Desa HGC23TON User manual

For more information, visit www.desatech.com
WARNING: If the information in this manual is not


         


— WHAT TO DO IF YOU SMELL GAS
 
• Do not touch any electrical switch; do not use any

 

 

 -

      

ALL-IN-ONE UNVENTED (VENT-FREE) GAS FIREPLACE SYSTEM
OWNER’S OPERATION AND INSTALLATION MANUAL
MODELS HGC23TON AND HGC23TOP

www.desatech.com 121623-01A2
SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 4
Unpacking............................................................ 5
Product Identication........................................... 5
Product Features................................................. 5
Assembly............................................................. 6
Air for Combustion and Ventilation ...................... 7
Installation ........................................................... 9
Operation........................................................... 16
Inspecting Burners............................................. 17
Cleaning ............................................................ 18
Troubleshooting................................................. 19
Specications .................................................... 23
Service Hints ..................................................... 23
Technical Service............................................... 23
Replacement Parts............................................ 23
Parts .................................................................. 24
Accessories ....................................................... 27
 
 
alteration, service or
maintenance can cause
   -

for correct installation
  -
   
additional information
   -


WARNING: This is an
  -
    
from the room in which


and ventilation air must
Air
for Combustion and Ven-
tilation

-
stalled in an aftermarket,*
 
 
-


     
   
   
   



-

known to the State of California




    -
    
    
    
    -



www.desatech.com
121623-01A 3


 Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, the replace may not be
working properly. Get fresh air at once! Have
replace serviced. Some people are more af-
fected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inu-
ence of alcohol and those at high altitudes.
 Natural and
propane/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
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this replace.
    


-



WARNING: Do not allow fans



    
   

    



SAFETY
Continued
   
    


    -
    

away from hot surfaces 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)
inside any structure. Locate propane/LP
supply tank(s) outdoors.
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
4. This replace shall not be installed in a
bathroom.

www.desatech.com 121623-01A4
SAFETY
Continued
11. Keep all air openings in front and at bottom
of heater clear and free of debris. This will
insure enough air for proper combustion.
12. Do not run replace
• where ammable liquids or vapors are
used or stored.
• under dusty conditions.
13. Do not use this replace to cook food or
burn paper or other objects.
14. Never place any objects in the replace
or on logs.
15. Do not use replace if any part has been
under water. Immediately call a qualied
service technician to inspect the room
replace and to replace any part of the
control system and any gas control which
has been under water.
16. Turn off fireplace and let cool before
servicing. Only a qualied service person
should service and repair replace.
17. Operating replace above elevations of
4,500 feet could cause pilot outage.
18. Do not operate fireplace if any log is
broken. Do not operate replace if a log
is chipped (dime-sized or larger).
19. To prevent performance problems, do not
use propane/LP fuel tank of less than 100
lbs. capacity.
20. Provide adequate clearances around air
openings.
5. Do not use this replace as a wood-burn-
ing 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 soot-
ing. Do not add lava rock around base.
Rock and debris could fall into the control
area of replace.
7. This replace is designed to be smokeless.
If logs ever appear to smoke, turn off re-
place and call a qualied service person.
Note: During initial operation, slight smok-
ing could occur due to log curing and re-
place burning manufacturing residues.
8. To prevent the creation of soot, follow the
instructions in Cleaning, page 18.
9. Before using furniture polish, wax, carpet
cleaner or similar products, turn replace
off. If heated, the vapors from these prod-
ucts may create a white powder residue
within burner box or on adjacent walls or
furniture.
10. This replace needs fresh air ventilation to
run properly. This replace has an Oxygen
Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the re-
place if not enough fresh air is available.
See Air for Combustion and Ventilation,
page 7. If replace keeps shutting off, see
Troubleshooting, page 19.
LOCAL CODES
Install and use replace 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/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-fired 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.

www.desatech.com
121623-01A 5
PRODUCT IDENTIFICATION
Piezo Ignitor
Screen
Access Door
Log
Control Knob
Figure 1 - All-In-One Fireplace (Mantel Not Shown)
PRODUCT FEATURES
Brick Liners
ALL-IN-ONE ASSEMBLY
This all-in-one assembly comes with the
replace already installed in the mantel for
easy installation.
UNPACKING
CAUTION:Donotremovedata



1. Remove replace and mantel from carton.
Log is wrapped and inside replace. Do
not remove at this time.
2. Remove all protective packaging applied
to replace for shipment.
3. Make sure replace includes one hard-
ware packet.
4. Check replace for any shipping damage.
If replace is damaged, promptly inform
dealer where you bought replace.
5. Remove hood from shipping location
inside back of mantel. Discard screws.

