Design Dynamics VTD-18NV-JHB Quick start guide

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WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other ammable
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 re
department.
— Installation and service must be performed by a quali-
ed installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance
CONSUMER: Retain this manual for future reference.
VENTED DECORATIVE APPLIANCE
OWNER’S OPERATION AND INSTALLATION MANUAL
MODELS VTD-18NV-JHB, VTD-18PV-JHB, VTD-24NV-JHB,
VTD-24PV-JHB, VTD-30NV-JHB AND VTD-30PV-JHB
PFS
®
US

www.fmiproducts.com 114370-02H2
SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Product Identication........................................... 4
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 5
Optional Accessories........................................... 5
Installation ........................................................... 5
Operation........................................................... 10
Inspecting Burners............................................. 12
Cleaning and Maintenance................................ 12
Troubleshooting................................................. 13
Specications .................................................... 17
Wiring Diagrams................................................ 18
Service Hints ..................................................... 18
Technical Service............................................... 18
Replacement Parts............................................ 19
Accessories ....................................................... 19
Parts .................................................................. 20
Warranty ..............................................Back Cover
WARNING: Improper instal-
lation, 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
qualied installer, service agency
or the gas supplier.
This appliance may be installed
in an aftermarket,* permanently
located, manufactured (mobile)
home, where not prohibited by
local codes.
This appliance is only for use
with the type of gas indicated on
the rating plate. This appliance
is not convertible for use with
other gases.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer.
WARNING: This appliance
is for installation only in a
solid-fuel burning masonry or
UL127 factory-built replace,
constructed of noncombustible
material and connected to a
working ue. (See page 6 for
minimum ue opening.)
WARNING: This is a gas-red
heater. It uses air (oxygen) from
the room in which it is installed.
Provisions for adequate combus-
tion and ventilation air must be
provided. Refer to the National
Fuel Gas Codes, ANSI Z233.1/
NFPA 54, Air for Combustion and
Ventilation.
State of Massachusetts: The
installation must be made by
a licensed plumber or gas
tter in the Commonwealth of
Massachusetts.
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 ue open
when operating unit.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate 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.

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114370-02H 3
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
u, 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 oth-
ers. These include pregnant women, people
with heart or lung disease or anemia, those
under the inuence of alcohol and those at
high altitudes.
Natural and Propane/LP Gas: Natural and
propane/LP gas are 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.
WARNING: This appliance is
equipped for use with type of gas
indicated on rating plate.
WARNING: Do not allow fans
to blow directly into the replace.
Avoid any drafts that alter burner
ame patterns.
Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
SAFETY
Continued
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects on the heater.
Appliance base assembly be-
comes very hot when running.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Log set
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 log set. When using hand-
held remote accessory keep se-
lector switch in the OFF position
to prevent children from turning
on burners with remote.
You must operate this log set
with a replace screen in place.
Make sure replace screen is
closed before running log set.
Keep the log set area clear and
free from combustible materials,
gasoline and other ammable
vapors and liquids.
Children and adults should be
alerted to the hazard of high
temperature and should stay
away to avoid burns or clothing
ignition.
1. Do not place propane/LP supply tank(s)
inside any structure. Locate propane/
LP supply tank(s) outdoors (propane/LP
units only).

