Desa VSGF36NRC Quick start guide

For more information, visit www.desatech.com
WARNING: If the information in this manual is not


         


— WHAT TO DO IF YOU SMELL GAS
 
 

 

 

 -

MODELS VSGF36NRC AND VSGF36PRC
UNVENTED (VENT-FREE) GAS FIREPLACE SYSTEM
OWNER’S OPERATION AND INSTALLATION MANUAL



www.desatech.com 121082-01G
2
SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Local Codes......................................................... 4
Product Identication........................................... 5
Unpacking............................................................ 5
Product Features................................................. 5
Locating Firebox.................................................. 6
Product Specications......................................... 6
Air For Combustion and Ventilation ..................... 7
Installation ........................................................... 9
Operation........................................................... 20
Inspecting Burners ............................................ 24
Cleaning and Maintenance................................ 25
Troubleshooting................................................. 26
Specications .................................................... 30
Technical Service............................................... 30
Service Hints ..................................................... 30
Wiring Diagram.................................................. 30
Replacement Parts............................................ 31
Accessories ....................................................... 31
Parts .................................................................. 32
Warranty ..............................................Back Cover
 
 
alteration, service or main-
   

to this manual for correct
-
   -
tance or additional infor-

  

WARNING: This is an
  -
    
from the room in which


and ventilation air must
Air
for Combustion and Ven-
tilation

WARNING: For use only



   
   
CSA International under
   
  


-
stalled in an aftermarket*,
 
 
-


     
   
   
   




www.desatech.com
121082-01G 3
WARNING: Do not allow fans
    


    
   

    



 
    


    -
-

away from hot surfaces to avoid
-



  
children when they are in the
    -
   

-
    


    
     -
     

 

   

SAFETY
Continued
-

known to the state of California




   
    

    
   
   



 Early signs of
carbon monoxide poisoning resemble the u,
with headaches, dizziness or nausea. If you
have these signs, heater may not be working
properly.  Have heater
serviced. Some people are more affected by
carbon monoxide than others. These include
pregnant women, people with heart or lung
disease or anemia, those under the inuence
of alcohol and those at high altitudes.
 Natural and
propane/LP gases are odorless. An odor-mak-
ing agent is added to 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 heater.
    
this heater or its controls can

WARNING: Do not use a
   
-


www.desatech.com 121082-01G
4
1. This appliance is only for use with type of
gas indicated on 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 gas supplier’s
instructions
• if you cannot reach your gas supplier,
call the re department
4. This replace shall not be installed in a
bedroom or bathroom.
5. Do not use this replace as a wood-burn-
ing replace. Use only logs provided with
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 control
area of replace.
7. To prevent creation of soot, follow in-
structions in Cleaning and Maintenance,
page 25.
8. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off.
If heated, vapors from these products may
create a white powder residue within burner
box or on adjacent walls or furniture.
SAFETY
Continued
9. 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 enough fresh air is not available.
See Air for Combustion and Ventilation,
page 7. If replace keeps shutting off, see
Troubleshooting, page 26.
10. Do not run replace
• where ammable liquids or vapors are
used or stored
• under dusty conditions
11. Do not use this replace to cook food or
burn paper or other objects.
12. Do not use replace if any part has been
exposed to or under water. Immediately
call a qualied service technician to in-
spect replace and to replace any part of
control system and any gas control which
has been under water.
13. Do not operate fireplace if any log is
broken. Do not operate replace if a log
is chipped (dime-sized or larger).
14. Turn fireplace off and let cool before
servicing. Only a qualied service person
should service and repair replace.
15. Operating replace above elevations of
4,500 feet could cause pilot outage.
16. To prevent performance problems in
propane/LP units, do not use propane/LP
fuel tanks of less than 100 lbs. capacity
(propane/LP units only).
17. Provide adequate clearances around air
openings .
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.
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
Note: Where listed vented decorative logs are re-
quired, thermostat operation is not permitted.

www.desatech.com
121082-01G 5
Remote
Control
PRODUCT IDENTIFICATION
Figure 1 - Log Base Assembly
Log Set
Base
Assembly
Front
Burner
Rear
Burner Top Louver
Assembly
Fireplace
Hood
Bottom Louver Assembly
Screen
Assembly
Top Outer Casing
Figure 2 - Fireplace
UNPACKING
CAUTION: Do not remove
    



1. With utility knife, cut carton all the way
around above staples on bottom tray. Lift
carton off of heater. Remove packing.
Note: Hood is located on top of replace
in a carton.
2. Locate one screw above top left corner
of replace screen. Remove and discard
screw. Lift replace screen up and pull out
to remove.
3. Remove protective packaging applied to
logs, log base assembly and replace.
4. 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.
PRODUCT FEATURES

This vent-free replace is clean burning. It re-
quires no outside venting. There is no heat loss
out a vent or up a chimney. Heat is generated
by both realistic ames and glowing embers.
When used without blower, replace requires
no electricity making it ideal for emergency
backup heat.
SAFETY DEVICE
This replace has a pilot with an Oxygen
Depletion Sensing (ODS) safety shutoff sys-
tem. ODS/pilot is a required feature for vent-
free room heaters. ODS/pilot system shuts off
replace if there is not enough fresh air.
IGNITION SYSTEM
This replace has an electronic ignitor to light
heater fuel supply.
REMOTE CONTROL
This replace is equipped with a thermostat
remote control. Remote can also be used
manually. Use this remote to control tempera-
ture and ame height.

