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Sentry
Boiler
No. of
A
Model
Sect.
S-34
2
8
⁄
"
1
8
S-60
3
11
1
⁄
"
8
S-90
4
14
1
⁄
"
8
S-120
5
17
⁄
"
1
8
S-150
6
20
1
⁄
"
8
Boiler
Gas
Model
Type
Natural
S-34
Propane
Natural
S-60 thru S-150
Propane
Orifice indicated for sea level above are factory installed in boiler unless otherwise specified by the local authority.
See page 14 for burner input adjustment.
Base Assembly
Sentry Boiler
Dimensions
(inches)
B
C
D
14
⁄
"
4
33"
5
8
17
5
⁄
"
4
37"
8
20
5
⁄
"
5
37"
8
23
⁄
"
6
37"
5
8
26
5
⁄
"
7
37"
8
Orifice
Includes 4% Reduction for Each 1000 Feet
Size for
Sea
2000
3000
Level
47
48
48
56
56
56
50
51
51
57
58
59
Burners
Pilot
Burner
Access
Door
Gas Valve
Approx.
Total Wt.
Water (lb.)
E
F
G
(max)
—
—
6
⁄
"
1
4
4
1
⁄
"
26"
6
1
⁄
"
2
4
5
1
⁄
"
25
1
⁄
"
6
1
⁄
"
2
2
4
7
⁄
"
25"
6
⁄
"
1
1
2
4
8
1
⁄
"
24
1
⁄
"
8
1
⁄
"
2
2
4
Orifice Sizes for High Altitudes
Elevation - Feet
4000
5000
6000
49
49
49
57
57
57
51
51
52
59
60
60
INSTALLATION REQUIREMENTS
The installation must conform to the requirements of the authority
having jurisdiction or, in the absence of such requirements, to the
National Fuel Gas Code, ANSI Z223.1-latest edition.
This installation must also conform to the additional requirements
in this Slant/Fin Instruction Book.
NATURAL GAS-FIRED BOILER LOCATION
Provide a level, solid foundation for the boiler. Location should be
as near as possible to chimney or outside wall so that the flue pipe
from boiler is short and direct.
The location should also be such that the gas ignition system com-
ponents are protected from water (dripping, spraying, rain, etc.)
during appliance operation and service (circulator replacement,
condensate trap, control replacement, etc.).
BOILER FOUNDATION
A. Provide a solid, level foundation, capable of supporting the
weight of the boiler filled with water, and extending at least 2"
past the jacket on all sides. See dimensions of boiler, page 2.
B. For installation on non-combustible floors only. The
Combustible Floor Kit part number printed on the boiler rating
plate is the only one to be used when installing on combustible
floors. The boiler must not be installed on carpeting.
C. If boiler is to be located over buried conduit containing electric
wires or telephone cables, consult local codes or the National
Board of Fire Underwriters for specific requirements.
CHIMNEY RECOMMENDATIONS
Full of
HEIGHT:15 ft. (minimum) from draft
hood skirt to top of chimney.
INSIDE DIAMETER: Same as dimen-
sion C (or larger).
NOTE: Larger chimney may be
190
required if two or more boilers or a boil-
er and another appliance are vented to
250
a single chimney.
310
Slant/Fin supplies vent dampers by
365
several manufacturers. Some are
smaller than the indicated "G maxi-
425
mum".
7000
8000
9000
10000
50
50
51
51
58
59
59
60
52
52
53
53
61
62
63
63
3
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