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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 

fire department

4.  This heater shall not be installed in a bedroom 

or bathroom, unless installed as a vented appli

-

ance. See 

Installing Damper Clamp Accessory 

for Vented Operation

, page 11.

5.  Before  installing  in  a  solid  fuel  burning 

fireplace, the chimney flue and firebox must 

be cleaned of soot, creosote, ashes and loose 

paint by a qualified chimney cleaner. Creosote 

will ignite if highly heated. A dirty chimney 

flue may create and distribute soot within 

the house. Inspect chimney flue for damage. 

If damaged, repair flue and firebox before 

operating heater.

6.  Do not burn solid-fuel in a masonry or UL127 

factory-built fireplace in which a vent-free 

room heater is installed.

7.  If fireplace has glass doors, never operate this 

heater with glass doors closed. If you operate 

heater with doors closed, heat buildup inside fire

-

place will cause glass to burst. Make sure there 

are no obstructions across opening of fireplace.

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 for Combustion and 

Ventilation,

 page 5. If heater keeps shutting off, 

see Troubleshooting,

 page 23.

11.  Do not run heater

• where flammable 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 qualified 

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. 

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 qualified 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-fired 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.

Summary of Contents for LDL3924NR

Page 1: ...e in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service mu...

Page 2: ...s for installation only in a solid fuel burning mason ry or UL127 factory built fireplace orinalistedvent less firebox enclosure It is design certified for these installationsinaccordance with ANSI Z2...

Page 3: ...anual for reference It is your guide to safe and proper operation of this heater WARNING Any change to this heater or its controls can be dangerous WARNING Do not use a blower insert heat exchanger in...

Page 4: ...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 for Combustion and Ven...

Page 5: ...ystem 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 not be installed in a con...

Page 6: ...municating directly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space Adjoining rooms are communicating only...

Page 7: ...is fresh air would come from an adjoining un confined space When ventilating to an adjoining unconfined space you must provide two perma nent openings one within 12 of the ceiling and one within 12 of...

Page 8: ...ted on floor or wall of fireplace If not drafting may cause pilot outage or sooting Useaheat resistantsealant Do not seal chimney flue damper WARNING Never install the heater in a bedroom or bathroom...

Page 9: ...minimum clearances If you can provide greater clearances from floor ceiling and adjoin ing wall LOG SIZING REQUIREMENTS Log Size Minimum Firebox Height Depth Front Width Rear Width 24 17 14 28 21 30 1...

Page 10: ...must operate heater with chimney flue damper open Go to Installing Damper Clamp Accessory for Vented Operation page 11 Mantel Clearances In addition to meeting noncombustible material clearances you m...

Page 11: ...PERATION Note When used as a vented heater appliance must be installed only in a solid fuel burning fireplace with a working flue and constructed of noncombustible material You may use this heater as...

Page 12: ...ing not provided Connect approved flexible gas hose to gas control fitting in heater see Figure 11 IMPORTANT Hold gas fitting with wrench when connecting flexible gas hose 2 Locate two masonry screws...

Page 13: ...equipment shutoff valve from your dealer See Accessories page 31 For propane LP units the installer must supply an external regulator The external regulator will reduce incoming gas pressure You must...

Page 14: ...hook up NPT tap must be upstream from heater see Figure 16 IMPORTANT Install equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to...

Page 15: ...ocated 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 fluid to all joints Bubbles forming show a leak 5 C...

Page 16: ...approved withthisheatermayresultinprop erty damage or personal injury CAUTION After installa tion and periodically thereafter check to ensure that no flame comes in contact with any log With the heat...

Page 17: ...ighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settl...

Page 18: ...ill come on automatically within one minute when the control valve is in the ON position after the pilot is lit 1 STOP Read the safety information on page 17 2 Make sure equipment shutoff valve is ful...

Page 19: ...nits will have a slight curve but flame should be blue and have no yellow or orange color Figure 27 Pilot Propane LP Ignitor Electrode Pilot Burner Figure 28 Pilot Natural Ignitor Electrode Pilot Burn...

Page 20: ...lly switch off Child Safety Lock Out To lock the remote control keys press the On Off key then immediately press the up key see Figure 29 The lock out function is active when the lock icon is lit Repe...

Page 21: ...ry from pilots shown Cleaning and Maintenance WARNING Turn off heater and let cool before cleaning CAUTION You must keep control areas burners and circulating air passageways of heater clean Inspect t...

Page 22: ...inlet hole You may blow through a drinking straw if compressed air is not available Burner Tube Pilot Assembly Pilot Air Inlet Hole Ports Slots Burner Tube Injector Holder May Be Brass or Aluminum De...

Page 23: ...pleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor ca...

Page 24: ...d in 30 seconds 3 Wait one minute for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shutoff valve 5 A Contact local natural or propane LP gas company B Clean ODS pi...

Page 25: ...es 9 through 11 4 Clean burners see Cleaning and Maintenance page 21 or replace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products 1 Refer to Air for...

Page 26: ...3 ODS pilot is partially clogged 1 Gas leak See Warning statement at top of page 2 Control valve defective 1 Foreign matter between con trol valve and burner 2 Gas leak See Warning statement at top o...

Page 27: ...ment Parts Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty Parts Under Warranty Contact authorized dealers of this product If they c...

Page 28: ...Parts Breakdown models LDL3924NR LDL3924PR LDL3930NR and LDL3930PR F F P O 11 28 2 3 25 18 5 19 10 7 7 6 4 20 24 16 14 26 9 23 23 15 16 8 23 23 23 17 21 1 12 13 22 27 1 27 2 27 3 27 4 27 5 27 6 27 7 2...

Page 29: ...rner Retainer Spring 1 20 103784 01 103784 01 103784 01 103784 01 Pilot Knob Extension 1 21 111442 02 111442 02 111442 02 111442 02 Digital Display Remote Control 1 22 111441 02 111441 02 111441 02 11...

Page 30: ...39 000 Type Gas Propane LP Natural Ignition Piezo Piezo Manifold Pressure 8 0 W C 3 5 W C Inlet Gas Pressure in of water Maximum 14 10 5 Minimum 11 5 For purpose of input adjustment Specifications Wi...

Page 31: ...ps deflect heat away from mantel or wall above fireplace Fits openings 28 to 48 wide DAMPER CLAMP GA6080 Not Shown For all models Permanently opens chimney flue damper for vented operation LAVA ROCK G...

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