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Manual Vanguard Heating VN12A

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  • Vanguard Heating VN12A - page 1

    Save this manual for future reference. VENT -FREE NA TURAL GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL ® Models: VN6B and VN12A 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 gasoline or other flamma ...

  • Vanguard Heating VN12A - page 2

    2 100845 CONTENTS SECTION PAGE Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking ...................... ...

  • Vanguard Heating VN12A - page 3

    3 100845 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 ...

  • Vanguard Heating VN12A - page 4

    4 100845 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 ...

  • Vanguard Heating VN12A - page 5

    5 100845 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. ...

  • Vanguard Heating VN12A - page 6

    6 100845 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 ...

  • Vanguard Heating VN12A - page 7

    7 100845 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 ...

  • Vanguard Heating VN12A - page 8

    8 100845 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 ...

  • Vanguard Heating VN12A - page 9

    9 100845 INST ALLING T O W ALL Continued NOTICE A qualified service person must install heater. Follow all local codes. 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 Before installing heater, make sure you have the items l ...

  • Vanguard Heating VN12A - page 10

    10 100845 2. Mark two mounting screw locations on wall (see Figure 5). INSTALLING HEATER TO WALL Marking Screw Locations 1. Determine where you will locate heater. Figure 5 - Mounting Screw Locations Mounting Screw Locations 10 7/8" Minimum To Maintain 8" Clearance From Wall 7 3/4" 20 1/4" Minimum To Maintain 3" Clearance F ...

  • Vanguard Heating VN12A - page 11

    11 100845 5. Tighten two screws until 1/16" space (thickness of penny) is between screwheads and wall (see Figure 8). Figure 7 - Popping Open Anchor Wings For Thin Walls Thin Walls (1/4" to 1/2" thick) Installing Two Mounting Screws Note: Wall anchors and mounting screws are in hardware package. The hardware package is provided with ...

  • Vanguard Heating VN12A - page 12

    12 100845 Placing Heater On Mounting Screws 1. Locate two keyhole slots on back panel of heater (see Figure 9). 2. Place large openings of slots over screwheads. Slide heater down until screws are in small portion of slots. Figure 11 - Installing Bottom Mounting Screw Figure 9 - Location Of Keyhole Slots On Back Panel Of Heater Keyhole Slots Removi ...

  • Vanguard Heating VN12A - page 13

    13 100845 CONNECTING T O GAS SUPPL Y Continued Installation must include a manual shutoff valve, ground joint union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 12, page 14). Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from ...

  • Vanguard Heating VN12A - page 14

    14 100845 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Figure 12 - Gas Connection * An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See ...

  • Vanguard Heating VN12A - page 15

    15 100845 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 13). 2. Pressurize supply piping system by either using compressed air or opening main gas ...

  • Vanguard Heating VN12A - page 16

    16 100845 OPERA TING HEA TER 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 heavier than air and will settle on the floo ...

  • Vanguard Heating VN12A - page 17

    17 100845 7. Keep control knob pressed in for 10 seconds after lighting pilot. After 10 seconds, release control knob. Note: If pilot goes out, repeat steps 3 through 7. 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 16. ...

  • Vanguard Heating VN12A - page 18

    18 100845 TO SELECT HEA TING LEVEL 1. Slightly press in control knob and turn counterclockwise C-clockwise to the LOW or HIGH positions (VN12A) or ON position (VN6B). IMPORTANT: Release downward pressure while turning control knob. Control knob will lock at the desired position. Figure 17 - Burner Patterns LOW OFF PILOT HIGH OFF PILOT OFF Control V ...

  • Vanguard Heating VN12A - page 19

    19 100845 Shutting Off Heater 1. Turn control knob clockwise Clockwise to the OFF position. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise Clockwise to the PILOT position. MANUAL LIGHTING PROCEDURE 1. Remove front panel (see Figure 10, page 12). 2. Follow steps 1 through 5 under Lighting Instructions , pages 16 and 17. 3. ...

