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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
Patent Pending
18", 24" AND 30" VARIAbLE
MANUALLy-CONTROLLED
MODELS
CRL2718PA/NA
CRL3124PA/NA
Biltmore Split Oak, Seasonal Oak and Smoky Mountain Oak Logs
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.
Variable Manually-Controlled Models Also
For more information, visit www.desatech.com
18", 24" AND 30"
THERMOSTATICALLy-CONTROLLED
MODELS
CCL3018PTA/NTA
CCL3924PTA/NTA
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Summary of Contents for Desa CRL3124PA/NA
- Page 1 Patent Pending 18", 24" AND 30" VARIAbLE MANUALLy-CONTROLLED MODELS CRL2718PA/NA CRL3124PA/NA Biltmore Split Oak, Seasonal Oak and Smoky Mountain Oak Logs Variable Manually-Controlled Models 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
Safety ... 2 Product Identification ... 5 Local Codes... 5 Unpacking... 5 Product Features ... 5 Air for Combustion and Ventilation ... 6 Installation ... 8 Operation ... 19 Inspecting Burners... 23 Cleaning and Maintenance ... 23 WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property dam-... - Page 3 WARNING: This product contains and/or generates chemicals known to the state of California to cause cancer or birth defects or other reproduc- tive 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,...
- Page 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).
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Page 5: Product Identification
PRODUCT IDENTIFICATION Log Set Piezo Ignitor Control Knob (Logs May Vary by Model, Seasonal Oak Single Burner Model Shown) Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54*. -
Page 6: Air For Combustion And Ventilation
AIR FOR COMbUSTION AND VENTILATION WARNING: This heater shall not be installed in a room or space unless the required volume of indoor combustion air is provided by the method described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54, the International Fuel Gas Code, or applicable local codes. - Page 7 AIR FOR COMbUSTION AND VENTILATION Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2,560 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.
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Page 8: Installation
NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri- mary heat source. If you have a central heating system, you may run system’s circulating blower... -
Page 9: Check Gas Type
WARNING: Never install the heater • in a bedroom or bathroom unless installed as a vented appliance (Variable Manually- Controlled Models Only) (see page 12) • in a recreational vehicle • where curtains, furniture, clothing or other flammable objects are less than 42" from front, top or sides of heater •... -
Page 10: Mantel Clearances
NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 12. -
Page 11: Floor Clearances
NOTICE: Surface temperatures of adjacent walls and mantels become hot during operation. Walls and mantels above the firebox may become hot to the touch. If installed properly, these temperatures meet the requirement of the national product standard. Follow all minimum clearances shown in this manual. -
Page 12: Safety Information
INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, ap- pliance must be installed only in a solid-fuel burning fireplace with a working flue and con- structed of noncombustible material. For Massachusetts Residents Only: Instal- lation of this gas log set as a vented appliance in the Commonwealth of Massachusetts re- quires the damper be permanently removed... -
Page 13: Connecting To Gas Supply
IMPORTANT: Make sure the heater burners are level. If heater is not level, heater will not work properly. For thermostat models, avoid damage to thermostat bulb. Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in mounting bracket until ready to mount base to floor. - Page 14 CAUTION: Never connect heater directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator be- tween the heater and propane/ LP supply. WARNING: Never connect natural gas fireplace to private (non-utility) gas wells. This gas is commonly known as wellhead gas.
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Page 15: Checking Gas Connections
CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings. PROPANE/LP From External Regulator (11" W.C.** to 14" W.C. Pressure) NATURAL From Gas Meter (5" W.C.** to 10.5" W.C. Pressure) 3" Minimum Approved Flexible Pipe Cap Gas Hose (if allowed... -
Page 16: Installing Logs
INSTALLATION Continued 2. Open main gas valve located on or near gas meter for natural gas or open pro- pane/LP supply tank valve. 3. Make sure control knob of heater is in the OFF position. 4. Check all joints from equipment shutoff valve to thermostat gas valve (Ther- mostat-Controlled Models) or to control valve (Manually-Controlled Models) (see... - Page 17 INSTALLATION Continued 3. Locate pins on bottom of back log (#3). Slide these pins into holes in grate base behind burner (see Figure 21). 4. Locate holes on bottom of crossover log (#4). Slide front hole onto left pin (CCL3924PTA/ NTA) or middle pin (CCL3018PTA/NTA) on middle log (#2) and pin on back log (#3).
