Lennox Hearth T300P - Manual (Page 18)

CARE AND OPERATION
Page 18
Combustion Voltage Trim Steps:
1. Push button “twice” for access voltage calibration
mode.
2. Identify the current calibration setting indicated by one
YELLOW LED bar.
3. Push the “HEAT” control button to adjust setting UP.
Each push raises the YELLOW LED bar & increases
voltage 5%.
4. Push the “BLOWER” control button to adjust setting
DOWN. Each push lowers YELLOW LED bar decreas-
ing voltage 5%.
5. Push the calibration button once to lock in selected
results.
Fuel Delivery Rate
The feed rate switch manages the fuel delivery rate by
controlling the amount of time the auger motor will run as
follows:
Feed
Rate
Setting
Auger Motor
ON / OFF
Time (sec-
onds)
* Lb.’s per
hour fuel
delivery
♦ Approxi-
mate
BTU per
hour
fuel de-
livery
Burn
Time
(hours)
Low = 1 on / 5.00
off 1.5 Lb.’s /
hr. 13,000
BTU / hr 34
Med.= 1 on / 3.30
off 2.5 Lb.’s /
hr. 21,000
BTU / hr 20
High = 1 on / 1.60
off 3.8 Lb.’s /
hr. 32,000
BTU / hr 14
* Feed rates are approximations only. Actual feed rate
will vary depending on size, quality and length of fuel
used and variations in line voltage.
♦ Estimated heat input based on fuel value of 8400 BTU
per lb. of fuel.
Your pellet stove can be operated in either manual or
automatic mode. The manual mode is used when op-
erating without a thermostat. The automatic mode is
used when utilizing a wall thermostat. When utilizing
the thermostat capability the burn time can be extended
dramatically depending on thermostat setting. Note: It is
normal for some ash to build up on the inner glass sur-
face at the lower burn settings.
Initial Start-Up / Empty Hopper or Feed Tube:
During an initial start-up, or in the case where the hop-
per has run out of fuel, it will be necessary to prime the
auger feed system. The control board is set to deliver
fuel for approximately 2 1/2 minutes during start-up,
which, with a fully primed auger tube, will provide the
appropriate amount of fuel for ignition.
When first starting your pellet stove, it will be necessary
to prime the auger tube. To prime the auger tube you
need to first fill the hopper with pellets, and press the
ON button on the control board. Wait approximately 2
1/2 minutes and turn the control OFF and then back ON
again. Wait an additional 2 1/2 minutes (if necessary)
and continue this process until fuel begins to fall into the
UltraGrate
. Remember, different brand fuels feed at
different rates.
Once fuel starts to enter the UltraGrate
, turn the stove
OFF and then back ON. The auger tube should now be
primed and the stove should deliver enough fuel for
proper ignition. It may be necessary to follow these pro-
cedures in the event that the hopper runs completely
out of fuel.