Desa CGEFP33PRB Quick start guide

For more information, visit www.desatech.com
WARNING: If the information in this manual is not fol-
lowed 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 quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
UNVENTED (VENT-FREE) GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
CGEFP33PRB, CGEFP33NRB
EFP33PRB, EFP33NRB
Gas Fireplace with Total Control System (TCS)
Shown with optional
hearth/base accessory.

www.desatech.com 111245-01C2
SAFETY INFORMATION
TABLE OF CONTENTS
Safety Information ............................................... 2
Product Identication........................................... 4
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 5
Air for Combustion and Ventilation ...................... 6
Installation ........................................................... 8
Operating Fireplace........................................... 25
Inspecting Burners............................................. 28
Cleaning and Maintenance................................ 29
Troubleshooting................................................. 30
Specications .................................................... 33
Service Hints ..................................................... 33
Technical Service............................................... 33
Illustrated Parts Breakdown and Parts List........ 34
Replacement Parts............................................ 40
Accessories ....................................................... 40
Wiring Diagram.................................................. 42
Templates .......................................................... 43
Parts Central...................................................... 45
  -
-
teration, service or main-
tenance can cause in-

Refer to this manual for
correct installation and
 
For assistance or addi-
tional information con-
   


WARNING: This is an un-
  

the room in which it is
  
 
and ventilation air must
Air
for Combustion and Ven-
tilation

-
stalled in an aftermarket,*
 
 
-


     
   
   
   



   
  
chemicals known to the state
of California to cause cancer or
-



    -
    
    
    
    -



www.desatech.com
111245-01C 3


 Early signs of carbon
monoxide poisoning resemble the u, with head-
aches, dizziness 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 pregnant women, people with heart
or lung disease or anemia, those under the inuence
of alcohol and those at high altitudes.
    Natural and pro-
pane/LP gases are odorless. An odor-making agent
is added to the gas. The odor helps you detect a gas
leak. However, the odor added to the gas can fade.
Gas may be present even though no odor exists.
Make certain you read and understand all warn-
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
    
this heater or its controls can

WARNING: Do not use a
   
-

WARNING: Do not allow fans



    
   

    



 
    


    -
-

away from hot surface to avoid
-



-
dren when they are in the room

-




    
     -
     

    
-
-

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. Do not place propane/LP supply tank(s) in-
side any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. 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 supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions
• if you cannot reach your gas supplier, call
the re department
SAFETY INFORMATION
Continued

www.desatech.com 111245-01C4
SAFETY INFORMATION
Continued
PRODUCT
IDENTIFICATION
Log Set
Wall Switch
Assembly
Piezo
Ignitor
Remote
Control
Manual
Override
Handle
Manual Ignition
Bypass Switch
Figure 1 - Fireplace Floor Assembly
Figure 2 - Fireplace
Top Louver Assembly
Firebox
Hood
Bottom Louver
Assembly
Screen
Assembly
Top Outer
Casing
Firebox
Support
Blower Assembly
(Optional)
4. This replace shall not be installed in a bed-
room or bathroom.
5. Do not use this replace as a wood-burning
replace. Use only the logs provided with the
replace.
6. Do not add extra logs or ornaments such as
pine cones, vermiculite or rock wool. Using
these added items can cause sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of replace.
7. To prevent the creation of soot, follow the instruc-
tions in Cleaning and Maintenance, page 29.
8. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off. If
heated, the vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
9. This replace needs fresh air ventilation to run
properly. This replace has an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS shuts down the replace if not enough
fresh air is available. See Air for Combustion
and Ventilation, page 6. If replace keeps
shutting off, see Troubleshooting, page 30.
10. Do not run replace
• where ammable liquids or vapors are used
or stored
• under dusty conditions
11. Do not use this replace to cook food or burn
paper or other objects.
12. Do not use replace if any part has been exposed
to or under water. Immediately call a qualied
service technician to inspect the replace and to
replace any part of the control system and any
gas control which has been under water.
13. Do not operate replace if any log is broken.
Do not operate replace if a log is chipped
(dime-sized or larger).
14. Turn replace off and let cool before servicing.
Only a qualied service person should service
and repair replace.
15. Operating replace above elevations of 4,500
feet could cause pilot outage.
16. To prevent performance problems with pro-
pane/LP units, do not use propane/LP fuel
tanks of less than 100 lb. capacity.
17. Provide adequate clearances around air
openings.

