ROYAL ENGLISH OAK AND WINCHESTER OAK UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL Patent Pending 18" AND 24" VARIABLE MANUALLY-CONTROLLED MODELS CGS2718PA, CGS2718NA, CGS3124PA, CGS3124NA SGS3124PA, SGS3124NA 18" AND 24" THERMOSTATICALLY-CONTROLLED MODELS CLD3018PTA, CLD3018NTA CLD3924PTB, CLD3924NTB 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 explosio
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: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built fireplace or in a listed ventless firebox enclosure.
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 fireplace. Improper use of this fireplace 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. To prevent performance problems, the use of a propane/LP tank of less than 100 lbs. capacity is not recommended (propane/LP units only). 4.
LOCAL CODES PRODUCT FEATURES 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/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 models are not permitted.
AIR FOR COMBUSTION AND VENTILATION Continued Exhaust fans, fireplaces, clothes dryers and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances. PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code. ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.
AIR FOR COMBUSTION AND VENTILATION Continued Example: 40,000 Btu/Hr Gas water heater __________ 31,500 Btu/Hr Vent-free fireplace + __________ 71,500 Btu/Hr Total = __________ 4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
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 primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circulate the heat throughout the house. In the event of a power outage, you can use this heater as your primary heat source. WARNING: A qualified service person must install heater. Follow all local codes.
INSTALLATION Continued MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size 18", 24" Side Wall 16" Ceiling 42" LOG SIZING REQUIREMENTS Minimum Firebox Size Log Front Rear Size Height Depth Width Width* 18" 17" 14" 24" 20" 24" 17" 14" 28" 21" *Measured at 14" Depth Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127listed manufactured fireplace or certified vent-free firebox. Minimum Clearances For Side Combustible Material, Side Wall and Ceiling A.
INSTALLATION MANTEL CLEARANCES Continued IMPORTANT: If you cannot meet these minimum clearances, you must operate heater with chimney flue damper open. Go to Installing Damper Clamp Accessory for Vented Operation, page 12. If Using Mantel You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncombustible material behind it.
INSTALLATION Continued NOTICE: If your installation does not meet the minimum clearances shown, you must do one of the following: • operate the logs only with the flue damper open • raise the mantel to an acceptable height • remove the mantel FLOOR CLEARANCES A. If installing appliance on the floor level, you must maintain the minimum distance of 14" to combustibles (see Figure 8). B.
INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION 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. If your heater is a manually-controlled model, you may use this heater as a vented product. There are three reasons for operating your heater in the vented mode. 1. The fireplace does not meet the clearance to combustibles requirements for vent-free operation. 2.
INSTALLATION Masonry Screw Continued 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. See Optional Positioning Of Thermostat Sensing Bulb, page 29.
INSTALLATION Continued Installation Items Needed Before installing heater, make sure you have the items listed below. • external regulator (supplied by installer) • piping (check local codes) • sealant (resistant to propane/LP gas) • equipment shutoff valve * • test gauge connection * • sediment trap • tee joint • pipe wrench * A CSA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection.
INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections , internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a commercial leak detection solution to all joints. Bubbles forming show a leak. Correct all leaks at once. CAUTION: For propane/LP units, make sure external regulator has been installed between propane/LP supply and heater.
INSTALLATION Continued Pressure Testing Heater Gas Connections 1. Open equipment shutoff valve (see Figure 15, page 15). 2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve. 3. Make sure control knob of heater is in the OFF position. 4. Check all joints from gas meter (natural gas) or propane/LP supply to equipment shutoff valve (see Figure 16 or 17, page 15). Apply a commercial leak detection solution to all joints. Bubbles forming show a leak. 5.
INSTALLATION 1. Place the base of the middle log (#1) in the U-shaped slots of the grate base. The cutout on the right of the middle log should fit over the burner (see Figure 21). Make sure the front of the middle log is resting on the tabs of the grate base and the cutout area is centered over the burner “U” bend. 2. Locate pegs on the bottom of back log (#2). Slide these pegs into the holes in the grate base behind the burner (see Figure 22). 3. Slide log (#3) over left end of log (#4).