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2. 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 sup-
plier’s instructions
• if you cannot reach your gas supplier,
call the re department
3. Never install the log set
• in a recreational vehicle
• where curtains, furniture, clothing or other
ammable objects are less than 42" from
the front, top or sides of the log set.
• in high trafc areas
• in windy or drafty areas
4. Before installing in a solid fuel burning re-
place, the chimney ue and rebox must
be cleaned of soot, creosote, ashes and
loose paint by a qualied chimney cleaner.
Creosote will ignite if highly heated. Inspect
chimney ue for damage. If damaged,
repair ue before operating appliance.
5. Do not operate heater if any log is broken.
Do not operate heater if a log is chipped
(dime-sized or larger).
6. This log set is designed to be smokeless.
If logs ever appear to smoke, turn off appli-
ance and call a qualied service person.
Note: During initial operation, slight smok-
ing could occur due to log curing and
the burning of manufacturing residues.
You may wish to add more ventilation by
opening a window.
SAFETY
Continued
7. To reduce the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 13.
8. The installation and provisions for com-
bustion and ventilation air must conform
with the National Fuel Gas Codes, ANSI
Z233.1/NFPA 54, Air for Combustion and
Ventilation.
9. To prevent performance problems, do not
use propane/LP fuel tank of less than 100
lb. capacity (propane/LP units only).
10. Do not run log set
• where ammable liquids or vapors are
used or stored
• under dusty conditions
11. Do not burn solid fuel in the replace after
installing the log set. Do not use this log
set to cook food or burn paper or other
objects.
12. Do not use heater if any part has been ex-
posed to or under water. Immediately call
a qualied 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.
13. Turn log set off and let cool before servic-
ing, installing or repairing. Only a qualied
service person should install, service or
repair log set.
14. Provide adequate clearances around air
openings.
15. This vented gas log set may not be in-
stalled in a bedroom or bathroom in the
Commonwealth of Massachusetts.
Figure 1 - Product Identication
Log Set
Assembly
Grate
Chassis
Assembly
Ceramic
Burner
PRODUCT IDENTIFICATION
Control
Knob
Piezo
Ignitor
ON/OFF
Switch
WARNING: Failure to posi-
tion the parts in accordance
with these diagrams or failure
to use only parts specically
approved with this appliance
may result in property damage
or personal injury.

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114370-02H 5
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.
Battery march park
Quincy, MA 02269
UNPACKING
CAUTION: Do not remove the
data plates from the grate as-
sembly. The data plates contain
important warranty and safety
information.
1. Remove log set assembly from carton.
Note: Do not pick up assembly by logs.
This could damage unit. Always handle
assembly by grate.
2. Remove control cover oor media compo-
nents.
3. Remove all protective packaging applied to
log set for shipment.
4. Check heater for any shipping damage. If
heater is damaged call FMI PRODUCTS,
LLC at 1-866-328-4537 for replacement
parts before returning to dealer.
PRODUCT FEATURES
This unitized log set is tested and approved
to ANSI Z21.60 and CSA 2.26 as a vented
decorative appliance.
PIEZO IGNITOR
This unit has a piezo ignitor. This system re-
quires no matches, batteries or other sources
to light appliance.
OPTIONAL ACCESSORIES
• VTD-HLCN/P - Converts valve from ON/
OFF to HI/LO
• OFSM-RCN/P - Converts valve from ON/
OFF to HI/LO for use with hand-held ON/
OFF remote (included)
• OF-RC - Converts ON/OFF valve for use
with hand-held ON/OFF remote
See Accessories, page 19.
INSTALLATION
WARNING: Before installing
in a solid fuel burning replace,
the chimney ue and rebox
must be cleaned of soot, creo-
sote, ashes and loose paint by
a qualified chimney cleaner.
Creosote will ignite if highly
heated. A dirty chimney ue may
create and distribute soot within
the house. Inspect chimney ue
for damage. If damaged, repair
ue damper before operating
appliance.
WARNING: Make sure selec-
tor switch is in the OFF position
before installing appliance.
NOTICE: Installation, service and
repair of this appliance must be
performed by a qualied 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 manufac-
turer's instructions and all codes
and requirements of the authority
having jurisdiction. Any modica-
tions to or use of unauthorized
components or accessory items
will void the manufacturer’s war-
ranty and may result in a hazard-
ous condition.

