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© 2021 United States Stove Company

14.  Caution: Candles, incense, oil lamps, etc. 

produce combustion by-products including 

soot. Vent-free appliances will not filter or clean 

soot  produced  by  these  types  of  products.  In 

addition, the smoke and/or aromatics (scents) 

may be reburnt in the vent-free appliance 

which can produce odors. It is recommended to 

minimize the use of candles, incense, etc. while 

the vent-free appliance is in operation.

15. 

This is an unvented gas-fired heater. It uses air 

(oxygen) from the room in which it is installed. 

Provisions for adequate combustion and 

ventilation air must be provided.

16.  This heater shall not be installed in a room or 

space unless the required volume of indoor 

combustion air is provided by the method 

described in the National Fuel Gas Code, ANSI 

Z223.1/NFPA 54, the International Fuel Gas Code 

or applicable local codes.

17. 

An  unvented  room  heater  having  an  input 

rating  of  more  than  10,000  Btu  per  hour  shall 

not be installed in a bedroom or bathroom.

18.  Keep room area clear and free from combustible 

materials, gasoline and other flammable vapors 

and liquids.

19. 

Unvented gas heaters are a supplemental zone 

heater. They are not intended to be a primary 

heating appliance.

20. 

Unvented  gas  heaters  emit  moisture  into 

the  living  area.  In  most  homes  of  average 

construction, this does not pose a problem. In 

houses of extremely tight construction, addition 

mechanical ventilation is recommended.

21. 

During 

manufacturing, 

fabricating 

and 

shipping, various components of this appliance 

are  treated  with  certain  oils,  films  or  bonding 

agents. These chemicals are not harmful but 

may produce annoying smoke and smells as 

they are burned off during the initial operation 

of the appliance; possibly causing headaches 

or eye or lung irritation. This is a normal and 

temporary occurrence. The initial break-in 

operation should last two to three hours with 

the burner at the highest setting. Provide 

maximum ventilation by opening windows 

or doors to allow odors to dissipate. Any odors 

remaining after this initial break-in period will 

be slight and will disappear with continued use.

22. 

Input  ratings  are  shown  in  BTU  per  hour  and 

are for elevations up to 2,000 feet. For elevations 

above 2,000 feet, input ratings should be 

reduced 4% for each 1,000 feet above sea level. 

Refer to the National Fuel Gas Code.

23.  The appliance and its appliance main gas valve 

must be disconnected from the gas supply 

piping system during any pressure testing of 

that system at test pressures in excess of 1/2 

psig (3.5 kPa).

24. The appliance must be isolated from the gas 

supply piping system by closing its equipment 

shutoff valve during any pressure testing of 

the gas supply piping system at test pressures 

equal to or less than 1/2 psig (3.5 kPa).

25. 

Do not use this room heater if any part has been 

under water. Immediately call a qualified service 

technician to inspect the room heater and to 

replace any part of the control system and any 

gas control which has been under water.

26.  Never burn solid fuels in an unvented room 

heater, fireplace or stove.

27. 

Do not set kettles or humidifying devices on top 

of stove.

28. The stove door/screen must be closed when the 

appliance is operating. The screen shall have 

openings for induction of combustion air.

SAFETY INFORMATION

Summary of Contents for AGC500VF

Page 1: ...erence Please read this manual BEFORE installing and operating this unit 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 Leave the building immediately Immediately call your gas supplier from a neigh...

Page 2: ...EATER OR ITS CONTROLS CAN CAUSE DEATH OR SERIOUS INJURY READ AND FOLLOW INSTRUCTIONS AND PRECAUTIONS IN USER S INFORMATION MANUAL PROVIDED WITH THIS HEATER DO NOT ALLOW FANS TO BLOW DIRECTLY INTO THE STOVE AVOID ANY DRAFTS THAT ALTER BURNER FLAME PATTERNS DO NOT USE A BLOWER INSERT HEAT EXCHANGER INSERT OR OTHER ACCESSORY NOT APPROVED FOR USE WITH THIS HEATER WHERE APPLICABLE IMPORTANT READ THIS O...

