Desa FPVF33PRA Quick start guide

For more information, visit www.desatech.com
WARNING: If the information in this manual is not fol-


         


— WHAT TO DO IF YOU SMELL GAS
 
• Do not touch any electrical switch; do not use any

 

 

 -

      

UNVENTED (VENT-FREE) GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
VYGF33PRC, VYGF33NRC, FPVF33PRA (MILLIVOLT) AND
FPVF33NRA (MILLIVOLT)
REMOTE-READY GAS FIREPLACE SYSTEMS






www.desatech.com 113109-01C2
SAFETY INFORMATION
TABLE OF CONTENTS
Safety Information ............................................... 2
Product Identication........................................... 4
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 5
Air For Combustion And Ventilation..................... 5
Installation ........................................................... 8
Operating Fireplace........................................... 19
Inspecting Burner .............................................. 23
Cleaning and Maintenance................................ 24
Troubleshooting................................................. 25
Wiring Diagram.................................................. 29
Specications .................................................... 29
Replacement Parts............................................ 29
Technical Service............................................... 29
Service Hints ..................................................... 29
Illustrated Parts Breakdown and Parts List........ 30
Accessories ....................................................... 38
Warranty Information ...........................Back Cover
  -
-
teration, service or main-
tenance can cause in-

Refer to this manual for
correct installation and
 
For assistance or addi-
tional information con-
   


WARNING: This is an
  -
    
from the room in which


and ventilation air must
 Air
for Combustion and Ven-
tilation 

-
stalled in an aftermarket,*
 
 
-


     
   
   
   



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.

www.desatech.com
113109-01C 3
-

known to the state of California




   
    

    
   
   



 Early signs of carbon
monoxide poisoning resemble the u, with head-
aches, dizziness or nausea. If you have these signs,
the replace may not be working properly. Get
fresh air at once! Have replace serviced. Some
people are more 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-making agent is added
to these gases. The odor helps you detect a gas leak.
However, the odor added to the gas can fade. Gas
may be present even though no odor exists.
Make certain you read and understand all warnings.
Keep this manual for reference. It is your guide to
safe and proper operation of this replace.
    
this heater or its controls can

WARNING: Do not use a
   
-

SAFETY INFORMATION
Continued WARNING: Do not allow fans



    
   

    



  
    


    -
-

away from hot surfaces to avoid
-



-
dren when they are in the room

   -
   
  



    
     -
     

    
-
-


www.desatech.com 113109-01C4
O
F
F
P
I
L
O
T
O
N
H
I
L
O
SAFETY INFORMATION
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) in-
side 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 replace shall not be installed in a bed-
room or bathroom.
5. Do not use this replace as a wood-burning
replace. Use only the logs provided with the
replace.
6. Do not add extra logs or ornaments such as
pine cones, vermiculite or rock wool. Using
these added items can cause sooting. Do not
add lava rock around base. Rock and debris
could fall into the control area of replace.
7. To prevent the creation of soot, follow the
instructions in Cleaning and Maintenance,
page 24.
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 burner
box or on adjacent walls or furniture.
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 replace if enough fresh air is not
available. See Air for Combustion and Ventila-
tion, page 5. If replace keeps shutting off, see
Troubleshooting, page 25.
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 fireplace if any part has been
exposed to or under water. Immediately call
a qualied service technician to inspect the
replace and to replace any part of the control
system and any gas control which has been
under water.
13. Do not operate replace if any log is broken.
Do not operate replace if a log is chipped
(dime-sized or larger).
14. Turn replace 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.
PRODUCT
IDENTIFICATION
Figure 1 - Log Base Assembly
Piezo
Ignitor
Optional
Remote
Control
Control
Knobs
Firebox
Hood
Firebox
Support
Log Set (VYGF shown)
Remote Selector
Switch (Optional)
Top Outer
Casing
Blower Assembly
(Optional)
Screen
Assembly
Figure 2 - Fireplace
Louver

www.desatech.com
113109-01C 5
LOCAL CODES
Install and use replace with care. Follow all local
codes. In the absence of local codes, use the lat-
est 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
UNPACKING
CAUTION: Do not remove the




