Page 2 - Carbon Monoxide Poisoning:; WARNINGS
2 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning re-semble the flu, with headaches, dizziness,or nausea. If you have these signs, the heatermay not be working properly. Get fresh airat once! Have heater serviced. Some peopleare mo...
Page 3 - OWNER’S MANUAL; LOCAL CODES; American National Standards Institute, Inc.; UNPACKING; Remove heater from carton.; SAFETY PILOT; WARNING: This heater shall
3 101851 OWNER’S MANUAL PRODUCTIDENTIFICATION LOCAL CODES Install and use heater with care. Follow alllocal codes. In the absence of local codes,use the latest edition of National Fuel GasCode ANSI Z223.1, also known as NFPA54*. *Available from: American National Standards Institute, Inc. 1430 Broad...
Page 4 - Includes the room in which you; Confined and Unconfined Space
4 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 WARNING: If the area in which the heater may be operated issmaller than that defined as anunconfined space, provide ad-equate combustion and ventila-tion air by one of the methodsdescribed in the National Fuel Gas Code, ANSI Z223.1, 1992,Section 5.3...
Page 5 - Figure 3 - Ventilation Air from Outdoors; Ventilation Air From Outdoors; Do not provide openings; Figure 2 - Ventilation Air from Inside Building; VENTILATION AIR
5 101851 OWNER’S MANUAL Figure 3 - Ventilation Air from Outdoors OutletAir VentilatedAttic OutletAir InletAir Inlet Air Ventilated Crawl Space To Crawl Space To Attic Ventilation Air From Outdoors Provide extra fresh air by using ventilationgrills or ducts. You must provide two per-manent openings: ...
Page 6 - Marking Screw Locations; Determine where you will locate heater.; Figure 5 - Mounting Screw Locations; For convenience and efficiency, install heater; CHECK GAS TYPE
6 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 2. Mark two mounting screw locations onwall (see Figure 5). INSTALLING HEATER TOWALL Marking Screw Locations 1. Determine where you will locate heater. Figure 5 - Mounting Screw Locations WARNING: Maintain minimum clearances shown in Figure 5. Ifyou...
Page 7 - Mark screw location on wall.; Attaching to wall stud method; For attaching mounting screw to wall stud; Figure 6 - Folding Anchor; Figure 8 - Tightening Anchors
7 101851 OWNER’S MANUAL PLACING HEATER ONMOUNTING SCREWS 1. Locate two keyhole slots on back panelof heater (see Figure 9). 2. Place large openings of slots overscrewheads. Slide heater down untilscrews are in small portion of slots. Figure 11 - Installing Bottom MountingScrew Figure 9 - Location Of...
Page 8 - Figure 12 - Gas Connection; WARNING: Never connect; Check gas line pressure be-
8 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 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 acceptablealternative to test gauge connection...
Page 9 - Figure 13 - Manual Shutoff Valve; Figure 14 - Checking Gas Joints; Correct all leaks at once.; WARNING: Never use an open
9 101851 OWNER’S MANUAL PRESSURE TESTINGHEATER GASCONNECTIONS 1. Open manual shutoff valve (see Figure13). 2. Open main gas valve located on or neargas meter. 3. Make sure control knob of heater is inthe OFF position. 4. Check all joints from manual shutoffvalve to control valve (see Figure 14).Appl...
Page 10 - WARNING: When running; CAUTION: Do not try to adjust; Shutting Off Heater; Turn control knob clockwise; Turn control knob clockwise; to the PILOT position.
10 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 TO SELECT HEATINGLEVEL 1. Slightly press in control knob andturn counterclockwise C-clockwise to the LOW or HIGH positions (VN10) orON position (VN6C). IMPORTANT: Release downward pressure while turning control knob.Control knob will lock at the de...
Page 11 - Air Passageways; WARNING: Turn off heater; Figure 19 - Incorrect Pilot Flame Pattern
11 101851 OWNER’S MANUAL BURNER FLAME PATTERN Figure 20 shows a correct burner flamepattern. Figure 21 shows an incorrect burnerflame pattern. Figure 20 - Correct Burner Flame Pattern(Model VN10 Shown) Figure 21 - Incorrect Burner Flame Pattern(Model VN10 Shown) If burner flame pattern is incorrect,...
Page 12 - POSSIBLE CAUSE; TROUBLESHOOTING
12 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 POSSIBLE CAUSE 1. Ignitor electrode positioned wrong2. Ignitor electrode broken3. Ignitor electrode not connected to igni- tor cable 4. Ignitor cable pinched or wet 5. Piezo ignitor nut is loose 6. Broken ignitor cable7. Bad piezo ignitor 1. Gas su...
Page 13 - OBSERVED PROBLEM; WARNING: If you smell gas
13 101851 OWNER’S MANUAL TROUBLESHOOTING Continued OBSERVED PROBLEM Burner(s) does not light after ODS/pilot islit 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 noisej...
Page 14 - above; IMPORTANT; low
14 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 OBSERVED PROBLEM Gas odor even when control knob is in OFFposition Gas odor during combustion Moisture/condensation noticed on windows REMEDY 1. Locate and correct all leaks (see Check- ing Gas Connections, page 9) 2. Replace control valve 1. Take ...
Page 15 - SPECIFICATIONS; When gas pressure is too low; SERVICE HINTS; Parts Under Warranty; ACCESSORY
15 101851 OWNER’S MANUAL You may have further questions about in-stallation, operation, or troubleshooting. If so, contact DESA International’s Techni-cal Service Department at 1-800-323-5190. TECHNICALSERVICE SPECIFICATIONS VN10 VN6C Btu (Variable) 5,500/10,000 6,000 Type Gas Natural Only Natural O...
Page 16 - PARTS LIST; HEATER EXPLODED VIEW
16 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 PARTS LIST VN6C This list contains replaceable parts used in your heater. When ordering parts, follow the instructionslisted under Replacement Parts on page 15 of this manual. HEATER EXPLODED VIEW 7-17-2 ODS/PILOT KEY PART NO. NUMBER DESCRIPTION QT...
Page 18 - NOTES
18 101851 NATURAL GAS HEATER VANGUARD VN6C AND VN10 NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ __________________________________________________...
Page 20 - For information about this warranty write:; KEEP THIS WARRANTY; Model; WARRANTY INFORMATION
LIMITED WARRANTY VANGUARD VENT-FREE RESIDENTIAL GAS HEATERS DESA International warrants this product to be free from defects in materials and components for three (3) yearsfrom the date of first purchase, provided that the product has been properly installed, operated and maintained inaccordance wit...