Desa VTGF33NRB Quick start guide

For more information, visit www.desatech.com
WARNING: If the information in this manual is not fol-


         


— WHAT TO DO IF YOU SMELL GAS
 
• Do not touch any electrical switch; do not use

 

 

 -



UNVENTED (VENT-FREE) GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL

VTGF33NRB AND VTGF33PRB
GAS FIREPLACE WITH TOTAL CONTROL SYSTEM (TCS)

www.desatech.com 113134-01G2
SAFETY INFORMATION
TABLE OF CONTENTS
Safety Information ............................................... 2
Product Identication........................................... 4
Local Codes......................................................... 4
Unpacking............................................................ 5
Product Features................................................. 5
Air for Combustion and Ventilation ...................... 5
Installation ........................................................... 8
Operating Fireplace........................................... 21
Inspecting Burners............................................. 24
Cleaning and Maintenance................................ 25
Specications .................................................... 26
Troubleshooting................................................. 27
Replacement Parts............................................ 31
Service Hints ..................................................... 31
Technical Service............................................... 31
Illustrated Parts Breakdown and Parts List........ 32
Accessories ....................................................... 36
Wiring Diagram.................................................. 39
Warranty Information ...........................Back Cover
  -
-
teration, service or main-
tenance can cause in-

Refer to this manual for
correct installation and
 
For assistance or addi-
tional information con-
   


WARNING: This is an
  -
    
from the room in which


and ventilation air must
Air
for Combustion and Ven-
tilation

-
stalled in an aftermarket,*
 
 
-


     
   
   
   



   
  
chemicals known to the State
of California to cause cancer or
-



   
    

    
   
   


www.desatech.com
113134-01G 3


   Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness or nausea. If
you have these signs, the heater may not be
working properly.  Have
heater serviced. Some people are more af-
fected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol and those at high altitudes.
 Natural and
propane/LP gases are odorless. An odor-mak-
ing 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.
    
this heater or its controls can

-



WARNING: Do not allow fans



    
   

    



SAFETY INFORMATION
Continued  
    


    -
-

away from hot surfaces to avoid
-



-
dren when they are in the room

   -
   
 



    
     -
     

    
-
-

1. 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.
2. Do not place propane/LP supply tank(s)
inside any structure. Locate propane/LP
supply tank(s) outdoors (propane/LP
units only).
3. 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 re department

www.desatech.com 113134-01G4
SAFETY INFORMATION
Continued
17. Provide adequate clearances around air
openings.
PRODUCT
IDENTIFICATION
Figure 2 - Fireplace
Top Louver
Assembly
Screen
Assembly
Top Outer Casing
Blower
Assembly
Figure 1 - Log Set and Base
Log Set
Base
Assembly
Piezo
Ignitor
Fan
Switch
Bottom Louver Assembly
LOCAL CODES
Install and use replace 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
4. This replace shall not be installed in a
bedroom or bathroom.
5. Do not use this replace as a wood-burn-
ing replace. Use only the logs provided
with the replace.
6. Do not add extra logs or ornaments such
as pine cones, vermiculite or rock wool.
Using these added items can cause soot-
ing. Do not add lava rock around base.
Rock and debris could fall into the control
area of replace.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 25.
8. 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.
9. This replace needs fresh air ventilation to
run properly. This replace has an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the re-
place if not enough fresh air is available.
See Air for Combustion and Ventilation,
page 5. If replace keeps shutting off, see
Troubleshooting, pages 27.
10. Do not run replace
• where ammable liquids or vapors are
used or stored
• under dusty conditions
11. Do not use this replace to cook food or
burn paper or other objects.
12. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service technician to in-
spect the replace and to replace any part
of the control system and any gas control
which has been under water.
13. Do not operate fireplace if any log is
broken. Do not operate replace if a log
is chipped (dime-sized or larger).
14. Turn fireplace off and let cool before
servicing. Only a qualied service person
should service and repair replace.
15. Operating replace above elevations of
4,500 feet could cause pilot outage.
16. To prevent performance problems with
propane/LP units, do not use propane/LP
fuel tanks of less than 100 lb. capacity.

www.desatech.com
113134-01G 5
SAFETY DEVICE
This replace has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS/pilot is a required feature
for vent-free room heaters. The ODS/pilot
system shuts off the replace if there is not
enough fresh air.
WIRELESS REMOTE CONTROL
This replace features an infrared wireless re-
mote control. This control system can be used
to automatically light the pilot and adjust the
burner ame height at the push of a button.
WIRED WALL-MOUNTED REMOTE
CONTROL
This fireplace features a two-button wall
switch assembly with glowing LED’s. The wall
switch performs the same functions as the
wireless hand-held remote control with the
added feature of LED’s for visual feedback
of operation and status.
BLOWER ASSEMBLY
This replace includes a blower assembly.
The blower operates thermostatically. The
blower circulates heated air from the replace
into the room.
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
     
-
-





Today’s homes are built more energy efcient
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. Dur-
ing heating months, home owners want their
homes as airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
LOCAL CODES
Continued
UNPACKING
CAUTION: Do not remove the




