United States Stove 9947 Quick start guide

UNITED STATES

STOVE COMPANY

227 INDUSTRIAL PARK ROAD • P.O.BOX 151 • SOUTH PITTSBURG, TN.37380 • (423)-837-2100

This is an unvented gas-fired

heater. It uses air (oxygen) from

the room in which it is installed.

Provisionsforadequatecombus-

tion and ventilation air must be

provided. Refer to "Adequate

Combustion And Ventilation Air"

on page(s) 6 of this manual.

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING:

Do not use a blower insert,Do not use a blower insert,

Do not use a blower insert,

heat exchanger insert or otherheat exchanger insert or other

heat exchanger insert or other

accessories not approvedaccessories not approved

accessories not approved

ff

for use with this heateror use with this heater

or use with this heateror use with this heater

or use with this heater..

..

.

Save this manual for

future reference.

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING: If the infIf the inf

If the infIf the inf

If the information in this manormation in this man

ormation in this manormation in this man

ormation in this manual is notual is not

ual is notual is not

ual is not

ff

folloollo

olloollo

ollowed ewed e

wed ewed e

wed exactlxactl

xactlxactl

xactlyy

yy

y,,

,,

,a fire or ea fire or e

a fire or ea fire or e

a fire or explosion maxplosion ma

xplosion maxplosion ma

xplosion may resulty result

y resulty result

y result

causing prcausing pr

causing properoper

operoper

operty damaty dama

ty damaty dama

ty damagg

gg

gee

ee

e,,

,,

,perper

perper

personal injursonal injur

sonal injursonal injur

sonal injuryy

yy

y,,

,,

,or loss ofor loss of

or loss ofor loss of

or loss of

life.life.

life.

~Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or any other

appliance.

~WHA~WHA

~WHATT

TT

TTT

TT

TO DO IFO DO IF

O DO IFO DO IF

O DO IFYY

YY

YOU SMELL GASOU SMELL GAS

OU SMELL GASOU SMELL GAS

OU SMELL GAS

• Do not try to light any appliance.• Do not try to light any appliance.

• Do not try to light any appliance.

• Do not touch any electrical switch; do not• Do not touch any electrical switch; do not

• Do not touch any electrical switch; do not

use any phone in your building.use any phone in your building.

use any phone in your building.

• Immediately call your gas supplier from a• Immediately call your gas supplier from a

• Immediately call your gas supplier from a

neighbor's phone. Follow the gas supplier'sneighbor's phone. Follow the gas supplier's

neighbor's phone. Follow the gas supplier's

instructions.instructions.

instructions.

• If y• If y

• If you cannot reacou cannot reac

ou cannot reacou cannot reac

ou cannot reach yh y

h yh y

h your gas supplierour gas supplier

our gas supplierour gas supplier

our gas supplier,,

,,

,callcall

callcall

call

the fire department.the fire department.

the fire department.

~Installation and service must be performed by a~Installation and service must be performed by a

~Installation and service must be performed by a

qualified installerqualified installer

qualified installer,,

,,

,serser

serser

service avice a

vice avice a

vice agg

gg

gencenc

encenc

encyy

yy

y,,

,,

,or the gas supplieror the gas supplier

or the gas supplieror the gas supplier

or the gas supplier..

..

.

851371-C

This appliance may be installed in an aftermarket* manufactured (mobile) home,This appliance may be installed in an aftermarket* manufactured (mobile) home,

This appliance may be installed in an aftermarket* manufactured (mobile) home,

where not prohibited by state or local codes.where not prohibited by state or local codes.

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 gas indicated on the rating plate. This appli-This appliance is only for use with the type gas indicated on the rating plate. This appli-

This appliance is only for use with the type gas indicated on the rating plate. This appli-

ance is not convertible for use with other gases.ance is not convertible for use with other gases.

ance is not convertible for use with other gases.

