Vanguard Vn1000bt Quick start guide

Save this manual for future reference.

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.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is

installed. Provisions for adequate combustion must be provided. Refer to page 3 of this manual.

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.

BLUE FLAME

VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION

MANUAL

10,000 BTU/HR THERMOSTATICALLY-CONTROLLED MODELS

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

Carbon Monoxide Poisoning: Early

signs of carbon monoxide poisoning re-

semble the flu, with headaches, dizziness,

and/or nausea. If you have these signs, the

heater may not be working properly. Get

fresh air at once! Have heater serviced.

Some people are more affected by carbon

monoxide than others. These include preg-

nant women, people with heart or lung dis-

easeoranemia,thoseundertheinfluenceof

alcohol, and those at high altitudes.

Natural Gas:Natural gas is odorless. An

odor-making agent is added to natural gas.

Theodorhelpsyoudetectanaturalgasleak.

However, the odor added to natural gas can

fade.Naturalgasmaybepresenteventhough

no odor exists.

Make certain you read and understand all

Warnings. Keep this manual for reference.

It is your guide to safe and proper operation

of this heater.

1. This appliance is only for use with the

typeof gas indicatedonthe rating plate.

Thisappliance is not convertibleforuse

with other gases.

2. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch;

do not use any phone in your build-

ing

• immediately call your gas supplier

from a neighbor’s phone. Follow the

gas supplier’s instructions

• ifyou cannot reachyour gas supplier,

call the fire department

3. Heater shall not be installed in a bath-

room.

4. Never install the heater

• in a recreational vehicle

• wherecurtains, furniture, clothing, or

otherflammable objects are less than

36inches from the front, top,or sides

of the heater

• as a fireplace insert

• in high traffic areas

• in windy or drafty areas

5. This heater needsfresh, outside airven-

tilation to run properly. This heater has

an oxygen depletion sensor (ODS) pi-

lot light safety system. The ODS shuts

down the heater if not enough fresh air

is available. See Air for Combustion

and Ventilation, pages 3 through 5.

6. Keep all air openings in front and bot-

tom of heater clear and free of debris.

This will insure enough air for proper

combustion.

7. If heater shuts off, do not relight until

you provide fresh, outside air. If heater

keeps shutting off, have it serviced.

8. Do not run heater

• where flammable liquids or vapors

are used or stored

• under dusty conditions

9. Never place any objects on the heater.

10. Surface of heater becomes very hot

whenrunningheater. Keepchildrenand

adults away from hot surface to avoid

burns or clothing ignition. Heater will

remain hot for a time after shutdown.

Allow surface to cool before touching.

SAFETY

INFORMATION

WARNINGS

IMPORTANT: Read this owner’s

manual carefully and completely

before trying to assemble, oper-

ate, or service this heater. Im-

proper use of this heater can

causeseriousinjuryordeathfrom

burns, fire, explosion, and car-

bon monoxide poisoning.

DANGER: Carbon monoxide

poisoning may lead to death!

WARNING:Anychangetothis

heateror itscontrolscan bedan-

gerous.

11. Carefully supervise young children

when they are in same room with

heater.

12. Make sure grill guard is in place be-

fore running heater.

13. Do not use heater if any part has been

under water. Immediately call a quali-

fied 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.

14. Turn off heater and let cool before ser-

vicing. Only a qualified service person

should service and repair heater.

15. Operating heater above elevations of

4,500 feet could cause pilot outage.

102392

OWNER’S MANUAL

PRODUCT

IDENTIFICATION

LOCAL CODES

Install and use heater with care. Follow all

local codes. In the absence of local codes,

use the latest edition of The National Fuel

GasCodeANSIZ223.1alsoknownasNFPA

54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

Figure 1 - Vent-Free Natural Gas Heater

Heater

Cabinet

Grill

Guard

Glass

Panel

Front

Panel

Control Knob

Ignitor Button

1. Remove heater from carton.

2. Remove all protective packaging ap-

plied to heater for shipment.

3. Check heater for any shipping damage.

If heater is damaged, promptly inform

dealer where you bought heater.

UNPACKING

PRODUCT

FEATURES

SAFETY PILOT

This heater has a pilot with an Oxygen

Depletion Sensor Shutoff System (ODS).

TheODS/pilotisarequiredfeatureforvent-

free room heaters. The ODS/pilot shuts off

the heater if there is not enough fresh air.

PIEZO IGNITION SYSTEM

This heater has a piezo ignitor. This system

requires no matches, batteries, or other

sources to light heater.

AIR FOR

COMBUSTION AND

VENTILATION

Today’s homes are built more energy effi-

cient than ever. New materials, increased

insulation, and new construction methods

help reduce heat loss in homes. Home own-

ersweatherstripandcaulkaroundwindows

and doors to keep the cold air out and the

warm air in. During heating months, home

owners want their homes as airtight as pos-

sible.

While it is good to make your home energy

efficient,yourhomeneedstobreathe.Fresh

air must enter your home. All fuel-burning

appliances need fresh air for proper com-

bustion and ventilation.

Exhaustfans,fireplaces,clothesdryers,and

fuel burning appliances draw air from the

house to operate. You must provide ad-

equate fresh air for these appliances. This

will insure proper venting of vented fuel-

burning appliances.

PROVIDING ADEQUATE

VENTILATION

ThefollowingisexerptsfromNationalFuel

Gas Code. NFPA 54/ANSI Z223.1, Section

5.3, Air for Combustion and Ventilation.

