Danfoss AK-SM 800A User Manual Download

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User Guide

Danfoss troubleshooting guide

for supermarket electronics

www.danfoss.com

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Summary of Contents for AK-SM 800A

Page 1: ...User Guide Danfoss troubleshooting guide for supermarket electronics www danfoss com...

Page 2: ...C 550A to AK SM 800 7 Dual Temp Setup 7 4 AK CC 750 7 Replacing AK CC 750 7 5 AK XM Modules 7 AKS Temp Sensor not Reading on IO Module 7 AK XM 103A module not coming online 7 Relay will not respond to...

Page 3: ...should be 24 V AC DC 2 Verify Channel Lonworks enabled on Network Nodes screen a If not enable and rescan afterwards 3 Verify term resistor switch position at AK SM 800 is correct a If 1 loop from pl...

Page 4: ...4 Replace AK SM 800 IO Offline 1 Verify Power to modules Complete rescan a Power supply to comm modules should be 24 V AC DC 2 Verify Channel Lonworks enabled on Network Nodes screen a If not enable...

Page 5: ...ue address 3 Verify connection from AK SM 800 to switch and switch to network a Could be the issue with the cable b Power cycle network switch router or cell modem 4 Reset AK SM 800 a Make sure to res...

Page 6: ...dc c Measure voltage across terminals 31 32 Should be in range of 0 5 4 5Vdc d Verify transducer type Label of transducer should say AKS32R HFC or AKS 2050 CO2 S3 Error E25 1 If no return air s3 senso...

Page 7: ...e or loose connection between module and probe b If reading closed likely a short in cable between module and probe c If reading expected resistance compare to temp ohm chart for PT1000 move sensor to...

Page 8: ...ion IO Offline 1 Verify Power to modules Complete rescan 2 Verify Channel Lonworks enabled on Network Nodes screen a If not update and rescan afterwards 3 Verify EOL resistor in place at end of loop a...

Page 9: ...oftware reinstall AKA65 software outside of Program Files or Program Files x86 folder 3 Obtain generic copy of aka65 ini file place in C Windows folder replace existing Unable to locate compatible Win...

Page 10: ...Danfoss Climate Solutions 2022 02 BC337731384771en 000301 10...

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