10.1.2
When using supplied air, the user must ensure that the cylinder valve is closed. Failure to do
so may result in reduced cylinder duration.
10.1.3
Airline respirators can be used only when the respirators are supplied with respirable air
meeting the requirements of CGA G-7.1 Grade D or higher quality.
10.1.4
When used as a combination apparatus, only 20% of the service pressure may be used on
entry.
10.1.5
This approval applies only when the device is supplied with respirable breathing air through 6
to 300 feet of hose at air pressures between 80 to 120 psi from a suitable compressed air
source.
10.1.6
Follow Donning Procedures located in Section 4.0 and Safety Checks in Section 4.2.
10.1.7
Plug airline hose from Frontier into supplied airline hose. Supplied air pressure shall be
between 80 to 120 psi. Close cylinder valve and continue to breathe normally. If supplied air
is interrupted, open cylinder valve fully, unplug airline hose and then exit to a safe area.
10.1.8
Take necessary actions to monitor the supplied air source pressure while operating with
supplied air.
10.1.9
To transfer from supplied air to cylinder air, open cylinder valve first. Disconnect supplied air
hose by retracting coupling sleeve.
10.2
EMERGENCY AIRLINE SYSTEM (EAS)
10.2.1
The NORTH Frontier EAS can be ordered with or without an airline attachment and is
attached to the left waist strap (Figure 40). The EAS socket will have a dust cover that must
be removed prior to use.
10.2.2
To disconnect the facepiece hose, hold the socket in one hand and push in on the male plug
(Figure 41). Then pull back on the socket sleeve to release. Remove dust cover from the
other Frontier, and firmly push facepiece hose into socket. Air will start flowing into the
facepiece.
10.2.3
After establishing airflow, immediately exit to a safe area.
21
NOTE
Care must be taken to avoid pulling on the supplied air hose. Doing so may cause hose stress or
failure.
NOTE
It is essential that individuals practice this procedure in a non-IDLH atmosphere prior to using the
EAS option. To simulate having an empty cylinder, close the cylinder, take a deep breath to deplete
the pneumatic pressure, then unplug the facepiece hose and plug into another Frontier EAS
attached to the left waist strap.
Содержание FRONTIER Series
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