Allspacesinhomesfallintooneofthethree

following ventilation classifications:

1. Unusually Tight Contruction; 2. Uncon-

fined Space; 3. Confined Space.

The information on pages 4 and 5 will help

you classify your space and provide ad-

equate ventilation.

WARNING: This heater shall

not be installed in a confined

spaceunlessprovisionsare pro-

vided for adequate combustion

and ventilation air. Read the fol-

lowing instructions to insure

properfreshairforthisandother

fuel-burning appliances in your

home.

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

WARNING:Iftheareainwhich

the heater may be operated is

smaller than that defined as an

unconfined space, provide ad-

equate combustion and ventila-

tion air by one of the methods

described in the

National Fuel

Gas Code, ANSI Z223.1, 1992,

Section 5.3 or applicable local

codes.

AIR FOR

COMBUSTION AND

VENTILATION

Continued

Unusually Tight Construction

The air that leaks around doors and win-

dows 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:

a. walls and ceilings exposed to

the outside atmosphere have

a continuous water vapor

retarder with a rating of one

perm (6x10-11 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 ap-

plied to areas such as joints

around window and door

frames, between sole plates

and floors, between wall-ceil-

ing joints, between wall pan-

els,atpenetrations forplumb-

ing, electrical, and gas lines,

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 5

If your home does not meet all of

the three criteria above, proceed to

Determining Fresh-Air flow For

Heater Location.

Confined and Unconfined Space

TheNationalFuelGasCode(ANSIZ2123.1,

1992 Section 5.3) defines a confined space

as a space whose volume is less than 50

cubicfeetper1,000Btuperhour(4.8m3per

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 (4.8 m3 per kw) of the aggregate

inputratingofallappliancesinstalledinthat

space.Roomscommunicatingdirectlywith

the space in which the appliances are in-

stalled*, through openings not furnished

with doors, are considered a part of the

unconfined space.

*Adjoiningroomsarecommunicatingonly

iftherearedoorlesspassagewaysorventila-

tion grills between them.

DETERMINING FRESH-AIR

FLOW FOR HEATER

LOCATION

Determining if You Have a

Confined or Unconfined Space

Usethisworksheetto determineifyouhave

a confined or unconfined space.

Space: Includes the room in which you

will install heater 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

18 ft. (length) x 16 ft. (width) x 8 ft.

(ceiling height) =

2304 cu. ft. (volume of space)

If additional ventilation to adjoining

room is supplied with grills or open-

ings, 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 sup-

port)

Example:

2304 cu. ft. (volume of

space) ÷50 cu. ft. = 46.1 or 46,100

(maximum Btu/Hr the space can sup-

port)

3. Add the Btu/Hr of all fuel burning ap-

pliances in the space.

Vent-free heater _________ Btu/Hr

Gas water heater*________ Btu/Hr

Gas furnace ____________ Btu/Hr

Vented gas heater ________ Btu/Hr

Gas fireplace logs________ Btu/Hr

Other gas

appliances* + ___________ Btu/Hr

Total = ________________ Btu/Hr

Example:

Gas water heater

40,000 Btu/Hr

Vent-free heater +10,000 Btu/Hr

Total = 50,000 Btu/Hr

* Do not include direct-vent gas appli-

ances. 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:

46,100 Btu/Hr (maximum

the space can support)

50,000 Btu/Hr (actual

amount of Btu/Hr used)

The space in the above example is a con-

fined space because the actual Btu/Hr used

ismorethanthemaximumBtu/Hrthespace

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 ventila-

tion grills between rooms. See Ventila-

tion Air From Inside Building, page 5.

B. Vent room directly to the outdoors. See

VentilationAir From Outdoors, page 5.

C. Install a lower Btu/Hr heater, if lower

Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the

maximumBtu/Hrthespacecansupport,the

spaceisanunconfinedspace.Youwillneed

no additional fresh air ventilation.

102392

OWNER’S MANUAL

Figure 2 - Ventilation Air from Inside Building

Remove

Door into

Adjoining

Room,

Option 3

Ventilation Grills

Into Adjoining Room,

Option 2

12"

Ventilation

Grills

into Adjoining

Room,

Option 1

AIR FOR

COMBUSTION AND

VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside

Building

Thisfreshairwouldcomefromanadjoining

unconfined space. When ventilating to an

adjoining unconfined space, you must pro-

vide two permanent openings: one within

12" of the ceiling and one within 12" of the

floor on the wall connecting the two spaces

(seeoptions1and2,Figure2).Youcanalso

remove door into adjoining room (see op-

tion 3, Figure 2). 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.

WARNING: Rework work-

sheet, adding the space of the

adjoiningunconfinedspace.The

combined spaces must have

enough fresh air to supply all

appliances in both spaces.

Figure 3 - Ventilation Air from Outdoors

Outlet

Air Ventilated

Attic

Outlet

Air

Inlet

Air

Inlet Air Ventilated

Crawl Space

Crawl

Space

To Attic

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation

grills or ducts. You must provide two per-

manent openings: one within 12" of the

ceiling and one within 12" of the floor.

Connecttheseitemsdirectlytotheoutdoors

orspacesopentotheoutdoors.Thesespaces

include attics and crawl spaces. Follow the

National Fuel Gas Code NFPA 54/ANSI

Z223.1,Section5.3,AirforCombustionand

Ventilation for required size of ventilation

grills or ducts.

