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DV400S DIRECT VENT ROOM HEATER
March 4, 2002 Page 27 30211C
R
Cleaning the burner and control compartment
Keep the burner compartment clean. Brush this area with a
clean, dry paint brush and vacuum at least once a year. Always
turn off the gas valve and ON/OFF switch before cleaning.
Checking flame patterns
Visually check the flame of the burner periodically, making sure
the flames are steady; not lifting or floating. The flame color
should be blue with yellow tips. The thermopile tip should be
covered with flame. See Figure 26
NOTE: If the air shutter is open all the way and the
flames remain sooty, shut off gas to the appliance
and contact a qualified gas service technician.
If the vent configuration is installed incorrectly, the
vent may cause the flames inside the appliance
to lift or “ghost” - a dangerous situation. Inspect
the flames after installation to ensure proper perfor-
mance. If the vent configuration is correct, yet the
flames are lifting or ghosting, shut off gas to the
appliance and contact a qualified service techni-
cian. ( See Fig. 27)
Venting system inspection
The heater and venting system should be inspected before use
each season, and at least annually, by a qualified field service
person, to ensure that the flow of combustion and ventilation
air is not obstructed.
Cleaning the glass
It is recommended to wear gloves while handling or removing
the glass. DO NOT REMOVE THE GLASS WHEN HOT.
MAINTENANCE INSTRUCTIONS
Figure 26 - Standing Pilot
Note: When cleaning the glass, NEVER use abrasive
materials. NEVER clean glass when hot.
To clean the glass, use a non-abrasive, mild cleaning solution.
(For example, a glass cleaner for stubborn film, or an oven
cleaner.) Apply an adequate amount to the glass and wipe
off with a damp cloth. Be sure all cleaner is thoroughly rinsed
from the glass.
Never operate this heater without the glass properly secured in
place or if the glass is broken.
In the event of glass breakage, follow door removal instruc-
tions. This will allow the removal of all glass fragments and
sheet metal edge protection strips. Vacuum all remaining glass
pieces with a shop vac. (DO NOT VACUUM IF PIECES ARE
HOT.) Replacement glass can be ordered through your local
dealer or distributor. Never use substitute material. Only
ceramic glass may be used on this heater.
Log cleaning
Carbon build-up can be removed with a vacuum cleaner.
Figure 27 - Flame Patterns
WARNING!
Do not use this heater if any part has been under
water. Immediately call a qualified service techni-
cian to inspect the heater and to replace any part of
the control system and any gas control which has
been under water.
CAUTION: Label all wires prior to disconnec-
tion when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify
proper operation after servicing.
Note: Operation of a Direct Vent Heater may
be sporadic in high wind situations.
Ignitor
Thermocouple
Pilot Hood
Thermopile
Flame covers top " of the
Thermopile and Thermocouple.
Correct
Flames should be blue at the base,
yellow-orange on the top.
Not Enough Air
If the flames are tall or sooty on
the ends, open the air shutter.
Too Much Air
If the flames are all blue, short
and transparent, close the air shutter.