Page 4 of 36
P/N 595225-01 Rev C 4/12
BASIC PRINCIPLES OF OPERATION
The RIT-PAK III portable air supply pneumatic system consist of both high and low pres-
sure outlets with a single connection to the breathing air cylinder. The hoses are stored in
built-in compartments within the RIT-PAK III carrying bag. When the RIT-PAK III portable
air supply cylinder valve is opened, breathing air is available through both high and low
pressure outlets. The LED DISPLAY will initialize with all five lights ON for twenty seconds
followed by a display of cylinder supply level.
The SCOTT RIT-PAK III portable air supply is designed to provide a variety of connection
options to supply breathing air as either
1) as a
LOW PRESSURE
air supply source to replace the depleted air cylin-
der of a user’s AIR-PAK SCBA or to supply breathing air to an individual
with a facepiece and regulator,
or
2) as a
HIGH PRESSURE
air supply source to partially recharge the depleted
air cylinder of a user’s AIR-PAK SCBA.
Various connections with the user’s respirator are possible with the RIT-PAK III portable
air supply. In addition, an Emergency facepiece and Emergency breathing regulator may
be used to supply breathing air directly to an individual.
The cylinder pressure gauge has an LED DISPLAY with lights to provide a visual monitor
of the air supply in the cylinder and valve assembly. The LED DISPLAY is a convenience
feature that is not critical to the operation of the air supply. If the LED DISPLAY is not oper-
ating as described in this instruction and the pressure gauge and the rest of the air supply
is functioning normally, the user must decide if there is a compelling reason to proceed
with use of the RIT-PAK III portable air supply.
The pressure reducer is also equipped with a BELL to signal when the air pressure in the
breathing air cylinder has dropped below one-quarter of full.
It is essential that one properly trained person on the Rapid Intervention Team be assigned
to monitor the actual volume of remaining air in the SCOTT RIT-PAK III portable air supply
cylinder and provide for the safety of the respirator user in ample time to complete the
exit of the hazardous atmosphere or to replace the SCOTT RIT-PAK III air supply cylinder
with one that is fully charged. Depending on how the RIT-PAK III portable air supply is
used, the end-of-service alarm on the respirator may or may not operate. See the LOW
PRESSURE AIR SUPPLY and the HIGH PRESSURE AIR SUPPLY usage sections of this
instruction for recommendations.
When the cylinder valve is closed, residual air must be vented from the system to allow the
electronics to shut down and preserve battery life. Vent the system one of two ways:
1. On the RIC UAC airline assembly, press the VENT button in the center of
the dust cover on the high pressure coupling,
2. If a breathing regulator is attached to the low pressure airline assembly, open
the purge valve on the breathing regulator to vent.
Carefully follow the instructions for storage of each of the air supply lines and the optional
Emergency facepiece and Emergency breathing regulator to assure that they can be
properly deployed when they are needed.
SERVICE LIFE
The SCOTT RIT-PAK III portable air supply is equipped with attachments to
provide breathing air to a respirator user through specific connections to the
respirator. An optional Emergency facepiece and Emergency breathing regula-
tor are available to evacuate someone who either has no respirator or whose
respirator has no couplings to connect to the RIT-PAK III portable air supply.
Before entering an area requiring respiratory protection, determine which use
of the SCOTT RIT-PAK III portable air supply will apply in the situation.
The Rapid Intervention Team Must be thoroughly familiar with the operation and
application of the SCOTT RIT-PAK III portable air supply before entering the
area requiring respiratory protection.
The SCOTT RIT-PAK III portable air supply is available in three different configu-
rations:
– The RIT-PAK III 2216 psi model is intended to accommodate a SCOTT 2.2 -
2216 psi cylinder rated at 30 minute duration;
– The RIT-PAK III 4500 psi model is intended to accommodate a SCOTT 4.5
- 4500 psi cylinder rated at 30, 45, or 60 minute duration;
– The RIT-PAK III 5500 psi model is intended to accommodate a SCOTT 5.5
- 5500 psi cylinder rated at 30, 45, 60, or 75 minute duration.
This equipment is only to be used and maintained by trained personnel.
