32
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 40
NOTE: The piezo igniter is located on the modesty panel - refer to Figure 1.
Variable Flame Height Adjustment
( Millivolt Appliances only)
All Millivolt appliances are equipped with a
variable gas control valve. Flame height for
these models may be adjusted through a range
between fixed low and high settings, alternately,
while the appliance is in operation.
Adjust the flame height as desired after lighting
the appliance by rotating the variable adjustment
control knob located on the front of the valve
(refer to Figure 40)
.
(An extension is provided
to this knob so that the adjustment may be made
at the modesty panel).
HI
LO W
TPTH
TP
TH
PILO
T
PIL
OT
ON
it
OFF
Variable Flame Height Adjustment
Manifold Pressure Port
Inlet Pressure Port
Main Gas
Control Knob
IN
OUT
SIT Millivolt Gas Valve
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
outside make-up air for combustion when in
operation. The outside air control lever for the
outside air system is standard on all appliances
but should not be operated if the complete
system is not installed. Refer to
Figure 41
.
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 right side of the fireplace 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
distributor to have your appliance inspected
for the presence of the complete system. DO
NOT assume that you have this system in place.
Control Compartment Access Panel
Figure 41 Unit Parts Identification
Front face assembly
Barrier
Control Compartment (behind assembly)
Hood