Desa LDL3924NR Quick start guide

WARNING: If the information in this manual is not fol-


         


— WHAT TO DO IF YOU SMELL GAS
 
• Donottouchanyelectricalswitch;donotuseany

 

 

 -



UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
MODELS LDL3924NR, LDL3924PR,
LDL3930NR AND LDL3930PR

24" and 30" Remote-Ready Models

111515-01F2
SAFETy INFORMATION
TAbLE OF CONTENTS
Safety Informa ion ............................................... 2
Local Codes......................................................... 4
Unpacking............................................................ 5
Product Identication........................................... 5
Product Features................................................. 5
Air For Combustion and Ventilation..................... 5
Installation ........................................................... 8
Operating Heater............................................... 17
Inspecting Heater .............................................. 21
Cleaning and Maintenance................................ 21
Troubleshooting................................................. 23
Replacement Parts............................................ 27
Service Hints ..................................................... 27
Technical Service............................................... 27
Illustrated Parts Breakdown and Parts List........ 28
Specications .................................................... 30
Wiring Diagram.................................................. 30
Accessories....................................................... 31
Warranty Information...........................Back Cover
  -
  -
teration, service, or main-
  

to this manual for correct
-
   -
tance or additional infor-

  


is for installation only in a
  -
   
-

  
installationsinaccordance
-
tion: Do not install this

  
   



WARNING: This is an
  -
    
from the room in which


and ventilation air must
Air
for Combustion and Ven-
tilation

-
stalledin anaftermarket,*
 
 
-


     
   
   
   




111515-01F 3
-

known to the state of California




    -

    

   
   



 Earlysigns ofcarbon
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 heater serviced. Some people
are more affected by carbon monoxide than others.
These include pregnant women, people with heart
or lung disease or anemia, those under the 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 warn-
ings. 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 use a
   
-

SAFETy INFORMATION
Continued WARNING:Donotallowfans



    
   

    



   
    



    


   
will remain hot for a time after


-
dren when they are in the room

-



    

    

    
-
-


4
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 heater shall not be installed in a bedroom
or bathroom, unless installed as a vented appli-
ance. See InstallingDamperClampAccessory
for Vented Operation, page 11.
5. Before installing in a solid fuel burning
replace, 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. A dirty chimney
ue may create and distribute soot within
the house. Inspect chimney ue for damage.
If damaged, repair ue and rebox before
operating heater.
6. Do not burn solid-fuel in a masonry or UL127
factory-built replace in which a vent-free
room heater is installed.
7. If replace has glass doors, never operate this
heater with glass doors closed. If you operate
heater with doors closed, heat buildup inside re-
place will cause glass to burst. Make sure there
are no obstructions across opening of replace.
8. To prevent the creation of soot, follow the instruc-
tions in Cleaning and Maintenance, page 21.
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 and furniture.
10. This heater needs fresh, outside air ventilation
to run properly. This heater has an Oxygen
Depletion Sensing (ODS) safety shutoff system.
The ODS shuts down the heater if enough fresh
air is not available. See Air forCombustionand
Ventilation, page 5. If heater keeps shutting off,
see Troubleshooting, page 23.
11. Do not run heater
• where ammable liquids or vapors are used
or stored
• under dusty conditions
12. Do not use this heater to cook food or burn paper
or other objects.
13. Do not use heater if any part has been exposed
to or under water. Immediately call a qualied
service technician to inspect the room heater and
toreplaceanypartofthecontrolsystemandany
gas control which has been under water.
14. Do not operate heater if any log is broken. Do
not operate heater if a log is chipped (dime-
sized or larger).
15. Turn heater off and let cool before servicing,
installing, or repairing. Only a qualied service
person should install, service, or repair heater.
16. Operating heater above elevations of 4,500
feet may cause pilot outage.
17. To prevent performance problems, do not
use propane/LP fuel tank of less than 100 lb.
capacity (propane/LP units only).
18. Provide adequate clearances around air
openings.
LOCAL CODES
Install and use heater with care. Follow all local
codes. In the absence of local codes, use the lat-
est 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
Note: Where listed vented decorative logs are
required, thermostat operation is not permitted.
SAFETy INFORMATION
Continued
State of Massachusetts: The installa-
tion must be made by a licensed plumber
or gas fitter 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.

5
UNPACkING
CAUTION:Donotremovethe
     -

   

1. Remove logs and heater base assembly from
carton. Note: Do not pick up heater base as-
sembly by burners. This could damage heater.
Always handle base assembly by grate.
2. Remove all protective packaging applied to
logs and heater for shipment.
3. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought heater.
PRODUCT
IDENTIFICATION
Figure 1 - Product Identication
Control
Cover Log
Remote
Control Control Knob
and Piezo Ignitor
(behind cover log)
8 Piece
Log Set
PRODUCT FEATURES

This heater is clean burning. It requires no outside
venting. There is no heat loss out a vent or up a
chimney. Heat is generated by realistic ames. This
heater is designed for vent-free operation with ue
damper closed. It has been tested and approved to
ANSI Z21.11.2 standard for unvented heaters. State
and local codes in some areas prohibit the use of
vent-free heaters. This heater may also be operated
as a vented decorative (ANSI Z21.60) product by
opening the ue damper.

This heater has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free room
heaters. The ODS/pilot shuts off the heater if there
is not enough fresh air.

This heater has a piezo ignitor. This system re-
quires no matches, batteries, or other sources to
light heater.
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 NationalFuelGas
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 5 through 7 will help
you classify your space and provide adequate
ventilation.

