Danfoss EKC 326A User Manual Download

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Controller to regulate

CO2 gas pressure

EKC 326A

User Guide

ADAP-KOOL

®

Refrigeration control systems

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Summary of Contents for EKC 326A

Page 1: ...Controller to regulate CO2 gas pressure EKC 326A User Guide ADAP KOOL Refrigeration control systems...

Page 2: ...reading Heat recovery with adjustable reference pressure 0 10 V Optimum heat pump operation System The pressure in the gas cooler is controlled by the valve Regula tion must have inputs from both a pr...

Page 3: ...nput signal of 0 10 V as follows A signal of 1 5 V or above can activate the function and increase the reference to Pgc HR Min If a variable reference is required then a signal between 2 10 V can be c...

Page 4: ...4 Manual RS8FM602 Danfoss 02 2016 EKC 326A Examples Simple heat recovery system Partial heat recovery system Heat recovery system or heat pump system...

Page 5: ...s a signal The function is activated by a voltage signal between 0 10 V Between 0 2 V it is regulated normally At 2 V the reference changes to the setting Pc HR Min At 10 V the reference will increase...

Page 6: ...correspondingly n32 Vhp OD Max Minimum opening degree The closing degree of the ICMTS valve can be limited here Limitation takes place by increasing the lower part of the voltage signal that is sent...

Page 7: ...c Ctrl Receiver reference The reference for receiver control is set here n91 Prec Ref Maximum opening degree The ETS CCM valve s opening degree can be limited here The setting is expressed as a percen...

Page 8: ...the gateway when the menu is set in pos ON The setting will automatically change back to Off after a few seconds o04 Frequency Set the net frequency o12 50 60 Hz 50 0 60 1 Pressure transmitter definit...

Page 9: ...apacity through displacement of the pressure reference 43 Alarms E1 Fault in controller Controller fault E15 Cut out Sgc sensor Sgc o c E16 Short circuited Sgc sensor Sgc S C E20 Fault on the signal f...

Page 10: ...efly will display Prec bar Start stop Start stop of regulation r12 OFF 0 On 1 On 1 Ramp for reference after heat recovery r65 0 1 20 1 Displacement of the Pgc minimum reference n89 during heat recover...

Page 11: ...done in this way Cut out the supply voltage to the controller Keep both buttons depressed at the same time as you recon nect the supply voltage 0 V valve closed 10 V valve open Cable connection 060G1...

Page 12: ...een EKC 326A and the ETS CCM CCMT valve exceeds 5 m a filter must be mounted to obtain the correct valve function The filter must be placed close to EKC 326A L 5 m 5 m L 50 m Dimensions Connection Typ...

Page 13: ...m Signal range 2 10 V Sensor input 1 pcs Pt 1000 ohm Alarm relay 1 pcs SPST 250 V a c AC 1 4 A ohmic AC 15 3 A inductive Actuator ICAD mounted on ICMTS Voltage signal 0 10 mA ETS CCM or CCMT 2 8 Step...

Page 14: ...ure plus set p band As such gas can still be sent through the valve Receiver pressure s min limit A minimum receiver pressure limit can be set If the controller register receiver pressure below the se...

Page 15: ...EKC 326A Manual RS8FM602 Danfoss 02 2016 15 Functions for regulation reference...

Page 16: ...rupted none EKC AO remains 0 V ICMT closes if ICMTS has battery back up No change in opening degree EKC Standby Main Switch OFF A45 Standby mode ICMTS closes ETS closes to Vgbp OD Min setting Sgc inte...

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