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 replaces. The ODS/pilot
shuts off the replace if there is not enough
fresh air.
Gas Line
Access Hole

www.desatech.com 121623-01A6
Figure 3 - Assembling Hood
(Mantel Not Shown)
Hood Screw
Top Trim
Panel
WARNING: Always have

-
 

-
    

    
   



Tools Required:
• Phillips screwdriver
• 5/16" hex wrench
• slotted screwdriver
• scissors
1. 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 (see Figure 2). Set screen aside
until installation has been completed.
2. Remove all packaging from inside of unit.
3. Remove bubble wrap from logs and
discard.
4. Check installation of brick liners. Brick
liners are in 4 pieces: 2 sides, 1 back and
1 top.
5. Place hood under top edge of rebox
opening. Use 3 screws from hardware kit
to mount hood to rebox (see Figure 3).
Screen
Shoulder
Screw
Figure 2 - Removing and Replacing
Screen (Mantel Not Shown)
ASSEMBLY

www.desatech.com
121623-01A 7
AIR FOR COMBUSTION AND VENTILATION
   
-
    

-

-



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 ap-
pliances 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 in-
sure proper venting of vented fuel-burning
appliances.


The following are excerpts from National Fuel
Gas Code. ANSI Z223.1/NFPA 54, Air for
Combustion and 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 7 through 9 will help
you classify your space and provide adequate
ventilation.
The air that leaks around doors and windows
may provide enough fresh air for combus-
tion 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
     Deter-
mining Fresh-Air Flow For Fireplace
Location

The National Fuel Gas Code, ANSI Z223.1/
NFPA 54 defines a confined space as a
space whose volume is less than 50 ft3per
1,000 Btu/hr (4.8 m3/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 ft3per
1,000 Btu/hr (4.8 m3/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
unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.

www.desatech.com 121623-01A8
AIR FOR COMBUSTION AND VENTILATION
Continued
Example: 35,840 Btu/Hr (maximum the
space can support)
40,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the 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.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 9.
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
unconned space. You will need no additional
fresh air ventilation.
WARNING:Iftheareainwhich
     
    
     
    



in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54  -



This fresh air would come from an adjoining
unconned 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 4 on page 9). You can also
remove door into adjoining room (see option
3, Figure 4 on page 9). Follow the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, Air
for Combustion and Ventilation for required
size of ventilation grills or ducts.
30,000
10,000
40,000
DETERMINING FRESH-AIR FLOW



Use this work sheet to determine if you have
a conned or unconned space.
 Includes the room in which you will
install replace 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 16 ft. (length) x 14 ft.
(width) x 8 ft. (ceiling height) = 1792 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: 1792 cu. ft. (volume of space) x 20
= 35,840 (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.
Direct-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)

www.desatech.com
121623-01A 9

Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent 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
AIR FOR COMBUSTION AND VENTILATION
Continued
Figure 4 - Ventilation Air from Inside
Building
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills
into
Adjoining
Room,
Option 1
Figure 5 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, 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 thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
INSTALLATION
NOTICE: This heater is intended
    


     -









   

WARNING: Never install the

 
• in a recreational vehicle
• where curtains, furniture,
   

-


 
 
• in windy or drafty areas

www.desatech.com 121623-01A10
INSTALLATION ITEMS
Before installing replace, make sure you
have the items listed below.
• external regulator (supplied by installer, for
propane/LP units only)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection*
• ground joint union
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
optional CSA design-certified equipment
shutoff valve from your dealer. See Acces-
sories, page 27.

WARNING: Maintain the
minimum clearances shown in
      


     -
    

   -

CAUTION: If you install the

 

 

For convenience and efciency, install re-
place
• where there is easy access for operation,
inspection and service
• in coldest part of room
-
    
currents move heat to wall sur-



    
    
   -

intheairexist,maydiscolorwalls

    
-


IMPORTANT: Vent-free replaces add mois-
ture to the air. Although this is benecial,
installing replace in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See Air for Combustion
and Ventilation, page 7.
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 rear, sides or top of your
replace.

Use 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.
   
-


INSTALLATION
Continued