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United States Stove B9945L manual

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Table of contents for the manual

  • Page 1

    Propane (LPG) Model B9945L Natural Gas Model B9945N UNITED STATES STOVE COMPANY 227 Industrial Park Road • P.O. Box 151 • South Pittsburg, TN 37380 • (423) 837-2100 VENT -FREE PEDEST AL GAS HEA TER INST ALLA TION AND OPERA TION INSTR UCTIONS This is an unvented gas-fired heater . It uses air (oxygen) from the room in which it is installed. Pr[...]

  • Page 2

    T ABLE OF CONTENTS TC NOTICE Installation and repair must be done by a qualified service person. The appliance should be inspected before use and at least annually by a professional service person. More frequent cleaning may be required due to excessive lint from carpeting, bedding material, etc. It is imperative that control compartments, burners [...]

  • Page 3

    CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the flu with headaches, dizziness and/or nausea. If you have these signs, obtain fresh air immediately. Have the heater serviced as it may not be operating properly. The installation must conform with local codes or, in the absence of local codes, with the National F[...]

  • Page 4

    PR ODUCT FEA TURES IMPOR T ANT SAFETY INFORMA TION Do not place clothing or other flammable material near the appliance. Keep appliance area clear and free from combustible materials, gasoline and other flammable vapors and liquids. Any safety screen or guard removed for servicing must be replaced prior to operating the heater. This vent-free gas h[...]

  • Page 5

    SPECIFICA TIONS Natural Gas Manifold Pressure Setting 4" w.c. Gas Inlet Pressure Maximum 10-1/2" w.c. Minimum 5" w.c. Gas Rate Number Model Number Type Max BTU/Hr Min BTU/Hr o f Burners 9945N Manual 39,900 27,000 1 Propane / LPG Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c. Manifold P[...]

  • Page 6

    This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. Unusually tight construction is defined as construction where: (a) Walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of 1 perm (6 x[...]

  • Page 7

    INST ALLA TION The following formula can be used to determine the maximum heater rating per the definition of unconfined space: BTU/HR = (L1+L2) Ft x (W) Ft x (H) Ft x 1000 50 Consider two connecting rooms with an open area between, with the following dimensions:(See Fig. 2, Example) L1=15-1/2 Ft., L2=12 Ft., W=12 ft., H=8Ft 50 =52800 BTU/HR If the[...]

  • Page 8

    8 MANTEL CLEARANCES If placing a custom mantel above the heater, you must meet minimum clearances between mantel shelf and the top of the heater. If your installation does not meet the below minimum clearances, you must: • Raise the mantel to an acceptable height, OR • Remove the mantel. ALL MINIMUM DISTANCES ARE IN INCHES TOP OF HEATER DISTANC[...]

  • Page 9

    GAS CONNECTION NOTICE CAUTION IMPORTANT: Loosen the pipe adapter on the flex tube before installing to the system piping. FIGURE 5. Gas Connection 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 for the correct model. Connecting d[...]

  • Page 10

    10 GAS CONNECTION GAS PRESSURE CHECK FIGURE 6. Rear View of 9945 Vent-Free Gas Heater The gas inlet connection is 3/8" NPT, made at the side of the main control through the area at the rear of the pedestal. Test all gas joints from the gas meter to the heater for leaks using soap and water solution after completing connection. DO NOT USE AN OP[...]

  • Page 11

    1) Remove the two(2) screws and lift the front screen slightly up. (Fig. 7A) Then tilt the bottom of the screen inward and downward. (Fig. 7B) 2) Lean the top of the screen toward you slightly (Fig. 7B) and then proceed to carefully bring the screen straight back (Fig. 7C). NOTE: To reinstall the front screen, reverse steps 1 & 2. 11 REMOVING F[...]

  • Page 12

    12 OPERA TING INSTR UCTIONS Avoid any drafts that alter the burner flame patterns. Do not allow fans to blow directly into the heater. Do not place a blower inside burn area of firebox. Ceiling fans may create drafts that alter burner flame patterns. Sooting and improper burning will occur. This vent-free gas heater is intended to be smokeless. If [...]

  • Page 13

    1 . STOP! Read the safety information on the previous page. 2 . Set the thermostat to lowest setting. 3 . Turn off all electrical power and open the access door. 4 . Push in gas control (B) slightly and turn clock wise to "OFF". 5 . Push "ON / OFF" switch to "OFF" position. NOTE: Knob cannot be turned from "PILOT&[...]

  • Page 14

    Annual inspection and cleaning by your dealer or qualified service technician is recommended to prevent malfunction and/or sooting. Remove front screen, (see page 11). Carefully lift screen from locating stubs and set aside during cleaning. Refer to instructions on page 11 for installation of screen. Do not operate the unit with the screen removed.[...]

  • Page 15

    FIGURE 11. Flames - Natural Gas and LP Gas 15 CLEANING / SER VICING Periodic Cleaning • Do not use cleaning fluid to clean logs or any part of heater. • Logs - Brush with soft bristle brush or vacuum with brush attachment. • Vacuum loose particles and dust from the front and rear burner, control, and piezo. • Inspect burner's and air i[...]

  • Page 16

    14 16 HEA TER ASSEMBL Y REPLA CEMENT P AR TS 5 3 9 7 6 18 10 4 17 15 16 8 12 11 13 2 1 20 19[...]

