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Cod. 710.0167.01.00 Rev02 

– 10.2019 

© Copyright 2019 OMI Srl - All rights reserved

 

12 

– 12

 

5. SAFETY INFORMATION 

 

5.1  General safety instruction 

 

SAFETY INFORMATION  
This dryer has been designed and manufactured in accordance with the European safety directive  
2006/42/EU 

 

Machine Directive 

2006/95/EU 

 

Low tension Directive 

2004/108/EU  

 

Electromagnetical compatibility Directive  

2014/68/EU 

 

PED Directive  

According  to  PED Directive,  this plant  is  supplied with safety  devices  on  the  frigorific  circuit, calibrated according  to  the 
under mentioned specifications.  
The working life of such equipments is expected between 10 and 20 years. 
Any installation, use and maintenance operations must be done according to the instructions contained in this manual and 
in accordance to the national rules.  
Any cleaning/maintenance operation which needs access to the dryer must be carried out by qualified and export personnel 
who must be aware of all necessary precautions.  
The machine has been designed and manufactured to be used in conformity to the following specifications. 
In  case  of  different  use  of  the 

machine  or  not  in  conformity  to  this  manual,  the  Manufacturer  can’t  be  accused  of  any 

responsibility. 

 

5.2  Equipment nameplate values 

 

(Nameplate values extracted from Calculation data sheet)  

Fluid 

  

  

Circuit Side 

Press. Max. Amm. 

Safety devices set   Work. Temp 

Design Temp 

 

 

  

 

MAWP 

 

 

 

  

  

  

  

  

"PS"  (bar rel) 

(bar rel) 

(°C) 

(°C) 

Freon HFC                                

(R507, R407c, R134a, R404a) 

  

 

Ambient 55°C 

Ambient 45°C 

See ATTACHMENTS 

TO THIS MANUAL 

 

 C) Technical data 

sheet

 

  

  

R134a R407c 

R404a, R507 

  
  
  

  

Low press. -LP 

20 

20 

min  -10° 

min   -15° 

High Press.   -HP 

31 

31 

max +120° 

max  +120° 

High Press. WATER  -HP 

30 

30 

 

 

Compressed air 

Compress. Air Side 

min  0 

  

(Customer care) 

   

min   0° 

min   -15° 

 

 

max. 16 

max +60° 

max  +60° 

Ambient air 

  

Ventilation side 

Atm. 

  

( Not Appl.) 

min   5° 

min   -15° 

 

  

 

  

  

  

  

  

max +55° 

max. +55° 

*  -  Safety Pressure switch Cat IV PED, Manual reset 

 

 

 

 

 

 

 Welding Joints Coefficient 

 

0,7   

(Table 5.6-1) 

 Tickness allowance 

 

0  mm 

( For copper ) 

 

   (Not required for surfaces in contact with freon - EN 14276-1) 

1  mm 

( For carbon steel ) 

 

Manufacturer design code 

 

 

 

 

717.0012.01.00 

Essential Safety Requirements 

 

 

 

ON10.0010.09 

Manufacturer Working Procedure 

 

 

 

PO 08.2 

Assembly classification according 2014/68/EU 

 

 

See Declaration of Conformity 

 

Evaluation Module according 2014/68/EU  

 

 

See Declaration of Conformity 

PED Notified Body number 

 

 

 

 

See Declaration of Conformity 

 

5.3  Information about remaining risks of the equipment 

 

Fire: 

This equipment, in accordance to EN-378-

2, isn’t supplied with freon drain safety valve. 

In case of fire it is preferable to use fire extinguishers or extinction systems basically composed of powder or foam or carbon dioxide: it is possible to 
cool the equipment thanks to nebulized water. 
Avoid the massive use of water because, in case of freon gas leak, the chemical reaction can cause caustic effects, even if small. 
In any case it is necessary to cool down the ambient and/or the equipment’s temperature and before any intervention wait until the temperature has 
been reduced.  
Therefore it is preferable to insert this equipment into the Fire Prevention and Factory Safety Plan. 
Arrange adequate actions capable to prevent and fight the possible risk. 
 

