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Desa VN2000BTA manual

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Table of contents for the manual

  • Page 1

    VENT -FREE NA TURAL GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL Save this manual for future reference. Models: VN2000BA, VN2000BT A, and VN2800BT A ® 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 ga[...]

  • Page 2

    2 099570 CONTENTS SECTION PAGE Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking ......................[...]

  • Page 3

    3 099570 SAFETY INFORMA TION Continued WARNING ICON G 001 W ARNINGS Continued WARNING: Any change to this heater or its controls can be dangerous. 1. Use only natural gas. Do not convert heater to use different fuel type. 2. If you smell gas • shut off gas supply • do not try to light any appliance • do not touch any electrical switch; do not[...]

  • Page 4

    4 099570 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 ANSI Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association[...]

  • Page 5

    5 099570 FRESH AIR FOR COMBUSTION AND VENTILA TION WARNING ICON G 001 W ARNING This heater must have fresh air for proper operation. If not, poor fuel combustion could result. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever.[...]

  • Page 6

    6 099570 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued WARNING ICON G 001 W ARNING You must provide additional ventilation air in a confined space. 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 th[...]

  • Page 7

    7 099570 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wal[...]

  • Page 8

    8 099570 FRESH AIR FOR COMBUSTION AND VENTILA TION Continued VENTILATION AIR (Continued) Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two perma- nent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or space[...]

  • Page 9

    9 099570 INST ALLING T O W ALL NOTICE A qualified service person must install heater. Follow all local codes. Continued WARNING ICON G 001 CAUTION If you install the heater in a home garage • heater pilot and burner must be at least 18 inches above floor • locate heater where moving vehicle will not hit it CHECK GAS TYPE Use only natural gas. I[...]

  • Page 10

    10 099570 36" 3" FLOOR CEILING Minimum Minimum To Top Surface Of Carpeting, Tile Or Other Combustible Material 6" Minimum From Sides Of Heater Left Side Right Side Figure 5 - Attaching Thermostat Sensing Bulb Clamp Thermostat Sensing Bulb THERMOSTAT SENSING BULB (Models VN2000BTA and VN2800BTA Only) The thermostat sensing bulb has be[...]

  • Page 11

    11 099570 INSTALLING HEATER TO WALL Mounting Bracket The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel. Mounting Bracket Figure 6 - Mounting Bracket Figure 7 - Removing Front Panel Of Heater Methods For Attaching Mounting Bracket To Wall Only use last hole on each [...]

  • Page 12

    12 099570 18 3/4" Min. 11" Min. 16" 18 3/4" Min. 7 1/4" Min. Adjoining Wall 16" Adjoining Wall Only Insert Mounting Screws Through Last Hole On Each End Only Insert Mounting Screws Through Last Hole On Each End Floor Floor Marking Screw Locations 1. Tape mounting bracket to wall where heater will be located. Make sure [...]

  • Page 13

    13 099570 4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT : Do not hammer key! For thick walls (over 1/2" thick) or solid walls, do not pop open wings. Figure 12 - Installing Bottom Mounting Screws Figure 10 - Popping Open Anchor Wings For Thin Walls 5. Place mounti[...]

  • Page 14

    14 099570 CONNECTING T O GAS SUPPL Y NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. WARNING ICON G 001 W ARNING Never connect heater to private (non-utility) gas well. This gas is commonly known as well-head gas. Typical Pipe Diameters VN2000BA or VN2000BTA 3/8" or greater VN2800BTA 1/2" or gr[...]

  • Page 15

    15 099570 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Pressure Regulator Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Test Gauge Connection * Tee Joint Pipe Nipple Cap Heater Cabinet 1/2" NPT Pipe Nipple Figure 13 - Gas Connection * An A.G.A. design certified manual shut[...]

  • Page 16

    16 099570 ON POSITION OFF POSITION 4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 5. Correct all leaks at once. Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 14). 2. Pressurize supply piping system by either using compresse[...]

  • Page 17

    17 099570 PILOT LO OFF HI IGNITOR OPERA TING HEA TER Models VN2000BT A and VN2800BT A A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and wil[...]

