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Desa VN3000C 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 Models: VN1800C, VN1800IT , VN3000C, and VN2550IT Save this manual for future reference. 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 u[...]

  • Page 2

    2 100750 CONTENTS SECTION PAGE Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking ......................[...]

  • Page 3

    3 100750 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 n[...]

  • Page 4

    4 100750 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 100750 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 100750 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 100750 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 100750 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 100750 INST ALLING T O W ALL 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 listed belo[...]

  • Page 10

    10 100750 Figure 5 - Attaching Thermostat Sensing Bulb For convenience and efficiency, install heater • where there is easy access for operation, inspection, and service • in coldest part of room An optional fan kit is available from your dealer. See Accessories , page 31. If planning to use fan, locate heater near an electrical outlet. Clamp T[...]

  • Page 11

    11 100750 Methods For Attaching Mounting Bracket To Wall Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 16 inches apart from their centers. Attach mounting bracket to wall in one of two ways. 1. Attaching to wall stud 2. Attaching to wall anchor Attaching to wall stud This method provides the stron[...]

  • Page 12

    12 100750 Marking Screw Locations 1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level. Models VN3000C and VN2550IT Models VN1800C and VN1800IT Figure 8 - Mounting Bracket Clearances 2. Mark screw locations on wall (see Figure 8). Note: Only mark last hole on each end of mounting bracket. Insert mountin[...]

  • Page 13

    13 100750 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 10 - Popping Open Anchor Wings For Thin Walls 5. Place mounting bracket onto wall. Line up last hole on each[...]

  • Page 14

    14 100750 CONNECTING T O GAS SUPPL Y NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. Typical Pipe Diameters VN1800C or VN1800IT 3/8" or greater VN3000C or VN2550IT 1/2" or greater Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach[...]

  • Page 15

    15 100750 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Test Gauge Connection * Sediment Trap Tee Joint Pipe Nipple Cap Manual Shutoff Valve * 1/2" NPT Pipe Nipple Heater Cabinet Figure 13 - Gas Connection * An A.G.A. design cer[...]

  • Page 16

    16 100750 ON POSITION OFF POSITION Figure 14 - Manual Shutoff Valve Manual Shutoff Valve Open Closed Figure 15 - Checking Gas Joints Manual Shutoff Valve Gas Meter Control Valve Location 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. T[...]

  • Page 17

    17 100750 OPERA TING HEA TER Models VN1800IT and VN2550IT FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON G 001 W ARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, fol[...]

  • Page 18

    18 100750 LIGHTING INSTRUCTIONS 1. STOP! Read the safety information at the top of page 17. 2. Make sure manual shutoff valve is fully open. 3. Turn thermostat control knob on left side of heater clockwise Clockwise to the OFF position. OPERA TING HEA TER Models VN1800IT and VN2550IT Continued IGNITOR PILOT LO OFF HI 1 2 3 4 Plaque Control Knob The[...]

  • Page 19

    19 100750 1. Slightly press in plaque control knob on right side of heater and turn counterclockwise C-clockwise to the desired position. IMPORTANT: Release downward pressure while turning control knob. Control knob will lock at the desired position. 2. Turn thermostat control knob on left side of heater to any setting between LO and HI. Note: When[...]

  • Page 20

    20 100750 T O TURN OFF GAS TO APPLIANCE OPERA TING HEA TER Models VN1800IT and VN2550IT Continued Shutting Off Heater 1. Turn thermostat 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 thermostat control knob clock[...]

  • Page 21

    21 100750 OPERA TING HEA TER Models VN1800C and VN3000C FOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING INSTRUCTIONS 1. STOP! Read the safety information above. 2. Make sure manual shutoff valve is fully open. 3. Turn control knob clockwise Clockwise to the OFF position. A. This appliance has a pilot which must be lighted by hand. When lighting the p[...]

  • Page 22

    22 100750 4. Wait five 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 21. If you don’t smell gas, go to the next step. 5. Press in control knob. Note: You may be running this heater for the first time after hooking up to gas supply. If[...]

  • Page 23

    23 100750 T O SELECT HEA TING LEVEL Figure 21 - Burner Patterns 1. Slightly press in control knob and turn counterclockwise C-clockwise to the LOW, MEDIUM, or HIGH positions. IMPORTANT: Release downward pressure while turning control knob. Control knob will lock at the desired position. OPERA TING HEA TER Models VN1800C and VN3000C Continued WARNIN[...]

  • Page 24

    24 100750 T O TURN OFF GAS T O APPLIANCE INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 22 shows a correct pilot flame pattern. Figure 23 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the therm[...]

