3-90-00674R20_08/12
These units are pre-tested at the factory with exactly
120 Volts A.C., 60 Hz. They are checked and adjusted
for rebox tightness, gasket leakage, motor operation
and igniter operation. The stove is then factory set at a
high adjustment.
The control board on the Accentra Insert is equipped
with a low draft adjustment port. Located on the control
face just to the right of the igniter light. See Figure 44.
This voltage adjustment is provided to allow the unit
to be adjusted 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 adjusted to achieve
the most efcient burn on low burn or "maintenance".
This voltage adjustment allows the installer to change
the low voltage set point approximately 15 volts. This
adjustment should be done by the installer during set
up because a draft meter reading is to insure
proper set up.
If the unit is not adjusted properly, it does not cause
a safety concern. If the unit is adjusted too high, only
efciency is lost. If the unit is adjusted too low, the low
draft pressure switch will not allow the feeder motor or
the igniter to operate.
After the installation is completed, but before the rst re is lit, check and record the
high and low draft readings.
A simple draft test should be performed after
completing the ue pipe installation. To record the
results for future reference:
1. Plug unit into a 120VAC, 60 HZ outlet.
2. Close the hopper lid and front view door. Neither
pellets or a re are required for this test.
3. With the mode selector in the "OFF" position, turn
the feed adjuster to "TEST".
4. Record the high draft_____in. W.C. (Normal is -.45
to -.55) The control will be on the High Draft for a total
of 1 minute.
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.
6. If the low draft is between .30 and .35, 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.
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.
Fig.44
The head of the plug bolt can be accessed through
the bottom distribution air inlet with the cast ash lip
removed.
Fig. 45
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