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19A SERIES BOILER
INSTALLATION INSTRUCTIONS
5.COMBUSTION AND VENTILATION AIR
An adequate supply of air for the boiler room must be provided to allow complete combustion of fuel and ventilation of the room to avoid excessively high ambient temperature. Air inlet by natural ventilation directly from the outside shall have total free area of not less than one sq. in. per 14,000 BTU per hour of input of all fuel burning appliances in the boiler room.
Where combustion air must be obtained through ducts, see ANSI/NFPA 31 or ANSI Z223.1 for requirements.
If mechanical combustion air supply is required, the system must be approved by the local authorities, and should provide at least 30 CFM per gallon of oil and 0.25 CFM per MBH of gas input to the boilers.
Ventilation air, if required, must be in addition to the combustion air quantities called for above.
6.ASSEMBLY OF SECTIONS
When boilers are delivered to the job site, each item should be inspected closely for possible shipping damage. Scars or nicks in the port sealing surfaces may allow leakage. Do not attempt to use any section that has been damaged in the port seal area.
When ready to commence assembly, recommended on a level pad, place the angle rails in position parallel with each other with the 2" legs on the floor and measuring
CAUTION
Due to the fact that the sections are top heavy, it is absolutely necessary that the back section be supported in such a manner as to prevent its falling and causing potential serious bodily injury while preparing to add the next section. One such way would be to insert a piece of 3" x 36" piping in the lower port.
NOTE
Some sections may need shims under support feet to align with other sections.
Stand the back section in place with the feet on and in the angle iron rails. Support the section as required to prevent it from falling forward or rearward. Clean hydronic gasket recesses and rope groove with a stiff wire brush. Apply
CAUTION
Do not spray adhesive into the hydronic seal ports.
Apply a length of wicking avoiding bends and twists. Be sure ends extend past the cleanout cover opening. (See FIGURE
2)Place the upper and lower hydronic seals in the recessed section taking care not to dislodge the rope or the hydronic seals. Inspect the alignment of the sections through the open ports and, if properly aligned, install the draw rods with nuts drawn
See TABLE 2 for proper location of sections.
TABLE 2
3 SECT | F | H | B |
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4 SECT | F | P | H | B |
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5 SECT | F | H | P | H | B |
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6 SECT | F | P | H | P | H | B | |
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7 SECT | F | H | P | H | P | H B | |
CLEANOUT COVER
LOWER PORT
HEATING 
SURFACE
UPPER PORT
CERAMIC ROPE 
JOINT SEAL
FLOOR
8 SECT | F | P | H | P | H | P | H | B |
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9 SECT | F | P | H | P | H | P | H | P | B |
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10 SECT | F | P | P | H | P | H | P | H | P | B |
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11 SECT | F | P | P | P | H | P | H | P | H | P | B |
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12 SECT | F | P | P | P | P | H | P | H | P | H | P | B |
F = Front Section
P = Plain intermediate section
H = Heater intermediate
SECTIONAL VIEW
FIGURE 2
IMPORTANT
The upper and lower ports should be drawn up metal to metal around the outside of the hydronic seal. Metal to metal conditions will not occur at any other location. Avoid excessive torque on upper left and lower right draw rods, which may warp the section. See FIGURE 3 for correct alignment of the seal.
Assemble additional sections as described above.
After draw rods are hand tight, torque as shown in TABLE 3.