INSTALLATION Crossover Log (#7) Continued 4. Place crossover log (#5) onto the pin (left) on middle log (#1) and onto the pin on front left log (#3) (see Figure 24). 5. Place crossover log #6 onto the pin (right) on middle log (#1) and onto the pin on back log (#2) (see Figure 24). 6. Place crossover log (#7) onto pin on crossover log #6 and pin on right front log (#4) (see Figure 25). 5. Add lava rock around base of heater if desired. Do not place any lava rock on logs or burner.
OPERATING HEATER 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 HEATER MANUAL LIGHTING PROCEDURE Continued Ignitor Electrode Pilot Burner Thermocouple Propane/LP Ignitor Electrode Pilot Burner 1. Follow steps 1 through 5 under Lighting Instructions, page 19. 2. Depress control knob and light pilot with match. 3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Now follow step 8 under Lighting Instructions, page 19.
OPERATING HEATER 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 HEATER Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise position. to the OFF Shutting Off Burners Only (pilot stays lit) to the Turn control knob clockwise PILOT position.
CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner 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, bedding material, pet hair, etc. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.
CLEANING AND MAINTENANCE Continued LOGS • If you remove logs for cleaning, refer to Installing Logs, page 16, to properly replace logs. • Replace log(s) if broken or chipped (dime-sized or larger). BURNER PRIMARY AIR HOLES Air is drawn into the burner through the 8 holes in the brass fitting at the entrance to the burner. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean as necessary. Blocked air holes will create soot.
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 pressed 1. Press in control knob fully in out when control knob is re2. Control knob not pressed in 2. After ODS/pilot lights, keep conleased long enough trol knob pressed in 30 seconds 3. Safety interlock system has 3. Wait one minute for safety inbeen triggered terlock system to reset. Repeat ignition operation 4. Equipment shutoff valve not 4.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Slight smoke or odor during initial 1. Not enough air operation 1. Check burner for dirt and debris. If found, clean burner (see Cleaning and Maintenance, page 23) 2. Gas regulator defective 2. Replace gas regulator 3. Residues from manufacturing 3. Problem will stop after a few processes and logs curing hours of operation Moisture/condensation noticed 1. Not enough combustion/ven- 1.
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. Operating heater where impurities in air exist may create odors.
OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB FOR MASONRY AND FACTORYBUILT METAL FIREPLACE Figure 35 - Adhesive-backed Mounting Clip Thermostat Screw 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 Thermostat to reposition the thermostat sensing bulb. Sensing Capillary Bulb The thermostat sensing bulb is located near the gas valve assembly on the mounting bracket.
OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB Thermostat Sensing Bulb Continued 4. The mounting clip must be a minimum of 3" from bottom of fireplace to prevent crimping of capillary. Once you have decided on a location, clean the area 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 40).
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 Productsʼ 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 For all models. Equipment shutoff valve with 1/8" NPT tap. Fits 1/2" NPT pipe. DAMPER CLAMP - GA6080 (Not Shown) For variably-controlled models.
ILLUSTRATED PARTS BREAKDOWN VARIABLE MANUALLY-CONTROLLED WINCHESTER OAK MODELS CGS2718NA, CGS2718PA CGS3124NA, CGS3124PA SGS3124NA, SGS3124PA 4 3 2 21 1 18 19 20 11 12 13 9 8 6 22 22 10 14 5 19 7 17 32 20 16 22 15 www.desatech.
PARTS LIST VARIABLE MANUALLY-CONTROLLED WINCHESTER OAK MODELS 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. KEY NO.
ILLUSTRATED PARTS BREAKDOWN THERMOSTATICALLY-CONTROLLED ROYAL ENGLISH OAK MODELS CLD3924NTB, CLD3924PTB CLD3018NTA, CLD3018PTA 2 6 7 5 4 1 3 21 13 23 19 20 12 11 14 24 10 15 8 9 22 16 22 22 17 25 18 20 22 22 34 www.desatech.
PARTS LIST THERMOSTATICALLY-CONTROLLED ROYAL ENGLISH OAK MODELS 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. KEY PART NUMBER 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.