Desa VANGUARD LOGMATE FB32CB User manual

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WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
For use only with a listed gas-red unvented decorative
room heater. Not to exceed 40,000 Btu/Hr. Do not build
a wood re.
Carefully review the instructions supplied with the
decorative type unvented room heater for the minimum
replace size requirement.
Do not install an appliance in this rebox unless this
rebox meets the minimum dimensions required for
the installation.
This rebox has been tested and approved by CSA
under ANSI Z21.91 for use with any ANSI Z21.11.2 ap-
proved gas logs.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
UNVENTED (VENT-FREE) 32" LOGMATE®UNIVERSAL FIREBOX
OWNER’S MANUAL
®
Shown with optional
accessories.
MODEL FB32CB WITH CIRCULATING LOUVERS AND
MODEL FB32NCB WITH NONCIRCULATING SMOOTH FACE
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SAFETY
WARNING: Improper instal-
lation, adjustment, alteration,
service or maintenance can
cause injury or property damage.
Refer to this manual for correct
installation and operational
procedures. For assistance or
additional information consult
a qualified installer, service
agency or the gas supplier.
This appliance may be installed
in an aftermarket,* permanently
located, manufactured (mobile)
home, where not prohibited by
local codes.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
WARNING: This product
contains and/or generates
chemicals known to the State
of California to cause cancer or
birth defects or other reproduc-
tive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, op-
erate or service this rebox.
Improper use of this rebox can
cause serious injury or deatah
from burns, re, explosion, elec-
trical shock or carbon monoxide
poisoning.
WARNING: Any change to
this rebox or its controls can
be dangerous.
WARNING: Do not allow fans
to blow directly into the rebox.
Avoid any drafts that alter burner
ame patterns. Ceiling fans can
create drafts that alter burner
ame patterns. Altered burner
patterns can cause sooting.
WARNING: Do not use a blow-
er insert, hood, heat exchanger
insert or other accessory not ap-
proved for use with this heater.
Use only the provided hood or
GA6096 polished brass hood
accessory (see Accessories on
page 19).
Due to high temperatures, the
rebox should be located out of
trafc and away from furniture
and draperies.
Do not place clothing or other
ammable material on or near
rebox. Never place any objects
on the rebox or logs.
Carefully supervise young chil-
dren when they are in the room
with rebox.
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 3
Unpacking............................................................ 4
Product Specications......................................... 4
Product Features................................................. 5
Locating Firebox.................................................. 5
Air for Combustion and Ventilation ...................... 5
Installation ........................................................... 7
Parts .................................................................. 14
Replacement Parts............................................ 18
Technical Service............................................... 18
Accessories ....................................................... 19
Warranty ..............................................Back Cover
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Firebox front and screen become
very hot when running rebox.
Keep children and adults away
from hot surfaces to avoid burns
or clothing ignition. Firebox will
remain hot for a time after shut-
down. Allow surfaces to cool
before touching.
You must operate this replace
with the provided replace screen
(closed) and hood in place. Make
sure these parts are in place before
running rebox. This rebox has
been tested and approved with and
without the brick liner. If the liner
is removed, the model number re-
verts to the NL (non-lined) series.
Keep the rebox area clear and
free from combustible materials,
gasoline and other ammable
vapors and liquids.
1. This rebox shall not be installed in a
bedroom or bathroom.
2. Never install the rebox
• in a recreational vehicle
• where curtains, furniture, clothing or
other ammable objects are less than
36" from the front and 42" from the top of
rebox. For side clearances see Figure
6, page 8
• in high trafc areas
• in windy or drafty areas
3. Do not use this rebox as a wood-burning
replace. Use only decorative unvented
room heaters (log sets).
4. Do not add extra logs or ornaments such
as pine cones, vermiculite or rock wool.
Using these added items can cause
sooting.
5. Vent-free gas log heaters installed in these
reboxes require fresh air ventilation to
run properly. See Air for Combustion and
Ventilation, page 5.
6. Do not run rebox
• where ammable liquids or vapors are
used or stored
• under dusty conditions
7. Do not use this rebox to cook food or
burn paper or other objects.
8. Turn rebox off and let cool before servic-
ing. Only a qualied service person should
service and repair rebox.
9. Operating vent-free log sets in a rebox
above elevations of 4,500 feet could
cause pilot outage.
