8
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Electronic Appliance Checkout
To light the burner, refer to the lighting instruc-
tions on
page 15 and 16
. Ensure the ignitor
lights the pilot. The pilot flame should engulf the
flame sensor as shown in
Figure 11.
With proper care and maintenance, your ap-
pliance will provide many years of enjoy-
ment. If you should experience any problem,
first refer to the trouble shooting guide in
this manual. If problem persists, contact
your Lennox distributor.
SIT and Honeywell 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
" min (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 9 - SIT,
Figure 10 - Honeywell
).
To light the burner, refer to the lighting in-
structions on
pages 13 and 14
for Honeywell
and SIT millivolt gas valves).
ELECTRONIC
Proper Flame
Adjustment
Pilot
Nozzle
3/8 To 1/2 Inch
(9 mm to 13 mm)
Ground
Electrode
Flame Rod
Hot Surface
Igniter
Figure 11
Figure 9
Figure 10
MILLIVOLT
Thermocouple
Hood
Ignitor Rod
³⁄₈
" Min
(9 mm)
Thermopile
Pilot
Nozzels
¹⁄₈
" Min
(3 mm)
Thermocouple
Ignitor Rod
Hood
³⁄₈
" Min
(9 mm)
Thermopile
MILLIVOLT HONEYWELL
Pilot
Nozzels
Figure 8
Air Shutter
Venturi
Set Screw - Factory Located in the Natural
Gas Position; Relocate Set Screw for
LP/Propane Gas in the Alternate Position.
See Table below for Air Shutter Openings
for these Set Screw Locations.
s
l
e
d
o
M
s
a
G
e
p
y
T
R
I
A
Y
R
O
T
C
A
F
G
N
I
T
T
E
S
R
E
T
T
U
H
S
)
m
m
(
s
e
h
c
n
i
0
0
5
-
B
.
t
a
N
n
e
p
o
)
9
5
.
1
(
6
1
/
1
.
p
o
r
P
4
/
1
n
e
p
o
)
5
3
.
6
(
0
0
6
-
B
.
t
a
N
n
e
p
o
)
9
5
.
1
(
6
1
/
1
.
p
o
r
P
6
1
/
5
n
e
p
o
)
4
9
.
7
(
0
0
8
-
B
.
t
a
N
d
e
s
o
l
c
y
ll
u
F
.
p
o
r
P
2
3
/
7
n
e
p
o
)
5
5
.
5
(
Burner Adjustments
Note -
The
air shutter for the burner primary air
opening is factory-set. Do not adjust the factory-
set position. The factory-set position is shown in
Figure 8.
f i r e - p a r t s . c o m