AIR FOR COMbUSTION
AND VENTILATION
Continued

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.

construction where:
 -
    
      
-112

and
 
and
      
     


    


If your home meets all of the three

VentilationAir
From Outdoors
If your home does not meet all of the three
    Determining
Fresh-Air Flow For Heater 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 m3 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 m3 per kw) of the aggregate input rating of
all appliances installed in that space. Rooms com-
municating 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
heater plus any adjoining rooms with doorless
passageways or ventilation grills between the
rooms.
1. Determine the volume of the space (length x
width x height).
Length x Width x Height =________cu. ft.
(volume of space)
Example: Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 cu. ft.
(volume of space)
If additional ventilation to adjoining room
is supplied with grills or openings, add the
volume of these rooms to the total volume of
the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
_____________ (volume of space) x 20 =
(Maximum 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.
Direct-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
40,000
33,000
73,000

7
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)
73,000 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 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 Ven-
tilation Air From Outdoors.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size
makes room unconned.
WARNING: If the area in
-


    



in the National Fuel Gas Code,
ANSIZ223.1/NFPA54Section5.3

AIR FOR COMbUSTION
AND VENTILATION
Continued


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 2). You
can also remove door into adjoining room (see
option 3, Figure 2). 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.

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,
Section5.3,AirforCombustionandVentilationfor
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.
Figure 2 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
Figure 3 - Ventilation Air from Outdoors
Outlet
Air Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic

8
INSTALLATION
NOTICE:Thisheaterisintended
    


     -








 -


NOTICE:Stateorlocalcodesmay
-
    

WARNING:Makesurethese-
-




    
-
  

-




WARNING: Seal any fresh air
ventsorashclean-outdoorslocated




WARNING: Never install the
heater
     
unless installed as a vented

• in a recreational vehicle
• wherecurtains,furniture,cloth-

arelessthan42"fromthefront,

 
• in windy or drafty areas
CAUTION: This heater creates

move heat to wall surfaces next to


    

   

air exist, may discolor walls or

IMPORTANT: Vent-free heaters add moisture to
the air. Although this is benecial, installing heater
in rooms without enough ventilation air may cause
mildew to form from too much moisture. See Air
for Combustion and Ventilation, page 5.

Use the correct gas type (natural or propane/LP)
for your unit. If your gas supply is not correct, do
not install log set. Call dealer where you bought
log set for proper type replace.
   
-



INSTALLATION
Continued
Carefully follow the instructions below. This will
ensure safe installation into a masonry, UL127-
listed manufactured replace, or listed vent-free
rebox.
Minimum Clearances For Side


A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 4.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This combus-
tible material must be 4" from the side of the
replace cabinet (see Figure 4).
Note: When installing your gas logs into
a manufactured firebox, follow firebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the replace open-
ing to the ceiling should not be less than 42".
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
Example
INSTALLATION AND CLEARANCES

WARNING: Maintain the
   

    -



Size

 
Front
Width Rear * Width
24" 17" 14" 28" 21"
30" 17" 14" 34" 24"


  
24" and 30" 16" 42"
* Measured at 14" depth.
NOTICE:Manualcontrolheaters

Ifso,youmustalwaysrunheater

    


InstallingDamper
Clamp Accessory for Vented
Operation

Clearances

Note: If using a mantel proceed to If Using Man-
tel. If not using a mantel, follow the information
on this page.
You must have noncombustible material(s) above
the replace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2" thick. With sheet metal, you must have non-
combustible material behind it. Noncombustible
material must extend at least 8" up. If noncombus-
tible material is less than 12", you must install the
replace hood accessory. See Figure 5, page 10 for
minimum clearances.

INSTALLATION
Continued
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
 
Material Safe Installation

12" or more Noncombust ble
material OK.
Between 8" 24" or 30" Models:
and 12" Install replace hood
accessory (GA6050,
GA6052, or GA6053 see
Accessories,page31).
Less than 8" Noncombust ble
material must be
extended to at least 8".
See Between 8" and
12", above. If you
cannot extend
material, you must
operate heater with
ue damper open.

You must have noncombustible material(s) above
the replace opening. Noncombustible materials
(such as slate, marble, tile, etc.) must be at least
1/2" thick. With sheet metal, you must have
noncombustible material behind it. Noncom-
bustible material must extend at least 8" up. If
noncombustible material is less than 12", you
must install the replace hood accessory. Even
if noncombustible material is more than 12", you
may need the hood accessory to deect heat away
from your mantel shelf. See Figures 5, 6 and 7 for
minimum clearances.
IMPORTANT: If you cannot meet these minimum
clearances, you must operate heater with chimney
ue damper open. Go to InstallingDamperClamp
Accessory for Vented Operation, page 11.
MANTEL CLEARANCES
In addition to meeting noncombustible material
clearances, you must also meet required clearances
between replace opening and mantel shelf. If
you do not meet the clearances listed below, you
will need a hood.

If you meet minimum clearance between mantel
shelf and top of replace opening, a hood is not
required (see Figure 6).


If minimum clearances in Figure 6 are not met, you
must have a hood. When using a hood there are
still certain minimum mantel clearances required.
Follow minimum clearances shown in Figure 7
when using hood.
Figure 6 - Minimum Mantel Clearances
Without Using Hood
Figure 7 - Minimum Mantel Clearances
When Using Hood
Minimum
Noncombustible
Material
Minimum
Noncombustible
Material Height
Distances to
Underside of
Mantel
Top of
Fireplace
Opening
Underside of
Mantel Shelf
Mantel Shelf
12"
(A)
18" 20" 22" 24"
All minimum
distances are
in inches
2 1/2"
6"
8"
10"
Min mum
Noncombustible
Mater al
8"
Min 12" 15" 18" 20"
2½"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood
(GA6050,
GA6052 or
GA6053)
Top of
Fireplace
Opening
Underside
of Mantel
She f
Mantel Shelf