- Page 18 Front Log (#1) Figure 25 - Installing Crossover Log #6 (CCL3924PTA/NTA Shown) Single Burner Seasonal Oak Models CRL2718PA/NA, CRL3124PA/NA WARNING: Failure to posi- tion 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.
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Page 19: Operation
MANUALLy-CONTROLLED MODELS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. -
Page 20: To Turn Off Gas To Appliance
MANUALLy-CONTROLLED MODELS 5. Slightly press and turn control knob coun- terclockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 29). Note: You may be running this heater for the first time after hooking up to gas supply. - Page 21 THERMOSTAT-CONTROLLED MODELS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand.
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Page 22: Thermostat Control Operation
The ideal comfort setting will vary by household depending upon the amount of space to be heated, the output of the central heating system, etc. Note: Selecting the HI setting with the control knob will cause the burners to remain fully on, without modulating down in most cases. -
Page 23: Inspecting Burners
Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 33 shows a correct pilot flame pattern. Figure 34 shows an incorrect pilot flame pat- tern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermo- couple to cool. -
Page 24: Service Hints
CLEANING AND MAINTENANCE 1. Shut off unit, including pilot. Allow unit to cool for at least thirty minutes. 2. Inspect burner, pilot and primary air inlet holes on injector holder for dust and dirt (see Figure 35). 3. Blow air through the ports/slots and holes in the burner. -
Page 25: 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 When ignitor button is pressed, there is no spark... - Page 26 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released Burner does light after ODS/ pilot is lit Delayed ignition of burner Burner backfiring during combustion Slight smoke or odor during initial operation TROUbLESHOOTING Continued POSSIBLE CAUSE 1.
- Page 27 OBSERVED PROBLEM Moisture/condensation no- ticed on windows Heater produces a whistling noise when burner is lit White powder residue form- ing within burner box or on adjacent walls or furniture Heater produces a clicking/ ticking noise just after burner is lit or shut off 113097-01L TROUbLESHOOTING Continued...
- Page 28 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 29: Built Metal Fireplace
OPTIONAL POSITIONING OF THERMOSTAT SENSING bULb FOR MASONRY AND FACTORY- BUILT METAL FIREPLACE If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level before the log set comes back on, you may want to reposition the thermostat sensing bulb. -
Page 30: Specifications
OPTIONAL POSITIONING OF THERMOSTAT SENSING thoroughly. Remove the paper backing from the adhesive on back of mounting clip. Press the clip into the new location so that the thermostat sensing bulb will be positioned vertically with the capillary at the bottom (see Figure 43). Slide the thermostat sensing bulb into the clip. -
Page 31: Accessories
Purchase these 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 32: Parts
THERMOSTATICALLY-CONTROLLED BILTMORE SPLIT OAK MODELS CCL3018PTA, CCL3018NTA, CCL3924PTA AND CCL3924NTA PARTS Peg positions vary according to model. www.desatech.com 113097-01L... - Page 33 THERMOSTATICALLY-CONTROLLED BILTMORE SPLIT OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 35 of this manual NO. PART NO. 111340-02 111340-03 111341-02 111341-03 111342-02 111342-03 111343-02 111343-03 111344-01 111344-02...
- Page 34 PARTS VARIABLE MANUALLY-CONTROLLED SEASONAL OAK MODELS CRL2718PA, CRL2718NA, CRL3124PA AND CRL3124NA www.desatech.com 113097-01L...
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Page 35: Replacement Parts
VARIABLE MANUALLY-CONTROLLED SEASONAL OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts, below. PART NUMBER CRL2718PA CRL2718NA CRL3124PA CRL3124NA 113551-01 113551-01 113551-02 113551-02 Back Log (#1) 113552-01 113552-01 113552-02 113552-02 Front Log (#2) 113553-01 113553-01 113553-01 113553-01 Left Crossover Log (#3A) 113554-01 113554-01 113554-01 113554-01 Right Crossover Log (#3B) 102844-01 102844-01 102844-01 102844-01 Lower Bracket... -
Page 36: Warranty
Model (located on product or identification tag) _____________________________ Serial No. (located on product or identification tag) __________________________ Date Purchased __________________________ DESA HEATING, LLC LIMITED WARRANTIES Standard Warranty: DESA Heating, LLC warrants this new product and any parts thereof to be free from defects in material and workmanship for a period of one (1) year from the date of first purchase from an authorized dealer provided the product has been installed, maintained and operated in accordance with DESA Heating, LLC’s warnings and instructions.
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