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Istruzioni per l'uso Desa Tech, Modello CGD3930P

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With sheet metal, you must have non combustible material behind it. Non combustible material must extend at least 8" up (for all models). If non combustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). See chart below and Figure 5 for minimum clearances. 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 13. Heat Resistant Material (A) Non-Combustible Requirements for Material Distance (A) Safe Installation 12" or more Non combustible material okay. Between 8" and 12" 24" or 30" Models: Install fireplace hood acessory (GA6050 or GA6052, see Accessories,page 33). 18" Model: Non combustible material okay. Less than 8" Non combustible material must be extended to at least 8". See Between 8" and 12",above. If you cannot extend material, you must operate heater with flue damper open. 10 Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace INSTALLING 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. With sheet metal, you must have non combustible material behind it. Non combustible material must extend at least 8 inches up (for all models). If non combustible material is less than 12", you must install the fireplace hood accessory (24" and 30" models only). Even if non combustible material is more than 12", you may need the hood accessory to deflect heat away from your mantel shelf. See chart below and Figures 6 and 7 for minimum clearances. 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 13. Non-Combustible Material Distance (A) Requirements for Safe Installation 12" or more Between 8" and 12" Less than 8" Non combustible material okay. 24" or 30" Models: Install fireplace hood acessory (GA6050 or GA6052, see Accessories,page 33). 18" Model: Non combustable material okay. Non combustible material must be extended to at least 8". See Between 8" and 12",above. If you cannot extend material, you must operate heater with flue damper open. Mantel Clearances If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6). Underside of Mantel Shelf Mantel Shelf 12" (A) 20" 241/2" 271/2" 30" 8" 14" 163/4" 181/2" 20" 2 1/2" 6" 8" 10" All minimum distances are in inches Minimum Non- Combustible Log Set Material 24"/30" Models 18" Model Top of Fireplace Opening Minimum Non-Distances to Combustible Underside of Material Height Mantel Figure 6 - Minimum Mantel Clearances Without Using Hood If above minimum clearances are not met, you must have a hood. Follow minimum clearances shown in Figure 7 when using hood. Continued 11 INSTALLING Continued Mantel Shelf Underside of Mantel Shelf All minimum distances are in inchesMinimum Non- Combustible 8" Min. 12" 15" 18" 20" 2 1/2" 6" 8" 10" 12" Log Set Material 18", 24", 30" Models Top of Fireplace Opening Hood Distances to (GA6050, GA6052) Underside of Mantel Figure 7 - Minimum Mantel Clearances When Using Hood If your installation does not meet the above minimum clearances, you must: • operate the logs only with the flue damper open, OR • raise the mantel to an acceptable height, OR • 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). 14" Min. Combustible Material Non-Combustible Material Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level B. If combustible materials are less than 14" to the fireplace, you must install appliance at least 5" above the combustible flooring (see Figure 9). Hearth 5" Min. Material Combustible Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring 12 INSTALLING 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. 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. State or local codes do not permit vent-free operation. 3. You prefer vented operation. If reasons number 1 or 2 above apply to you, you must permanently open chimney flue damper. You must install the damper clamp accessory (to order, see Accessories, page 33). This will insure vented operation (see Figure 10). The damper clamp will keep damper open. Installation instructions are included with clamp accessor...