Filter
Top Products
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.
S-34 2 8
1
⁄8"14
5
⁄8" 4 33" — — 6
1
⁄4" 190
S-60 3 11
1
⁄8"17
5
⁄8" 4 37" 4
1
⁄2"26"6
1
⁄4" 250
S-90 4 14
1
⁄8"20
5
⁄8" 5 37" 5
1
⁄2"25
1
⁄2"6
1
⁄4" 310
S-120 5 17
1
⁄8"23
5
⁄8" 6 37" 7
1
⁄2"25"6
1
⁄4" 365
S-150 6 20
1
⁄8"26
5
⁄8" 7 37" 8
1
⁄2"24
1
⁄2"8
1
⁄4" 425
SX-150 6 20
1
⁄8"26
5
⁄8"651
1
⁄2"10
1
⁄2"10
7
⁄8"6
1
⁄4" 425
SX-180 7 23
1
⁄8"29
5
⁄8"752
3
⁄4" 12" 10
7
⁄8"8
1
⁄4" 485
SX-210 8 26
1
⁄8"32
5
⁄8"752
3
⁄4"13
1
⁄2"10
7
⁄8"8
1
⁄4" 545
Boiler
Model
Gas
Type
2000 3000 4000 5000 6000
7000 8000 9000 10000
Orifice
Size for
Sea
Level
Orifice Sizes for High Altitudes
Includes 4% Reduction for Each 1000 Feet
Elevation - Feet
No. of
Sect.
Dimensions
(inches)
A B C D E FG
(max)
Approx.
Total Wt.
Full of
Water (lb.)
Natural 47 48 48 49 49 49 50 50 51 51
Propane 56 56 56 57 57 57 58 59 59 60
Natural 50 51 51 51 51 52 52 52 53 53
Propane 57 58 59 59 60 60 61 62 63 63
CHIMNEY RECOMMENDATIONS
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
required if two or more boilers or a boil-
er and another appliance are vented to
a single chimney.
Slant/Fin supplies vent dampers by
several manufacturers. Some are
smaller than the indicated “G maxi-
mum”.
3
Sentr y
Orifice indicated for sea level above are factory installed in boiler unless otherwise specified by the local authority.
See III page 10 f
or burner input adjustment.
Boiler
Model
S-34
S-60 thru S-150 and
SX-150 thru SX-210
Base Assembly
Sentry Boiler
Burners
Pilot
Burner
Access
Door
Gas Valve
INSTALLATION REQUIREMENTS