Hertz HSC serie Bedienungshandbuch Seite 59

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MAIN MOTOR OVERLOAD RELAY STOPS THE COMPRESSOR
1- OVERLOAD RELAY ADJUSTMENT IS CHANGED
OBSERVE THAT THE OVERLOAD RELAY IS ADJUSTED ACCORDING TO THE MOTOR NAMEPLATE.
OBSERVE THAT (ON FULL LOAD) THE MOTOR CURRENT IS NORMAL AND STABLE (THE CURRENT
DIFFERENCE BETWEEN THE PHASES SHOULD BE LESS THAN 10 %)
IF THE RELAY OPENS BEFORE THE ADJUSTED VALUE IT IS DEFECTED. REPLACE IT.
2- THE VOLTAGE IS LOW
IF THE LINE VOLTAGE IS LESS 5 % OR LOWER THAN THE ADJUSTED VOLTAGE OF COMPRESSOR, THE
PROBLEM MAY ARISE FROM THE ESTABLISHED POWER OF YOUR FACILITY.
3- THE COMPRESSOR EXCEEDS THE ADJUSTED PRESSURE
SEE ITEM 5.
4- THE SEPARATOR IS CLOGGED.
WHEN THE COMPRESSOR IS WORKING AT FULL LOAD, OBSERVE THE INTERNAL PRESSURE GAUGE. IF
THE INTERNAL AND EXTERNAL PRESSURE DIFFERENCE IS CLOSE TO 1.5 BAR, SEPARATOR IS
CLOGGED. REPLACE THE SEPARATOR.
5- THE AIREND UNIT IS DAMAGED
IT CAN BE UNDERSTOOD BY NOISY OPERATION. INFORM THE SERVICE.
6- THERE IS A PROBLEM AT MAIN MOTOR
IF THE OPERATING CURRENTS ARE ABOVE NORMAL THE MOTOR MAY BE EXCESSIVELY OVERLOADED,
LISTEN TO THE SOUND OF MOTOR AND ALSO CHECK THE BODY TEMPERATURE. THE MOTOR MAY BE
BURNED DOWN. THERE MAY BE BEARING PROBLEM. INFORM THE SERVICE.
8-
FAN MOTOR OVERLOAD RELAY STOPS THE COMPRESSOR
1- OVERLOAD RELAY ADJUSTMENT IS CHANGED.
SEE ITEM 7.1
2- THE PANEL FILTER OR THE COOLER CELLS ARE BLOCKED. THE AIR INLET IS OBSTRUCTED.
(VENTILATION PROBLEM)
CHECK THAT THE COMPRESSOR IS VENTILATED GOOD.
REPLACE THE BLOCKED PANEL AND INTAKE FILTERS.
CLEAN THE COOLER AND FAN IMPELLERS.
DO NOT CLOSE HOT AIR OUTLET.
IF YOU ARE USING CULVERT, DO NOT REDUCE THE DIMENSION.
3- THERE IS A PROBLEM IN YOUR FAN MOTOR.
IF THE CURRENTS ARE ABOVE NORMAL THE MOTOR MAY BE EXCESSIVELY LOADED. LISTEN TO THE
NOISE OF MOTOR WHILE THE COWLINGS ARE OPEN AND CHECK THE BODY TEMPERATURE. THE
MOTOR MAY BE BURNED DOWN. THERE MAY BE A BEARING PROBLEM. INFORM THE SERVICE.
9-
COMPRESSOR SHUTDOWN BECAUSE OF OVERPRESSURE.
1- PRESSURE ADJUSTMENT HAS BEEN CHANGED OR PRESSURE SWITCH IS DEFECTIVE.
CHECK THE PRESSURE ADJUSTMENT / SAFETY PRESSURE SWITCH FUNCTION.
2- OVERPRESSURE IS COMING FROM ANOTHER COMPRESSOR.
SEPARATE THE COMPRESSOR LINES. (IF THERE IS A DIFFERENT WORKING PRESSURE SETTINGS)
3- THE ADJUSTMENT OF SAFETY PRESSURE SWITCH HAS BEEN CHANGED
CHECK THE ADJUSTMENT OF THE PRESSURE SAFETY SWITCH. WHEN THE ADJUSTED PRESSURE IS
REACHED, IT SHOULD STOP THE COMPRESSOR. IF THE SWITCH DOES NOT CHANGE CONTACT IT IS
DEFECTED. REPLACE IT
4- THE SEPARATOR IS CLOGGED
SEE ITEM 7.4
10-
THE COMPRESSOR STOPS DUE TO HEAT
1- THE TEMPERATURE ADJUSTMENT HAS BEEN CHANGED.
CHECK & RESET THE DEFAULT VALUE
2- THE AMBIENT TEMPERATURE IS HIGH
TAKE THE NECESSARY PRECAUTIONS BY CHECKING THE AMBIENT TEMPERATURE.
3- VENTILATION IS INSUFFICIENT
INTAKE WINDOW OF COMPRESSOR ROOM MAY BE SMALLER THAN THE COMPRESSORS INTAKE AREA.
THE HOT AIR OUTLET CAN NOT BE DISCHARGED OUT OF COMPRESSOR ROOM HEALTHILY. THE
COOLER MAY BE DIRECTLY SUBJECT TO SUN LIGHT AND THERE MAY BE STRONG WIND OPPOSITE TO
THE HOT AIR OUTLET. CHECK AND TAKE NECESSARY PRECAUTIONS.
4- OIL LEVEL IS LOW
CHECK THE OIL LEVEL AND FILL IF NECESSARY
5- THE OIL FILTER IS CLOGGED
REPLACE THE OIL FILTER
6- THE LIFE OF OIL HAS EXPIRED
YOU CAN EASILY UNDERSTAND THAT THE OIL LIFE IS COMPLETED (IT GETS DARK). IF YOU HAVE TO
REPLACE THE OIL MORE THAN NORMAL, REVIEW YOU'RE OPERATING CONDITIONS. (FOR DETAILED
INFORMATION SEE ITEM 17)
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