UNVENTED (VENT-FREE) FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL MANUALLY CONTROLLED MODELS NATURAL GAS (V)L32(HN, LHN) (V)L36(EN, LEN) REMOTE CONTROL READY MODELS NATURAL GAS (V)L36(ZNR, LZNR) (V)L42(ZNR, LZNR) PROPANE/LP GAS (V)L32(HP, LHP) (V)L36(EP, LEP) PROPANE/LP GAS (V)L36(ZPR, LZPR) (V)L42(ZPR, LZPR) 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.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency or the gas supplier. WARNING: FOR USE ONLY WITH A LISTED DECORATIVE TYPE UNVENTED ROOM HEATER. DO NOT BUILD A WOOD FIRE.
SAFETY INFORMATION WARNING: This product contains and/or generates chemicals known to the state of California to cause cancer or birth defects or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.
SAFETY INFORMATION Continued 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.
LOCATING FIREBOX PLANNING Plan where you will install the firebox. This will save time and money later when you install the firebox. Before installation, consider the following: 1. Where the firebox will be located. Allow for wall and ceiling clearances (see Installation Clearances, page 9). 2. Everything needed to complete installation. 3. These models CANNOT be installed in a bedroom unless the maximum Btu rating of the installed vent-free log set is less than 10,000 Btu/hr. 4.
PRODUCT SPECIFICATIONS Continued 36" AND 42" MODELS Note: If only one dimension is shown, the dimension is the same for both 36" and 42" models. Firebox Top View Left Side View with Air Kit Outside Air Kit Location (Optional) Right Side View Front View Figure 2 - Firebox Dimensions (36" and 42" Models) 6 www.desatech.
AIR FOR COMBUSTION AND VENTILATION WARNING: This firebox shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Todayʼs homes are built more energy efficient than ever. New materials, increased insulation and new construction methods help reduce heat loss in homes.
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 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) = 3168 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.
AIR FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Outdoors 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 floor. 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.
INSTALLATION Continued B. Clearances from the top of the firebox opening to the ceiling should not be less than 42 inches. C. When the firebox is installed on carpeting or other combustible material, other than wood flooring, the firebox should be installed on a metal or wood panel extending the full width and depth of the enclosure. D. Clearances from the bottom of firebox to the floor is 0 inches.
INSTALLATION Continued 1. Frame in rough opening. The firebox framing should be constructed of 2 x 4 lumber or heavier. Use dimensions in Table 1 and rough opening layout in Figure 7a. Adjust framing so that firebox flushes with finished wall surface. If installing in a corner, use dimensions in Figures 7b, 7c and 7d for rough opening. 2. Install gas piping to firebox location (see Connecting to Gas Supply, page 16.
INSTALLATION Continued INSTALLING FIREBOX USING OPTIONAL ACCESSORY MANTELS WARNING: A qualified service person must install firebox. Follow all local codes. This firebox may be installed using a cabinet mantel accessory against a wall in your home. The firebox and cabinet mantel can be installed directly on the floor. A trim kit is included with the mantel accessories. 1. Assemble cabinet mantel accessory and the trim kit. Assembly instructions are included with each accessory. 2.
INSTALLATION Continued INSTALLING OPTIONAL BLOWER ACCESSORIES NOTICE: The firebox identification label (including model number, serial number, clearances, etc.) is located in the right side screen pocket area on the front of the firebox. See Figure 25, page 15. NOTICE: If a log set is installed in the firebox, disconnect log set from gas supply and remove from firebox. Contact a qualified service person to do this. Note: Appearance of firebox may vary depending on model.
INSTALLATION Continued 2. Attach green ground wire from power cord to blower housing using screw provided (see Figure 14, page 13). Tighten screws securely with a phillips screwdriver. 3. Place the blower against the lower rear wall of the firebox outer wrapper with the exhaust port directed upward. Depending on your model, you may have to carefully route the blower assembly past the controls and brackets and position the blower inside the back opening.
INSTALLATION Continued HARD-WIRING FIREBOX NOTICE: A qualified electrician must connect electrical wiring to duplex outlet for built-in installation. Follow all local codes. In absence of local codes follow The National Electric Code ANSI/NFPA 70. The “Handy Box” with duplex outlet is provided in the firebox located in the lower right base area. 1. Remove screw holding duplex outlet cover to handy box. Remove duplex outlet. 2. Route electrical cable through strain relief and handy box (see Figure 17). 3.
INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified service person must connect heater to gas supply. Follow all local codes. CAUTION: Never connect propane/LP fireplace directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and propane/LP supply.
INSTALLATION Continued We recommend that you install a sediment trap in supply line as shown in Figures 21 and 22, depending on your model. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.
INSTALLATION Equipment Shutoff Valve Continued PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) 1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator. 2. Cap off open end of gas pipe where equipment shutoff valve was connected. 3.
INSTALLATION Continued INSTALLING LOGS (Models (V)L32HN, (V)L32LHN. (V)L32HP and (V)L32LHP WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. CAUTION: After installation and periodically thereafter, check to ensure that no flame comes in contact with any log. With the heater set to HI, check to see if flames contact any log.
INSTALLATION Continued 3. Slide groove on back of rear log against the rear grate prongs. Make sure the peg on the log is on top (see Figure 30). 4. Place the crossover log on the rear and middle logs. Make sure peg on rear log is in the hole in bottom of crossover log. The crossover log should fit in cutout of middle log (see Figure 31).
INSTALLATION OPERATING FIREPLACE Continued 4. Place top right log onto pins of middle log (see Figure 32, page 20). The bottom of the top log will rest on the middle log as shown in Figures 33 and 34. 5. Place top left log on middle log as shown in Figure 33. 6. Place right and left front logs against grate as shown in Figure 34 to hide the controls.
OPERATING FIREPLACE Continued LIGHTING INSTRUCTIONS WARNING: • If fireplace has glass doors, never operate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside fireplace will cause glass to burst. Make sure there are no obstructions across openings of fireplace. • You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater.
OPERATING FIREPLACE Continued REMOTE-READY MODELS FOR YOUR SAFETY READ BEFORE LIGHTING VARIABLE CONTROL OPERATION The variable control valve can be set to any heat setting and flame height desired, by simply turning the control knob until that setting is attained. Even the lowest setting provides realistic flames and glowing embers from two burners. Selecting higher settings produces greater heat output. This results in increased heating comfort. WARNING: Do not operate heater between locked positions.
LIGHTING INSTRUCTIONS WARNING • If fireplace has glass doors, never operate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside fireplace will cause glass to burst. Make sure there are no obstructions across openings of fireplace. • You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater. NOTICE: During initial operation of new heater, burning logs will give off a paper-burning smell.
Pilot Burner Ignitor Electrode Figure 38 - Propane/LP Pilot (Pilots may vary by model) Pilot Burner Ignitor Electrode Figure 39 - Natural Pilot (Pilots may vary by model) TO TURN OFF GAS TO APPLIANCE Note: All remote control accessories must be purchased separately (see Accessories, page 35). Follow instructions included with the remote control. NOTICE: You must light the pilot before using the hand-held remote control unit. See Lighting Instructions on page 24.
OPERATING FIREPLACE Continued ON/OFF SERIES (MODEL GHRCB) Hold the control button on the hand-held remote until burner turns on. Hold the control button again until burner turns off (see Figure 41). To Lock press both buttons on hand-held remote control until light stops flashing. Handheld remote control is now locked. If the fire is on it will be turned off automatically. In the locked state, the light will not light up when any button is pressed.
INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 43 shows a correct pilot flame pattern. Figure 44 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.
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 these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, pet hair, bedding material, etc. 4. Check the injector holder located at the end of the burner tube again.
TROUBLESHOOTING WARNING: Turn off and unplug 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 When ignitor button is pressed, 1. Ignitor electrode not con- 1. Reconnect ignitor cable there is no spark at ODS/pilot nected to ignitor cable 2.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame goes 1. Control knob not fully 1. Press in control knob fully out when control knob is repressed in leased 2. Control knob not pressed in 2. After ODS/pilot lights, keep control knob pressed in 30 long enough seconds 3. Safety interlock system has 3. Wait one minute for safety interlock system to reset. Repeat been triggered ignition operation 4. Equipment shutoff valve not 4.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner backfiring during com- 1. Burner orifice is clogged or 1. Clean burner (see Cleaning and Maintenance, page 28) or bustion damaged replace burner orifice 2. Damaged burner 2. Replace damaged burner 3. Gas regulator defective 3. Replace gas regulator Yellow flame in front burner dur- 1. Not enough air ing burner combustion 2. Gas regulator defective 1. Check burner(s) for dirt and debris.
