HANCOM LIFECARE SCA 820H User manual

SCA 820H
Self-Contained Breathing Apparatus
User Manual
www.hancomlifecare.com
Hancom Lifecare puts safety rst.

02
Hancom Lifecare puts safety rst.
Hancom Lifecare
dreams of an accident -
free society.
ank you for purchasing Hancom Lifecare’s self-contained breathing apparatus ( SCA
820H). Before using the product, please be sure to familiarize yourself with how to use
it; the warnings and the cautions described in this User Manual are for the sake of your
safety.

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SCA 820H
CONTENTS
1. Warnings and Cautions 04
2. General Specifications 07
3. Composition and Characteristics 08
4. Items to Be Checked before Use 12
Mounting the Cylinder onto the Backframe & Harness Assembly 12
Airtightness Testing 12
Alarm Device 13
Facepiece 14
Demand valve 15
5. How to Use the SCBA 16
6. Cleaning and Inspection after Use 21
7. Storage 24
8. How to Store the Cylinder 24
9. Cautions When Using the Cylinder 24
10.Contents of the Warranty and Consulting Services for Users 26
SCA 820H
Self-Contained Breathing Apparatus
User Manual

04
Warnings and Cautions
1
■ Warnings and cautions are indicated by the following signs and meanings:
Warning
Before using the self-contained breathing apparatus (SCBA), please be sure to familiar-
ize yourself with how to use it and the warnings and the cautions described in this User
Manual, and receive sufcient training for the sake of your safety.
Our Company will not be liable for any accident caused by such acts as arbitrary modi-
cation or alteration of the product by the user.
Please note, in particular, that your self-contained breathing apparatus cannot be used
underwater or for scuba diving.
Please be careful not to allow any soapy water or solution to enter the demand valve or
the alarm device during a leak test or a washing process because this may cause the
equipment to malfunction during its use, thus posing serious risks to the wearer.
Taking off the facepiece in an area contaminated with toxic gas could lead to the loss of
the wearer’s life as a result of gas asphyxiation. Please be sure to move to a safe place
and then take off the facepiece there.
Using a strong detergent or corrosive agent in washing the cylinder could lead to the de-
struction of the cylinder due to stress-corrosion cracking, thus resulting in serious injury
or death.
Using an SCBA with a cracked or damaged demand valve could cause the wearer to
suffer serious injury or death. If the demand valve of your SCBA is cracked or damaged,
don’t ever use it but contact the After-Sales Service Team of our Company for inspection
and repair services.
Using the equipment with any water in the demand valve could cause it to malfunction.
Please be sure to remove any water from the demand valve before using your equipment.
If there’s something wrong with your SCBA, please do not try to repair it but contact the
After-Sales Service Team of our Company for repair or replacement. Our Company will
not be liable for any accident caused by any broken equipment that has not been repaired
by our After-Sales Service Team.
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Failure to follow the instructions could result in serious injury or death.
Failure to follow the instructions could result in personal injury or physical damage.
Caution
Warning
Warning

05
SCA 820H
Each self-contained breathing apparatus (SCBA) is a product designed for use by people
who engage in reghting operations at re scenes or who handle toxic gases or who
work at oxygen-decient sites. Please not use your SCBA for any purpose other than
those mentioned above.
If a worker begins to have difculty breathing, suffer from a headache or feel dizzy, or if
an odor is detected while he/she is using the SCBA, please have the worker stop working
immediately, check to conrm his/her health condition, and ascertain whether the SCBA
is safe or not.
The facepiece is made of synthetic rubberso a person who is allergic to such material
may suffer side effects on the skin. Please do not wear the facepiece if you are allergic
to synthetic rubber.
As the SCBA is heavier and larger in volume compared to general personal protective
equipment, wearing it in a narrow space where the wearer’s activity is limited could result
in a fatal injury.
Check for air leaks from any damaged portion or connection part of the medium-pressure
or high-pressure hose. If there’s something wrong, please contact the After-Sales Service
Team of our Company for inspection and repair services.
In the event of an air leak at any valve or hose connection, please stop using your SCBA
immediately and contact the After-Sales Service Team of our Company for inspection and
repair services.
Severe scratches on the visor surface are dangerous as they blur the wearer’s vision.
Please be sure to replace the scratched visor with a new one.
Fogging on the visor may blur the wearer’s vision. Please apply an anti-fog agent to the
visor before using it.
Please be careful, in particular when wearing the facepiece. Failure to secure a properly
close contact between the face and the facepiece due to the wearer’s physical features,
beard, hair, whiskers, and/or worn glasses could result in rapid air leakage, thus decreas-
ing the duration of usage.
Please inspect and replace the lter and oil in the air compressor periodically in order
to prevent the addition of any foreign material when lling the high-pressure air cylinder
(hereinafter referred to as the “cylinder”) with air.
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Caution
Caution

