Williams 0696542, 1096542 Owner's Operation And Installation Manual

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INFRARED VENT-FREE

NATURAL GAS

SPACE HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Do not store, or use gasoline or other ammable
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.
 Im m ediatel y call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
 If you cannot reach your gas supplier, call
the re department.

Installation and service must be performed by a

Model # 0696542, 1096542

qua l i fied in s ta ller , se r v ice ag e n cy or gas
supplier.

Table of Contents

Important Safety Information......................................2

Product Features......................................................3

Proper Ventilation & Fresh Air...................................4

Installation.................................................................6

Operating Your Heater.............................................10

Cleaning & Maintenance.........................................12

Troubleshooting.......................................................13

Specications..........................................................16

Parts List..................................................................17

WARNING: If the information in this
manual is not followed exactly, a  re o r
ex pl os io n m ay r e su lt causing property
damage, personal injury, or loss of life.

WAR N ING: This is an unvented gas­red heater. It uses air (oxygen) fr o m
t h e ro o m in wh i c h it is install ed.
Pr ovisions for ad e quate combustion and
ventilation air must be pr ov i d e d. Re f e r
t o Ai r F or Combustion and Ventilation
section on page 4 of this manual.

WARNING: Improper installation, adjust­ment, alteration, service or maintenance can
cause injury or property damage. Refer to this
manual for correct installation and operational
procedures. For assistance or additional
information consult a qualied installer, service
agency, or gas supplier.

This appliance may be installed in an after­market* permanently located, manufactured
(mobile) home, where not prohibited by lo­cal codes.
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.

WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM
HEATERS
Water vapor is a by-product of gas combustion.An un­vented room heater productes approximately one (1)
ounce (30ml) of water for every 1,000 BTU’s (.3KW’s) of
gas input per hour. Refer to page 3.

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

Williams Furnace Company
250 West Laurel Street
Colton, California 92324

the consumer.

Consumer: Please retain these instructions for
future use.

Installer: Please leave these instructions with

WILLIAMS FURNACE PHONE NUMBER: 909-825-0993

http://www.wfc-fc.com

Printed in China WS-ML062-13-1206

IMPORTANT
SAFETY INFORMATION

WARNINGS

I M P ORTAN T : Read this

ow ner ’s m anual care fully and
co mp l et e ly be fo r e tr y in g t o
assem b l e , o p e ra te , or serv i c e
this heate r. Impro p e r us e of
this heater can cause serious
injury or death fr o m burns,
f i re , e xp l o si o n , e l e c t r ic a l
sh o c k , and ca r b o n monoxide
poisoning.

WARNING: Do not use any

acces s o r y no t appr o v e d for
use with this heater.

WARNING: Any change to

this heater or its controls can
be dangerous.

Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.

Due to high temperatures, heater
s h o ul d b e k e p t o u t o f
traffic and away from furniture
and draperies.

Sur f ace o f hea t e r b e c ome s
very hot when running heater.
Keep children and adults away
from hot surface to avoid burns
or clothing ignition. Heater will
remain hot for a time after shut
down. Al l ow surf a c e to co o l
before touching.

C a r e fu l l y s u pe r v i s e y o u n g
children when they are in the
same room with heater.

Ma k e sure grill guard is in
place before running heater.

State of Massachusetts: The in-

stallation must be made by a licensed
plumber or gas tter in the Common­wealth of Massachusetts.

Sellers of unvented propane or natural
gas-red supplemental room heaters
shall provide to each purchaser a

copy of 527 CMR 30 upon sale of
the unit.

In the state of Massachusetts, un­vented propane or nature gas-red
space heaters shall be prohibited in

bedrooms and bathrooms.

Keep the appliance area clear
an d fr e e fr o m co m bu s ti b le
materi a l s , ga s o l i ne , and ot he r
flammabl e vapo rs and liqu ids.

WARNING

Models 0696542, 1096542 are
equipped for natural gas. Field conver­sion is not permitted.

1. 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.

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
building.
 Immediately call your gas sup
plier from a neighbor’s phone.
Follow the gas supplier’s
instructions.
 If you cannot reach your gas
supplier, call the re
department.