Page 3: ...Brand___________________________________ If no Date of inspection of existing venting system _______________________________________________________ COMMISSIONING Confirm Hearth Pad Installation as per Installation Instructions Confirm proper placement of internal parts Check soundness of door gasket and door seals Confirm clearances to combustibles as per installation instructions in this manual ...

Page 4: ...sed professionals for the installation of hard wired carbon monoxide detectors In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic the hard wired carbon monoxide detector with alarm and battery back up may be installed on the next adjacent floor level In the event that the requirements of this subdivision can not be met at the time of ...

Page 5: ...tay away to avoid burns or clothing ignition 3 Young children should be carefully supervised when they are in the same room with the appliance 4 Do not place clothing or other flammable material on or near the appliance 5 Any safety screen or guard removed for servicing an appliance must be replaced prior to operating the heater 6 Installation and repair should be done by a qualified service perso...

Page 6: ...tain oils films or bonding agents These chemicals are not harmful but may produce annoying smoke and smells as they are burned off during the initial operation of the appliance possibly causing headaches or eye or lung irritation This is a normal and temporary occurrence The initial break in operation should last two to three hours with the burner at the highest setting Provide maximum ventilation...

Page 7: ...d to reduce supply pressure to a maximum of 13 0 w c for LP systems IGNITION CONTROLS Piezo ignitor allows ignition of the pilot without the use of matches Millivolt control has four 4 positions OFF All gas to the burner is shut off at the valve IGN Valve position to light maintain a standing pilot ON Valve position to turn burners on off LOW HI Variable position to control flame height heat outpu...

Page 8: ... THE GAS TECHNICIAN WILL NEED FOR INSTALLATION You must have the following items available before proceeding with installation External regulator for Propane LPG or high pressure natural gas 1 to 2 psi system Piping which complies with local codes Sediment trap recommended Pipe wrench Pipe sealant approved for use with propane LPG resistant to sulfur compounds Manual shutoff valve Tee joint Screwd...

Page 9: ...TALLED ON A CARPET TILE OR OTHER COMBUSTIBLE MATERIAL THE APPLIANCE SHALL BE INSTALLED ON A NONCOMBUSTIBLE MATERIAL PANEL EXTENDING THE FULL WIDTH AND DEPTH OF THE APPLIANCE D Minimum to Side Wall E Minimum to Side Wall A Front View Ceiling Mantel Side Wall F Minimum 36 in Front C B Side View Ceiling G G Corner Installation D Minimum to Either Side Wall F Minimum Wall Installation A Min Ceiling Fr...

Page 10: ...ION CAUTION THE APPLIANCE IS VERY HEAVY THE ASSISTANCE FROM A SECOND PERSON IS STRONGLY SUGGESTED PLEASE USE PROPER LIFTING TECHNIQUE WHEN POSITIONING THE APPLIANCE FOR ASSEMBLY AND INSTALLATION 1 Remove the two 2 straps and open the wrapping Slide the bag to the bottom of the unit ON OFF LOGS Pallet Wrapping Straps 2 Lift up on the ash lip Pivot it back and down to open the control door Leg is re...

Page 11: ...ed for pictorial purposes only Screen UP BACK Side of unit is removed for pictorial purposes only 5 Remove the log box from inside the unit Lift the unit off the pallet NOTE Make sure to lift the unit up high enough to clear the upright supports the unit is sitting on PIL OT OFF L O G S Log Box 6 Reverse steps 2 4 to reinstall the screen and front of the stove CAUTION THE APPLIANCE IS VERY HEAVY T...

Page 12: ...pply must be the same as stated on the heater s rating plate If the gas supply is different DO NOT INSTALL THE HEATER Contact your dealer for the correct model Pipe Coupling To Heater Valve Gas Supply Inlet Manual Shutoff Valve Pipe Stainless Flexible Tube Locations that the Pressure Tapping Point May Be Installed ELECTRICAL WIRING MILLIVOLT The millivolt valve is a self powered combination gas co...

Page 13: ...ch or Remote ODS Pilot Millivolt Valve CONNECTION 1 TP TH 2 TP 3 TH Wiring Diagram Switch Spade Terminal On Off Switch ODS Pilot 3 1 2 ELECTRICAL WIRING MILLIVOLT B Thermopile Output Reading Check B Reading Thermostat contacts open Main burner off Check gas pressure to the unit If gas pressure is within minimum and maximum on data plate then check pilot voltage 325 millivolts minimum If the minimu...