06
General specifications
2
Always wear and use the SCBA in a safe place free of air pollution.
If the demand valve fails to operate normally while you are using the SCBA, please
open the by-pass valve (emergency value) immediately so that you can breathe and then
escape to a safe place. Afterwards, please contact the After-Sales Service Team of our
Company for inspection and repair services.
If the exhaust valve fails to operate normally due to contamination from foreign mate-
rials, etc., you may feel uncomfortable breathing or air may leak. Please contact the
After-Sales Service Team of our Company for inspection and repair services.
The high pressure regulator attached to the backframe and harness assembly of the
product is designed to be used for about 40 minutes (about 300bar). Never connect your
SCBA to any other high pressure regulator that does not use the designated pressure.
Caution
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■Product name: Self-contained breathing apparatus (SCBA)
■Model:
SCA820H
■Applications:
The self-contained breathing apparatus (SCBA), which is used in the
event of a re on a ship or in an oxygen-decient situation, is a piece of equipment for breathing
designed to increase the degree of closeness between the facepiece and the wearer’s face, and
at the same time prevent outside air from owing into the facepiece by always keeping the air
pressure in the facepiece higher than the outside air pressure. Its structure is such that the com-
pressed air stored in the cylinder passes through the cylinder valve, gets its pressure reduced
in two stages by the high-pressure regulator and the demand valve, and then is supplied to the
facepiece.

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SCA 820H
Air
About 40 minutes (30–40L/min when breathing)
About 16kg
Alloy steel (chrome molybdenum)
About 6.0L
About 300bar
About 450bar
About 1,800L
About 10kg (exclusive of air weight and valve weight)
Material
Internal volume
Maximum lling pressure Hydraulic test
pressure
Maximum amount of air lling
the cylinder
Weight
Name of the gas
Duration of usage
Total weight
Cylinder
SpecicationsClassication
The above specications are subject to change without prior notice for product performance improvement.
You can use the SCBA for about 40 minutes when breathing 30–40L of air per minute and
when the cylinder pressure is 300bar. (The duration of SCBA usage may vary remarkably lot
according to the user’s physical condition and working environment.)
Caution
Cylinder air pressure should not exceed 300bar. (This requirement is applicable at a tem-
perature of 35℃.)
Warning

08
Composition and Features
3
Facepiece strap (head tness adjustment strap)
Visor
Demand vavle separation button
By-pass valve
Waist belt buckle
Demand valve
Alarm device
Air blocking button (push button)
Cylinder valve

09
SCA 820H
Shoulder straps
Backframe
Cylinder
Pressure gauge

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Facepiece: Composed of the visor, the demand valve separation button, the air block-
ing button (push button), the demand valve, the exhaust valve, the facepiece straps,
and the facepiece rubber, the facepiece protects the wearer’s face. With their mesh-like
pattern, in particular, the facepiece straps provide excellent wearing comfort and their
structure prevents the adjustment strap portions from getting twisted. The facepiece rub-
ber is made of synthetic rubber, and the visor is a single-lens full face type and provides
a wide eld of view.
Demand valve: As a device for second-stage reduction of the pressure reduced by
the high pressure regulator in the rst stage, the demand valve is designed to prevent
any contaminated outside air from owing into the facepiece by keeping the air pressure
in the facepiece about 20㎜H2 O higher than the air pressure outside the facepiece. In
addition, thanks to the by-pass valve (emergency valve/red) attached to it, you can be
supplied with compressed air in the cylinder through the separate line in the event of
something going wrong with the demand valve.
FBO (First Breathing Open): You can quickly start using the SCBA by simply taking
the rst breath of air without manipulating any particular valve. After using the SCBA, if
you push the air blocking button, the air supply will be blocked.
Demand valve separation button: The facepiece and the demand valve are in
the form of a one-touch type structure and can be combined and separated easily and
quickly. It is necessary to push the two buttons mounted in the facepiece to separate
them from each other.
Pressure gauge: You can easily conrm the pressure in the cylinder even in the dark
with the luminous gauge panelthat makes it easy to identify the gauge needle.
Alarm device: When the pressure remaining in the cylinder is 55bar (5.5Mpa), this
device sounds an alarm to tell the user to stop working and escape to a safe place.
High pressure regulator: This device reduces the pressure of the air in the cylinder
to about 8bar (0.8Mpa) and then supplies it to the demand valve.