10. Do not use the rebox if it has been un-
der water due to the shock hazard that
could result with the blower accessary (if
installed) in place.
11. Provide adequate clearances around air
openings.
SAFETY
Continued
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*. Firebox must be electri-
cally grounded in accordance with the National
Electrical Code, ANSI/NFPA70 (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
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.
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12
1
/
2
"
1
1
/
2
"
9
3
/
4
"
4
5
/
8
"
2
1
/
2
"
6"
32
3
/
16
"
33
1 1
/
16
"
2
1
/
4
"
UNPACKING
Figure 2 - Firebox Side View
Gas Line
Access
Figure 1 - Firebox Front View
Electrical
Access Hole
Electrical
Access Hole
with Bushing
22
1
/
2
"
16
1 1
/
16
"13
1
/
4
"*
14
1
/
4
"*
31
5
/
8
"
34
3
/
8
"
35
5
/
8
"
19
1
/
4
"
35 1/16"
31 3/4"
16 1/4"
2 3/4"
2 3/4"
19 3/8"
6 3/8"
Built-in Nailing
Flanges
Louvers (Model
FB32CB Only)
Figure 3 - Firebox Top View
*Note: 14 1/4" is total rebox
cavity depth including brick
liner. 13 1/4" is depth of at
oor including brick liner.
Standoffs (Model
FB32NCB Only) Standoffs (Models FB32NCB Only)
1. With utility knife, cut the carton all the way
around above the staples on the bottom
tray. Lift the carton off the rebox. 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. Check carton contents for the following:
• Screen assembly (2)
• Screen support rod (2)
• Hood
• Hardware and parts bag containing the
following:
• Owner’s Manual
• Black #10 x 3/8" Phillips screws (2)
• Zinc #10 x 1/2" shouldered hex screws (3)
• Black #10 x 5/8" shouldered hex
screws (2)
If any items are missing, inform dealer
where you bought the rebox.
3. Check heater for any shipping damage.
If heater is damaged call DESA Heat-
ing, LLC at 1-866-672-6040 for replace-
ment parts before returning to dealer.
PRODUCT SPECIFICATIONS
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PRODUCT FEATURES
2. Everything needed to complete installation.
3. These models CANNOT be installed in a
bedroom or bathroom.
4. Proper air for combustion and ventilation
(see Air for Combustion and Ventilation).
LOCATING FIREBOX
Plan where you will install the rebox. This will
save time and money later when you install
the rebox. Before installation, consider the
following:
1. Where rebox will be located. Allow for
wall and ceiling clearances (see Installa-
tion Clearances, page 8).
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a room or space
unless the required volume of in-
door combustion air is provided
by the method described in the
National Fuel Gas Code, ANSI
Z223.1/NFPA54, the International
Fuel Gas Code, or applicable lo-
cal codes. Read 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 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, reboxes, 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.
PROVIDING ADEQUATE VENTILATION
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 5 through 7 will help
you classify your space and provide adequate
ventilation.
Unusually Tight Construction
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.
Unusually tight construction is dened as
construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of one
perm (6x10-11 kg per pa-sec-m2) or less
with openings gasketed or sealed and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to
areas such as joints around window
and door frames, between sole plates
and oors, between wall-ceiling joints,
between wall panels, at penetrations
for 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 7.
OPERATION
This rebox is designed for use with approved
ANSI Z21.1.2 decorative type unvented room
heaters. (Physical size limitations apply. Refer
to minimum rebox requirements supplied
with log heater.) It requires no outside vent-
ing or chimney making installation easy and
inexpensive. When used without the blower,
the rebox requires no electricity making it
ideal for emergency backup heat.
BLOWER ACCESSORY
The FB32CB rebox will accept the GA3750A
accessory. The variable blower allows you to
select the fan speed you desire. The blower
circulates heated air from the rebox into the
room. Use of blower is optional.
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If your home does not meet all of the three pre-
vious criteria, proceed to Determining Fresh-
Air Flow For Firebox Location, page 6.
Conned Space and Unconned Space
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/hr (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/hr (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 unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Conned or
Unconned Space
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 heater plus any adjoining rooms with
doorless passageways or ventilation grills
between the rooms.
1. Determine the volume of the space (length
x width x height).
