OPERATION
1.
To discharge carbon dioxide gas, remove pull out pin from control head and pull lever to open position.
2.
Run horn to point of attack on fire.
3.
Open horn valve by pushing stirrup handle forward.
4.
Direct gas at base of flame. As flame recedes, follow slowly, don't hurry. See detailed instruction below.
5.
To temporarily stop flow of gas, close horn valve.
A.
SURFACE FIRES
1.
Direct the discharge CLOSE to the edge of fire nearest you. Do not point the horn at the center of the flame. If it
is desired to drop the horn to an inaccessible fire, make certain the horn valve is in open position.
2.
Move the horn back and forth across base of the flame. Chase the flame slowly and deliberately as the fire is
extinguished. For bulkhead fires, direct the discharge at the bottom and work upward gradually as the fire
recedes.
3.
Continue to discharge gas until any smoldering parts are covered with "snow".
B.
ELECTRICAL FIRES - SWITCHBOARDS, MOTORS, ETC.
1.
Direct the gas into all openings on the burning substances and continue to apply the carbon dioxide after the
flame has been extinguished, until the burned substance is coated with "snow". This procedure will cool the
burned material and prevent any incandescent particles from reigniting.
2.
It is not necessary to remove the potential from the apparatus before applying carbon dioxide gas to the fire, as
the dielectric strength of carbon dioxide is greater than that of air. However, it is desirable to do this as soon as
possible to prevent the fire from spreading.
IMPORTANT: After fire has bean extinguished, leave horn valve open until all pressure is relieved from hose.