Page 14: ...t Bracket Studs Burner Ports 1 To install the back log 1 position on rear log support bracket and then press down over studs Left Bottom Log 2 Back Log 1 Top Left Log 4 Right Bottom Log 3 Right Bottom Log 3 Right Top Log 5 Rear Log Support Bracket Left Log Support Bracket Right Log Support Bracket PIL OT OFF Left Bottom Log 2 Back Log 1 Right Top Log 5 PIL OT OFF Left Bottom Log 2 Top Left Log 4 R...

Page 15: ...t Bottom Log 3 Log 5 CAUTION DURING INITIAL OPERATION OF THE NEW HEATER BURNING LOGS WILL GIVE OFF A PAPER BURNING SMELL AND ORANGE FLAMES WILL BE PRESENT SIMPLY OPEN THE WINDOWS FOR A FEW HOURS TO VENT THE ODOR GLOWING WOOL PLACEMENT Provided with your log set is a package of Glowing Embers rock wool Break up the glowing wool into small dime sized pieces or for a finer finish use a metal wire bru...

Page 16: ...ms or bonding agents These chemicals are not harmful but may produce annoying smoke and smells as they are burned off duringtheinitialoperationoftheappliance possibly causing headaches or eye or lung irritation This is a normal and temporary occurrence The initial break in operation should last two to three hours with the burner at the highest setting Provide maximum ventilation by opening windows...

Page 17: ...n 5 Wait five 5 five 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 label If you don t smell gas go to the next step 6 From the OFF position turn the gas control knob counterclockwise to the IGN position Push in the control knob for 5 five second 7 With the control knob pushed in push in and release the pieso ignito...

Page 18: ...he burner air intake holes Remove lint or particles with a vacuum brush or some pipe cleaners Failure to keep air intake holes clean will result in sooting and poor combustion The external case should be dusted and wiped with a moist cloth Annual Cleaning Inspection Refer to parts diagram for location of items Inspect and clean burner air intake holes Remove lint or particles with a vacuum brush o...

Page 19: ...t hair spray glues etc Ventilate room Stop using odor causing products while heater is running Gas leak Locate and correct all leaks Initial burn off Ventilate room and turn unit on high until odor is gone Odor should be gone after 6 hours of continuous use Appliance shuts off during use Not enough fresh air is available for ODS pilot to operate Open window and or door for ventilation Low line pre...

Page 20: ...eplace burner orifice Slight smoke or odor during initial operation Burner orifice is clogged or damaged Clean burner or replace burner orifice Burner is damaged Replace burner Gas regulator defective Replace gas regulator Logs appear to smoke after initial operation Vapors from paint or curing process of logs Problem will stop after a few hours of operation Run the heater with the damper open if ...

Page 21: ... 2021 United States Stove Company 21 15 10 9 18 17 16 19 20 21 23 25 24 26 27 28 29 4 7 5 1 2 3 8 12 6 11 14 13 22 REPLACEMENT PARTS ...

Page 22: ... 1 9 892537 7 Control Panel 1 10 892537 8 Control Cover 1 11 40854 Leg 1 12 610120 Front Screen Assy 1 13 40859 Ash Bar 1 14 40858 Control Cover 1 15 40855 Front 1 16 89921 ODS Pilot Assembly NAT 1 89922 ODS Pilot Assembly LP 1 17 81211 06 Rear Burner 1 18 81211 05 Front Burner 1 19 81211 12 VF Valve Tube 1 20 81202 Control Valve LP 1 81198 Control Valve NAT 1 21 89761 Piezo Ignitor 1 22 81212 14 ...

Page 23: ...07 Date ______________________ Engineer Name ________________________________ License No _____________________________________ Company ______________________________________ Telephone No __________________________________ Stove Inspected Chimney Swept Items Replaced ________________________________ Service 02 Date ______________________ Engineer Name ________________________________ License No ___...

Page 24: ...24 2021 United States Stove Company NOTES ...

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