Desa VGC24NR 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
-
UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
REMOTE-READy MODELS VGC18NR/PR,
VGC24NR/PR, VGC30NR/PR, EC18NR/PR, EC24NR/PR, EC30NR/PR,
VCC18NR/PR, VCC24NR/PR AND VCC30NR/PR
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SAFETy
TAbLE OF CONTENTS
Safety .................................................................. 2
Product Identication........................................... 5
Local Codes......................................................... 5
Optional Remote Control Accessories................. 5
Unpacking............................................................ 5
Product Features................................................. 6
Air For Combustion and Ventilation ..................... 6
Installation ........................................................... 8
Operation........................................................... 22
Inspecting Burners............................................. 26
Wiring Diagram.................................................. 26
Cleaning and Maintenance................................ 26
Troubleshooting................................................. 28
Parts .................................................................. 32
Specications .................................................... 36
Service Hints ..................................................... 36
Technical Service............................................... 36
Replacement Parts............................................ 36
Accessories ....................................................... 37
Warranty ..............................................Back Cover
alteration, service or main-
to this manual for correct
-
-
tance or additional infor-
-
masonry or UL127 fac-
-
-
in accordance with ANSI
that includes instructions
-
WARNING: This is an
-
from the room in which
and ventilation air must
Refer to Air
for Combustion and Ven-
tilation
-
stalled in an aftermarket,*
-
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119162-01H 3
WARNING: Do not allow fans
will remain hot for a time after
-
dren when they are in the room
-
-
-
-
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known to the state of California
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-
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. 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 inu-
ence of alcohol and those at high altitudes.
Natural and Propane/LP
gases are odorless. An
odor-making agent is added to these gases.
The odor helps you detect a gas leak. How-
ever, 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.
this heater or its controls can
WARNING: Do not use a
-
SAFETy
Continued
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SAFETy
Continued
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 (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
4. This heater shall not be installed in a bed-
room or bathroom, unless installed as a
vented appliance. See Installing Damper
Clamp Accessory for Vented Operation,
page 12. This gas log set may not be
installed as a vented appliance in a bed-
room or bathroom in the Commonwealth
of Massachusetts.
5. Before installing in a solid fuel burning re-
place, the chimney ue and rebox must
be cleaned of soot, creosote, ashes and
loose paint by a qualied chimney cleaner.
Creosote will ignite if highly heated. A dirty
chimney ue may create and distribute
soot within the house. Inspect chimney
ue for damage. If damaged, repair ue
and rebox before operating heater.
6. Do not burn solid-fuel in a masonry or
UL127 factory-built replace in which a
vent-free room heater is installed.
7. If replace has glass doors, never operate
this heater with glass doors closed. If you
operate heater with doors closed, heat
buildup inside replace will cause glass to
burst. Make sure there are no obstructions
across openings of replace.
8. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 26.
9. 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 and furniture.
10. This heater needs fresh, outside air ven-
tilation to run properly. This heater has an
Oxygen Depletion Sensing (ODS) safety
shutoff system. The ODS shuts down the
heater if enough fresh air is not available.
See Air for Combustion and Ventilation,
page 6. If heater keeps shutting off, see
Troubleshooting, page 28.
11. Do not run heater
• where ammable liquids or vapors are
used or stored
• under dusty conditions
12. Do not use this heater to cook food or burn
paper or other objects.
13. Do not use heater if any part has been ex-
posed to or under water. Immediately call
a qualied 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. Do not operate heater if any log is broken.
Do not operate heater if a log is chipped
(dime-sized or larger).
15. Turn heater off and let cool before servic-
ing, installing or repairing. Make sure the
selector switch is in the OFF position. Only
a qualied service person should install,
service or repair heater.
16. Make sure the selector switch is in the
OFF position when you are away from
home for long periods of time.
17. Remote-ready heaters must not be con-
nected to any external electrical source.
18. Operating heater above elevations of
4,500 feet may cause pilot outage.
19. To prevent performance problems, do not
use propane/LP fuel tank of less than 100
lb. capacity (propane/LP units only).
20. Provide adequate clearances around air
openings.