  • Page 18

    18 099570 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 17. If you don’t smell gas, go to the next step. 5. Turn control knob counterclockwise C-clockwise to the PILOT position. Press in control knob for five (5) seco[...]

  • Page 19

    19 099570 T O TURN OFF GAS TO APPLIANCE OPERA TING HEA TER Models VN2000BT A and VN2800BT A Continued Shutting Off Heater 1. Turn control knob clockwise Clockwise to the OFF position. 2. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise Clockwise to [...]

  • Page 20

    20 099570 OFF HIGH PILOT LOW IGNITOR OPERA TING HEA TER Model VN2000BA FOR YOUR SAFETY READ BEFORE LIGHTING A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is he[...]

  • Page 21

    21 099570 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 20. If you don’t smell gas, go to the next step. 5. Press in control knob and turn counterclockwise C-clockwise to the PILOT position. Keep control knob pressed [...]

  • Page 22

    22 099570 Figure 21 - Incorrect Pilot Flame Pattern INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 20 shows a correct pilot flame pattern. Figure 21 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. Whe[...]

  • Page 23

    23 099570 If pilot flame pattern is incorrect, as shown in Figure 21 • turn heater off (see To Turn Off Gas to Appliance , page 19 [models VN2000BTA and VN2800BTA] or page 22 [model VN2000BA]) • see Troubleshooting , pages 24 through 27 BURNER FLAME PATTERN Figure 22 shows a correct burner flame pattern. Figure 23 shows an incorrect burner flam[...]

  • Page 24

    24 099570 CLEANING AND MAINTENANCE ODS/PILOT AND BURNER • Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean. CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust. WARNING ICON G 001 W ARNI[...]

  • Page 25

    25 099570 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. Clean ODS/pilot (see Cleaning and Mainte- nance , page 24) or replace ODS/pilot assembly 6. Rep[...]

  • Page 26

    26 099570 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 opera- tion Heater produces a whistling noise when burner is lit REMEDY 1. Clean burner (see Cleaning and Mainte- nance , page 24) or replace[...]

  • Page 27

    27 099570 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 gas supplier, call the fire department. WAR[...]

  • Page 28

    28 099570 TECHNICAL SER VICE You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323- 5190. SPECIFICA TIONS SER VICE HINTS When gas pressure is too low • pilot will not stay lit • burner will have delayed ignition • heater will not produc[...]

  • Page 29

    29 099570 SER VICE PUBLICA TIONS You can purchase service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA International. REPLACEMENT P ARTS Note: Use only original replacement parts. This will protect your warranty cover- age for parts replaced under warranty. Parts Under Warranty Contact autho[...]

  • Page 30

    30 099570 ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International’s Parts Department at 1-800-972-7879. You can also write to the address listed on the back page of this manual. MANUAL SHUTOFF VALVE - GA5010 For all models. Manual shutoff valve with 1/8" NPT tap.[...]

  • Page 31

    31 099570 ILLUSTRA TED P ARTS LIST Manual Control Model VN2000BA (Parts list on page 33) 12 ODS/Pilot Assembly (Parts list on page 33) 26 24 34 19 29 33 20 12-1 12-2[...]

  • Page 32

    32 099570 1 2 3 4 5 6 7 8 9 10 10 11 12 13 14 15 16 17 19 20 21 22 23 24 25 26 27 28 30 31 32 18 NOTE: Thermostat Gas Valve Shown, See Page 31 for Manual Control Valve[...]

  • Page 33

    33 099570 P ARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. KEY PART NUMBER FOR NO. VN2000BA VN2000BTA VN2800BTA DESCRIPTION QTY. 1 098304-01 098304-01 098304-01 Screw, #10 x 3/8" 2 2 098742-13 098742-13 098742-14 Front Pa[...]

  • Page 34

    34 099570 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ____[...]

  • Page 35

    35 099570 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ____[...]

  • Page 36

    LIMITED WARRANTY VANGUARD VENT-FREE PROPANE GAS HEATERS DESA International warrants this product and any parts thereof, to be free from defects in material and work- manship for two years from the date of first purchase, provided that the product has been properly installed, operated, and maintained in accordance with all applicable instructions. T[...]