Scott AIR-PAK 75 Operating & Maintenance Instructions page 4

SPECIFIC MODEL DESCRIPTIONS
The SCOTT AIR-PAK SCBA is available as:
• Model 2.2 SCBA (2216 psig operating pressure),
• Model 4.5 SCBA (4500 psig operating pressure),
• Model 5.5 SCBA (5500 psig operating pressure).
Each model can be identified by a large label with black printing on the
pressure reducer with the word SCOTT and the model number (2.2, 4.5,
or 5.5) printed at the bottom. In addition, the remote pressure gauge
mounted on the shoulder harness is imprinted with the operating pressure
on the face of the gauge.
The basic AIR-PAK SCBA models are equipped with a steel wire backframe.
All models are available as the AIR-PAK 75 SCBA with an aluminum
backframe. All features are available on both backframes.
All of the SCOTT respirator models are certified by the national Institute
of Occupational Safety and Health (nIOSH) as pressure-demand self-
contained breathing apparatus. See APPROVAL And CERTIFICATIOnS
section of this instruction for additional information. Also see the nIOSH
Approval Label, SCOTT document P/n 595258-01, included with this
instruction.
SCOTT MODEL 2.2 SCBA
• Use only with cylinder and valve assemblies with a full rated
service pressure of 2216 psig;
• Certified by NIOSH as a 30-minute rated respirator.
SCOTT MODEL 4.5 SCBA
• Use only with cylinder and valve assemblies with a full rated
service pressure of 4500 psig;
• Certified by NIOSH (depending on the cylinder and valve assembly
installed) as a
– 30-minute rated SCBA
– 45-minute rated SCBA
– 60-minute rated SCBA
SCOTT MODEL 5.5 SCBA
• Use only with cylinder and valve assemblies with a full rated
service pressure of 5500 psig;
• Certified by NIOSH (depending on the cylinder and valve assembly
installed) as a
– 30-minute rated SCBA
– 45-minute rated SCBA
– 60-minute rated SCBA
– 75-minute rated SCBA
The time duration ratings are approval agency classifications and are not
intended to indicate the actual duration a user may achieve. Please see
the SERVICE LIFE section of this instruction for additional information.
nIOSH approval and nFPA compliance are granted to respiratory protec-
tion equipment made up of specific combinations of parts or assemblies
that have been successfully tested to the performance standards estab-
lished by the approval agencies.
To maintain nIOSH approval and nFPA compliance, read and follow these
special instructions:
• An AV-3000 HT Facepiece P/n 805337-34 (Small), P/n 805337-35
(medium), or P/n 805337-36 (Large) must be used only with dARK
grey nose Cup with InHALATIOn VALVES P/n 201126 (Small), P/n
201127 (medium), or P/n 201128 (Large).
If you are using an AV-3000 HT facepiece and do not have the correct
nose Cup, contact SCOTT or your authorized SCOTT distributor. Failure
to comply with this requirement will void the approvals for your respirator.
use of a non-compliant configuration in a hazardous atmosphere may
result in serious injury or death.
P/N 595252-01 Rev. B 5/14 Page 4 of 48
WARNING
TO M A I N TA I N N I O S H A P P R O VA L A N D
N F PA C O M P L I A N C E , A N AV- 3 0 0 0 H T
FACEPIECE P/N 805337-34 (SMALL), P/N
8 0 5 3 3 7 - 3 5 ( M E D I U M ) , O R P / N 8 0 5 3 3 7 -
36 (LARGE) MUST BE USED ONLY WITH
DARK GREY NOSE CUP WITH INHALATION
VALVES P/N 201126 (SMALL), P/N 201127
(MEDIUM), OR P/N 201128 (LARGE). USE
OF A NON-COMPLIANT CONFIGURATION IN
A HAZARDOUS ATMOSPHERE MAY RESULT
IN SERIOUS INJURY OR DEATH.