www.desatech.com
111245-01C 5
LOCAL CODES
Install and use replace with care. Follow all local
codes. In the absence of local codes, use the lat-
est edition of The National Fuel Gas Code, ANSI
Z223.1/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
State of Massachusetts: The installation
must be made by a licensed plumber or
gas tter in the Commonwealth of Mas-
sachusetts.
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.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.
UNPACKING
CAUTION: Do not remove the




1. With utility knife, cut the carton all the way
around above the staples on the bottom tray.
Lift the carton off the heater. Remove packing.
Note: The hood is located in the packing on
the right hand side of the heater front. Lift the
heater off the bottom tray.
2. Locate two screws above top corners of the
replace screen. Remove and discard these
screws. Lift replace screen up and pull out
to remove.
3. Remove protective packaging applied to logs,
log base assembly and replace.
4. Remove replace hood from carton insert.
5. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought replace.
PRODUCT FEATURES

This vent-free replace is clean burning. It requires
no outside venting. There is no heat loss out a
vent or up a chimney. Heat is generated by both
realistic ames and glowing embers. When used
without the optional blower, the replace requires
no electricity making it ideal for emergency
backup heat.
SAFETY DEVICE
This replace has a pilot with an Oxygen Depletion
Sensing (ODS) safety shutoff system. The ODS/
pilot is a required feature for vent-free room heat-
ers. The ODS/pilot system shuts off the replace
if there is not enough fresh air.

This replace has a piezo ignitor. This system
requires no matches, batteries or other sources to
light replace.
WIRELESS REMOTE CONTROL
This replace features an infrared wireless remote
control. This control system can be used to auto-
matically light the pilot and adjust the burner ame
height at the push of a button.
WIRED WALL-MOUNTED REMOTE
CONTROL
This replace features a two-button wall switch as-
sembly with glowing LED’s. The wall switch per-
forms the same functions as the wireless hand-held
remote control with the added feature of LED’s for
visual feedback of operation and status.

ACCESSORY
This replace accepts an optional blower assembly
(not included). The GA3650T/GA3700T Series
blower operates thermostatically and features a
variable speed control. The GA3700/GA3750
Series operates manually and also features a vari-
able speed control. The blower circulates heated
air from the replace into the room. Use of blower
is optional. See Accessories, page 40.

www.desatech.com 111245-01C6
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
     
    -

-


     
  

Today’s homes are built more energy efcient
than ever. New materials, increased insulation and
new construction methods help reduce heat loss
in homes. Home owners weather strip and caulk
around windows and doors to keep the cold air out
and the warm air in. During heating months, home
owners want their homes as airtight as possible.
While it is good to make your home energy ef-
cient, your home needs to breathe. Fresh air must
enter your home. All fuel-burning appliances need
fresh air for proper combustion and ventilation.
Exhaust fans, replaces, clothes dryers and fuel
burning appliances draw air from the house to
operate. You must provide adequate fresh air for
these appliances. This will insure proper venting
of vented fuel-burning appliances.

VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section 5.3,
Air for Combustion and Ventilation.
All spaces in homes fall into one of the three fol-
lowing ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 6 through 8 will help
you classify your space and provide adequate
ventilation.

