47.
7.16 ERRATIC INLET VALVE OPERATION
POSSIBLE CAUSE
CORRECTION
Plant air system too small.
Install receiver. Contact your Rogers factory
representative for sizing support. Check auto drain
on existing receiver. The receiver may be full of
liquid water.
Restriction in system.
Check pressure drop from compressor discharge to
first storage receiver. Often filters or dryers will plug
creating excessive pressure drop which eats into
the control band of the compressor. Check
possible icing in aftercooler and / or refrigerated air
dryer.
Faulty inlet valve.
See Section 1.6. Contact your Rogers factory
representative.
Faulty control system components
Repair or replace. See description of Operations.
7.17 FREQUENT INLET AIR FILTER CLOGGING (ALARMS IN <1,000
HRS. SERVICE)
POSSIBLE CAUSE
CORRECTION
Compressor operating in highly
contaminated atmosphere.
Move compressor to cleaner environment. Use
remote air intake to air filter. Add panel filters to the
cabinet cooling air intake.
Faulty filter service switch.
Test and replace switch as necessary.
7.18 COMPRESSOR DISPLAY PANEL (CDP) IS NOT ON OR NOT
RESPONDING
POSSIBLE CAUSE
CORRECTION
CDP not operating correctly.
Refer to CDP Description of Operations for panel
troubleshooting.
Bad power supply.
Check power supply fuse. Replace fuse if
necessary. Insure control power disconnect feeding
the CDP is closed.
Loose wire or cable connections.
Check all wiring terminals and cable connections for
contact and tightness.
No control power.
Check incoming power supply. Check control
power fuses. Replace as required.
Unauthorized loads on control
circuits.
Remove electrical loads not shown on electrical
schematic supplied with compressor. Contact your
Rogers factory representative.. See Section 3.1.
7.19 HIGH RESERVOIR PRESSURE
POSSIBLE CAUSE
CORRECTION
Faulty pressure transmitter.
Check switch. Replace if necessary.
High Discharge Pressure
See “High Discharge Pressure”, Section 7.8.
Faulty Check Valve
Repair or replace check valve.
Clogged separator.
See “Frequent Air/Lubricant Separator Clogging”,
Section 7.6.
Summary of Contents for KI Series
Page 1: ...1 Model __________________ Serial __________________ Rotary Screw Air Compressors...
Page 8: ...7 INTENTIONALLY BLANK...
Page 9: ...8 CHAPTER 1 GENERAL INFORMATION...
Page 19: ...10 CHAPTER 2 INSTALLATION INSTRUCTIONS...
Page 26: ...17 CHAPTER 3 ELECTRICAL INFORMATION...
Page 30: ...21 CHAPTER 4 COMPRESSOR LUBRICANT...
Page 39: ...30 INTENTIONALLY BLANK...
Page 40: ...31 CHAPTER 5 AIR INLET FILTER INFORMATION...
Page 43: ...34 INTENTIONALLY BLANK...
Page 44: ...35 CHAPTER 6 COMPRESSOR OPERATIONS...
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Page 50: ...41 CHAPTER 7 TROUBLESHOOTING...
Page 57: ...48 CHAPTER 8 FORMS RECORDS AND ELECTRICAL SCHEMATICS...
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