Vanguard VN12A Owner'S Operation And Installation Manual Download Page 1

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VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

®

Models: VN6B and VN12A

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.

®

Summary of Contents for VN12A

Page 1: ...r 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...

Page 2: ...us injury or death from burns fire explosion and carbon monoxide poisoning WARNING ICON G 001 DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxid...

Page 3: ...light safety system The ODS shuts down the heater if not enough fresh air is available See Fresh Air for Combus tion and Ventilation pages 5 through 8 7 Neverrunheaterinsmall closedroom Opendoorintone...

Page 4: ...ing applied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES Safety Device This heater has a pilot wit...

Page 5: ...The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unus...

Page 6: ...r Gas furnace ___________________ BTU Hr Vented gas heater ___________________ BTU Hr Gas fireplace logs ___________________ BTU Hr Other gas appliances ___________________ BTU Hr Total ______________...

Page 7: ...or on the wall connecting the two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 WARNING ICON G 001 WARNING Rework worksheet adding the space of...

Page 8: ...en to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation gr...

Page 9: ...page 10 If you can provide greater clearances from floor ceiling and join ing wall WARNING ICON G 001 WARNING Never install the heater in a bedroom or bathroom VN12A in a recreational vehicle where cu...

Page 10: ...R JOINING WALL WARNING ICON G 001 WARNING Maintain minimum clearances shown in Figure 5 If you can provide greater clearances from floor and joining wall INSTALLING TO WALL Continued For convenience a...

Page 11: ...ewhead and wall Attaching to wall anchor method Follow instructions below to attach mounting screws to hollow walls wall areas between studs or solid walls concrete or masonry 1 Drill holes at marked...

Page 12: ...talling Bottom Mounting Screw 1 Locate bottom mounting hole This hole is near bottom on back panel of heater see Figure 11 2 Mark screw location on wall 3 Remove heater from wall 4 If installing botto...

Page 13: ...heater controls If sediment trap is not installed or is installed wrong heater may not run properly IMPORTANT Check gas line pressure before connecting heater to gas line Gas line pressure must be no...

Page 14: ...C Pressure PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1 2 PSIG 1 Disconnect heater and its individual manual shutoff valve from gas supply piping system Pressures in excess...

Page 15: ...SSURE TESTING HEATER GAS CONNECTIONS 1 Open manual shutoff valve see Figure 13 2 Open main gas valve located on or near gas meter 3 Make sure control knob of heater is in the OFF position 4 Check all...

Page 16: ...ntrol knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician or gas supplier Force or attempted repair may result in a fire or exp...

Page 17: ...s supply If so the control knob may need to be pressed in for 30 seconds This will allow air to bleed from the gas system If control knob does not pop up when released contact a qualified service pers...

Page 18: ...7 Burner Patterns LOW OFF PILOT HIGH OFF PILOT OFF Control VN12A Knob Burners ON OFF PILOT OFF Control VN6B Knob Burner WARNING ICON G 001 WARNING When running heater set control knob at LOW or HIGH l...

Page 19: ...el TO TURN OFF GAS TO APPLIANCE Continued 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 above se...

Page 20: ...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...

Page 21: ...trol valve piezo is part of control valve 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 dow...

Page 22: ...eplace burner orifice s 3 Contact local natural gas company 1 Contact local natural gas company 2 Clean burner orifice s see Cleaning and Maintenance page 20 or replace burner orifice s 1 Clean burner...

Page 23: ...Gas Connections page 14 1 Open window and or door for ventilation 2 Contact local natural gas company 3 Clean ODS pilot see Cleaning and Mainte nance page 20 OBSERVED PROBLEM Burner plaque s does not...

Page 24: ...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 ca...

Page 25: ...name your address model number of your heater how heater was malfunctioning type of gas used propane or natural gas purchase date Usually we will ask you to return the defective part to the factory P...

Page 26: ...CRIPTION QTY 14 099057 01 Pressure Tap Fitting 1 15 098276 01 1 8 Pipe Plug 1 16 099468 04 Cabinet Assembly 1 17 099415 01 Gas Regulator 1 18 098303 02 Screw 6 x 5 16 2 19 098508 01 Valve Retainer Nut...

Page 27: ...Y PART NO NUMBER DESCRIPTION QTY 14 100432 01 Control Valve 1 15 099057 01 Pressure Tap Fitting 1 16 098276 01 1 8 Pipe Plug 1 17 099468 05 Cabinet Assembly 1 18 099415 01 Gas Regulator 1 19 098303 02...

Page 28: ...with warranty repairs are not reimbursable under this warranty and are the responsibility of the owner To the full extent allowed by the law of the jurisdiction that governs the sale of the product t...

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