Ussc 2020n Operation manual

Vent-Free Gas Fireplace

United States

Stove Company

851466-A

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 isual is

ual isual is

ual is

not fnot f

not 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 mayy

yy

y

result causing prresult causing pr

result 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 of life.or loss of life.

or loss of life.

~Do not store or use gasoline or other flammable~Do not store or use gasoline or other flammable

~Do not store or use gasoline or other flammable

vapors and liquids in the vicinity of this or anyvapors and liquids in the vicinity of this or any

vapors and liquids in the vicinity of this or any

other appliance.other appliance.

other appliance.

~WHA~WHA

~WHATT

TT

T TT

TT

TO DO IFO DO IF

O DO IFO DO IF

O DO IF YY

YY

YOU SMELL GASOU SMELL GAS

OU SMELL GASOU SMELL GAS

OU SMELL GAS

**

*Do not try to light any applianceDo not try to light any appliance

Do not try to light any applianceDo not try to light any appliance

Do not try to light any appliance

**

*Do not touch any electrical switch; do notDo not touch any electrical switch; do not

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

Do not touch any electrical switch; do not

use any phone in your buildinguse any phone in your building

use any phone in your building

**

*Immediately call your gas supplier from aImmediately call your gas supplier from a

Immediately call your gas supplier from aImmediately 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

instructionsinstructions

instructions

**

*If yIf y

If yIf 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 departmentthe fire department

the fire department

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

~Installation and service must be performed by

a qualified installera qualified installer

a qualified installer,,

,,

,serser

serser

service avice a

vice avice a

vice agg

gg

gencenc

encenc

encyy

yy

y,,

,,

,or the gasor the gas

or the gasor the gas

or the gas

suppliersupplier

supplier..

..

.

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 pages 6-10 of

this manual.

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

This firebox 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.

This applaince is only for use with the type of gas indicated on the rating plate. ThisThis applaince is only for use with the type of gas indicated on the rating plate. This

This applaince is only for use with the type of gas indicated on the rating plate. This

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

appliance is not convertible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

(i.e. Installation of this product is permitted after the manufactured (mobile) home is sited).

Save this manual for

future reference.

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..

..

.

OO

OWNER'S OPERAWNER'S OPERA

WNER'S OPERAWNER'S OPERA

WNER'S OPERATION AND INSTTION AND INST

TION AND INSTTION AND INST

TION AND INSTALLAALLA

ALLAALLA

ALLATION MANUTION MANU

TION MANUTION MANU

TION MANUALAL

ALAL

AL

Model: 2020LModel: 2020L

Model: 2020L

Supplemental Heater Model: 2020NModel: 2020N

Model: 2020NModel: 2020N

Model: 2020N

Supplemental Heater

®®

®

TABLE OF CONTENTS

IMPORIMPOR

IMPORTT

TT

TANTANT

ANTANT

ANT::

::

:Read this oRead this o

Read this oRead this o

Read this owner's manwner's man

wner's manwner's man

wner's manual carefullual carefull

ual carefullual carefull

ual carefully and completely and completel

y and completely and completel

y and completely befy bef

y befy bef

y before trore tr

ore trore tr

ore trying toying to

ying toying to

ying to

assemble, operate, or service this fireplace. Improper use of this fireplace can causeassemble, operate, or service this fireplace. Improper use of this fireplace can cause

assemble, operate, or service this fireplace. Improper use of this fireplace can cause

serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-

serious injury or death from burns, fire, explosion, electrical shock, and carbon poi-

soning.soning.

soning.

WARNINGS/SAFETY INFORMATION

Install and use fireplace with care. Follow all local codes. In the absence of local codes, use

the latest edition of The National Fuel Gas Code ANSI Z223.1, also known as NFPA 54*.

Firebox must be electrically grounded in accordance with the National Electric Code, ANSI/

NFPA 70 (latest edition).

*Available from: American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

LOCAL CODES

SECTIONSECTION

SECTION PP

PP

PAA

AA

AGEGE

GEGE

GE

LOCALCODES.......................................................................................................2

WARNINGS/SAFETYINFORMATION.................................................................2-4

2020 SPECIFICATIONS.....................................................................................4-5

PRODUCT FEATURES...........................................................................................6

LOCATINGTHEFIREPLACE.....................................................................................6

AIR FOR COMBUSTION ANDVENTILATION..................................................6-10

INSTALLATION................................................................................................10-11

SCREENREMOVAL.............................................................................................11

GASCONNECTION........................................................................................12-13

GASPRESSURECHECK.....................................................................................13

LOGASSEMBLY...................................................................................................14

OPERATING INSTRUCTIONS........................................................................15-17

CLEANING/SERVICING..................................................................................17-18

FLAMEAPPEARANCE.........................................................................................18

PARTS DIAGRAM & LIST.................................................................................19-20

BLOWER KIT WIRING DIAGRAM.......................................................................21

OPTIONALACCESSORIES.................................................................................22

WIRING GUIDE FOR 2020.............................................................................23-24

NOTES............................................................................................................25-27

HOWTO ORDER REPAIRPARTS........................................................................28

2

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING:

Any change to this heater or its controls can be dangerous.

