
6.0 TROUBLE SHOOTING CHART
TROUBLE
CAUSE &/OR DISPLAY
WHAT TO DO
Compressor fails to start.
110/120V control voltage not available.
— Check fuses. Check transformers and
wiring connections.
"STARTER FAULT".
— Inspect contactors.
"EMERGENCY STOP".
— Rotate emergency stop button to
disengage, and press"SET" button twice.
"MAIN MTR OVER LD"
— Manually reset main motor overload relay,
and press "SET"button twice.
"PRES SENSOR FAIL" or
— Check for defective sensor, bad sensor
"TEMP SENSOR FAIL"
connection, or broken sensor wires.
“NO CONTROL POWER”
— Check fuses and HAT switch
Compressor shuts down.
"HIGH AIREND TEMP."
— Ensure that installation area has
adequate ventilation.
— Check coolant level. Add if required.
— Cooler cores dirty. Clean coolers.
NOTE: If a shutdown oc-
"HIGH AIR PRESS."
— Check for restricted or malfunctioning
curs, press the DISPLAY
blowdown valve or minimum pressure
SELECT button once to
check valve.
activate the L.E.D. display
"LOW SUMP PRESS."
— Check for air leak from tank or
table. Using the adjacent up
blowdown piping.
and down arrows, the values
"PRES SENSOR FAIL" or
— Check for defective sensor, bad sensor
displayed will be those im-
"TEMP SENSOR FAIL"
connection, or broken sensor wires.
mediately preceding shut-
down. Use these values
"CK MOTOR ROTATION."
— Interchange any two line connections
when trouble shooting a
(L1,L2,L3) at the starter.
problem.
"MAIN MTR OVERLD"
— Check for loose wires.
— Check supply voltage.
— Check heater size.
"STARTER FAULT."
— Inspect starter contactors.
— Check for loose wires.
“NO CONTROL POWER”
— Check fuses and HAT switch
Low system air pressure
Compressor running in "Unload" Mode.
— Press "UNLOAD/LOAD" button.
Controller off-line set point too low.
— Press "UNLOAD/STOP" button, set off-
line set point at a higher value.
Dirty air filter element.
— Check filter condition. Replace
as required.
V-Belts slipping.
— Adjust belt tension.
Air leak.
— Check air system piping.
Moisture separator trap drain stuck open.
— Inspect and repair.
Inlet valve not fully open.
— Inspect and repair. Check control
system operation.
System demand exceeds compressor
— Install larger or an additional
delivery.
compressor.
43
Содержание EP 20 SE
Страница 18: ...16 FIGURE 2 5 1 TYPICAL OUTDOOR SHELTERED INSTALLATION ...
Страница 48: ...46 8 0 REFERENCE DRAWINGS 8 1 ELECTRICAL SCHEMATIC FULL VOLTAGE 39838388 REV 01 ...
Страница 49: ...47 8 2 ELECTRICAL SCHEMATIC STAR DELTA 39851985 REV 01 ...
Страница 50: ...48 8 3 ELECTRICAL SCHEMATIC FULL VOLTAGE REMOTE MOUNTED STARTER 39845029 REV 01 ...
Страница 51: ...49 NOTES ...
Страница 52: ...50 8 4 FOUNDATION PLAN ENCLOSED Continued 39838750 REV 02 ...
Страница 53: ...51 8 4 FOUNDATION PLAN ENCLOSED 39838750 REV 02 ...
Страница 54: ...52 8 4 FOUNDATION PLAN UNENCLOSED Continued 39848171 REV 02 ...
Страница 55: ...53 8 4 FOUNDATION PLAN UNENCLOSED 39848171 REV 02 ...
Страница 56: ...54 8 6 FOUNDATION PLAN OUTDOOR MODIFICATION Continued 39848189 REV 02 ...
Страница 57: ...55 8 6 FOUNDATION PLAN OUTDOOR MODIFICATION 39848189 REV 02 ...
Страница 62: ...60 8 11 TYPICAL SYSTEM FLOW DIAGRAMS TYPICAL SYSTEM FLOW DIAGRAM ...
Страница 63: ...61 8 11 TYPICAL SYSTEM FLOW DIAGRAMS ...
Страница 64: ...62 8 11 TYPICAL SYSTEM FLOW DIAGRAMS ...
Страница 65: ...63 8 11 TYPICAL SYSTEM FLOW DIAGRAMS ...
Страница 66: ...64 8 11 TYPICAL SYSTEM FLOW DIAGRAMS ...
Страница 67: ...65 DATE RUN TIME WORK DONE QTY UNIT WORK HOURS MEASURE BY 9 0 MAINTENANCE RECORD ...
Страница 68: ...66 DATE RUN TIME WORK DONE QTY UNIT WORK HOURS MEASURE BY MAINTENANCE RECORD ...
Страница 69: ...67 DATE RUN TIME WORK DONE QTY UNIT WORK HOURS MEASURE BY MAINTENANCE RECORD ...
Страница 70: ...68 DATE RUN TIME WORK DONE QTY UNIT WORK HOURS MEASURE BY MAINTENANCE RECORD ...