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.

construction where:
 -
    
      
2

and
 
and
      
     


    


If your home meets all of these three
    
   Ventilation Air From
Outdoors
If your home does not meet all of the three
    Determining
Fresh-Air Flow For Fireplace Location

The National Fuel Gas Code, ANSI Z223.1/NFPA
54 denes a conned 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 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 com-
municating directly with the space in which the
appliances are installed*, through openings not
furnished with doors, are considered a part of the
unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation grills
between them.
DETERMINING FRESH-AIR FLOW



Use this work sheet to determine if you have a
conned or unconned space.
Space: Includes the room in which you will
install replace plus any adjoining rooms with
doorless passageways or ventilation grills between
the rooms.

www.desatech.com
111245-01C 7
AIR FOR COMBUSTION
AND VENTILATION
Continued
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 20 ft. (length) x 18 ft.
(width) x 8 ft. (ceiling height) = 2880 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. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
__________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2880 cu. ft. (volume of space) x 20 =
57,600 (maximum Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free replace ___________ Btu/Hr
Gas water heater* ___________ Btu/Hr
Gas furnace ___________ Btu/Hr
Vented gas heater ___________ Btu/Hr
Gas replace logs ___________ Btu/Hr
Other gas appliances* + ___________ Btu/Hr
Total = ___________ Btu/Hr
* Do not include direct-vent gas appliances. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
Example:
Gas water heater ________ Btu/Hr
Vent-free replace + ________ Btu/Hr
Total = ________ Btu/Hr
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: 57,600 Btu/Hr (maximum the space
can support)
73,000 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 maxi-
mum 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 adjoin-
ing 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.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors, page 8.
C. Install a lower Btu/Hr replace, 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 un-
conned space. You will need no additional fresh
air ventilation.
WARNING: If the area in
-


    



in the National Fuel Gas Code,
ANSI Z223.1/NFPA54 Section 5.3

VENTILATION AIR

This fresh air would come from an adjoining un-
conned space. When ventilating to an adjoining
unconned space, you must provide two perma-
nent 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 3). You
can also remove door into adjoining room (see
option 3, Figure 3). Follow the National Fuel Gas
Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for
Combustion and Ventilation for required size of
ventilation grills or ducts.
40,000
33,000
73,000
Figure 3 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"

www.desatech.com 111245-01C8
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or
ducts. You must provide two permanent openings:
one within 12" of the ceiling and one within 12"
of the oor. Connect these items directly to the
outdoors or spaces open to the outdoors. These
spaces include attics and crawl spaces. Follow the
National Fuel Gas Code, ANSI Z223.1/NFPA 54,
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.
AIR FOR COMBUSTION
AND VENTILATION
Continued
Figure 4 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
INSTALLATION
NOTICE: This heater is intended
    


     -








 -
    -

WARNING: Never install the

 
• in a recreational vehicle
• where curtains, furniture,
   



 
• in windy or drafty areas
-
    
currents move heat to wall sur-

     
   

     
smoke, aromatic candles, clean-



Note: Your replace is designed to be used in zero
clearance installations. Wall or framing material
can be placed directly against any exterior surface
on the rear, sides or top of your replace, except
where standoff spacers are integrally attached. If
standoff spacers are attached to your replace,
these spacers can be placed directly against wall
or framing materials.
Use the dimensions shown for rough openings to
create the easiest installation (see Built-In Fire-
place Installation, page 21).
IMPORTANT: Vent-free heaters add moisture to
the air. Although this is benecial, installing re-
place in rooms without enough ventilation air may
cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, page 6.
IMPORTANT: Make sure the replace is level.
If replace is not level, log set will not work
properly.