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PRODUCT IDENTIFICATION
Figure 1 - Product Identication
AUTO/OFF/
ON Switch
Chassis
LOCAL CODES
Glowing
Embers
Electronic
Ignitor
Control
Knob
Remote
Control
(Optional)
Flame
Adjustment
Knob
AUTO/OFF/
ON Switch
Remote
Control
(Optional)
Glowing
Embers
Chassis
Control
Knob
Flame
Adjustment
Knob
State of Massachusetts: The installa-
tion must be made by a licensed plumber
or gas fitter 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.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.
VCC Model Series
VGC and EC Model Series
OPTIONAL REMOTE
CONTROL ACCESSORIES
There are four optional remote controls that
can be purchased separately for Remote-
Ready Models Only:
• wall switch
• hand-held ON/OFF remote
• wall thermostat
• hand-held thermostat remote
See Accessories, page 37.
The wall thermostat or hand-held thermostat
may not be used where vented decorative list-
ing is required.
UNPACkING
CAUTION: Do not remove the
-
1. Remove logs and heater base assembly
from carton.
Note: Do not pick up heater base assem-
bly by burners. This could damage heater.
Always handle base assembly by grate.
2. Remove all protective packaging applied
to logs and heater for shipment.
3. Check all items for any shipping damage.
If damaged, promptly inform dealer where
you bought heater.
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/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
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OpERATION
This heater 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 coals. This
heater is designed for vent-free operation
with ue damper closed. It has been tested
and approved to ANSI Z21.11.2 standard for
unvented heaters. State and local codes in
some areas prohibit the use of vent-free heat-
ers. This heater may also be operated as a
vented decorative (ANSI Z21.60) product by
opening the ue damper.
PRODUCT FEATURES
This heater has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free
room heaters. The ODS/pilot shuts off the
heater if there is not enough fresh air.
ELECTRONIC IGNITION SYSTEM
This heater has an electronic ignitor to light
heater fuel supply.
AIR FOR COMbUSTION AND VENTILATION
WARNING: This heater shall
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Today’s homes are built more energy efcient
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. Dur-
ing heating months, home owners want their
homes as airtight as possible.
While it is good to make your home energy
efcient, 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 insure 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 classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned 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 un-
usually tight construction, you must provide
additional fresh air.
construction where:
-
-112
and
and
If your home meets all of the three criteria
Ventilation Air From Outdoors,
If your home does not meet all of the
Determin-
Fresh-Air Flow For Heater Location,
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119162-01H 7
AIR FOR COMbUSTION AND VENTILATION
Continued
The National Fuel Gas Code, ANSI Z223.1/
NFPA 54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu per hour (4.8 m3per kw) of the ag-
gregate input rating of all appliances installed
in that space and an unconned space as a
space whose volume is not less than 50 cubic
feet per 1,000 Btu per hour (4.8 m3per 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 un-
conned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Use this work sheet to determine if you have
a conned or unconned space.
Includes the room in which you will install
replace plus any adjoining rooms with door-
less 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 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 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: 2560 cu. ft. (volume of space) x 20
= 51,200 (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 (max. the space can support)
______
Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 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 conned
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup-
port. 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 unconned space, remove door to adjoin-
ing room or add ventilation grills between
rooms. See Ventilation Air From Inside
Building, page 8.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 8.
C. Install a lower Btu/Hr replace, if lower Btu/Hr
size makes room unconned.
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
WARNING: If the area in
-
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation, or
40,000
33,000
73,000
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AIR FOR COMbUSTION AND VENTILATION
Continued
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
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.
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
INSTALLATION
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned 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 National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
Figure 2 - 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"
NOTICE: This heater is intended
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NOTICE: State or local codes
-
WARNING: Make sure the
-
WARNING: Seal any fresh
air vents or ash clean-out doors
-
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119162-01H 9
Size
Front
Width
Rear*
Width
18" 19" 14" 28" 20"
24" 19" 14" 32" 22"
30" 19" 14" 40" 30"
*Measured at 14" depth
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-
WARNING: Never install the
heater
unless installed as a vented
• in a recreational vehicle
•
where curtains, furniture, cloth-
-
• in windy or drafty areas
CAUTION:Thisheatercreates
move heat to wall surfaces next
-
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
heater in rooms without enough ventilation
air may cause mildew to form from too much
moisture. See Air for Combustion and Ventila-
tion, page 6.
