFF.
3. Wait five (5) minutes to clear out any gas. If
you then smell gas STOP! Follow the safety
information, page 14. If you don't smell gas,
go on to the next step.
4. Light a match and lay it on top of the pan
material about 2" from the end of the sup-
ply side of the pan
5. Slowly turn the gas shutoff valve ON until
the burner ignites. If the burner doesnʼt
ignite within 10 seconds with the match
burning, turn the shutoff valve OFF and
repeat steps 1 through 4 again.
GAS SHUTOFF
VALVE OPERATION
Flame Adjustment
Adjust the flame ON/OFF by turning the gas
shutoff valve counterclockwise to open
or clockwise to close, as necessary.
Shutting Off Appliance
Turn gas shutoff valve clockwise to the
OFF position.
CURING
LOGS
During the 2-3 hour appliance break-in period,
you may detect an odor from the appliance
as the various paints and compounds used in
the manufacturing of this log set cure. This is
a normal and temporary situation that is not
cause for alarm. However, you may want to
provide extra ventilation to the room during
this time.
To ensure proper curing of the logs:
• Ignite a 2" flame and maintain it for 1
hour.
• Burn the logs in consecutive 1 hour periods
raising the flame an additional 2" to full
flame height for a total of three hours.
OPERATING APPLIANCE
Continued
OPERATING
INSTRUCTIONS
FOR GA9050A
Note: Operation instructions for GA9150A
Remote Ready Valve/Pilot Kit will be included
with the kit.
1. STOP! Read the safety information,
page 14.
2. Make sure equipment shutoff valve is fully
open.
3. Press in and turn control knob clockwise
to the OFF position.
4. Wait five (5) minutes to clear out any gas.
Then smell for gas around log set and near
floor. If you smell gas, STOP! Refer to the
National Fuel Gas Codes, ANSI Z233.1/
NFPA 54, Section 5.3, Air for Combustion
and Ventilation. If you donʼt smell gas, go
to the next step.
5. Turn control knob counterclockwise
to the PILOT position and press
in. Keep control knob pressed in for five
(5) seconds.
Note: You may be running this log set for
the first time after hooking up to gas sup-
ply. If so, the control knob may need to be
pressed in for 30 seconds. This will allow
air to bleed from the gas system.
• If control knob does not pop up when
released, contact a qualified service person
or gas supplier for repairs.
6. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the rear of
the front burner. If needed, keep pressing
ignitor button until pilot lights.
Note: If pilot does not stay lit, contact a
qualified service person or gas supplier for
repairs. Until repairs are made, light pilot
with match.
Ignitor
Control Knob Pilot
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
ON
ON
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
FROM "PILOT" POSITION
SLIGHT PUSH TO
TURN OFF
PULL PUSH
TO LIGHT
ON OFF
On Off
OFF
OFF
Figure 19 - Ignitor and Control Knob

www.desatech.com
901265-01P 15
OPERATING APPLIANCE
Continued
7. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob.
Note: If pilot goes out, repeat steps 3
through 7, page 14.
8. Turn control knob counterclockwise
to the ON position. Burner should
light. If burner does not light, call a quali-
fied service person.
SERVICE HINTS
When Gas Pressure is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If
so, contact your local propane/LP or natural gas
supplier.
TECHNICAL SERVICE
You may have further questions about instal-
lation, operation, or troubleshooting. If so,
contact DESAʼs Technical Service Department
at 1-866-672-6040. When calling please have
your model and serial numbers of your heater
ready.
You can also visit DESAʼs technical services web
site at www.desatech.com.
REPLACEMENT PARTS
Note: Use only original replacement parts. This
will protect your warranty coverage for parts
replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If
they canʼt supply original replacement part(s),
call DESAʼs Technical Service Department at
1-866-672-6040. When calling DESA, have
ready
• your name and address
• model and serial numbers of your log set
• how log set was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
Usually, we will ask you to return the part to the
factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If they
canʼt supply original replacement part(s), call
DESA at 1-866-672-6040 for referral information.
When calling DESA, have ready
• model number of your log set
• the replacement part number
Figure 20 - Thermocouple and Pilot
Pilot
Burner
Thermocouple
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Appliance
1. Turn control knob clockwise to the
PILOT position.
2. Press in and turn control clockwise
to the OFF position.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise to the
PILOT position.
CLEANING AND
MAINTENANCE
• Keep the area around the log set clean and clear
of debris.
• Occasionally, you may use a soft bristle brush
to clean logs.
• Once every year a qualified agency or certified
chimney sweep should examine and clean the
venting system of the fireplace.

