Bryant 234B - Manual (Page 6)

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LOCATING THE UNIT
Consult local building codes or ordinances that may
apply.
1. The boiler should be installed on a level founda­
tion. Metal shims may be used to level if required.
Locate boiler near gas vent or chimney.
2. Combustible Floors - When the boiler is installed
on a combustible floor it is necessary to ¡nsulote
the floor» Bryqnt supplies, as optional equipment, □
combustible floor installation kit. This kit contains
a rectangular plate of galvanized steel with □
matching piece of insulating material. Fasten the
insulation end steel plate to the combustible floor
and place the boiler on fop of the steel plate.
3. Maintain at least 6" from combustible material
on ail sides.
4. Leave enough room for service access. Consult
local approval agency; some require □ minimum of
24" for service access.
5. When unit is installed in a small room, or a build­
ing of roiatiyely air-tight'construction, provide air
for combustion and ventilat'iou. This air must be
supplied through two openings of equal area; one
located above the draft diverter relief opening and
the other near the floor. The total free area of each
opening should be equal to 1 square inch for each
1,000 BTU/Hr. of boiler input. There should be a
minimum of 100 square inches for each opening. If
ait openings are directly to outdoors, the minimum
free area should be 1 square .inch per 2,000 BTU per
hour or input rating, or in accordance with Z21.30-
1959 or latest edition of ^'American Standards .for
Inst^Uatiqii of Gas Appliances and Gas Pfpipg/'
6- Advise owner of necessity for keeping air pas­
sages to the boiler area free of obstructions. This
clearance is necessaiy so that combustion air can
enter freely into the combustion chamber. It is also
necessary to provide adequate ventilating air.
FLUE CONNECTIONS
Make sure draft hood furnished with boiler is instal­
led without modifications. The following is standard
practice for installing the flue pipe. In addition,
consult local codes and gas company requirements.
1. Flue pipe must be of the same si^re as the outlet
collar on the draft hood.
2. Flue pipe must slope upward from boiler to chim.- '
ney. Minimum slope is 1/4 inch upward per linear*
foot of flue pipe,
3. Run pipe as directly as possible with a minimum
number of turns.
4. Do not connect into chimney serving an open fire­
place,
5. End of flue pipe must be flush with inner face of
chimney liner.
6. Rigidly support pipe with hangers and straps.
7. Chimneys should extend at least two feet above
any object within a radius of 15 feet.
8. All flue pipe extended through the roof should be
equipped with a hood.
9. The boiler may.be installed with either a galvan­
ized Type C vent or a listed . Type B yent, at the
option of the installer. Where a Type C flue or vent
connector is used, it shall have a clearance of 6"
between its surface and any combustible material.
If a Type B flue or vent connector is used, clear­
ance from its surface to any combustible material
shall be in accordance with its listing. Consult
local codes to insure correctness.
10. Where two or more appliances Vent into a com­
mon flue, the area of the common flue should at
least equal the area of the largest flue or yent con­
nector plus 50% of the areas of the additional flues
or vent connectors.
GAS SUPPLY LINE
Comply with applicable codes and regulations.
It is good practice to run a separate gas line direct­
ly to the gas meter for supplying central heating
boilers. This line should be at least as large as the
-manual "gas shut-off-supplied.. If . the calculated pres^
sure drop exceeds 0.3 inches water, the line should
be run at least one size larger than the usual gas
shut-off. In no case should the drop exceed 0.3
inches water.
The pipe should be. supported with adequate straps
or pipe hangers. Provide a drip leg at the bottom of
the supply riser. Drip leg may extend down to floor
to help support the weight of the gas. supply line.
Install a ground joint union between the riser or
drip leg and the boiler controls. .
Joint compound (pipe dope) which is resistani to the
action of liquefied petroleum gases should be ap-
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