Table of Contents
Advertisement
Combtlstion
M -
d
Control
Low draft only
set point.
The small straight
screwdriver slot is
plastic; therefore,
the unit can be
adjusted while in
operation.
,
Draft Meter bolt
hole location
On a P61
the draft hole
is under
the left rear corner of
the firibox.
.
Fig.22
Fig. 23
Low Draft Voltaye Adiustment
These units are pre-tested at the factory with exactly
120 Volts A.C., 60 Hz. They are checkedbd adjisted for
firebox tightness, gasket ledmge, motor operation and ignitor
.operation. Th& P 6 1 ~ , i s then factory set at a mid-point
adj&tment a d i n most cases will not need any adjustments.
NOTE: The factory'low draft setting may not be correct
for the units permanent installation conditions.
The control board on the P6 1A is equipped with a
low draft adjustment port. Located on the control face just
to the right of the igniter light. This voltage adjustment is
provided to allow the unit to be adjusted for the household
voltage where the unit is going to be in permaneant o p t i o n .
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 efficient burn on low burn or "maintenance". This
voltage adjustment allows the installer to change the low
voltage set point approximately 10 volts. This adjustment
should be done by the installer during set up because a draft
meter reading is reauired 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 effiency
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.
.
B
A simple draft test should be performed after
completing the flue pipe installation. To record the results for
future
reference:
1. Plug unit into
g
12OVAC, 60 HZ outlet.
2. Close the hopper lid, front view door, and the ash pan.
Neither pellets or a fire 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. (Nomal is -.50 to
-
.60) The control will be on the High Draft for a total of 2
minutes.
5. After 2 minutes is up, 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 -.35 and -.45, 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: The test mode alternates from high to low draft
every 60 seconds. If more time is needed for draft
adjustment, wait until the next low draft cycle.
NOTE: In some cases, the draft may not go as low as
-.35
to
-.45
even with the set screw completely counter-
clockwise.
P61A-2 Pellet Stove 18
Advertisement
Table of Contents