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VENTING SPECIFICATIONS FOR
INSTALLATION
The replace chimney ue and vent must be
drafting 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 replace. 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 ame and remove any obstruc-
tion until proper venting is achieved.
The chimney ue must have a minimum free air
opening of 43" during operation of this log set.
A damper clamp is provided to x the damper
in position.
The minimum ue sizes shown in Figure 2 are
based on a 6' chimney height using round pipe.
Your minimum ue size will vary based on input
rate and chimney height. Refer to the National
Fuel Gas Code ANSI Z223.1/NFPA 54, Section
6.6, for details.
For Massachusetts Residents Only
Installation of this vented gas log set in the
Commonwealth of Massachusetts requires
the damper be permanently removed or
welded in the fully open position.
INSTALLING DAMPER CLAMP
Secure the damper stop clamp to the edge
of the damper as shown in Figure 4, page 7.
If for any reason this clamp doesn't work on
your replace, another suitable clamp or per-
manent stop must be installed, or the damper
blade must be cut or removed.
INSTALLATION
Continued
MODEL BURNER
BTU
INPUT
MIN. VENT
OPENING
VTD-18NV-JHB
VTD-18PV-JHB 18" Ramp 59,000 8" dia.
VTD-24NV-JHB
VTD-24PV-JHB 24" Ramp 69,000 8" dia.
VTD-30NV-JHB
VTD-30PV-JHB 30" Ramp 74,000 8" dia.
MINIMUM FIREBOX SIZES
MODEL
FRONT
WIDTH
BACK
WIDTH*
DEPTH
HEIGHT
VTD-18NV-JHB
VTD-18PV-JHB 28" 16" 14" 18"
VTD-24NV-JHB
VTD-24PV-JHB 29 3/4" 20" 15 1/2" 18"
VTD-30NV-JHB
VTD-30PV-JHB 36" 27" 18" 18"
*At depth indicated
BURNER ORIFICE
LOG
SIZE
NATURAL PROPANE/LP
INCHES NO. INCHES NO.
18" 0.1495 25 0.0935 42
24" 0.1570 22 0.0980 40
30" 0.1660 19 0.1015 38
SPECIFICATIONS (W.C.)
FUEL INLET PRESSURE MANIFOLD
PRESSURE
MIN. MAX.
NG 5" 10.5" 3.5
LP 11" 14" 10
Figure 3 - Specications
Figure 2 - Technical Information Charts
WARNING: Do not place lava
rocks and log scraps on burner.
CHECK GAS TYPE
Use the correct gas type (natural or propane/
LP) for your unit. If your gas supply is not cor-
rect, DO NOT install this into your replace.
See the dealer where you bought the appli-
ance for proper type.
WARNING: This appliance is
equipped for either natural gas
or propane/LP gas but not both.
Gas type is indicated on the rat-
ing plate. Field conversion is not
permitted.
INSTALLATION AND CLEARANCES
The charts in Figure 2 indicate technical
information regarding the installation of your
gas log set. Please make sure that all of the
specications shown are applicable before
installation is attempted.
FLUE OPENING SPECIFICATIONS
Note: This vented appliance must be installed
only in a solid-fuel burning replace construct-
ed of noncombustible material. The replace
must include a ue and venting system with
the minimum openings shown in Figure 3.

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114370-02H 7
Figure 4 - Attaching Damper Clamp
Manufactured
Fireplace
Masonry
Fireplace
Damper
Damper
Clamp
Damper
Damper
Clamp Damper
INSTALLING APPLIANCE
ASSEMBLY
WARNING: If installing in a
sunken replace, special care
is needed. You must raise the
replace oor to allow access
to appliance control panel. This
will insure adequate air ow
and guard against sooting and
controls being damaged. Raise
replace oor with noncombus-
tible material. Make sure material
is secure.
CAUTION: Do not pick up ap-
pliance assembly by logs. This
could damage unit. Only handle
assembly by grates.
IMPORTANT: Make sure the appliance is level.
If unit is not level, unit will not work properly.
Installation Items Needed• control
cover kit (provided with appliance)
• approved flexible gas hose and fittings
(provided with appliance) (if allowed by local
codes)
• sealant (resistant to propane/LP gas, not
provided)
1. Apply pipe joint sealant lightly to male
threads of gas tting (not provided). Con-
nect approved exible gas hose to inlet
side of gas control valve (see Figure 5).
Figure 5 - Attaching Flexible Gas Hose to
Gas Control Valve
Flexible Gas Hose
(If Allowed by Local Codes)
Gas
Control
Valve
INSTALLATION
Continued
2. Position appliance in replace.
3. Connect to gas supply. See Connecting
To Gas Supply, page 8.
CONNECTING TO GAS SUPPLY
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualied ser-
vice person must connect heater
to gas supply. Follow all local
codes.
CAUTION: Never connect
propane/LP replace directly to
the propane/LP supply. This unit
requires an external regulator
(not supplied). Install the exter-
nal regulator between the unit
and propane/LP supply
WARNING: Never connect
natural gas replace to private
(non-utility) gas wells. This gas
is commonly known as wellhead
gas.