Length x Width x Height =__________ 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 deter-
mine 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 appli-
ances in the space.
Vent-free heater ________ 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 appli-
ances. Direct-vent draws combustion
air from the outdoors and vents to the
outdoors.
Example:
Gas water heater ________ Btu/Hr
Vent-free heater + _______ 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: 51,200 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 conned
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 unconned space, remove
door to adjoining room or add ventilation
grills between rooms. See Ventilation Air
From Inside Building, page 7.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 7.
C. Install a lower Btu/Hr heater, 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.
AIR FOR COMBUSTION AND VENTILATION
Continued
40,000
39,000
79,000
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WARNING:If theareainwhich
the heater may be operated does
not meet the required volume for
indoor combustion air, combus-
tion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code,ANSI Z223.1/NFPA54,
the International Fuel Gas Code,
or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" of the
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
Ventilation
Grills Into
Adjoining
Room,
Option 1
12"
12"
Outlet
Air
V e ntilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air V e ntilated
Crawl Space
T o
Crawl
Space
T o Attic
Figure 5 - Ventilation Air from Outdoors
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options 1
and 2, Figure 4). You can also remove door into
adjoining room (see option 3, Figure 4). Fol-
low the National Fuel Gas Code ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
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 thermo-
stat-controlled power vent. Heated air entering
the attic will activate the power vent.
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your pri-
mary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualied ser-
vice person must install rebox.
Follow all local codes.
WARNING: Never install rebox
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing
or other ammable objects are less
than 36" from the front and 42"
from the top of rebox. For side
clearances see Figure 6, page 8
• in high trafc areas
• in windy or drafty areas
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IMPORTANT: Vent-free gas log heaters add
moisture to the air. Although this is benecial,
installing rebox in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See Air for Combustion
and Ventilation, page 5.
IMPORTANT: Make sure the rebox is level. If
rebox is not level, log set will not work properly.
Note: Your Vanguard rebox 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 rebox, except where standoff
spacers are integrally attached. If standoff
spacers are attached to your rebox, 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
Firebox Installation, page 12).
INSTALLATION CLEARANCES
WARNING: Maintain the
minimum clearances. If you can,
provide greater clearances from
oor, ceiling and adjoining wall.
Carefully follow the instructions below. This
will ensure safe installation.
Minimum Clearances For Side Combus-
tible Material, Side Wall and Ceiling
A. Clearances from the side of the replace
cabinet to any combustible material and
wall should follow diagram in Figure 6.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This com-
bustible material must be 4" from the side
of the replace opening (see Figure 6).
Figure 6 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
Example
*
Figure 7 - Minimum Mantel Clearances
for Built-In Installation
Supplied
Firebox Hood
Must Be Used
at All Times
Wire-mesh
Screen
Firebox
Mantel Shelf
13" 16" 19" 21"
19" 20" 21" 22"
For
FB32NCB
Series
noncirculating
smooth face
models
2 1/2"
6"
8"
10"
For FB32CB
Series
circulating
louvered
models
Note:
A
ll vertical measurements
are from top of fireplace
opening to bottom of mantel
shelf. All measurements
are in inches.
Facing material (above
firebox) may be of
combustible material,
including decorative
mantel ornaments.
INSTALLATION
Continued
B. Clearances from the top of the replace
opening to the ceiling should not be less
than 42".
MINIMUM CLEARANCE TO
COMBUSTIBLE MATERIALS
Top 42", Left and Right Sides 16",
Bottom and Rear 0", Front 36"
Mantel Clearances for Built-In
Installation
If placing custom mantel above built-in re-
box, you must meet the minimum allowable
clearance between mantel shelf and top of
rebox opening shown in Figure 7. These are
the minimum allowable mantel clearances
for a safe installation. Use larger clearances
wherever possible to minimize the heating of
objects and materials placed on the mantel.
CAUTION: Close screens
before operation of vent-free
gas log heater. Do not allow the
heater to touch or extend beyond
the replace screen.
If your installation does not meet the minimum
clearances in Figure 7, you must:
• raise mantel to an acceptable height,
OR
• remove mantel.
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INSTALLATION
Continued
INSTALLING BLOWER ACCESSORY
(Model FB32CB Only)
You may install blower accessory GA3750A
with conventional installation (below) or with
built-in installation (page 11).