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

2. Never install the fireplace

* in a recreational vehicle

* where curtains, furniture, clothing, or other flammable objects are less than

36 inches from the front, top, or side of the fireplace

* in high traffic areas

* in windy or drafty areas

3. Do not add extra logs or ornaments such as pine cones, vermiculite, or rock wool.

Using these added items can cause sooting.

4. You must operate this fireplace with the fireplace screen in place.

Make sure these parts are in place before running.

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

patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered burner

patterns can cause sooting.

6. 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.

7. 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 section of this manual for instructions.

8. This Vent-free gas log heater requires fresh air ventilation to run properly. See

Air for

Combustion and Ventilation

instructions in this owner's manual.

9. Do not run fireplace

* where flammable liquids or vapors are used or stored

* under dusty conditions

10. Do not use this fireplace to cook food or burn paper or other objects.

11. Never place any objects in the firebox or on logs.

12. Fireplace front and screen becomes very hot when running. Keep children and adults

away from hot surfaces to avoid burns or clothing ignition. Firebox will remain hot for a

time after shutdown. Allow surfaces to cool before touching.

13. Carefully supervise young children when they are in the room with fireplace.

14. Turn fireplace off and let cool before servicing. Only a qualified service person should

service and repair fireplace.

15. Operating vent-free gas log heaters in a fireplace above elevations of 4,500 feet could

cause pilot outage.

16. IMPORTANT: The fireplace hood must not be replaced with a hood/canopy which may

be provided with the decorative type unvented room heater.

WARNINGS/SAFETY INFORMATION

CONTINUED

3

WARNINGS/SAFETY INFORMATION

CONTINUED

17. 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.

18. This vent-free gas fireplace 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.

19. 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.

20. 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 kPa).

21. The appliance must be isolated from the gas supply piping system be closing its equip-

ment 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).

22. Do not use this gas fireplace 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 which has been under water.

2020 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.

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

2020N Manual 20,000 14,000 1

2020L Manual 20,000 14,000 1

ControlsControls

Controls - Main control has 3 positions:

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

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

3. ON - Opens valve for gas flow to complete system.

Piezo Ignitor -Piezo Ignitor -

Piezo Ignitor - allows ignition of the pilot without the use of matches or batteries

ON/OFF Switch -ON/OFF Switch -

ON/OFF Switch - Operates gas flow to the burner

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.

4

2020 SPECIFICATIONS,

CONTINUED...

5

FIREPLACE TOP VIEW

FIREPLACE FRONT VIEW FIREPLACE SIDE VIEW

PRODUCT FEATURES

AIR FOR COMBUSTION AND VENTILATION

This heater shall not be installed in a confined space or unusually tight construc-This heater shall not be installed in a confined space or unusually tight construc-

This heater shall not be installed in a confined space or unusually tight construc-

tion unless prtion unless pr

tion unless proo

oo

ovisions are prvisions are pr

visions are prvisions are pr

visions are proo

oo

ovided fvided f

vided fvided f

vided for adequate combor adequate comb

or adequate combor adequate comb

or adequate combustion and ventilation airustion and ventilation air

ustion and ventilation airustion and ventilation air

ustion and ventilation air..

..

.

Read the following instructions to insure proper fresh air for this and other fuel-Read the following instructions to insure proper fresh air for this and other fuel-

Read the following instructions to insure proper fresh air for this and other fuel-

burning appliances in your home.burning appliances in your home.

burning appliances in your home.

WW

WARNINGARNING

ARNINGARNING

ARNING

Today's homes are built more energy efficient than ever. New materials, increased insula-

tion, and new construction methods help reduce heat loss in homes. Home owners weather

strip and caulk around windows and doors to keep the cold air out and the warm air in. During

heating months, home owners want their homes as airtight as possible.

While it is good to make your home energy efficient, your home needs to breathe. Fresh air

must enter your home. All fuel-burning appliances need fresh air for proper combustion and

ventilation.

Exhaust fans, fireboxes, clothes dryers, and fuel-burning appliances draw air from the house

to operate. You must provide adequate fresh air for these appliances. This will insure proper

venting of vented fuel-burning appliances.

OperationOperation

Operation

ThisVent-free Gas Fireplace requires no outside venting or chimney making installation easy

and inexpensive. When used without the optional blower, the fireplace requires no electricity

making it ideal for emergency backup heat.