CHECK GAS TYpE
Use the correct type of gas (natural or propane/
LP). If your gas supply is not the correct gas
type, do not install heater. Call dealer where
you bought heater for proper type heater.
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INSTALLATION AND CLEARANCES
WARNING: Maintain the
MINIMUM FIREpLACE CLEARANCE TO
: 18", 24", 30", Side Wall: 16"
: 42", Floor: 5", Front: 36"
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured replace or listed
vent-free rebox.
A. Clearances from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 4,
page 10.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material
and protrudes 3 1/2" from the wall. This
combustible material must be 4" from the
side of the replace cabinet (see Figure
4, page 10).
INSTALLATION
Continued
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INSTALLATION
Continued
Note: When installing your gas logs into
a manufactured rebox, follow rebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the replace
opening to the ceiling should not be less
than 42".
NOTICE: Manual control heaters
If so, you must always run heater
Installing Damper
Clamp Accessory for Vented
Operation
Heat Resistant
Material
(A)
Figure 5 - Heat Resistant Material (Slate,
Marble, Tile, etc.) Above Fireplace
1
2" or more Noncombustible mate-
rial OK.
Between 8" and 12"
24" or 30" Models:
Install fireplace hood
accessory (GA6050,
GA6052 or GA6053 see
Accessories, page 37).
18" Model: Noncombus-
tible material OK.
Less than 8"
Noncombustible mate-
rial must be extended to
at least 8". See Between
8" and 12", above. If you
cannot extend material,
you must operate heater
with ue damper open.
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
Clearances
Note: If using a mantel proceed to If Using
Mantel. If not using a mantel, follow these
instructions.
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.) must
be at least 1/2" thick. With sheet metal, you
must have noncombustible material behind
it. Noncombustible material must extend at
least 8" up (for all models). If noncombustible
material is less than 12", you must install
the replace hood accessory (24" and 30"
Models Only). See Figure 5 for minimum
clearances.
You must have noncombustible material(s)
above the replace opening. Noncombustible
materials (such as slate, marble, tile, etc.)
must be at least 1/2" thick. With sheet metal,
you must have noncombustible material be-
hind it. Noncombustible material must extend
at least 8" up (for all models). If noncombus-
tible material is less than 12", you must install
the replace hood accessory (24" and 30"
Models Only). Even if noncombustible mate-
rial is more than 12", you may need the hood
accessory to deect heat away from your
mantel shelf. See Figure 5 and Figures 6 and
7, page 11, for minimum clearances.
IMPORTANT: If you cannot meet these mini-
mum clearances, you must operate heater
with chimney ue damper open. Go to Install-
ing Damper Clamp Accessory for Vented
Operation, page 12.
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119162-01H 11
INSTALLATION
Continued
MANTEL CLEARANCES
In addition to meeting noncombustible mate-
rial clearances, you must also meet required
clearances between replace opening and
mantel shelf. If you do not meet the clearances
listed below, you will need a hood.
If you meet minimum clearance between
mantel shelf and top of replace opening, a
hood is not required (see Figure 6).
Figure 6 - Minimum Mantel Clearances
Without Using Hood
14"
Min.
Combustible
Material
Noncombustible Material
Figure 8 - Minimum Fireplace Clearances
If Installed at Floor Level
Figure 7 - Minimum Mantel Clearances
When Using Hood
Minimum Non-
Combustible
Material
Minimum Non-
Combustible
Material Height
Distances to
Underside of
Mantel
Top of
Fireplace
Opening
Underside of
Mantel Shelf
12"
8"
(A)
18"
14"
20"
17"
22"
19"
24"
20"
All minimum
distances are
in inches
Log Set
24"/30"/36"
Models
18" Model
2
1/2
"
6"
8"
10"
Mantel Shelf
Minimum
Noncombustible
Material 8"
Min.