  • Vanguard Heating VN12A - page 20

    20 100845 BURNER FLAME PATTERN Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. Figure 20 - Correct Burner Flame Pattern (Model VN12A Shown) Figure 21 - Incorrect Burner Flame Pattern (Model VN12A Shown) If burner flame pattern is incorrect, as shown in Figure 21 • turn heater off (see To Turn Off ...

  • Vanguard Heating VN12A - page 21

    21 100845 TROUBLE- SHOOTING POSSIBLE CAUSE 1. Ignitor electrode posi- tioned wrong 2. Ignitor electrode broken 3. Ignitor electrode not connected to ignitor cable 4. Ignitor cable pinched or wet 5. Piezo ignitor nut is loose 6. Broken ignitor cable 7. Bad piezo ignitor 1. Gas supply turned off or manual shutoff valve closed 2. Control knob not in P ...

  • Vanguard Heating VN12A - page 22

    22 100845 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released POSSIBLE CAUSE 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Manual shutoff valve not fully open 4. Thermocouple connec- tion loose at control valve 5. Pilot flame not touch- ing thermocouple, which allows thermo- couple ...

  • Vanguard Heating VN12A - page 23

    23 100845 POSSIBLE CAUSE 1. Plaque damaged 2. Inlet gas pressure is too low 3. Control knob set between locked positions 1. Residues from manu- facturing processes 1. Metal expanding while heating or contracting while cooling 1. Heater burning vapors from paint, hair spray, glues, etc. See IMPOR- TANT statement above 2. Gas leak. See Warn- ing stat ...

  • Vanguard Heating VN12A - page 24

    24 100845 OBSERVED PROBLEM Gas odor even when control knob is in OFF position Gas odor during combustion REMEDY 1. Locate and correct all leaks (see Checking Gas Connections , page 14) 2. Replace control valve 1. Take apart gas tubing and remove foreign matter 2. Locate and correct all leaks (see Checking Gas Connections , page 14) POSSIBLE CAUSE 1 ...

  • Vanguard Heating VN12A - page 25

    25 100845 When gas pressure is too low • pilot will not stay lit • burner(s) will have delayed ignition • heater will not produce specified heat When gas quality is bad • pilot will not stay lit • burner(s) will produce flames and soot • heater will backfire when lit You may feel your gas pressure is too low or gas quality is bad. If so ...

  • Vanguard Heating VN12A - page 26

    26 100845 KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 099467-01 Front Panel Assembly 1 3 099318-03 Grill Guard 1 4 098342-01 Grill Guard Clip 2 5 099469-01 Reflector Assembly 1 6 M15823-37 Screw Hex #8 x 1/4" 9 7 503329 ODS/Pilot Assembly 1 7-1 098514-01 Thermocouple 1 7-2 098594-01 Ignitor Electrode 1 8 099884- ...

  • Vanguard Heating VN12A - page 27

    27 100845 HEATER EXPLODED VIEW KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 099467-01 Front Panel Assembly 1 3 099318-03 Grill Guard 1 4 098342-01 Grill Guard Clip 2 5 099469-02 Reflector Assembly 1 6 M15823-37 Screw Hex #8 x 1/4" 10 7 503329 ODS/Pilot Assembly 1 7-1 098514-01 Thermocouple 1 7-2 098594-01 Ignitor ...

  • Vanguard Heating VN12A - page 28

    LIMITED WARRANTY VANGUARD VENT-FREE RESIDENTIAL GAS HEATERS DESA International warrants this product and any parts thereof, to be free from defects in material and workmanship 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. ...

Manufacturer Vanguard Heating Category Electric Heater

Documents that we receive from a manufacturer of a Vanguard Heating VN12A can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Vanguard Heating VN12A.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Vanguard Heating VN12A, service manual, brief instructions and user manuals Vanguard Heating VN12A. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Vanguard Heating VN12A.

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A complete Vanguard Heating manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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