Beko BUDL 700 Specifications download pdf (Page 32)

Maintenance, troubleshooting, spares and dismantling

32 DRYPOINT

RS 15 – 1700 HP50 NA

6.2. Troubleshooting

6.2.1. Troubleshooting DRYPOINT RS 15 - 450 HP50 NA

Only qualified personnel should perform troubleshooting and or maintenance operations.

Prior to performing any maintenance or service, be sure that:

•

no part of the machine is powered and that it cannot be connected to the mains supply.

•

no part of the machine is under pressure and that it cannot be connected to the compressed air

system.

•

Maintenance personnel have read and understand the safety and operation instructions in this

manual.

Before attempting any maintenance operation on the dryer, shut it down and wait at least 30 minutes.

Some components can reach high temperature during operation. Avoid contact until system or component

has dissipated heat

SYMPTOM POSSIBLE CAUSE - SUGGESTED ACTION

 The dryer doesn't

start.



Verify that the system is powered.



Verify the electric wiring.

 The compressor

doesn’t work.



Activation of the compressor internal thermal protection - wait for 30 minutes, then retry.



Verify the electric wiring.



Where installed- Replace the internal thermal protection and/or the start-up relay and/or

the start-up capacitor and/or the working capacitor.



The pressure switch PA has been activated - see specific point.



Where installed- The pressure switch PB has been activated - see specific point.



Where installed- The safety thermo-switch TS has been activated - see specific point.



If the compressor still doesn’t work, replace it.

 The fan of the

condenser doesn’t

work (Air-Cooled).



Verify the electric wiring.



DRYPOINT RS 15-40 HP50 NA - The DMC15 electronic controller is faulty - replace it.



DRYPOINT RS 50-450 HP50 NA - PV pressure switch is faulty - replace it.



There is a leak in the refrigerating fluid circuit - contact a refrigeration engineer.



If the fan still doesn't work, replace it.

 DewPoint too high.



The dryer doesn't start - see specific point.



The T1 DewPoint probe doesn’t correctly detect the temperature - ensure the sensor is

pushed into the bottom of copper tube immersion well.



The refrigerating compressor doesn’t work - see specific point.



The ambient temperature is too high or the room aeration is insufficient - provide proper

ventilation (Air-Cooled).



The inlet air is too hot - restore the nominal conditions.



The inlet air pressure is too low - restore the nominal conditions.



The inlet air flow rate is higher than the rate of the dryer - reduce the flow rate - restore

the normal conditions.



The condenser is dirty - clean it (Air-Cooled).



The condenser fan doesn’t work - see specific point (Air-Cooled).



The cooling water is too hot - restore the nominal condition (Water-Cooled).



The cooling water flow is insufficient - restore the nominal condition (Water-Cooled).



The dryer doesn’t drain the condensate - see specific point.



The hot gas by-pass valve is out of setting - contact a refrigeration engineer to restore

the nominal setting.



There is a leak in the refrigerating fluid circuit - contact a refrigeration engineer.

 DewPoint too low.



DRYPOINT RS 15-40 HP50 NA - The fan is always ON - the yellow LED of

DMC15 controller is glowing continuously - see specific point.



DRYPOINT RS 50-450 HP50 NA - The fan is always ON - PV pressure switch is faulty -

replace it (Air-Cooled).



Ambient temperature is too low - restore de nominal condition.



The hot gas by-pass valve is out of setting - contact a refrigeration engineer to restore

the nominal setting.

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Beko BUDL 700 Specifications Page 32

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