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CLEANING / SERVICING 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 intake hole. Remove lint or particles with vacuum. • External case should be dusted and wiped with a wet soapy cloth. Annual Cleaning/Inspection • Inspect and clean burner air intake holes. • Inspect and clean a
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HEATER ASSEMBLY REPLACEMENT PARTS 1 2 3 4 5 13 6 11 7 10 12 9 8 15
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PARTS LIST FOR HEATER ASSEMBLY KEY PART # DESCRIPTION QTY. 1 69138 CABINET TOP ASSY. 1 2 69137 FIREBOX BACK WELDMENT 1 3 24606 FIREBOX TOP 1 4 24605 INSIDE BACK 1 5 69136 FIREBOX WELDMENT 1 6 24601 FIREBOX BOTTOM 1 7 69135 PEDESTAL WELDMENT 1 8 24599 PEDESTAL BASE 1 9 24457 CONTROL DOOR 1 10 89336 BRASS KNOB 1 11 83115 10-32 x 1/2 MACHINE SCREW 1 12 24614 FRONT SCREEN (PAINTED) 1 13 89869 BRASS TRIM 2 N/S 89824 MAGNETIC LATCH 1 N/S 83343 #10 x 1/2 HX HD SCREWS 54 N/S = NOT SHOWN IMPORTANT NOTICE
Summary of the content on the page No. 17
BURNER & LOG ASSEMBLY 17 11 1 13 14 12 20 7 9 8 16 10 4 19 15 18 6 3 D C B 2 A 5 17
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PARTS LIST FOR GAS LOG ASSEMBLY KEY PART # DESCRIPTION QTY. 1 24610 BURNER PLATE 1 2 24611 CONTROL BRACKET 1 3 81193 CONTROL VALVE (NATURAL) 1 81194 CONTROL VALVE (L.P.) 1 4 83251 10-24 x 1 SL ROD 2 5 83244 10-24 KEP NUT 2 N/S 83343 #10 X 1/2 HX HD SCREW 10 6 89831 BURNER/CONTROL FITTING 1 7 89834 1/4" TUBE, BURNER/REGULATOR 1 8 89838 1/4 CC X 3/8-27 FITTING 1 9 89839 1/4 COMPRESSION NUT 1 10 89840 1/4 COMPRESSION SLEEVE 1 11 24612 PILOT BRACKET 1 12 89872 "O.P. AMERICA" NAT. PILOT 1 89873 "O.P.
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TROUBLESHOOTING Turn 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. POSSIBLE CAUSE REMEDY OBSERVED PROBLEM • Ignitor electrode positioned wrong • Replace ignitor. • Ignitor electrode is broken • Replace ignitor. • Ignitor electrode not connected to ignitor • Reconnect ignitor cable. cable. When ignitor button is pressed, there is no • Ignitor cable pinched or wet keep ignitor
Summary of the content on the page No. 20
TROUBLESHOOTING, CONTINUED... OBSERVED PROBLEM POSSIBLE CAUSE REMEDY • Thermocouple connection loose at ODS/Pilot lights, but flame goes out • Hand tighten until snug, then control valve. tighten 1/4 turn more. When control knob is released. • Pilot flame not touching thermocouple, • Contact local gas company. (continued from page 17) which allows thermocouple to cool, causing pilot flame to go out. This problem could be caused by either low gas pressure, or a dirty or partially clogged ODS/pil
Summary of the content on the page No. 1
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UNITED STATES STOVE COMPANY
227 Industrial Park Road • P.O. Box 151 • South Pittsburg, TN 37380 • (423) 837-2100
Natural Gas Model Propane (LPG) Model
A9843N A9843L
C9843N C9843L
G9843N G9843L
VENT-FREE PEDESTAL GAS HEATER
INSTALLATION AND OPERATION INSTRUCTIONS
This is an unvented gas-fired heater. It uses air
(oxygen) from the room in which it is installed.