IMPORTANT:

Do not provide openings for inlet or outlet air into attic if attic has a

thermostat-controlledpowervent.Heatedair entering theatticwillactivatethepowervent.

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

Figure 5 - Mounting Screw Locations

Mounting

Screw

Locations

8 7/8"

Minimum To

Maintain 6"

Clearance

From Wall

7 3/4"

20 1/4"

Minimum To

Maintain 3"

Clearance

From Floor

FLOOR

JOINING WALL

INSTALLING HEATER TO

WALL

Marking Screw Locations

1. Determine where youwill locate heater.

2. Mark two mounting screw locations on

wall (see Figure 5).

WARNING:Maintainminimum

clearances shown in Figure 5. If

you can, provide greater clear-

ancesfromfloorandjoiningwall.

Forconvenienceandefficiency,installheater

• where there is easy access for opera-

tion, inspection, and service

• in coldest part of room

Figure4-MountingClearancesAsViewed

From Front of Heater

36"

FLOOR

CEILING

Minimum

Of Carpet

Combusti

Minimum

From

Sides Of

Heater

Right

Side

Left

Side

THERMOSTAT SENSING

BULB

The thermostat sensing bulb is located in-

side the heater. Do not move this bulb dur-

ing installation or operation of the heater.

INSTALLING TO

WALL

CHECK GAS TYPE

Use only natural gas. If your gas supply is

notnatural,donotinstall heater. Call dealer

where you bought heater for proper type

heater.

INSTALLATION ITEMS

Beforeinstallingheater,makesureyouhave

the items listed below:

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• manual shutoff valve *

• ground joint union

• test gauge connection * (see Figure

12, page 8)

• sediment trap

• tee joint

• pipe wrench

NOTICE: A qualified service per-

son must install heater. Follow

all local codes.

*AnA.G.A.design-certifiedmanualshutoff

valve with 1/8" NPT tap is an acceptable

alternative to test gauge connection. Pur-

chase the optional A.G.A. design-certified

manual shutoff valve from your dealer. See

Accessory, page 15.

LOCATING HEATER

This heater is designed to be mounted on a

wall.

WARNING:Maintainthemini-

mumclearancesshowninFigure

4.Ifyoucan,providegreaterclear-

ancesfromfloor,ceiling,andjoin-

ing wall.

CAUTION: If you install the

heater in a home garage

• heater pilot and burner must

be at least 18 inches above

floor

• locateheaterwheremovingve-

hicle will not hit it

IMPORTANT:

Vent-freeheatersaddmois-

ture to the air. Although this is beneficial,

installing heater in rooms without enough

ventilation air may cause mildew to form

from too much moisture. See Air for Com-

bustion and Ventilation, pages 3 through 5.

CAUTION: This heater cre-

ates warm air currents. These

currents move heat to wall sur-

faces next to heater. Installing

heater next to vinyl or cloth wall

coverings or operating heater

where impurities in the air (such

as tobacco smoke) exist, may

discolor walls.

WARNING: Never install the

heater

• in a bathroom

• in a recreational vehicle

• where curtains, furniture,

clothing, or other flammable

objectsarelessthan36inches

from the front, top, or sides of

the heater

• as a fireplace insert

• in high traffic areas

• in windy or drafty areas

Continued

Minimum To

Top Surface

Of Carpeting,

Tile Or Other

Combustible

Material

102392

OWNER’S MANUAL

Installing Two Mounting Screws

Note:

Wall anchors and mounting screws

areinhardwarepackage.Thehardwarepack-

age is provided with heater.

Attaching to wall stud method

For attaching mounting screw to wall stud

1. Drill hole at marked location using

9/64" drill bit.

2. Insert mounting screw into wall stud.

3. Tighten screw until 1/16" space (thick-

ness of penny) is between screwhead

and wall.

Attaching to wall anchor

method

Follow instructions below to attach mount-

ing screws to hollow walls (wall areas be-

tween studs) or solid walls (concrete or

masonry).

1. Drill holes at marked locations using

5/16" drill bit. For solid walls (concrete

or masonry), drill at least 1 1/4" deep.

2. Fold wall anchor (see Figure 6).

Figure 6 - Folding Anchor

3. Insert wall anchor (wings first) into

hole. Tap anchor flush to wall.

4. For thin walls (1/2" or less), insert red

key into wall anchor. Push red key to

“pop” open anchor wings (see Figure

7).

IMPORTANT:

Do not hammerkey!

Forthickwalls(over 1/2"thick) orsolid

walls, do not pop open wings.

Figure 7 - Popping Open Anchor Wings

For Thin Walls

Thin Walls

(1/4" to 1/2"

thick)

5. Tighten two screws until 1/16" space

(thickness of penny) is between

screwheads and wall (see Figure 8).

ANCHOR

Thin or

Thick Wall

(thick wall

shown)

Solid

Wall

1/16"

Space

Figure 8 - Tightening Anchors

INSTALLING TO

WALL

Continued

Placing Heater On Mounting

Screws

1. Locate two keyhole slots on back panel

of heater (see Figure 9).

2. Place large openings of slots over

screwheads. Slide heater down until

screws are in small portion of slots.

Figure 11 - Installing Bottom Mounting

Screw

Figure 9 - Location Of Keyhole Slots On

Back Panel Of Heater

Removing Front Panel Of Heater

1. Remove two screws near bottom cor-

ners of front panel.