12" 15" 18"
Log Sets
18", 24",
& 30"
Models
20"
2
1/2
"
6"
8"
10"
12"
Distances to
Underside of
Mantel
Hood (GA6050,
GA6052,
or GA6053)
Top of
Fireplace
Opening
Underside
of Mantel
Shelf
Mantel Shelf
Hearth
5"
Min.
Combustible
Material
Figure 9 - Minimum Fireplace Clearances
Above Combustible Flooring
-
-
Follow all minimum clearances
NOTICE: If your installation does
not meet the minimum clear-
ances shown, you must do one
-
• remove the mantel
FLOOR CLEARANCES
A. If installing appliance on the oor level,
you must maintain the minimum distance
of 14" to combustibles (see Figure 8).
B. If combustible materials are less than 14"
to the replace, you must install appliance
at least 5" above the combustible ooring
(see Figure 9).
If minimum clearances in Figure 6, are not
met, you must have a hood. When using a
hood there are still certain minimum mantel
clearances required. Follow minimum clear-
ances shown in Figure 7, when using hood.
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INSTALLATION
Continued
INSTALLING DAMpER CLAMp
OpERATION
Note: When used as a vented heater, ap-
pliance must be installed only in a solid-fuel
burning fireplace with a working flue and
constructed of noncombustible material.
For Massachusetts Residents Only: Instal-
lation of this gas log set as a vented appliance
in the Commonwealth of Massachusetts re-
quires the damper be permanently removed
or welded in the fully open position.
If your heater is a manually-controlled model,
you may use this heater as a vented product.
There are three reasons for operating your
heater in the vented mode.
1. The replace does not meet the clearance
to combustibles requirements for vent-
free operation.
2. State or local codes do not permit vent-
free operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you,
you must permanently open chimney ue
damper. You must install the damper clamp
accessory (to order, see Accessories, page
37). This will insure vented operation (see Fig-
ure 10). The damper clamp will keep damper
open. Installation instructions are included
with clamp accessory.
See chart below for minimum permanent ue
opening you must provide. Attach damper
clamp so the minimum permanent ue open-
ing will be maintained at all times.
Diameter Area
5" 20 sq. inches
6" 29 sq. inches
7" 39 sq. inches
8" 51 sq. inches
Chimney Minimum permanent
6' to 15' 39 sq. inches
15' to 30' 29 sq. inches
Damper
Damper
Clamp
Damper
Damper
Clamp
Damper
Figure 10 - Attaching Damper Clamp
WARNING: You must secure
not, heater will move when you
-
-
-
IMPORTANT: Make sure the heater burners
are level.
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119162-01H 13
INSTALLATION
Continued
Installation Items Needed
• hardware package (provided with heater)
• approved exible gas hose and ttings (not
provided) (if allowed by local codes)
• sealant (resistant to propane/LP gas, not
provided)
• electric drill with 3/16” masonry drill bit
Note: Install optional HRC Series receiver
and hand-held remote control kit (see Ac-
cessories, page 37) before installing gas log
heater. See installation instructions included
with the kit.
1. Apply pipe joint sealant lightly to male
threads of the 1/2 NPT side of gas tting
elbow (provided) and connect to inlet
side of gas control. Remove gas tting
from exible gas hose (provided) before
connecting to elbow (see Figure 11).
2. Position heater base assembly in re-
place.
3. Mark screw locations through holes in
front panel of base (see Figure 12). If
installing in a brick-bottom replace, mark
screw locations in mortar joint of bricks.
4. Remove heater base from replace.
5. Drill holes at marked locations using 3/16"
drill bit.
6. Attach base, through holes in front panel
of base, to replace oor using masonry
screws provided in hardware package (see
Figure 12).
7. Connect to gas supply. See Connecting
To Gas Supply.
Figure 11 - Attaching Flexible Gas Hose
to Heater Gas Regulator
Gas Control
Flexible Gas Hose
(Provided with VGC
Series Models Only)
(Install if allowed
by local codes)
Figure 12 - Attaching Base to Fireplace
Floor
Masonry Screw
CONNECTING TO GAS SUppLY
-
CAUTION: Never connect
-
WARNING: Never connect
Elbow, 1/2 NPT x
3/8 Flare
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Pipe Cap Tee
Nipple Joint
Installation Items Needed
Before installing heater, make sure you have
the items listed below.
