
HearthStone Quality Home Heating Products, Inc. LUNO 8160 Gas-Fired Direct-Vent
17
Prior to lighting the unit for the first time, wait 5 minutes to
allow any residual gas within the unit to dissipate. Smell all
around the appliance area for gas. Be sure to smell next to
the floor because some gases (LP) are heavier than air and
will settle on the floor. If you do not smell gas after this five-
minute period, proceed with the lighting procedure. If you do
smell gas, DO NOT proceed with the lighting procedure.
Instead, immediately refer to the ‘What to Do If You
Smell Gas!’ warning on the cover of this manual.
NOTE: The valve control has an interlock device.
After shutting off all gas flow, the pilot burner cannot be
relit until the thermocouple has cooled, releasing the
electromagnet (approx. 60 seconds). The gas control
knob is designed to operate by hand. Do not use any
tools during this operation. Damaged knobs may result
in serious injury.
INITIAL ADJUSTMENTS
Once the Luno is set in place, connected and assembled as
described in the “Clearances To Combustibles”, “Venting
Components & Configurations,” “Electrical Connections”, and
“Gas Supply and Connections” sections of this manual, the
unit is almost ready to light for the first time. The
manufacturer tests each unit prior to shipment, so ignition
should take place without failure. However, a number of
small adjustments may be necessary to compensate for
variations in gas pressure, altitude, and other factors
particular to each installation.
VARIABLE OUTPUT CONTROL
The gas control valve is equipped with a variable output
control. This control varies the rate of heat produced by the
unit by varying the gas pressure to the TEK Burner. A
combination of heat output and the thermostat setting affect
the length of the burn cycle. If your stove cycles on and off
too often, first try reducing the burn cycle by turning the
HI/LOW knob, on the control valve, to a lower setting. Using
the variable output control, the heat output of the unit can
be reduced for mild fall and spring months, or maximized for
the colder winter months. This adjustment can be made by
the homeowner as necessary by turning the variable output
control knob to “HI”, “LO” or any setting in between.
LIGHTING INSTRUCTIONS
NOTE: The gas control knobs and the piezo igniter are
located behind the control valve access door, under the front
of the unit.
1. STOP! Read the What To Do If You Smell Gas!
Warning (on the cover of this manual). Ensure the
front door is closed, and the lock screws are in
place.
2. Set the on/off/remote switch or thermostat to the “OFF”
position.
3. Push in and turn the gas control knob clockwise to
“OFF”.
(If not previously lit, the knob should be in this
position.)
4. Wait (5) five minutes to clear out any gas. If you then
smell gas, STOP!
Smell all around the appliance area for
gas. Be sure to smell next to the floor because some
gases are heavier than air and will settle on the floor. If
you smell gas immediately follow the ‘What To Do
If You Smell Gas!’ warning on the cover of this
Manual.
If you do not smell gas, proceed to the next
step.
5. Turn gas control knob counter-clockwise to “PILOT”.
6. Push in the control knob all the way and hold in.
Immediately light the pilot with the gas lighter (push in
and “click” the piezoelectric spark igniter button several
times until lit). Continue to hold the control knob in for
about 20 seconds after the pilot is lit. Release the knob
and it will pop back out. The pilot should remain lit. If
the pilot goes out, repeat the operation.
If knob does not pop out when released, stop,
shut off the gas supply to the heater and
immediately call a qualified service technician or
gas supplier.
If the pilot will not stay lit after several tries,
turn the gas control knob “OFF” and call a
qualified service technician or gas supplier.
7. After the pilot lights, turn the gas control knob counter-
clockwise to “ON”.
8. If the ON/OFF/remote switch is set to “ON”, the stove
should now light. If the remote (or thermostat) is
installed, set the ON/OFF/ remote switch to “remote”
and program the remote to “ON”. Then set the desired
temperature.
9. Shut the gas control valve access door.
10. If “Remote” was selected, set remote to “ON” and set
desired temperature setting. Normally, if Remote
position was selected, the main burner is cycled on and
off by the thermostat or the “on/off” switch located on
the bottom of the thermostat body.
NOTE: When pressing/clicking the piezoelectric spark
ignition button to light the pilot, watch through the glass
(front) of the unit. Click the igniter button until a flame is
visible at the pilot. Once the pilot is lit, continue to press on
the gas control knob for another 20 seconds, then release.
Ascertain that the pilot is still lit by looking through the front
door. If lit, then turn the gas control knob fully counter-
clockwise to the “ON” position. If the pilot fails to light, or if
it went out due to a premature release of the gas control
knob while depressed in the “PILOT” position, wait 60
seconds for the Interlock to release. Then repeat the lighting
process as described in this section of the manual.
Once the pilot is lit, the gas control knob is been turned to
the “ON” position, and the ON/OFF/Remote switch is turned
to “ON”, the main burner should light immediately. If you
would like to use the thermostat and it is installed, switch the
ON/OFF/Remote switch to thermostat. Turn the remote
transmitter 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 remote thermostat controls the
on/off cycling of the main burner, but the pilot remains lit
regardless of the remote thermostat setting. The only way to
turn the pilot off is to turn the gas control knob fully
clockwise to the “OFF” position.