  • Page 17

    K E Y PART # DESCRIPTION QTY. 1 B24767 BASE 1 2 B69198 PEDESTAL WELDMENT 1 3 24891 FIREBOX BOTTOM (NATURAL) 1 4 24768 FIREBOX BOTTOM (L.P. PROPANE) 1 5 24772 F I REBOX WRAPPER 1 6 B24769 CABINET WRAPPER 1 7 24771 F I R E B O X T O P 1 8 24770 FRONT 1 9 B24773 C A B I N E T T O P 1 1 0 24774 LOUVER FRAME 1 1 1 B24457 CONTROL DOOR 1 1 2 89899 BRASS K[...]

  • Page 18

    BURNER & LOG ASSEMBL Y 18 11 1 17 15 16 14 3 2 8 7 9 10 6 4 5 12 13[...]

  • Page 19

    19 P AR TS LIST FOR GENERA T OR AND LOG ASSEMBL Y K E Y PART # DESCRIPTION QTY. 1 24777 BURNER PLATE 1 2 24881 CONTROL BRACKET 2 3 81198 CONTROL VALVE (NATURAL) 1 - 81202 CONTROL VALVE (LIQUID PROPANE) 1 4 83464 10-32 x 3/8 PH HD MACHINE SCREW 4 5 89937 BURNER GAS LINE (# 31 ORIFICE-NAT.) 1 - 89938 BURNER GAS LINE (# 49 ORIFICE-L.P.) 1 N/ S 83172 #[...]

  • Page 20

    20 TROUBLESHOOTING T urn off and let cool before servicing. Only a qualified service person should service and repair heater . NOTE: All troubleshooting items are listed in order of operation. REMEDY POSSIBLE CAUSE OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/Pilot. • Ignitor electrode positioned wrong • Ignitor ele[...]

  • Page 21

    21 TROUBLESHOOTING, CONTINUED... ODS/Pilot lights, but flame goes out When control knob is released. (continued from page 20) One or both burners do not light after ODS/pilot is lit. Burner backfires during combustion. Slight smoke or odor during initial operation. Logs appear to smoke after initial operation. Heater produces a whistling noise when[...]

  • Page 22

    22 OPTIONAL KITS FOR THE 9945 THIS OPTIONAL F40 BLOWER KIT IS AVAILABLE WHERE YOU PURCHASED THIS HEATER OR YOU CAN ORDER DIRECT FROM THE FACTORY BY CONTACTING THE PARTS DEPARTMENT AT THE NUMBER AND ADDRESS ON THE BACK PAGE OF THIS MANUAL. BACK VIEW OF 9945 MODEL: RCK60 REMOTE CONTROL KIT REMOTE SKYTECH SKYTECH 1001 ON OFF INDICATOR R E M O T E NO O[...]

  • Page 23

    23 CONTROL WIRING TERMINALS ROCKER SWITCH THERMOPILE WIRING DIA GRAM FOR GENERA T OR ASSEMBL Y 50 60 70 80 90 21 10 32 c 50 60 70 80 90 21 10 32 c MODEL: WSK60 W ALL SWITCH KIT OPTIONAL KITS FOR THE 9945 continued... MODEL: WTK60 W ALL THERMOST A T KIT[...]

  • Page 24

    The following Wiring Guide is to help assist in the wiring of any combination of the Optional Kit listed below: RCK60 - REMOTE CONTROL KIT WSK60 - W ALL SWITCH KIT WTK60 - W ALL THERMOST A T KIT IMPORT ANT : Bef ore ordering or installing any to the av ailable kits , remember the follo wing... 1) Not all Optional Kits will work together . Example: [...]

  • Page 25

    WIRING GUIDE FOR 9945 continued... WIRING WITH THE WSK60 - W ALL SWITCH KIT : P I L O T O F F P I L O T O N S it E A TP TH TP TH ROCKER SWITCH CONTROL VALVE WALL SWITCH PIGGYBACK DISCONNECT WIRING WITH THE WTK60 - W ALL THERMOST A T KIT AND THE RCK60 - REMO TE CONTR OL KIT : WIRING WITH THE WSK60 - W ALL SWITCH KIT AND THE RCK60 - REMO TE CONTR OL [...]

  • Page 26

    NOTES 26[...]

  • Page 27

    LIMITED W ARRANTY POLICY This vent-free gas heater is warrantied for a period of one year, logs for one year, and burners for One Year, from date of purchase against defects in material or workman- ship. This warranty covers only the cost of defective parts and applies only to the original consumer purchaser. The replacement of defective parts will[...]

  • Page 28

    OWNERS MANUAL HO W T O ORDER REP AIR P AR TS OR "OPTIONS" BEFORE INSTALLING YOUR HEATER, FILL IN THE SERIAL NUMBER IN THE SPACE PROVIDED ABOVE FOR YOUR RECORDS. 1. The PART NUMBER 2. The PART DESCRIPTION 3. The MODEL NUMBER: 9945N 9945L 4. The SERIAL NUMBER THIS MANUAL WILL HELP YOU TO OBTAIN EFFICIENT, DEPENDABLE SERVICE FROM THE FURNACE[...]