User Guide
|
Optyma™ control AK-RC 113 three phase
16 | BC317523579312en-000101
© Danfoss | DCS (vt) | 2020.03
7.2 Troubleshooting
If there is not an alarm code, we list below some of the most common causes that can cause
anomalies. These causes can be due to problems internal or external to the electrical panel.
Event
Possible cause
Operation to be performed
The compressor
doesn’t start
Display is OFF
Absence of power supply.
• Check that the display on the panel and the plant in
operation green light are on.
• Check the connections of the ambient probe.
• If the problem persists replace the sensor.
Intervention of the general
protection circuit breaker.
• Before reinserting the circuit breaker, check that
there are no short circuits. Then reinsert the circuit
breaker checking all the absorptions to identify any
anomalies.
Intervention of the circuit breaker
of the auxiliary circuits.
• Before reinserting the circuit breaker, check that
there are no short circuits. Then reinsert the circuit
breaker checking all the absorptions to identify any
anomalies.
Intervention of the secondary
circuit protection fuse on the
transformer.
• Restore the fuse (Glass fuse 10x20 F250mA 250V).
• Check that the absorption on the econdary of the
transformer does not exceed 0.25A.
• Check that no other users have been connected to
the Kriwan power supply terminals.
• Check that there are no short circuits on the
secondary circuit.
The compressor
doesn’t start
The panel is in stand-by.
• Verify that the panel is not in standby mode (flashing
green light). In this case, press the key to
reactivate the panel (green light
on steady).
Intervention or anomaly of
pressure switches or kriwan.
• Check the electrical connections, the calibrations
and the correct functioning of the sensors and the
compressor.
• If it is the first ignition, check the presence of the
"PumpDown / Thermostat" operating mode selection
bridge on terminal board X1 and jumper the consent
terminals of the devices not present in the system
(Pressure Switches, Kriwan)
The defrost cycle is
not performed
Incorrect setting of the
parameters relating to the defrost
cycle
• Check the correct entry of the parameters.