2. Lift straight up on grill guard until it

stops. Grill guard will slide up about

1/4".

3. Pull bottom of frontpanelforward,then

down.

Keyhole Slots

Installing Bottom Mounting

Screw

1. Locate bottom mounting hole. This

hole is near bottom on back panel of

heater (see Figure 11).

2. Mark screw location on wall.

3. Remove heater from wall.

4. If installing bottom mounting screw

into hollow or solid wall, install wall

anchor. Follow steps 1 through 5 under

Attaching To Wall Anchor Method.

If installing bottom mounting screw

into wall stud, drill hole at marked lo-

cation using 9/64" drill bit.

5. Replace heater on wall.

6. Insert bottom anchor screw through

backpanelinto bottom anchor ordrilled

hole (see Figure 11).

7. Tighten screw until heater is firmly se-

cured to wall. Do not over tighten.

Note:

Do not replace front panel at this

time. Replace front panel after making

gas connections and checking for leaks

(see pages 8 and 9).

Figure 10 - Removing Front Panel Of

Heater

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

IMPORTANT:

Hold pressureregulatorwithwrenchwhenconnectingittogaspipingand/

or fittings.

* An A.G.A. design certified manual shutoff valve with 1/8" NPT tap is an acceptable

alternative to test gauge connection. Purchase the optional A.G.A. design certified manual

shutoff valve from your dealer. See Accessory, page 15.

Tee Joint

Reducer

Bushing to

1/8" NPT

Plug Tap

Test

Gauge

Connection *

Pressure

Regulator

Tee

Joint

Pipe

Nipple

Cap

Sediment Trap

Heater

Cabinet

3/8" NPT

Pipe Nipple

Ground Joint Union

Manual

Shutoff Valve *

From

External

Regulator

(4" W.C. to

10.5" W.C.

Pressure)

Figure 12 - Gas Connection

3" Minimum

CONNECTING TO

GAS

SUPPLY

NOTICE: A qualified service per-

son must connect heater to gas

supply. Follow all local codes.

IMPORTANT

:Check gas line pressure

before connecting heater to gas line. Gas

line pressure must be no greater than 14

inchesofwater.Ifgaslinepressureishigher,

heater regulator damage could occur.

Installation must include a manual shutoff

valve, ground joint union, and plugged

1/8" NPT tap. Locate NPT tap within reach

for test gauge hook up. NPT tap must be

upstream from heater (see Figure 12).

Apply pipe joint sealant lightly to male

threads. This will prevent excess sealant

fromgoing into pipe. Excesssealant in pipe

could result in clogged heater valves.

Install sediment trap (trap) in supply line as

shown in Figure 12. Locate sediment trap

whereitiswithinreachforcleaning.Locate

sediment trap where trapped matter is not

likelytofreeze.Asedimenttraptrapsmois-

ture and contaminants. This keeps them

fromgoing into heatercontrols. If sediment

trap is not installed or is installed wrong,

heater may not run properly.

CAUTION: Use only new,

blackironorsteelpipe.Internally-

tinnedcoppertubingmaybeused

incertainareas.Check yourlocal

codes. Use pipe 3/8" diameter or

greater to allow proper gas vol-

umetoheater.Ifpipeistoosmall,

undue loss of pressure will oc-

cur.

WARNING: Never connect

heater to private (non-utility) gas

wells. This gas is commonly

known as wellhead gas.

CAUTION:Usepipejointseal-

ant that is resistant to liquid pe-

troleum (LP) gas.

102392

OWNER’S MANUAL

CHECKING GAS

CONNECTIONS

WARNING: Test all gas pip-

ing and connections for leaks

after installing or servicing. Cor-

rect all leaks at once.

WARNING:Neveruseanopen

flame to check for a leak. Apply a

mixture of liquid soap and water

to all joints. Bubbles forming

show a leak. Correct all leaks at

once.

PRESSURE TESTING GAS

SUPPLY PIPING SYSTEM

Test Pressures In Excess Of 1/2

PSIG

1. Disconnect heater and its individual

manual shutoff valve from gas supply

piping system. Pressures in excess of

1/2 psig will damage heater regulator.

2. Cap off open end of gas pipe where

manual shutoff valve was connected.

3. Pressurize supply piping system by ei-

ther using compressed air or opening

main gas valve located on or near gas

meter.

4. Check all joints of gas supply piping

system. Apply mixture of liquid soap

and water to gas joints. Bubbles form-

ing show a leak.

5. Correct all leaks at once.

Test Pressures Equal To or

Less Than 1/2 PSIG

1. Close manual shutoff valve (see Fig-

ure 13).

2. Pressurize supply piping system by ei-

ther using compressed air or opening

main gas valve located on or near gas

meter.

3. Check all joints from gas meter to

manual shutoff valve (see Figure 14).

Apply mixture of liquid soap and wa-

ter to gas joints. Bubbles forming show

a leak.

4. Correct all leaks at once.

PRESSURE TESTING

HEATER GAS

CONNECTIONS

1. Open manual shutoff valve (see Figure

13).

2. Open main gas valve located on or near

gas meter.

3. Make sure control knob of heater is in

the OFF position.

4. Check all joints from manual shutoff

valve to control valve (see Figure 14).

Apply mixture of liquid soap and wa-

ter to gas joints. Bubbles forming show

a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater,

pages 9 and 10). Check the rest of the

internal joints for leaks.