Dispersion of freon gas in the ambient: 

the refrigerant means is toxic only if inhaled at high concentration:  it is necessary to provide an adequate ventilation in the room  where the equipment 
is installed. 
In any case check the scheme showing the values and the risk sentences. 
 

Excessive pressure on the compressed air side: 

this equipment isn’t supplied with safety devices on the compressed air side. 
The safety devices on the compressed air side must be carried out by the installer. 
Such devices will have to be carried out according to the applicable National Norms and to the limits mentioned in this Manual. 
 

Ozone layer deterioration: 

The adoption of HFC freon reduce to the minimum ozone layer deterioration and greenhouse effect. 
 

 

Summary of Contents for DD36

Page 1: ...67 01 00 Rev02 10 2019 Copyright 2019 OMI Srl All rights reserved 1 11 DIRECT EXPANSION COMPRESSED AIR DRYERS Operators Manual DD36 DD54 DD72 DD108 DD144 DD180 DD216 DD280 DD340 DD500 DD610 DD750 DD10...

Page 2: ......

Page 3: ...discharge parameters programming 6 3 1 3 Anomaly warning 7 3 1 4 Remote signalling alarm 7 3 2 Before start up 7 3 3 Start up 8 4 MAINTENANCE TROUBLESHOOTING AND DISMANTLING 4 1 Maintenance 8 4 2 Trou...

Page 4: ...Cod 710 0167 01 00 Rev02 10 2019 Copyright 2019 OMI Srl All rights reserved...

Page 5: ...r attention to the risk of electric shock Condensate drain point Rotation direction of the fan Pay particular attention to the risk of moving parts Explosion risk Lifting point Don t lift from this po...

Page 6: ...counterflow the initial air air exchanger and it is reheated by the inlet hot air with the consequence of energy recovering and also reduction of the relative humidity contained in the outflowing air...

Page 7: ...mpt to lift heavy objects without proper lifting equipment i e crane hoist slings or fork truck Lifting any unit without proper lifting equipment may cause serious injury Use fork lift channels where...

Page 8: ...ective device to protect the equipment at high temperature from the risk of exceeding the maximum allowable temperature 3 START UP Ensure that the dryer is by passed or there is no load on the cooler...

Page 9: ...LING LEDS DD1300 DISPLAY DESCRIPTION the unit is in ENERGY SAVING mode the unit is ON with low load the unit is ON with normal load the unit is ON with normal high load the unit is ON with high load L...

Page 10: ...disconnect the electrical power before performing any operation on the machine 3 1 2 CONDENSATE DISCHARGE PARAMETERS PROGRAMMING Push the SET key for 10 seconds to enter the parameters configuration...

Page 11: ...d alarms Alarm output ON Refrig Compressor output OFF Fan output ON Drain cycle standard Call your local OMI distributor Note PF1 has priority on all other messages 3 1 4 REMOTE SIGNALING ALARM OPTION...

Page 12: ...N OFF switch to stop the dryer Otherwise wait 10 minutes before switching the dryer on again in order to allow freon pressure to rebalance 4 MAINTENANCE TROUBLESHOOTING AND DECOMMISSIONING 4 1 MAINTEN...

Page 13: ...the condensate drainage system filter mesh Replace the coil of the drainage solenoid valve if burned Clean or replace the drainage solenoid valve if clogged jammed Check the C8 and C9 parameters of th...

Page 14: ...ouble persists replace it Contact our Service Centre to check the gas charge Clog Check if the compressed air inlet outlet is connected properly Check if the connecting tubing is clogged in case proce...

Page 15: ...ctricity supply to the dryer and then affix appropriate warning signs to avoid the machine being reconnected to the electricity mains Please consult the contents and the safety instructions in the rel...

Page 16: ...nts Coefficient z 0 7 Table 5 6 1 Tickness allowance c 0 mm For copper Not required for surfaces in contact with freon EN 14276 1 c 1 mm For carbon steel Manufacturer design code 717 0012 01 00 Essent...

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