Operation & Maintenance M anual OPERATING INSTRUCTIONS
• Complete starting sequence above.
• Close manual blowdown valve as soon as engine runs freely.
• Do not allow ma
chine to run for long periods with manual blowdown v alve open.
• Allow the engine to reach operating temperature.
• At this point in the operation of the machine it is safe to apply full load to the engine.
NOTE: Wear h
earing protection at all times when the engine is started with the manual
blowdown valve open and air is flowing from the valve.
Push After Warm Up
NOTE: In or
der to allow the machine to start at a reduced load, a valve, which is operated
by a button located on the instrument panel, is incorporated in the regulation s ystem. (This
valve automatically returns to the start position when the machine is switched off and air
pressure
relieved from the system).
• Allow the engine to reach its operating temperature, then press the button.
Dual Pressure Regulation When Fitted
Machine
s which operate in excess of 7 bar (100 psi) can optionally be fitted with a dual
pressure switch inside the unit. This switch s elects between 7 bar (100 psi) and the machine
rated pressure, cfm remains nominally constant.
Starti
ng and stopping are unaffected by the selection and during normal running the selector
switch may be safely operated. Precaution must be taken to ensure that downstream
equipment is rated to suit the available pressure.
The pr
essure gauge indicates which setting has been selected.
To ensure an adequate flow of oil to the airend, never allow the discharge
pre
ssure to fall below 50 psi.
Normal Operation
The operator may observe and monitor operating parameters using the Micro-Port and
ga
uges. In the event the compressor controller detects a parameter outside normal operating
limits, the compressor will alert and/or shutdown, and display a diagnostic code.
In the event the compressor controller detects a parameter at a dangerously high or low level,
t
he compressor will be automatically shut down with the cause of the shutdown shown on
the Micro-Port.
Operation Loaded
Assume engine has been started and is running in the unload state at idle speed. If there is air
demand (pressure falls below the load point pressure), compressor will load at idle speed by
opening the inlet valve. As air demand rises and falls, engine speed is controlled between idle
speed and full load speed to match the required flow while maintaining load point pressure.
Operation Unloaded
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