3. Do not install models 0696542
1096542 in a bathroom.

4. This heater needs fresh,
outside air ventilation to run
properly. This heater has an
Oxygen Depletion Sensor
(ODS) safety shutoff system.
The ODS shuts down the
heater if not enough fresh air
is available. See Fresh Air For

Combustion And Ventilation

pages 4 through 6

5. Keep all air openings in the
front and bottom of heater
clear and free of debris. This
will insure enough air for
proper combustion

6. If heater shuts off, do not
relight until you provide fresh,
outside air. If heater keeps
shutting off, have it serviced.

7. Do not operate heater
 where ammable liquids or va
pors are used or stored
 under dusty conditions

8. Turn heater off before using
furniture polish, wax, carpet

2

cleaner, or similar products. If
heated, the vapors from these
products may create a white
powder residue within burner
box or on adjacent walls or
furniture.

9. Always run heater with control
knob at ON, LOW or HIGH
locked positions. Never set
control knob between locked
positions. Poor combustion
and higher levels of carbon
monoxide may result.

10. Do not use heater if any part
has been under water.
Immediately call a qualied
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.

11. Turn off heater and let cool
before servicing. Only a qualied
service person should service
and repair heater.

12. Operating heater above
elevations of 4,500 feet could
cause pilot outage.

DANGER: Carbon monoxide

poisoning may lead to death!

Carbon Monoxide Poisoning.

Early signs of carbon monoxide
poiso ning rese mble the flu with
headaches, dizz iness, 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
ot hers. The se i nclud e pregn ant
women, persons with heart or lung
disease or anemia, those under
the inuence of alcohol, and those
at high altitudes.
Na tural Ga s: Natura l gas i s
odorless. An odor-making agent is
added to natural gas. The odor
helps you detect a natural gas
leak. However, the odor added to
natural gas can fade. Natural gas
may be present even though 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.

PRODUCT FEATURES

Figure1-Vent-Free Natural Gas Heater

SAFETY DEVICE

A standard requirement for all vent-free room
heaters, this heater has a pilot with an Oxygen
Depletion Sensor(ODS) safety shutoff system.
The ODS/pilot shuts off the heater if there is
not enough fresh air.

PIEZO IGNITION SYSTEM

This heater is equipped with a piezo ignitor.
This system requires no matches, batteries, or
other sources to light heater.

THERMOSTATIC HEAT
CONTROL ON THERMOSTAT
MODELS

These heaters have a control valve with a
thermostat sensing bulb. This results in the
greatest heater comfort and may result in
lower gas bills.

WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS

Water vapor is a by-product of gas combustion. An
unvented room heater produces approximately one (1)
ounce (30ml) of water for every 1,000 BTU’s (.3KW’s) of
gas input per hour.
Unvented room heaters are recommended as supplemental
heat (a room) rather than a primary heat source (an entire
house). In most supplemental heat applications, the water
vapor does not create a problem. In most applications,
the water vapor enhances the low humidity atmosphere
experience during cold weather.

LOCAL CODES

Install and use heater with care. Follow all local
codes. In the absence of local codes, use the
latest edition of National Fuel Gas Code ANSZ223.1,
also known as NFPA 54*.
*Available from :
American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

UNPACKING

1. Remove heater from carton.

2. Remove all protective packaging applied to
heater for shipment.

3. Check heater for any shipping damage. If heater
is damaged, promptly inform dealer where you
bought heater.

The following steps will help insure that water vapor
does not become a problem.

1. Be sure th e heater is sized properly for the
application, including ample combusion air and
circulation air.

2. If high humidity is experienced, a dehumidier may
be used to help lower the water vapor content of the air.

3. Do not use an unvented room heater as the primary
heat source.

3

FRESH AIR FOR
COMBUSTION AND

VENTILATION

WARN I N G : If the ar e a in
which the heater may be operated
do e s no t m ee t t he r e qu i re d
volume for indoor combustion air,
co m b ustion and ventilati o n air
shall be provided by one of the
methods described in the National
F u e l G a s C o d e , A N S I
Z 2 2 3 . 1 / N F P A 5 4 , t h e
International Fuel Gas Code, or
a p p l i c a b l e l o c a l c o d e s .

PROVIDING ADEQUATE

VENTILATION

All spaces in homes fall into one of
the three following ventilation clas­sications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space
The information on pages 4
through 6 will help you classify
your space and provide adequate
ventilation.

Unusually 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
dened as construction where:

a. walls and ceilings exposed to
the outside atmosphere have a
continuous water vapor retarder
with a rating of one perm (6×10
kg per pa-sec-m2) or less with
openings gasketed or sealed and
b. weather stripping has been
added on open able win dows and
doors and
c. caulking or sealants are applied to
areas such as joints around win­dow and door frames, between sole
plates and oors, between wall­ceiling joints, between wall panels, at
penetrations for plumbing, 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,
pages 5 and 6. If your home does

not meet all of the three criteria
above, see Determining Fresh-Air

Flow for Heater Location, page 4, 5.

-11

Conned and
Unconned Space

Conned space is a space whose
volume is less than 50 cubic feet
per 1,000 Btu per hour (4.8 m3 per
kw) of the aggregate input rating
of all appliances installed in that
space and an unconned 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 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 wit h
doors, are considered a part of
the unconned space.
This heater shall not be in­stalled in a conned space or
unusually tight construction unless
pr ovisi ons are pr ovide d for
adequate combustion and
ventilation air.

* A d j oi n i n g r o om s a r e

communicating only if there
are doorless passageways or
ventilation grills between them.

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if you Have a Conned or Unconned Space*

Use this worksheet to determine if you have a conned or unconned 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×width×height).
Length×Width×Height= cu.ft. (volume of space)
Example: Space size18ft.(length)×16ft.( width)×8ft. (ceiling height)=23040cu. 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: 2304 cu. ft. (volume of space)÷50 cu.ft.=46.1 or 46.100(maximum Btu/Hr the space can support)

WARNING: If the area in which the heater may be operated is smaller than that dened as an
unconned space or if the building is of unusually tight construction, provide adequate combustion and
ventilation air by one of the methods described in the National Fuel Gas Coda, ANS Z223.1, Section 5.3
or applicable local codes.

4

3. Add the Btu/Hr of all fuel burning appliances 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

*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 : 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ned 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 unconned
space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From
Inside Building, page 5.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconned.

If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an
unconned space. You will need no additional fresh air ventilation.

Example:
Gas water heater 40,000 Btu/Hr
Vent free heater + 10,000 Btu/Hr
total = 50,000 Btu/Hr

AIR FOR COMBUSTION AND
VENTILATION

Continued

VENTILATION AIR

Ventilation Air From Inside Building :
This fresh air would come from an
adjoining unconfined space. When
ventilating to an adjoining unconned
space, you must provide two permanent
openings: one within 12” of the ceiling
and one within 12” of the oor on the
wall connecting the two spaces (see
options 1 and 2, Figure 2). You can
also remove door into adjoining room
(see option 3, Figure 2). Follow the Na-

tional Fuel Gas Code NFPA 54/ANS
Z223.1. Section 5.3, Air for Combus­tion and Ventilation for required size of

ventilation grills or ducts

WARNING: Rework worksheet ,
adding the space of the adjoining
unconned space. The combined spaces
must have enough fresh air to supply all
appliances in both spaces.

Figure 2 -Ventilation Air from Inside Building

5

VENTILATION AIR

Figure 3 -Ventilation Air from Outdoors

Ventilation Air From Outdoors

Pr o vide extr a fresh ai r by usi n g venti ­lation gril l s or duct s : You mus t pro ­vi d e t w o p e rm a n en t op e nin g s: o ne
within 12” of the ceiling and one within
12” of the oor.
Connect these items directly to the
outdoors or spaces open to the outdoors.
Th ese spa ces inc lude attics and cra w l
spaces. Follow the National Fuel Gas

Code NFPA 54/ANS Z223.1, Section 5.3.
Air for Combustion and 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-controlled power vent.
Heated air entering the attic will activate
the power vent.

INSTALLATION

NOTICE: This heater is

intended for use as supplemental
heat. Use this heater along with
your primary heating system.
Do not install this heater as
your primary heat source. If you
have a central heating system,
you may run system’s circulat­ing blower while using heater.
This will help circulate the heat
throughout the house. In the
event of a power outage, you can
use this heater as your primary
heat source.

WARNING: A qualied
service person must install
heater. Follow all local codes.

CHECK GAS TYPE

Us e o nly natur al g as. If yo ur
gas supply is not natural, do
no t instal l heate r. Cal l dealer
wh e re yo u bo ught h e a ter f o r
proper type heater.

INSTALLATION NEEDS

Before installing heater, make sure
you have the items listed below.

 piping (check local codes)
 sealant (resistant to natural

gas)

 equipment shutoff valve*
 ground joint union
 test gauge connection*
 sediment trap
 tee joint
 pipe wrench

*A CSA/ A G A design- c e r t i fi e d
equipment shu toff val ve with
1/8” NPT tap is an accept­able alternative to test
gauge connection. Purchase the
optional CSA/AGA design certied
equipment shutoff valve from your

dealer. See Accessories, page 17.

LOCATING HEATER

This heater is designed to be
mounted on a wall.
For convenience and efficiency,
install heater
 where there is easy access for
operation, inspection, and
service.
 in coldest part of room.

CAUTION: If you install the
heater in a home garage
 heater pilot and burner must
be at least 18 inches above
oor.
 locate heater where moving
vehicle will not hit it.

WARNING: Never install
the heater

 in a bathroom
 in a recreational vehicle.
 where curtains, furniture,

clothing, or other ammable
objects are less than 36 inches
from the front, top, or sides
of the heater.

 as a replace insert.
 in high trafc areas.

 in windy or drafty areas.

CAUTION: This heater creates
warm air currents. These currents
move heat to wall surfaces
next to heater. Installing heater
next to vinyl or cloth wall cover­ings or operating heater where
impurities (such as tobacco smoke,
aromatic candles, cleaning uids,
oil or kerosene lamps, etc.) in the
air exist may discolor walls.

6

INSTALLATION

WA R NI N G: Ma i nt a in t h e

min i mu m cl e ar anc e s sho w n
i n F ig u r e 4 . I f yo u c a n,
provide greater clearances from
oor, ceiling, and joining wall.

Figure 4 -Mounting Clearances
As Viewed From Front Of Heater

FASTENING HEATER TO WALL
Mounting Bracket

The mounting bracket is located
on back panel of heater (see
Figure 5). It has been taped there
for shipp i n g . R e m o ve m o u n ti ng
bracket from back panel.

Removing Lower Front Panel Of
Heater

1. Remove two screws near
bottom corners of lower front
panel.

2. Pull bottom of lower front panel
forward, then down (see Figure

6).

Figure 6 - Removing Lower Front
Panel Of Heater

Methods For Attaching Mounting
Bracket To Wall

Only use last hole on each end
of mou nti ng bracket to attach
bracket to wall. Attach mounting
bracket to wall only in one of two ways:

1. Attaching to wall stud

2. Attaching to wall anchor
Attaching to Wall Stud: This method
provides the strongest hold. Insert
mounting screws through mount­ing bracket and into wall studs.

Attaching to Wall Anchor: This
method al l o w s you to attach
mounting bracket to hollow walls
(wall areas between studs) or to
solid walls (concrete or masonry).
Decide which method better
suits your needs. Either method
will provide a secure hold for the
mounting bracket.

Marking Screw Locations

1. Tape mounting bracket to wall
where heate r w ill be locat ed.
Make sure mounting bracket is
level.

WARNING: Maintain
minimum clearances shown in
Figure 8. If you can, provide
greater clearances from oor
and joining wall.

2. Mark screw locat i o n s on
wall. (see Figure 7)
Note: Only mark last hole on
each end of mounting bracket.
Insert mounting screws through
these holes only.

3. Remove tape and mounting
bracket from wall.

Figure 5 -Mounting Bracket
Location

Figure 7 - Mounting Bracket
Clearances

7