1. With utility knife, cut the carton all the way
around above the staples on the bottom tray.
Lift the carton off the heater. 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. Locate two screws above top corners of the
replace screen. Remove and discard these
screws. Lift replace screen up and pull out
to remove.
3. Remove protective packaging applied to logs,
log base assembly and replace.
4. Remove replace hood from carton insert.
5. Check all items for any shipping damage. If
damaged, promptly inform dealer where you
bought replace.
PRODUCT FEATURES
OPERATION
This vent-free replace 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. When used without the blower, the
replace requires no electricity making it ideal for
emergency backup heat. This heater is designed
for vent-free operation. It has been tested and ap-
proved to ANSI Z21.11.2 standard for unvented
heaters. State and local codes in some areas pro-
hibit the use of vent-free heaters.
SAFETY DEVICE
This replace has a pilot with an Oxygen Depletion
Sensing (ODS) safety shutoff system. The ODS/
pilot is a required feature for vent-free room heat-
ers. The ODS/pilot system shuts off the replace
if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This replace has a piezo ignitor. This system
requires no matches, batteries or other sources to
light replace.
OPTIONAL REMOTE CONTROL UNITS
There are four optional remote controls that can be
purchased separately for this log heater:
• wall switch
• wall thermostat
• hand-held ON/OFF remote
• hand-held thermostat remote
See Accessories, page 38.
OPTIONAL BLOWER ASSEMBLY


This replace accepts an optional blower assembly
(not included). The GA3700T Series blower oper-
ates thermostatically and features a variable speed
control. The GA3700 Series blower operates man-
ually and also features a variable speed control.
The blower circulates heated air from the replace
into the room. See Accessories, page 38.
AIR FOR COMBUSTION
AND VENTILATION
WARNING: This heater shall
     
-
-





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.

www.desatech.com 113109-01C6
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, 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, Section 5.3,
Air for Combustion and Ventilation.
All spaces in homes fall into one of the three fol-
lowing 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.

The air that leaks around doors and windows may
provide enough fresh air for combustion and ven-
tilation. However, in buildings of unusually tight
construction, you must provide additional fresh air.

construction where:
 -
    
      
2

and
 
and
      
     


    


If your home meets all of these three 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 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 per hour
(4.8 m3 per kw) of the aggregate input rating of
all appliances installed in that space. Rooms com-
municating 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


Use this work sheet to determine if you have a
conned or unconned space.
Includes the room in which you will install
replace plus any adjoining rooms with doorless pas-
sageways 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. Di-
rect-vent draws combustion air from the outdoors
and vents to the outdoors.
AIR FOR COMBUSTION
AND VENTILATION
Continued

www.desatech.com
113109-01C 7
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: 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 conned space
because the actual Btu/Hr used is more than the maxi-
mum 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 adjoin-
ing room. If the extra space provides an unconned
space, remove door to adjoining room or add
ventilation grills between rooms. See Ventilation
Air From Inside Building.
B. Vent room directly to the outdoors. See Ventila-
tion Air From Outdoors.
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
    
     
     
    



the NationalFuel Gas Code,ANSI
Z223.1/NFPA 54 Section 5.3 or

VENTILATION AIR

This fresh air would come from an adjoining un-
conned space. When ventilating to an adjoining
unconned space, you must provide two perma-
nent openings: one within 12" of the ceiling and
one within 12" of the oor on the wall connecting
40,000
33,000
73,000
AIR FOR COMBUSTION
AND VENTILATION
Continued
Figure 3 - 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"
the two spaces (see options 1 and 2, Figure 3). You
can also remove door into adjoining room (see
option 3, Figure 3). 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.
Figure 4 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
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 thermostat-
controlled power vent. Heated air entering the attic
will activate the power vent.

www.desatech.com 113109-01C8
INSTALLATION
NOTICE: This heater is intended
    


     -








 -
    -

WARNING: Make sure the
-

WARNING: Never install the

 
• in a recreational vehicle
• where curtains, furniture, cloth-

are less than 42" from the front,

 
• in windy or drafty areas
-
    
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 material can be
placed directly against any exterior surface on the rear,
sides or top of your replace, except where standoff
spacers are integrally attached. If standoff spacers are
attached to your replace, 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 Fire-
place Installation, page 11.
IMPORTANT: Vent-free heaters add moisture to
the air. Although this is benecial, installing re-
place 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 replace is level. If
replace is not level, log set will not work properly.

Use the correct gas type (natural or propane/LP)
for your replace. If your gas supply is not cor-
rect, do not install replace. Call dealer where you
bought replace for proper type replace.
   