Conventional Installation of Blower
Accessory
NOTICE: If a log set is currently
installed in the rebox, disconnect
log set from gas supply and remove
from rebox. Contact a qualied
service person to do this.
1. Remove rebox bottom:
a. Remove 4 screws that secure bottom
of rebox (see Figure 8).
b. Carefully raise and remove rebox bot-
tom from rebox.
WARNING: If there is a duplex
electrical outlet installed in the
right side of the bottom of the
replace base area, be sure that
the electrical power to the outlet is
turned off before proceeding with
blower installation. Failure to do
this may result in serious injury.
2. Place blower against lower rear wall of
rebox wrapper with exhaust port directed
upward. Align holes in top mounting tabs
of blower with holes in wall of wrapper
(see Figure 9). Using 2 screws provided,
mount blower and tighten screws se-
curely.
Figure 8 - Removing Screws from
Firebox Bottom
Screws
3. Be certain that all wire terminals are
securely attached to terminals on blower
motor and that the screw retaining green
ground wire is tight.
4. Locate plastic hole plug installed in the
3/8" diameter opening in the lower right
side of rebox front panel (see Figure 9).
Remove plastic plug and discard.
5. Place speed control against inner wall of
front panel, pushing plastic control shaft
forward through opening (see Figure 10).
6. While supporting speed control, secure
control shaft with lock nut by pushing and
turning lock nut with pliers clockwise until
it is tight against front panel. Place control
knob provided on shaft (see Figure 10).
Screws
Blower
Lower Rear
Wall of Firebox
Wrapper
Floor
Supports
Top
Mounting
Tab
Exhaust
Port
Plastic
Hole Plug
Figure 9 - Mounting Blower to Firebox
Figure 10 - Attaching Speed Control
Speed Control
Control Knob
Lock Nut
Control Shaft
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7. Plug in blower power cord.
a. If your rebox is installed as a freestand-
ing unit, determine whether power cord
will exit left side or right side of rebox.
Install 1 plastic bushing provided into
the 1 1/2" hole in the oor support on the
exit side. Install second plastic bushing
(provided) into the 1 1/2" hole in outer
casing through which power cord will
exit (see Figure 11). Route power cord
through both plastic bushings and plug
power cord into a 3-prong grounded
wall receptacle near rebox.
b. If your rebox installation is recessed
and/or pre-wired, see Built-In Installa-
tion of Blower Accessory, page 11.
8. Turn on power to duplex outlet if previ-
ously turned off per warning in step 1.
9. Check to make sure that power cord is
completely clear of blower wheel and
that there are no other foreign objects in
blower wheel. Turn blower on and check
for operation.
WARNING: Never touch the
blower wheel while in operation.
10. Peel off backing paper and stick supplied
wiring diagram decal on rebox bottom
approximately 12" in front of blower.
11. Replace bottom of rebox. Note: Make sure
back of rebox bottom slides under rear of
rebrick (lift rebrick up if necessary.)
12. Reattach rebox bottom using 4 screws
removed in step 1. Note: Discard remain-
ing hardware items.
13. Install log set heater according to instal-
lation instructions supplied with heater.
INSTALLATION
Continued
NOTICE: A qualied electrician
must connect electrical wiring to
duplex outlet for built-in instal-
lation. Follow all local codes. In
absence of local codes follow
The National Electrical Code
ANSI/NFPA 70.
Built-In Installation of Blower Accessory
1. Before replacing bottom of rebox, re-
move screw holding duplex outlet to sup-
port bracket in bottom of rebox. Remove
duplex outlet.
2. Clamp electrical cable into rebox through
smallest hole in outer casing using strain
relief provided.
3. Route wires from electrical box through
hole in side of heater and hole in support
bracket (see Figure 12).
4. Connect wires from the electrical box to
duplex outlet. Match wire colors to those
indicated on duplex outlet. Be sure to
connect ground wire.
5. Replace duplex outlet with screw.
6. Plug blower power cord into duplex outlet.
7. Replace bottom of rebox.
Figure 11 - Installing Plastic Bushing for
Power Cord
Plastic
Bushing
Figure 12 - Routing Blower Accessory
Power Cord for Built-In Installation
Screw
Blower
Power Cord
Support
Bracket
Cables From
Electrical Source
Duplex
Outlet
Blower
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