Comet XRCA-3023-WA, Руководство пользователя

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Disruptions
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8. Disruptions
8.1. Safety
Adhere to the safety regulations detailed in chapter "Safety".
In the event of fault diagnostics follow the guidelines detailed below:

Only sufficiently qualified personnel may perform maintenance on the unit.

Do not attempt to repair the refrigeration circuit.

If you cannot determine the error, please contact COMET services.
8.2. Disruption in operation
The most common reason for disruption in operation of the unit is improper maintenance. Mainte-
nance should be carried out regularly according to the maintenance intervals defined in chapter
"Maintenance and cleaning", see "Maintenance and cleaning".
In case of disruption start with checking the following:

Coolant polluted?

Low coolant contents because of leakage, evaporation or an extended cooling circuit
with long hoses?

Heat exchanger (condenser) polluted?

Fan polluted or blocked?

Filter strainer in a closed hydraulic circuit polluted or blocked?
More help can be found in the following paragraph.
In case you do not succeed in identifying the problem cause by means of this manual, please con-
tact the service department of COMET.
8.2.1. Troubleshooting
For trouble shooting you may rely on the following:

Alarm signaling within the safety circuit of the unit to be cooled

Wiring diagram

Flow chart

Trouble shooting table given below
Fault table
Fault Possible cause Corrective measures Clearance by
Unit does not
start Power not applied. Elec-
trical connection not cor-
rect or no mains connec-
tion Check power supply and ensure
proper voltage in the line. Check
connection, insert mains plug. Operator
Coolant level too low.
Red warning lamp shows
a lack of coolant Check coolant level and top up, if
necessary, see "Adding coolant". Operator