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. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors.
SPECIFICATIONS Manually-Controlled Models Btu (Variable) Type Gas Ignition Manifold Pressure Inlet Gas Pressure (in. of water) Maximum Minimum* Shipping Weight * For purpose of input adjustment (V)L32(HN, LHN, HP, LHP) 16,000/27,000 Propane/LP - Natural Piezo 7.9" W.C. - 3.4" W.C. (V)L36(EN, LEN, EP, LEP) 20,000/33,000 Propane/LP - Natural Piezo 7.9" W.C. - 3.4" W.C. 14" - 10.5" 11" - 5" 104 lbs. 14" - 10.5" 11" - 5" 184 lbs.
SERVICE HINTS REPLACEMENT PARTS When Gas Pressure Is Too Low • pilot will not stay lit • burners will have delayed ignition • heater will not produce specified heat • propane/LP gas supply may be low You may feel your gas pressure is too low. If so, contact your local propane/LP or natural gas supplier. Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.
ACCESSORIES BASES NOTICE: All accessories may not be available for all fireplace models. Purchase these firebox accessories from your local dealer. If they can not supply these accessories, call DESAʼs Sales Department at 1-866-672-6040 for information. You can also write to the address listed on the back page of this manual. EQUIPMENT SHUTOFF VALVE GA5010 All Models. Equipment shutoff valve with 1/8" NPT tap. CLEANING KIT - GCK/CCK All Models.
ILLUSTRATED PARTS BREAKDOWN MANUAL MODELS L32HN, L32LHN, L32HP, L32LHP, VL32HN, VL32LHN, VL32HP AND VL32LHP 22 21 17 31 20 23 18 31 36 38 35 19 49 41 39 16 40 37 33 15 34 32 48 10 9 25 26 33 7 5 29 24 27 30 46 47 4 11 28 12 40 38 3 45 6 44 14 42 43 13 2 8 1 36 www.desatech.
PARTS LIST This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on page 34 of this manual. KEY NO.
ILLUSTRATED PARTS BREAKDOWN MANUAL MODELS L36EN, L36LEN, L36EP, L36LEP, VL36EN, VL36LEN, VL36EP AND VL36LEP 18 46 39 41 17 29 41 29-2 29-1 16 15 34 30 34 19 13 33 31 12 36 35 11 37 41 32 14 10 5 23/24 41 27 50 45 22 47 48 4 7 20 21 53 51 6 49 52 9 3 26 40 46 2 28 44 8 42 43 25 1 38 www.desatech.
PARTS LIST This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on page 34 of this manual.
ILLUSTRATED PARTS BREAKDOWN REMOTE-READY MODELS L36ZNR, L36LZNR, L36ZPR, L36LZPR, L42ZNR, L42LZNR, L42ZPR, L42LZPR, VL36ZNR, VL36LZNR, VL36ZPR, VL36LZPR, VL42ZNR, VL42LZNR, VL42ZPR AND VL42LZPR 18 34 17 50 16 31 32 34 15 51 42 38 43 19 13 34 41 14 12 11 33 37 10 39 5 23/24 48 22 4 7 46 20 21 49 6 47 34 9 25 3 26 45 44 41 8 35 2 27 40 1 28 36 29 30 40 www.desatech.
PARTS LIST This list contains replaceable parts used in your firebox. When ordering parts, follow the instructions listed under Replacement Parts on page 34 of this manual. KEY NO.
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST LOG SETS FOR MODELS L36EN, L36LEN, L36EP, L36LEP, VL36EN, VL36LEN, VL36EP AND VL36LEP 5 4 3 1 2 KEY NO. LOG PART NUMBERS DESCRIPTION 1 2 3 4 5 110314-01 110314-02 110314-03 110314-04 110314-05 Front Left Log Front Right Log Middle Log Rear Log Crossover Log QTY 1 1 1 1 1 KEY NO.
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST LOG SETS FOR MODELS L36ZNR, L36LZNR, L36ZPR, L36LZPR, VL36ZNR, VL36LZNR, VL36ZPR, VL36LZPR, L42ZNR, L42LZNR, L42ZPR, L42LZPR, VL42ZNR, L42LZNR, VL42ZPR AND VL42LZPR 4 3 1 2 7 5 6 KEY LOG PART NUMBERS NO.
WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied.