Comfort Glow CGN10TLA, CGN10TA Owner's Operation And Installation Manual

®

VENT-FREE NATURAL GAS HEATER

OWNER'S OPERATION AND INSTALLATION MANUAL

CGN10TA

CG N 10TLA

7

J

WARNING: If the information in this manual is not
followed exactly, a fire or exploston may result caus-

ing property damage, personal injury, or loss of life.
m 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 in-

structions.

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

Installation and service must be performed by a

qualified installer, service agency, orthe gas supplier.

WARNING: Improper installa-
tion, adjustment, alteration, ser-

vice, or maintenance can cause

Injury or property damage. Re-

fer to this manual for correct

installation and operational pro-
cedures. For assistance or addi-

tional information consult a

qualified installer, service
agency, or the gas supplier.

WARNING: This is an unvented

gas-fired heater. It uses air(oxy-
gen) from the room inwhich it is
installed, Provisions for ad-

equate combustion and ventila-
tion air must be provided.

to Air for Combustion and

tilationon

This appliance may be installed In an aftermarket* manufactured (mobile) home, where not

prohibited bystate or local codes.

*Aftarmarket: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 stied)

This appliance Is only for use with the type of gas Indicated on the rating plate.
Tills appliance is not convertible for use with other gases,

CGNIOTA and CGNIOTLA

VENT-FREE NATURAL GAS HEATER

SAFETY
INFORMATION

_k 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

cause serious injury or death from
burns, fire, explosion, and car-

bon monoxide poisoning.

DANGER: Carbon monoxide

poisoning may lead to death!

2.

3.

4.

Carbon Monoxide Poisoning: Early
signs of carbon monoxide poisoning re-

semble the flu, with headaches, dizziness, 5.
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-
ease or anemia, those under the influence of 6.
alcohol, and those at high altitudes.

Natural Gas: Natural gas is 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 gasmay 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.

_WARNING: Anychangetothis

heater or its controls can be
dangerous.

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.

If you smell gas

• shut offgas 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 supplier
from a neighbor's phone. Follow the

gas supplier's instructions

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

Heater shall not be installed in a
bathroom.

Never install the heater

• in a recreational vehicle

• where curtains, furniture, clothing, or
other flammable objects are less than
36 inches from the front, top, or sides

of the heater

• as a fireplace insert

• in high traffic areas

• in windy or drafty areas

This heater needs fresh, outside air ven-
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 4 through 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
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 shutdown.

Allow surface to cool before touching.

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.

2 I0d_67

OWNER'S MANUAL

PRODUCT
IDENTIFICATION

ignitorButton

Control Knob

Grill

Guard

Glass

Panel

PRODUCT
FEATURES

Safety Device

This heater has a pilot with an Oxygen
Depletion Sensor Shutoff System (ODS).
The ODS/pilot is arequired feature for vent-

free room heaters. The ODS/pilot shuts off
the heater if there is not enough fresh air.

Piezo Ignition System

This heaterhas a piezo ignitor. This system

requires no matches, batteries, or other
sources to light heater.

Thermostatic Heat Control

This heater has a thermostat sensing bulb
and thermostat control. This results in the

greatest heater comfort. This can also result
in lower gas bills.

Front
Panel

IIIIIIIIIIIIIIIIIIIIi

Cabinet

Figure 1 - Vent-Free Natural Gas Heater

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 Gas

Code ANSI Z223.1 also known as NFPA 54".
*Available from:

American Nadonal 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 ap-
plied to heater for shipment.

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

Io_7 3

CGNIOTA and CGNIOTLA

VENT-FREE NATURAL GAS HEATER

AIR FOR

COMBUSTION AND
VENTILATION

_k WARNING: This heater shall
not be installed in a confined

space unless provisions are pro-
vided for adequate combustion

and ventilatlon air. Read the fol-
lowing instructions to insure

proper fresh air for this and other
fuel-burning appliances in your

home.

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

insulation, and new conslz_ction methods
helpreduce heatloss in homes. Home owners

weatherstrip andcaulk around windows and
doors to keep the cold air out and the warm ah"

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

While itis good to make your home energy
efficient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning
appliances need flesh air for proper com-

bustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and

fuel burning appliances draw air from the b.
house to operate. You must provide ad-

equate flesh air for these appliances. This
wifi insure proper venting of vented fuel-

burning appliances, c.

