Instruction/ maintenance manual of the product CGD3018N Desa Tech
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Save this manual for future reference. 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.
2 102986 CONTENTS SECTION PAGE SAFETY INFORMA TION W ARNINGS 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.
3 102986 SAFETY INFORMA TION Continued W ARNINGS Continued WARNING: Any change to this heater or its controls can be dangerous. 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.
4 102986 PRODUCT IDENTIFICA TION Figure 1 - Vent-Free Gas Log Heater LOCAL CODES 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, also known as NFPA 54*.
5 102986 AIR FOR COMBUSTION AND VENTILA TION W ARNING This heater shall not be installed in a confined space 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.
6 102986 AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space.
7 102986 AIR FOR COMBUSTION AND VENTILA TION Continued W ARNING If the area in which the heater may be operated is smaller than that defined as an unconfined space, provide adequate combus- tion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.
8 102986 INST ALLING NOTICE A qualified service person must install heater. Follow all local codes. W ARNING Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creosote, ashes and loose paint by a qualified chimney cleaner.
9 102986 INSTALLATION AND CLEARANCES (Vent-Free Operation Only) W ARNING Maintain the minimum clearances. If you can, provide greater clear- ances from floor, ceiling, and adjoining wall. INST ALLING Continued Carefully follow the instructions below. This will ensure safe installation into a masonry or U.
10 102986 INST ALLING Continued NOTICE You may use this heater as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, non-combustible material above fire- place opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 13.
11 102986 INST ALLING Continued Minimum Non Combustible Material Clearances If Using Mantel You must have non combustible material(s) above the fireplace opening. Non combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick.
12 102986 14" Min. Combustible Material Non-Combustible Material Hearth 5" Min. Combustible Material Minimum Non- Combustible Material 8" Min.
13 102986 INST ALLING 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 non combustible material.
14 102986 INST ALLING Continued INSTALLING HEATER BASE ASSEMBLY IMPORTANT: Make sure the heater burner is level. If heater is not level, heater will not work properly.
15 102986 INST ALLING Continued Masonry Screw Mounting Bracket Heater Gas Regulator Flexible Gas Hose (if allowed by local codes) Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator Fittin.
16 102986 INST ALLING Continued CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. Installation Items Needed Before installing heater, make sure you have the items listed below.
17 102986 Tee Joint Pipe Nipple Cap 3" Minimum Sediment Trap Gas Regulator From Gas Meter (5" W.C.** to 10.5" W.C. Pressure) A.G.A. Design-Certified Manual Shutoff Valve With 1/8" NPT Tap* Approved Flexible Gas Hose (if allowed by local codes) CAUTION Avoid damage to regulator.
18 102986 3. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
19 102986 3 INST ALLING Continued W ARNING 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. INSTALLING LOGS Each log is marked with a number.
20 102986 OPERA TING HEA TER 1. STOP! Read the safety information above. 2. Make sure manual shutoff valve is fully open. 3. Press in and turn control knob clockwise Clockwise to the OFF position. 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor.
21 102986 OPERA TING HEA TER Continued T O TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Press in and turn control knob clockwise Clockwise to the HIGH position. 2. Turn control knob clockwise Clockwise to the pilot position. 3. Press in control knob and turn clockwise Clockwise to the OFF position.
22 102986 INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 22 shows a correct pilot flame pattern. Figure 23 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple.
23 102986 CLEANING AND MAINTENANCE W ARNING Turn off heater and let cool before cleaning. CAUTION You must keep control areas, burner, and circulating air passage- ways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person.
24 102986 TROUBLE- SHOOTING Continued REMEDY 1. Turn on gas supply or open manual shutoff valve 2. Turn control knob to PILOT position 3 . Press in control knob while in PILOT position 4. Continue holding down control knob. Repeat igniting operation until air is removed 5.
25 102986 OBSERVED PROBLEM Burner does light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Moisture/condensa- tion noticed on windows Heater produces a whistling noise when burner is lit REMEDY 1.
26 102986 TROUBLE- SHOOTING Continued W ARNING 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.
27 102986 TECHNICAL SERVICE You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564).
28 102986 Note: Use only original replacement parts. This will protect your warranty cover- age for parts replaced under warranty. Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replace- ment part(s), call DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564).
29 102986 ACCESSORIES Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, call DESA International’s Sales Department at 1-800-972-7879 for referral information. You can also write to the address listed on the back page of this manual.
30 102986 ILLUSTRA TED P ARTS BREAKDOWN CGD3018N CGD3924N CGD3930N 5 3 2 1 4 22 11 12 13 21 8 22 22 6 7 10 9 16 15 17 19 23 18 14 19 24 20-2 20-1 20 18 25.
31 102986 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. P ARTS LIST KEY CGD3018N CGD3924N CGD3930N NO. PART NUMBER PART NUMBER PART NUMBER DESCRIPTION QTY.
LIMITED WARRANTY COMFORT GLOW VENT-FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for one (1) year from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.
An important point after buying a device Desa Tech CGD3018N (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa Tech CGD3018N yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa Tech CGD3018N - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa Tech CGD3018N you will learn all the available features of the product, as well as information on its operation. The information that you get Desa Tech CGD3018N will certainly help you make a decision on the purchase.
If you already are a holder of Desa Tech CGD3018N, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa Tech CGD3018N.
However, one of the most important roles played by the user manual is to help in solving problems with Desa Tech CGD3018N. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa Tech CGD3018N along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