1. With utility knife, cut the carton all the way
around above the staples on the bottom
tray. Lift the carton off the heater. Remove
packing. Note: The hood is located in the
packing on the right hand side of the heater
front. Lift the heater off the bottom tray.
2. Locate two screws above top corners of
the replace screen. Remove and discard
these screws. Lift replace screen up and
pull out to remove.
3. Remove protective packaging applied to
logs, log base assembly and replace.
4. Remove replace hood from carton insert.
5. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you bought replace.
PRODUCT FEATURES

This vent-free replace is clean burning. It re-
quires no outside venting. There is no heat loss
out a vent or up a chimney. Heat is generated
by both realistic ames and glowing embers.
When used without the optional blower, the
replace requires no electricity making it ideal
for emergency backup heat.

This replace has a piezo ignitor. This sys-
tem requires no matches, batteries or other
sources to light replace.
State of Massachusetts: The installa-
tion must be made by a licensed plumber
or gas tter in the Commonwealth of
Massachusetts.
Sellers of unvented propane or natural
gas-red supplemental room heaters
shall provide to each purchaser a copy of
527 CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for
bedroom and bathroom installation in
the Commonwealth of Massachusetts.

www.desatech.com 113134-01G6
AIR FOR COMBUSTION
AND VENTILATION
Continued
Exhaust fans, replaces, 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 fuel-burning appliances.

VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section
5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 5 through 7 will
help you classify your space and provide
adequate ventilation.

The air that leaks around doors and windows
may provide enough fresh air for combustion
and ventilation. However, in buildings of un-
usually tight construction, you must provide
additional fresh air.

construction where:
 -
    
      
2

and
 
and
      
     


    


If your home meets all of the three criteria

  Ventilation Air From Outdoors,

If your home does not meet all of the three
    Determining
Fresh-Air Flow for Fireplace Location

The National Fuel Gas Code, ANSI Z223.1/
NFPA 54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu per hour (4.8 m3per kw) of the ag-
gregate input rating of all appliances installed in
that space and an unconned space as a space
whose volume is not less than 50 cubic feet per
1,000 Btu per hour (4.8 m3per kw) of the ag-
gregate 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 unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION


Use this work sheet to determine if you have
a conned or unconned space.
Includes the room in which you will install
replace plus any adjoining rooms with door-
less 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 18 ft.
(width) x 8 ft. (ceiling height) = 2880 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. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2880 cu. ft. (volume of space) x 20
= 57,600 (maximum Btu/Hr the space can
support)
3. Add the Btu/Hr of all fuel burning appliances
in the space.
Vent-free replace _________ Btu/Hr
Gas water heater* _________ Btu/Hr
Gas furnace _________ Btu/Hr
Vented gas heater _________ Btu/Hr
Gas replace logs _________ Btu/Hr
Other gas appliances* +________ Btu/Hr
Total = ________ Btu/Hr

www.desatech.com
113134-01G 7
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater ____________ Btu/Hr
Vent-free replace + ___________ Btu/Hr
Total = ___________ Btu/Hr
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: 57,600 Btu/Hr (maximum the
space can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the example is a conned 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
unconned space, remove door to adjoining
room or add ventilation grills between rooms.
See Ventilation Air From Inside Building.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors.
C. Install a lower Btu/Hr replace, if lower Btu/Hr
size makes room unconned.
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
WARNING: If the area in
-


    



in the National Fuel Gas Code,
ANSI Z223.1/NFPA54 Section 5.3

AIR FOR COMBUSTION
AND VENTILATION
Continued
VENTILATION AIR

This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 3). You can also remove door
into adjoining room (see option 3, Figure 3).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Section 5.3, Air for Com-
bustion and Ventilation for required size of
ventilation grills or ducts.
Figure 4 - Ventilation Air from Outdoors
Figure 3 - Ventilation Air from Inside
Building
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
and one within 12" of the oor. Connect these
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for
inlet or outlet air into attic if attic has a thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
40,000
33,000
73,000

www.desatech.com 113134-01G8
INSTALLATION
NOTICE: This heater is intended
    


     -








 -
    -

WARNING: Never install the

 
• in a recreational vehicle
• where curtains, furniture,
   


     -

 
• in windy or drafty areas
-
    
currents move heat to wall sur-

     
   

     
smoke, aromatic candles, clean-



Note: Your replace is designed to be used in
zero clearance installations. Wall or framing ma-
terial can be placed directly against any exterior
surface on the rear, sides or top of your replace,
except where standoff spacers are integrally at-
tached. If standoff spacers are attached to your
replace, these spacers can be placed directly
against wall or framing materials.
Use the dimensions shown for rough openings
to create the easiest installation (see Built-In
Fireplace Installation, page 17).
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
replace in rooms without enough ventilation
air may cause mildew to form from too much
moisture. See Air for Combustion and Ventila-
tion, page 5.
IMPORTANT: Make sure the fireplace is
level. If replace is not level, log set will not
work properly.

