Desa CGFB32C, CGFB32NC User Manual

UNVENTED (VENT-FREE)

UNIVERSAL FIREBOX

OWNER'S OPERATION AND INSTALLATION MANUAL

CGFB32C

(shown)

Circulating

Louvered and

CGFB32NC

Noncirculating

Smooth Face

Models

Shown with optional cabinet mantel and hearth base.

WARNING: Ifthe information in this manual is not followed exactly, a fire or explosion may result causing 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

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.

This firebox may be Installed In an aftermarket* manufactured (mobile) home, where not prohibited

by state or local codes. * Aftermarkct: Completion of sale, not for purpose of resale, from the manufacturer (I.e. Installation of this product Is

permitted after the manufactured (mob,e) home I$ altad).

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 aquali-

fied installer, service agency, or the gas supplier.

WARNING: For use only with decorative type unvented room

heaters. Do not build a wood fire.

This firebox has been tested and

approved by I.A.S. under their REQ. 2-97 for use with any ANS Z21.11.2 approved gas logs.

Save this manual for future reference.

UNVENTED (VENT-FREE) FIREBOX

SAFETY

5. Youmust operate this fireplace with the

INFORMATION

A WARNINGS

6. Do not allow fans to blow directly into

IMPORTANT: Read this owner's manual carefully and completely

before trying to assemble, oper- ate, or service this firebox. Im- proper use of this firebox can cause serious Injury or death from burns, fire, explosion, electrical

shock, and carbon monoxide poisoning.

WARNING: Carefully review

the instructions supplied with the decorative type unvented room heater for the minimum fireplace

size requirement. Do not install the appliance in this firebox, un-

less this firebox meats the mini- mum dimensions required for the

installation.

am, WARNING: Any change to this firebox or its controls can

be dangerous.

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

2. Never install the firebox

• in a recreational vehicle

• where curtains, furniture, clothing, or

other flammable objects are less than 42 inches from the front, top, or sides 13.

of the firebox

• in high traffic areas

• in windy or drafty areas 14.

3. Do not use this firebox as a wood-burn- ing fireplace.

4. Do not add extra logs or ornaments 15.

such as pine cones, vermiculite, or rock

wool. Using these added items can

cause sooting. 16.

7. Do not use a blower insert, hood, heat

8. Vent-free gas log heaters installed in

9. Do not run firebox

10. Do not use this firebox to cook food or

11. Never place any objects in the firebox

12. Firebox ftont and screen becomes very

provided fireplace screen (closed), hood, and brick liner in place. Make sure these parts are in place before run- ning firebox.

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.

exchanger insert, or other accessory not approved for use with this heater. Do not use blower accessory with Model

CGFB32NC.

these fireboxes require fresh air venti-

lation to run properly. SeeAirfor Com-

bustion and Ventilation, pages 4

through 6.

• where flammable liquids or vapors are used or stored

• under dusty conditions

bum paper or other objects.

or on logs.

hot when running firebox. Keep chil-

dren and adults away from hot surfaces

to avoid bums or clothing ignition. Fire-

box will remain hot for a time after

shutdown. Allow surfaces to cool be- fore touching.

Carefully supervise young children when they are in the room with fire-

box.

Turn firebox off and let cool before servicing. Only a qualified service per-

son should service and repair firebox. Operating unvented heaters (logsets)

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

Do not use the firebox if it has been under water due to the shock hazard that could result with the blower acces-

sary (if installed) in place.

LOCAL CODES

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 CodeANSZ223.1, also known as NFPA 54".

Firebox must be electrically grounded in

accordance with the NationalElectricalCode,

ANS/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

UNPACKING

With utility knife, cut the carton all the way around above the staples on the

bottom tray. Lift the carton off the fire- box. Remove packing.

Check carton contents for the following:

• Screen assembly

• Screen support rod

• Hardware and parts bag containing the following:

• Owners Operation and Installation

Manual

• 2 - Black #10 x 5/8" shouldered

hex screws

3. If any items are missing, inform dealer where you bought firebox.

4. Check all items for any shipping dam- age. If damaged, promptly inform dealer where you bought firebox.

2 103s73

OWNER'S MANUAL

PRODUCT FEATURES

Operation

This firebox is designed to accept unvented decorative gas logs. It requires no outside

venting orchimney making installation easy

and inexpensive. When used without the blower (model CGFB32C only), the firebox

requires no electricity making it ideal for emergency backup heat.

Blower Accessory

The CGFB32C firebox wilt accept the

GA3750 accessory. The variable blower allows you to select the fan speed you de-

sire. The blower circulates heated air from the firebox into the room. Use of blower is

optional.

PRODUCT

SPECIFICATIONS

Built-in Nailing

Flanges

Louvers

(Model CGFB32C only)

Figure 1 - Firebox Front View

19 3/8"

Standoffs (Model CGFB32NC only)

351116

31 3/4"

2 3/4'

:[-

li, ?•

Standoffs

(Model CGFB32NC only)

33 11/16"

32 3/16"

Electrical Electrical

Access Hole Access Hole

Figure 2 - Firebox Side View

2 1/2"

Gas LineAccess

jq 22 1/2" .I

16 1/2"

19 1/4"

O • O

315/8° 343/8"

355/8"

Figure 3 - Firebox Top View

I03S_ 3

UNVENTED (VENT-FREE) FIREBOX

LOCATING FIREBOX

PLANNING

Plan where you will install the firebox. This will save time and money later when you install the firebox. Before installation, con-

sider the following:

1. Where the firebox will be located. Al- low for wall and ceiling clearances (see

Installation Clearances, page 7).

2. Everything needed to complete instal- lation.

3. These models CANNOT be installed in a bedroom or bathroom.

4. Proper air for combustion and ventila- tion (see below).

AIR FOR COMBUSTION AND VENTILATION

WARNING: This firebox shall

not be installed ina confined space or unusually tight construction

unless provisions are provided foradequate combustion and ven- tilation air. Reed the following in- structions 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 construction methods help reduce heat loss inhomes. 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 most enter your home. All fuel-burning

appliances need fresh air for proper com- bustion and ventilation.

Exhaust fans, fireboxes, clothes dryers, 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

The following _re excerpts from National Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- tion 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 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 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"11kg per pa-sec-m=)

or less with openings gasketed or sealed and

b. weather stripping has been

added on opeaable windows and doors and

c. caulldngor sealants 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-

tionsfor 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, page 6.

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

Determining Fresh-Air Flow For Fireplace Location, page 5.

Confined and Unconfined Space

The National Fuel Gas Code (ANS Z2123.1,

1992 Section 5.3) defines aconfined space

as 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 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 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.

This firebox 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 ifthere are doorless passageways or ventila-

tion grills between them.

4 103573

OWNER'S MANUAL

AIR FOR COMBUSTION AND

VENTILATION

Continued

DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION

Determining if You Have a Confined or Unconfined Space

Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install 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 Example: Gas furnace Btu/Hr Gas water heater 40,000 Btu/Hr

Vented gas heater Btu/Hr Vent-free firebox with log heater + 39,000 Btu/Hr Gas firebox logs Btu/Hr Total 79,000 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 tnaximum Btu/Hr the space can support with the actual amount of Btu/Hr used.

Btu/l-lr (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.

Yon 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 adjoin-

ing 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 fireplace, 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.

_lb WARNING: Ifthe area In which the firebox end gas log heater may be operated is smeller than that defined as I an unconfined 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 Code, ANS Z223.1, 1992, Section 5.3 or

eppllceble local codes.

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