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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 clogged heater valves.
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Figure 7 - Gas Connection
* Purchase the optional shutoff valve from
your dealer.
** Minimum inlet pressure for purpose of input
adjustment.
Approved
Flexible Gas
Hose (If allowed
by local codes)
Equipment Shutoff Valve
with 1/8" NPT Tap*
Propane/LP Gas
From External
Regulator (11"
W.C.** to 14" W.C.
Natural Gas
From Gas Meter
(5" W.C.** to 10.5"
W.C. Pressure)
3" Min.
Pipe Cap Tee
Nipple Joint
Sediment Trap
INSTALLATION
Continued
Figure 6 - External Regulator with Vent
Pointing Down
Propane/LP
Tank
External
Regulator with
Vent Pointing
Down
Installation Items Needed
Before installing log set, make sure you have
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved exible gas line with gas connec-
tor (if allowed by local codes) (provided)
* An equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge
connection. Purchase the optional equipment
shutoff valve from your dealer.
For propane/LP units, the installer must
supply an external regulator. The external
regulator will reduce incoming gas pressure.
You must reduce incoming gas pressure to
between 11" and 14" of water. If you do not
reduce incoming gas pressure, regulator dam-
age could occur. Install external regulator with
the vent pointing down as shown in Figure 6.
Pointing the vent down protects it from freez-
ing rain or sleet.
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 heater. If
pipe is too small, undue loss of
volume will occur.
Installation must include an 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 7).
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.
Check your building codes for any special
requirements for locating equipment shutoff
valve to replaces.

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114370-02H 9
INSTALLATION
Continued
We recommend that you install a sediment
trap in supply line as shown in Figure 7, page
8. Locate sediment trap where it is within
reach for cleaning. Install in piping system
between fuel supply and appliance. Locate
sediment trap where trapped matter is not
likely to freeze. A sediment trap traps mois-
ture 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
gas control. Hold gas control
with wrench when connecting it
to gas piping and/or ttings.
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 ame to check for a leak.
Apply a noncorrosive leak detec-
tion uid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CAUTION: Make sure exter-
nal regulator has been installed
between propane/LP supply
and appliance. See guidelines
under Connecting to Gas Sup-
ply, page 7.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its individual
equipment shutoff valve from gas supply
piping system. Pressure in excess of 1/2
psig will damage appliance regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas, or using compressed air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection uid 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
ttings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Fig-
ure 8).
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 equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figure 9 or
Figure 10, page 10). Apply noncorrosive
leak detection uid to all joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Figure 8 - Equipment Shutoff Valve
Equipment
Shutoff
Valve
Open
Closed
Figure 9 - Checking Gas Joints
(Propane/LP Gas Only)
Propane/LP
Tank
Equipment
Shutoff Valve

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INSTALLATION
Continued
Figure 10 - Checking Gas Joints
(Natural Gas Only)
Gas Meter
Equipment
Shutoff Valve
Control Valve
Location
OPERATION
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: Keep ue open
when operating unit.
WARNING: If you do not fol-
low these instructions exactly,
a re or explosion may result
causing property damage, per-
sonal injury or loss of life.
A. This appliance has a pilot which must
be lighted by hand. When lighting the pi-
lot, follow these instructions exactly.
B. BEFORE LIGHTING smell all around
the appliance area for gas. Be sure to
smell next to the oor because some
gas is heavier than air and will settle
on the oor.
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 re department.
PRESSURE TESTING APPLIANCE GAS
CONNECTIONS
1. Open equipment shutoff valve (see Fig-
ure 8, page 9).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
3. Make sure control knob of appliance is in
the OFF position.
4. Check all joints from equipment shutoff
valve to gas control (see Figure 9, page
9 or Figure 10). Apply noncorrosive leak
detection uid to all joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Light appliance (see Operation,page 11).
Check all other internal joints for leaks.
7. Turn off appliance (see To Turn Off Gas
to Appliance, page 12).
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 quali-
ed service technician or gas supplier.
Force or attempted repair may result in
a re or explosion.
D. Do not use this appliance if any part
has been under water. Immediately call
a qualied service technician to inspect
the appliance and to replace any part of
the control system and any gas control
which has been under water.
LIGHTING
INSTRUCTIONS
NOTICE: During initial opera-
tion of new appliance, metallic
components may emit an odor as
paint and assembly compounds
are heated and cure. Be sure
to provide adequate fresh air if
odors are detected.
WARNING: Damper handle
will be hot if appliance has been
running.

