Scott AIR-PAK 75i 2.2 Operating & Maintenance Instructions page 28

RIC UAC EMERGENCY USE
This AIR-PA 75i respirator may be fitted with a Rapid Intervention Crew/
Company Universal Air Connection (RIC UAC) System which permits emer-
gency replenishment of an approved SCBA breathing air supply cylinder on
a user's respirator from an approved air supply source while in use. This is
not a Quick Charge attachment and must not be used for routine recharging
of the cylinder, for "buddy breathing", for transferring air from another SCBA,
or any unapproved use. The RIC UAC is for emergency use only when the
respirator user is incapacitated within the hazardous atmosphere. The RIC
UAC manifold is equipped with a relief valve which will open if the supply
pressure of the emergency air supply exceeds the maximum pressure rating
of the complete respirator. See FIGURE 13. However, the supply pressure of
the emergency air supply to be connected to the RIC UAC must not exceed
4500 psig.
RIC UAC
RELIEF
VALVE
FIGURE 13
To use the RIC UAC system proceed as follows:
1. A member of the Rapid Intervention Crew/Company must visually inspect
the respirator user's cylinder and cylinder valve for dents or gouges in the
metal or fiber wrapping. If the cylinder and valve assembly shows damage
or evidence of exposure to high heat or flame, such as paint turned brown
or black, decals charred or missing, gauge lens melted or elastomeric bum-
per distorted, the decision must be made whether the cylinder is suitable
for recharging by this method. If there is any suspicion that the cylinder
is not safe, find another method of supplying air to the respirator user.
2. Be certain that the cylinder which you are charging is compatible with
the complete respirator it is installed on, (i.e.: there must be a 2216 psig
cylinder installed on a Model 2.2 respirator; there must be a 4500 psig
cylinder installed on a Model 4.5 respirator, etc.). Verify by inspecting
the cylinder and reducer labels to ensure that they are rated at the same
pressure. NEVER ATTEMPT TO CHARGE A CYLINDER TO MORE THAN
THE RATED PRESSURE MARKED ON THE CYLINDER.
3. The RIC UAC filling hose assembly must be regulated to a maximum
supply pressure of 4500 psig.
4. Verify that the cylinder valve on the user's respirator is fully open by
turning the cylinder valve knob fully counterclockwise (approximately 2
1/2 full turns).
5. Remove the dust cap from the RIC UAC coupling on the respirator and
from the matching coupling on the RIC UAC filling hose assembly. Visually
inspect both couplings for dirt or damage. Remove any dirt or contamina-
tion from the couplings.
a) If the RIC UAC filling hose assembly coupling appears damaged,
do not attempt to connect the RIC UAC filling hose assembly to the
respirator. Find an alternate RIC UAC filling hose assembly.
b) If the RIC UAC coupling on the respirator appears damaged, do not
attempt to connect the RIC UAC filling hose assembly to the res-
pirator. Find an alternate method of supplying air to the respirator
user.
P/N 595236-01 Rev. B 10/11
CONNECTING
THE RIC UAC
FIGURE 14
Page 28 of 44
WARNING
THE RIC UAC SYSTEM IS FOR EMERGENCY USE
ONLY. IMPROPER USE OF THIS SYSTEM MAY
LEAD TO A MALFUNCTION OF THE EQUIPMENT
WHICH COULD CAUSE SERIOUS INJURY OR
DEATH. DO NOT USE THE SCOTT RIC UAC AS-
SEMBLY TO CHARGE AN SCBA AIR CYLINDER
WHILE THE SCBA IS BEING WORN UNLESS
THERE IS A COMPELLING REASON TO ASSUME
THE RISK OF INJURY IF THERE IS A COMPO-
NENT FAILURE DURING THE FILL PROCESS.
A COMPONENT FAILURE DURING OR AFTER
THE FILL PROCESS MAY RESULT IN SERIOUS
INJURY OR DEATH.
WARNING
DO NOT USE THE SCOTT QUICK CHARGE
ASSEMBLY TO CHARGE AN SCBA AIR CYL-
INDER WHILE THE SCBA IS BEING WORN IN
A HAZARDOUS OR AN IDLH ATMOSPHERE
UNLESS THERE IS A COMPELLING REASON
TO ASSUME THE RISK OF INJURY IF THERE
ARE ANY IRREGULARITIES IN THE FILL PRO-
CESS WHICH MAY RESULT IN A NEED TO
REMOVE THE RESPIRATOR. REMOVAL OF
THE RESPIRATOR IN A HAZARDOUS OR AN
IDLH ATMOSPHERE MAY RESULT IN SERIOUS
INJURY OR DEATH.
WARNING
IF THE SCBA OR THE CYLINDER TO BE
CHARGED IS KNOWN OR SUSPECTED OF
HAVING BEEN DROPPED, EXPOSED TO DIRECT
FLAME IMPINGEMENT OR DAMAGED IN ANY
WAY, DO NOT USE THE RIC UAC SYSTEM. FIND
ANOTHER METHOD OF SUPPLYING BREATHING
AIR TO THE RESPIRATOR USER. ATTEMPTING
TO FILL A CYLINDER WHICH IS KNOWN OR SUS-
PECTED OF DAMAGE IN ANY WAY MAY RESULT
IN CYLINDER FAILURE WHICH COULD CAUSE
SERIOUS INJURY OR DEATH.
WARNING
NEVER CHARGE A CYLINDER TO MORE THAN
THE RATED PRESSURE MARKED ON THE
CYLINDER. OVERCHARGING A CYLINDER MAY
CAUSE A FAILURE RESULTING IN RAPID RE-
LEASE OF HIGH PRESSURE AIR WHICH COULD
CAUSE SERIOUS INJURY OR DEATH.