Use the correct gas type (natural or propane/LP)
for your unit. If your gas supply is not correct,
do not install replace. Call dealer where you
bought replace for proper type replace.



-



This replace normally operates under 120
VAC/60 Hz line voltage. The electrical cord
supplied with your replace is ve feet in length.
You must locate replace within reach of a 120
volt grounded electrical outlet. If not, you must
install an electrical outlet within reach of the
replace power cord. The GA3555 outlet ac-
cessory may be used for built-in applications.
INSTALLATION CLEARANCES
WARNING: Maintain the



MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS



www.desatech.com
113134-01G 9
Carefully follow the instructions below. This
will ensure safe installation.
Minimum Clearances For Side


A. Clearances from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 5.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This com-
bustible material must be 4" from the side
of the replace cabinet (see Figure 5).
B. Clearances from the top of the replace
opening to the ceiling should not be less
than 42".
Figure 5 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
INSTALLATION
Continued

After unpacking replace (see Unpacking,
page 5), we suggest that you install your re-
place system in the following sequence:
1. Removal of fireplace floor assembly
(required)
2. Electrical connections for power cord
(required)
3. Relocating wall switch (optional)
4. Installing blower accessory (optional)
5. Connecting fireplace to gas supply
(required)
6. Checking gas connections (required)
7. Firebox installation, conventional or built-
in (required)
8. Installing perimeter trim (optional)
9. Installing replace hood (required)
10. Installing logs (required)
11. Installing replace screen (required)
Use the following instructions to complete
each step.
Figure 6 - Removing Fireplace Floor
Assembly
Screw
Fireplace
Floor
Assembly

AND FLOOR ASSEMBLY
NOTICE   


  
-

1. To remove replace screen, remove two
screws that hold replace screen in place
for shipping. These screws are located
near top of screen. Discard screws. Lift re-
place screen up and pull out to remove.
2. If logs are installed, carefully remove the
logs and set aside, noting the properly
mounted location of each.
3. Remove screws that attach replace oor
assembly to replace. Open lower louver
door. Carefully lift up replace oor assem-
bly and remove from replace, taking care
to pull exible gas line through the access
holes (see Figure 6). Note: Be careful of
all wires on underside of log base.
     
-


Flexible
Gas Line
Screw

www.desatech.com 113134-01G10
ELECTRICAL CONNECTIONS FOR

This replace operates on 120 VAC, 60 Hz
power. An electrical power cord is supplied
with this unit.
For Mantel Installation
1. Determine from which side of the replace
the power cord will exit. Locate the 1.5" di-
ameter hole near the center of oor support
bracket on appropriate side of lower cavity
(see Figure 7).
2. Locate power cord. Remove wire tie or
tape holding plug end of power cord.
3. Power cord has 2 plastic hole bushings
threaded onto it. Route cord’s 3-prong
plug through the 1.5" diameter hole in
appropriate oor support bracket.
4. Push first plastic bushing completely
through hole. Squeeze bushing as
needed to do this.
5. Install the second plastic bushing into
the hole in the oor support bracket by
snapping into place.
6. Route the 3-prong plug through the 1.5"
hole in replace outer casing.
7. Install the rst plastic bushing into this hole
by snapping into place.
8. After you have connected to gas supply and
checked your gas connections (see pages
14 and 15), plug power cord into any con-
venient 3-prong grounded wall receptacle
near replace.
INSTALLATION
Continued
Figure 7 - Routing Power Cord
Power Cord
Bushings
Hole in Floor
Support Bracket Hole in Outer
Casing
For Recessed Installation
If an outlet is not installed in replace, install
model GA3555 - Outlet Kit with Cover. This
kit will supply a convenient 3-prong grounded
electrical outlet for power. Refer to installation
manual provided with this optional accessory
for instructions on wiring. Note: A qualied in-
staller must make all electrical connections.
RELOCATING WALL SWITCH
ASSEMBLY
Note: The decorative wall switch plate sup-
plied is white. The wall switch plate may be
painted to match your decor.
The push-button switch and decorative wall
plate assembly supplied with your replace
is pre-mounted at the factory in the lower
cavity of the replace. You may relocate this
wall switch assembly to a more convenient
location such as the side of your mantel or
directly onto the wall near the replace. To
mount the wall switch assembly, you must
rst cut openings in the mantel or wall where
the switch will be located.
Note: If you choose to relocate the wall switch
assembly, do so before nal installation into
a mantel or recessing into a wall. If you are
installing an optional blower accessory, install
it at the same time you relocate the wall switch
assembly.
CAUTION: The wall switch
-
 

   
    

wall of mantel or on wall to side

For Recessed Installation
If replace is to be recessed into a wall (see
Built-In Fireplace Installation, page 17), we
recommend mounting wall switch assembly
to left side of replace. The wall switch as-
sembly should be mounted approximately
12" from left edge of replace and less than
60" from the oor. IMPORTANT: Do not locate
wall switch assembly directly in front of wall
stud - there must be room behind wall board
for wires from switch. If you choose to locate
wall switch assembly to right side of replace,
the length of the cord restricts you to less than
6" from right edge of replace and less than
48" from oor.