AHT 20-350, User Maintenance Manual

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5.16 ELECTRONIC LEVEL CONTROLLED CONDENSATE DRAIN BEKOMAT 32
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 32 AHT 150-350
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)
Malfunction/Alarm
Test : button - discharge test (keep pushed for 2 seconds)
The BEKOMAT 32 also has an alarm mode function:
If normal conditions have not been restored after 1 minute, a fault signal will be triggered:
• Alarm LED flashes.
• Alarm signal switches over (can be transmitted via potential-free contact terminals 2.2, 2.3, 2.4).
• Valve opens every 4 minutes for a period of 7.5 seconds.
Once the fault is cleared, the BEKOMAT will automatically switch back to the normal mode of operation.