Instruction/ maintenance manual of the product VN1000B Desa
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VENT -FREE NA TURAL GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL Save this manual for future reference. ® Model: VN1000B 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.
2 099400 CONTENTS SECTION PAGE Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ...................
3 099400 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.
4 099400 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 The National Fuel Gas Code ANSI Z223.1 also known as NFPA 54*. *Available from: American National Standards Institute, Inc.
5 099400 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.
6 099400 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.
7 099400 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.
8 099400 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.
9 099400 NOTICE A qualified service person must install heater. Follow all local codes. INST ALLING T O W ALL 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.
10 099400 Figure 5 - Mounting Screw Locations Mounting Screw Locations 8 7/8" Minimum To Maintain 6" Clearance From Wall 7 3/4" 20 1/4" Minimum To Maintain 3" Clearance From Floor FLOOR JOINING WALL INSTALLING HEATER TO WALL Marking Screw Locations 1.
11 099400 Installing Two Mounting Screws Note: Wall anchors and mounting screws are in hardware package. The hardware package is provided with heater. Attaching to wall stud method For attaching mounting screw to wall stud 1. Drill hole at marked location using 9/64" drill bit.
12 099400 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.
13 099400 CONNECTING T O GAS SUPPL Y NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. IMPORTANT : Check gas line pressure before connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water.
14 099400 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. * 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.
15 099400 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).
16 099400 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.
17 099400 Thermocouple Pilot Burner Ignitor Electrode Figure 16 - Pilot 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.
18 099400 T O TURN OFF GAS T O APPLIANCE Shutting Off Heater 1. Turn control knob clockwise Clockwise to the PILOT position. 2. Press in control knob and turn clockwise Clockwise to the OFF position. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise Clockwise to the PILOT position.
19 099400 Figure 19 - Correct Burner Flame Pattern Yellow Tipping Figure 20 - Incorrect Burner Flame Pattern BURNER FLAME PATTERN Figure 19 shows a correct burner flame pattern. Figure 20 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame.
20 099400 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.
21 099400 OBSERVED PROBLEM When ignitor button is pressed, there is spark at ODS/pilot but no ignition ODS/pilot lights but flame goes out when control knob is released TROUBLE- SHOOTING Continued REMEDY 1. Turn on gas supply or open manual shutoff valve 2.
22 099400 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.
23 099400 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.
24 099400 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 BTU (Variable) 5,000/10,000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3" W.
25 099400 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.
26 099400 HEATER EXPLODED VIEW 10 12 11 1 2 3 4 5 6 7 9 8 10 13 14 15 16 17 18 21 23 24 27 22 26 25 19 20 28 29.
27 099400 P ARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual.
LIMITED WARRANTY VANGUARD VENT-FREE NATURAL 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.
An important point after buying a device Desa VN1000B (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa VN1000B yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa VN1000B - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa VN1000B you will learn all the available features of the product, as well as information on its operation. The information that you get Desa VN1000B will certainly help you make a decision on the purchase.
If you already are a holder of Desa VN1000B, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa VN1000B.
However, one of the most important roles played by the user manual is to help in solving problems with Desa VN1000B. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa VN1000B along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
