United States Stove DV12 User's Manual
Contents
1. sm SS Loop USSC 0 12 REPAIR PARTS 15 USSC DV12 REPAIR PARTS LIST DESCRI PTI ON Glass Support Combustion Chamber Glass Ceramic Fibre Glass Gasket Long Ceramic Fibre Glass Gasket Short Combustion Chamber Ceramic Fibre Washer D57 D43 Air Intake Tube Spacing Bolt Ceramic Fibre Washer D71 D57 Burner Assembly Gasket Gas Intake Fitting Gas Intake Lock Fitting Gas Fitting Support Control Insulation Piezo Ignitor Nut Control Bracket Piezo Ignitor Bracket Piezo Ignitor Piezo Ignitor Button Knob Frame Control Rod Control Knob Cabinet Back Top Deflector Left Side Deflector Right Side Deflector Air Chamber Cabinet Front Cabinet Glass Support Cabinet Glass Grill Cast Aluminum LONGVIE Logo Cabinet Slide Loop 3 BIN Re e e emm ea ea e e mu o 16 USSC BURNER ASSEMBLY REPAIR PARTS 17 USSC BURNER ASSEMBLY REPAIR PARTS LIST 18 m lt DESCRI PTI ON Control Rod Plate Control Rod Set Screw 1 8 x 15 Eurosit Valve By Pass 50 for model DV12 LP Eurosit Valve B2. USSC 19 Keeping America Warm Since 1869 DV12 DV20 Owner s Manual When writing always give the full model number which is on the nameplate attached to the fireplace When ordering repair parts or options always give the following information as shown in this list The PART NUMBER The PART DESCRIPTION The MODEL NUMBER C DV12 DV20 The SERIAL NUMBER Save this manual for future reference United States Stove Company 227 Industrial Park Road P O Box 151 South Pittsburg TN 37380 423 837 2100 20 USSC
3. USSC INTRODUCTION Your LONGVIE heater is especially designed to provide maximum comfort to you and your home Its large solid injected aluminum front grill assures the optimum use of the generated heat in the ambient maintains normal temperatures behind the heater to avoid sticking of particles which would soil the wall You can feel safe with absolute security guaranteed by Its thermocouple security valve which cuts the supply of gas in the event of the heater extinguishing due to strong air currents momentary interruption of the supply of gas e Its gas pressure regulator assures an optimum operational function avoiding peak pressures in the gas supply affecting normal combustion gas tight combustion chamber totally enameled avoids gases which are caused by combustion to contaminate the air and ensures a useful long lasting working life Long lasting working life Guaranteed by the quality of its components and high technology applied in the process of fabrication and especially by the traditional vocation of LONGVIE to produce durable products for your maximum comfort and satisfaction LOCAL CODES Install and use the heater with care The installation must conform with local codes or in the absence of local codes use the latest edition of The National Fuel Gas Code ANSI Z223 1 NFPA 54 Natural Gas and Propane Installation Code CSA B149 1 A manufactured home USA only or mobile home OEM installation mus
4. Housing Terminal N 4 m Female 2 Terminal Female Terminal _Green Ground SS ni Supply Cord Y _ E J Female BJ Terminal w White Black from power supply Ground Green White from power supply Ground Blower Motor Wiring Schematic USSC DV20 REPAIR PARTS 13 USSC DV20 REPAIR PARTS LIST 14 DESCRI PTI ON 3 Glass Support Combustion Chamber Glass Ceramic Fibre Glass Gasket Long Ceramic Fibre Glass Gasket Short Combustion Chamber Ceramic Fibre Washer D57 D43 Air Intake Tube Spacing Bolt Ceramic Fibre Washer D71 D57 Flue Gas Exit Tube Large Flue Gas Exit Tube Small Ceramic Fibre Washer D57 D43 Burner Assembly Gasket Gas Intake Fitting Gas Intake Lock Fitting Gas Fitting Support Control Insulation Piezo Ignitor Nut Control Bracket Piezo Ignitor Bracket Piezo Ignitor Piezo Ignitor Button Knob Frame Control Rod Control Knob Cabinet Back Top Deflector Left Side Deflector Right Side Deflector Air Chamber Cabinet Front Cabinet Glass Support Cabinet Glass Grill Cast Aluminum LONGVIE Logo Cabinet Slide
5. kPa The appliance must be isolated from the gas supply piping system be 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 This gas appliance must not be connected to a chimney flue serving a separate solid fuel burning appliance The installation make provisions for adequate combustion and ventilation air The installation must provide adequate accessibility clearances for servicing The efficiency rating of this appliance is a product thermal efficiency rating determined under continuous operating conditions and was determined independently of any installed system The minimum inlet gas supply for the purpose of input adjustment Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control that has been under water USSC 3 3 9 16 9 cm 18 3 4 47 5 15 in 38 cm 8 1 2 21 5 cm os Qmm 2 316 5 5 cm 05 16 28mm 19 cm INLET 7 1 2 GAS 57 5 VENTILATION INSTALLATION The ventilation system consist of 1_External Tube Air incoming tube with enamel hood riveted in place 1 Internal Tube Outgoing flue gases For Model DV12 Mark the three 5 16 8mm holes and drill Insert the three