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114370-02H 11
CAUTION: A mild gas ash
may occur within 10 seconds of
normal shutdown of this appli-
ance. Remain clear of the hearth
area for the entire shutdown pro-
cess to avoid possible injury.
1. STOP! Read the safety information on
page 10.
2. Make sure equipment shutoff valve is fully
open.
3. Set selector switch in the OFF position.
4. Press in and turn control knob clock-
wise to the OFF position (see
Figure 11).
WARNING: Burners will
come on automatically within
one minute when the selector
switch is in the ON position after
the pilot is lit.
5. Wait ve (5) minutes to clear out any gas.
Then smell for gas, including near the
oor. If you smell gas, STOP! Follow “B”
in the safety information, page 10. If you
don’t smell gas, go to the next step.
6. Press in and turn control knob counter-
clockwise to the PILOT position.
Press in control knob for ve (5) seconds
(see Figure 11).
Note: You may be running this appliance for
the rst time after hooking up to gas sup-
ply. 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.
Figure 11 - Control Knob and Ignitor Button
Control Knob Ignitor
ON/OFF
Switch
OPERATION
Continued
7. With control knob pressed in, press and
release ignitor button. This will light pilot.
If needed, keep pressing ignitor button
until pilot lights.
Note: If pilot does not stay lit, contact a
qualied service person or gas supplier for
repairs. Until repairs are made, light pilot
with match. To light pilot with match, see
Manual Lighting Procedure, page 12.
8. Keep control knob pressed in for 30 sec-
onds 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 coun-
terclockwise to the ON position.
10. Wait one minute and switch selector
switch to the ON position to light burners.
Note: AUTO is not functional.
11. Set ame adjustment knob to any level
between HI and LO. Optional conversion
kit only.
Note: Unit is shipped from the factory with
preset ame and manual on/off switch
only (see Accessories on page 19 for
complete list of accessories and conver-
sion kits).
12. To leave pilot lit and shut off burners only:
turn control knob clockwise to the
PILOT position, or use remote control
manual OFF button, or set selector switch
in the OFF position.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
WARNING: Make sure the
selector switch is in the OFF
position when you are away
from home for long periods of
time. Appliance will come on au-
tomatically with selector switch
in the ON position.

www.fmiproducts.com 114370-02H12
OPERATION
Continued
TO TURN OFF GAS
TO APPLIANCE
1. 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
prevent draining battery.
3. Close equipment shutoff valve (see Figure
8, page 9).
Figure 12 - Correct Burner Flame Pattern
Figure 13 - Incorrect Burner Flame
Pattern
Yellow
Tipping
INSPECTING BURNERS
BURNER FLAME PATTERN
Check ame pattern often. Figure 12 shows
correct burner ame pattern.
NOTICE: Do not mistake orange
ames with yellow tipping. Dirt
or other ne particles are burned
by appliance, causing brief
patches of orange ame.
If burner ame pattern is incorrect, as shown
in Figure 13
• turn appliance off (see To Turn Off Gas
to Appliance, page 12
• see Troubleshooting, page 13
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 6 under Lighting
Instructions, page 10.
2. Depress control knob and light pilot with
match.
3. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob. Now follow steps 9
through 11 under Lighting Instructions,
page 10.
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep
control areas, burner and cir-
culating air passageways of
replace clean. Inspect these
areas of replace before each
use. Have replace and chimney
inspected yearly by a qualied
service person. Fireplace may
need more frequent cleaning due
to excessive lint from carpeting,
bedding material, pet hair, etc.

www.fmiproducts.com
114370-02H 13
TROUBLESHOOTING
WARNING: Turn off log set and let cool before servicing. Only a
qualied service person should service and repair log set.
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.
POSSIBLE CAUSE REMEDY
OBSERVED PROBLEM
1. Ignitor electrode not con-
nected to ignitor cable
2. Ignitor cable pinched or
wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode posi-
tioned wrong or broken
1. Gas supply turned off or
equipment 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 in-
stalled
5. Depleted gas supply (pro-
pane/LP only)
6. Pilot is clogged
7. Gas regulator setting is
not correct
When ignitor button is pressed,
there is no spark at pilot
When ignitor button is pressed,
there is spark at pilot but no
ignition
1. Reconnect ignitor cable
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 ignitor electrode
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 ignit-
ing operation until air is
removed
5. Contact local propane/LP
gas company
6. Clean pilot (see Cleaning
and Maintenance, page 12)
or replace pilot assembly
7. Replace gas regulator

