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VENT-FREE NATURAL GAS HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
Models: VN2000BA, VN2000BTA, and VN2800BTA
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 flammable vapors and liquids in the
vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• 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.
— Installation and service must be performed by a qualified installer, service
agency, or the gas supplier.
Save this manual for future reference.
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Table of Contents
Related Manuals for Desa Vanguard VN2000BA
Summary of Contents for Desa Vanguard VN2000BA
- Page 1 VENT-FREE NATURAL GAS HEATER OWNER’S OPERATION AND INSTALLATION MANUAL Models: VN2000BA, VN2000BTA, and VN2800BTA 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.
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Page 2: Table Of Contents
Installing To Wall ... 9 Connecting To Gas Supply ... 14 Checking Gas Connections ... 15 Operating Heater (Models VN2000BTA & VN2800BTA) ... 17 Operating Heater (Model VN2000BA) ... 20 Inspecting Burner ... 22 Cleaning And Maintenance ... 24 Troubleshooting ... 24 Technical Service ... - Page 3 SAFETY INFORMATION Continued 099570 WARNINGS WARNING ICON G 001 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 •...
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Page 4: Product Identification
PRODUCT IDENTIFICATION LOCAL CODES UNPACKING PRODUCT FEATURES Front Panel Figure 1 - Vent-Free Natural Gas Heater (Model VN2800BTA Shown) 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*. -
Page 5: Fresh Air For Combustion And Ventilation
FRESH AIR COMBUSTION VENTILATION 099570 WARNING ICON G 001 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. - Page 6 Example: 2560 cu. ft. (volume of space) 50 cu. ft. = BTU/Hr the space can support) 3. Add the BTU/Hr of all fuel burning appliances in the space. Vent-free heater Gas water heater* Gas furnace Vented gas heater Gas fireplace logs...
- Page 7 FRESH AIR COMBUSTION VENTILATION Continued 099570 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"...
- Page 8 FRESH AIR COMBUSTION VENTILATION 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 spaces open to the outdoors.
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Page 9: Installing To Wall
INSTALLING TO WALL 099570 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 gas, 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 below. - Page 10 INSTALLING TO WALL Continued 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 30. If planning to use fan, locate heater near an electrical outlet.
- Page 11 INSTALLING TO WALL Continued 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. Figure 6 - Mounting Bracket Removing Front Panel Of Heater 1.
- Page 12 3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall. WARNING 7 1/4" 16" Min. Only Insert Mounting 18 3/4" Screws Through Last Min. Hole On Each End Floor Models VN2000BA and VN2000BTA 18 3/4" Min. 099570...
- Page 13 INSTALLING TO WALL Continued 099570 4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT 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.
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Page 14: Connecting To Gas Supply
If pipe is too small, undue loss of pressure will occur. Typical Pipe Diameters VN2000BA or VN2000BTA VN2800BTA Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. -
Page 15: Checking Gas Connections
CONNECTING TO GAS SUPPLY Continued CHECKING CONNECTIONS 099570 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Pressure Regulator 1/2" NPT Pipe Nipple Tee Joint Test Reducer Bushing to Gauge 1/8" NPT Connection * 1/8" NPT Plug Tap Tee Joint Sediment... - Page 16 3. Make sure control knob of heater is in the OFF position. 4. Check all joints from manual shutoff valve to thermostat gas valve (models VN2000BTA and VN2800BTA) or control valve (model VN2000BA) (see Figure 15). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
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Page 17: Operating Heater (Models Vn2000Bta & Vn2800Bta)
OPERATING HEATER Models VN2000BTA and VN2800BTA 099570 FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON G 001 If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. - Page 18 OPERATING HEATER Models VN2000BTA and VN2800BTA Continued 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.
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Page 19: To Turn Off Gas To Appliance
OPERATING HEATER Models VN2000BTA and VN2800BTA Continued 099570 TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Turn control knob clockwise 2. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1. -
Page 20: Operating Heater (Model Vn2000Ba)
OPERATING HEATER Model VN2000BA FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON G 001 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, follow these instructions exactly. - Page 21 OPERATING HEATER Model VN2000BA Continued 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.
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Page 22: Inspecting Burner
OPERATING HEATER Model VP2000BA Continued INSPECTING BURNER TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Turn control knob clockwise 2. Press in control knob and turn clockwise 3. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1. - Page 23 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.
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Page 24: Cleaning And Maintenance
CLEANING MAINTENANCE TROUBLE- SHOOTING Note: All troubleshooting items are listed in order of operation. WARNING ICON G 001 Turn off heater and let cool before cleaning. WARNING ICON You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. - Page 25 TROUBLE- SHOOTING Continued 099570 OBSERVED POSSIBLE PROBLEM CAUSE When ignitor button 1. Gas supply turned off is pressed, there is or manual shutoff spark at ODS/pilot valve closed but no ignition 2. Control knob not in PILOT position 3. Control knob not pressed in while in PILOT position 4.
- Page 26 TROUBLE- SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE Burner does not light 1. Burner orifice is after ODS/pilot is lit clogged 2. Burner orifice diameter is too small 3. Inlet gas pressure is too low Delayed ignition of 1. Manifold pressure is burner too low 2.
- Page 27 TROUBLE- SHOOTING Continued 099570 WARNING ICON G 001 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. •...
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Page 28: Technical Service
TECHNICAL SERVICE SPECIFICATIONS SERVICE HINTS You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323- 5190. VN2000BA/ VN2000BTA B.T.U (Variable) 9,000/18,000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3"... -
Page 29: Service Publications
099570 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. Note: Use only original replacement parts. This will protect your warranty cover- age for parts replaced under warranty. -
Page 30: Accessories
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. FAN KITS - GA2100A and GA3100 For all models. -
Page 31: Illustrated Parts List
ILLUSTRATED PARTS LIST 099570 Manual Control Model VN2000BA (Parts list on page 33) 12 ODS/Pilot Assembly (Parts list on page 33) 12-1 12-2... - Page 32 99570...
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Page 33: Parts List
PARTS LIST VN2000BA 098304-01 098742-13 098197-03 098342-01 098533-01AA 098260-01 098532-01AA M11084-26 098352-01BR 098271-02 098249-01 099440-05 12-1 098514-01 12-2 098515-01 099120-02 099387-03 098251-02 098250-01 098867-04 099553-01 098519-01 098298-03 — — — 098265-01 — — 098246-02 098529-01 097159-02 098508-01 M11084-26 M11084-38 099066-01... - Page 34 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 099570...
- Page 35 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _____________________________________________________________ 099570...
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Page 36: Warranty Information
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.