Use the correct gas type (natural or propane/LP)
for your unit. If your gas supply is not correct, do
not install replace. Call dealer where you bought
replace for proper type replace.

www.desatech.com
111245-01C 9





   
-
   


This fireplace normally operates under 120
VAC/60 Hz line voltage. The electrical cord sup-
plied with your replace is ve feet in length. You
must locate replace within reach of a 120 volt
grounded electrical outlet. If not, you must install
an electrical outlet within reach of the replace
power cord. The GA3555 outlet accessory may
be used for built-in applications.
INSTALLATION CLEARANCES
WARNING: Maintain the



INSTALLATION
Continued
MINIMUM CLEARANCE TO

   
   
0" 16" 0"
Carefully follow the instructions below. This will
ensure safe installation.
Minimum Clearances For Side


A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 5.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This combus-
tible material must be 4" from the side of the
replace cabinet (see Figure 5).
B. Clearances from the top of the replace opening
to the ceiling should not be less than 42".
Figure 5 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example

After unpacking replace (see Unpacking, page 4),
we suggest that you install your replace system
in the following sequence:
1. Removal of replace oor assembly (required)
2. Electrical connections for power cord (re-
quired)
3. Relocating wall switch (optional)
4. Installing blower accessory (optional)
5. Connecting replace to gas supply (required)
6. Checking gas connections (required)
7. Firebox installation, conventional or built-in
(required)
8. Installing brass perimeter trim (optional)
9. Installing replace hood (required)
10. Installing logs (required)
11. Installing replace screen (required)
Use the following instructions to complete
each step.


NOTICE:   


  
-

1. Remove replace screen. Remove two screws
that hold replace screen in place for shipping.
These screws are located near top of screen.
Discard screws. Lift replace screen up and
pull out to remove.
2. If logs are installed, carefully remove the logs
and set aside, noting the properly mounted
location of each.

www.desatech.com 111245-01C10
3. Remove screws that attach replace oor as-
sembly to replace. Open lower louver door.
Carefully lift up replace oor assembly and
remove from replace, taking care to pull
exible gas line through the access holes (see
Figure 6). Note: Be careful of all wires on
underside of log base.
     
-


INSTALLATION
Continued
Figure 6 - Removing Fireplace Floor
Assembly
Screws
Fireplace Floor
Assembly
Flexible Gas Line
ELECTRICAL CONNECTIONS FOR

This fireplace operates on 120 VAC, 60 Hz
power. An electrical power cord is supplied with
this unit.
For Mantel Installation
1. Determine from which side of the replace the
power cord will exit. Locate the 1.5" diameter
hole near the center of oor support bracket on
appropriate side of lower cavity (see Figure 7).
2. Locate power cord. Remove wire tie or tape
holding plug end of power cord.
3. Power cord has 2 plastic hole bushings
threaded onto it. Route cord’s 3-prong plug
through the 1.5" diameter hole in appropriate
oor support bracket.
4. Push rst plastic bushing completely through
hole. Squeeze bushing as needed to do this.
5. Install the second plastic bushing into the
hole in the oor support bracket by snapping
into place.
6. Route the 3-prong plug through the 1.5" hole
in replace outer casing.
7. Install the rst plastic bushing into this hole
by snapping into place.
8. After you have connected to gas supply and
checked your gas connections (see pages 17
through 20), plug power cord into any conve-
nient 3-prong grounded wall receptacle near
replace.
For Recessed Installation
If an outlet is not installed in replace, install
model GA3555 - Outlet Kit with Cover. This
kit will supply a convenient 3-prong grounded
electrical outlet for power. Refer to installation
manual provided with this optional accessory for
instructions on wiring. Note: A qualied installer
must make all electrical connections.
RELOCATING WALL SWITCH

Note: The decorative wall switch plate supplied
is white. The wall switch plate may be painted to
match your decor.
The push-button switch and decorative wall
plate assembly supplied with your replace is
pre-mounted at the factory in the lower cavity of
the replace. You may relocate this wall switch
assembly to a more convenient location such as the
side of your mantel or directly onto the wall near
the replace. To mount the wall switch assembly,
you must rst cut openings in the mantel or wall
where the switch will be located.
Figure 7 - Routing Power Cord
Power
Cord
Bushings
Hole in Floor
Support Bracket
Hole in Outer
Casing