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(ref. Form # 750,008M)
Outside Combustion Air Kits
Cat. No.
Model No.
81L87
FOAK-4
Combustion Air Kit (w/duct)
81L88
FOAK-4Ld
Combustion Air Kit (w/o duct)
Figure 22
Step 8. VERIFYING AppLIANCE OpERA-
TION
With gas line installed run initial system check-
out before closing up the front of the unit. Follow
the pilot lighting instructions provided in the
Care and Operation Instructions manual. For
piezo igniter location see Figure 23
Note: Instructions are also found on the litera-
ture tag attached to the gas valve train.
When first lighting the appliance, it will take
a few minutes for the line to purge itself of
air. Once purging is complete, the pilot and
burner will light and operate as indicated in
the instruction manual. Subsequent lightings
of the appliance will not require such purging.
Inspect the pilot flame (remove logs, if neces-
sary, handling carefully).
SIT millivolt
Gas Valve
Control
Compartment
Shown with control
compartment door
removed
piezo Igniter
SIT millivolt Gas Valve
Showing piezo Igniter Location
Figure 23
16
SIT millivolt Appliance Checkout
The pilot flame should be steady, not lifting
or floating. Flame should be blue in color with
traces of orange at the outer edge.
The top 3/8" (10 mm) at the pilot generator
(thermopile) and the top 1/8" minimum (tip)
of the quick drop out thermocouple should be
engulfed in the pilot flame. The flame should
project 1" (25 mm) beyond the hood at all three
ports (Figure 24).
Replace logs if removed for pilot inspection.
Description
To light the burner; turn "ON" the remote wall
switch and rotate the gas valve control knob
counterclockwise to the "ON" position.
Thermocouple
pilot
Nozzels
Figure 24
Electronic Appliance Checkout
To light the burner, turn 'ON' the optional remote
wall switch and turn the gas control switch to
the "ON" position. Ensure the igniter lights the
pilot. The pilot flame should engulf the flame
rod as shown in Figure 25.
proper pilot Flame Appearance
proper Flame
Adjustment
pilot
Nozzels
Figure 25
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
SIT mILLIVOLT pILOT ASSEmbLY
proper pilot Flame Appearance
Igniter Rod
Hood
Thermopile
ELECTRONIC pILOT ASSEmbLY
3/8" to 1/2"
(9 to 13 mm)
Ground
Electrode
Flame Rod
Hot Surface
Igniter
Step 9. INSTALLING LOGS, dECORA-
TIVE VOLCANIC STONE ANd GLOW-
ING EmbERS
WARNING
• dO NOT attempt to install the
logs until the appliance instal-
lation has been completed, the
gas line connected and tested
for leaks and the initial burner
operation has been checked
out.
• The size and position of the log
set was engineered to give the
appliance a safe, reliable and
attractive flame pattern. Any
attempt to use a different log
set in the fireplace will void
the warranty and will result in
incomplete combustion, soot-
3/8"
ing, and poor flame quality.
(9 mm)
• Logs get very hot and will
remain hot up to one hour
after gas supply is turned off.
Handle only when logs are
cool. Turn off all electricity
to the appliance before you
install volcanic stone, embers
and logs.
• This appliance is not designed
to burn wood. Any attempt
to do so could cause irrepa-
rable damage to the appliance
and prove hazardous to your
safety.
• If logs are not installed
according to the log instal-
lation instructions, flame
impingement and improper
combustion could occur and
result in soot and/or excessive
production of carbon monoxide
(CO), a colorless, odorless,
toxic gas.
Locate the packaged carton of logs (which were
located in the firebox). The decorative volcanic
stone and glowing embers were packaged
separately in plastic bags located in the control
area of the fireplace.
Install the logs per the instructions in the Care
and Operation Manual.
dO NOT attempt to install the logs until the ap-
pliance installation has been completed, the gas
line connected and tested for leaks and the initial
burner operation has been checked out.
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