• external regulator (supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• test gauge connection *
• sediment trap
• tee joint
• pipe wrench
• approved exible gas line with gas con-
nector (if allowed by local codes) (not
provided)
* A CSA design-certied equipment shutoff
valve with 1/8" NPT tap is an acceptable al-
ternative to test gauge connection. Purchase
the optional CSA design-certied equipment
shutoff valve from your dealer. See Acces-
sories, page 37.
For propane/LP units, the installer must
supply an external regulator. The external
regulator will reduce incoming gas pressure.
You must reduce incoming gas pressure to
between 11" and 14" of water. If you do not re-
duce incoming gas pressure, heater regulator
damage could occur. Install external regulator
with the vent pointing down as shown in Figure
13. Pointing the vent down protects it from
freezing rain or sleet.
CAUTION: Use only new,
-
Installation must include an equipment shutoff
valve, union and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from heater (see
Figure 14).
IMPORTANT: Install equipment shutoff valve
in an accessible location. The equipment
shutoff valve is for turning on or shutting off
the gas to the appliance.
Propane/LP
Supply Tank External
Regulator
with Vent
Pointing
Down
Figure 13 - External Regulator With Vent
Pointing Down
INSTALLATION
Continued
Check your building codes for any special
requirements for locating equipment shutoff
valve to replaces.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could
result in clogged heater valves.
* Purchase the optional CSA design-certied
equipment shutoff valve from your dealer.
See Accessories, page 37.
**Minimum inlet pressure for purpose of input
adjustment.
Figure 14 - Gas Connection (Remote-
Ready Models Only)
Gas
Control
3" Minimum
Sediment Trap
CSA Design-Certied
Equipment Shutoff Valve
With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if
allowed by local
codes)
pROpANE/Lp
From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
NATURAL
From Gas
Meter
(5" W.C.**
to 10.5"
W.C.
Pressure)
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119162-01H 15
INSTALLATION
Continued
We recommend that you install a sediment
trap in supply line as shown in Figure 14, page
14. Locate sediment trap where it is within
reach for cleaning. Install in piping system
between fuel supply and heater. Locate sedi-
ment trap where trapped matter is not likely
to freeze. A sediment trap traps moisture and
contaminants. This keeps them from going
into heater controls. If sediment trap is not
installed or is installed wrong, heater may
not run properly.
CHECKING GAS CONNECTIONS
and connections, internal and
external to unit, for leaks after
WARNING: Never use an
-
CAUTION: Make sure exter-
-
der Connecting to Gas Supply,
pRESSURE TESTING GAS SUppLY
pIpING SYSTEM
Test pressures In Excess Of 1/2 pSIG
1. Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply piping
system. Pressures in excess of 1/2 psig
will damage heater regulator.
2. Cap off open end of gas pipe where equip-
ment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
4. Check all joints of gas supply piping system.
Apply noncorrosive leak detection uid to
all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected
ttings for leaks.
1. Close equipment shutoff valve (see Fig-
ure 15).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
3. Check all joints from gas meter to equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figure 16 or
Figure 17, page 16). Apply noncorrosive
leak detection uid to all joints. Bubbles
forming show a leak.
4. Correct all leaks at once.
Figure 15 - Equipment Shutoff Valve
Open
Closed
Equipment
Shutoff
Valve
Figure 16 - Checking Gas Joints
(Propane/LP Only)
Control Valve
Location
Propane/LP
Supply Tank
Equipment
Shutoff Valve
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www.desatech.com 119162-01H16
pRESSURE TESTING HEATER GAS
CONNECTIONS
1.
Open equipment shutoff valve (see Figure
15, page 15).
2. Open main gas valve located on or near
gas meter for natural gas or open pro-
pane/LP supply tank valve.
