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Maintenance, troubleshooting, spare parts and dismantling
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DRYPOINT® RA 3-160
All components concerned are installed inside of the closed housing. The housing must only be opened
by certified skilled personnel.
Some components can reach high temperatures during operation. Avoid any contact until the system or
the component has cooled down.
FAULT
POSSIBLE REASON – SUGGESTED MEASURE
The dryer does not
start.
Check whether or not the connection with the electric mains is established.
Check the electric cabling.
The refrigerating com-
pressor does not work.
Activation of the internal heat protection of the compressor – wait 30 minutes and
then retry.
Check the electric cabling.
If installed – replace the internal heat protection ad/or the start-up relay and/or the
starting capacitor and/or the working capacitor.
If installed – pressure switch PA was activated – see the corresponding point.
If installed – pressure switch PB was activated – see the corresponding point.
If installed – safety temperature switch TS was activated – see the corresponding
point.
In the event that the compressor still does not work, replace it.
The fan of the con-
denser does not work
(air-cooled).
Check the electric cabling.
The PV pressure switch is defective. Contact a BEKO service technician.
There is a leak in the refrigeration cycle – contact a BEKO service technician.
In the event that the fan still does not work, replace it.
The dew point is too
high.
The dryer does not start – see the corresponding point.
The T1 dew point sensor does not record the temperature properly – ensure that the
sensor is pushed down to the bottom of the aluminium tube immersion sleeve.
The refrigerating compressor does not work – see the corresponding point.
The ambient temperature is too high or the room ventilation insufficient – ensure suf-
ficient ventilation (air-cooled).
The inlet air is too hot – re-establish the nominal conditions.
The inlet air pressure is too low – re-establish the nominal conditions.
The inlet air throughput is higher than the throughput of the dryer – reduce the flow
rate – re-establish the nominal conditions.
The condenser is dirty – please clean it (air-cooled).
The condenser fan does not work – see the corresponding point (air-cooled).
The cooling-water flow is insufficient – re-establish the nominal conditions (water-
cooled).
The dryer does not drain the condensate – see the corresponding point.
The setting of the hot gas bypass valve is no longer correct – contact a BEKO service
technician to have the nominal setting re-established.
There is a leak in the refrigeration cycle – contact a BEKO service technician.
Dew point too low.
The fan is always ON – the P
V
pressure switch is defective – replace it (air-cooled).
The ambient temperature is too low – re-establish the nominal conditions.
The setting of the hot gas bypass valve is no longer correct – contact a BEKO service
technician to have the nominal setting re-established.
Extreme pressure drop
in the dryer.
The dryer does not drain the condensate – see the corresponding point.
The dew point is too low – the condensate is frozen and blocks the air – see the cor-
responding point.
Check the flexible connection hoses for restrictions.
The dryer does not
drain the condensate.
The shut-off valve at the condensate outlet is closed – open it.
Check the electric cabling.
The dew point is too low – the condensate is frozen – see the corresponding point.
The BEKOMAT condensate drain does not work properly (see BEKOMAT MANUAL).
Malfunction conden-
sate drainage
Please read the separate BEKOMAT instructions for installation and operation.
Water in the line.
The dryer does not start – see the corresponding point.
If installed
–
untreated air flows pass through the bypass unit – close the bypass.
The dryer does not drain the condensate – see the corresponding point.
Dew point too high – see the corresponding point.
If installed: the P
A
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).
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