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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
18" AND 24" VARIAbLE MANUALLy-CONTROLLED
MODELS HL18(N,P), HL24(N,P), VSb18(N,P) AND VSb24(N,P)
Also Design-Certified as Vented Decorative Appliance
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
Patent Pending
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Table of Contents
Related Manuals for Desa HL18N
Summary of Contents for Desa HL18N
- Page 1 UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL Patent Pending 18" AND 24" VARIAbLE MANUALLy-CONTROLLED MODELS HL18(N,P), HL24(N,P), VSb18(N,P) AND VSb24(N,P) Also Design-Certified as Vented Decorative Appliance 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 Troubleshooting ..........20 Product Identification ........... 4 Specifications ............ 24 Local Codes............5 Technical Service..........24 Unpacking............5 Service Hints ............. 24 Product Features ..........5 Replacement Parts ..........24 Air For Combustion and Ventilation ..... 5 Accessories ............ - Page 3 SAFETy Continued WARNING: This product WARNING: Do not allow fans contains and/or generates to blow directly into the fireplace. chemicals known to the State Avoid any drafts that alter burner of California to cause cancer or flame patterns. Ceiling fans can birth defects or other reproduc- create drafts that alter burner tive harm.
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Page 4: Product Identification
SAFETy Continued 2. Do not place propane/LP supply tank(s) 11. Before using furniture polish, wax, carpet inside any structure. Locate propane/LP cleaner or similar products, turn heater supply tank(s) outdoors (propane/LP units off. If heated, the vapors from these prod- only). -
Page 5: Local Codes
3. Check heater for any shipping damage. If information. heater is damaged call DESA Heating, LLC at 1-866-672-6040 for replacement parts 1. Remove log and heater base assembly before returning to dealer. - Page 6 AIR FOR COMbUSTION AND VENTILATION Continued Exhaust fans, fireplaces, clothes dryers and 1,000 Btu per hour (4.8 m per kw) of the ag- gregate input rating of all appliances installed fuel burning appliances draw air from the in that space and an unconfined space as a house to operate.
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Page 7: Ventilation Air
AIR FOR COMbUSTION AND VENTILATION Continued Example: ceiling and one within 12" of the floor on the 40,000 wall connecting the two spaces (see options Gas water heater __________ Btu/Hr 31,500 1 and 2, Figure 2). You can also remove door Vent-free fireplace + _________ Btu/Hr 71,500... -
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 NOTICE: Manual control heaters (Vent-Free Operation Only) may be used as a vented product. If so, you must always run heater WARNING: Maintain the with chimney flue damper open. minimum clearances. If you can, If running heater with damper provide greater clearances from open, noncombustible material floor, ceiling and adjoining wall.
- Page 10 INSTALLATION Continued IMPORTANT: If you cannot meet these mini- Determining Minimum Mantel Clearance mum clearances, you must operate heater when Using a Hood with chimney flue damper open. Go to Install- If minimum clearances in Figure 6 are not met, ing Damper Clamp Accessory for Vented you must have a hood.
- Page 11 INSTALLATION Continued FLOOR CLEARANCES If reasons number 1 or 2 apply to you, you must permanently open chimney flue damper. A. If installing appliance on floor level, you You must install the damper clamp accessory must maintain the minimum distance of (to order, see Accessories, page 25).
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Page 12: Safety Information
INSTALLATION Continued INSTALLING HEATER BASE gas hose to gas regulator of heater (see Figure 11). ASSEMBLY IMPORTANT: Hold gas regulator with CAUTION: Do not remove the wrench when connecting flexible gas hose. data plates attached to the heater 2. Locate masonry screws in hardware package. - Page 13 INSTALLATION Continued CONNECTING TO GAS SUppLY ing gas pressure, heater regulator damage could occur. Install external regulator with WARNING: This appliance vent pointing down as shown in Figure 13. Pointing vent down protects it from freezing requires a 1/2" NPT (National rain or sleet.
- Page 14 INSTALLATION Continued We recommend that you install sediment CAUTION: For propane/LP trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach units, make sure external regula- for cleaning. Install in piping system between tor has been installed between fuel supply and heater.
- Page 15 INSTALLATION Continued 3. Check all joints from gas meter (natural INSTALLING LOGS gas) or propane/LP supply to equipment WARNING: Failure to posi- shutoff valve (see Figure 16 or 17). Apply a commercial leak detection solution to all tion the parts in accordance joints.
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Page 16: Operating Heater
INSTALLATION Continued 2. Place one piece log over burner so that 3. Place crossover log onto flat surfaces of the back sits on back tabs and front rests one piece log (see Figure 18, page 15). on front tabs and grate fingers (see Figure 4. - Page 17 OPERATION Continued 3. Press in and turn control knob clockwise WARNING: Do not operate to the OFF position. heater between PILOT and HIGH 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the positions.
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Page 18: Inspecting Burners
INSPECTING bURNERS Check pilot flame pattern and burner flame Thermocouple patterns often. Pilot Burner pILOT FLAME pATTERN Figure 21 shows a correct pilot flame pattern. Figure 22 shows an incorrect pilot flame pat- tern. The incorrect pilot flame is not touching the thermocouple. - Page 19 CLEANING AND MAINTENANCE Continued We also recommend that you keep the burner 5. Blow air into the primary air holes on the tube and pilot assembly clean and free of dust injector holder. and dirt. To clean these parts we recommend 6.
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Page 20: Troubleshooting
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... - Page 21 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 in 2. After ODS/pilot lights, keep long enough control knob pressed in 30 seconds...
- Page 22 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 18) 2. Gas regulator defective 2. Replace gas regulator 3.
- Page 23 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 24: Specifications
Parts Central call DESA Heating, LLC at 1-866-672-6040. (see page 29) or call DESA Heating, LLC at 1-866-672-6040 for referral information. A list When calling DESA Heating, LLC, have of authorized dealers can be found by visiting ready www.desatech.com. -
Page 25: Accessories
Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central or call DESA Heating, LLC at 1-866-672-6040 for information. You can also write to the address listed on the back page of this manual. -
Page 26: Parts
PARTS VARIABLE MANUALLY-CONTROLLED HL18P, HL18N, VSB18P, VSB18N, HL24P, HL24N, VSB24P AND VSB24N www.desatech.com 122136-01C... - Page 27 PARTS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. NO. PART NO. DESCRIpTION QTY. 120804-01DD Log Base • • • • 120783-01 Cast Iron Grate •...
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Page 28: 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 four (4) years on new products and 30 days on factory reconditioned products from the date of first purchase.