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Maintenance, troubleshooting, spare parts and dismantling
Failure during the
condensate discharge.
Water in the line.
If installed :
The HPS high-pressure
switch has triggered.
If installed:
the LPS low-pressure
switch was triggered.
If installed:
the TS safety
temperature switch was
triggered.
DMC15 –
The first and the last led
of the display are flashing
syncronous.
DMC15 –
The
yellow led is
flashing (LC 12-35)
DMC15 –
The first led of the display
is flashing.
DMC15 –
The last led of the display
is flashing.
The DMC18
LED
is on.
38
Please read the separate BEKOMAT installation and operating instructions.
chiller
The
does not start – see the corresponding point.
If installed - untreated air flows through the bypass unit – close the bypass.
chiller
The
does not drain condensate – see the corresponding point.
Dew point too high – see the corresponding point.
Check which of the following reasons is responsible for the triggering:
1.
The ambient temperature is too high or the room ventilation insufficient – ensure sufficient
ventilation (air-cooled).
2.
The condenser is dirty – please clean it (air-cooled).
3.
The condenser fan does not work – see the corresponding point (air-cooled).
4.
The cooling water is too hot – re-establish the nominal conditions (water-cooled).
5.
The cooling-water flow is insufficient – re-establish the nominal conditions (water-cooled).
Reset the pressure switch by pressing the button on the controller itself – check the proper
chiller
functioning of the
The HPS pressure switch is defective – contact a BEKO service technician for the replacement.
There is a leak in the refrigeration cycle – please contact a BEKO service technician.
The pressure switch is automatically reset as soon as the normal conditions are re-established –
check the
chiller
for proper functioning.
Check which of the following reasons is responsible for the triggering:
1.
Excess thermal load – re-establish the standard operating conditions.
2.
The inlet air is too hot – re-establish the nominal conditions.
3.
The ambient temperature is too high or the room ventilation insufficient – ensure sufficient
ventilation.
4.
The condenser unit is dirty – please clean it.
5.
The fan does not work – see the corresponding point.
6.
The hot-gas bypass valve needs to be re-adjusted – contact a specialist for refrigerating plants to
have the nominal calibration re-established.
7.
The cooling-water temperature is too low – re-establish the nominal conditions (water-cooled).
8.
The adjusting valve for the cooling-water flow needs to be re-adjusted – contact a specialist to
have the nominal calibration re-established (water-cooled).
9.
There is a leak in the refrigeration cycle – please contact a BEKO service technician.
Reset the temperature switch by manually pushing the button on the temperature switch – check
the perfect functioning of the
The TS temperature switch is defective – replace it.
Verify the electric wiring of T1 DewPoint probe.
The T1 DewPoint probe is faulty - replace it.
The DMC15 electronic control unit is faulty - replace it.
Verify the electric wiring of T2 fan control probe.
The T2 fan control probe is faulty - replace it.
The DMC15 electronic control unit is faulty - replace it.
DewPoint too low - see specific point.
The T1 DewPoint probe is faulty - replace it.
The DMC15 electronic control unit is faulty - replace it.
DewPoint too high - see specific point.
The T1 DewPoint probe is faulty - replace it.
The DMC15 electronic control unit is faulty - replace it.
When the
LED flashes: one or more service warnings/alarms are active. The display
shows the dew point temperature and the active service warnings/alarms.
The service warnings are indicated by the following messages:
1.
: PF – Failure temperature probe T1 (dew point) – check the electric cabling and/or
replace the probe.
2.
: Hdp – Dew point too high (higher than the adjusted alarm value) – see the
corresponding section.
3.
: Ldp – Dew point too low (lower than the adjusted alarm value) – see the
corresponding section.
4.
: drA – The Bekomat BM-IF condensate drain does not work properly - see the
corresponding section.
5.
: SrV - Service – maintenance notification time expired (parameter SrV) – carry out
the scheduled maintenance and reset the hour meter.
NOTE: SrV Service (service time expired) needs to be reset manually (press the
button and keep it pressed for at least 20 seconds).
.
chiller
.
BEKOBLIZZ® LC 12-355
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Table of Contents
Troubleshooting
