Beko Bekoblizz LC 12-355, Инструкция по установке и эксплуатации

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Maintenance, troubleshooting, spare parts and dismantling
38 BEKOBLIZZ® LC 12-355
 Failure during the
condensate discharge.

Please read the separate BEKOMAT installation and operating instructions.
 Water in the line.

The chiller does not start – see the corresponding point.

If installed - untreated air flows through the bypass unit – close the bypass.

The
chiller
does not drain condensate – see the corresponding point.

Dew point too high – see the corresponding point.
 If installed :
The HPS high-pressure
switch has triggered.

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
functioning of the
chiller
.

The HPS pressure switch is defective – contact a BEKO service technician for the replacement.
 If installed:
the LPS low-pressure
switch was triggered.

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.
 If installed:
the TS safety
temperature switch was
triggered.

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
chiller .

The TS temperature switch is defective – replace it.
 DMC15 –
The first and the last led
of the display are flashing
syncronous.

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.

DMC15 –
The yellow led is
flashing (LC 12-35)

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.
 DMC15 –
The first led of the display
is flashing.

DewPoint too low - see specific point.

The T1 DewPoint probe is faulty - replace it.

The DMC15 electronic control unit is faulty - replace it.
 DMC15 –
The last led of the display
is flashing.

DewPoint too high - see specific point.

The T1 DewPoint probe is faulty - replace it.

The DMC15 electronic control unit is faulty - replace it.
 The DMC18 LED
is on.

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).