6. light any appliance Do not touch any electric 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 C Useonly your hand to push in or turn the gas control 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 Force or attempted repair may result in a fire or explosion D Donotusethis applianceif any parthas been under water Immediately call a qualified service technicianto inspect the appliance and to replace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS 1 STOP Read the safety information above on this page Piezo Ignition Button Press the knob lightly and turn clockwise 677 to the OFF position NT OFF Poston HI Position X Wait five 5b minutes to clear out any gas If you then smell gas STOP Follow zi B in the safety information above on this page If you don t smell gas go to the next step Find the pilot by looking through the viewing window on the front of the unit Press the knob down lightly and turn counterclockwise Y to the Pilot Lo Press again downwards LO Position 6 Press the Piezo Ignition button to light the pilot Repeat this operation with the knob
7. not on the valve side Remove the two 2 M4 screws that hold the pilot in place Clean with a vacuum cleaner or use a can of compressed air To Remove Burner Loosen the gas line from the burner on the right side of the unit On the left side of the unit unscrew the nut that holds the burner in place Then remove the burner Clean with a vacuum cleaner or use a can of compressed air Note You can remove the main burner pilot assembly if you don t unscrew the M4 screws that hold the pilot to the burner Before reinstalling the assembly check the ceramic fiber sealing gasket If itis damaged or worn replace with new gasket available from your dealer STEP 6 Reassembly the unit back to its original state and mount the unit to the wall Properly reassemble and reseal the vent air intake system STEP 7 Reconnect the gas supply and check for leaks using a soapy water solution Bubbles on any of the joints indicate a leak is present and must be repaired Turn off the gas when making such repairs Check to make sure that the piezo ignitor still lights the pilot STEP 8 Whilethe main burner is ON Check the flames to verify that they are burning a clean blue color See Diagrams 10 12 Note After maintenance the first few minutes of the heater operation will probably have some yellowish flying traces in the flame due to the burning of particles left behind during the cleaning operation Liquid Propane will have some evidence of yellow ti
8. paved sidewalk or paved driveway that is located between two single family dwellings and serve both dwellings f Permitted only if verdana porch deck or balcony is fully open on a minimum of two sides beneath the floor For clearnaces not specified ANSI Z223 1 NFPA 54 or CSA B149 1 one of the following shall be indicated a A minimum clearances valve determined by testing in accordance with section 2 19 6 or b A reference to the following footnote Clearance in accordance with local installation codes and the requirements of the gas supplier USSC VENTILATION INSTALLATION continued 8 1 4 21 cm A A DV 20 26 66 cm DV 12 15 38 cm 4 5 16 11cm 4 1 8 10 5cm pe d EE Gas Valve 15 3 4 40 cm See Mounting Detail Drywall Anchor USSC GAS CONNECTION A qualified gas appliance installer must connect the heater to the gas supply Consult all local codes Use new black iron or steel pipe only Internally tinned copper tubing can be used in some areas when permitted by local codes Only use pipe of 1 2 or greater diameter to allow full gas volume to heater Excessive pressure loss will occur if the pipe is too small A manual shutoff valve union and plugged 1 8 NPT pressure tapping point must be installed upstream of the heater FIGURE 6 CAUTION A sediment trap must be installed upstream of the heater to prevent moisture and co
