Carlin 201CRD Panduan Petunjuk Pemasangan dan Pengoperasian - Halaman 7
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HOW TO ADJUST THE COMBUSTION HEAD
RETENTION RING
AND
The retention ring
position ahead
of
the throttle ring is
adjustable from
zero (flush) to 1 '/a
-inches
(Dimension
"A", Figs. 13 and
14).
Turning the adjusting
screw
in
(clockwise)
increases the distance "A" ahead. This dis¬
tance
is
indicated
by reading
the scale
on the nozzle line
across the corners on sides
of
the channel guiding the
noz¬
zle line. Each division is 1/16-inch.
AIR SHUTTER ADJUSTMENTS
(Cont.)
by adjusting the assembly further ahead and reducing the
air
pressure (closing the air
shutter).
In this case
(3.50
gph)
the maximum position would be 9/16-inch ahead; and
the air shutter would be
at
40 percent.
This latter combina¬
tion
of settings might require
a
refractory chamber
for
clean combustion. Tables 3 and 4 are provided as
a
guide.
Fig. 13
THROTTLE
RING
RETENTION
RING
Fig.
14
STOP
NUT
NOZZLE
LINE
YOKE
SCALE
ADJUSTING
SCREW
INDICATED
FROM
THIS
POINT
Table
3.
RECOMMENDED SETTINGS FOR MODEL
200CRD (5V4"
x
33/4"
Blower Wheel)
Retention Ring
Setting,
Air Shutter
Firing
Rate
Inches on Scale,
Opening
GPH
Dimension
"A"
(Percent)
2.00
Vs
*
Vb
30
±
15
2.50
'A
=*=
'A
•
35
±
15
3.00
Vu
=*=
Vs
40
=»=
20
3.50
Vis
=*=
Vb
70
±
30
4.00
Vb
±
Vb
80
±
20
4.50
13/ig
=*=
Vb
80
±
20
5.00
15/i6
=*=
Vis
100
Table 4.
RECOMMENDED SETTINGS FOR MODEL
201CRD (53,4" x 4"
Blower
Wheel)
Firing Rate
GPH
Retention
Ring Setting,
Inches
on Scale,
Dimension "A"
Air Shutter
Opening
(Percent)
4.00
Vis
*
Vis
35
±
15
4.50
3A
*
'A
50
±
20
5.00
3
Vis
=*=
A
75
25
5.50
1
=*=
Vs
90
±
10
NOZZLE
SPECIFICATIONS: 45° S-S HAGO
Other makes of nozzles
may or may
not
prove satisfactory.
Sufficient
test
data is
not
available
to
make other recom¬
mendations. The correlation of nozzle sprays between dif¬
ferent manufacturers is
not
consistent.
For special
applications, other specifications might pro¬
vide
a more
desirable
pattern.
RETENTION RING AND
AIR
SHUTTER ADJUSTMENTS
Tables
3 and
4 show for each firing
rate
the recommended
positions of the
flame
retention ring with the corresponding
amounts
of
air shutter opening. With the retention ring
set
at
the minimum recommended distance ahead, more air
pressure is needed, and the fire
is more intense, therefore
better for operating without refractory chambers. For
in¬
stance, at 3.50 gph
with the retention
ring at
5/16-inch
ahead and the air shutter
at
100 percent open
a
very in¬
tense,
hot flame would be developed
so
that it should be
optimum for clean burning with
no
chamber.
A softer,
quieter
flame (somewhat longer,
too)
would be developed
SEE PAGE
6 FOR FUEL
UNIT AND OIL
LINE DATA, LIGHT-OFF AND ADJUST¬
MENT, AND EFFECT OF BACK PRES¬
SURE ON MAXIMUM FIRING RATES.
5