Scott CEN-PAQ User manual

CEN-PAQ
Short Duration Self-contained Breathing Apparatus
User Instructions
Article No. 1034919
Issue H 08. 2005

i
Self-contained Breathing Apparatus
Contents
WARNINGS................................................................................................................................................................. ii
1. INTRODUCTION.............................................................................................................................................1
1.1 IMPORTANT ...............................................................................................................................................1
1.2 BREATHABLE AIR......................................................................................................................................1
1.3 COMPRESSED AIR AIRLINE SUPPLIES...................................................................................................1
1.4 APPARATUS DURATION ...........................................................................................................................2
1.5 PERSONNEL TRAINING ............................................................................................................................2
1.6 SERVICING.................................................................................................................................................2
1.7 SPARE PARTS AND ACCESSORIES ........................................................................................................3
1.8 NOTIFIED BODIES.....................................................................................................................................3
2. TECHNICAL DESCRIPTION ..........................................................................................................................3
2.1 PNEUMATICS.............................................................................................................................................4
2.2 REDUCER...................................................................................................................................................4
2.3 DEMAND VALVE ........................................................................................................................................4
2.4 FACEMASK.................................................................................................................................................5
3. QUALITY ATTRIBUTES .................................................................................................................................5
3.1 NOTIFIED BODIES.....................................................................................................................................5
4. CHECK APPARATUS.....................................................................................................................................6
4.1 FIT FULLY CHARGED CYLINDER.............................................................................................................6
4.2 CHECK DEMAND VALVE...........................................................................................................................6
4.3 CHECK CYLINDER PRESSURE / LEAK TEST..........................................................................................7
4.4 WHISTLE TEST..........................................................................................................................................7
4.5 FIT CLEAN FACEMASK .............................................................................................................................7
4.6 CHECK APPARATUS .................................................................................................................................7
5. DONNING & OPERATING PROCEDURE – Standard Apparatus ...............................................................8
5.1 DON APPARATUS......................................................................................................................................8
5.2 CHECK DEMAND VALVE...........................................................................................................................8
5.3 OPEN CYLINDER VALVE...........................................................................................................................9
5.4 DON FACEMASK........................................................................................................................................9
5.5 POSITIVE PRESSURE TEST.....................................................................................................................9
5.6 WHISTLE / FACESEAL TEST ....................................................................................................................9
5.7 CHECK CYLINDER PRESSURE ..............................................................................................................10
6. DONNING & OPERATING PROCEDURE – Airline Apparatus..................................................................10
6.1 DON APPARATUS....................................................................................................................................10
6.2 CHECK DEMAND VALVE.........................................................................................................................11
6.3 CONNECT SUPPLY..................................................................................................................................11
6.4 FIT FACEMASK ........................................................................................................................................11
6.5 POSITIVE PRESSURE TEST...................................................................................................................11
6.6 FACESEAL TEST......................................................................................................................................12
6.7 OPERATING CYLINDER SUPPLY ...........................................................................................................12
7. DOFFING INSTRUCTIONS ..........................................................................................................................13
7.1 REMOVE FACEMASK ..............................................................................................................................13
7.2 TURN OFF CYLINDER VALVE / DISCONNECT SUPPLY.......................................................................13
7.3 REMOVE APPARATUS ............................................................................................................................14
7.4 CLEAN & TEST APPARATUS ..................................................................................................................14
8. AFTER USE ..................................................................................................................................................14
8.1 CLEAN FACEMASK..................................................................................................................................14
8.2 CLEAN APPARATUS................................................................................................................................15
8.3 CHECK APPARATUS ...............................................................................................................................15
8.4 RECORD TEST DETAILS.........................................................................................................................15
8.5 STORAGE.................................................................................................................................................16
9. SCHEDULED MAINTENANCE.....................................................................................................................16
9.1 MONTHLY.................................................................................................................................................16
9.2 ANNUALLY ...............................................................................................................................................16
Registered office: Scott Health and Safety Limited, Pimbo Road, West Pimbo,
Skelmersdale, Lancashire, WN8 9RA, United Kingdom.

ii
WARNINGS
Please Read Carefully and Fully Understand
This manual is for use by personnel trained in the use and care of compressed air
breathing apparatus, and MUST NOT be used as a self-teaching guide by untrained users.
Failure to understand or adhere to the CEN-PAQ user instructions may result in injury or
death.
Scott Health and Safety Limited have taken great care to ensure that the information in
this manual is accurate, complete and clear. However, Training & Technical Support
Services will be pleased to clarify any points in the manual and answer questions on
SCOTT breathing apparatus.
The following warnings are in accordance with certifying authority requirements
and apply to the use of breathing apparatus in general:
Breathing apparatus users must be fully trained in the use and care of self-
contained, compressed air breathing apparatus.
Ensure that the selection of the apparatus type is sufficient for the tasks
being undertaken and the hazards likely to be encountered. Please refer to
National Regulations for guidance.
Adequate protection may not be provided in certain highly toxic
atmospheres.
The apparatus must be tested and serviced in accordance with Section 9 -
Scheduled Maintenance and the notes in Section 1 under Servicing.
The quality of air used to supply and charge breathing apparatus must meet
the requirements of EN 12021 : 1995. See Section 1 for details.
Ensure that a good seal can be obtained between the face and facemask.
The wearing of beards, side-burns or spectacles may adversely affect the
sealing of a facemask to the wearer's face.
At high work rates, facemask pressure may become negative at peak
inhalation.
The apparatus is not designed for use underwater.
The waistcoat/harness must not be used as a vehicle seat restraint.
DISCLAIMER
Failure to comply with these instructions or misuse of the apparatus may result in:
death, injury or material damage, and invalidate any warranty or insurance claims.
COPYRIGHT
This manual must not be copied in part or in whole, or used for purposes other than its
intended purpose without the written permission of Scott Health and Safety Limited.

