Storage; Cold Weather Operation; Suggested Procedures For Cold Weather Operation - MSA PremAire Cadet Escape G1 Manual De Instrucciones

NOTE: When refilling a PremAire Cadet Escape Respirator cylinder and valve assembly, do not open
the cylinder valve knob. The high pressure fill port is directly exposed to cylinder pressure. The fill port
is independent of the cylinder valve knob position. The fill port includes a check valve that prevents
cylinder air from escaping through the fill port when the filling attachment is removed.
Remove the dust cap from the cylinder and valve assembly fill port. Appropriately connect the filling
system to the fill port and refill. Terminate the filling when the pressure reaches the service pressure
and allow the cylinder to cool to room temperature. If necessary, top-off the cylinder such that the
service pressure is attained with the cylinder at a temperature of 70°F. Appropriately disconnect the
filling system from the fill port. Apply a leak detecting solution to the fill port check valve to determine
if there is leakage. Replace the fill port dust cap. If there is no leakage, the cylinder and valve
assembly is ready for service.
4.6

Storage

Do not store the respirator or spare cylinder and valve assemblies within or near an area where the
respirator can or might be exposed to any substances that will attack any part of the respirator,
causing the respirator NOT to perform as designed and approved.
5

Cold Weather Operation

5.1

Suggested Procedures for Cold Weather Operation

Moisture can cause problems in respirators if it freezes. However, moisture can cause freezing prob-
lems even if the surrounding air is above freezing. This is due to air flowing from the cylinder through
the regulator drops from cylinder pressure to close to atmospheric pressure very quickly. As it does
so it expands, causing the air and the regulator to become colder. Although the surrounding temper-
ature may be warmer than 32°F, the temperature inside the regulator may be lower. Any water inside
could turn to ice and restrict airflow.
To keep moisture from entering the regulator, stow the regulator in the stand-by mount.
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When the respirator is away from heat, water spray can freeze on the regulator surface. Ice can
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build up and freeze the buttons and bypass valve. Before entering or re-entering a hazardous
atmosphere, make sure the buttons and bypass valve are ice-free and operating properly. Period-
ically, check the bypass to be sure it is ice-free.
NIOSH certification requires a nosecup at temperatures below 32°F. The nosecup reduces lens
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fogging and must be used whenever freezing conditions are encountered.
During cleaning, be careful to keep water from entering the regulator.
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Thoroughly dry the facepiece and mask mounted regulator after cleaning and disinfecting. Follow
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Confidence Plus® Cleaning Solution Instructions.
PremAire Cadet Escape G1
Cold Weather Operation
US
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