Vanguard SBJ18VNA User manual

UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
MODELS
SBJ18VNA, SBJ18VPA
SBJ24VNA AND SBJ24VPA

MODELS
SMA18VNA, SMA18VPA
SMA24VNA AND SMA24VPA
For more information, visit www.desatech.com



         


— WHAT TO DO IF YOU SMELL GAS
 
 

 

 

 -

      

O-TL REPORT
# 258-L-04-5

www.desatech.com 114744-01F2
SAFETy
  
 
  
  
   -

  
  -
   
 
   -


   -
   

   -
    
-
   -

   
  
   
   
  
-
     

    



  
  -

Refer to Air for Combustion
and Ventilation

-

 
 
-



-




   
  
    

-

TABLE OF CONTENTS
Safety .................................................................. 2
Product Identication........................................... 5
Local Codes......................................................... 5
Unpacking............................................................ 5
Optional Remote Control Accessories................. 5
Product Features................................................. 6
Air For Combustion and Ventilation..................... 6
Installation ........................................................... 9
Operation........................................................... 16
Inspecting Burner .............................................. 20
Wiring Diagram.................................................. 20
Cleaning and Maintenance................................ 21
Troubleshooting................................................. 22
Specications .................................................... 26
Replacement Parts............................................ 26
Service Hints ..................................................... 26
Technical Service............................................... 26
Accessories ....................................................... 27
Parts .................................................................. 28
Warranty ..............................................Back Cover

www.desatech.com
114744-01F 3
   


 
-

   



 Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, the log set may not be work-
ing properly.  Have log
set 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
Propane/LP gas 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 log set.
    


-






-


SAFETy
Continued




    
   



    



  
    





     
   
-
    

-


  



    

    


www.desatech.com 114744-01F4
    
-
-




    
-


1. This appliance, as supplied, 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 the 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 bedroom
or bathroom, unless installed as a vented
appliance. See Installing Damper Clamp
Accessory for Vented Operation, page 12.
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 qualied chimney cleaner.
Creosote will ignite if highly heated. Inspect
chimney ue for damage. If damaged,
repair ue before operating appliance.
6. If replace has glass doors, never operate
with glass doors closed, If you operate
heater with doors closed, heat buildup
inside replace will cause glass to burst.
Also if replace opening has vents at the
bottom, you must open the vents before
operating heater.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 21.
SAFETy
Continued
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 the burn-
er box or on adjacent walls and furniture.
9. 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 Combustion and Ventilation page
6. If the heater keeps shutting off, see
Troubleshooting, page 22.
10. Do not run heater
• where ammable liquids or vapors are
used or stored
• under dusty conditions
11. Do not use heater to cook food or burn
paper or other objects.
12. Do not use heater if any part has been ex-
posed to or under water. Immediately call
a qualied 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.
13. Do not operate heater if any log is broken.
Do not operate heater if a log is chipped
(dime-size or larger).
14. Turn heater off and let cool before servic-
ing, installing or repairing. Make sure the
selector switch is in the OFF position. Only
a qualied service person should install,
service or repair heater.
15. Make sure the selector switch is in the
OFF position when you are away from
home for long periods of time.
16. Remote-ready heaters shall not be con-
nected to any external electrical source.
17. Operating heater above elevations of
4,500 feet may cause pilot outage.
18. To prevent performance problems, do not
use propane/LP tank(s) of less than 100
lb. capacity (propane/LP units only).
19. Provide adequate clearances around air
openings.


     




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114744-01F 5
PRODUCT IDENTIFICATION
Figure 1 - Product Identication
Log Set
Chassis
Assembly
LOCAL CODES
Piezo
Ignitor
Control
Knob
Flame
Adjustment
Knob
Install and use the 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.
Battery march park
Quincy, MA 02269
Note: Where listed vented decorative logs are
required, thermostat operations is not permit-
ted. The installation of appliances designed
for manufactured home (U.S. only) or mobile
home installation must conform with the Stan-
dard CAN/CSA Z240 MH, Standard, Title 24
CFR, Part 3280, in the United States or when
such a standard is not applicable, ANSI/NCS-
BCS A225.1/NFPA 501A Manufactured Home
Installations Standard.
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

     -

   

1. Remove log set assembly from carton.
Note: Do not pick up assembly by logs.
This could damage the unit. Always
handle assembly by grate.
2. Remove all protective packaging applied
to log set for shipment.
3. Check heater for any shipping damage. If
heater is damaged call DESA Heating, LLC
at 1-866-672-6040 for replacement parts
before returning to dealer.
OPTIONAL REMOTE CONTROL ACCESSORIES
There are four optional remote controls that
can be purchased separately:
• Wall switch
• Hand-held ON/OFF remote
• Wall thermostat
• Hand-held thermostat remote
See Accessories, page 27.
The wall thermostat or hand-held thermostat
may not be used where vented decorative
listings is required.

www.desatech.com 114744-01F6
PRODUCT FEATURES
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.
SAFETY DEVICE
This heater has a pilot with an Oxygen Deple-
tion Sensing (ODS) safety shut off 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.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system re-
quires no matches, batteries or other sources
to light heater.
AIR FOR COMBUSTION AND VENTILATION
  

    

 
National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the International
Fuel Gas Code,  
  



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 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 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.