7. Turn off heater (see To Turn Off Gas To

Appliance, page 10).

8. Replace front panel.

POSITION

OFF

POSITION

Figure 13 - Manual Shutoff Valve

Manual

Shutoff

Valve

Figure 14 - Checking Gas Joints

Gas Meter

Control

Valve

Location

Open

Closed

Manual

Shutoff

Valve

OPERATING

HEATER

A. Thisappliancehas a pilotwhichmust

belightedbyhand.Whenlightingthe

pilot, follow these instructions ex-

actly.

B. BEFORE LIGHTING smell all

aroundtheapplianceareaforgas. Be

suretosmellnextto thefloor because

some gas is heavier than air and will

settle on the floor.

WHAT TO DO IF YOU SMELL

GAS

• Do not try to light any appliance.

• Do not touch any electric switch;

donotuse any phoneinyourbuild-

ing.

• Immediatelycallyourgassupplier

from a neighbor’s phone. Follow

the gas supplier’s instructions.

• If you cannot reach your gas sup-

plier, call the fire department.

C. Useonly yourhandtopush in orturn

thegas 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 or gas

supplier. Force or attempted repair

may result in a fire or explosion.

D. Do not use this appliance if any part

has been under water. Immediately

call a qualified service technician to

inspect the appliance and to replace

any part of the control system and

any gas control which has been un-

der water.

WARNING: If you do not fol-

low these instructions exactly, a

fireorexplosionmayresultcaus-

ing property damage, personal

injury or loss of life.

FOR YOUR SAFETY

READ BEFORE

LIGHTING

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

TO TURN OFF GAS

TO APPLIANCE

1. Remove front panel (see Figure 10,

page 7).

2. Followsteps 1through5underLight-

ing Instructions.

3. With control knob pressed in, strike

match. Hold match to pilot until pi-

lot lights.

4. Keep control knob pressed in for 30

seconds after lighting pilot.After 30

seconds, release control knob.

5. Replace front panel.

OPERATING

HEATER

Continued

4. Waitfive (5)minutes toclear outany

gas. Then smell for gas, including

near the floor. If you smell gas,

STOP! Follow “B” in the safety in-

formation at the top of column 3,

page 9. If you don’t smell gas, go to

the next step.

5. Turn control knob counterclockwise

C-clockwise

to the PILOT position.

Press in control knob for five (5) sec-

onds (see Figure 15).

Note:

You may be running this

heater for the first time after hook-

ing up to gas supply. If so, the con-

trol knob may need to be pressed in

for 30 seconds. This will allow air to

bleed from the gas system.

• If control knob does not pop up

when released, contact a qualified

service person or gas supplier for

repairs.

6. With control knob pressed in, push

downandreleaseignitorbutton.This

will light pilot. The pilot is attached

to the front of burner. The pilot can

be seen through the glass panel. If

needed,keep pressingignitorbutton

until pilot lights.

CAUTION:Donottrytoadjust

heating levels by using the

manual shutoff valve.

Pilot Burner

Figure 16 - Pilot

Ignitor Electrode

Thermocouple

7. Keep control knob pressed in for 30

seconds after lighting pilot.After 30

seconds, release control knob.

• If control knob does not pop up

when released, contact a qualified

service person or gas supplier for

repairs.

Note:

If pilot goes out, repeat steps

3 through 7.This heater has a safety

interlocksystem.Waitone(1)minute

before lighting pilot again.

8. Turn control knob counterclockwise

C-clockwise

to desiredheatinglevel.The

mainburnershouldlight.Set control

knob to any heat level between HI

and LO.

IGNITOR

PILOT

OFF

Control Knob

Figure 15 - Control Knob In The OFF

Position

Ignitor Button

LIGHTING

INSTRUCTIONS

1. STOP! Read the safety information,

column 3, page 9.

2. Make sure manual shutoff valve is

fully open.

3. Turncontrolknobclockwise

Clockwise

to the OFF position.

Note:

If pilot does not stay lit, refer

toTroubleshooting,pages12through

14. Also contact a qualified service

person or gas supplier for repairs.

Until repairs are made, light pilot

withmatch.Tolightpilot with match,

see Manual Lighting Procedure.

Shutting Off Heater

1. Turncontrolknobclockwise

Clockwise

to the OFF position.

2. Turn off all electric power to the ap-

pliance if service is to be performed.

Shutting Off Burner Only (pilot

stays lit)

1. Turncontrolknobclockwise

Clockwise

to the PILOT position.

THERMOSTAT

CONTROL

OPERATION

Thethermostaticcontrolusedonthesemod-

els differs from standard thermostats. Stan-

dard thermostats simply turn on and off the

burner. The thermostat used on this heater

senses the room temperature. The thermo-

stat adjusts the amount of gas flow to the

burner.Thisincreasesordecreasestheburner

flameheight.Attimestheroommayexceed

the set temperature. If so, the burner will

shutoff.Theburnerwillcyclebackonwhen

room temperature drops below the set tem-

perature. The control knob can be set to any

heatlevelbetweenHIandLO.Selectingthe

HI setting will cause the burner to remain

fully on without modulating down in most

cases.

Note:

The thermostat sensing bulb mea-

sures the temperature of air near the heater

cabinet. This may not always agree with

room temperature (depending on housing

construction,installationlocation,roomsize,

openairtemperatures,etc.).Frequentuseof

yourheaterwillletyou determine yourown

comfort levels.

