BERG KOMPBERG ZX90, Operating And Maintenance Manual

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activation of main protection
activation of motor
protection check the protection, replace or switch on
temperature indicator or
temperature transducerfault check, replace if damaged
temperature indicator
(microprocessor controller)
activated because the
temperature was too high check:
-
oil level and top it up if necessary,
-
cooling: remove causes of insufficient
cooling,
-
thermostat: if faulty, replace the entire
thermostat or its cartridge.
ambient temperature too
low heat the room up to reach at least +5°C
difficult
compressor start supply voltage too low
check supply voltage, bring it to correct value
ambient temperature too
low heat the room up to reach at least +5°C
non return valve fault call the service
wrong rotation
direction wrong phase sequence swap two phase leads in the compressor
terminal block or in the electric cabinet
oil temperature
too high, the
compressor does
not start ambient temperature
> 40°C
ensure adequate ventilation in the room.
contaminated cooler clean the cooler (exchanger)
operating pressure above
the set value adjust the pressure switch or enter correct
settings in the controller
oil level too low
top oil up as required
oil thermostat malfunction replace the entire thermostat or its cartridge
lack of cooling water provide water to compressor
damaged temperature
transducer replace with a new one
other causes call service
forcing pressure
too low wrong pressure switch or
microprocessor controller
setting adjust the pressure switch or enter correct
settings in the controller
insufficient compressor
capacity in relation to air
requirement install additional source of compressed air
leak in the system
check the tubing for leaks, remove leaks if any
air filter contaminated change air filter cartridge (during the warranty
period to be replaced obligatorily by the
service staff only)
damaged pressure
transducer replace with a new one
damaged suction regulator call the service staff
activation of
motor protection ambient temperature too
high improve room ventilation
failure of one phase in motor
power supply check motor leads, contactor and protection
supply voltage too low ensure correct supply voltage
discharge pressure higher
than specified on the
nameplate adjust the correct settings in the controller