  • Page 25

    25 100750 BURNER FLAME PATTERN Figure 24 shows a correct burner flame pattern. Figure 25 shows an incorrect Correct Burner Pattern-Plaque GRH/OV 018 Figure 24 - Correct Burner Flame Pattern Bad Burner Pattern-Plaque GRH/OV 019 Figure 25 - Incorrect Burner Flame Pattern burner flame pattern. If burner flame pattern is incorrect, as shown in Figure 2[...]

  • Page 26

    26 100750 CLEANING AND MAINTENANCE ODS/PILOT AND BURNER ORIFICE • 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 00[...]

  • Page 27

    27 100750 OBSERVED PROBLEM When control knob is pressed in and turned to the PILOT/IGN position, there is spark at ODS/pilot but no ignition (non-thermo- stat model only). When ignitor button is pressed in, there is a spark at ODS/pilot but no ignition (thermo- stat models only). ODS/pilot lights but flame goes out when control knob is released TRO[...]

  • Page 28

    28 100750 OBSERVED PROBLEM Burner(s) does not light after ODS/pilot is lit. Delayed ignition of burner(s) Burner backfiring during combustion. Burner plaque(s) does not glow. Slight smoke or odor during initial opera- tion Heater produces a clicking/ticking noise just after burner is lit or shut off. REMEDY 1. Clean burner orifice(s) (see Cleaning [...]

  • Page 29

    29 100750 WARNING ICON G 001 W ARNING TROUBLE- SHOOTING Continued 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 canno[...]

  • Page 30

    30 100750 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. VN1800IT VN2550IT BTU (Variable) 6,600-18,000 7,000-25,500 Type Gas Natural Only Natural Only Ignition Piezo Piezo Pressure Regulator Setting 6" W.[...]

  • Page 31

    31 100750 REPLACEMENT P ARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. Parts Under Warranty Contact authorized dealer from whom you purchased this product. If they are unable to supply original replacement part(s), call DESA International’s Technical Service Department a[...]

  • Page 32

    32 100750 1 2 3 11 6 4 8 5 6 7 12 23 9 10 24 14 17 16 21 18 22 20 19 15 13 ILLUSTRA TED P ARTS BREAKDOWN Model VN1800IT HEATER EXPLODED VIEW 23-19 23-18 ODS/PILOT ASSEMBLY A B C 23-1 23-2 23-3 23-4 23-5 23-7 23-6 23-8 23-12 23-16 23-11 23-15 23-10 23-17 23-14 23-13 23-9 BURNER ASSEMBLY[...]

  • Page 33

    33 100750 P ARTS LIST Model VN1800IT This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 31 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-13 Front Panel 1 3 098238-01 Grill Guard 1 4 098342-01 Clip-Grill Gua[...]

  • Page 34

    34 100750 HEATER EXPLODED VIEW 1 2 3 11 6 4 8 5 6 7 12 23 9 10 24 14 17 16 21 18 22 20 19 15 13 ILLUSTRA TED P ARTS BREAKDOWN Model VN2550IT D C 23-1 23-2 23-3 23-8 23-16 23-17 23-11 B A 23-12 23-5 23-6 23-4 23-9 23-7 23-13 23-20 23-10 23-14 23-15 23-19 23-18 ODS/PILOT BURNER ASSEMBLY[...]

  • Page 35

    35 100750 P ARTS LIST Model VN2550IT This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 31 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-14 Front Panel 1 3 098238-05 Grill Guard 1 4 098342-01 Clip-Grill Gua[...]

  • Page 36

    36 100750 1 2 3 11 6 4 8 5 6 7 12 13 9 10 14 16 15 HEATER EXPLODED VIEW ILLUSTRA TED P ARTS BREAKDOWN Model VN1800C BURNER ASSEMBLY A B C 13-1 13-2 13-3 13-10 13-4 13-5 13-6 13-7 13-8 13-9 13-14 13-13 13-12 13-11 13-15 13-18 13-17 13-16 ODS/PILOT[...]

  • Page 37

    37 100750 P ARTS LIST Model VN1800C This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 31 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-13 Front Panel 1 3 098238-01 Grill Guard 1 4 098342-01 Clip-Grill Guar[...]

  • Page 38

    38 100750 1 2 3 11 6 13 4 8 5 6 7 12 9 10 14 15 16 HEATER EXPLODED VIEW ILLUSTRA TED P ARTS BREAKDOWN Model VN3000C 13-17 13-16 ODS/PILOT E D C 13-1 13-2 13-3 13-9 13-4 13-5 13-7 13-6 13-8 13-10 13-14 13-13 13-12 13-15 13-11 B A 13-18 BURNER ASSEMBLY[...]

  • Page 39

    39 100750 P ARTS LIST Model VN3000C This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 31 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-14 Front Panel 1 3 098238-02 Grill Guard 1 4 098342-01 Clip-Grill Guar[...]

  • Page 40

    KEEP THIS WARRANTY W ARRANTY INFORMA TION 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. Model Serial No. Date Purchased LIMITED [...]