MANUAL

LIGHTING

PROCEDURE

102392

OWNER’S MANUAL

INSPECTING

BURNER

Check pilot flame pattern and burner flame

pattern often.

PILOT FLAME PATTERN

Figure 17 shows a correct pilot flame pat-

tern. Figure 18 shows an incorrect pilot

flame pattern. The incorrect pilot flame is

not touching the thermocouple. This will

cause the thermocouple to cool. When the

thermocouple cools, the heater will shut

down.

If pilot flame pattern is incorrect, as shown

in Figure 18

• turn heater off (see To Turn Off Gas

to Appliance, page 10)

• see Troubleshooting, pages 12

through 14

Thermocouple

GRH/OV 009GOOD PILOT

Thermocouple

Pilot Burner

GRH/OV 008BAD PILOT/LP

Pilot Burner

Figure 17 - Correct Pilot Flame Pattern

Figure 18 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 19 shows a correct burner flame

pattern.Figure20showsanincorrectburner

flame pattern. The incorrect burner flame

patternshowsyellowtippingoftheflame.It

also shows the flame higher than 1/2 the

glass panel height.

WARNING: If yellow tipping

occurs, your heater could pro-

duce increased levels of carbon

monoxide. If burner flame pat-

ternshowsyellowtipping,follow

instructions at bottom of this

page.

NOTICE: Do not mistake orange

flames with yellow tipping. Dust

or other fine particles enter the

heater and burn causing brief

patches of orange flame.

CLEANING AND

MAINTENANCE

ODS/PILOT AND BURNER

ORIFICE

• Use a vacuum cleaner, pressurized

air, or small, soft bristled brush to

clean.

CABINET

Air Passageways

• Use a vacuum cleaner or pressurized

air to clean.

Exterior

• Use a soft cloth dampened with a

mild soap and water mixture. Wipe

the cabinet to remove dust.

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep

control areas, burner, and circu-

lating air passageways of heater

clean. Inspect these areas of

heater before each use. Have

heaterinspectedyearlybyaquali-

fied service person. Heater may

needmorefrequentcleaningdue

to excessive lint from carpeting,

bedding material, etc.

1/2 GLASS HEIGHT

INCORRECT FLAME PATTERN

AT HIGH POSITION

Figure 19 - Correct Burner Flame Pattern

Figure20-IncorrectBurnerFlamePattern

Yellow

Tipping

CORRECT FLAME PATTERN

AT HIGH POSITION

1/2 GLASS HEIGHT

Ifburnerflamepatternisincorrect,asshown

in Figure 20

• turn heater off (see To Turn Off Gas

to Appliance, page 10)

• see Troubleshooting, pages 12

through 14

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

TROUBLESHOOTING

Note:

Alltroubleshootingitemsarelisted

in order of operation.

WARNING: Turn off heater

andletcoolbeforeservicing.Only

aqualifiedservicepersonshould

service and repair heater.

POSSIBLE CAUSE

1. Ignitor electrode positioned wrong

2. Ignitor electrode broken

3. Ignitor electrode not connected to igni-

tor cable

4. Ignitor cable pinched or wet

5. Piezo ignitor nut is loose

6. Broken ignitor cable

7. Bad piezo ignitor

1. Gas supply turned off or manual shutoff

valve closed

2. Control knob not in PILOT position

3. Control knob not pressed in while in PI-

LOT position

4. Air in gas lines when installed

5. ODS/pilot is clogged

6. Gas regulator setting is not correct

1. Control knob not fully pressed in

2. Control knob notpressed in long enough

3. Safety interlock system has been trig-

gered

4. Manual shutoff valve not fully open

5. Thermocouple connection loose at con-

trol valve

6. Pilot flame not touching thermocouple,

which allows thermocouple to cool,

causing pilot flame to go out. This prob-

lem could be caused by one or both of

the following:

A) Low gas pressure

B) Dirty or partially clogged ODS/

pilot

7. Thermocouple damaged

8. Control valve damaged

REMEDY

1. Replace ignitor

2. Replace ignitor

3. Reconnect ignitor cable

4. Free ignitor cable if pinched by any

metal or tubing. Keep ignitor cable dry

5. Tighten nut holding piezo ignitor to

heater cabinet. Nut is located inside

heater cabinet at top

6. Replace ignitor cable

7. Replace piezo ignitor

1. Turn on gas supply or open manual

shutoff valve

2. Turn control knob to PILOT position

3. Press in control knob while in PILOT

position

4. Continue holding down control knob.

Repeat igniting operation until air is re-

moved

5. Clean ODS/pilot (see Cleaning and

Maintenance, page 11) or replace ODS/

pilot assembly

6. Replace gas regulator

1. Press in control knob fully

2. After ODS/pilot lights, keep control

knob pressed in 30 seconds

3. Waitoneminute for safety interlock sys-

tem to reset. Repeat ignition operation.

4. Fully open manual shut-off valve

Hand tighten until snug, then tighten 1/4

turn more

6. A) Contact local natural gas company

B) Clean ODS/pilot (see Cleaning and

Maintenance, page 11) or replace ODS/

pilot assembly

7. Replace thermocouple

8. Replace control valve

OBSERVED PROBLEM

When ignitor button is pressed, there is no

spark at ODS/pilot

When ignitor button is pressed, there is

spark at ODS/pilot but no ignition

ODS/pilot lights but flame goes out when

control knob is released

CAUTION: Never use a wire,

needle, or similar object to clean

ODS/pilot.ThiscandamageODS/

pilot unit.