3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from gas meter to equip-
ment shutoff valve for natural gas or
propane/LP supply to equipment shutoff
valve for propane/LP (see Figure 16, page
16 or Figure 17). Apply noncorrosive leak
detection uid to all joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light heater (see Operation, page 22).
Check all other internal joints for leaks.
7.
Turn off heater (see To Turn Off Gas to
Appliance, page 21.
INSTALLING SWITCH
The AUTO/OFF/ON switch for this log set will
need to be installed into the small single log
accompanying this log set. This switch needs
to be installed only if remote or wall switch is
not being used.
1. Slip wires of switch
assembly through hole in center of log
(see Figure 18).
2. Snap switch as-
sembly into place.
3. Attach wires to control valve as shown in
Figure 19.
Gas Meter
Figure 17 - Checking Gas Joints (Natural
Gas Only)
Control Valve
Location
Equipment Shutoff Valve
INSTALLATION
Continued
INSTALLING OpTIONAL REMOTE
ACCESSORIES
Remote control accessories are available
separately (see Accessories, page 37).
1. If unit is already installed in replace, con-
tinue with these instructions. If unit has not
been installed in replace, go to step 6 and
continue installation of remote accessory.
WARNING: Turn off heater
2. Carefully remove logs and set aside.
3. Locate mounting screws on sides of heat-
er base assembly and remove screws. Set
screws aside for reinstallation.
4. Disconnect gas line from heater base as
shown in Figure 11, page 13.
-
5. Remove heater base from replace.
Figure 19 - Connecting Wires
Control Valve
To AUTO
Terminal
on Switch
To OFF
Terminal on
Switch
Figure 18 - Installing AUTO/OFF/ON
Switch
Switch
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119162-01H 17
INSTALLATION
Continued
Figure 20 - Installing Remote Receiver
Bracket
6. Install receiver bracket to base with phil-
lips screws provided in hardware kit as
shown in Figure 20.
7. If installed, disconnect AUTO/OFF/ON
switch wire from control valve at TPTH
and TH locations (see Figure 21).
8. Install remote receiver into receiver
bracket using pads and push button clips
provided with receiver (see Figure 20).
9. Connect wires from hardware pack (with
remote receiver bracket) to control valve
at the TPTH and TH locations as shown
in Figure 21. Connect other ends of these
wires to remote receiver wires.
Note: Make sure excess wire does not
interfere with burner or pilot.
10.
If heater was removed from replace be-
fore installation of remote accessory, see
Installing Heater Base Assembly on page
12 to reinstall heater into replace. Test gas
connection for leaks (see Checking Gas
Connections, page 15).
Figure 21 - Disconnecting Switch from
Control Valve
Figure 22 - Installing Battery in Hand-Held
Remote Control Unit
9-Volt Battery
Battery
Housing
Battery Cover
Terminal
Wires
Remote
Control
Unit
Remote
Receiver
Bracket
Electronic Ignitor
(On Base Assembly)
Push
Button
Clips
Pads
9-Volt
Battery
Battery
Clip
Terminal Wires
Switch
Control
Valve
11. If logs were removed from heater for install
remote accessory, replace logs (see In-
stalling Logs,Embers and Lava Rock).
and Hand Held Remote Control
Two 9-volt alkaline batteries (not included) are
required to operate this heater with the wireless
hand-held remote control set. One battery must
be installed in the receiver and one in the hand-
held remote control unit.
Note: Only use alkaline batteries.
1. Locate back of receiver behind receiver
bracket mounted on base assembly.
2. Locate the battery clip mounted on the
back of the receiver (see Figure 22).
3. Slide a 9-volt battery through the clip.
4. Attach the terminal wires to the battery.
Held Remote Control Unit
1. Remove battery cover on back of re-
mote control unit.
2. Attach terminal wires to the battery. Place
battery into the battery housing.
3. Replace battery cover onto remote
control unit.
-
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www.desatech.com 119162-01H18
INSTALLATION
Continued
2
34
5
6
Figure 24 - Installing Log #2
Figure 25 - Installing Logs #3 and #4
Figure 26 - Installing Logs #5 and #6
1
Figure 23 - Installing Log #1
CAUTION: After installa-
With heater set to Hi, check to
It is very important to install these logs exactly
as instructed. Do not modify logs. Only use
logs supplied with heater.
