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10

 

 

 
 
 

Excessive coolant 

consumption.

 

 

Blocked scavenge line 

Ruptured or fouled 

separator element 

Clear the blockage. 

Change the element. 

Rapid cycling or 

receiver will not 
blow down to 

unloaded running 
pressure. 

 

System is not using enough 

air, increase consumption. 

Minimum pressure valve 

(MPV) stuck open. 

Strip the MPV, examine and 

repair if necessary. 

Compressor will not 

load.

 

 

Inlet valve not opening 

 

Check that the valve is free 

to open. 

 

Check the operation of the 

load solenoid valve 1SV. 

 

Compressor fails to 

deliver rated 
capacity. 

Check the operation of 

the inlet valve. 
 

Check the offline/online pressure 

setting. 
 

Check the operation of 

the load solenoid valve 
1SV. 

 

Check the inlet filter for 

contamination. The L.E.D. should 
indicate if it is blocked.  

(ENH controller only) 

 

Summary of Contents for R110IU-10

Page 1: ...Fault Finding Guide for the R90 160 IU More than Air Answers Online answers http www air irco com PHONE 1 800 820 0308 WSV June 07...

Page 2: ...system Close and lock all access doors when the compressor is left unattended Do not use extinguishers intended for Class A or Class B fires on electrical fires Use only extinguishers suitable for cl...

Page 3: ...e Intellisys S3 Controller 23 25 Analog Inputs Outputs Information and Comments Digital Inputs Outputs 12 S3 Intellisys Controller Serial Communications Information 26 13 Eiger Maintenance Intervals 2...

Page 4: ...vices This controller is different than other Intellisys controllers in that the relay outputs are not solid state triacs they are relays that are turned on an off by an internal 24 VDC power supply c...

Page 5: ...5 S3 Intellisys Controller Operating Instructions...

Page 6: ...6 Software Navigation...

Page 7: ...7 Eiger Controller Fault Indicators 020 Tr Motor PTC Open High Motor Temperature...

Page 8: ...Controller has no power to relay outputs This controller has no provision to detect a power loss to the relay outputs Reset controller Insufficient Coolant Circulation insufficient cooling Compressor...

Page 9: ...and check that the air end and motor rotate freely Check the separator element for excessive pressure drop Set the motor overload on star delta at 67 FLA SF of motor name plate data tag Measure curre...

Page 10: ...MPV stuck open Strip the MPV examine and repair if necessary Compressor will not load Inlet valve not opening Check that the valve is free to open Check the operation of the load solenoid valve 1SV C...

Page 11: ...Stop Fault T 2 Incoming power wired to package incorrectly Clear fault hazard twist emergency stop button to reset Compressor will not start below 2 deg C 28 deg F unless fitted with low ambient opti...

Page 12: ...valve and make sure it operates freely Check load solenoid valve and controller operation P1 Sensor calibration failure Fault T 10 Check sensor connection and calibrate or replace if necessary P1 Sens...

Page 13: ...wiring Maintenance due immediately Fault W 15 Maintenance timer has reached 2000 hrs of runtime or 8760 hours clock time Reset time in factory set up menu using access code 1954 Change oil filter Faul...

Page 14: ...14 Star Delta Wiring Diagram...

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Page 16: ...16 Soft Start Wiring Diagram...

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Page 18: ...18 Line Start Schematic...

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Page 20: ...20 Process and Instrumentation Diagram...

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Page 22: ...the discharge air and passing it through the separator much of the water vapor which is naturally present in the air can be removed The coolant system consists of a sump cooler thermostatic valve and...

Page 23: ...he pressure transducer inputs with a known zero Psi input A zero offset calibration should be performed by first the user verifying the pressure applied to the pressure transducer is in fact 0 PSI Ini...

Page 24: ...ck KM3 2 from the 1S KM3 contactor keeps the 2M KM2 contactor from energizing anytime the 1S KM3 contactor is energized Electrical interlocks are wired such that when the 1S KM3 output is de energized...

Page 25: ...c Condensate Interval Time Default 180 Sec Minimum 90 Sec Maximum 300 Sec ENH Modulation The modulation output is used to turn on the modulation solenoid valve anytime the modulation set point is turn...