PROVIDING ADEQUATE
VENTILATION

The following is exespts from National Fuel

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

5.3, Airfor Combustion and Ventilation.

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

I. Unusually Tight Contruction

2. Unconfined Space

3. Confined 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 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 de-

fined as construction where:
a. walls and ceilings exposed to the

outside atmosphere have a con-
tinuous water vapor retarder with

a rating of one perm (6 x 10"11kg

per pa-sec-n_ or less with open-
ings gasketed or sealed and

weather stripping has been

added on openable windows and
doors and

caulldng or eaalanta are applied
to areas such as joints around

window and door frames, be-
tween sole plates and floors, be-

tween wall-ceiling joints, be-
tween wall panels, at penetra-

tions for plumbing, electrical, and

gas lines, end at other openings.

If your home meets all of the three
crifeds above, you must provide ed-

difional fresh air. See Ventilation Air
From Outdoors, page 6.

If your home does not meet all of the

three cdteda above, proceed to Deter-

mining Fresh-Air flow for Heater Lo-
cation on page 5.

Confined and Unconfined
Spaces

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 1000 Btu per hour (4.8 cubic
meters per kw) of the aggregate input rating

of nil appliances installed in that space and
an unconfined space as a space whose vol-
ume is not less than 50 cubic feet per 1000

Btu perhour (4.8 cubic meters per kw) ofthe
aggregate input rating of all appliances in-

stalled in that space. Rooms communicating
directly with the space in which the appli-
anees are installed*, through openings not

furnished with doors, are considered a part

of the unconfined space.
This heater shall not be installed in a con-

fined space or unusually tight construction
unless provisions are provided for adequate

combustion and ventilation air.
*Adjoining rooms are communicating only

ffthere are doorless passageways or ventila-
tion grills between them.

4 1o¢f117

OWNER'S MANUAL

AIR FOR
COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Determining if You Have a Confined or Unconfined Space

Use this worksheet to determine if you have a confined orunconfined 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 = eu. 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 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/I-Ir 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)

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

Vent-free heater Btu/Hr

Gas water heater* Btu/Hr Example:
Gas furnace Btu/Hr Gas water heater 40,000 Btu/Hr
Vented gas heater Btu/Hr Vent-free heater + 10,000 Btu/Hr
Gas fireplace logs Btu/Hr Total = 50,000 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 confined space because the actual Btu/Hr used is more than the maximum Btu/I-Irthe 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 6.

B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 6.
C. Install a lower Btu/Hr heater, if lower Btu/I-Ir 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.

_k WARNING: If the area in which the heater may be operated Issmaller than that deftned as an unconfined space,

I pr_v_deadequ_te__mbusti_n_ndventi_ati_nairby_ne_fthemeth_dsdescribedintheNati_na_Fue_GasC_de_
L ANSl Z223.1, 1992, Section 5.3 or applicable local codes.

Continued

1_"*r 5

CGNIOTA and CGNIOTLA

VENT-FREE NATURAL GAS HEATER

AIR FOR
COMBUSTION AND

VENTILATION

Contmued

VENTILATION AIR
Ventilation Air From Inside

Building

This fresh air would come from an adjoining
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
(see options 1 and 2, Figure 2). You can also

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, Airfor Combustion and Ventilation for

required size of ventilation grills or ducts.

,_ WARNING: Rework work-
sheet, adding the space of the

adjoining unconfined space. The
combined spaces must have

enough fresh air to supply all
appliances in both spaces.

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.
Connect these items direcdy to the outdoors

or spaces open to theoutdoors. These spaces
include attics and crawl spaces. Follow the

National Fuel Gas Code NFPA 541ANSI
7-223.1, Section 5.3, Airfor Combustionand

Ventilation for required size of ventilation

grills or ducts.
IMPORTANT: Do not provide openings

for inlet oroutlet air into attic if attic has a
thermostat-cootxolled power vent. Heated

air entering the attic will activate the power

vent.

Ventilation

Grills

into Adjoining

Room,

Option 1

Or

Remove

Door into
Adjoinirxo

Room,

Option 3

12

A

12"

VentilationGrills

IntoAdjoiningRoom,

Option 2

Figure 2 - Ventilation Air from Inside Building

Outlet

Air

Inlet
Air

To Attic

InletAir

To

mm_ Crawl
[] Space

Ventilated B

CrawlSpace

Figure 3 - Ventilation Air from Outdoors

6 104267