Desa LGCFTN 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 any

 

 

 -

      

VENT-FREE COMPACT FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
LGCFTP AND LGCFTN
14,000 to 26,000 Btu/Hr with Thermostat


Base Accessory

www.desatech.com 119508-01A2
SAFETY INFORMATION
TABLE OF CONTENTS
Safety Information ............................................... 2
Local Codes......................................................... 4
Product Information ............................................. 4
Product Features................................................. 5
Unpacking............................................................ 5
Assembly............................................................. 5
Air For Combustion and Ventilation..................... 6
Installation ........................................................... 8
Operating Fireplace........................................... 18
Inspecting Burner .............................................. 20
Cleaning and Maintenance................................ 20
Troubleshooting................................................. 22
Specications .................................................... 26
Service Hints ..................................................... 26
Technical Service............................................... 26
Replacement Parts............................................ 26
Accessories ....................................................... 27
Illustrated Parts Breakdown and Parts Llist....... 28
Parts Centrals.................................................... 30
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,*
 
 
-


     
   
   
   



-

known to the state of California


   



-

   


www.desatech.com
119508-01A 3


 Early signs of carbon
monoxide poisoning resemble the u, with head-
aches, dizziness or nausea. If you have these signs,
the heater may not be working properly. Get fresh
air at once! Have replace 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 inuence
of alcohol and those at high altitudes.
    Natural and pro-
pane/LP gases 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 replace.
    


WARNING: Do not allow fans



    
   

-


 
    



  
    


SAFETY INFORMATION
Continued     -
    
   
adults away from hot surfaces to

     
-

-
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
4. This replace shall not be installed in a bed-
room or bathroom.
5. Do not use this replace as a wood-burning
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 sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of replace.

www.desatech.com 119508-01A4
SAFETY INFORMATION
Continued
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
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Mas-
sachusetts.
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.
PRODUCT INFORMATION
Figure 1 - Vent-Free Gas Compact
Fireplace
Ignitor
Button
Screen
Fireplace
Cabinet
Log
Set
Control
Knob
7. This replace is designed to be smokeless. If
logs ever appear to smoke, turn off replace
and call a qualied service person. Note:
During initial operation, slight smoking could
occur due to log curing and replace burning
manufacturing residues.
8. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 20.
9. 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.
10. This replace needs fresh air ventilation to run
properly. This replace has an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS shuts down the replace if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 6. If replace keeps
shutting off, see Troubleshooting, page 22.
11. Do not run replace
• where ammable liquids or vapors are used
or stored.
• under dusty conditions.
12. Do not use this replace to cook food or
burn paper or other objects.
13. Never place any objects in the replace or on
logs.
14. Do not use replace if any part has been under
water. Immediately call a qualied service
technician to inspect the room replace and
to replace any part of the control system and
any gas control which has been under water.
15. Turn off and unplug replace and let cool be-
fore servicing. Only a qualied service person
should service and repair replace.
16. Operating replace above elevations of 4,500
feet could cause pilot outage.
17. Do not operate replace if any log is broken.
Do not operate replace if a log is chipped
(dime-sized or larger).
18. To prevent performance problems, do not use
propane/LP fuel tank of less than 100 lbs.
capacity (propane/LP units only).
19. Provide adequate clearances around air
openings.

www.desatech.com
119508-01A 5
PRODUCT FEATURES

This replace has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
replaces. The ODS/pilot shuts off the replace if
there is not enough fresh air.

This replace has a piezo ignitor. This system
requires no matches, batteries or other sources to
light replace.
THERMOSTATIC HEAT CONTROL
This replace has a thermostat sensing bulb and a
control valve. The thermostat will automatically
modulate the heat output to maintain a consistent
room temperature. This results in greater replace
comfort. This can also result in lower gas bills.
UNPACKING
1. Remove replace from carton.
2. Remove all protective packaging applied to
replace for shipment.
3. Make sure your replace includes one hard-
ware packet.
4. Check replace for any shipping damage. If
replace is damaged, promptly inform dealer
where you bought replace.
ASSEMBLY
WARNING: Always have
    

-



     

-


Tools Required:
• Phillips screwdriver • slotted screwdriver
• 5/16" hex wrench • scissors

