Dräger PAS AirPack 1 Instructions For Use

®
PAS AirPack 1
Airline breathing air supply system
1 For your safety
1.1 General safety statements
● Before using this product, carefully read the Instructions for Use.
● Strictly follow the Instructions for Use. The user must fully understand
and strictly observe the instructions. Use the product only for the
purposes specified in the Intended Use section of this document.
● Do not dispose of the Instructions for Use. Ensure that they are
retained and appropriately used by the product user.
● Only fully trained and competent users are permitted to use this
product.
● Comply with all local and national rules and regulations associated
with this product.
● Only trained and competent personnel are permitted to inspect, repair
and service the product. Dräger recommends a Dräger service
contract for all maintenance activities and that all repairs are carried
out by Dräger.
● Properly trained service personnel must inspect and service this
product as detailed in the Maintenance section of this document.
● Use only genuine Dräger spare parts and accessories, or the proper
functioning of the product may be impaired.
● Do not use a faulty or incomplete product, and do not modify the
product.
● Notify Dräger in the event of any component fault or failure.
● The air supply shall meet the requirements for breathing air according to
EN 12021.
1.2 Definitions of alert icons
Alert icons are used in this document to provide and highlight text that
requires a greater awareness by the user. A definition of the meaning of
each icon is as follows:
WARNING
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
could result in physical injury or damage to the product or
environment. It may also be used to alert against unsafe practices.
2 Description
2.1 Product overview
The Dräger PAS AirPack 1 is a compact air supply system that uses
breathing air inputs to provide a medium-pressure output (independent air
supply) for one or two breathing apparatus wearers.
There are three PAS AirPack 1 versions available:
● A two-wheeled trolley version with an integral hose reel (Fig 1).
● A two-wheeled trolley version without a hose reel.
● A carrying-frame version without a hose reel (Fig 2).
Breathing air inputs are from high and/or medium-pressure sources. The
high-pressure input is from one or two breathing air cylinders – the
equipment has storage capacity for two 4.7 to 12 litre cylinders. The
medium-pressure input is a regulated external supply from a factory airline
or compressor.
Referring to Fig 1, the features and components of the PAS AirPack 1
pneumatic system are:
● The high-pressure input connectors (7) are standard cylinder-type
threaded connectors.
● The medium-pressure input connector (9) is a male quick connector
which has an internal non-return valve.
● There is a medium-pressure output connector on the hose reel (11) if
fitted, and on the body of the pneumatic assembly (4). Each is a female
quick connector, which has a valve that self-seals when disconnected.
● A high-pressure gauge (1) indicates cylinder pressure.
● A medium-pressure gauge (2) indicates output pressure.
● A high-pressure whistle (10) sounds to indicate low cylinder pressure.
● A medium-pressure whistle (3) sounds to indicate low output pressure.
If the PAS AirPack 1 is using an external medium-pressure supply, the
whistle indicates that the external supply pressure is low.
● An internal pressure reducer converts the high-pressure input to a
medium-pressure output.
● A relief valve (5) in the medium-pressure system and bleed valves (8)
on the high-pressure connectors release air from the system when
operated.
● If fitted, the hose reel has 50 m of hose on a rotating drum. The drum
has an inertia brake that prevents overrun of the drum as the hose is
pulled out.
The PAS AirPack 1 pneumatic system allows the user to remove depleted
cylinders and replace them with fully charged cylinders when required.
Repeatedly replacing alternate depleted cylinders can provide an
uninterrupted air supply to the attached breathing apparatus wearers.
Internal non-return valves (Fig 1, Item 6) ensure that air from the other
cylinder can not escape when a depleted cylinder is removed.
2.2 Intended use
The PAS AirPack 1 is used with breathing air cylinders and an external
breathing air supply (factory airline or compressor) to provide a medium-
pressure output. When used with approved airline equipment, it supplies
breathing air to one or two breathing apparatus wearers.
It is intended to be used with only the air cylinders connected (self-contained
use), or with the air cylinders and an external medium-pressure supply
connected (external-supply use). When it is used with an external supply the
cylinders provide a backup air supply.
The breathing apparatus, cylinders and other accessories used with this
product must be assembled in an approved configuration. See Section 10
for the compatible airline equipment and configurations. Contact Dräger for
further information.
2.3 Approvals
The European standards, guidelines, and directives according to which
this product is approved are specified in the declaration of conformity (see
declaration of conformity or www.draeger.com/product-certificates).
3352691
© Dräger Safety UK Limited
Edition 12 – October 2018
Subject to alteration
PAS ® is a registered trade mark of Dräger
1
1
10
11
9
8 7
2
3 4
3228
5 6
3
2
1
3226
2.4 Use in potentially explosive atmospheres
● The PAS AirPack Series is type tested as suitable for use in potentially
explosive atmospheres. The combinations are suitable for use in
hazardous areas of Zone 1 and 2 for explosion group IIA and IIB and
for Zone 21 and 22.
2.4.1 Special conditions for safe use
The Airline Systems shall not be used in the vicinity of processes where
high charges are generated if explosive atmospheres are present (for
example, where rapid filling processes are carried out – big bag filling – or
many actions of fast limit surface separation are done). In such cases,
hazardously high charges of the Airline Systems may occur due to
electrostatic induction.
The breathing apparatus and the compressed air cylinders which are used in
combination with the Airline Systems each have to meet the applicable
requirements of the equipment categories and explosion groups relevant to
the respective Airline System.
The Airline Systems have to be moved manually inside explosive
atmospheres by the user (pushing or pulling). It is mandatory to use floors
in Zone 1 and Zone 21 that are able to discharge electricity where dusts of
minimum ignition energies < 10 mJ are present.