9. plastic plugs provided in the previously drilled holes Mark the hole for the 4 1 2 11 5cm dia ventilation tube This must be rectilinear and with a slight fall towards the ex terior of approx 2 degrees to avoid the entering of rain water Take into consideration the area indicated for the gas con nection The wall s thickness cannot be less than 4 1 2 11 5 cm nor can it exceed 13 1 2 35cm See Diagram 5 Tube lengths and threaded mounting rod should be trimmed to comply to the dimensions shown in Diagram N 3 For Model DV20 Mark the four 4 5 16 8mm holes and drill Insert the four 4 plastic plugs provided in the previously drilled holes Mark the hole for the 6 1 4 16cm dia ventilation tube This must be rectilinear and with a slight fall towards the exterior of approx 2 degrees to avoid the entering of rain water Take into consideration the area indicated for the gas con nection The wall s thickness cannot be less than 4 1 2 11 5 cm nor can it exceed 13 1 2 35cm See Diagram 5 Tube lengths and threaded mounting rod should be trimmed to comply to the dimensions shown in Diagram N 4 Final Assembly Remove the front cover of the heater by removing the control knob and the two 2 screws on the top of the cover Slide the front upwards After tubes have been cut to length slide the tubes and the rod into position on the heater and adjust with the nut pro vided until you get a comp
10. pressed down until the pilot has lit When the pilot lights continue holding Thermocouple pressure for another 10 seconds Release the knob Ifthe pilot goes out repeat the process 1 through 6 Piezo vo Ifthe knob does not pop up when released stop and immediately call your ser Ignitor vice technician or gas supplier Ifthe pilot will not stay lit after several tries turn the gas control knob to OFF and call your service technician or gas supplier Pilot 7 Press down and turning the control knob counterclockwise Y to the Hood desired temperature The temperature can be regulated between HI and LO E capacity according to the indicated scale marked on the knob When the heater is first started after installation or if the heater has not been used for a long period of time there is a normal delay of gas from the gas supply through the gas control on the heater In this case maintain pressure on the knob at the Pilot position for 30 40 seconds and then try the piezo lighter TURN OFF GAS TO APPLIANCE When the heater is not to be in use for a long period of time or for servicing turn the control knob clockwise eN the OFF position and close the main gas supply valve 10 USSC MAINTENANCE INSTRUCTIONS As with all fuel burning appliances it is important to conduct periodic maintenance functions that will allow for contin ued safe efficient operation of the unit We suggest that before every heating se
11. 4 1 2 11 5cm Maximum wall thickness 13 1 2 35 cm Diagram 5 Diagram 6 Diagram N 7 IMPORTANT The appliance s vent cap should be at least 24 in 61 cm from any outside adjacent or intersecting wall IMPORTANT The appliance s venting system should be inspected at least once a year and cleaned if necessary IMPORTANT THE VENT AIR INTAKE SYSTEM MUST BE PROPERLY INSTALLED TO IN SURE PROPER AND SAFE OPERATION 6 USSC VENTILATION INSTALLATION continued V VENT TERMINAL 09 AIR SUPPLY INLET INSIDE E CORNER PEINE Vi AREA WHERE TERMINAL IS NOT PERMITTED US Installation 2 Canadian Installation Clearance above grade veranda porch 12 inches 30 cm 12 inches 30 cm deck or balcony B Clearnace to window or door that may be 6 inches 15 cm for appliance lt 10 000 BTU hr 6 inches 15 cm for appliance lt 10 000 BTU hr opened 3 kW 12 inches 30 cm for appliance gt 10 000 3 kW 9 inches 23 cm for appliance gt 10 000 BTU hr 3 kW and lt 100 000 BTU hr 30 kW BTU hr 3 kW and lt 50 000 BTU hr 15 kW 12 36 inches 91 cm for appliances gt 100 000 BTU inches 30 cm for appliances gt 50 000 BTU hr hr 30 kW 15 kW C Clearance to permanently closed window T D Vertical clearance to ventilated soffit lo T cated above the terminal withi
12. act unit Slide the heater and ventilation assembly through the hole until the heater reaches the wall For the model DV12 se cure to the wall with the three 3 screws provided For the model DV 20 secure to the wall with the four 4 screws pro vided 1 Threaded Mounting Rod 1 Adjusting Nut TOTAL LENGTH OF EXTERNAL TUBE WITH HOOD WALL THICKNESS 4 3 4 120mm Le 41 44 10 8cm gt TO HEATER TOTAL LENGTH OF ROD WALL THICKNESS 5 127mm 1 25 4mm TOTAL LENGTH OF INTERNAL TUBE WALL THICKNESS 3 1 2 90mm Diagram 3 TOTAL LENGTH OF EXTERNAL TUBE WITH HOOD WALL THICKNESS 4 1 4 108mm 1 44 10 8cm FLUSH WITH WALL HEATER TOTAL LENGTH OF ROD WALL THICKNESS 5 127mm TOTAL LENGTH OF INTERNAL TUBE WALL THICKNESS 2 1 2 64mm Diagram 4 Check that hood protrudes the intended 4 1 4 10 8 cm from the exterior wall Seal any imperfections between wall and vent hood with putty making sure that nothing falls inside the hood See Diagram 6 A protection plate resistant to high temperatures is available at extra cost for use with external combustible walls See Diagram 7 USSC VENTILATION INSTALLATION continued Minimum wall thickness