www.fmiproducts.com 114370-02H14
POSSIBLE CAUSE REMEDY
OBSERVED PROBLEM
1. Control knob not fully
pressed in
2. Control knob not pressed
in long enough
3. Safety interlock system
has been triggered
4. Equipment shutoff valve
not fully open
5. Pilot flame not touch-
ing thermocouple, which
allows thermocouple to
cool, causing pilot ame 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
6. Thermocouple connection
loose at control valve
7. Thermocouple damaged
8. Control valve damaged
1. Inlet gas pressure is too
low
2. Burner orice clogged
3. Mislocated crossover
tube
4. Remote selector in OFF
position
5. Wire disconnected from
gas control
1. Manifold pressure is too
low
2. Burner orice clogged
3. Mislocated crossover
tube
1. Burner orice is clogged
or damaged
2. Damaged burner
3. Gas regulator defective
Pilot lights but ame goes
out when control knob is
released
One or both burner does not
light after ODS/pilot is lit
Delayed ignition of burner
Burner backfiring during
combustion
1. Press in control knob fully
2. After pilot lights, keep con-
trol knob pressed in 30
seconds
3. Wait one minute for safety
interlock system to reset.
Repeat ignition operation
4. Fully open equipment shut-
off valve
5. A) Contact local natural or
propane/LP gas company
B) Clean pilot (see Clean-
ing and Maintenance,
page 12) or replace pilot
assembly
6. Hand tighten until snug,
then tighten 1/4 turn more
7. Replace pilot assembly
8. Replace control valve
1. Contact local natural or
propane/LP gas company
2. Clean burner (see Cleaning
and Maintenance, page 12)
or replace burner orice
3. Contact qualified service
person
4. Put remote selector in ON
position
5. See Wiring Diagrams,
page 18
1. Contact local natural or
propane/LP gas company
2. Clean burner (see Cleaning
and Maintenance,page 12)
or replace burner orice
3. Contact qualified service
person
1. Clean burner (see Cleaning
and Maintenance, page 12)
or replace burner orice
2. Replace damaged burner
3. Replace gas regulator
TROUBLESHOOTING
Continued

www.fmiproducts.com
114370-02H 15
TROUBLESHOOTING
Continued
POSSIBLE CAUSE REMEDY
OBSERVED PROBLEM
1. Not enough air
2. Gas regulator defective
1. Residues from manufac-
turing processes and logs
curing
1. Turning control knob to HI
position when burners are
cold
2. Air in gas line
3. Air passageways on appli-
ance blocked
4. Dirty or partially clogged
burner orice(s)
1. When heated, vapors
from furniture polish, wax,
carpet cleaners, etc. may
turn into white powder
residue
1. Battery is not installed.
Battery power is low
1. Metal expanding while
heating or contracting
while cooling
Orange ame in burner during
burner combustion
Slight smoke or odor during
initial operation
Appliance produces a whis-
tling noise when burners
are lit
White powder residue forming
within burner box or on adja-
cent walls or furniture
Remote does not function
Appliance produces a click-
ing/ticking noise just after
burners are lit or shut off
1. Check burner for dirt and
debris. If found, clean
burner (see Cleaning and
Maintenance, page 12)
2. Replace gas regulator
1. Problem will stop after a
few hours of operation
1. Turn control knob to LO
position and let warm up
for a minute
2. Operate burners until air is
removed from line. Have
gas line checked by local
natural or propane/LP gas
company
3. Observe minimum installa-
tion clearances (see page
6)
4. Clean burners (see Cleaning
and Maintenance, page 12)
or replace burner orice
1. Turn appliance off when
using furniture polish, wax,
carpet cleaners, or similar
products
1. Replace batteries in re-
ceiver and remote control
1. This is common with most
appliances. If noise is ex-
cessive, contact qualied
service person

