morse AHT 20 Manuel D'instructions page 20

5.15 ELECTRONIC LEVEL CONTROLLED CONDENSATE DRAIN BEKOMAT 31
The electronic level controlled drain BEKOMAT has a special condensate management that makes sure that
condensate is drained safely without any unnecessary air-loss. This drain consists of a condensate accumulator
where a capacitive sensor continuously checking liquid level is placed: as soon as the accumulator is filled, the
sensor passes a signal to the electronic control and a diaphragm solenoid valve will open to discharge the
condensate. Right in time the discharge line will be closed again without wasting compressed air.
ATTENTION! These BEKOMAT condensate drains have been specially designed for the use in a
refrigerant dryer AHT. Any Installation in other compressed air treatment units or the exchange against a
different drain brand may lead to malfunction. Do not exceed the max. operating pressure (see type plate)!
MAKE SURE WHEN THE DRYER STARTS THE UPSTREAM VALVE IS OPEN.
CONTROL PANEL FOR BEKOMAT 31 AHT 20-100
Power
T E S T
MEMBRANE FUNCTION OF BEKOMAT 31 AHT 20-100
TROUBLESHOOTING BEKOMAT 31 AHT 20-100
The detection of defects should be carried out by qualified personnel.
SYMPTOM
No led lighting up.
Pressing of Test
button, but no
condensate discharge.
Condensate discharge
only when Test button
is pressed.
Drain keeps blowing
off air.
Drain in alarm
condition.
The control panel here illustrated allows checking of drain working.
Power-LED ON - drain ready to work / supplied
Test : test button - discharge test (keep pushed for 2 seconds)
POSSIBLE CAUSE - SUGGESTED ACTION
Check for mains failure.
Verify the electric wiring (internal and/or external).
Check internal printed circuit board for possible damage.
The service valve located before the drain is closed - open it.
The dryer is not under pressure - restore nominal condition.
Solenoid valve defective. Replace Service Unit (see para 5.17 MAINTENANCE
BEKOMAT).
The internal printed circuit board is damaged - replace the drain.
Too much internal dirt. Replace Service Unit
BEKOMAT).
Replace Service Unit (see para 5.17 MAINTENANCE BEKOMAT).
The service valve located before the drain is closed - open it.
The dryer is not under pressure - restore nominal condition.
Replace service unit (see para 5.17 MAINTENANCE BEKOMAT).
(see para 5.17 MAINTENANCE
GB