Vermont Casting 2550 - Manual (Page 29)

29
Encore Woodburning Stove
2000956
2. Turn the pressure screw approximately one half turn
clockwise.
3. Tighten the lock nut. Keep the pressure screw from
turning as you tighten the nut. Re-test the damper.
Under normal operating conditions, the catalytic com-
bustor should remain active for two to six years (de-
pending on the amount of wood burned). However, it
is important to monitor the combustor periodically to
ensure that it is functioning properly, as well as to deter-
mine when it needs to be replaced. A non-functioning
combustor will result in a loss of heating efficiency, and
an increase in creosote and emissions.
Inspect the combustor “in place” for fly ash accumula-
tion and physical damage three times per year. Do not
remove the combustor unless a more detailed inspec-
tion is warranted because of diminished performance
as outlined below.
The refractory package that houses the catalytic com-
bustor should be inspected annually for a buildup of fly
ash and cleaned if necessary. This may be done when
you examine the combustor.
When to Suspect a Combustor Problem
The best way to evaluate the performance of your
Encoreʼs combustor is to observe the amount of smoke
leaving the chimney — both when the combustor has
achieved “light-off” and when it has not. Follow these
steps:
• With a fire going and the combustor properly ac-
tivated, with the damper closed to route smoke through
it as described in the Operation Section, go outside and
observe the smoke leaving the chimney.
• Then, open the stove damper and once again
check the smoke leaving the chimney. Significantly
more smoke should be seen when the stove damper is
open and exhaust does not pass through the combus-
tor. Be careful not to confuse smoke with steam from
wet wood, however. Steam dissipates in the air quickly;
smoke does not.
Tighten the Damper Handle as Needed
A handle on the left side of the stove controls the
damper. The handle attaches to the damper rod with a
set screw. Periodically check the set screw and tighten
as necessary.
How to Adjust the Door Latches
The Encoreʼs front doors, as well as its ash pan door,
should close securely to prevent accidental open-
ing and to keep air from leaking into the stove. On
adequately adjusted doors, the handles should resist
slightly as they are turned to the closed position and the
doors themselves should be drawn slightly toward the
stove.
Over time, the gasket around the doors will compress
and the latch may need adjustment.
To adjust the handle on the front doors, open the
door on which the handle is mounted and rotate the
handle one full turn counterclockwise. Since this handle
is threaded into the front door, a complete revolution will
adjust it enough so the doors close securely.
To adjust the latch on the ash pan door, loosen the
small lock nut, rotate the striker screw a half-turn, and
re-tighten the small lock. Hold the striker screw to keep
it from turning as you tighten the lock nut. Make repeat-
ed small adjustments until the setting is right.
The Catalytic Element
Inspection and Cleaning
This wood heater contains a catalytic combustor, which
needs periodic inspection and replacement for proper
operation. In the United States it is against the law to
operate this wood heater in a manner inconsistent with
the operating instructions in this manual, or if the cata-
lytic element is deactivated or removed.
ST531
Door Pawl
11/00
Pawl
Small
Locking Nut
Large Lock-
ing Nut
Set Screw
Handle Stub
Striker Screw
ST531
Fig. 47 Turn the door latch striker screw in or out to tighten or
loosen the door latch.
ST642
Encore
damper adjust
3/01
Damper
Lock Nut
Pressure Adjust-
ing Screw
ST642
Fig. 46 Adjusting the damper.