www.fmiproducts.com 114370-02H16
OBSERVED PROBLEM
Appliance produces unwanted
odors
Appliance shuts off in use
(ODS operates)
Gas odor even when control
knob is in OFF position
Gas odor during combustion
REMEDY
1. Open flue to maximum.
Stop using odor causing
products while appliance
is running
2. Rell supply tank (propane/
LP only)
3. Locate and correct all leaks
(see Checking Gas Con-
nections, page 9)
1. Open window and/or door
for ventilation
2. Contact local natural or
propane/LP gas company
3. Clean ODS/pilot (see
Cleaning and Maintenance,
page 12)
1. Locate and correct all leaks
(see Checking Gas Con-
nections, page 9)
2. Replace control valve or
gas control
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all leaks
(see Checking Gas Con-
nections, page 9)
POSSIBLE CAUSE
1. Appliance burning vapors
from paint, hair spray,
glues, cleaners, chemi-
cals, new carpet, etc. (See
IMPORTANT statement
above)
2. Low fuel supply (propane/
LP only)
3. Gas leak. See Warn-
ing statement at top of
page
1. Not enough fresh air is
available
2. Low line pressure
3. ODS/pilot is partially
clogged
1. Gas leak. See Warn-
ing statement at top of
page
2. Control valve or gas con-
trol defective
1. Foreign matter between
control valve and burner
2. Gas leak. See Warn-
ing statement at top of
page
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. Fol-
low the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re department.
IMPORTANT: Operating log set where impurities in air exist may create odors. Cleaning sup-
plies, 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.

www.fmiproducts.com
114370-02H 17
SPECIFICATIONS
VTD-18NV-JHB
• Rating (Variable): 59,000 Btu/Hr
• Type Gas: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Max - 10.5" W.C., Min* - 5.0" W.C.
VTD-24NV-JHB
• Rating (Variable): 69,000 Btu/Hr
• Type Gas: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Max - 10.5" W.C., Min* - 5.0" W.C.
VTD-30NV-JHB
• Rating (Variable): 74,000 Btu/Hr
• Type Gas: Natural
• Ignition: Piezo
• Manifold Pressure: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Max - 10.5" W.C., Min* - 5.0" W.C.
VTD-18PV-JHB
• Rating (Variable): 59,000 Btu/Hr
• Type Gas: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 10" W.C.
• Inlet Gas Pressure (in. of water):
Max - 14" W.C., Min* - 11" W.C.
VTD-24PV-JHB
• Rating (Variable): 69,000 Btu/Hr
• Type Gas: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 10" W.C.
• Inlet Gas Pressure (in. of water):
Max - 14" W.C., Min* - 11" W.C.
VTD-30PV-JHB
• Rating (Variable): 74,000 Btu/Hr
• Type Gas: Propane/LP
• Ignition: Piezo
• Manifold Pressure: 10" W.C.
• Inlet Gas Pressure (in. of water):
Max - 14" W.C., Min* - 11" W.C.
*For purpose of input adjustment

www.fmiproducts.com 114370-02H18
ON/OFF-HI/LO REMOTE MODELS ONLY
AUTO
OFF
ON
Thermopile
WIRING DIAGRAMS
SERVICE HINTS
When Gas Pressure is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specied heat
• (for propane/LP units) 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
installation, operation, or troubleshooting.
If so, contact FMI PRODUCTS, LLC at
1-866-328-4537. When calling please have
your model and serial numbers of your
heater ready.
You can also visit our web site at
www.fmiproducts.com.
ON/OFF REMOTE MODELS ONLY

www.fmiproducts.com
114370-02H 19
ACCESSORIES
REPLACEMENT PARTS
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call FMI PRODUCTS, LLC at
1-866-328-4537.
Purchase these accessories from your local
dealer. If they can not supply these accessories
call FMI PRODUCTS, LLC at 1-866-328-4537
for information. You can also write to the ad-
dress listed on the back page of this manual.
LAVA ROCK - GA6060
Order when additional rock is desired (1.8 lb.
bag).
DAMPER CLAMP - GA6080
Permanently opens chimney ue damper for
vented operation.
ON/OFF REMOTE CONVERSION KIT
OF-RC
Converts ON/OFF valve for use with hand-
held ON/OFF remote
HI/LO CONVERSION KIT
VTD-HLCN (NG), VTD-HLCP (LP)
Converts valve from ON/OFF to HI/LO
ON/OFF - HI/LO REMOTE
CONVERSION KIT - OFSM-RCN (NG)
OFSM-RCP (LP)
Converts valve from ON/OFF to HI/LO for use
with hand-held ON/OFF remote (included)
When calling, have ready:
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• purchase date
Usually, we will ask you to return the part to
the factory.

www.fmiproducts.com 114370-02H20
PARTS
MODELS VTD-18NV-JHB, VTD-24NV-JHB, VTD-30NV-JHB
2
10
11
26
27
28
20
13 7
9
13
19
1
8
12
3
56
4
12
5
24
29
22
18
13
23
14
17
15
16
13
29
21
25
12
12