BloBlo

Blower Accessorwer Accessor

wer Accessorwer Accessor

wer Accessoryy

yy

y

The 2020 Vent-free Gas Fireplace will accept the Blower Kit accessory. The kit comes with

the variable blower. The variable blower allows you to select the fan speed you desire. The

blower circulates heated air from the fireplace into the room. Use of the blower is optional.

PlanningPlanning

Planning

Plan where you will install the fireplace. This will save time and money later when you install

the fireplace. Before installation, consider the following:

1. Where the fireplace will be located. Allow for wall and ceiling clearances (see

Installation Clearances

, pages 10 & 11).

2. Everything needed to complete installation.

3. This model CANNOT be installed in a bedroom or bathroom.

4. Proper air for combustion and ventilation (see below).

LOCATING FIREPLACE

6

AIR FOR COMBUSTION AND VENTILATION

CONTINUED

Providing adequate ventilationProviding adequate ventilation

Providing adequate ventilation

The following is excerpts from

National Fuel Gas Code.NFPA 54/ANSI Z223.1, Section 5.3,

Air for Combustion and Ventilation.

All spaces in homes fall into one of the three following ventilation classifications:

1. Unusually Tight Construction; 2. Unconfined Space; 3. Confined Space.

The information on pages 6 through 10 will help you classify your space and provide ad-

equate ventilation.

UnUn

Unusuallusuall

usuallusuall

usuallyy

yy

yTight ConstructionTight Construction

Tight ConstructionTight Construction

Tight Construction

The air that leaks around doors and windows may provide enough fresh air for combustion

and ventilation. However, in buildings of unusually tight construction, you must provide

additional fresh air.

Unusually tight construction is defined as construction where:Unusually tight construction is defined as construction where:

Unusually tight construction is defined as construction where:

a.a.

a. WW

WW

Walls and ceilings ealls and ceilings e

alls and ceilings ealls and ceilings e

alls and ceilings exposed to the outside atmosphere haxposed to the outside atmosphere ha

xposed to the outside atmosphere haxposed to the outside atmosphere ha

xposed to the outside atmosphere have a continve a contin

ve a continve a contin

ve a continuousuous

uousuous

uous

water vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or lesswater vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or less

water vapor retarder with a rating of one perm (6x10 kg per pa-sec-m ) or less

with openings gasketed or sealedwith openings gasketed or sealed

with openings gasketed or sealed andand

andand

and

b.b.

b. WW

WW

Weather stripping has been adeather stripping has been ad

eather stripping has been adeather stripping has been ad

eather stripping has been added on openabded on openab

ded on openabded on openab

ded on openable windole windo

le windole windo

le windows and doorws and door

ws and doorws and door

ws and doorss

ss

s andand

andand

and

c.c.

c. Caulking or sealants are applied to areas such as joints around window andCaulking or sealants are applied to areas such as joints around window and

Caulking or sealants are applied to areas such as joints around window andCaulking or sealants are applied to areas such as joints around window and

Caulking or sealants are applied to areas such as joints around window and

door frames, between sole plates and floors, between wall-ceiling joints,door frames, between sole plates and floors, between wall-ceiling joints,

door frames, between sole plates and floors, between wall-ceiling joints,

between wall panels, at penetrations for plumbing, electrical, and gas lines,between wall panels, at penetrations for plumbing, electrical, and gas lines,

between wall panels, at penetrations for plumbing, electrical, and gas lines,

and at other openings.and at other openings.

and at other openings.

If your home meets all of the three criteria above, you must provide additional fresh air. See

Ventilation Air From Outdoors

, page 10.

If your home does not meet all of the three criteria above, proceed to page 8.

Confined Space and Unconfined SpaceConfined Space and Unconfined Space

Confined Space and Unconfined Space

The National Fuel Gas Code (ANSI Z223.1, 1992 Section 5.3) defines a confined space as a

space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8m per kw) of the

aggregate input rating of all appliances installed in that space and an unconfined space as a

space whose volume is not less than 50 cubic feet per 1,000 BTU 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.

* Adjoining rooms are communicating only if there are doorless passageways or ventilation

grills between them.

3

7

-11 2

AIR FOR COMBUSTION AND VENTILATION

CONTINUED

Determining ifDetermining if

Determining ifYY

YY

You Haou Ha

ou Haou Ha

ou Have a Confined or Unconfined Spaceve a Confined or Unconfined Space

ve a Confined or Unconfined Spaceve a Confined or Unconfined Space

ve a Confined or Unconfined Space

Use this worksheet to determine if you have a confined or unconfined space.

Space:Space:

Space: Includes the room in which you will install the firebox plus any adjoining rooms with

doorless passageways or ventilation grills between the rooms.

