NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
11
MAINTENANCE TASK
ACCOMPLISHING PERSON
PROCEDURE
Inspecting/Cleaning Burner, Logs
and Controls
Qualifi ed Service Technician
Inspect valve and ensure it is properly operating. Check piping
for leaks. Vacuum the control compartment, fi replace logs and
burner area.
Check Flame Patterns and Flame
Height
Qualifi ed Service Technician
Refer to
Figure 15
on
Page 13
and verify the fl ame pattern
and height displayed by the appliance conforms to the picture.
Flames must not impinge on the logs. Ensure fl ames are steady
(not lifting or fl oating).
Inspecting/Cleaning Pilot and Burner
Qualifi ed Service Technician
Refer to
Figure 17
and
Figure 18
on
Page 14
. Remove any
surface build-up on pilot and burner assembly. Wipe the pilot
nozzles, igniter/fl ame rod and hood. Ensure the pilot fl ame
engulfs the fl ame sensor as shown.
Checking Vent System
Qualifi ed Service Technician
Inspect the vent system at the top and at the base (within the
fi rebox) for signs of blockage or obstruction. Look for any signs
of dislocation or deterioration of the vent components. Note:
Inspect wall straps or plumbers's tape to ensure it is secure
and in place.
Appliance Checkout
Qualifi ed Service Technician
Perform the appropriate appliance checkout procedure detailed
in this manual.
Replacing Rockwool Ember Materials
Homeowner/Qualifi ed Service
Technician
Remove old ember materials (rockwool) and vacuum the ember
placement area. Place new embers as described in
Step 6
on
Page 11
.
MAINTENANCE SCHEDULE -
Annually
(Before the onset of the Burning Season)
MAINTENANCE TASK
ACCOMPLISHING PERSON
PROCEDURE
Cleaning Firebox Interior
Homeowner
Carefully remove logs, embers (rockwool), and vermiculite.
Vacuum out interior of the fi rebox. Clean fi rebox walls and
log grate. Replace logs, embers (rockwool) and vermiculite as
detailed in this manual (see
Pagexs 8-10
).
Check Flame Patterns and Flame
Height
Homeowner
Refer to
Figurex 15
on
Pagex 10
and verify the fl ame pattern
and height displayed by the appliance conforms to the picture.
Flames must not impinge on the logs.
Checking Vent System
Homeowner
Inspect the vent system at the top and at the base (within the
fi rebox) for signs of blockage or obstruction. Look for any signs
of dislocation of the vent components.
Cleaning Front Glass Enclosure Panel
Homeowner
Clean as necessary following the directions provided in this
manual.
DO NOT TOUCH OR ATTEMPT TO CLEAN GLASS
WHILE HOT
.
MAINTENANCE SCHEDULE -
Periodically
(After the Burning Season)
2.
Light appliance (follow lighting procedure on
lighting label in control compartment or see
homeowners manual).
3.
Allow the burner to operate for at least 15 min-
utes while observing the fl ame continuously to
ensure that the proper fl ame appearance has
been achieved (see
Figure 15
). If the following
conditions are present, adjust accordingly.
• If flame appears weak or sooty, adjust the
air shutter, incrementally, to a more open
position until the proper fl ame appearance
is achieved.
• If fl ame stays lowered blue, adjust the air
shutter, incrementally, to a more closed
position until the proper fl ame appearance
is achieved.
4.
Leave the control knob (off/pilot/on) in the ON position and the burner OFF/ON switch OFF (& remote switches, if applicable).
5.
When satisfi ed that the burner fl ame appearance is normal, close the lower control compartment door.
Adjustment Rod Positions
(when viewed from above)
Figure 16
Main Burner Factory Air Shutter
Opening Setting - All Models
Model
Natural
Gas
Propane
Gas
MPB35ST
1/8”
3.2mm
1/4”
6.4mm
Increase Shutter Opening
In This Direction
Decrease Shutter Opening
In This Direction
Note - Burners are
omitted in this
view for clarity.
Orifi ce
Air Shutter
Adjusting
Rod
