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Istruzioni per l'uso Desa, Modello 80

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6. With the control knob pushed all the way in, press and release the piezo ignitor button. Keep pressing piezo ignitor button until the burner lights. Hold control knob down for a maximum of 15 seconds while attempting ignition. If heater does not ignite, release control knob and wait 3 minutes before attempting reignition. Continue Turning Knob Counterclockwise to MED and HI Piezo Ignitor Button Control Knob LO OFF HI MED LO OFF OFF HI HI LOMED MED Off Low Position Position Figure 4 - Control Knob and Piezo Ignitor Button Locations For more information, visit more information, visit 103385-01F 103385-01F 55 Forr morre iinfforrmattiion,, viisiitt Flame Inside Burner Tube (makes roaring noise) Yellow Flame Blue Flame 7. After ignition, hold control knob down for about 30 seconds. This activates the automatic control system. 8. When burner remains lit, set heater at the desired heat level by slightly depressing the control knob and turning it counterclockwise to the MED or HIGH settings (see Figure 4, page 4). 9. If burner goes out, turn off gas. Slightly depress and turn control knob fully clockwise to OFF. Check fuel supply. If adequate fuel is available, restart heater beginning at step #1, page 4. FLAME PATTERNS Figure 5 shows a correct flame pattern. The burner flame is mostly blue with a slight yellow coloring on the ends. Figure 6 shows an incorrect flame pattern. The flame is mostly yellow. The incorrect flame pattern results from low gas pressure or from flashback. CAUTION: Running heater below specified input rating may cause flashback. During flashback, the burner flame is mostly yellow. The flame will burn inside the burner tube, causing a roaring noise. If flashback occurs, turn heater off. After burner tube cools, restart the heater. Figure 6 - Incorrect Flame Pattern During Flashback 1. Store propane tank(s) in safe manner. Refer to Chapter 5 of Standard for Storage and Handling of Liquefied Petroleum Gases, ANSI/NFPA 58 and/or CAN/CGA B149.2. Follow all local codes. Always store propane tanks outdoors. 2. Place plastic cover caps over brass fittings on inlet connector and hose/regulator assembly. 3. Store in a dry, clean, and safe place. STORAGE CAUTION: Disconnect heater from propane supply tank(s). OPERATION Continued Slight Yellow Coloring on Flame Ends Blue Burner Flame Tube Figure 5 - Correct Flame Pattern at High Position OPERATION To Start Heater (Cont.) Flame Patterns To Stop Heater To Restart Heater STORAGE TO STOP HEATER 1. Tightly close propane supply valve on propane tank(s). Allow heater to burn remaining fuel in hose. 2. Shut off burner. Do this by pushing in the control knob and turning clockwise to the OFF position. TO RESTART HEATER 1. Wait five minutes after stopping heater. 2. Restart heater by following steps under To Start Heater, page 4. 6 MAINTENANCE SPECIFICATIONS REPLACEMENT PARTS MAINTENANCE WARNING: Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns can occur. 1. Keep heater clean. 2. Inspect heater before each use. Check connections for leaks. Apply mixture of liquid soap and water to connections. Bubbles forming show a leak that must be corrected. Correct all leaks at once. 3. Inspect hose/regulator assembly before each use. If hose is highly worn or cut, replace. 4. Have heater inspected yearly by a qualified service person. SPECIFICATIONS Rating (Btu/Hr) High ............................................. 80,000 Medium ....................................... 60,000 Low ............................................. 40,000 Fuel .................................................... Propane Vapor Only Fuel Consumption Gallons/Hour ............................... High 0.87, Low 0.44 Pounds/Hour ................................ High 3.71, Low 1.86 Supply Pressure (To Regulator) Maximum .................................... 200 psi Minimum, for input adjustment ... 20 psi Manifold Pressure (inches of water column) High ............................................. 18 Low ............................................. 23.8 Ignitor Gap......................................... 0.195" Minimum Temperature ...................... -20.F (-29.C) Surrounding Air Temperature Size - L x W x H (Inches) Heater .......................................... 15 x 16 x 20 Carton .......................................... 18 x 18.75 x 20.75 Weight (Pounds) Heater .......................................... 13 Carton .......................................... 17 REPLACEMENT PARTS WARNING: Use only original replacement parts. This heater must use design-specific parts. Do not substitute or use generic parts. Improper replacement parts could cause serious or fatal injuries. This will also protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), either contact your ne...

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