Owner's Operation and Installation ManualOwner's Operation and Installation Manual

Owner's Operation and Installation Manual

Natural Gas Model

C9947N

Supplemental Heater

Propane (LPG) Gas Model

C9947L

Supplemental Heater

®

Fiero

SECTION PSECTION P

SECTION PAA

AA

AGEGE

GEGE

GE

IMPORTANTSAFETY INFORMATION.......................................................3-4

PRODUCT FEATURES..................................................................................4

9947SPECIFICATIONS.................................................................................5

CONTENTS....................................................................................................5

ITEMSREQUIREDFOR INSTALLATION......................................................6

INSTALLATION...............................................................................................7

MANTELCLEARANCES................................................................................8

GASCONNECTION..................................................................................9-10

GASPRESSURECHECK.............................................................................10

FRONT SCREEN REMOVAL.......................................................................11

LOGASSEMBLY...........................................................................................11

OPERATINGINSTRUCTIONS................................................................12-14

CLEANING/SERVICING.......................................................................14-15

FLAMEAPPEARANCE................................................................................15

PARTS LIST FOR HEATER ASSEMBLY.................................................16-17

PARTS LIST FOR BURNER AND LOG ASSEMBLY...............................18-19

TROUBLESHOOTING...........................................................................20-21

OPTIONALEQUIPMENT..............................................................................22

WIRINGDIAGRAMS...............................................................................23-25

NOTES..........................................................................................................26

LIMITEDWARRANTY POLICY....................................................................27

TABLE OF CONTENTS

2

Installation and repair must be done by a qualified service person. The appliance should be in-

spected 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 and circulating air passageways of the appliance be kept clean.

NOTICE

IMPORTANT SAFETY INFORMATION

3

INSTINST

INSTALLER:ALLER:

ALLER:ALLER:

ALLER:

Please leave these instructions with the owner.

OWNER:OWNER:

OWNER: Please retain these instructions for future reference.

IMPORIMPOR

IMPORTT

TT

TANTANT

ANTANT

ANT::

::

:

Read these instructions carefully before installing or trying to operate this heater.

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING:

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:CARBON MONOXIDE POISONING:

CARBON MONOXIDE POISONING:CARBON MONOXIDE POISONING:

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.

2. The installation must conform with local codes or, in the absence of local codes, with the National

Fuel Gas Code, ANSI Z223.1.

2. This heater shall not be installed in a bedroom or bathroom.

4. WW

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING: Improper installation, adjustment, alteration, service or maintenance can cause

injury or property damage. Refer to this owner's manual. Installation and service must be

performed by a qualified installer, service agency or the gas supplier.

5. To prevent malfunction and/or sooting, a vent-free 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.

6.

Correct placement of the ceramic fiber logs is necessary to avoid problems with sooting. Sooting

can settle on surfaces outside the heater and cause discoloration. See the appropriate sections

of this manual for instructions.

7.

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING:

Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner

flame patterns. 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.

8. This is a vent-free 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 installation

guidelines.

9.

Children and adults should be alerted to the hazard of high surface temperature and should stay

away to avoid burns or clothing ignition.

10.

Young children should be carefully supervised when they are in the same room with the

appliance.

11. Do not place clothing or other flammable material near the appliance.

IMPORTANT SAFETY INFORMATION

CONTINUED

13. Keep appliance area clear and free from combustible materials, gasoline and other flammable

vapors and liquids.

15. Any safety screen or guard removed for servicing, must be replaced prior to heater operation.

16.

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 of operation.

17. 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 s

hould be reduced 4 percent per 1,000 feet above sea level.

Refer to the National Fuel Gas Code.

18. The appliance and its appliance main gas 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).

19.

The appliance must be isolated from the gas supply piping system by closing its equipment

shut off 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).

20. Do not use this 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 that has been under water.

4

Features:Features:

Features:

• Heating Efficiency - 99.9%

• Wide BTU Range: 27,000-39,900.

• Safe Operation -

Oxygen Depletion Sensor (ODS).