1. Lift screen up and pull out to remove.
Figure 2 - Assembling Fireplace
Log
Screen
Burner Support with
Log Locator Tabs
Branch
Support
Shoulder
Screw
2. Cut two plastic straps to remove the log from
the rebox cavity.
3. An optional blower is available. See Accessories,
page 27. Install optional blower now. Follow
installation instructions provided with blower.
4. Remove log packaging material and discard
packaging. Gently place log set on burner
support (see Figure 2). The log should t at
against top of burner support and log locator
tabs t into the slots under the log. Do not
allow log to contact ame. If ame contacts
log, soot will be created.
5. Reattach screen by placing the notches in the
screen frame over the shoulder screws and
pushing down.
Figure 3 - Assembling Hood
Sheet Metal
Screws
Firebox
Top Hood

1. Locate four black phillips sheet metal screws
from the hardware packet.
2. Insert hood between rebox top and louvers
(see Figure 3).
3. Align screw holes on hood with screw holes
on rebox top.
4. Insert screws as shown in Figure 3. Tighten
screws rmly.

www.desatech.com 119508-01A6
ASSEMBLY
Continued
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
     
    -

-


     
  

Today’s homes are built more energy efficient
than ever. New materials, increased insulation and
new construction methods help reduce heat loss in
homes. Home owners weather strip and caulk around
windows and doors to keep the cold air out and the
warm air in. During heating months, home owners
want their homes as airtight as possible.
While it is good to make your home energy ef-
cient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.
Exhaust fans, 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.


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 fol-
lowing ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 6 through 8 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 unusually
tight construction, you must provide additional
fresh air.
ASSEMBLING AND INSTALLING TRIM
1. Remove packaging from three pieces of trim.
2. Locate two adjusting plates with set screws
and two shims in hardware packet.
3. Align shim under adjusting plate as shown in
Figure 4.
4. Slide one end of adjusting plate/shim in slot
on mitered edge of top trim (see Figure 4).
5. Slide other end of adjusting plate/shim in slot
on mitered edge of side trim (see Figure 4).
6. While rmly holding edges of trim together,
tighten both set screws on adjusting plate with
slotted screwdriver.
7. Repeat steps 2 through 6 or other corner.
8. Trim should be attached only after your
replace has been installed into the mantel
or wall. To install trim, rmly snap trim as-
sembly on shoulder screws (see Figure 5).
Shoulder screws are located on replace
cabinet.
Figure 4 - Assembling Trim
Top Trim
Mitered Edge
Side Trim
Slot
Shim
Adjusting
Plate
Set
Screws
Slot
Figure 5 - Attaching Trim to Compact
Fireplace
Assembled
Trim
Shoulder
Screw

www.desatech.com
119508-01A 7

construction where:
 -
    
      
-112

and
 
and
      
     


    


If your home meets all of the three criteria

See 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 vol-
ume is less than 50 cubic feet per 1,000 Btu per hour
(4.8 m
3
per kw) of the aggregate 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 m
3
per kw) of
the aggregate input rating of all appliances installed
in that space. Rooms communicating directly with
the space in which the appliances are installed*,
through openings not furnished with doors, are
considered a part of the unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW



Use this work sheet to determine if you have a
conned or unconned space.
 Includes the room in which you will install
heater plus any adjoining rooms with doorless
passageways or ventilation grills between the
rooms.
AIR FOR COMBUSTION
AND VENTILATION
Continued
1. Determine the volume of the space (length x
width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 cu. ft.
(volume of space)
If additional ventilation to adjoining room is
supplied with grills or openings, add the volume
of these rooms to the total volume of the space.
2. 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: 2560 cu. ft. (volume of space) x 20 =
51,200 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free heater ____________ Btu/Hr
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
* Do not include direct-vent gas appliances. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
Example:
Gas water heater ____________ Btu/Hr
Vent-free heater + ___________ 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: 51,200 Btu/Hr (maximum the space
can support)
56,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the above example is a conned space
because the actual Btu/Hr used is more than the maxi-
mum 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 adjoin-
ing 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, page 8.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors, page 8.
C. Install a lower Btu/Hr replace, if lower Btu/Hr
size makes room unconned.
30,000
26,000
56,000

www.desatech.com 119508-01A8
AIR FOR COMBUSTION
AND VENTILATION
Continued
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



