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1 -9 0 -0 9 7 3 0 R 2 6 _ 0 6 /1 3
These units are pre-tested at the factory with exactly 120
AC, 0 Hz. They are checked and ad usted for firebox
tightness, gasket leakage, motor operation and igniter
operation. The Advance is then factory set at a mid-point
ad ustment and in most cases will not need any ad ustments.
NOTE: The factory low draft setting may not be correct
for the unit' s permanent installation conditions.
The control board on the Advance is equipped with a low draft
ad ustment port, located on the control face ust to the right
of the igniter light. See igure 1 . This voltage ad ustment
is provided to allow the unit to be ad usted for the household
voltage where the unit is going to be in permanent operation.
NOTE: The line voltage varies from area to area and often
home to home.
The low draft voltage should be ad usted to achieve the most
efficient burn on low burn or maintenance . This voltage
ad ustment allows the installer to change the low voltage
set point approximately 15 volts. This ad ustment should
be done by the installer during set up because a draft meter
reading is
req uired
to insure proper set up.
If the unit is not ad usted properly, it does not cause a safety
concern. If the unit is ad usted too high, only efficiency is lost.
If the unit is ad usted too low, the low draft pressure switch
will not allow the feeder motor or the igniter to operate.
A simple draft test should be performed after completing the
flue pipe installation. To record the results for future reference:
1. Plug unit into a 120 AC, 0 H outlet.
2. Close the hopper lid, front view door, and the ash pan.
Neither pellets nor a fire are required for this test.
. With the mode selector in the O
position, turn the feed
ad uster to TEST .
. Record the high draft
in W.C. (Normal is -.50 to
-. 0) The control will be on the High raft for a total of 2
minutes.
5. After 1 minute, the combustion motor will go down to low
draft and the distribution blower will go on high. Allow
approximately 15 seconds to pass for the combustion
motor to slow before checking the low draft.
. If the low draft is between . 5 and . 5, record the reading
in W.C. If the reading is higher, slowly turn the
set screw counter-clockwise until the draft lowers. If the
reading is lower, very slowly turn the set screw clockwise
until the draft increases.
NOTE: In some cases, the draft may not go as low as .3 5
even with the set screw completely counter-clockwise.
Combustion Motor
Speed Control
Low draft only set
point.
The small straight
screwdriver slot is
plastic; therefore, the
unit can be adjusted
while in operation.
F ig. 1 4
raft eter bolt
hole location
F ig. 1 5 :
Low Draft V oltage Adj ustment
