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INFRARED VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

®

MODELS: VN6C AND VN10

®

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.

This appliance may be installed in an aftermarket* manufactured (mobile) home, where not
prohibited by state or local codes.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

This appliance is only for use with the type of gas indicated on the rating plate. This appliance
is not convertible for use with other gases.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which
it is installed. Provisions for adequate combustion must be provided. Refer to page 3 of this
manual.

Summary of Contents for Vanguard VN10

Page 1: ...as 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 This appliance may be installed in an aftermarket manufactured mobile home where not prohibited by state or local codes Aftermarket Completion of sale not for ...

Page 2: ... shall not be in stalled in a bathroom 4 Never install the heater in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater as a fireplace insert in high traffic areas in windy or drafty areas 5 Always run heater with control knob at LOW or HIGH locked positions VN10 or ON position VN6C Never set control...

Page 3: ... cient than ever New materials increased insulation and new construction methods help reduce heat loss in homes Home own ers weather strip and caulk around windows and doors to keep the cold air out and the warm air in During heating months home owners want their homes as airtight as pos sible While it is good to make your home energy efficient your home needs to breathe Fresh air must enter your ...

Page 4: ...m Btu Hr the space can support You must provide additional fresh air Your options are as follows A Rework worksheet adding the space of an adjoining room If the extra space provides an unconfined space remove door to adjoining room or add ventila tion grills between rooms See Ventila tion Air From Inside Building page 5 B Vent room directly to the outdoors See Ventilation Air From Outdoors page 5 ...

Page 5: ...entilation Grills Into Adjoining Room Option 2 12 12 Ventilation Grills into Adjoining Room Option 1 Figure 2 Ventilation Air from Inside Building VENTILATION AIR Ventilation Air From Inside Building Thisfreshairwouldcomefromanadjoining unconfined space When ventilating to an adjoining unconfined space you must pro vide two permanent openings one within 12 of the ceiling and one within 12 of the f...

Page 6: ...moisture See Air for Com bustion and Ventilation pages 3 through 5 Mounting Screw Locations 10 7 8 Minimum To Maintain 8 Clearance From Wall 7 3 4 20 1 4 Minimum To Maintain 3 Clearance From Floor FLOOR JOINING WALL INSTALLING TO WALL NOTICE A qualified service per son must install heater Follow all local codes CHECK GAS TYPE Use only natural gas If your gas supply is not natural do not install he...

Page 7: ...ote Do not replace front panel at this time Replace front panel after making gas connections and checking for leaks see pages 8 and 9 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 areinhardwarepackage Thehardwarepack age is provided with heater Attaching to wall stud method For attaching mounting s...

Page 8: ...essure must be no greater than 14 inches of water If gas line pressure is higher heater regulator damage could occur CAUTION Use only new black iron or steel pipe Inter nally tinned copper tubing may be used in certain areas Check your local codes Use pipe 3 8 diameter or greater to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur Installation must include a...

Page 9: ...s meter 3 Check all joints from gas meter to manual shutoff valve see Figure 14 Apply mixture of liquid soap and wa ter to gas joints Bubbles forming show a leak 4 Correct all leaks at once CHECKING GAS CONNECTIONS WARNING Test all gas pip ing and connections for leaks after installing or servicing Cor rect all leaks at once WARNING Neveruseanopen flame to check for a leak Apply a mixture of liqui...

Page 10: ...n at the beginning of Oper ating Heater If you don t smell gas go to the next step 5 Press in control knob and turn coun terclockwise C clockwise to pilot posi tion Keep control knob pressed for five seconds Note You may be running this heater for the first time afterhook ing up to gas supply If so the con trol knob may need to be pressed in for 30 seconds This will allow air to bleed from the gas...

Page 11: ...erson Heater may need more frequent cleaning due to excessive lint from carpeting bedding material etc GRH OV 009 GOOD PILOT GRH OV 010 BAD PILOT If pilot flame pattern is incorrect as shown in Figure 19 turn heater off see To Turn Off Gas to Appliance page 10 see Troubleshooting pages 12 through 14 Pilot Burner Thermocouple Thermocouple Pilot Burner Check pilot flame pattern and burner flame patt...

Page 12: ... heater cabinet at top 6 Replace ignitor cable 7 Replace piezo ignitor 1 Turn on gas supply or open manual shutoff valve 2 Turn control knob to PILOT position 3 Press in control knob while in PILOT position 4 Continue holding down control knob Repeat igniting operation until air is re moved 5 Clean ODS pilot see Cleaning and Maintenance page 11 or replace ODS pilot assembly 6 Replace gas regulator...

Page 13: ...ation 1 This is common with most heaters If noise is excessive contact qualified ser vice person POSSIBLE CAUSE 1 Burner orifice s is clogged 2 Burner orifice s diameter is too small 3 Inlet gas pressure is too low 1 Manifold pressure is too low 2 Burner orifice s is clogged 1 Burner orifice s is clogged or damaged 2 Inlet gas pressure is too low 3 Burner damaged 4 Gas regulator defective 1 Plaque...

Page 14: ...ff 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 cannot reach your gas supplier call the fire department POSSIBLE CAUSE 1 Heater burning vapors from paint hair spray glues etc See IMPORTANT statement above 2 Gas leak See Wa...

Page 15: ...ntact authorized dealer from whom you purchased this product If they cannot sup ply original replacement part s call DESA International s Technical Service Depart ment at 1 800 323 5190 for referral infor mation When contacting your dealer or DESA In ternational have ready your name your address model number of your heater how heater was malfunctioning type of gas used propane LPor natu ral gas pu...

Page 16: ...lectrode 1 8 099884 01 Burner Assembly 1 9 099056 04 Injector 1 10 099390 01 Tubing Valve to burner 1 11 099387 05 Pilot Tubing Valve to pilot 1 12 099391 02 Tubing Regulator to valve 1 13 100829 01 Control Valve 1 PARTS AVAILABLE NOT SHOWN KEY PART NO NUMBER DESCRIPTION QTY 14 099057 01 Pressure Tap Fitting 1 15 098276 01 1 8 Pipe Plug 1 16 099468 10 Cabinet Assembly 1 17 099415 01 Gas Regulator ...

Page 17: ...lowtheinstructionslisted under Replacement Parts on page 15 of this manual KEY PART NO NUMBER DESCRIPTION QTY 1 098304 01 Screw 10 x 3 8 2 2 099467 03 Front Panel Assembly 1 3 099318 03 Grill Guard 1 4 101108 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 Electrode 1 8 099884 0...

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Page 20: ...any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIESANDLIMITSTHEDURATIONOFANYANDALLIMPLIEDWARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE T...

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