-
   





This replace accepts a blower assembly with an
electrical cord. The electrical cord is ve feet in
length. You must locate replace within reach of
a 120 volt grounded electrical outlet. If not, you
must install an electrical outlet within reach of
replace power cord. The GA3555 outlet acces-
sory is used for built-in applications with blower
accessory installed.
INSTALLING HOOD
Install hood to top of rebox as shown in Figure 5.
Use 3 Phillips screws provided.
Figure 5 - Installing Hood to Firebox

www.desatech.com
113109-01C 9
ASSEMBLING AND ATTACHING
OPTIONAL PERIMETER TRIM

IMPORTANT: If you are recessing the rebox in a
wall, do not attach perimeter trim at this time. See
Built-In Fireplace Installation, page 11.
Note: The instructions below show assembling
and attaching perimeter trim to replace.
1. Remove packaging from three pieces of pe-
rimeter trim.
2. Locate four perimeter screws, two adjusting
plates with set screws and two shims in the
hardware packet.
3. Align shim under adjusting plate as shown in
Figure 6.
4. Slide one end of adjusting plate/shim in slot
on mitered edge of top perimeter trim (see
Figure 6).
5. Slide other end of adjusting plate/shim in slot
on mitered edge of side perimeter trim (see
Figure 6).
6. While rmly holding edges of perimeter trim
together, tighten both set screws on the adjust-
ing plate with slotted screwdriver.
7. Repeat steps 1 through 6 for other side.
8. Tighten trim hanging screws (#10 x 6.25
shoulder) into holes in cabinets. Place the
assembled trim onto replace cabinet. Align
hanging notches on trim with hanging screws
on side of replace (see Figure 7). Push trim
rmly into place, sliding hanging notches over
hanging screws.
INSTALLATION
Continued
Figure 7 - Attaching Perimeter Trim to
Fireplace
Figure 6 - Assembling Perimeter Trim
Side Trim
Top
Trim
Slot
Mitered
Edge
Slot
Shim
Set Screws
Adjusting
Plate
Trim
Hanging
Screws
Assembled
Trim
Hanging
Notches
on Trim
INSTALLATION CLEARANCES
WARNING: Maintain the



Carefully follow the instructions below. This will
ensure safe installation.


A. Clearances from the side of the fireplace
cabinet to any combustible material and wall
should follow diagram in Figure 8.
Example: The face of a mantel, bookshelf,
etc. is made of combustible material and
protrudes 3 1/2" from the wall. This combus-
tible material must be 4" from the side of the
replace opening (see Figure 8).
B. Clearances from the top of the replace opening
to the ceiling should not be less than 42".



Figure 8 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
Example
*

www.desatech.com 113109-01C10
INSTALLATION
Continued
CONVENTIONAL FIREPLACE
INSTALLATION
Conventional installation of this replace involves
installing replace along with the corner, face or
cabinet mantel with hearth base accessories against
a wall in your home. Follow the instructions below
to install the replace in this manner.
Note: The instructions in this section show instal-
lation using the cabinet mantel and hearth base
accessories. The hearth base accessory shown
is optional for this installation. You can install
replace and cabinet mantel directly on the oor.
The corner mantel accessory (VYGF models only)
can only be paired with the corner hearth base. If
mounting replace and cabinet or corner mantel
to the oor, an optional G3005 Series Slim Base
kit may be installed.
1. Assemble cabinet mantel, hearth base and
trim accessories. Assembly instructions are
included with each accessory.
2. When installing blower, install a properly
grounded, 120 volt three-prong electrical out-
let at replace location if an outlet is not there.
If possible, locate outlet so cabinet mantel will
cover it when installed (see Figure 9).
3. Install gas piping to replace location. This in-
stallation includes an approved exible gas line
(if allowed by local codes) after the equipment
shutoff valve. The exible gas line must be the
last item installed on the gas piping. See Install-
ing Gas Piping to Fireplace Location, page 13.
4. Place hearth base accessory against wall at
installation location. Cut an access hole in
hearth top to run exible gas line to replace
(see Figure 9). Make sure to locate access hole
so cabinet mantel will cover it when installed.
Note: You can secure base to oor using wood
screws. Countersink screw heads and putty over.
5. Route exible gas line through access hole in
hearth base.
6. Center cabinet mantel on hearth base (see Figure
10). Make sure mantel is ush against wall.
7. Break off nailing anges (see Figure 11) with
hammer or pliers.
8. Place cardboard or other protective material
on top of hearth base. Carefully set replace
on protective material, with back of replace
inside mantel opening.
9. Attach exible gas line from replace gas
regulator to gas supply. See Connecting
Fireplace to Gas Supply, page 14.
Figure 9 - Placing Hearth Base
Accessory Against Wall
Electrical
Outlet
Hearth
Base
Rigid
Gas
Line
Gas
Line
Access
Hole
Figure 10 - Installing Cabinet Mantel
Cabinet
Mantel
Figure 11 - Location of Nailing Flanges
Nailing
Flanges
Figure 12 - Inserting Fireplace Into
Cabinet Mantel