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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
MODELS LDL3930NRB AND LDL3930PRB
Also Design-Certified As Vented Decorative Appliances
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury, or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency, or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.desatech.com
30" Remote-Ready Models
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Related Manuals for Desa LDL3930NRB
Summary of Contents for Desa LDL3930NRB
- Page 1 UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL 30" Remote-Ready Models MODELS LDL3930NRB AND LDL3930PRB Also Design-Certified As Vented Decorative Appliances WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.
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Page 2: Table Of Contents
TABLE OF CONTENTS Safety ..............2 Specifications ............ 23 Local Codes............4 Troubleshooting ..........24 Unpacking............5 Service Hints ............. 28 Product Identification ........... 5 Technical Service..........28 Product Features ..........5 Replacement Parts ..........28 Air For Combustion and Ventilation ..... 5 Wiring Diagram .......... - Page 3 SAFETy Continued WARNING: This product con- WARNING: Do not allow fans tains and/or generates chemicals to blow directly into the fireplace. known to the state of California Avoid any drafts that alter burner to cause cancer or birth defects, flame patterns. Ceiling fans can or other reproductive harm.
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Page 4: Local Codes
SAFETy 10. This heater needs fresh, outside air venti- lation to run properly. This heater has an Continued Oxygen Depletion Sensing (ODS) safety 1. This appliance is only for use with the type shutoff system. The ODS shuts down the of gas indicated on the rating plate. -
Page 5: Unpacking
LOCAL CODES PRODUCT FEATURES Continued OPERATION This heater is clean burning. It requires no out- State of Massachusetts: The installa- side venting. There is no heat loss out a vent tion must be made by a licensed plumber or up a chimney. Heat is generated by realistic or gas fitter in the Commonwealth of flames. - Page 6 AIR FOR COMBUSTION AND VENTILATION Continued Exhaust fans, fireplaces, clothes dryers, and whose volume is less than 50 cubic feet per 1,000 Btu/hr (4.8 m per kw) of the aggregate fuel burning appliances draw air from the house input rating of all appliances installed in that to operate.
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Page 7: Ventilation Air
AIR FOR COMBUSTION AND VENTILATION Continued Example: wall connecting the two spaces (see options 40,000 1 and 2, Figure 2). You can also remove door Gas water heater ___________ Btu/Hr 33,000 into adjoining room (see option 3, Figure 2). Vent-free heater + __________ Btu/Hr 73,000 Follow the National Fuel Gas Code, ANSI... -
Page 8: Installation
INSTALLATION NOTICE: This heater is intended WARNING: Never install the for use as supplemental heat. heater Use this heater along with your • in a bedroom or bathroom primary heating system. Do not unless installed as a vented install this heater as your pri- appliance, see page 11 mary heat source. - Page 9 INSTALLATION Continued INSTALLATION AND CLEARANCES FOR VENT-FREE OPERATION Example WARNING: Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling, and adjoin- ing wall. MINIMUM FIREPLACE CLEARANCE TO *Minimum 16" from Side Wall COMBUSTIBLE MATERIALS Figure 4 - Minimum Clearance for Side Wall 16", Ceiling 42", Front 36"...
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Page 10: Mantel Clearances
INSTALLATION MANTEL CLEARANCES Continued In addition to meeting noncombustible mate- rial clearances, you must also meet required Noncombustible Requirements for clearances between fireplace opening and Material Safe Installation mantel shelf. If you do not meet the clearances Distance (A) listed below, you will need a hood. 12"... - Page 11 INSTALLATION INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED Continued OPERATION NOTICE: Surface temperatures of Note: When used as a vented heater, ap- adjacent walls and mantels be- pliance must be installed only in a solid-fuel come hot during operation. Walls burning fireplace with a working flue and and mantels above the firebox constructed of noncombustible material.
- Page 12 INSTALLATION 4. Place logs in their proper position on heater base (see Installing Logs, page 16). Continued 5. Center heater base and logs front-to- INSTALLING HEATER BASE back and side-to-side in fireplace. ASSEMBLY 6. Carefully remove logs without moving heater base. WARNING: You must secure 7.
- Page 13 INSTALLATION CONNECTING TO GAS SUPPLY Continued WARNING: This appliance played (see Figure 14). This icon will always requires a 1/2" NPT (National show in the control window as long as the Pipe Thread) inlet connection to batteries have power. the pressure regulator. WARNING: A qualified service person must connect heater to gas supply.
- Page 14 INSTALLATION Continued We recommend that you install a sediment CAUTION: Use only new, trap in supply line as shown in Figure 17. Locate sediment trap where it is within reach black iron or steel pipe. Inter- for cleaning. Install in piping system between nally-tinned copper tubing may fuel supply and heater.