1. Determine the volume of the space (length x width x height).

Length x Width x Height = _______________ cu. Ft. (volume of space)

Example:

Space size 22 ft. (length) x 18 ft. (width) x 8 ft. (ceiling height) =

3168 cu. Ft. (volume of space)

If additional ventilation to adjoining room is supplied with grills or openings, add the

volume of these rooms to the total volume of the space.

2. Divide the space volume by 50 cubic feet to determine the maximum BTU/Hr the space

can support.

_________ (volume of space) 50 cu. Ft. = (Maximum BTU/Hr the space can support)

Example:

3168 cu. Ft. (volume of space) 50 cu. Ft. = 63.3 or 63,300 (maximum

BTU/Hr the space can support)

3. Add the BTU/Hr of all fuel-burning appliances in the space.

Vent-free Firebox __________________ BTU/Hr

Gas water heater* __________________ BTU/Hr

Gas furnace __________________ BTU/Hr

Vented gas heater __________________ BTU/Hr

Gas firebox logs __________________ BTU/Hr

Other gas appliances* + __________________ BTU/Hr

Total = __________________ BTU/Hr

Example:

Gas water Heater 40,000 BTU/Hr

Vent-free firebox with log heater + 39,000 BTU/Hr

Total = 79,000 BTU/Hr

* Do not include direct-vent gas appliances. Direct-vent draws combustion air from

the outdoors and vents to the outdoors.

4. Compare the maximum BTU/Hr the space can support with the actual amount of

BTU/ Hr used.

______________ BTU/Hr (maximum the space can support)

______________ BTU/Hr (actual amount of BTU/Hr used)

Example: 63,300 BTU/Hr (maximum the space can support)

79,000 BTU/Hr (actual amount of BTU/Hr used)

The space in the above example is a confined space because the actual BTU/Hr used is

more than the maximum BTU/Hr the space can support. You must provide additional fresh

air.

Your options are as follows:

A. Rework worksheet, adding the space of an adjoining room. If the extra space provides

an unconfined space, remove door to adjoining room or add ventilation grills between

rooms. See

Ventilation Air From Inside Building

, page 9.

8

AIR FOR COMBUSTION AND VENTILATION

CONTINUED

B. Vent room directly to the outdoors. See

Ventilation Air from Outdoors

, page 10.

C. Install a lower BTU/Hr firebox, if lower BTU/Hr size makes room unconfined.

If the actual BTU/Hr used is less than the maximum BTU/Hr the space can support, the space

is an unconfined space. You will need no additional fresh air ventilation.

WW

WARNINGARNING

ARNINGARNING

ARNING

If the area in which the heater may be operated is smaller than that defined as anIf the area in which the heater may be operated is smaller than that defined as an

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

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

equate combustion and ventilation air by one of the methods described in the Na-equate combustion and ventilation air by one of the methods described in the Na-

equate combustion and ventilation air by one of the methods described in the Na-

tional Fuel Gas Codetional Fuel Gas Code

tional Fuel Gas Code,,

,,

,ANSI Z223.1,ANSI Z223.1,

ANSI Z223.1,ANSI Z223.1,

ANSI Z223.1, Section 5.3 or applicabSection 5.3 or applicab

Section 5.3 or applicabSection 5.3 or applicab

Section 5.3 or applicable local codes.le local codes.

le local codes.le local codes.

le local codes.

VENTILAVENTILA

VENTILATION AIRTION AIR

TION AIRTION AIR

TION AIR

VV

Ventilation Air Frentilation Air Fr

entilation Air Frentilation Air Fr

entilation Air From Inside Buildingom Inside Building

om Inside Buildingom Inside Building

om Inside Building

This fresh air would come from an adjoining unconfined space. When ventilating to an ad-

joining unconfined space, you must provide two permanent openings: one within 12" of the

ceiling and one within 12" of the floor into adjoining room (

see options in Figure 1)

.

Follow the

National Fuel Gas Code NFPA 54/ ANSI Z223.1, Section 5.3, Air for Combustion

and Ventilation

for required size of ventilation grills or ducts.

WW

WARNINGARNING

ARNINGARNING

ARNING

Rework worksheet, adding the space of the adjoining unconfined space. TheRework worksheet, adding the space of the adjoining unconfined space. The

Rework worksheet, adding the space of the adjoining unconfined space. The

combined spaces must have enough fresh air to supply all appliances in bothcombined spaces must have enough fresh air to supply all appliances in both

combined spaces must have enough fresh air to supply all appliances in both

spaces.spaces.

spaces.

Figure 1 -Figure 1 -

Figure 1 - VV

VV

Ventilation Air frentilation Air fr

entilation Air frentilation Air fr

entilation Air from Inside Buildingom Inside Building

om Inside Buildingom Inside Building

om Inside Building

VENTILATION GRILLS INTO

ADJOINING ROOM.

OPTION 2OPTION 2

OPTION 2

VENTILATION GRILLS

INTOADJOINING

ROOM.