Continued

102392

OWNER’S MANUAL

TROUBLESHOOTING

Continued

OBSERVED PROBLEM

Burner does not light after ODS/pilot is lit

Delayed ignition of burner

Burner backfiring during combustion

Yellow flame during burner combustion

Slight smoke or odor during initial opera-

tion

Heater produces a whistling noise when

burner is lit

REMEDY

1. Clean burner orifice (see Cleaning and

Maintenance, page 11) or replace burner

orifice

2. Replace burner orifice

3. Contact local natural gas company

1. Contact local natural gas company

2. Clean burner orifice (see Cleaning and

Maintenance, page 11)or replace burner

orifice

1. Clean burner orifice (see Cleaning and

Maintenance, page 11)or replace burner

orifice

2. Contact local natural gas company

3. Replace burner

4. Replace gas regulator

1. Check burner for dirt and debris. If

found, clean burner (see Cleaning and

Maintenance, page 11)

2. Contact local natural gas company

3. Replace gas regulator

1. Problem will stop after a few hours of

operation

1. Turn control knob to LO position and

let warm up for a minute

2. Operate burner until air is removed from

line. Have gas checked by local natural

gas company

3. Observe minimum installation clear-

ances (see Figure 4, page 6)

4. Clean burner (see Cleaning and Main-

tenance, page 11) or replace burner ori-

fice

POSSIBLE CAUSE

1. Burner orifice is clogged

2. Burner orifice diameter is too small

3. Inlet gas pressure is too low

1. Manifold pressure is too low

2. Burner orifice is clogged

1. Burner orifice is clogged or damaged

2. Inlet gas pressure is too low

3. Burner damaged

4. Gas regulator defective

1. Not enough air

2. Inlet gas pressure is too low

3. Gas regulator defective

1. Residues from manufacturing processes

1. Turning control knob to HI position

when burner is cold

2. Air in gas line

3. Air passageways on heater blocked

4. Dirty or partially clogged burner orifice

Continued

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

TROUBLESHOOTING

Continued

WARNING: If you smell gas

• Shut off gas supply.

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your

building.

• Immediatelycallyourgassupplierfromaneighbor’sphone.Followthe

gas supplier’s instructions.

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

IMPORTANT:

Operating heater where impurities in air exist may create odors. Cleaning

supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles,

etc., create fumes. These fumes may mix with combustion air and create odors.

POSSIBLE CAUSE

1. Metal expanding while heating or con-

tracting while cooling

1. Heater burning vapors from paint, hair

spray, glues, etc. See

IMPORTANT

statement above.

2. Gas leak. See Warning statement at

top of page

1. Not enough fresh air is available

2. Low line pressure

3. ODS/pilot is partially clogged

1. Gas leak. See Warning statement at

top of page

2. Control valve defective

1. Foreign matter between control valve

and burner

2. Gas leak. See Warning statement at

top of page

1. Not enough combustion/ventilation air

OBSERVED PROBLEM

Heater produces a clicking/ticking noise

just after burner is lit or shut off

Heater produces unwanted odors

Heater shuts off in use (ODS operates)

Gas odor even when control knob is in OFF

position

Gas odor during combustion

Moisture/condensationnoticedonwindows

REMEDY

1. This is common with most heaters. If

noise is excessive, contact qualified ser-

vice person

1. Ventilate room. Stop using odor-causing

products while heater is running

2. Locate and correct all leaks (see Check-

ing Gas Connections, page 9)

1. Open window and/or door for ventila-

tion

2. Contact local natural gas company

3. Clean ODS/pilot (see Cleaning and

Maintenance, page 11)

1. Locate and correct all leaks (see Check-

ing Gas Connections, page 9)

2. Replace control valve

1. Take apart gas tubing and remove for-

eign matter

2. Locate and correct all leaks (see Check-

ing Gas Connections, page 9)

1. Refer to Air for Combustion and Venti-

lation requirements (page 3)

102392

OWNER’S MANUAL

You may have further questions about in-

stallation, operation, or troubleshooting.

Ifso,contact DESAInternational’sTechni-

calServiceDepartmentat1-800-323-5190.

TECHNICAL

SERVICE

SPECIFICATIONS

VN1000BT

Btu(Variable) 5,000/10,000

Type Gas Natural Only

Ignition Piezo

Pressure Regulator Setting 3" W.C.

Inlet Gas Pressure

(inches of water) 10.5" Max. / 4" Min.

Heater Dimensions

(Includes knobs and grill) 21.5" (H) x 13.5" (W) x 7" (D)

Shipping Weight (pounds) 19

When gas pressure is too low

• pilot will not stay lit

• burner will have delayed ignition

• heater will not produce specified heat

When gas quality is bad

• pilot will not stay lit

• burner will produce flames and soot

• heater will backfire when lit

Youmayfeelyourgaspressureistoolowor

gas quality is bad. If so, contact your local

natural gas supplier.

SERVICE HINTS

Note:

Use only original replacement parts.

Thiswillprotectyourwarrantycoveragefor

parts replaced under warranty.

