Vanair 050817 - Pressure System Control - Functional Sequences

AIR N ARC 200
®
ALL-IN-ONE POWER SYSTEM
®
APPENDIX A: ADDITIONAL INFORMATION
090019-OP_r0 PAGE - 155
< 10 psi to
175 psi
AIR SYSTEM: START -UP
SYSTEM STATE
SEQUENCE OF INTERACTION
SYMBOL
DESCRIPTION
LEGEND KEY
AIR SYSTEM: SUSTAINED AIR DEMAND AIR SYSTEM: MANUAL COMPRESSOR SHUT DOWN (with machine on) AIR SYSTEM: COMPRESSOR SYSTEM DESIRED TO START AT IDLE SPEED — TANK PRESSURE < 150 PSI
< 150 psi
< 150 psi
175 psi
PILOT VALVE - Manual switch ON PRESSURE SWITCH - N.C., 10 PSI (Engergizes pilot when tank pressure signal is < 10 psi) PILOT VALVE - Manual switch OFF COMPRESSOR -
BUILDING
PRESSURE
COMPRESSOR - OFF
COMPRESSOR -
VENTING T O
ATMOSPHERE AIR STORAGE TANK

(with pressure indication noted)
ENGINE -
FULL THROTTLE ENGINE - IDLE SPEED SERVICE VAL

VE -
OPEN MACHINE OFF
MACHINE ON
(STARTED)
SEQUENCE INDICATION (”Causes”)
< 10 psi
XXX psi
175 psi
A.8 PRESSURE SYSTEM CONTROL - FUNCTIONAL SEQUENCES
> 10 psi
NOTE: The purpose of this chart is to show cause of how pressure conditions occur
during the operational sequence of events of the compressor system cycles.