OPTION 1OPTION 1

OPTION 1

OR REMOVE DOOR INTO

ADJOINING ROOM.

OPTION 3OPTION 3

OPTION 3

9

AIR FOR COMBUSTION AND VENTILATION

CONTINUED

VV

Ventilation Air Frentilation Air Fr

entilation Air Frentilation Air Fr

entilation Air From Outdoorom Outdoor

om Outdoorom Outdoor

om Outdoorss

ss

s

Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent

openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items

directly to the outdoors or spaces open to the outdoors. These spaces include attics and

crawl spaces. (

See Figure 2

)

IMPORTANT:Do not provide openings for inlet or outlet air into attic if attic has a thermostat-

controlled power vent. Heated air entering the attic will activate the power vent.

WW

WARNINGARNING

ARNINGARNING

ARNING

Maintain the minimum clearances. If you can, provide greater clearances fromMaintain the minimum clearances. If you can, provide greater clearances from

Maintain the minimum clearances. If you can, provide greater clearances from

floorfloor

floor,,

,,

,ceiling,ceiling,

ceiling,ceiling,

ceiling, and adjoining wall.and adjoining wall.

and adjoining wall.and adjoining wall.

and adjoining wall.

INSTINST

INSTALLAALLA

ALLAALLA

ALLATION CLEARANCESTION CLEARANCES

TION CLEARANCESTION CLEARANCES

TION CLEARANCES

Carefully follow the instructions below. This will ensure safe installation.

MinimMinim

Minimumum

umum

umWW

WW

Wall and Ceiling Clearances (all and Ceiling Clearances (

all and Ceiling Clearances (all and Ceiling Clearances (

all and Ceiling Clearances (

see Figure 3see Figure 3

see Figure 3

))

)

A. Clearances from the side of the firebox opening to any combustible wall should not

be less than 12 inches.

B. Clearances from the top of the firebox opening to the ceiling should not be less than

42 inches.

Mantel Clearances for Conventional InstallationMantel Clearances for Conventional Installation

Mantel Clearances for Conventional Installation

INSTALLATION

Figure 2 -Figure 2 -

Figure 2 - VV

VV

Ventilation Air frentilation Air fr

entilation Air frentilation Air fr

entilation Air from Outdoorom Outdoor

om Outdoorom Outdoor

om Outdoorss

ss

s

OUTLET AIR

OUTLET

AIR

INTAKE

AIR

INTAKE AIR

VENTILATED ATTIC

VENTILATED

CRAWL SPACE

TO

CRAWL

SPACE

TO

ATTIC

10

MINIMUM CLEARANCES TO COMBUSTIBLES

12" TO

SIDE WALL

42"

RIGHT SIDE REQUIRES

18" TO COMBUSTIBLES

FOR ACCESS DOOR TO

CONTROLS.

Figure 3 - MinimFigure 3 - Minim

Figure 3 - Minimum Clearance toum Clearance to

um Clearance toum Clearance to

um Clearance to WW

WW

Wall and Ceilingall and Ceiling

all and Ceilingall and Ceiling

all and Ceiling

SCREEN REMOVAL

11

1. Remove the two(2) screws in the top of the screen.

2. Lean the top of the screen outward and lift slightly up and out of the screen retainer.

3. To reinstall the screen, reverse steps 1 and 2.

WARNING: The screen mustWARNING: The screen must

WARNING: The screen must

be in place during operation.be in place during operation.

be in place during operation.

GAS CONNECTION

CAUTIONCAUTION

CAUTION

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

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

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

greaterdiametertoallowfullgasvolumetoheater.Excessivepressurelosswillgreaterdiametertoallowfullgasvolumetoheater.Excessivepressurelosswill

greaterdiametertoallowfullgasvolumetoheater.Excessivepressurelosswill

occur if the pipe is too small.occur if the pipe is too small.

occur if the pipe is too small.

A manual shutoff valve, union and plugged 1/8" NPT pressure tapping pointA manual shutoff valve, union and plugged 1/8" NPT pressure tapping point

A manual shutoff valve, union and plugged 1/8" NPT pressure tapping point

must be installed upstream of the heater (FIGURE 8).must be installed upstream of the heater (FIGURE 8).

must be installed upstream of the heater (FIGURE 8).

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

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

and contaminants from passing through the pipe to the heater controls andand contaminants from passing through the pipe to the heater controls and

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

burners. Failure to do so could prevent the heater from operating reliablyburners. Failure to do so could prevent the heater from operating reliably

burners. Failure to do so could prevent the heater from operating reliably

(FIGURE 8).(FIGURE 8).

(FIGURE 8).

A qualified gas appliance installer must connect the fireplace toA qualified gas appliance installer must connect the fireplace to

A qualified gas appliance installer must connect the fireplace to

the gas supplthe gas suppl

the gas supplyy

yy

y..

