Outside Combustion Air Control - Superior B-500CEN Homeowner's Care And Operation Instructions Manual

Outside Combustion Air Controls
Many appliances are equipped, when installed,
with an outside (make-up air) vent system that
is designed to provide the appliance with out-
side make-up air for combustion when in op-
eration. The combustion air control lever for
the outside air system is standard on all appli-
ances but should not be operated if the com-
plete system is not installed. Refer to Figure 5 .
When the complete outside air vent system is
installed, the installer will remove the securing
screw from the combustion air control lever
located on the left side of the fireplace bottom
opening.
If the securing screw has not been removed and
you have reason to believe that you have a
complete outside air system, contact your dis-
tributor to have your appliance inspected for
the presence of the complete system. DO NOT
assume that you have this system in place.
f i r e - p a r t s . c o m
Outside Air Control Lever
Outside Air Control Lever
Securing Screw
Air Shutter in Closed Position
Outside Air Control Lever
Outside Air Control Lever
Securing Screw Removed
Air Shutter in Open Position
Combustion Air Control Lever
and Securing Screw Location
Figure 5
WARNING: DO NOT OPERATE THE
SHUTOFF LEVER UNLESS A COM-
PLETE OUTSIDE COMBUSTION AIR
SYSTEM HAS BEEN INSTALLED WITH
YOUR APPLIANCE.
To open the outside air shutter, open the
bottom control access panel, reach into con-
trol compartment and pull the combustion air
control lever all the way out. The outside air
shutter should be fully open when the fire-
place is in use and completely closed when the
fireplace is not being used. Closing it when
not in use will prevent outside cold air from
entering the dwelling.
Step 13. Spillage Test and Safety Limit
Switch Operation
Spillage Test
After appliance installation, perform this spill-
age test to verify that proper venting conditions
exist:
1 - Place unit in its normally-operated
condition, that is, with the glass enclosure
panel in place.
2 - Close all doors and windows in the
room. Turn on all exhaust fans in the
house.
3 - Light the appliance.
4 - Wait 15 minutes.
5 - To check for venting action, start by
holding a smoke producing device within
an inch of one edge (side edge, not top or
bottom edge) of the glass enclosure panel.
The smoke should be drawn toward the
edge of the glass enclosure panel. Con-
tinue the test by moving the smoke pro-
ducing device along the entire length of
both side-edges of the glass door.
6 - If the smoke is not drawn towards the
edges of the glass door turn off the appli-
ance and call a qualified service
technican.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Manually-Reset Safety Limit Switch
This appliance is equipped with a manually-
reset blocked flue safety limit switch. Refer to
Figure 6 on page 7 for its location. If, during
appliance operation, the flame goes out (in-
dependently of the burner on/off wall switch),
it may be due to the operation of this safety
limit switch. First allow the appliance to
cool. Remove top louver panel. Then reset
the safety limit switch by pushing the red
reset button, located between the wire termi-
nals, on the back of the switch. See Detail A
of Figure 6 for location.
The appliance should then relight and remain
lit. Reinstall top louver panel. If the appliance
does not relight, turn off the appliance and
call for a qualified service technician.
To replace the blocked flue safety limit switch
refer to Figure 6 on page 7 (Details B and C):
NOTE - This procedure should only be per-
formed by a qualified service technician.
Important - Turn electrical power off before
beginning this procedure.
1 - Lower the bottom control compartment
access panel. Remove the glass enclo-
sure panel: open the latch (located in
the center of the unit front opening,
under the firebox floor) securing the
glass enclosure panel. Remove the
panel by tilting it outward at the bottom
and lifting it up. Set the door aside
protecting it from inadvertent damage.
See Figure 7 on page 7.
2 - Remove the lintel securing screws (3)
and then remove the lintel. One of the
lintel cabinet top holes is shown in
Figure 6 (Detail B) .
3 - Remove the scoop securing screws
(3) and then remove the scoop. See
Figure 6 (Detail B) .
4 - Remove the safety switch bracket secur-
ing screws (2), and pull the switch/bracket
assembly, with low voltage wires at-
tached, through the side panel slot into
the firebox. See Figure 6 (Detail C) .
5 - Replace the switch.
6 - Reinstall the switch/bracket assembly.
7 - Reinstall the scoop and lintel.
8 - Reinstall the glass enclosure panel.
9 - Raise the bottom control compartment
access panel.
10 - The appliance should then relight and
remain lit. If this does not occur, check
unit for a blocked flue condition.
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