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ENGLISH 

 

Cod. 2200780118  04 -  Edition 08/2020 - 15 

 

9. 

Then “rS” is fixed and “°C” blinks on display for about 10 seconds. 

 

The new service interval is now set. 

 

FREEZE PROTECTION FUNCTION 
 

Once the digital controller detects a dewpoint temperature below -2°C / 28,4°F during more than 2 
minutes, (L2 Alarms), it switches off the refrigerant compressor.  
 

AUTOMATIC CUT OUT OF REFRIGERANT COMPRESSOR 

 
If the refrigerant temperature detected at the delivery pipe of refrigerant compressor overcome the 
limit setted by manufacturer, the controller stops the refrigerant compressor in order to avoid further 
possible failure. 

 

RESETTING THE DRYER AFTER A REFRIGERANT COMPRESSOR STOP 
 

Press button 7 to reset the alarm. 
 
The dryer restarts when both the following conditions are true. 
 

 

The dewpoint temperature is higher than -2°C / 28,4°F 

 

30 second are passed from the refrigerant compressor stop (minimum balancing pressure 

stop time). 
A countdown is available if the reset is made before the minimum stop time. 

 

SILENT ALARM FUNCTION 
 

To snooze the alarm, press button 5. 

 
REFRIGERANT COMPRESSOR DISCHARGE TEMPERATURE VISUALIZATION FUNCTION 
 

To see the discharge refrigerant compressor temperature, follow steps 1 to 5: 
 
1.  PDP is showing standard view. 
2.  Push and hold buttons SET (6) and DOWN (8) to enter the menu. 
3. 

Push and release the UP button (7) until message “S3” appears on display. 

 

4. 

Push and release the SET button (7) to enter the “S3” parameter. 

5.  Current temperature of discharge refrigerant compressor is displayed. 

  

 
 

Summary of Contents for QPNC354

Page 1: ...04 Edition 08 2020 1 INSTRUCTION AND MAINTENANCE MANUAL DRYERS QPNC354 E11 QPNC424 E12 QPNC530 E13 QPNC636 E14 R410A Code 2200780118 04 Edit 08 2020 READ THIS MANUAL CAREFULLY BEFORE CARRYING OUT ANY...

Page 2: ...ntenance manual is an integral part on the dryer Read this manual carefully before carrying out any operations on the dryer The installation of the dryer and all operations involving it must be perfor...

Page 3: ...ring filter 8 and it expands through the capillary tube 7 and goes back to the evaporator where it produces the refrigerating effect Due to the heat exchange with the compressed air which passes throu...

Page 4: ...ctricvoltage 2 Air not fit for breathing 3 High pressure 4 Fan rotating 5 Hot parts 6 0 DANGER ZONES 6 1 DANGER ZONES 1 2 3 4 Risks present on the whole machine 7 0 SAFETY DEVICES 7 1 SAFETY DEVICES 1...

Page 5: ...ions to be complied with are the following Min room temperature 3 C 37 4 F compulsory Min inlet allowed temperature 3 C 37 4 F Max room temperature 45 C 113 F compulsory Max working pressure 14 bar 20...

Page 6: ...that there are no visibly damaged parts If you are in doubt do not use the machine but apply to the manufacturer technical assistance service or to your dealer The packing material plastic bags polys...

Page 7: ...THE REGULATIONS IN FORCE CONCERNING ELECTRIC PLANTS IS FUNDAMENTAL FOR OPERATOR SAFETY AND FOR THE PROTECTION OF THE MACHINE 12 3 CONNECTION TO THE COMPRESSED AIR NETWORK Fit a manual interception va...

Page 8: ...sure 7 bar 7 bar 101 5 psi Max inlet air temperature 55 C 55 C 131 F Max working pressure 14 bar 14 bar 203 psi 14 0 MACHINE ILLUSTRATION 14 1 GENERAL LAY OUT 1 Refrigerant compressor 7 Freon filter 2...

Page 9: ...emperature alarm Service alarm Refrigerant compressor On Dryer on Flashing SE Maintenance warning Flashing L2 Dewpoint too low Dryer is stopped Flashing H3 Too high discharge temperature of the refrig...

Page 10: ...lean the filter of the automatic condensate drain Every 2000 hours 1 year Replace the filter of automatic condensate drain 2902016102 Every 4000 hours 2 year Replace drain kit 2200902017 16 2 CLEANING...

Page 11: ...ing 2C The dryer is working under bad conditions of condensation Clean the filter from the condensate drain Check the condensate drain Check the flow rate of treated air Check the room temperature Che...

Page 12: ...motor breaker Q2 to the phase sequency relay KPH and to the safety pressure switch AP The contact opens when one of the fault happens EF contact it s in series to the alarms coming from the drain The...

Page 13: ...r buttons If the problem persists replace the controller Maintenance required not remotable Perform the maintenance and reset the alarm RESETTING THE MAINTENANCE WARNING Front panel of the controller...

Page 14: ...RVICE INTERVAL To set the service interval follow steps 1 to 9 1 PDP is showing standard view 2 Push and hold buttons SET 6 and DOWN 8 to enter the menu 3 Message SE appears on display 4 Push and rele...

Page 15: ...T COMPRESSOR STOP Press button 7 to reset the alarm The dryer restarts when both the following conditions are true The dewpoint temperature is higher than 2 C 28 4 F 30 second are passed from the refr...

Page 16: ...HINE ENSURE THAT THE ELECTRIC POWER SUPPLY HAS BEEN DISCONNECTED WAIT AT LEAST TWO HOURS BEFORE STARTING UP AFTER ANY MACHINE MOVEMENT TRANSPORT OR HANDLING 18 1 PRELIMINARY CONTROLS Before starting t...

Page 17: ...ferential switch Ref 4 Fig 11 CALIBRATIONS BYPASS VALVE FOR HOT GAS N B These valves have already been calibrated and they do not require any adjistment A dew point different from the rated one genera...

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