Desa CD42M-A2 - Manual (Page 13)

www.desatech.com 111916-01F 13
Lava Rock and Ember Material
1. For all models, place lava rock along sides and
front of firebox bottom in areas that are visible. It
is not necessary to use all lava rock provided.
NOTICE: Do not put lava rock
on or under burner. Placing
lava rock on burner could cause
performance problems.
2. Pull ember material apart into pieces no larger
than a dime. Place loosely and directly onto
exposed section of front burner and along space
between burner and grate prongs. These will cre-
ate glowing ember appearance as flame touches
ember material. Do not block air slots by using
too much ember material in one area. It is not
necessary to use all ember material provided.
3. When lava rock and ember material are in
place, close and latch glass door and secure
louvers in place.
WARNING: The glass door
must be securely in place before
operating fireplace. Do not oper-
ate fireplace if glass is missing
or broken.
DECORATIVE FACING
Any noncombustible material may be used as fac-
ing (glass, tile, brick, etc.) as long as the proper
clearances are observed (see Clearances to Com-
bustibles, page 4). Louvered openings must not
be obstructed and upper and lower panels must
remain accessible for service. Use only heat-re-
sistant, noncombustible mortar or adhesive when
securing decorative facing materials.
FACE EXTENSION FOR MODEL
CD32M ONLY
Model CD32M comes equipped with a front face
extension. The front face extension would add
3 1 /
2
" to the width and 3/4" to the height of the
fireplace face.
To install face extension:
1. Remove existing screws from front face as-
sembly as shown in Figure 29.
2. Align holes on top face extension with holes on
top side of front face assembly and secure with
screws previously removed (see Figure 29).
INSTALLATION
Continued
3. Align holes on right face extension with holes
on right side of front face assembly and secure
with screws previously removed (see Figure
29). Do the same for left side.
4. Secure top face extension with left and right
face extensions with two sheet metal screws
(see Figure 29).
Figure 29 - Front Face Extension, Model
CD32M Only
BURNER FLAME
ADJUSTMENT
The burner flame adjustment (shutter opening) has
been factory preset (for natural gas) to the proper
air-to-gas ratio. This ratio results in an even, clean
burning flame across the burner (see Figure 30).
Figure 30 - Burner Flame Patterns
CORRECT
INCORRECT
CLOSE
SHUTTER
INCORRECT
OPEN
SHUTTER
Short, Sharp, Blowing Flame
Long, Blue Flame with Yellow Tips
Long, Uneven, Yellow Flame
Side Face
Extensions
Top Face
Extension