1. Place rear log (#1) on base assembly as
shown in Figure 23. Log will t over right end
of burner and rest in middle of U-burner.
2. Place middle log (#2) in front of U-burner
and against the edges of plate as shown
in Figure 24.
3. Place front left log (#3) onto pan burner
between log #2 and grate.
Place front right log (#4) onto pan burner
between log #2 and grate. Logs #3 and #4
have notched ends to t over end of pan
burner as shown in Figure 25.
4. Place right crossover log (#)5 as shown
in Figure 26. Match round peg on top of
rear log (#1) with round hole on bottom of
right crossover log (#5) and square peg
on top of middle log (#2) with square hole
on bottom of crossover log (#5).
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119162-01H 19
INSTALLATION
Continued
Figure 28 - Installing Log #7
Figure 27 - Placement of Embers
7
Ember Material
Flat Front
Burner
Ports
Ember Material
Overlapped 1/4" Figure 29 - Correct VGC and EC Log
Placement
18" Models
24" Models
30" Models
5. Place left crossover log (#6) onto rear log
(#1) and middle log (#2). Match round peg
on top of rear log (#1) with round hole
on bottom of left crossover log (#6) and
square peg on top of middle log (#2) with
square hole on bottom of left crossover
log (#6) as shown in Figure 26.
6. Add embers to front at burner. Gently
remove embers from bag using gloves or
tweezers.
Gloves or tweezers are recommended to
Separate pieces
of ember material and place on surface of
at burner as shown in Figure 27 overlap-
ping ember pieces 1/4". Apply four pieces
to front ports and 2 pieces to back ports.
Additional glowing effect can be achieved
by fraying edges of ember material.
-
WARNING: Do not use rock
7. Match round hole on bottom of center
crossover log (#7) with round peg on right
crossover log (#5). Rest front of log #7
on grate as shown in Figure 28. Center
crossover log (#7) must overlap grate and
rest against grate nger. Log must NOT
rest on burner.
8. Add lava rock and small decorative logs
around base of heater if desired. DO NOT
. Placing any material
on unit other than ember material on front
burner may result in production of carbon
monoxide or soot. Use lava rock to hide
wires from switch/log to control valve. Place
switch/log so the switch is easy to access.
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www.desatech.com 119162-01H20
Notches in bottom of log #4 will t over
ribs in logs #2 and #3.
5. Place top left log (#5) onto rear log (#1) and
front log (#3). Match round peg on bottom
of top left log (#5) with round hole in front
log (#3) and square hole in log #5 with
square peg on log #1 (see Figure 33).
6. Place top middle log (#6) onto rear log (#1)
and front log (#3). Match square peg on
bottom of log #6 with square hole on log
#4 and round hole on log #6 with peg on
log #1 (see Figure 34, page 21).
7. Place top right log (#7) onto top middle log
#6 and front log (#3) matching peg on bottom
of top right log #7 with hole on top middle
log #6 and hole in top right log #7 with peg
on front log (#3) (see Figure 34, page 21).
8. Place small front log (#8) into slot on right
bottom log (#3) as shown in Figure 35.
INSTALLATION
Continued
2
3
Figure 31 - Installing Logs #2 and #3
4
Figure 32 - Installing Log #4
5
Figure 33 - Installing Log #5
Bottom of
Log #2
Rib
It is very important to install these logs exactly
as instructed. Do not modify logs. Only use
logs supplied with heater.
1. Place rear log (#1) on base assembly as
shown in Figure 30. Log will t over right end
of burner and rest in middle of U-burner.
2. Place left bottom log (#2) onto base as-
sembly as shown in Figure 31. See detail
in drawing for contour on bottom of log.
Log will t over metal brackets and at
onto base assembly
3. Place right bottom log (#3) onto pan burner
as shown in Figure 31.
4. Place front log (#4) on top of left and
right bottom logs as shown in Figure 32.
1
Figure 30 - Installing Log #1
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This manual suits for next models
17
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