• Fibre Ceramic Logs.

• 120 CFM Blower

• Push-Button Piezo Ignitor.

• Clean Operation.

• Easy Operation.

• Heats up to 1,200 square feet.

• Optional Remote Control, Wall Switch

and Wall Thermostat Kits

PRODUCT FEATURES

9947 Vent-free Gas Pedestal Heater9947 Vent-free Gas Pedestal Heater

9947 Vent-free Gas Pedestal Heater

Figure 1.Figure 1.

Figure 1.

9947 SPECIFICATIONS

Natural GasNatural Gas

Natural Gas

Manifold Pressure Setting: 4" w.c.

Gas Inlet Pressure: Maximum 10-1/2" w.c.

Minimum 5" w.c.

Propane/LPGPropane/LPG

Propane/LPG

Manifold Pressure Setting: 10" w.c.

Gas Inlet Pressure: Maximum 13" w.c.

Minimum 11" w.c.

5

CAUTIONCAUTION

CAUTION

GLOGLO

GLOVES ARE RECOMMENDEDVES ARE RECOMMENDED

VES ARE RECOMMENDEDVES ARE RECOMMENDED

VES ARE RECOMMENDED WHEN HANDLING CERAMIC FIBERWHEN HANDLING CERAMIC FIBER

WHEN HANDLING CERAMIC FIBERWHEN HANDLING CERAMIC FIBER

WHEN HANDLING CERAMIC FIBER

LOGSLOGS

LOGS TT

TT

TO PREVENT SKIN IRRITO PREVENT SKIN IRRIT

O PREVENT SKIN IRRITO PREVENT SKIN IRRIT

O PREVENT SKIN IRRITAA

AA

ATION FRTION FR

TION FRTION FR

TION FROM LOOSE FIBERS.OM LOOSE FIBERS.

OM LOOSE FIBERS.OM LOOSE FIBERS.

OM LOOSE FIBERS. LOGSLOGS

LOGSLOGS

LOGS

ARE FRAARE FRA

ARE FRAGILE,GILE,

GILE,GILE,

GILE, HANDLEHANDLE

HANDLEHANDLE

HANDLE WITH CARE.WITH CARE.

WITH CARE.WITH CARE.

WITH CARE.

Carefully inspect the contents for shipping damage and immediately inform

your dealer if any damage is found.

9947L and 9947N Un9947L and 9947N Un

9947L and 9947N Unvented Gas Heatervented Gas Heater

vented Gas Heatervented Gas Heater

vented Gas Heaterss

ss

s

1. Packet containing Homeowner's/Installation instructions.

2. Three(3)individuallywrappedfiber ceramiclogs,refertoinstallationinstructions.

3. Unvented gas heater.

CHECKCHECK

CHECK THATHA

THATHA

THAT ALL LISTED PT ALL LISTED P

T ALL LISTED PT ALL LISTED P

T ALL LISTED PARAR

ARAR

ARTS HATS HA

TS HATS HA

TS HAVE BEEN RECEIVEDVE BEEN RECEIVED

VE BEEN RECEIVEDVE BEEN RECEIVED

VE BEEN RECEIVED

CONTENTS

Gas RateGas Rate

Gas Rate NumberNumber

NumberNumber

Number

Model NumberModel Number

Model Number TT

TT

Typeype

ypeype

ype Max BTU/HrMax BTU/Hr

Max BTU/HrMax BTU/Hr

Max BTU/Hr Min BTU/HrMin BTU/Hr

Min BTU/HrMin BTU/Hr

Min BTU/Hr of Burnersof Burners

of Burnersof Burners

of Burners

9947N Manual 39,900 27,000 1

9947L Manual 39,900 27,000 1

ControlsControls

Controls - Main control has 4 positions:

1. OFF - All gas to the gas logs is shut off at the control

2. IGN - Piezo ignitor allows ignition of the pilot without the use of matches or batteries

3. PILOT - Valve position to light/maintain a standing pilot

4. ON - Gas flow to complete system.

HIGH / LOW ControlHIGH / LOW Control

HIGH / LOW Control - Infinite control :

Rotate knob clockwise to LOLO

LOLO

LOWW

WW

W,,

,,

,

counter clockwise to HIGHHIGH

HIGHHIGH

HIGH.