This fresh air would come from an adjoining un-
conned space. When ventilating to an adjoining
unconned space, you must provide two perma-
nent 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 6). You
can also remove door into adjoining room (see
option 3, Figure 6). 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.
Figure 6 - Ventilation Air from Inside
Building Shown with Optional Mantel
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into Adjoining
Room,
Option 1
Figure 7 - Ventilation Air from Outdoors
Shown with Optional Mantel
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic

Provide extra fresh air by using ventilation grills or
ducts. You must provide two permanent openings:
one within 12" of the ceiling and one within 12"
of the 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 thermostat-
controlled power vent. Heated air entering the attic
will activate the power vent.
INSTALLATION
NOTICE: This heater is intended
    


     -








 -
    -


www.desatech.com
119508-01A 9
Note: Your replace is designed to be used in zero
clearance installations. Wall or framing material
can be placed directly against any exterior surface
of your replace, except where standoff spacers are
integrally attached. 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 Fire-
place Installation, page 10).

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.
   
-
   

INSTALLATION ITEMS
Before installing replace, make sure you have the
items listed below.
• external regulator - propane/LP only (supplied
by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• ground joint union
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certied equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certied equipment shutoff valve from your
dealer. See Accessories, page 27.
Note: If desired, purchase a four-sided brass trim kit
for built-in installations. See Accessories, page 27.

WARNING: Maintain the
minimum clearances shown
  


INSTALLATION
Continued
Figure 9 - Mounting Clearances As
Viewed From Front of Fireplace Shown
with Optional Mantel
Figure 8 - Mounting Clearances As
Viewed From Front of Fireplace Shown
Built In The Wall
6"
Minimum
From
Sides Of
Fireplace
Left
Side
CEILING
36" Minimum
FLOOR
Right
Side
Top Of
Mantel Can
Be Flush
With Wall
Left
Side
CEILING
Right
Side
36"
Minimum
You can recess rebox into the wall. You can
also position replace in the optional cabinet or
corner mantels. IMPORTANT: Only use optional
cabinet or corner mantels specied in this manual.
Purchase the optional mantel from your dealer (see
Accessories, page 27).
WARNING: Never install the

 
• in a recreational vehicle
• wherecurtains,furniture,cloth-

are lessthan 36" from thefront,

 
 
• in windy or drafty areas

www.desatech.com 119508-01A10
-
    
currents move heat to wall sur-

     
   

     
smoke, aromatic candles, clean-



IMPORTANT: Vent-free replaces add moisture
to the air. Although this is benecial, installing re-
place in rooms without enough ventilation air may
cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, page 6.
Note: When installing replace directly on carpet-
ing, tile or other combustible material, other than
wood ooring, the replace shall be installed on a
metal or wood panel extending the full width and
depth of the replace.
CAUTION: If you install the

 

 

For convenience and efciency, install replace
• where there is easy access for operation, inspec-
tion and service.
• in coldest part of room
An optional blower kit is available from your
dealer. See Accessories, page 27. If planning to use
blower, locate replace near an electrical outlet.

Built-in installation of this fireplace involves
installing replace into a framed-in enclosure.
This makes the front of replace ush with wall.
An optional brass trim kit accessory is available
(see Accessories, page 27). Brass trim will extend
past sides of replace approximately 1/2". This
will cover the rough edges of the wall opening. If
installing a built-in mantel above the replace, you
must follow the clearances shown in Figure 14,
page 12. Follow the instructions below to install
the replace in this manner. Note: Your replace is
designed to be used in zero clearance installations.
Wall or framing material can be placed directly
against any exterior surface on the rear, sides or
top of your replace.
Actual Framing
Height 26" 26 7/8"
Front Width 26 3/4" 26 7/8"
Depth 9 1/2" 10 1/2"
Bottom 3/4" 3/4"
1. Frame in rough opening. Use dimensions
shown in Figure 10 for the rough opening.
If installing in a corner, use dimensions shown
in Figure 11 for the rough opening. The height
is 26 7/8" which is the same as the wall opening
above.
36
5
/ 8 "
25
7
/ 8 "
51
3
/ 4 "
26
7
/ 8 "
26
7
/ 8 "
26
7
/ 8 "
3/4" Off
The Floo
r
Minimum
10
1
/ 2 "
Figure 10 - Rough Opening for Installing
in Wall
Figure 11 - Rough Opening for Installing
in Corner
INSTALLATION
Continued