Desa VN2000BTD manual

BLUE FLAME VENT -FREE NA TURAL GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL Save this manual for future reference. VN2000BTD VN2800BTD 20,000 and 30,000 Btu/Hr Thermostatically- Controlled Models WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per- sonal injur[...]

2 104402 BLUE FLAME NA TURAL GAS HEA TER ® Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These incl[...]

3 104402 OWNER’S MANUAL PRODUCT IDENTIFICA TION LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Fuel Gas Code ANS Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protec[...]

4 104402 BLUE FLAME NA TURAL GAS HEA TER ® AIR FOR COMBUSTION AND VENTILA TION Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in. Duri[...]

5 104402 OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless pas[...]

6 104402 BLUE FLAME NA TURAL GAS HEA TER ® Figure 3 - Ventilation Air from Outdoors Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two per- manent openings: one within 12" of t[...]

7 104402 OWNER’S MANUAL 36" 3" FLOOR CEILING Minimum Minimum Of Carpet i Combusti 6" Minimum From Sides Of Heater Left Side Right Side INST ALLA TION Continued CHECK GAS TYPE Use only natural gas. If your gas supply is not natural, do not install heater. Call dealer where you bought heater for proper type heater. INSTALLATION ITEMS[...]

8 104402 BLUE FLAME NA TURAL GAS HEA TER ® 18 3/4" Min. 11" Min. 16" Adjoining Wall Only Insert Mounting Screws Through Last Hole On Each End Floor Model VN2800BTD Model VN2000BTD Figure 8 - Mounting Bracket Clearances WARNING: Maintain minimum clearances shown in Figure 8. If you can, provide greater clear- ances from floor and joi[...]

9 104402 OWNER’S MANUAL Attaching Mounting Bracket To Wall Note: Wall anchors, mounting screws, and spacers are in hardware package. The hard- ware package is provided with heater. Attaching To Wall Stud Method For attaching mounting bracket to wall studs 1. Drill holes at marked locations using 9/64" drill bit. 2. Place mounting bracket ont[...]

10 104402 BLUE FLAME NA TURAL GAS HEA TER ® Pressure Regulator Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Test Gauge Connection * Tee Joint Pipe Nipple Cap 3/8" NPT Pipe Nipple Figure 13 - Gas Connection * A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gaug[...]

11 104402 OWNER’S MANUAL O N POSI T O PO S Figure 14 - Equipment Shutoff Valve Figure 15 - Checking Gas Joints Equipment Shutoff Valve Closed WARNING: Test all gas pip- ing and connections for leaks after installation or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and [...]

12 104402 BLUE FLAME NA TURAL GAS HEA TER ® TO TURN OFF GAS TO APPLIANCE 1. Remove front panel (see Figur e 7, page 8). 2. Follow steps 1 thr ough 5 under Light- ing Instructions . 3. With contr ol knob pr essed in, str ike match. Hold match to pilot until pi- lot lights. 4. Keep contr ol knob pressed in f or 30 seconds after lighting pilot. After[...]

13 104402 OWNER’S MANUAL INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch- ing the thermocouple. This will cause the thermocouple to cool. When the thermo- couple co[...]

14 104402 BLUE FLAME NA TURAL GAS HEA TER ® TROUBLESHOOTING 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 can damage ODS/ pilot unit. POSSIBLE CAUSE 1. Ignitor electrode positioned[...]

15 104402 OWNER’S MANUAL OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burner is lit REMEDY 1. Clean burner (see Cleaning and Mainte- nance , page[...]

16 104402 BLUE FLAME NA TURAL GAS HEA TER ® 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[...]

17 104402 OWNER’S MANUAL TECHNICAL SER VICE You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Techni- cal Service Department at 1-800-323-5190. You can also visit DESA International’s technical service web site at www.desatech.com. SPECIFICA TIONS SER VICE HINTS When Gas Pr[...]

18 104402 BLUE FLAME NA TURAL GAS HEA TER ® 1 2 3 4 5 6 8 9 10 10 11 12 13 14 15 17 19 20 21 22 23 16 24 7 18 ODS/Pilot Assembly ILLUSTRA TED PA R T S BREAKDOWN VN2000BTD VN2800BTD 12-1 12-2[...]

19 104402 OWNER’S MANUAL P AR TS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual. KEY PART NUMBER FOR NO. VN2000BTD VN2800BTD DESCRIPTION QTY. 1 098304-01 098304-01 Screw, #10 x 3/8" 2 2 098742-13 098742-14 Front Panel 1 3 103[...]

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. W ARRANTY INFORMA TION 104402-0[...]