6

ITEMS REQITEMS REQ

ITEMS REQUIRED FOR INSTUIRED FOR INST

UIRED FOR INSTUIRED FOR INST

UIRED FOR INSTALLAALLA

ALLAALLA

ALLATIONTION

TIONTION

TION

Ensure that the following items are available before proceeding with installation:

• External regulator (for propane/LPG only) • Manual cutoff valve

• Piping which complies with local codes • Sediment trap

• Pipe sealant approved for use with • Pipe wrench

propane / LPG (resistant to sulfur compounds)

ITEMS REQUIRED FOR INSTALLATION

CODESCODES

CODES

Adhere to all local codes or in their absence, the latest edition ofTHE NATIONAL FUEL GAS CODE

ANSIZ223.1 or NFPA54 which can be obtained from:

American National Standards Institute, Inc.American National Standards Institute, Inc.

American National Standards Institute, Inc. National Fire Protection Association, Inc.National Fire Protection Association, Inc.

National Fire Protection Association, Inc.National Fire Protection Association, Inc.

National Fire Protection Association, Inc.

1430 Broadway oror

oror

or Batterymarch Park

NewYork, NY 10018 Quincy, MA 02269

WW

WARNINGARNING

ARNINGARNING

ARNING

Due to high temperatures, do not install the heater:Due to high temperatures, do not install the heater:

Due to high temperatures, do not install the heater:

• Where curtains, furniture, clothing or other flammable objects are less than• Where curtains, furniture, clothing or other flammable objects are less than

• Where curtains, furniture, clothing or other flammable objects are less than

42" fr42" fr

42" from the from the fr

om the from the fr

om the front of the heateront of the heater

ont of the heateront of the heater

ont of the heater..

..

.

• In high traffic areas.• In high traffic areas.

• In high traffic areas.

• In windy or drafty areas.• In windy or drafty areas.

• In windy or drafty areas.

DO NODO NO

DO NOT PLAT PLA

T PLAT PLA

T PLACE CLOCE CLO

CE CLOCE CLO

CE CLOTHING OF OTHING OF O

THING OF OTHING OF O

THING OF OTHER FLAMMABLE MATHER FLAMMABLE MA

THER FLAMMABLE MATHER FLAMMABLE MA

THER FLAMMABLE MATERIAL ON OR NEARTERIAL ON OR NEAR

TERIAL ON OR NEARTERIAL ON OR NEAR

TERIAL ON OR NEAR

THE APPLIANCE.THE APPLIANCE.

THE APPLIANCE.

ADEQADEQ

ADEQUU

UU

UAA

AA

ATE COMBTE COMB

TE COMBTE COMB

TE COMBUSTION ANDUSTION AND

USTION ANDUSTION AND

USTION AND VENTILAVENTILA

VENTILAVENTILA

VENTILATION AIRTION AIR

TION AIRTION AIR

TION AIR

This heater shall not be installed in a confined space unless provisions are provided for adequate combus-

tion and ventilation air.

(a) Walls and ceiling exposed to the outside atmosphere have a continuous water vapor retarded

with a rating of 1 perm (6 x 10 kg per pa-sec-m²) or less with openings gasketed or sealed , and

(b) Weather stripping has been added on openable windows and doors, and

(c) Caulking or sealants are applied to areas such as joints around window and door frames,

between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations

for plumbing, electrical, gas lines, and at other openings.