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SCA 820H
Backframe and harness assembly: This equipment allows you to attach the cyl-
inder to your back and carry it. You can secure the equipment to your waist easily by
pulling both ends of the waist belt.
Cylinder valve: This is an opening and closing device for air and is equipped with a
safety device that can prevent risks such as cylinder rupture due to temperature rise and
overlling.
Air cylinder: Alloy steel (chrome molybdenum)
Shoulder straps: The shoulder straps are in the form of an S-shaped structure, which
allows you to put them on quickly by adjusting them easily, and they provide enhanced
wearing comfort as well. Each shoulder strap is equipped with a D-ring so that you can at-
tach personal protective equipment such as a lantern or an automatic alarm asher to it.

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Items to Be Checked before Use
4
■Mounting the Cylinder onto the Backframe & Harness Assembly
• Adjust the cylinder securing band of the backframe and harness assembly so that it is larger than
the cylinder.
• Place the cylinder inside the securing band while keeping the cylinder valve part facing toward the
bottom of the backframe and harness assembly.
• Before connecting the high pressure regulator and the cylinder valve to each other, check the rubber
O-ring attached inside the high pressure regulator connection nut for any damage or defect.
• Connect the high pressure regulator attached to the backframe and harness assembly to the
cylinder valve.
• Secure the cylinder to the backframe and harness assembly rmly with the cylinder securing band.
■Airtightness Testing
• Supply air by turning the SCBA cylinder valve handle counterclockwise.
• Since the needle on the pressure gauge may indicate a change due to the pressure expanding in
the hose, carefully give the cylinder valve handle one or more turns counterclockwise to keep it
open for about 5–10 minutes.
Caution
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Caution
Wearing the self-contained breathing apparatus without the cylinder secured rmly to the
backframe and harness assembly could result in the free movement and detachment of the
cylinder from the assembly, thus causing the wearer to suffer a serious injury.
If regulator is fastened incorrectly or forcibly, the threads or rubber O-rings may be dam-
aged, thus resulting in air leakage from the cylinder.
In order for the cylinder to be mounted rmly to the backframe and harness assembly,
please fasten the securing band as shown below.
Front Back

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SCA 820H
■ Alarm Device
• After the airtightness testing, slowly turn the by-pass valve (emergency valve/red) of the facepiece
toward “OPEN”, and the air lling the hose will slowly leak out and the air pressure will drop as well.
• When the needle on the pressure gauge indicates about 55bar while the air pressure is dropping,
check to see whether the alarm device starts to sound.
• After checking the needle on the pressure gauge, close the cylinder valve handle by turning it clock
wise and then check for any change in the pressure after about 5–10 minutes.
• The needle on the gauge must not indicate any change when opening the cylinder valve again.
• If the needle on the gauge indicates a change, check for any foam or air bubbles by applying a
solution used for airtightness testing or soapy water to the connections of the safety device and air
outlet of the cylinder valve, the pressure gauge, the hose, and the alarm device.
• In the event of air leakage even when the cylinder valve and the high pressure regulator have been
correctly connected to each other, check the O-ring of the regulator to see whether there is some
thing wrong with it. If it has been damaged, replace it with a new O-ring. If it has not been damaged,
insert it back in place.
If any foam or air bubbles appear continuously from any one of the connections, it means
that air is leaking from the connection. Never use the equipment in this case. Using such
equipment is dangerous because air leakage may increase rapidly, which may then cause
the duration of its usage to decrease rapidly. Please contact the After-Sales Service Team of
our Company for inspection and repair services.
Warning
If the alarm device fails to sound when the needle on the pressure gauge indicates about
55bar, the SCBA user won’t know he/she has to escape and thus is likely to face a very
dangerous situation. In this case, contact the After-Sales Service Team of our Company for
inspection and repair services.
Caution

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■ Facepiece
• Conrm the correct shape of the facepiece and check it for any damage.
• Check the rubber component of the facepiece for any damage.
• Check to see whether the visor is properly clean and transparent and whether an anti-fog agent has
been applied to it.
• Check to see whether the facepiece and the demand valve are fastened rmly.
• Check to see whether the condition and elasticity of the facepiece straps are sufciently good.
• Check to see whether the facepiece moves slightly towards your face when taking a deep breath
and while wearing it correctly.
If there is something wrong with the appearance of the facepiece, or if it fails to remain
airtight, please contact the After-Sales Service Team of our Company to have it repaired or
replaced with a new one.
Caution