WARNINGS
Provisions for adequate combustion and ventilation
air must be provided. Refer to "Adequate
WARNIN
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TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION ..........................................................3-4 PRODUCT FEATURES..........................................................................................4 SPECIFICATIONS ............................................................................................... ....5 CONTENTS ............................................................................................................. 5 ITEMS REQUIRED FOR INSTALLATION ......
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IMPORTANT SAFETY INFORMATION INSTALLER: Please leave these instructions with the owner. OWNER: Please retain these instructions for future reference. IMPORTANT: Read these instructions carefully before installing or trying to operate this heater. WARNING: Any change to this heater or its controls can be dangerous. Improper installation or use of the heater can cause serious injury or death from fire, burns, explosion or carbon monoxide poisoning. 1. CARBON MONOXIDE POISONING: Early signs of car
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IMPORTANT SAFETY INFORMATION 12. Do not place clothing or other flammable material near the appliance. 13. Keep appliance area clear and free from combustible materials, gasoline and other flammable vapors and liquids. 14. Any safety screen or guard removed for servicing, must be replaced prior to operating the heater. 15. This vent-free gas heater is intended to be smokeless. If logs appear to smoke, turn off the heater and call a qualified service person. Initial burn off may cause slight smok
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SPECIFICATIONS 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 of Burners 9843N Manual 39,900 10,000 2 Propane / LPG Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c. Manifold Pressure Setting 10" w.c. Gas Inlet Pressure Maximum 13" w.c. Minimum 11" w.c. Number Gas Rate Model Number Type Max BTU/Hr Min BTU/Hr of Burners 9843L Manual 39,900 10,00
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ITEMS REQUIRED FOR INSTALLATION ITEMS REQUIRED FOR INSTALLATION Ensure that the following items are available before proceeding with installation: • External regulator (for propane/LPG only) • Manual shutoff valve • Piping which complies with local codes • Sediment trap • Pipe sealant approved for use with • Pipe wrench propane/LPG (resistant to sulfur compounds) CODES Adhere to all local codes or in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which c
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INSTALLATION 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 H (8') 50 L2 (12') =52800 BTU/HR W (12') L1 (15-1/2') If there were a door between the two rooms the calculation would be based only on the room with the heater. BTU/HR=(15-1/
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GAS CONNECTION A qualified gas appliance installer must connect the fireplace 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 hea
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GAS CONNECTION The gas inlet connection is 3/8" NPT, made at the rear 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 OPEN FLAME. Gas Inlet Connection (3/8" NPT) FIGURE 5. Rear View of 9843 Vent-Free Gas Heater GAS PRESSURE CHECK The heater regulator controls the burner pressure which should be checked at the pressure test point located on the
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REMOVING FRONT SCREEN 1) Lift the front screen slightly up (Fig. 7A) and 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. FIG 7A FIG 7B FIG 7C LOG ASSEMBLY LOG POSITIONING This unit is supplied with a set of four ceramic fiber logs. Do not handle these logs with your bare hands! Always we
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OPERATING INSTRUCTIONS 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 logs appear to smoke, turn off the heater and call a qualified service person. Initial burn off may cause slight smoke and odor during the first four hours
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OPERATING INSTRUCTIONS LIGHTING INSTRUCTIONS PILOT LOCATION 1. STOP! Read the safety information on the previous page. 2. Turn off all electrical power and open the access door. 3. Turn off the rear burner and set the front burner to low. 4. Push in gas control (knob 1) slightly and turn clockwise to "OFF". TOP VIEW OF BURNER ASSEMBLY KNOB 3 3. REAR BURNER 6. Push in the control (knob 1) all the way and rotate counter-clockwise to "PILOT". The piezo ignitor will
Summary of the content on the page No. 13
OPERATING INSTRUCTIONS Wait 30 seconds before readjusting the heater when the control has been turned down to a lower setting. MATCH LIGHTING INSTRUCTIONS If the pilot will not light using the piezo ignitor, you can light the pilot with a match. First, locate the pilot. The pilot is located between the two burner tubes on the right end (facing the unit), inside the firebox. To light pilot with a match, move the gas control (knob 1, pg. 12) to the pilot position and hold down. Light match and