The National Fuel Gas Code defines a confined space as a space whose volume is less than 50 cubic feet

per 1,000 BTU per hour (4.8m³ per kw) of the aggregate input rating of all appliances installed in that space

and an unconfined space is defined as a space whose volume is not less than 50 cubic feet per 1,000 BTU

per hour (4.8m³ 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 fur-

nished with doors, are considered a part of that unconfined space.

11

The following formula can be used to determine the maximum

heaterrating per thedefinition ofunconfinedspace:

BTU/HR = (L1+L2) Ft x (W) Ft x (H) Ft x 1000

50

Considertwoconnectingroomswithanopenareabetween,

with the following dimensions:( See Fig. 2, Example)

L1=15-1/2 Ft., L2=12 Ft., W=12 ft., H=8Ft

50

=52800BTU/HR

Iftherewereadoorbetweenthetworoomsthecalculationwould

be based only on the room with the heater.

BTU/HR=(15-1/2)x (12)x (8)x1000

50

=29760BTU/HR

7

FIGURE 2.FIGURE 2.

FIGURE 2.

Wheninstallingtheappliancedirectlyoncarpeting,tileorothercombustibleWheninstallingtheappliancedirectlyoncarpeting,tileorothercombustible

Wheninstallingtheappliancedirectlyoncarpeting,tileorothercombustible

material, other than wood flooring, the appliance must be installed on amaterial, other than wood flooring, the appliance must be installed on a

material, other than wood flooring, the appliance must be installed on a

metal or wood panel extending the full width and depth of the appliance.metal or wood panel extending the full width and depth of the appliance.

metal or wood panel extending the full width and depth of the appliance.

FIGURE 3. Minimum ClearancesFIGURE 3. Minimum Clearances

FIGURE 3. Minimum Clearances

Ensure the minimum clearances shown in FIGURE 3 are maintained forEnsure the minimum clearances shown in FIGURE 3 are maintained for

Ensure the minimum clearances shown in FIGURE 3 are maintained for

accessibility for purposes of servicing and proper operation. Left andaccessibility for purposes of servicing and proper operation. Left and

accessibility for purposes of servicing and proper operation. Left and

right cright c

right clearances are determined when facing the frlearances are determined when facing the fr

learances are determined when facing the frlearances are determined when facing the fr

learances are determined when facing the front of the heateront of the heater

ont of the heateront of the heater

ont of the heater..

..

.

WARNINGWARNING

WARNING

WARNINGWARNING

WARNING WARNINGWARNING

WARNINGWARNING

WARNING

Minimum clearances to

combustibles:

Top of heater...............................36"

RightSideof heater.....................15"

Left Side of heater.........................8"

Frontofheater.............................42"

Rear of heater...............................4"

MaintaintheseclearancesMaintaintheseclearances

Maintaintheseclearances

toensure adequate spacetoensureadequate space

toensure adequate space

around air opening foraround air opening for

around air opening for

properoperation.properoperation.

properoperation.

Iftheareainwhichtheheater maybeoperatedis smallerthanthatdefinedasanIftheareainwhichtheheater maybeoperatedis smallerthanthatdefinedasan

Iftheareainwhichtheheater maybeoperatedis smallerthanthatdefinedasan

unconfined space or if the building is of unusually tight construction, provideunconfined space or if the building is of unusually tight construction, provide

unconfined space or if the building is of unusually tight construction, provide

adequatecombustionandventilationairbyoneofthemethodsdescribedintheadequatecombustionandventilationairbyoneofthemethodsdescribedinthe

adequatecombustionandventilationairbyoneofthemethodsdescribedinthe

National Fuel Gas CodeNational Fuel Gas Code

National Fuel Gas Code,,

,,

,ANSI Z223.1,ANSI Z223.1,

ANSI Z223.1,ANSI Z223.1,

ANSI Z223.1,Section 5.3,Section 5.3,

Section 5.3,Section 5.3,

Section 5.3,or applicabor applicab

or applicabor applicab

or applicable local codes.le local codes.

le local codes.le local codes.

le local codes.

INSTALLATION

8

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.