CEN-PAQ
1
1. INTRODUCTION
1.1 IMPORTANT
CEN-PAQ must be serviced in
accordance with the Servicing Schedule
on at least an annual basis. Please refer
to notes under Servicing.
These instructions for the use, care and
maintenance of the apparatus must be
followed to ensure the correct and safe
operation of CEN-PAQ.
For any enquiries regarding the use of
SCOTT breathing apparatus, please
contact Training & Technical Support
Services at Scott Health and Safety
Limited.
1.2 BREATHABLE AIR
Air used to supply or charge breathing air
may be natural or synthetic. The
composition of breathable air is given in
Table 1.
COMPONENT MASS %
(Dry Air)
VOLUME %
(Dry Air)
OXYGEN 23.14 20.948
NITROGEN 75.52 78.08
ARGON 1.29 0.93
CARBON
DIOXIDE 0.05 0.031 4
HYDROGEN 0.000 003 0.000 05
NEON 0.001 270 0.001 818
HELIUM 0.000 037 0.000 524
KRYPTON 0.000 330 0.000 114
XENON 0.000 039 0.000 009
Table 1: Breathable Air
There is an increased fire risk when the
oxygen content is above the value shown
above.
The purity/quality of air used to supply
and charge breathing apparatus should
be tested periodically in accordance with
national regulations.
Unless specified otherwise, the
contaminants shall not exceed the
permissible exposure level.
National regulations must be observed.
The mineral oil content shall be such that
the air is without the odour of oil. The
odour threshold is in the region of 0.3
mg/m
3
.
The water content shall not exceed 50
mg/m
3
for 200 bar apparatus and 30
mg/m
3
for 300 bar apparatus.
For airline apparatus, air must be used
with a dew-point sufficiently low to
prevent internal freezing.
1.3 COMPRESSED AIR
AIRLINE SUPPLIES
Air for use with compressed air airlines
must conform to prEN 12021 : 1995 and
must have a dew point sufficiently low to
prevent internal freezing when apparatus
is used in temperatures below 4°C.
No. of Wearers Airflow (L/min.)
1
2
3
4
300
450
750
900
Table 2
Airline pressure must be between 5.0 -
9.0 bar (70 - 130psi). Airflow supply
capacity for a single airline is given in
Table 2.
Generally, each additional wearer
requires an extra 150 litres/minute, each
additional pair of wearers requires 300
L/min for one wearer and 450 L/min for
two wearers. All measurements must be
taken at the wearer end of the airline.
Example: for 8 users (4 pairs) the
recommended flow is 4 x (300 + 150) =
1800 litres/minute.
An Airline Flow Tester is available from
Scott Health and Safety Limited under
Article Number 1035978.

CEN-PAQ
2
Compressed air airlines used with
CEN-PAQ must be SCOTT products,
approved to EN 139.
Ensure that hoses used in an explosive
or inflammable atmosphere are marked
ANTI-STATIC – EN 139.
Cost effective PVC hoses may be used in
other atmospheres.
SCOTT manufacture a range of anti-
static and PVC hoses, in lengths ranging
from 15m to 60m. Customer Services
will be pleased to advise on price and
delivery.
1.4 APPARATUS DURATION
All durations quoted are nominal, based
on an Average Wearer Consumption
Rate of 40 litres/minute and FULLY
CHARGED cylinders. Actual Wearer
Consumption rates vary due to many
factors, such as:
1. Workload: high work rates increase
consumption rates.
2. Weight of apparatus and use of
heavy or restrictive clothing.
3. Work environments with extremes
of heat or cold.
4. Physical fitness of the wearer.
5. Other factors include emotional
stress and fatigue.
It is important that all wearers are aware
of these factors and take account of them
when assessing cylinder duration.
The Total Duration for the apparatus is
calculated to be 15 minutes for 200 bar
cylinders and 20 minutes for 300 bar
cylinders based on a free air capacity of
600 or 820 litres and an Average Wearer
Consumption Rate of 40 litres/minute.
The Warning Period is calculated to be 5
minutes based on a 68 bar whistle and a
3 litre cylinder.
The Nominal Duration for the apparatus
is therefore 10 or 15 minutes.
1.5 PERSONNEL TRAINING
Personnel who use self-contained,
compressed air breathing apparatus must
be fully trained in accordance with these
instructions and national regulations.
These instructions cannot replace an
accredited training course run by fully
qualified instructors in the proper and
safe use of SCOTT breathing apparatus.
Please contact Training & Technical
Support Services or your SCOTT
distributor for training course details.
Training & Technical Support
Services:
Scott Health and Safety Limited
Pimbo Road, West Pimbo,
Skelmersdale, Lancashire,
WN8 9RA, United Kingdom.
Tel: [phone]
Fax: [phone]
1.6 SERVICING
CEN-PAQ must be serviced at scheduled
intervals by personnel who have
completed a formal training course and
hold a current certificate for servicing and
repairing SCOTT breathing apparatus.
Details of the servicing schedule are
contained in the SCOTT CEN-PAQ
Service Manual, copies of which can only
be obtained by registered holders of a
current certificate.
Your SCOTT distributor or Training &
Technical Support Services will be
pleased to provide training course details
and quotes for service contracts. Please
see above for contact details.