Pfannenberg CCE Standart Serie Traduction De La Notice Originale page 17

Problem
The compressor works continuously and the chiller can't control the liquid temperature:
- too low temperature of the liquid
too high temperature of the liquid
-
Too low temperature Broken thermostat (contact blocked)
Too high temperature Broken thermostat
Not enough Freon in the unit
Too high heat load
Problem
No flow rate in the circuit Pump is down
Not correct flow rate on hydraulic
circuit
70040-170_01-A(CCE_Op._Manual_EN-DE-IT-ES-FR-RU).docx
English
•
The fan is broken
•
Wrong fan rotating direction
•
Too high ambient
temperature
•
Chiller operating without
lateral panels
Compressor
Cause
Cause
Replace the fan
Verify the connection on the terminal board of the electrical box; Check the
right rotation of the electrical motor (only 3 phase version)
Check that the chiller is located in a place that can guarantee suitable
ventilation of the refrigerating unit.
Check that the ambient temperature does not exceed the max T indicated on
the chiller label.
Mount the panels on the unit
Note: after solving the cause of the fault, start the chiller by pressing the reset
button located on the external body of the pressure switch itself (see the
picture)
Possible corrective Action
Replace the thermostat
Replace the thermostat
Please ask for the service by a refrigeration engineer
Possible wrong application, to be checked with our staff
Pump
Possible corrective Action
Check the right rotation of the electrical motor (only 3 phase version)
Verify the regulation of hydraulic bypass where installed
Verify circuit pressure drop to reach the nominal flow rate
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