15
SCA 820H
■ Demand valve
• Open the cylinder valve and check for any air leaks.
• If you put on the facepiece and take a deep breath, the demand valve starts operating automatically.
• Check to see whether air leaks out of the facepiece when the you put a nger into the side of the
facepiece while breathing normally.
• If you push the air blocking button attached to the demand valve, the air supply will be blocked.
• Check to see whether the red by-pass valve (emergency valve) operates smoothly when it is turned
counterclockwise and whether there is any air leakage when the by-pass valve (emergency valve)
is closed.
1. If any air leakage has been discovered in the demand valve, stop using the equipment
immediately and contact the After-Sales Service Team of our Company for inspection and
repair services.
2. If the by-pass valve (emergency valve) does not operate normally, the user may be in
danger because it cannot be used in an emergency when the demand valve fails to operate
normally. In this case, do not use the equipment and contact the After-Sales Service Team of
our Company for inspection and repair services.
Caution

16
How to Use the SCBA
5
■ Before Use
1. Check to conrm that the cylinder valve is closed.
2. Check to conrm that the high pressure cylinder is rmly se
cured to the backframe and harness assembly.
(Refer to the Items to Be Checked before Use.)
3. Check to conrm that the cylinder valve and the high pressure
regulator have been correctly connected to each other.
4. Check to conrm that the needle on the pressure gauge on the
right side of the backframe and harness assembly indicates
0bar.
5. By adjusting the demand valve to be in line with the direction
of the arrow, check to conrm that the demand valve and the
facepiece have been rmly fastened to each other.
6. Hang the backframe and harness assembly with the cylinder
attached to it from your shoulders.
7. Secure the backframe and harness assembly stably to your
back by pulling the draw strings of the shoulder straps with both
hands.

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SCA 820H
8. Connect the male and female waist belt buckles on the right
and left sides with both hands and then tighten the waist belt by
pulling it to t your waist size.
9. Place the tip of your chin on the end part of the facepiece and
then put on the facepiece straps to cover your head.

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10. Secure the facepiece by evenly pulling the head adjustment
straps on its right and left sides with both hands, and then
nally tighten the head adjustment strap on its top side.
11. Open the cylinder valve fully.
12. Check to conrm whether the needle on the pressure gauge
on the right side of the wearer indicates about 300bar.
13. Since it is impossible to conrm this while the cylinder valve is
closed, check to ascertain whether the by-pass valve (emer
gency valve) operates normally rst so that you can open the
cylinder valve and check to conrm.
(If air is discharged when you turn the by-pass valve
counterclockwise, the valve is operating normally.
After ascertaining this discharge, turn the valve clockwise to
close it.)
1. If you pull the head adjustment strap located on the top center too strongly in order to
secure the facepiece onto your face, a gap may occur at the top of the facepiece, thus
preventing it from remaining airtight, and your face may feel severe pressure. Please be
careful not to do this.
2. In the case of an unusual face shape, it may not be possible for the face and the facepiece
to be in perfectly close contact with each other, thus causing air leakage.
3. Due to user’s body features such as beard, hair and mustache, and the glasses worn
by the user, the facepiece may not perfectly t the face. If there is any gap between the
facepiece and the face, air may leak out rapidly reducing the time of use.
Caution

19
SCA 820H
14. Check to conrm whether the FBO function attached to the
facepiece operates normally.
15. Check to conrm whether air leaks out of the facepiece by
putting a nger into the side of the facepiece in order to ascer
tain the positive pressure in the facepiece.
16. Check to conrm whether the facepiece operates normally
before using it.
1. Opening the cylinder valve rapidly could cause damage to the hose or the rubber ring in
the relevant connection. Please open it slowly.
2. If the needle on the pressure gauge indicates about 300bar, the duration of SCBA usage
may be shorter than 40 minutes when breathing 30–40L of air, as specied by our
Company.
Caution
If the facepiece fails to remain airtight while you are wearing it, you are not protected from
toxic gas. In this case, never enter any dangerous area where there is toxic gas, and im-
mediately contact the After-Sales Service Team of our Company for inspection and repair
services.
Warning

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■ After Use
17. After using the SCBA, get out of the toxic gas area completely and then push the air blocking
button to block the air supply.
18. Loosen the facepiece straps by pulling them forward and then take off the facepiece starting with
your chin.
19. Disconnect the male and female fastening buckles and the waist belt of the backframe and
harness assembly.
20. Loosen the shoulder straps by pulling the shoulder strap clamp upward.
21. Put down the cylinder carefully in order not to create a damaging impact.
22. Close the cylinder valve, then turn the by-pass valve (emergency valve) counterclockwise to
discharge the air out of the hose until the needle on the pressure gauge indicates 0bar, and then
close the by-pass valve (emergency valve).
23. Check to conrm there is nothing wrong with the facepiece or the SCBA.