13. ason or at least once a year conduct the following minimum service functions STEP 1 The gas supply should be turned OFF at the shutoff valve in the supply line leading to the appliance or at the gas source The gas to the unit should then be disconnected so the unit can be removed from the wall STEP 2 Remove the front cover by removing the control knob and the two 2 screws on the top of the front Then slide the front upwards STEP 3 Carefully examine the interior of the vent pipe If you notice any blockages or obstruction that was not part of the unit when it was installed Clean the pipes and prepare them for reattachment to the unit The vent system should be inspected periodically or at least once a year and cleaned if necessary If removal of the venting is required follow the instructions in the Ventilation Installation section of this manual for reassembly STEP 4 Look inside the openings of the rear of the unit and check for foreign materials Remove any objects which may block or obstruct the free flow of combustion and ventilation air STEP 5 Visually check the pilot and the main burner for signs of excessive dirt or debris through the heat exchanger front glass If you find any of these follow the directions below to reach the components to clean otherwise continue to the next step To Remove Pilot Find the pilot Loosen the head of thermocouple disconnect the pilot gas supply line only on the side of the pilot
14. n horizon tal distance of 2 feet 61 cm from the cen ter line of the terminal E Clearnace to unventilated soffit n il Clearance to outside corner E Clearnace to inside corner i Clearnace to each side of center line ex 3 feet 91 cm within a hieght 15 feet 4 5 m 7 tended above meter regulator assembly above the meter regulator assembly l Clearance to service regulator vent outlet 3 feet 91 cm Clearance to nonmechanical air supply in 6 inches 15 cm for appliance lt 10 000 BTU hr 6 inches 15 cm for appliance lt 10 000 BTU hr let to building or the combustion air inlet to 3kW 12 inches 30 cm for appliance gt 10 000 3kW 9 inches 23 cm for appliance gt 10 000 any other appliance BTU hr 3kW and lt 100 000 BTU hr 30 kW BTU hr 3kW and lt 50 000 BTU hr 15 kW 12 36 inches 91 cm for appliance gt 100 000 BTU inches 30 cm for appliance gt 50 000 BTU hr hr 30 kW 15 kW Clearance to a mechanical air supply inlet 6 feet 1 83 m 3 feet 91 cm above if within 10 feet 3 horizontally L Clearnace above paved sidewalk or paved 7 feet 2 13 t id driveway located on publis property M Clearance under veranda porch deck or 12 inches 30 cm balcony 1 In accordance with the current CSA B149 1 Natural Gas and Propane Installation Code 2 In accordance with the current ANSI Z223 1 NFPA 54 National Fuel Gas Code T Aventshall not terminate directly above a
15. ntaminants from passing through the pipe to the heater controls and burners Failure to do so could prevent the heater from operating reliably FIGURE 8 IMPORTANT Loosen the pipe adapter on the flex tube before installing to the system piping Manual Shutoff y PIA Valve Flexible Gas Hose If allowed by local codes From External Regulator Tee Joint Sediment Pipe 7 Trap ut Cap Diagram N 9 Gas Connection 3 Minumum CHECK GAS TYPE The gas supply must be the same as stated on heater s rating plate If the gas supply is different DO NOT INSTALL the heater Contact your dealer forthe correct model Connecting directly to an unregulated propane LPG tank can cause an explosion Reattach the front to the unit Use the same screws removed in the instructions on page 5 Reinstall the control knob USSC 9 OPERATING INSTRUCTIONS MO FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of life A This appliance has a pilot which can be light with the equipped piezo ignitor When lighting the pilot follow these instructions exactly B BEFORELIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not attempt to