If air supply hoses are used with a total length > 50 m, then the couplings
which are connected to the hoses in a conductive manner have to be
provided with an additional earth contact (after a hose length of 50 m) and
integrated into the operating eqipotential bonding.
● Do not charge the cylinder in a potentially explosive atmosphere.
2.5 Explanation of marking and symbols
Refer to the relevant authority for explanation of approval body symbols
and markings. Examples of other marking on the product:
BRBA-1359 – Dräger serial number
08/09 – Month and year of manufacture
3353261 – Dräger part number
HP – High pressure
MP – Medium pressure
– Medium-pressure input
– Medium-pressure output
– Relief valve
Where appropriate, the marking "F" on the apparatus and CAST
(compressed-air supply tube) indicates that both can be used where
flammability may be a risk. Marking on the compressed-air supply tube
indicates that the tube is heat resistant (H) and/or antistatic (S).
Instructions for Use
3 Use
WARNING
2
The cylinder and airline air quality shall meet the requirements for
breathing air according to EN 12021. Do not use oxygen or oxygen-
3
enriched air. The moisture content of breathing air should be
controlled within the EN 12021 limits to avoid freezing the apparatus.
4
Carry out a risk assessment of the workplace to ensure that it is
not possible to connect to any airline supply other than breathable
air (e.g. Nitrox).
Before using airline equipment, ensure that the air supply meets
the air quality requirements, and complies with the airline
pressure, flow and hose requirements (see Section 8 and
Section 10), and has been issued with a permit for use if
necessary.
Position the PAS AirPack 1 in a safe and uncontaminated area
where it cannot be damaged.
6 5
Dräger recommend that the user carries out a risk assessment to
establish local procedures to be followed in the event of failure of
the air supply.
3754
Do not attempt to lift or carry the PAS AirPack 1 carrying frame
version on your own. Observe the relevant manual handling and
safety procedures when moving the carrying frame. The weight
without cylinders is approximately 11.5 kg.
CAUTION
Impact damage to the pneumatic assembly may prevent valve
connection or cause an air leak. Handle the equipment with care.
When remote wearers are connected to the PAS AirPack 1, a controller
must be appointed to monitor the gauges and whistles of the product
throughout the operation. The controller must maintain the air supply to the
3753
wearers and must ensure that any precautionary or emergency signals are
conveyed to the remote wearers in line with local procedures and these
Instructions for Use.
3.1 Preparation for use
1. Carry out a visual inspection (see Section 3.4.1).
2. Fit the air cylinder or cylinders (see Section 3.4.2).
3. Carry out a full functional test (see Section 3.4.5).
WARNING
Incorrect airline equipment configurations may result in insufficient
3248
air flow to breathing apparatus wearers or increase the possibility
of air supply failure. See Section 10 for the compatible airline
equipment and configurations.
Prepare the breathing apparatus for use (see the Instructions for
Use supplied with the breathing apparatus). Observe the safety
information and carry out all preparation and functional testing
tasks before use.
Do not use the PAS AirPack 1 to supply air to more than two
breathing apparatus wearers at any time. If a controller is
appointed, and is required to wear breathing apparatus and to
connect to the equipment then only one other user is permitted.
3227
4. Connect the airline equipment (extension hoses, Y-piece, etc.) as
follows:
○ On hose reel versions, pull out the hose as required and connect
the airline equipment to the output connector on the hose reel (Fig 1,
Item 11). Use the output connector on the pneumatic assembly
(Fig 1, Item 4) for connecting the controller if required.
○ On versions without a hose reel, connect the airline equipment to
the output connector on the pneumatic assembly (Fig 3).
5. Depending on the required use, do one of the following:
○ Self-contained use – Fully open one cylinder valve.
○ External-supply use – Connect the external supply (see
Section 3.4.4). Ensure that both cylinder valves are fully closed.
6. Put on the breathing apparatus and connect to the airline equipment
(Fig 4 shows a typical breathing apparatus connector).
3.2 During use
WARNING
An appointed controller or the breathing apparatus wearers must
monitor the PAS AirPack 1 gauges and whistles during use.
Procedures to warn and evacuate remote users must be in place.
The effective working duration of the equipment is dependent on
the initial air supply available and the breathing rate of the wearers.
Do not commence any operation using a cylinder that is less than
80 per cent full.
At very high work rates the pressure in the face mask of a
breathing apparatus wearer may become negative at peak
inhalation flow.
● Breathe normally and proceed to the work area taking care with any
airline equipment.
● On receipt of an evacuation signal, withdraw immediately to a safe
area (see local instructions for full evacuation procedures).
● When the task is complete, withdraw to a safe area before removing
the breathing apparatus.
● The high-pressure and medium-pressure whistles indicate that there is
low pressure in the associated system. If a warning whistle sounds,
carry out the necessary actions depending on the configuration of the
PAS AirPack 1 (see Section 3.2.1 to 3.2.3).
3.2.1 Medium-pressure whistle sounds during external-supply use
Fully open one cylinder valve, and disconnect the external supply from the
PAS AirPack 1. Continue the task as a self-contained use task.
3.2.2 Medium-pressure whistle sounds during self-contained use
Breathing apparatus wearers must proceed in line with breathing
apparatus Instructions for Use and local procedures.
3.2.3 High-pressure whistle sounds during self-contained use
● If there is a second/offline fully-charged cylinder connected to the
PAS AirPack 1, proceed as follows:
a. Fully open the valve of the second/offline cylinder.
Draeger Safety UK Limited
Ullswater Close
Blyth, NE24 4RG
United Kingdom
Tel +44 1670 352 891
Fax +44 1670 356 266
www.draeger.com
3352691 (A3-D-P) Page 1 of 3