Chimney Requirements; Minimum Clearance; Draft Hood; Vent Piping - Slant/Fin SE-70 Installation And Operating Instructions Manual

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WARNING
SPECIAL ATTENTION FOR LIQUEFIED PETROLEUM
(L.P.) PROPANE GAS-FIRED BOILER INSTALLATIONS
LPG appliances (boilers) shall be installed in accordance
with applicable provisions of NFPA 58 ( Liquefied Petroleum
Gas Code) latest edition for installations in US and
CAN/CGA B149.1 latest edition for installations in Canada.
Liquefied Petroleum (LP) propane gas is heavier than air
therefore Propane gas accumulate at floor level. If you sus-
pect a leak, do not attempt to operate boiler. A spark or flame
from the appliance (boiler) or other sources may ignite the
accumulated propane gas causing an explosion or fire. It is
recommended that inspections for gas leaks be performed
periodically by licensed professional and that leak detection
devices be installed as a further safety measure.

CHIMNEY REQUIREMENTS

A. Sentinel boilers may be vented into a masonry vitreous tile-
lined chimney or type "B" venting system NOT EXPOSED
to the OUTDOORS below the roof line.
Venting and sizing of venting system must be in accor-
dance with the National Fuel Gas Code ANSI Z223.1,
NFPA 54, -latest edition which will be referred to as the
National Fuel Gas Code. Local codes apply.
If a masonry chimney is exposed to the outdoors on one or
more sides below the roof line (exterior chimney), ONE of
the following options apply:
1. Chimney must be re-lined with a metallic liner. When
this is done, the chimney will be considered NOT
exposed to the outdoors and the requirements of the
National Fuel Gas Code for NON-exposed chimneys
and/or local codes will apply.
2. If an exposed tile-lined chimney is to be used WITH-
OUT a metallic liner, the boiler must first meet the
requirements of the National Fuel Gas Code:
B. If an existing boiler is removed from a common venting
system, the common venting system may be too large
for proper venting of the remaining appliances connected
to the common vent. Follow the test procedure shown in
Appendix "A" on page 19 of this manual to insure proper
operation of venting system and appliances.
C. Inspect for proper and tight construction. Any restrictions
or obstructions must be removed. An existing chimney may
require cleaning.
D. Chimney or vent must extend at least 3 feet above any
ridge within 10 feet of the chimney.
MINIMUM CLEARANCES FOR COMBUSTIBLE
CONSTRUCTIONS
A. Minimum boiler clearances shall be as follows:
B. Provide accessibility clearance of 24" on sides requiring
servicing and 18" on sides used for passage.
C. All minimum clearances shown above must be met. This may
result in increased values of some minimum clearances in
order to maintain the minimum clearances of others.
D. Clearance from hot water pipes shall be 1 inch**.
** At points where hot water pipes emerge from a floor, wall or ceiling, the
clearance at the opening through the finished floor, wall or ceiling boards
may not be less than 1/2 inch. Each such opening shall be covered with
a plate of non-combustible material.
SENTINEL SERIES
MINIMUM CLEARANCES FOR COMBUSTIBLE CONSTRUCTION.
MINIMUM ALCOVE AND CLOSET CLEARANCE.
Front
Rear
Left Side
Right Side
Top (above boiler)
Flue Connector
SAFETY
KEEP THE BOILER AREA CLEAR AND FREE FROM
COMBUSTIBLE MATERIALS, GASOLINE AND OTHER
FLAMMABLE VAPORS AND LIQUIDS.

DRAFT HOOD

The draft hood supplied with SE models is part of the listed
boiler assembly. DO NOT alter the hood. See dimensions,
page 2.
Attach the hood to the boiler flue outlet. Connect flue pipe full
size of hood outlet. Vent damper must be installed on the out-
let side of the hood. See Vent Piping, below.

VENT PIPING

A. Vent piping installation must be in accordance with ANSI
Z223.1-latest edition, National Fuel Gas Code, Venting of
Equipment. Other local codes may also apply and must be
followed.
B. Boiler vent pipe must be the full diameter of the boiler
outlet. See dimensions, page 2.
C. If more than one appliance vents into a common breeching,
the area of the breeching must be equal to the area of the
largest vent plus 50% of the area of the additional vent areas.
Vent connectors serving appliances vented by natural draft
shall not be connected into any portion of mechanical draft
systems operating under positive pressure. Horizontal
breeching or vent pipe should be as high as possible, consis-
tent with codes, so that vertical vents from appliances will
have a high rise above draft diverter openings. All horizontal
runs must slope upwards not less than 1/4 inch per foot of
run. Horizontal portions of the venting system must be
Sentinel
6"
6"
6"
12"
28"
6"