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Innovative Hearth Products
DRT4000 Direct Vent Gas Fireplace
Step 10. REMOVING AND INSTALLING
THE GLASS DOOR
WARNING
• Do not attempt to substitute the
materials used on these doors,
or replace cracked or broken
glass.
• Handle this glass with extreme
care! Glass is susceptible to
damage - Do not scratch or
handle roughly while reinstall-
ing the glass door frame.
• The glass door(s) of this appli-
ance must only be replaced as
a complete unit as provided
by the manufacturer. Do not
attempt to replace broken,
cracked or chipped glass sepa-
rately.
• Do not attempt to touch the
front enclosure glass with your
hands while the fireplace is in
use.
• DO NOT abuse glass door by
striking or slamming shut.
WARNING
Donotoperateappliancewiththe
glass front removed, cracked, or
broken.
AVERTISSEMENT
Ne pas utiliser l'appareil si le
panneau frontal en verre n'est
pas en place, est craqué ou
brisé.
Only doors certified with the appliance
shall be used.
Seules des portes certifiées pour cet
appareil doivent être utilisées.
Removing Glass Enclosure Panel
(see Figure 57)
To access the glass door securing latches, first
remove the hood by pulling firmly straight away
from the unit. Remove the front face assembly
by lifting top and bottom evenly approximately
1/2" and pulling straight out from the unit once
the brackets are disengaged.
32
Locate the two (2) glass door spring latches
at the top of the control compartment (see
Figure 57). Pull out each spring latch until
it disengages from the door frame bottom
vee-flange. Remove the door by tilting it
outward at the bottom and lifting it up. Set
the door aside, taking care to protect it from
inadvertent damage.
Installing Glass Enclosure Panel
(see Figure 57)
Retrieve the glass door. Visually inspect the
gasket on the backside of the frame. Gasket
surface must be clean, free of irregularities
and seated firmly.
Position the door in front of the firebox opening
with the bottom of the door held away from the
fireplace (Figure 57). Hook the top flange of the
door frame over the top of the firebox frame.
Let the bottom of the door frame swing gently
in towards the fireplace ensuring that the gasket
seats evenly as the door frame draws shut.
Fasten the two spring latches located under-
neath the firebox floor to the door's vee-flange.
NOTE: Front Face Assembly with
barrier installed must be rein-
stalled prior to operation.
Top Flange
Glass Door Frame
Glass Door
Bottom Vee-flange
Glass Door Frame
Firebox Floor
Glass Door
Spring Latch
Figure 57
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Installation and Operation Instructions
900357-00, 09/2015
Step 11. BURNER ADJUSTMENTS
Flame Appearance and sooting
Proper flame appearance is a flame which is
blue at the base and becomes yellowish-orange
in the body of the flame.
When the appliance is first lit, the entire flame
may be blue and will gradually turn yellowish-
orange during the first 15 minutes of operation.
If the flame remains blue, or if the flame is
orange with evidence of sooting (black tip), the
air shutter opening may need to be adjusted.
If the air shutter opening is closed too far,
sooting may develop. Sooting is indicated by
black puffs developing at the tips of very long
orange flames. Sooting results in black deposits
forming on the logs, appliance inside surfaces
and on exterior surfaces adjacent to the vent
termination.
Sooting is caused by incomplete combustion
in the flames and lack of combustion air enter-
ing the air shutter opening. To achieve a warm
yellowish-orange flame with an orange body
that does not soot, the shutter opening must be
adjusted between these two extremes.
Air Shutter Adjustment Guidelines
• If there is smoke or soot present, first check
the log set positioning to ensure that the
flames are not impinging on any of the logs.
If the log set is properly positioned and a
sooting condition still exists, then the air
shutter opening should be increased.
• The more offsets in the vent system, the larger
the air shutter opening will need to be.
• An appliance operated with the air shutter
opened too far, may have flames that appear
blue and transparent. These weak, blue and
transparent flames are termed anemic.
• Propane models may exhibit flames which
candle or appear stringy. If this is present
and persists, adjust the air shutter to a more
closed position, then operate the appliance
for a few more minutes to ensure that the
flame normalizes and the flames do not
appear sooty.
The following chart is provided to aid you in
achieving the correct air shutter adjustment
for your installation.
Air Shutter Adjustment Guidelines
Amount of
Flame
Primary Air
Color
If air shutter is
Flame will
closed too far
be orange
If air shutter is
Flame will
open too far
be blue
:
Air Shutter
Adjustment
Air shutter
gap should be
increased
Air shutter
gap should be
decreased
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