Page 26: ...e of servicing communications at least twice per second Any serial communications intended for this slave device must be responded to within 500 milliseconds ENH Serial Control Starting the compressor...

Page 27: ...set STD Maintenance Indicator How to display time to maintenance the maintenance timer will display the maintenance timer value in hours and in percentage 2000 or 8760 closest to reaching its respecti...

Page 28: ...28 Maintenance...

Page 29: ...29 Maintenance...

Page 30: ...30 Maintenance...

Page 31: ...31 S3 Controller Input Output Overview AI Analog Input DI Digital Input DO Digital Output...

Page 32: ...less than 2 C The compressor will be in an alarm state and not start if the temperature is below 2 C The compressor will start if the temperature is above 2 C This is only active if Low Ambient LA op...

Page 33: ...er Interface Buttons The 8 buttons located on the controller are to be a raised membrane button used to activate the membrane switch The icon and button oval are not raised Fault Symbols LED Indicator...

Page 34: ...eft on all the time as long as this does not significantly reduce the life of the backlight Icons in the standard LCD display Shutdown in Auto Restart Pressure Control Power Out Restart Active PORO Sc...

Page 35: ...machine operational or fault status will be continuously displayed for all Status displays Compressor Running Unloaded Manual Unloaded Compressor Running and Loaded Flash Icon when the compressor is U...

Page 36: ...etup displays Satus screen Data in Yellow will only be displayed is ENH Default Ae 0 0 0 0 C Airend Discharge Temp 1 Ip 0 0 0 0 PSI Sump Pressure 2 DL 0 0 0 0 PSI Delta pressure DL will not be display...

Page 37: ...0 Pass Code If no buttons are pressed within 30 seconds the display will revert back to the default Status display item Un 0 0 0 0 PSI Unload Pressure Ld 0 0 0 0 PSI Load Pressure As 0 0 0 0 SEC Unloa...

Page 38: ...h for each Trip Fc _ 0 0 1 _ _ _ Fault Code Pd _ _ 6 5 PSI Package Discharge Pressure Ae 2 2 1 0 F Airend Discharge Temperature Rn _ _ _ _ 1 2 3 Run Hours Sp _ _ 6 9PSI Sump Pressure Dt 1 0 3 0 _06 Da...

Page 39: ...Stop Time Po off PORO on off Pt 0 0 1 0 SEC PORO Time Lt 0 0 2 0 SEC Low Ambient Load Delay Time RC 0 0 0 0 _ Remote Control Selection Is _ _ _ _ OFF Integral sequencing Cn 0 0 0 1 Multi 485 Compresso...

Page 40: ...Trips Red Trip LED on solid green LED off When a trip or warning is detected by the controller the following codes and icons should be displayed on the bottom line of the LCD display T Indicates Trip...

Page 41: ...al Requirements All units shall be designed such that the package can operate continuously in ambient temperatures between 35 F 2 C and 115 F 46 C with non condensing humidity from 0 95 from the front...

Page 42: ...nit was running or stopped in auto start stop when power was lost If it is determined this was the case it will start the PORO sequence The control will energize the PORO horn and start a count down o...

Page 43: ...nts which have relatively high constant air demand relative to the compressor capacity the recommended control mode is modulation The modulation control system retains the features of the on line off...

Page 44: ...e main power disconnect switch in the ON position 5 Open the isolation valve and start the compressor 6 Adjust the isolation valve to bring the discharge air pressure to the rated discharge pressure 1...

Page 45: ...45 Standard S3 Menu Structure and Parameters Table 12...

Page 46: ...46 Standard S3 Menu Structure and Parameters Table 12...

Page 47: ...47 Standard S3 Menu Structure and Parameters Table 12...

Page 48: ...48 Standard S3 Menu Structure and Parameters Td Air Temp High Level Trip Fixed Value 109 C 109 C 109 109 Table 13...

Page 49: ...49 Modbus Register Listing...

Page 50: ...50 Table 13 Modbus Register Listing...

Page 51: ...51 Here is a list of trip codes that are very handy to carry with you on a service call Motor PTC Open High Motor Temperature...

Page 52: ...52 Appendix 1 Thermistor 2ATT 34 to 124 C 255 F Air end Discharge...

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Page 58: ...58 General Specifications for Eiger Packages...

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