..

.Consult all local codes.Consult all local codes.

Consult all local codes.Consult all local codes.

Consult all local codes.

IMPORTANT:IMPORTANT:

IMPORTANT: Loosen the pipe adapter

on the flex tube before installing to the

system piping.

FIGURE 5. Gas ConnectionFIGURE 5. Gas Connection

FIGURE 5. Gas Connection

CHECKGAS TYPE:CHECKGAS TYPE:

CHECKGAS TYPE:Thegassupplymustbethesameasstatedonheater'sratingplate.Ifthe

gassupplyisdifferent,DONOTINSTALLtheheater.Contactyourdealerforthecorrectmodel.

WW

WARNINGARNING

ARNINGARNING

ARNING

Connecting directly to an unregulated propane/LPG tank canConnecting directly to an unregulated propane/LPG tank can

Connecting directly to an unregulated propane/LPG tank can

cause an explosion.cause an explosion.

cause an explosion.

NOTICENOTICE

NOTICE

12

Theheaterregulatorcontrolstheburnerpressurewhichshouldbecheckedatthepressuretest

point 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.

The appliance and its individual shutoff valve must disconnected from the gas supply piping

systemduringanypressuretestingofthatsystemattestpressuresinexcessof½psi(35kPa).

GAS CONNECTION,

CONTINUED...

GAS PRESSURE CHECK

Thegasinletconnection is 3/8"NPT,madeatthetop of the

controlcoverinsidetheaccessdoorofthemantel. Rungas

line from the gas supply to the connection. A flex pipe

connector is suggested for easy connection.

Testallgas joints from the gas meter to the heaterforleaks

usingsoap and water solution after completing connection.

DO NOT USE AN OPEN FLAME.

FIGURE 6. Flex Pipe Connected to controlFIGURE 6. Flex Pipe Connected to control

FIGURE 6. Flex Pipe Connected to control

GAS INLET

13

LOG ASSEMBLY

LOG POSITIONINGLOG POSITIONING

LOG POSITIONING

This unit is supplied with a set of four ceramic fiber logs. Do not handle these logs with your

bare hands! Always wear gloves to prevent skin irritation from ceramic fibers. After handling

logs, wash your hands gently with soap and water to remove any traces of fibers.

PROPER INSTALLATION SEQUENCE:PROPER INSTALLATION SEQUENCE:

PROPER INSTALLATION SEQUENCE:

1. Installthe rearlog(#2) ontherear setoflocators. Visually checktoverifythelogissecurely

placed on the locators.

2. Install the front log (#1) on the front locators. Visually check to verify the log is securely

placed on the locators.

3. Place the cross logs on the locator studs in the log as shown. The flame should not touch

the cross logs otherwise suiting will occur.

WARNING: Failure to position theWARNING: Failure to position the

WARNING: Failure to position the

parts in accordance with theseparts in accordance with these

parts in accordance with these

diagrams or failure to use onlydiagrams or failure to use only

diagrams or failure to use only

parts specifically approved withparts specifically approved with

parts specifically approved with

this heater may result in propertythis heater may result in property

this heater may result in property

damage or personal injury.damage or personal injury.

damage or personal injury.

WW

WARNINGARNING

ARNINGARNING

ARNING

The positioning of the logs is critical to the safe and cleanThe positioning of the logs is critical to the safe and clean

The positioning of the logs is critical to the safe and clean

operationof this heateroperationof this heater

operationof this heater..

..

.Sootingand other prSootingand other pr

Sooting and otherprSooting and otherpr

Sooting and otherprobob

obob

oblems malemsma

lemsmalems ma

lemsmay resultify resultif

yresult ifyresult if

yresult if

the logs are not properly and firmly situated in the appliance.the logs are not properly and firmly situated in the appliance.

the logs are not properly and firmly situated in the appliance.

Neveraddadditionallogsorembellishmentssuchaspinecones,Neveraddadditionallogsorembellishmentssuchaspinecones,

Neveraddadditionallogsorembellishmentssuchaspinecones,

vermiculite or rvermiculite or r

vermiculite or rococ

ococ

ock wk w

k wk w

k wool to the heaterool to the heater

ool to the heaterool to the heater

ool to the heater..

..

.

FIGURE 8 - Log Set AssemblyFIGURE 8 - Log Set Assembly

FIGURE 8 - Log Set Assembly

14

#2

#1

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 fireplace. Ceiling fans may create drafts that

alter burner flame patterns. Sooting and improper burning will occur.

Thisvent-freegasheaterisintendedtobesmokeless.Iflogsappeartosmoke,turnofftheheater

andcall a qualified service person.Initial burn off may causeslight smoke and odor duringthe

first four hours of operation.