16. ps on the flame Any safety screen or guard removed for servicing an appliance must be replaced prior to operating the appliance Before completing your periodic maintenance check ensure the heater area is kept clean and free from combustible materials gasoline and other flammable vapors and liquids Also check to see that the flow of combustion and ventilation air around the vent cap on the outside of the structure is not obstructed USSC 11 Diagram 10 Correct Flame Pattern y Diagram N 11 Correct Flame Pattern we gt Y sas de ses La S 2 5 AS Optional Blower DVBS DV12 and DVBL DV20 CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing Permanently lubricated bearing system WARNING ELECTRICAL GROUNDING INSTRUCTIONS This appliance is equipped with a three prong grounding plug for your protection against shock hazard and should be plugged directly into a properly grounded three prong re ceptacle Do not cut or remove the grounding prong from this plug 12 Wiring Diagram Rocker Switch Female A _ Fi If any of the original wire as supplied with the appliance must be replaced it must be replaced with 600 volt 150 degree C wire or its equivalent Blower Motor amp
17. safety screen or guard removed for servicing an appliance must be replaced prior to operating the appliance Installation and repair should be done by a qualified service person The appliance should be inspected before use and at least annually by a qualified service person More frequent cleaning may be necessary due to excessive lint from carpeting bedding material etc It is imperative that control compartments burners and circulating air passageways of the appliance be kept clean WARNING Do not operate appliance with the panel removed cracked or broken Replacement of the panel should be done by a licensed or qualified service person Do not spray any aerosol near heater when functioning Do not store these elements near appliance Do not touch the grill to avoid burning yourself Do not touch the gases outlet cap while heater is in operation to avoid burning yourself Avoid blocking air inlet and hot air outlet Do not spill water over the heater as it may cause corrosion Allow heater to thoroughly cool before servicing 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 percent for each 1 000 feet above see level Refer to the National Fuel Gas Code 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
18. t conform with the Manufac tured Home Construction and Safety Standard Title 24 CFR Part 3280 or when such a standard is not applicable the Standard for Manufactured Home Installation ANSI Z225 1 or Standard for Gas Equipped recreational Vehicles and Mobile Housing CSA Z240 4 Available from American National Standards Institute Inc National Fire Protection Association Inc 1430 Broadway Batterymarch Park New York NY 10018 Quincy MA 02269 GAS SPECIFICATIONS MODEL FUEL MAXIMUM INPUT Natural 10 000 BTU hr Liquid Propane 10 000 BTU hr Natural 18 000 BTU hr Liquid Propane 18 000 BTU hr MANIFOLD PRESSURE Natural Gas DV12 5 8 w c DV20 5 2 w c Propane LP Gas DV12 10 8 w c DV20 10 6 w c GAS INLET 3 8 NPT SUPPLY MIN PRESSURE MAX PRESSURE Natural 7 W C P 10 5 W C P Propane LP 11 0 W C P 13 0 W C P USE ONLY THETYPE GAS SPECIFIED ON THE RATING PLATE 2 USSC SAFETY RULES 10 11 12 13 14 15 16 17 18 19 20 21 22 Due to high temperatures the appliance should located out of traffic and away from furniture and draperies Children and adults should be alerted to the hazards of high surface temperatures and should stay away to avoid burns or clothing ignition Young children should be carefully supervised when they are in the same room as the appliance Clothing or other flammable material should not be placed or near the appliance Any
19. y Pass 90 for model DV20 LP Eurosit Valve By Pass 70 for models DV20 N and DV12 N Eurosit Gas Control Valve Liquid Propane Eurosit Gas Control Valve Natural Gas Inlet Fitting 3 8 NPT x 1 4 BSP CO AS Pe NJ ES 5 16 Compression Nut Tube Nut 5 16 x 61 4 Gas Inlet Supply Line N He O Tube Nut 5 16 x 1 4 Thermocouple Piezo Ignitor Cable Pilot Supply Tube 1 4 5 16 Compression Sleeve Tube Nut 5 16 x G1 4 Burner Supply Tube 3 8 dia 5 16 Tube Fitting 5 16 Compression Nut Burner Orifice DV12 Natural Burner Orifice DV12 Liquid Propane Burner Orifice DV20 Natural Burner Orifice DV20 Liquid Propane 1 4 Compression Sleeve 1 4 Compression Nut Pilot Orifice Natural Pilot Orifice Liquid Propane Electrode Fitting Piezo Electrode Pilot Hood Pilot Thermocouple Fitting Burner Base DV20 Burner DV12 Burner as Ea F gt a as a a La a ar ad raa aca a e e a ad aaa USSC VENTING REPAIR PARTS LIST DESCRI PTI ON Outgoing Flue Gases Tube DV20 Internal Air Incoming Tube DV20 External Enameled Vent Cap DV20 Connecting Rod Connecting Rod Nut Outgoing Flue Gases Tube DV12 Internal Air Incoming Tube DV12 External Enameled Vent Cap DV12 o peer ie
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