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UNITED STATES STOVE COMPANY

227 Industrial Park Road • P.O. Box 151 • South Pittsburg, TN 37380 • (423) 837-2100

Propane (LPG) Model

A9843L

C9843L

G9843L

Natural Gas Model

A9843N
C9843N

G9843N

VENT-FREE PEDESTAL GAS HEATER

 INSTALLATION AND OPERATION INSTRUCTIONS

851287    2/98

WARNINGS

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.

THIS APPLIANCE MAY BE INSTALLED IN
AN AFTERMARKET* MANUFACTURED
(MOBILE) HOME, WHERE NOT
PROHIBITED BY STATE OR LOCAL
CODES.

*Aftermarket:  Completion of sale, not

for purpose of resale, from the
manufacturer.

THIS APPLIANCE IS ONLY FOR USE WITH
THE TYPE OF GAS INDICATED ON THE
RATING PLATE.  THIS APPLIANCE IS NOT
CONVERTIBLE FOR USE WITH OTHER
GASES.

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.  Refer to "Adequate
Combustion And Ventilation Air" on page 6 of this
manual.

WARNING: Do not use a blower insert, heat exchanger
insert or other accessory not approved for use with this
heater.

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Summary of Contents for Cavalier A9843L

Page 1: ... 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 THIS APPLIANCE MAY BE INSTALLED IN AN AFTERMARKET MANUFACTURED MOBILE HOME WHERE NOT PROHIBITED BY STATE OR LOCAL CODES Aftermarket Completion of sale not for purpose of resale from the ma...

Page 2: ...SEMBLY 15 16 PARTS LIST FOR BURNER LOG ASSEMBLY 17 18 TROUBLE SHOOTING 19 20 OPTIONAL EQUIPMENT 21 NOTE 22 LIMITED WARRANTY POLICY 23 NOTICE Installationandrepairmustbedonebyaqualifiedserviceperson Theapplianceshouldbeinspected 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 imp...

Page 3: ... by a qualified installer service agency or the gas supplier To prevent malfunction and or sooting an unvented gas heater should be cleaned at least annually by a professional service person More frequent cleaning may be required due to excessive lint from carpeting etc It is imperative that control compartments burners and circulating air passageways be kept clean Correct placement of the ceramic...

Page 4: ... heater and its individual shut off 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 Theheatermustbeisolatedfromthegassupplypipingsystembyclosingitsindividualmanualshutoffvalve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa Do ...

Page 5: ... position to light maintain a standing pilot 4 ON Gas flow to complete system front burner ignition Front Burner Control Knob Infinite control rotate clockwise to minimum rate and counter clockwise for maximum rate Rear Burner Control Knob Has 3 positions 1 OFF Gas to rear burner is shutoff at control 2 ON MAX Maximum gas flow to rear burner 3 MIN Minimum gas flow rate to rear burner GLOVESARERECO...

Page 6: ...U per hour 4 8m per kw of the aggregate input rating of all appliances installed in that space Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space 3 ADEQUATE COMBUSTION AND VENTILATION AIR ITEMS REQUIRED FOR INSTALLATION ITEMS REQUIRED FOR INSTALLATION Ensure that the following ite...

Page 7: ...ending the full width and depth of the appliance WARNING If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 Section 5 3 or applicable local codes L2 12 L1 15 1 2 W 12 H 8 Mini...

Page 8: ...HEATER CONTROL VALVE STAINLESS FLEXIBLE TUBE PIPE COUPLING PIPE MANUAL SHUTOFF VALVE TEE JOINT PIPE NIPPLE CAP SEDIMENT TRAP Usenewblackironorsteelpipeonly Internallytinnedcoppertubingcanbeusedinsomeareas 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 ...

Page 9: ...ring If the pressure is not as specified in Product Specifications Page 5 contact your dealer and replace the regulator FIGURE 6 Pressure Test Point Location Control Valve Control Bracket Rightside view facing heater Test Pressure Input Test Pressure Output Gas Inlet Connection 3 8 NPT FIGURE 5 Rear View of 9843 Vent Free Gas Heater The gas inlet connection is 3 8 NPT made at the rear of the main ...

Page 10: ...t handle these logs with your bare hands Always wearglovestopreventskinirritationfromceramicfibers Afterhandlinglogs washyourhandsgentlywithsoapand water to remove any traces of fibers PROPER INSTALLATION SEQUENCE 1 Installtherearlog 2 ontherearsetoflocators Visuallychecktoverifythelogissecurelyplacedonthelocators 2 Install the front log 1 on the front locators Visually check to verify the log is ...