FOR YOUR SAFETY READ BEFORE LIGHTINGFOR YOUR SAFETY READ BEFORE LIGHTING

FOR YOUR SAFETY READ BEFORE LIGHTING

WW

WARNING:ARNING:

ARNING:ARNING:

ARNING:If yIfy

IfyIfy

Ifyoudonotfoudonotf

oudonot foudonot f

oudonot folloollo

olloollo

ollowtheseinstructions ewtheseinstructions e

wtheseinstructions ewtheseinstructionse

wtheseinstructions exactlxactl

xactlxactl

xactlyy

yy

y,,

,,

,afireorafireor

afireorafireor

afireor

explosionmayresultcausingpropertydamage,personalinjuryorexplosionmayresultcausingpropertydamage,personalinjuryor

explosionmayresultcausingpropertydamage,personalinjuryor

loss of life.loss of life.

loss of life.

This appliance has a pilot which can be light with the equipped piezo ignitor. When

lighting the pilot, follow these instructions exactly.

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 GASWHAT TO DO IF YOU SMELL GAS

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 you cannot reach your gas supplier, call the fire department.

Use only 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.

Donotusethis appliance if any part has been under water. Immediately call aqualified

servicetechniciantoinspecttheapplianceandtoreplaceanypartofthecontrolsystem

and any gas control which has been under water.

A.

B.

C.

D.

FOR YOUR SAFETYFOR YOUR SAFETY

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any

other appliance.

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

15

WARNINGWARNING

WARNING

If the knob does not pop up when re-

leased, stop and immediately call your

service technician or gas supplier. If the

pilotwillnotstaylitafterseveraltries,turn

control knob to "OFF" and call your gas

supplier.

9. Turnvalveknobclockwise to"ON".

10. Wait about one minute then turn burner

switch (D) to "ON". It will take a few

minutesforthe thermopilelocatedon top

of the pilot to heat up.

NOTE:Ifunitisequippedwithremote"on-off"

wallswitch,switchmustbein"on"positionfor

burner to light.

11. Adjust flame height with the high-low

knob(C).

12. Turn on all electrical power to the appli-

ance.

13. Close access door.

NOTE: It is normal for the new heater to give

offsomeodorthefirsttimeitisburned. Thisis

duetothecuringofthepaintandanyundetec-

ted oil from the manufacturing process.

It is recommended that you burn your new

heater for at least two(2) hours the first time

you use it. If optional fan kit is installed, leave

it turned off for the break in period.

OPERATING INSTRUCTIONS,

CONTINUED

1. Open access door.

2. Turn switch (D) to "OFF"

3. Unplug all electric power if service is to be performed.

4. Push in gas control knob slightly and turn clockwise to the "OFF" position.

5. Close access door.

TURN OFF GAS TO APPLIANCETURN OFF GAS TO APPLIANCE

TURN OFF GAS TO APPLIANCE

16

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

clockwise to "OFF".

5. Push "ON / OFF" switch to "OFF" posi-

tion.

NOTE: Knob cannot be turned from "PILOT"

to"OFF"unlessknobispushedinslightly. Do

notforce.

6. Waitfive(5)minutestoclearoutanygas.

Then smell for gas, including near the

floor. Ifyousmellgas,STOP! Follow"B"

in the safety information on the previous

page. If you don't smell gas, go on to the

nextstep.

7. Depress knob (B) and turn gas control

knob counterclockwise to "Pilot".

8. Push in knob (B) all the way and hold in.

Immediately light the pilot by pushing in

onthepiezobutton(A). Continue to hold

thecontrolknobinforaboutone(1)minute

after the pilot is lit. Release knob and it

willpopbackup.Pilotshouldremainlit. If

it goes out, repeat steps 4 through 8.

LIGHTING INSTRUCTIONSLIGHTING INSTRUCTIONS

LIGHTING INSTRUCTIONS

C

A

BD

PILOT LOCATION

TOP VIEW OF BURNER ASSEMBLY

OPERATING INSTRUCTIONS,

CONTINUED

MATCH LIGHTING INSTRUCTIONSMATCH LIGHTING INSTRUCTIONS

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. 16) to the pilot

positionandhold down. Light match and place near pilot. Once pilotislit,continue to hold the

knob for about ten seconds. Then follow steps 7 thru 10 on page 16.

WARNINGWARNING

WARNING

WW

Wait 30 seconds befait 30 seconds bef

ait 30 seconds befait 30 seconds bef

ait 30 seconds before readjusting the heater when the controre readjusting the heater when the contr

ore readjusting the heater when the controre readjusting the heater when the contr

ore readjusting the heater when the controlol

olol

ol

has been turned down to a lower setting.has been turned down to a lower setting.

has been turned down to a lower setting.

PILOT FLAMEPILOT FLAME

PILOT FLAME

The pilot flame should always be present

when the heater is in operation and should

just touch the top of the thermocouple tip

(FIGURE 9).

