Hearthstone Quality Home Heating Products, Inc.
Tribute DV Model #8050
25
ON/OFF/T’stat switch has been turned to “ON”, the
main burner should light immediately. If you would
like to use the thermostat and it has been installed,
switch the ON/OFF/T’stat switch to thermostat. Turn
the thermostat to "ON" and set it to a higher
position so that it "calls" for heat in order to light the
main burner (i.e. turns the unit on). Note that the
thermostat controls the on/off cycling of the main
burner, but the pilot remains lit regardless of the
thermostat setting. The only way to turn the pilot off
is to turn the gas control knob fully clockwise to the
“OFF” position.
T
O
T
URN
O
FF
G
AS
T
O
A
PPLIANCE
1. Set the thermostat to the “OFF” position
or turn the ON/OFF/T-STAT switch to
the “OFF” position.
2. If shutting the unit off for the non-
heating season, turn the gas control
knob fully clockwise to the “OFF”
position. Do not force the knob to turn.
A
IR
S
HUTTER
The air shutter is used to regulate the air-to-gas
combustion mixture, which in turn influences the
size and color of the flames. The air shutter is
positioned in the general location needed for the
type of gas being used, however, if the unit is not
burning as well as it should, then the air shutter
may need adjusting. The air shutter may need
adjustment once the unit has been installed to
compensate for variations in supply line pressure,
restriction plate position, altitude, gas type
conversions, and other variables.
To determine if the air shutter needs adjustment, it
is necessary to view the flame pattern with the
variable output control knob at its highest setting.
Allow the unit to operate for at least 10 minutes to
allow the entire unit to reach temperature, and for
the flame pattern to stabilize. Generally, the more
air (open shutter) in the mixture, the bluer the flame.
Less air (closed shutter) results in a more yellow
flame, but too little air will result in incomplete
combustion, low efficiency and a dirty burn. There
are two simple guidelines to aid in determining the
correct flame pattern:
1. If the flame at the base of the logs is
completely blue, the air shutter may be
open too far;
2. If the flame is dirty or licks the top of the
stove, the air shutter may be closed too far.
Some conditions cannot be corrected through air
shutter adjustment; an adjustment must be made to
the gas supply pressure or by changing the
restriction plate location. Qualified service
personnel must perform supply line/manifold gas
line pressure adjustments and restrictor plate
adjustments. Do not attempt to complete any part of
the installation or adjustment of this unit unless
technically qualified to do so.
A
IR
S
HUTTER
A
DJUSTMENTS
Loosen the air shutter locking nut prior to
lighting the unit.
This nut will get very hot after
operation and will be difficult to loosen. Use a 5/16”
wrench and loosen the nut on the slider adjuster
under the firebox. Loosen the set nut and slider the
adjuster to adjust the flame pattern. Use only metal
tools for this adjustment. The air shutter adjuster,
located under the front of the unit, is adjustable
while the stove is burning. Slide the adjuster left to
open the air shutter, and right to close the shutter.
When the flame pattern is correct, tighten the set
nut without letting slider move. The air shutter is
factory set and only a qualified gas technician
should make adjustments.
Note:
Very little movement is needed to
substantially change the burn and flame
patterns. Some conditions cannot be corrected
through air shutter adjustment; an adjustment
must be made to the gas supply pressure.
Supply line/manifold gas line pressure
adjustments must be performed by qualified
service personnel. Do not attempt to complete
any part of the installation or adjustment of this
unit unless technically qualified to do so.
P
ILOT
A
DJUSTMENT
The pilot light is preset by the manufacturer and
should not need adjustment. The pilot light flame
should be large enough to engulf the thermopile
and thermocouple located next to the pilot, but not
so large as to create excessive noise or consume
excessive gas.
(Refer to figure 8)
However, it can
be adjusted by means of the pilot light adjustment
screw located on the gas control valve. Open the
valve door to access the pilot adjustment screw.
Note that the pilot flame must engulf the thermopile
so that the thermopile can generate sufficient milli-
voltage (325 to 500-mv) to power the gas control
valve. The flame on the pilot should look like Figure
11. Controlling the Tribute DV by the wall-mounted
thermostat may become erratic, nonexistent, or the
unit may go out, if the pilot flame is too small or
misdirected away from the thermopile.
