Boyertown Solaia CSL6230 - CSL12590 Cast Iron Boiler - Manual (Page 7)

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When a boiler is located in an unconfined space in a building of conventional frame or masonry
construction infiltration may provide adequate air for combustion and ventilation. If there is any doubt,
nstall air supply provisions for combustion and ventilation air. i
When a boiler is located in a confined space and air for combustion and room ventilation is from
inside buildings, the confined space shall be provided with two permanent openings, one starting 12
inches from the top and one 12 inches from the bottom of the enclosed space. Each opening shall
have a minimum free area of 1 square inch per one thousand (1,000) BTU/HR of the total input
rating of all appliances in the enclosed space, but must not be less than one hundred (100) square
inches. These openings must freely communicate with the interior areas having adequate
infiltration from the outside.
When a boiler is installed in a confined space, or in a building of unusually tight construction, air for
combustion and room ventilation must be obtained from the outdoors by means of two permanent openings
one starting 12 inches from the top and one 12 inches from the bottom of the enclosed space. When air is
taken through the outside wall or vertical ducts, at least one square inch of free opening must be provided per
4000 Btu/Hr. When air is taken through horizontal ducts at least one square inch of free opening must be
provided per 2000Bth/Hr. The minimum dimensions of rectangular air ducts shall not be less than 3 inches.
In calculating free area using louvers, grills or screens for the above, consideration shall be given to their
blocking effect. Screens used shall not be smaller than ¼ inch mesh. If free area through a design of louver
or grill is known, it should be used in calculating the opening size required to provide the free area specified.
If the design and free area is not known, it may be assumed that wood louvers will have 20-25% free area
and metal louvers and grills will have 60-75% free area.
Louvers and grills shall be fixed in the open position or interlocked with the boiler so that they are opened
automatically during boiler operation.
Boiler Location
Warning: Never install the boiler on top of combustible flooring. Never install the boiler in
an area where combustible materials, gasoline or any other products containing flammable vapors
or liquids are stored.
Locate the boiler in an area that provides good access to the unit. To provide the best possible serviceability
the boiler should be installed using the minimum recommended service and accessibility clearances as
previously listed. Under no circumstances should the unit be installed next to combustible materials with
learances less than listed in installation clearances above. c
The boiler should be installed on a level, flat concrete floor or pad that is structurally sound and will support
the combined weight of the boiler when filled with water. This boiler is designed to be installed on
noncombustible flooring only.
The boiler should be installed as close to the chimney as possible while still being located centrally to the
piping system.
Boiler Block Assembly
All boilers are shipped as an assembled block. If it is necessary to split the block into sections for
installation purposes reassemble the sections as follows:
To assemble split blocks, move the sections into line facing each other. Sections may be slid along boards
placed beneath the sections. Inspect nipple ports for damage or burrs. Remove any burrs by brushing the
ports very lightly. Remove old section sealant from the castings. Wipe the push nipples and nipple ports
with a clean cloth. Apply a film of nipple compound to both nipple and port. Install the nipple in the port
and then seal by hitting with a rubber mallet. Apply section sealant to one section only and slide the
sections together. Install the four draw rods. Draw the sections together until the sections make iron to iron
contact at a point around the top and bottom ports of each section. Check to ensure that the combustion
chamber is sealed using a flash light or other lighting device. Place the light into the combustion chamber