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Section 7 • Compressor Control Setpoints
Single Screw Compressor PLC Operation Manual • Vilter/Emerson • 35391CM
Figure 7-6. Compressor Control Screen - 3 of 3 (All Options Shown)
VENTURI OIL RECOVERY
• Cycle Time: Defi nes the ON and OFF time for the
venturi oil recovery solenoids, if installed.
HOTGAS BYPASS
• ON/OFF Capacity Slide Position: Defi nes the ca-
pacity slide valve positions the hotgas bypass
solenoid will turn ON below and OFF above, if
installed.
ECONOMIZER
• Port 1: Defi nes the capacity slide valve positions
the economizer port 1 solenoid(s) will turn ON
above and OFF below, if installed.
• Port 2: Defi nes the capacity slide valve positions
the economizer solenoid(s) will turn ON above
and OFF below, if installed.
ENCLOSURE SETPOINTS
• Enclosure Heater: Defi nes Enclosure Temperature
setpoints to control the enclosure space heaters.
• Enclosure Roof Vents: Defi nes Enclosure
Temperature setpoints to control the enclosure
roof vents/exhaust fans.
OIL FLOW CONTROL
• Oil Flow Control Start Temp (Oil Injection): Defi nes
the oil injection temperature at which the oil fl ow
control valve will modulate. Below this tempera-
ture the valve will remain 100% open.
PERIODIC SLIDE VALVE EXERCISE
Cycle Time: Defi nes the amount of time of slide valve
non-movement to activate the periodic slide valve exer-
cise function, if enabled.
Compressor Control Setpoints Screen 3
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