Parts Under Warranty

Contact authorized dealer from whom you

purchased this product. If they cannot sup-

plyoriginalreplacementpart(s),callDESA

International’s Technical Service Depart-

ment at 1-800-323-5190 for referral infor-

mation. When contacting your dealer or

DESA International, have ready:

• your name and address

• model number of your heater

• how heater was malfunctioning

• typeof gasused (propane/LP ornatu-

ral gas)

• purchase date

Usually,wewillaskyoutoreturnthedefec-

tive part to the factory.

Parts Not Under Warranty

Contact authorized dealers of this product.

If they cannot supply original replacement

part(s), call DESA International’s Parts

Department at 1-800-972-7879 for referral

information. When calling DESA Interna-

tional, have ready:

• model number of your heater

• the replacement part number

REPLACEMENT

PARTS

ACCESSORY

Purchase this heater accessory from your

local dealer. If they cannot supply this ac-

cessory, call DESA International’s Parts

Department at 1-800-972-7879 for referral

information. You can also write to the ad-

dresslistedonthebackpageofthismanual.

MANUAL SHUTOFF

VALVE - GA5010

Manual shutoff valve

with 1/8" NPT tap.

SERVICE

PUBLICATIONS

Youcanpurchaseaservicemanualfromthe

address listed on the back page of this

manual. Send a check for $5.00 payable to

DESA International.

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

12-2

12-1

ODS/PILOT

ILLUSTRATED

PARTS

BREAKDOWN

23 24

VN1000BT

102392

OWNER’S MANUAL

PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions

listed under Replacement Parts on page 15 of this manual.

KEY PART

NO. NUMBER DESCRIPTION QTY.

1 098304-01 Screw, #10 x 3/8" 2

2 099467-03 Front Panel Assembly (VN1000BT) 1

099467-04 Front Panel Assembly (CFN1000BT) 1

3 099318-04 Grill Guard 1

4 101108-01 Grill Guard Clip 2

5 102018-01AA Bottom Glass Retainer 1

6 098260-03 Glass Panel 1

7 098532-03AA Top Glass Retainer 1

8 M11084-38 Screw, #8 x 3/8" 8

9 098352-03BR Deflector Unit 1

10 098271-03 Ignitor Cable 1

11 098249-01 Nut, M5 2

12 100701-03 ODS/Pilot Assembly 1

12-1 098514-01 Thermocouple 1

12-2 098594-01 Ignitor Electrode 1

13 099386-02 Burner 1

14 099387-11 Pilot Tubing 1

15 098251-03 Injector 1

16 099463-01 Injector Holder 1

17 099415-01 Pressure Regulator 1

18 102863-01 Burner Tubing 1

19 102864-01 Regulator Tubing 1

20 102492-01 5/16" Male Connector 1

21 102493-01 1/4" Male Connector 1

22 098522-07 Thermostat Gas Valve 1

23 102571-01 Cabinet 1

24 102445-01 Piezo Ignitor 1

25 098275-01 3/8" NPT Male Plug 2

26 099553-01 Pilot Shield 1

27 098303-02 Screw, #6 x 5/16" 2

PARTS AVAILABLE - NOT SHOWN

102471-01 Control Position Label 1

100642-02 Assembly, Hardware 1

MODEL: VN1000BT

102392

NATURAL GAS HEATER

BLUE FLAME 10,000 BTU

NOTES

_______________________________________________________________________________________________

102392

OWNER’S MANUAL

NOTES

_______________________________________________________________________________________________

KEEP THIS WARRANTY

Model

Serial No.

Date Purchased

Always specify model and serial numbers when communicating with the factory.

We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our

standard written warranty. We make no other warranty, expressed or implied.

WARRANTY INFORMATION

102392-01

REV. D

7/97

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

LIMITED WARRANTY

VENT-FREE RESIDENTIAL GAS HEATERS

DESAInternationalwarrantsthisproducttobefreefromdefectsinmaterialsandcomponentsforthree(3)yearsand

five (5) years on stainless steel burners from the date of first purchase, provided that the product has been properly

installed, operated and maintained in accordance with all applicable instructions. To make a claim under this

warranty the Bill of Sale or cancelled check must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to

restore this heater to proper operating condition and an allowance for labor when provided by a DESA Authorized

Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA

International who will provide original factory replacement parts. Failure to use original factory replacement parts

voids this warranty. The heater MUST be installed by a qualified installer in accordance with all local codes and

instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that

fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper

installation. Travel, diagnostic cost, labor, transportation and any and all such other costs related to repairing a

defective heater will be the responsibility of the owner.

TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE

OF THE PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED

WARRANTIESAND LIMITS THE DURATIONOF ANY AND ALLIMPLIED WARRANTIES, INCLUDING

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO THREE (3)

YEARS ON ALL COMPONENTS AND FIVE (5) YEARS ON STAINLESS STEEL BURNERS FROM THE

DATEOFFIRSTPURCHASE;AND DESA INTERNATIONAL’SLIABILITYISHEREBYLIMITEDTOTHE

PURCHASEPRICEOF THEPRODUCTANDDESAINTERNATIONALSHALLNOTBELIABLEFORANY

OTHERDAMAGESWHATSOEVERINCLUDINGINDIRECT,INCIDENTALORCONSEQUENTIALDAM-

AGES.

Somestatesdonotallowalimitationonhowlonganimpliedwarrantylastsoranexclusionorlimitationofincidental

orconsequentialdamages,sotheabovelimitationonimplied warranties,orexclusionorlimitationondamagesmay

not apply to you.

This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.

For information about this warranty write:

This manual suits for next models

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