 -
    
      
2

and
 
and
      
     


    


If your home meets all of the three criteria
above, you must provide additional fresh air.
See Ventilation Air From Outdoors, page 8.
If your home does not meet all of the three
criteria above, proceed to Determining Fresh-
Air Flow For Appliance Location, page 7.

www.desatech.com
114744-01F 7

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 m3per 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 m3per kw) of the ag-
gregate 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-
conned space.
* Adjoining rooms are communicating only if
there are odorless passageways or ventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR APPLIANCE LOCATION


Use this work sheet to determine if you have
a conned or unconned space.
 Includes the room in which you will
install appliance 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 =
(Maximum Btu/Hr the space can sup-
port)
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 appliance _______ Btu/Hr
Gas water appliance* _______ Btu/Hr
Gas furnace _______ Btu/Hr
Vented gas appliance _______ Btu/Hr
Gas replace logs _______ Btu/Hr
Other gas appliances*+ _______ Btu/Hr
Total = _______ Btu/Hr
* Do not include direct-vent gas ap-
pliances. Direct-vent draws combustion
air from the outdoors and vents to the
outdoors.
Example:
Gas water appliance _______ Btu/Hr
Vent-free appliance + _______ 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)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the previous 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, page 8.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 8.
C. Install a lower Btu/Hr appliance, 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
33,000
73,000

www.desatech.com 114744-01F8



-


   National Fuel
Gas Code,ANSI Z223.1/NFPA54,
the International Fuel Gas Code,

VENTILATION AIR

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
AIR FOR COMBUSTION AND VENTILATION
Continued
ceiling and one within 12" of the oor on the
wall connecting the two spaces (see options
1 and 2, Figure 2 on page 8). You can also
remove door into adjoining room (see option
3, Figure 2 on page 8). Follow the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, Air
for Combustion and Ventilation for required
size of ventilation grills or ducts.

Provide extra fresh air by using ventilation
grills or ducts. You must provide two per-
manent 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
Figure 2 - Ventilation Air from Inside
Building
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
Or
Remove
Door into
Adjoining
Room,
Option
3
Ve ntilation Grills
Into Adjoining Room,
Option 2
Ve ntilation
Grills Into
Adjoining
Room,
Option 1
12"
12"

www.desatech.com
114744-01F 9
INSTALLATION

    



     




-


-


    

-


    
-



    
-

   
    




   

    

-

     
   



     
    

 
   
   


 
 
   -
    
-
    

   


-



IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, 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.

www.desatech.com 114744-01F10

Use the correct gas type (natural or propane/
LP) for your unit. If your gas supply is not
correct, do not install in replace. Call dealer
where you bought the appliance for proper
type of appliance.



-


INSTALLATION AND CLEARANCES
FOR VENT FREE OPERATION
   



MINIMUM FIREPLACE CLEARANCE TO

Side Wall 16"
Ceiling 42"
Floor 5"
LOG SIZING REQUIREMENTS

Log
 Height 
Front
Width

Width
18" 17" 14" 24" 20"
24" 17" 14" 28" 22"
*Measured at 14" depth.
Allow adequate clearances for accessibility for
purposes of servicing and proper operation
Carefully follow the instructions below. This
will ensure safe installation into masonry,
UL127-listed manufactured replace or listed
vent-free rebox.


A. Clearances from side of replace cabinet
to any combustible material and wall
should follow diagram in Figure 4.
INSTALLATION
Continued
Example: The face of a mantel, bookshelf,
etc., is made of combustible material must
be 4" from side of replace to cabinet (see
Figure 4).
B. Clearances from top of replace opening
to ceiling should not be less than 42".
   -



    

-

     
Installing Damper Clamp Ac-
cessory for Vented Operation,
.



Note: If using a mantel proceed to If Using
Mantel, page 11. If not using mantel, follow
the information on this page.
You must have noncombustible material(s)
above the replace opening. Noncombus-
tible materials (such as slate, marble, tile,
etc.) Must be at least 1/2" thick. With sheet
metal, you must have noncombustible ma-
terial 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" Models Only). See Figure 5, page 11, for
minimum clearances.
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example