MANTEL CLEARANCES

BACK WALL

MANTEL SHELF

DISTANCE TO

UNDERSIDE OF

MANTEL

UNDERSIDE OF

MANTEL SHELF

TOP OF HEATER

MINIMUM CLEARANCE

TO BACK WALL

FLOOR

ALL MINIMUM

DISTANCES ARE

IN INCHES

MINIMUM MANTEL CLEARANCESMINIMUM MANTEL CLEARANCES

MINIMUM MANTEL CLEARANCES

Figure 4.Figure 4.

Figure 4.

9

Connecting directly to an unregulated propane/LPG tank can cause an explosion.Connecting directly to an unregulated propane/LPG tank can cause an explosion.

Connecting directly to an unregulated propane/LPG tank can cause an explosion.

CHECK GAS TYPE:CHECK GAS TYPE:

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.

IMPORTANT:IMPORTANT:

IMPORTANT:Loosenthepipeadapter

on the flex tube before installing to the

system piping.

FIGURE 5. Gas ConnectionFIGURE 5. Gas Connection

FIGURE 5. Gas Connection

A qualified gas appliance installer must connect the fireplace to the gas supply.A qualified gas appliance installer must connect the fireplace to the gas supply.

A qualified gas appliance installer must connect the fireplace to the gas supply.

Consult all local codes.Consult all local codes.

Consult all local codes.

Use new black iron or steel pipe only. Internally tinned copper tubing can be usedUse new black iron or steel pipe only. Internally tinned copper tubing can be used

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 greaterin some areas when permitted by local codes. Only use pipe of 1/2" or greater

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 thediameter to allow full gas volume to heater. Excessive pressure loss will occur if the

diameter to allow full gas volume to heater. Excessive pressure loss will occur if the

pipe is too small.pipe is too small.

pipe is too small.

Amanual shutoff valve, union and plugged 1/8" NPT pressure tapping pointmust beAmanual shutoffvalve, unionand plugged1/8" NPT pressure tapping point must be

Amanual shutoff valve, union and plugged 1/8" NPT pressure tapping pointmust be

installed upstream of the heater (FIGURE 5).installed upstream of the heater (FIGURE 5).

installed upstream of the heater (FIGURE 5).

A sediment trap must be installed upstream of the heater to prevent moisture andA sediment trap must be installed upstream of the heater to prevent moisture and

A sediment trap must be installed upstream of the heater to prevent moisture and

contaminants from passing through the pipe to the heater controls and burners.contaminants from passing through the pipe to the heater controls and burners.

contaminants from passing through the pipe to the heater controls and burners.

Failure to do so could prevent the heater from operating reliably (FIGURE 5).Failure to do so could prevent the heater from operating reliably (FIGURE 5).

Failure to do so could prevent the heater from operating reliably (FIGURE 5).

CAUTIONCAUTION

CAUTION NOTICENOTICE

NOTICENOTICE

NOTICE

GAS CONNECTION

WW

WARNINGARNING

ARNINGARNING

ARNING

Theheaterregulatorcontrolstheburnerpressurewhichshouldbecheckedatthepressuretestpoint

located on the front of the main control and is accessible by removing the control panel on the right

side of the heater.

The pressure should be checked with the heater burning and the control set to high (HI).

The pressure regulator is preset and locked to avoid tampering. If the pressure is not as specified

in Product Specifications (Page 5), contact your dealer and replace the regulator.

FIGURE 7. Pressure Test Point Location

10

GAS CONNECTION

GAS PRESSURE CHECK

FIGURE 6. Rear View of 9947 Vent-Free Gas HeaterFIGURE 6. Rear View of 9947 Vent-Free Gas Heater

FIGURE 6. Rear View of 9947 Vent-Free Gas Heater

Gas Inlet Connection (3/8" NPT)

The gas inlet connection is 3/8" NPT,

made at the rear of the unit in the bottom

left-hand corner.

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.

United States Stove 9947 Quick start guide

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