www.desatech.com 901265-01P16
TROUBLESHOOTING
WARNING: Turn off log set and let cool before servicing. Only a
qualified service person should service and repair log set.
Note: All troubleshooting items are listed in order of operation.
POSSIBLE CAUSE
1. Poor fuel quality
2. Fireplace venting system not
drafting properly
3. Excessive flame impingement
or blockage
4. Improper fuel/air mixture
5. Excessive gas supply/pressure
1. Passage of air/gas across ir-
regular surfaces
1. Incorrect gas supply or
pressure
2. Blocked burner orifice or
burner manifold ports
3. Improper burner orifice size
1. Ignitor electrode not con-
nected to ignitor cable
2. Ignitor cable pinched or wet
3. Bad ground on piezo ignitor
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned
wrong
REMEDY
1. Contact local natural or pro-
pane/LP gas company
2. Adjust damper wide open
and/or have fireplace and vent-
ing professionally cleaned and
checked
3. Separate the logs to allow more
flame passage
4. Remove any foreign items from
the flame pattern and/or check
for proper orifice sizing
5. Preheat flue in very cold
weather
1. Relieve any tight bends or
kinks in gas supply line
1. Check for proper gas supply
pressure
2. Free burner orifice and mani-
fold ports of any burrs, paint,
or other blockage
3. Verify proper burner orifice
sizing (see Figure 2, page 6)
1. Reconnect ignitor cable
2. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
3. Scrape away paint on bracket
for better contact with ground
on piezo ignitor
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace electrode
7. Reposition electrode
OBSERVED PROBLEM
Log set is smoking/sooting
excessively
(Note: It is natural and unavoid-
able for vented gas log sets to
produce moderate levels of carbon
(soot) where flames contact the
logs. This is especially true with
propane/LP gas.)
Burner is excessively noisy
(Note: The movement and com-
bustion of gas will create low,
unavoidable levels of noise.)
Burner flame is too low or too
high
When ignitor button is pressed,
there is no spark at pilot (GA9050A
Only)

www.desatech.com
901265-01P 17
POSSIBLE CAUSE
1. Gas supply turned off or equip-
ment shutoff valve closed
2. Control knob not in PILOT
position
3. Control knob not pressed in
while in PILOT position
4. Air in gas lines when installed
5. Pilot adjustment screw
closed
6. Pilot is clogged
7. Low gas pressure
1. Con tr ol knob n ot full y
pressed in
2. Control knob not pressed in
long enough
3. Equipment shutoff valve not
fully open
4. Pilot flame not touching
thermocouple, which allows
thermocouple to cool, caus-
ing pilot flame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
1. Burner orifice clogged
2. Inlet gas pressure is too low
3. Thermocouple leads dis-
connected or improperly
connected
1. Pilot flame needs adjusting
2. Wrong pilot orifice
REMEDY
1. Turn on gas supply or open
equipment shutoff valve
2. Turn control knob to PILOT
position
3. Press in control knob while in
PILOT position
4. Continue holding down control
knob. Repeat igniting opera-
tion until air is removed
5. Adjust pilot flame for approxi-
mately 2" blue flame
6. Clean pilot (see Cleaning and
Maintenance, page 15) or
replace pilot assembly
7. Replace gas control
1. Press in control knob fully
2. After pilot lights, keep control
knob pressed in 30 seconds
3. Fully open equipment shutoff
valve
4. A) Contact local natural gas
company
B) Clean pilot (see Cleaning
and Maintenance, page 15) or
replace pilot assembly
5. Hand tighten until snug, then
tighten 1/4 turn more
6. Replace thermocouple
7. Replace control valve
1. Clean burner orifice
2. Contact local natural or pro-
pane/LP gas company
3. Reconnect leads
1. Adjust pilot flame for approxi-
mately 2" blue flame
2. Replace pilot orifice set
OBSERVED PROBLEM
When ignitor button is pressed,
there is spark at pilot but no igni-
tion (GA9050A Only)
Pilot lights but flame goes out
when control knob is released
(GA9050A Only)
Burner does not light after pilot
is lit (GA9050A Only)
Delayed ignition burner
(GA9050A Only)
TROUBLESHOOTING
Continued

www.desatech.com 901265-01P18
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. Fol-
low the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT: Operating log set where impurities in air exist may create odors. Cleaning supplies, paint,
paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These
fumes may mix with combustion air and create odors. These odors will disappear over time.
POSSIBLE CAUSE
1. Metal expanding while heating
or contracting while cooling
1. Log Set burning vapors from
paint, hair spray, glues, clean-
ers, chemicals, new carpet,
etc. (See IMPORTANT state-
ment above)
2. Gas leak. See Warning
statement at top of page
1. Gas leak. See Warning
statement at top of page
2. Control valve defective
1. Gas leak. See Warning state-
ment at top of page
OBSERVED PROBLEM
Log Set produces a clicking/tick-
ing noise just after burner is lit
or shut off
Log Set produces unwanted
odors
Gas odor even when control knob
is in OFF position
Gas odor during combustion
REMEDY
1. This is common with most log
sets. If noise is excessive, con-
tact qualified service person
1. Open flue to maximum. Stop
using odor causing products
while log set is running
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 8)
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 8)
2. Replace control valve
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 8)
TROUBLESHOOTING
Continued

LIMITED WARRANTY - VENTED GAS LOGS
DESA warrants this product to be free from defects on burner system for four (4) years and logs for a lifetime
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 log set 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 who
will provide original factory replacement parts. Failure to use original factory replacement parts voids this warranty.
The log set 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 log set 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 BURNER SYSTEM AND A LIFETIME ON LOGS FROM THE DATE OF FIRST PURCHASE;
AND DESAʼS LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND
DESA 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:
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com
901265-01
Rev. P
10/05
NOT A UPC
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.
901265 01