www.desatech.com 121082-01G
6
LOCATING FIREBOX
Figure 3 - Firebox Dimensions
Firebox Top View
Front View
Right Side View
Left Side View

Plan where you will install rebox. This will
save time and money later when you install
your rebox. Before installation, consider the
following:
1. Where rebox will be located. Allow for
wall and ceiling clearances (see Installa-
tion Clearances, page 10).
2. Everything needed to complete installation.
3. These models CANNOT be installed in
a bedroom unless maximum Btu rating
of installed vent-free log set is less than
10,000 Btu/hr.
4. Proper air for combustion and ventilation
(page 7).
PRODUCT SPECIFICATIONS

www.desatech.com
121082-01G 7
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
      
-
    
 -
National Fuel Gas
Code, ANSI Z223.1/NFPA 54, the
International Fuel Gas Code, or


     
  

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 cold air out and warm air in. During heat-
ing 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, reboxes, clothes dryers and
fuel burning appliances draw air from house
to operate. You must provide adequate fresh
air for these appliances. This will insure proper
venting of vented fuel-burning appliances.

VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation.
All spaces in homes fall into one of these 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 combustion
and ventilation. However, in buildings of un-
usually tight construction, you must provide
additional fresh air.

construction where:
 -
    
      
-112

and
 
and
      
     


    


If your home meets all of the three criteria

  Ventilation Air From Outdoors,

If your home does not meet all of the three
    Determining
Fresh-Air Flow for Heater Location

The National Fuel Gas Code, ANSI Z223.1/
NFPA 54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu per hour (4.8 m3per kw) of the ag-
gregate input rating of all appliances installed
in that space and an unconned space as a
space whose volume is not less than 50 cubic
feet per 1,000 Btu per hour (4.8 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-
conned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.

www.desatech.com 121082-01G
8
AIR FOR COMBUSTION AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW
FOR HEATER 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 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 22 ft. (length) x 18 ft.
(width) x 8 ft. (ceiling height) = 3168 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 sup-
port.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 3168 cu. ft. (volume of space) x 20
= 63,360 (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)
Example: 63,360 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 9.
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


-


   National Fuel
Gas Code,ANSI Z223.1/NFPA 54,
the International Fuel Gas Code,

40,000
39,000
79,000

www.desatech.com
121082-01G 9
VENTILATION AIR

This fresh air would come from an adjoin-
ing unconned space. When ventilating to
an adjoining unconned space, you must
provide two permanent openings: one within
12" of ceiling and one within 12" of oor on
wall connecting two spaces (see options 1
and 2, Figure 4). You can also remove door
into adjoining room (see option 3, Figure 3).
Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
AIR FOR COMBUSTION AND VENTILATION
Continued
Ventilation Air From Outdoors
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 5 - Ventilation Air from Outdoors
Figure 4 - Ventilation Air from Inside
Building
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"
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
INSTALLATION
NOTICE: This heater is intended
    


     -









   

WARNING: Never install the

 
 
   
   




 
 

www.desatech.com 121082-01G
10
-
    
currents move heat to wall sur-

     
   
   
     
smoke, aromatic candles, clean-



Note: Your replace is designed to be used in
zero clearance installations. Wall or framing ma-
terial can be placed directly against any exterior
surface on the rear, sides or top of your replace,
except where standoff spacers are integrally at-
tached. If standoff spacers are attached to your
replace, these spacers can be placed directly
against wall or framing materials.
Use dimensions shown for rough openings
to create easiest installation. See Built-In
Firebox Installation, page 11.
IMPORTANT: Vent-free heaters add moisture
to air. Although this is benecial, installing
replace in rooms without enough ventila-
tion air may cause mildew to form from too
much moisture. See Air for Combustion and
Ventilation, page 7.
IMPORTANT: Make sure replace is level.
If replace is not level, log set will not work
properly.

Use correct gas type (natural or propane/
LP) for your replace. If your gas supply
is not correct, do not install replace. Call
dealer where you bought replace for proper
type replace.



-


INSTALLATION
Continued
INSTALLATION CLEARANCES
WARNING: Maintain the



Carefully follow the instructions below. This
will ensure safe installation.


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 cabinet (see Figure 6).
B. Clearances from top of rebox opening to
ceiling should not be less than 42".
C. When rebox is installed on carpeting or
other combustible material, other than
wood ooring, rebox should be installed
on a metal or wood panel extending full
width and depth of the enclosure.
D. Clearances from bottom of rebox to oor
is 0".
These reboxes can be installed as freestand-
ing units against a wall with approved, optional
cabinet mantels (see Accessories, page 31)
or as a built-in unit. Clearances are the same
for either installation method.
CAUTION: Do not install
    

*Minimum 16" from Side Wall
*
Example
Figure 6 - Minimum Clearance for
Combustible to Wall