If the pilot flame does not touch the thermo-

couple, then the main burner is unlikely to

function reliably (FIGURE 10).

FIGURE 9 - Pilot Flame FIGURE 10 - Incorrect Shape of Pilot FlameFIGURE 9 - Pilot Flame FIGURE 10 - Incorrect Shape of Pilot Flame

FIGURE 9 - Pilot Flame FIGURE 10 - Incorrect Shape of Pilot Flame

Annualinspectionand cleaningbyyour dealerorqualifiedservice technicianisrecommended

to prevent malfunction and/or sooting.

Remove logs, handling carefully by holding gently at each end. Gloves are recommended to

prevent skin irritation from ceramic. If the skin becomes irritated, wash gently with soap and

water. Refer to page 14 for correct log placement.

CLEANING / SERVICING

WARNINGWARNING

WARNING TT

TT

Turn off heater and allourn off heater and allo

urn off heater and allourn off heater and allo

urn off heater and allow to cool befw to cool bef

w to cool befw to cool bef

w to cool before core c

ore core c

ore cleaning.leaning.

leaning.leaning.

leaning.

17

CHECKING FLAME APPEARANCECHECKING FLAME APPEARANCE

CHECKING FLAME APPEARANCE

Flames from the pilot, front and rear burner should be visually checked when the heater is

installed. In addition a periodic visual check of the flames should be made.

CLEANING / SERVICING,

CONTINUED

FLAMESFLAMES

FLAMES

Theflamesbehind log#1,and infrontoflog #2,shouldbeyellowwithablue base. Theflames

should not be impinging on either of the cross logs. (See Below, Figure 11)

FLAME APPEARANCE

FIGURE 11 - Flames, Natural Gas and LP GasFIGURE 11 - Flames, Natural Gas and LP Gas

FIGURE 11 - Flames, Natural Gas and LP Gas

18

Periodic CleaningPeriodic Cleaning

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/InspectionAnnual Cleaning/Inspection

Annual Cleaning/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.

• 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 be

observed.

CAUTION:CAUTION:

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can

cause improper and dangerous operation. Verify proper operation after servicing.

#2 #1

PARTS DIAGRAM AND PARTS LIST

19

1

2

3

4

5

6

7

8

9

10

11 12

13

14

18

19

22

23

24

2828

28

B

DA

C

25

26

20

21

27

15

16

17

KEYKEY

KEY PART #PART #

PART #PART #

PART # DESCRIPTIONDESCRIPTION

DESCRIPTIONDESCRIPTION

DESCRIPTION QTY.QTY.

QTY.QTY.

QTY.

1 24988B LEFT SIDE CABINET 1

2 24993B BURNER PLATE 1

3 24991B FIREBOX BOTTOM 1

4 89921 "O.P. AMERICA" NAT. PILOT 1

- 89922 "O.P. AMERICA" L.P. PILOT 1

5 80423 PIEZO IGNITOR WIRE 2

6 89842 3/16" BRASS BALL SLEEVE 1

7 89841 3/16" COMPRESSION NUT 1

8 81206 PILOT TUBE (18") 1

9 89856 3/16" LOXIT FITTING 1

10 89965 BURNER CONTROL FITTING (LP) 1

- 89966 BURNER CONTROL FITTING (NAT) 1

11 89822 BURNER 1

12 89761 PIEZO IGNITOR 1

13 C42373 ON/OFF TOGGLE SWITCH 1

14 24996B CONTROL COVER 1

15 81198 MILIVOLT CONTROL (NATURAL) 1

- 81202 MILIVOLT CONTROL (LIQUID PROPANE) 1

** 83464 10-32 x 3/8 MACHINE SCREW 4

16 24788B CONTROL BRACKET 1

17 80376 WIRE ASSEMBLY 1

18 24987B RIGHT SIDE CABINET 1

19 24994 FIREBOX SUPPORT 1

20 24986B CABINET BOTTOM/BACK 1

21 24998B BLOWER BAFFLE 1

22 24990B FIREBOX WRAPPER 1

23 24992B FIREBOX TOP 1

24 24989B CABINET TOP 1

25 25001B SCREEN 1

26 25000B SCREEN RETAINER/MANTEL STOP 2

27 24999B BLOWER PLATE 1

28 89826 LOG SET 1

a 89826-1 FRONT LOG 1

b 89826-2 REAR LOG 1

c 89826-3 RIGHT CROSS LOG 1

d 89826-4 LEFTCROSS LOG 1

** 89967 MANTEL 1

** 89390A RUBBER GROMMET 1

2020 ASSEMBLY PARTS LIST

20

** = NOT SHOWN

USSC 2020N Operation manual

Popular Indoor Fireplace manuals by other brands