AIR SYSTEMS INTERNATIONAL PAK-3 Manual

OPERATING INSTRUCTIONS AND REPLACEMENT PARTS
Models: PAK-3 and PAK-3HI
AIR SYSTEMS INTERNATIONAL, INC.
829 Juniper Crescent, Chesapeake, Va, 23320
Telephone [phone]
Toll Free 1-800-866-8100
Fax No. [phone]
www.airsystems.com.
e-mail: [email protected]
This manual must be read carefully and followed by all persons who have or will have the responsibility
for using or servicing this equipment. This equipment will perform as designed only if used according
to the instructions. Otherwise it could fail to perform as designed, causing personal injury or death.
WARNING

2
Dimensions 29.5”L X 21”W X 6.5”D
Weight 27 lbs.
Frame Powdercoated Aluminum
Whips Thermo-Plastic Hose Rated @ 5000 PSI with a 4:1 Safety Factor
Low Pressure Alarm Whistle Set @ 500 PSI
Pressure Regulator 5000 PSI Max Inlet Pressure / 125 PSI Max Outlet Pressure
Flow Rate - 80 CFM @ 5000 PSI Inlet Pressure and 80 PSI Outlet Pressure
High Pressure Auxiliary Inlet Model: PAK-3HI Only, CGA-347 Male, 5000 PSI MAx.
Relief Valve 125 PSI ASME Preset
Intrinsically Safe Yes, No Electronic Devices
Specications

3
LOW PRESSURE
WHISTLE
CGA-347 HAND-TIGHT
CHECK VALVE
BLEEDER VALVE
INLET PRESSURE
GAUGE
AUXILLIARY INLET
CGA-347 MALE
PAK-3HI ONLY
PRESSURE
REGULATOR
OUTLET PRESSURE
GAUGE
CYLINDER STRAP
RELIEF VALVE
RESPIRATOR
CONNECTION
STEP 1)
Secure cylinders by tightening straps at the buckle and mating the velcro sections to prevent slipping. 2216 PSI and 4500
PSI, cylinders can be used.
STEP 2)
Install the CGA-347 hand-tight nuts/stems to the cylinder valves. Close bleeder valves by turning the knobs clockwise.
STEP 3)
Open one cylinder. The low pressure whistle will sound until pressure reaches approximately 1000 PSI. Check reading on
inlet pressure gauge to verify cylinder is full. Close the cylinder valve.
STEP 4) LOW PRESSURE ALARM TEST
Set the required respirator pressure by turning the pressure regulator knob clockwise to increase pressure or counter-
clockwise to decrease pressure. Partially engage a male plug into one of the respirator connections while watching the
inlet pressure gauge. As pressure decreases to approximately 500 PSI the low pressure whistle will begin to sound.
STEP 5)
Open the other cylinder and verify that it is full on the inlet pressure gauge.
STEP 6)
Connect hose(s) and respirator(s) to the respirator connections and readjust pressure regulator if necessary.
HIGH PRESSURE AUXILIARY INLET - PAK-3HI ONLY!
Remove pressure cap from auxiliary inlet. Connect a high pressure connect whip, 5000 PSI max. to the auxiliary inlet,
CGA-347 male. This step can be done anytime during operation of system.
NOTE: A check valve is installed below the auxiliary inlet port to prevent back ow. If air ows out of auxiliary inlet when
pressure cap is removed consult factory.
Set-Up/Operation

4
When the cylinder in use has been depleted to approximately 500 PSI , the low pressure warning alarm will sound indicat-
ing the cylinder needs to be replaced. To change a cylinder while the PORTA-PAK™ is in use:
STEP 1)
Open the second cylinder and check the incoming pressure gauge to verify cylinder is full.
STEP 2)
Close the spent cylinder and open the bleeder valve to relieve pressure on the hand-tight nut.
STEP 3)
Remove the drained cylinder and replace it with a full cylinder. Connect the CGA-347 hand-tight nut to the cylinder valve
and close the bleeder valve.
Cylinder Change

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ITEM # DESCRIPTION PART #
1 CHECK VALVE VC4SMMSS
2 BLEEDER VALVE VAL030
3 CGA-347 HAND-TIGHT NUT/STEM SS347HT
4 INLET PRESSURE GAUGE GA2075KB
5 LOW PRESSURE WHISTLE AC-PA25
6 PRESSURE REGULATOR REG-5000NG
7 CGA-347 MALE ADAPTER (PAK-3HI ONLY) SS4F347AM
8 PRESSURE CAP (PAK-3HI ONLY) SS347CAP
9 OUTLET PRESSURE GAUGE GA20160B
10 CYLINDER STRAP HDWR113A
11 HANSEN COUPLING QDH3SL4M
11A SCHRADER COUPLING QDSSL4M
12 HANSEN DUST CAP QDH3DCAP
12A SCHRADER DUST CAP QDSCAP
13 125 PSI RELIEF VALVE VR4125BR
14 RUBBER FOOT (4 REQ’D) HDWR025
System Components