Page 11: ... BEFORE LIGHTING 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 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 ...

Page 12: ...orandturnonelectricalpower OPERATING INSTRUCTIONS LIGHTING INSTRUCTIONS 1 Open access door 2 Set front burner to Min and turn off the rear burner by depressing knob and rotating clockwise until stop 3 Unplug all electric power optional blower if service is to be performed 4 Push in gas control knob slightly and turn clockwise to OFF Do not force 5 Close access door TURN OFF GAS TO APPLIANCE 1 STOP...

Page 13: ...r you can light the pilot with a match First locate the pilot The pilot islocatedbetweenthetwoburnertubesontherightend facingtheunit insidethefirebox Tolightpilotwithamatch move the gas control knob 1 pg 12 to the pilot position and hold down Light match and place near pilot Once pilot is lit continue to hold the knob for about ten seconds Then follow steps 7 thru 10 on page 12 PILOT FLAME The pil...

Page 14: ... Inspection Inspect and clean burner air intake holes Inspect and clean all burner ports Inspect ODS pilot for operation and accumulation of lint at air intake holes Verify flame pattern and log placement for proper operation FLAME APPEARANCE Verify smooth and responsive ignition of main burner and rear burner In normal operation at full rate after 15 minutes the following flame appearance should ...

Page 15: ...15 HEATER ASSEMBLY REPLACEMENT PARTS 1 2 3 4 5 6 7 8 11 10 9 12 13 ...

Page 16: ...EDESTAL 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 IMPORTANT NOTICE WHEN ORDERING CABINET PARTS PLACE THE APPROPRIATE CODE AFTER THE PART NUMBER THAT CORRESPONDS TO THE COLOR OF YOUR UNIT ALMOND A CHARCOAL GRAY...

Page 17: ...17 BURNER LOG ASSEMBLY 5 16 15 6 8 9 2 3 7 4 10 11 17 1 19 18 A B C D 20 13 14 12 ...

Page 18: ...ON SLEEVE 1 11 24612 PILOT BRACKET 1 12 89872 O P AMERICA NAT PILOT 1 89873 O P AMERICA L P PILOT 1 N S 83437 10 3 4 HX HD SCREW TO MOUNT PILOT 2 13 89841 3 16 COMPRESSION NUT 1 14 89842 3 16 COMPRESSION SLEEVE 1 15 89829 47 NATURAL BURNER ORIFICE FRONT 1 89836 55 L P BURNER ORIFICE FRONT 1 16 89830 48 NATURAL BURNER ORIFICE REAR 1 89836 55 L P BURNER ORIFICE REAR 1 17 24613 BURNER PAINTED 2 18 89...

Page 19: ...lly clogged Open window and or door ventilation Contact local gas company Clean ODS Pilot Appliance shuts off in use Gas leak Control valve defective Locate and correct all leaks Replace control valve Gas odor even when control knob is in OFF position Gas supply turned off or manual shutoff valve closed Control knob not in PILOT position ControlknobnotpressedinwhileinPilot position Air in gas line...

Page 20: ...ty or partially clogged burner orifice LP regulator shut down due to inlet pressure too high Hand tighten until snug then tighten 1 4 turn more Contact local gas company Replacethermocouple Replacecontrolvalve Clean burner or replace burner orifice Replace burner orifice Contact qualified service person Contact local gas company Clean burner or replace burner orifice Clean burner or replace burner...

Page 21: ...T 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 9843 ...

Page 22: ...22 NOTES ...

Page 23: ...r MUST BE INSTALLED BY A QUALIFIED INSTALLER in accor dance with the instructions furnished with the unit The defective heater should be returned at your expense to the dealer from whom the product was purchased or an authorized service agent Any products presented for warranty repair must be accompanied by a dated proof of purchase Since some states do not allow the exclusion on limitation of inc...

Page 24: ...UR RECORDS 1 The PART NUMBER 2 The PART DESCRIPTION 3 The MODEL NUMBER 9843N 9843L 4 The SERIAL NUMBER THIS MANUAL WILL HELP YOU TO OBTAIN EFFICIENT DEPENDABLE SERVICE FROM THE FURNACE AND ENABLE YOU TO ORDER REPAIR PARTS CORRECTLY KEEP IN A SAFE PLACE FOR FUTURE REFERENCE WHEN WRITING ALWAYS GIVE THE FULL MODEL NUMBER WHICH IS ON THE NAMEPLATE ATTACHED INSIDE THE FRONT OF THE HEATER WHEN ORDERING...

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