Danfoss AK-CH 650 Service Manual Download | Manualshive

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Capacity controller

for water chiller

AK-CH 650

Service Guide

ADAP-KOOL

®

Refrigeration control systems

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Summary of Contents for AK-CH 650

Page 1: ...Capacity controller for water chiller AK CH 650 Service Guide ADAP KOOL Refrigeration control systems...

Page 2: ...ritten out They can only be made from the Service Tool programme There are four kinds of settings ON OFF settings settings with a variable value time settings and reset alarms Enter the new value or m...

Page 3: ...Read the next section Documentation Documentation Documentation of the settings of the individual controllers can be made with the print function in the AKM programme Select the controller for which...

Page 4: ...details about the predefined applications Refrigerant type Po Select refrigerant type 0 not selected 1 R12 2 R22 3 R134a 4 R502 5 R717 6 R13 7 R13b1 8 R23 9 R500 10 R503 11 R114 12 R142b 13 User defi...

Page 5: ...make the best possible fit to actual load 0 Sequential 2 Cyclic 3 Best fit S4 Min 24h Minimum value for S4 temp For the last 24 hours S4 Max 24h Maximum value for S4 temp For the last 24 hours S4 Aver...

Page 6: ...e start of the first compressor Extra cooling mode A relay is reserved and it will be activated if the brine temperature is higher than desired Extra cooling offset Set the value K above the reference...

Page 7: ...in compressor capacity in of total capacity Request Comp Cap Reference for compressor capacity deviations may be due to time delays Cond ctrl temp C Actual temperature for control sensor Pc or S7 S7...

Page 8: ...t stop the defrost is stopped when the temperature of the selected defrost sensor reached the set value Max defrost time Max permitted defrosting time in minutes security time for stop using temperatu...

Page 9: ...AUTO The capacity is controlled by the PI controller Manual capacity Manual setting of condenser capacity The value is in of total capacity controlled by the controller Reference mode 0 Set point Refe...

Page 10: ...n Actual cold brine return temperature measured with S3 temp sensor P0 C Suction pressure in C Measured with the pressure transmitter Comp ctrl Ref C Actual reference temperature for compressor contro...

Page 11: ...be due to time delays Cond ctrl temp C Actual temperature for control sensor Pc or S7 S7 warm brine C Actual warm brine temperature for S7 media sensor Only used if S7 sensor is selected as regulatio...

Page 12: ...age inputs Measurements AK error When ON the controller is in alarm condition Comp Ctrl temp Actual temperature for compressor control S4 Cold brine supply Actual cold brine supply temperature measure...

Page 13: ...y mode Regulation has stopped Low P0 Minimum safety limit for suction pressure P0 has been violated High S4 High alarm limit for S4 has been exceeded Low S4 Low alarm limit for S4 has been exceeded Hi...

Page 14: ...nfoss reserves the right to alter its products without notice This also applies to products already on order provided that such alternations can be made without subsequential changes being necessary i...

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