- Page 15 INSTALLATION Continued CHECKING GAS CONNECTIONS Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) WARNING: Test all gas pip- 1. Close equipment shutoff valve (see Fig- ure 18). ing and connections, internal 2. Pressurize supply piping system by either and external to unit, for leaks opening propane/LP supply tank valve for after installing or servicing.
- Page 16 INSTALLATION Continued PRESSURE TESTING HEATER GAS Log #1 CONNECTIONS 1. Open equipment shutoff valve (see Figure 18, page 15). 2. Open main gas valve located on or near gas meter for natural gas or open propane/ LP supply tank valve. 3.
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Page 17: Operation
INSTALLATION Continued 4. Place right front log (log #4) on peg of log middle crossover log (log #6) on pegs of #3 and grate prongs as shown in Figure log #1 and #2 (see Figure 24). Place right 23, page 16. crossover log (log #7) on pegs of log #2 and #4 (see Figure 24). - Page 18 OPERATION 1. STOP! Read the safety information on page 17. Continued 2. Make sure equipment shutoff valve is fully LIGHTING open. INSTRUCTIONS 3. Remove control cover log (see Figure 26). 4. Set remote selector switch in the REMOTE WARNING position (see Figure 27). •...
- Page 19 OPERATION TO TURN OFF GAS TO APPLIANCE Continued 1. Press on/off key on remote control and Note: If pilot does not stay lit, contact a turn control knob clockwise to the qualified service person or gas supplier OFF position (see Figure 27, page 18). for repairs.
- Page 20 OPERATION Continued FAHRENHEIT/CELSIUS INDICATOR You can set your hand-held remote control to display the temperature in either Fahrenheit or Celsius. With remote control off, press THER- Display MOSTAT button and MODE button at the same time. This will toggle the display from °F to °C. ON/OFF THERMOSTAT UP/ DOWN...
- Page 21 OPERATION Continued CHILD SAFETY LOCK-OUT Room This function lets you deactivate the remote Temperature control buttons. It is active when the lock icon is lit on the display. To activate, press MODE button and UP ar- Temperature row button at the same time. To deactivate, press again.
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Page 22: Inspecting Heater
INSPECTING HEATER Check pilot flame pattern and burner flame Pilot Burner patterns often. PILOT FLAME PATTERN Figure 38 shows a correct pilot flame pattern. Figure 39 shows an incorrect pilot flame pat- tern. The incorrect pilot flame is not touching Thermocouple the thermocouple. -
Page 23: Specifications
Figure 40 - Injector Holder On Outlet turn off heater and let cool. Remove blockage. Burner Tube Blocked burner flame holes will create soot. SPECIFICATIONS LDL3930NRB LDL3930PRB • Rating (Variable): 26,000/39,000 Btu/hr • Rating (Variable): 26,000/39,000 Btu/hr • Type Gas: Natural •... -
Page 24: Troubleshooting
TROUBLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY... - Page 25 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully 1. Press in control knob fully goes out when control knob pressed in is released 2. Control knob not pressed 2. After ODS/pilot lights, keep in long enough control knob pressed in 30 seconds...
- Page 26 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Slight smoke or odor during 1. Not enough air 1. Check burner for dirt and initial operation debris. If found, clean burner (see Cleaning and Maintenance, page 22) 2. Gas regulator defective 2. Replace gas control 3.
- Page 27 TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas supplier’s instructions.
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Page 28: Service Hints
Usually, we will ask you to return the part to serial numbers of your heater ready. the factory. You can also visit DESA Heating, LLC’s web site at www.desatech.com. PARTS NOT UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s),... -
Page 29: Accessories
For all models. Order when additional rock dealer. If they can not supply these accessories is desired. call DESA Heating, LLC at 1-866-672-6040 for information. You can also write to the address CLEANING KIT - CCK listed on the back page of this manual. -
Page 30: Parts
PARTS MODELS LDL3930NRB AND LDL3930PRB 27-2 27-3 27-4 27-5 27-1 27-6 27-8 27-7 www.desatech.com 121486-01F... - Page 31 PARTS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 28 of this manual. PART NO. DESCRIPTION QTY. Low Profile Base Assembly, Painted • • 102772-01 Dual Burner •...
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Page 32: Warranty
This is DESA Heating, LLC’s exclusive warranty, and to the full extent allowed by law; this express warranty excludes any and all other warranties, express or implied, written or verbal and limits the duration of any and all implied warranties, including warranties of merchantability and fitness for a particular purpose to one (1) year on new products and 30 days on factory reconditioned products from the date of first purchase.