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Cod. 710.0201.01.00 Rev.01 

– 05.2022 

© Copyright 2022 OMI Srl - All rights reserved

 

6 - 11 

 

 

 

3.1.2 CONDENSATE DISCHARGE PARAMETERS PROGRAMMING 

 

 

 

Push the SET key for 10 seconds to enter the parameters configuration menu: the display will show in sequence 
the set point value, the code of the first modifiable parameter (C8) and its value). 
Only if strictly necessary, use the UP and/or DOWN keys to change the displayed parameter value. 
Press  the  SET  key  to  store  the  previously  changed  parameter  value  or  to  browse  the  parameters  without 
changing them. 
15 seconds after the last performed operation, the controller will return automatically to the normal operation 
mode. 

 
 

 

 

 

PARAMETER 

DESCRIPTION 

RANGE 

DEFAULT SET VALUE 

C8 

Delay between condensate 

discharges 

1 ÷ 240 (min) 

C9 

Time required for condensate 

discharge 

1 ÷ 240 (sec) 

ED88-108   

HP45 

ED180-225 

HP45 

ED270-1200 

HP45 

 
 

NOTE: Changes entered for timing values will be effective only after exiting the programming, while changes to other variables 
will be immediately effective. 
Please remember that eventual changes to the configuration parameters of the machine could negatively affect its efficiency. 
Thus, changes have to be performed by a person familiar with the operation of the dryer. 

 
 

 

WARNING FOR USER:IT’S FORBIDDEN TO ATTEMPT TO MODIFY THE OTHER CONFIGURATION PARAMETERS 
OF THE ELECTRONIC CONTROLLER WITHOUT AUTHORIZATION AND COLLABORATION OFOMI

’S 

AUTHORIZED DISTRIBUTOR.

 

 

3.1.3 DISPLAY INDICATIONS 

The  controller  is capable  of  recognizing  certain  types  of  anomalies  in  the  drying circuit.  In  such cases,  a  message  will blink  on  the 
display, alternated to the current dew point value. 

 

MESSAGE 

(BLINKING) 

CAUSE 

OUTPUTS 

ACTIONS 

HtA 

High dew point value 

(delayed alarm) 

Alarm output ON 
Refrig. Compressor output OFF 
Fan output ON 
Drain cycle standard 

Resettable by switching off the 
dryer.  
If problem persists call your 
localOMI distributor. 

Ht2 

Very high dew point value 

(immediate alarm) 

PF1 

Interruption or short circuit on the 

PTC probe input line 

Alarm output ON 
Refrig. Compressor output OFF 
Fan output OFF 
Drain cycle standard 

Resettable by switching off the 
dryer. May require replacing the 
faulty probe. 
If problem persists call your 
localOMI distributor. 

ESA 

The automatic Energy saving 

mode activated due to low load 

Alarm output OFF 
Refrig. Compressor output OFF 
Fan output OFF 
Drain cycle standard 

No action necessary. 
Automatic Reset 

ES2 

ASt 

Activated after repeated alarms 

Alarm output ON 
Refrig. Compressor output OFF 
Fan output ON 
Drain cycle standard 

Call your localOMI distributor. 

 

Note: PF1 has priority on all other messages. 

 
 
 
 
 

 
 
 

Summary of Contents for ED88 HP45

Page 1: ...Cod 710 0201 01 00 Rev 01 05 2022 Copyright 2022 OMI Srl All rights reserved 1 11 DIRECT EXPANSION COMPRESSED AIR DRYERS Operators Manual ED HP45 88 108 180 225 270 360 480 660 990 1200...

Page 2: ...Cod 710 0201 01 00 Rev 01 05 2022 Copyright 2022 OMI Srl All rights reserved 1 11...

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

Page 4: ...Cod 710 0201 01 00 Rev 01 05 2022 Copyright 2022 OMI Srl All rights reserved 3 11...

Page 5: ...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 point Attention Before perfor...

Page 6: ...rs 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 a...

Page 7: ...tempt 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 wher...

Page 8: ...it is necessary to install a protective device to protect the equipment at high temperature from the risk of exceeding the maximum allowable temperature The dryer is equipped with a safety valve freo...

Page 9: ...en pushed while setting the drain set point it decreases the displayed value of one unit per second during the first 10 seconds than of one unit every 0 1 sec When pushed for 10 seconds during normal...

Page 10: ...amiliar with the operation of the dryer WARNING FOR USER IT S FORBIDDEN TO ATTEMPT TO MODIFY THE OTHER CONFIGURATION PARAMETERS OF THE ELECTRONIC CONTROLLER WITHOUT AUTHORIZATION AND COLLABORATION OFO...

Page 11: ...eration and it doesn t require any calibration Nevertheless it s necessary to check the operating performances during the first working hours 3 3 START UP The operations specified below must be perfor...

Page 12: ...eck the condition of any filters installed with the dryer Replace elements as needed YEARLY OR EVERY 2000 HOURS OF OPERATION Check if the flexible tube used for condensate drainage is damaged and repl...

Page 13: ...t Problems with cabling or with the electronic control board Check the cabling and the electronic control board if the trouble persists replace them Activation of compressor s internal thermal protect...

Page 14: ...ondensate drainage Drainage solenoid valve jammed clean or replace it Verify the condensate drainage times set on the electronic control board C8 and C9 Check the signal from the control board if it i...

Page 15: ...electricity 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...

Page 16: ...reset Welding Joints 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...

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