Desa 103426-01 manuale d’uso

DESA INTERNA TIONAL UNVENTED (VENT -FREE) NA TURAL GAS LOG HEA TER Manually Control Models Also Designed Certified as V ented Decorative Appliance This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes. * Aftermarket: Completion of sale, not for purpose of resale, from the manufac[...]

2 103426 UNVENTED NA TURAL GAS LOG HEA TER WARNING: Any change to this heater or its controls can be dan- gerous. 1. This appliance is only for use with the type of gas indicated on the rating plate. SAFETY INFORMA TION DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re- sembl[...]

3 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS PRODUCT IDENTIFICA TION Figure 1 - Split Oak Design Model Left Front Branch Control Knob Rear Log Base Assembly Front Burner Piezo Ignitor Rear Burner Crossover Log Top Middle Log Bottom Middle Log Figure 2 - Standard Oak Design Model Control Knob Right Front Branch B[...]

4 103426 UNVENTED NA TURAL GAS LOG HEA TER PROVIDING ADEQUATE VENTILATION The following is exerpts from National Fuel Gas Code. NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustion and Ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1. Unusually Tight Construction; 2. Uncon- fined Space; 3. Confine[...]

5 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS 4 . Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used. __________ Btu/Hr (maximum the space can support) __________ Btu/Hr (actual amount of Btu/Hr used) Example: 51,200 Btu/Hr (maximum the space can support) 73,000 Btu/Hr (actual [...]

6 103426 UNVENTED NA TURAL GAS LOG HEA TER 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 8. Minimum N[...]

7 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS Non-Combustible Requirements for Material Distance (A) Safe Installation 12" or more Non combustible material OK. Between 8" and 12" 24" or 30" Models: Install fireplace hood accessory (GA6050 or GA6052, see Accessories, page 23). 18" Mod[...]

8 103426 UNVENTED NA TURAL GAS LOG HEA TER INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, appli- ance 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[...]

9 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS INST ALLA TION Continued INSTALLING HEATER BASE ASSEMBLY WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak. WARNING: If installing in a sunken fireplace, special care is neede[...]

10 103426 UNVENTED NA TURAL GAS LOG HEA TER 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. Hold gas regulat[...]

11 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once. WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all[...]

12 103426 UNVENTED NA TURAL GAS LOG HEA TER Figure 21 - Installing Front Logs (#1L and #1R) Grate Prongs Metal Grate Bar Front Log (#1L) Notch Front Log (#1R) INST ALLA TION Continued Continued 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[...]

13 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS INST ALLA TION Continued 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 in- jury. INSTALLING LOGS (Split Oak Design Models) Botto[...]

14 103426 UNVENTED NA TURAL GAS LOG HEA TER Thermocouple Figure 27 - Pilot Ignitor Electrode Pilot Burner 8. T urn control knob counter clockwise C-clockwise to desired heating le vel. The bur ners should light. Set control knob to any heat lev el between HI and LO. 1. STOP! Read the safety inf ormation above. 2. Make sur e manual shutoff valve is [...]

15 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS TO TURN OFF GAS TO APPLIANCE 1. Follow steps 1 thr ough 5 under Light- ing Instructions , page 14. 2. Depress contr ol knob and light pilot with match. 3. Keep contr ol knob pressed in f or 30 seconds after lighting pilot. After 30 seconds, release contr ol knob . No[...]

16 103426 UNVENTED NA TURAL GAS LOG HEA TER INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 30 shows a correct pilot flame pat- tern. Figure 31 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When th[...]

17 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS FRONT BURNER FLAME PATTERN Figure 32 shows correct front burner flame pattern. Figure 33 shows incorrect front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame. If front burner flame pattern is incorrect, as shown in [...]

18 103426 UNVENTED NA TURAL GAS LOG HEA TER Continued TROUBLESHOOTING Note: All troubleshooting items are listed in order of operation. WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified ser- vice person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This[...]

19 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS OBSERVED PROBLEM One or both burners do not light after ODS/ pilot is lit Delayed ignition of one or both burners Burner backfiring during combustion Yellow flame in front burner during burner combustion Slight smoke or odor during initial opera- tion Heater produces[...]

20 103426 UNVENTED NA TURAL GAS LOG HEA TER 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. •[...]

21 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS OPTIONAL POSITIONING OF THERMOST A T 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 therm[...]

22 103426 UNVENTED NA TURAL GAS LOG HEA TER Note: Use only original replacement parts. This will 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), call DESA International’s Techni- cal Service Department at 1-800-3[...]

23 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS LAVA ROCK - GA6060 For all models. Order when additional rock is desired. (3 lb. bag) DAMPER CLAMP - GA6080 For manually controlled models. Perma- nently opens chimney flue damper for vented operation. FB32C (CIRCULATING), FB32NC (NON-CIRCULATING) SERIES For 18"[...]

24 103426 UNVENTED NA TURAL GAS LOG HEA TER ILLUSTRA TED PA R T S BREAKDOWN Variable Manually- Controlled Models 18 20 19 26 25 21 21 27 28 6 7 8 29 29 25 10 9 11 12 13 15 22 23 27-1 27-2 24 7-1 7-2 14 16 17 4 5 3 2 1L 1R VS18NVB CFS18NVB VS24NVB CFS24NVB VS30NVB CFS30NVB[...]

25 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS P ARTS LIST Variable Manually-Controlled Split Oak Models This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. KEY PART NUMBER FOR NO. VS18NVB/CFS18NVB VS24NVB[...]

26 103426 UNVENTED NA TURAL GAS LOG HEA TER ILLUSTRA TED PA R T S BREAKDOWN Thermostat- Controlled Models 31 6 25 6 7 8 9 10 11 8 8 29 13 12 13 14 15 16 18 17 19 24 26 27 7-1 7-2 29 22 23 21 28 20 30 10-1 10-2 4 5 3 2 1R 1L VS18NTA VS24NTA VS30NTA[...]

27 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS P ARTS LIST Thermostat-Controlled Split Oak Models This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. KEY PART NUMBER FOR NO. VS18NTA VS24NTA VS30NTA DESCRIP[...]

28 103426 UNVENTED NA TURAL GAS LOG HEA TER ILLUSTRA TED PA R T S BREAKDOWN Variable Manually-Controlled Models VL18NV VL24NV VL30NV 18 20 19 26 25 21 21 27 28 6 7 8 29 29 25 10 9 11 12 13 15 22 23 27-1 27-2 24 7-1 7-2 14 16 17 3 1 2 4 5[...]

29 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS P ARTS LIST Variable Manually-Controlled American Oak Models This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. KEY PART NUMBER FOR NO. VL18NV VL24NV VL30NV [...]

30 103426 UNVENTED NA TURAL GAS LOG HEA TER NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ____________[...]

31 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18", 24" AND 30" MODELS NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________________________________________________[...]

LIMITED WARRANTY VENT-FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for three (3) years and five (5) years on stainless steel burners from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all appli[...]