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Manual 

EKC 315A  Industrial Evaporator Controller 

10 

 

USCO.PD.RD0.A1.22 / 521U0092

 

© Danfoss USCO (HMR_MKS), 04-2008

Description of setting

Parameter Minimum Maximum Factory 

setting

Field 

setting

Value of analog output at minimum current (terminals 2 & 5)

(only applicable to AKV/A or TQ)

Lower end of temperature or opening degree range that will yield a current 

output of 0 mA or 4 mA, depending on the selection made for parameter o09 

(only if AKV/A is used)

o27

-94°F

(-70°C)

320°F

(160 °C)

-31 °F

(-35 °C)

Value of analog output at maximum current (terminals 2 & 5)

(only applicable to AKV/A or TQ)

Upper end of temperature or opening degree range that will yield a current 

output of 20 mA.

o28

-94°F

(-70 °C)

320°F

(160 °C)

59°F

(15 °C) 

Refrigerant Setting

The refrigerant must be defined before startup. 

Failure to select the correct 

refrigerant may result in compressor damage.

  1 = R-12               2 = R-22                 3 = R-134a                   4 = R-502              5 = R-717

  6 = R-13               7 = R-13b1            8 = R-23                       9 = R-500            10 = R-503

11 = R-114          12 = R-142b          13 = user defined     14 = R-32              15 = R-227

16 = R-401A       17 = R-507             18 = R-402A               19 = R-404A         20 = R-407C

21 = R-407A       22 = R-407B           23 = R-410A                24 = R-170           25 = R-290

26 = R-600          27 = R-600a           28 = R-744                   29 = R-1270

o30

0

29

0

Miscellaneous parameters (continued)

Содержание EKC 315A

Страница 1: ...Manual REFRIGERATION AND AIR CONDITIONING Superheat controller EKC 315A...

Страница 2: ...ring 3 Operating principle 3 Operating the EKC 315A 4 5 Quick Setup Guide 6 Survey of functions settings and parameters 7 10 Service parameters for troubleshooting 11 Technical data 11 Wiring diagram...

Страница 3: ...ively small refrigerant charge the type ICM valve is recommended In systems with an AKV A valve the capacity can be distributed by using up to three valves in parallel When using more than one AKV A p...

Страница 4: ...r an error in regulation In this situation pushing the upper button for 1 second will cause the alarm or error code to be displayed When an alarm code is displayed by pushing the upper button the alar...

Страница 5: ...parameter you have scrolled to Press the both buttons simultaneously To increase the setting Press the upper button To decrease the setting Press the lower button To save the new setting and return to...

Страница 6: ...actuator s default settings input setting 2 Enter the pressure transmitters working range in parameters o20 min value and o21 max value Note These settings must be entered in gauge pressure and most t...

Страница 7: ...for example for loss due to a long sensor cable r09 18 F 10 K 18 F 10 K 0 F 0 K Offset of temperature sensor S3 signal To calibrate the sensor reading or to compensate for example for loss due to a lo...

Страница 8: ...half n19 0 2 1 0 0 3 Amplification factor for superheat only in 1 1 systems This setting determines the ICM or AKV valve s opening degree as a function of the change in evaporating pressure An increas...

Страница 9: ...fset At maximum AI the offset will be as set in parameter r06 o10 0 4 0 Frequency Must be set to the frequency of the 24 Vac power source o12 0 50 Hz 1 60 Hz 0 50 Hz Selection of normal display conten...

Страница 10: ...F 35 C Value of analog output at maximum current terminals 2 5 only applicable to AKV A or TQ Upper end of temperature or opening degree range that will yield a current output of 20 mA o28 94 F 70 C 3...

Страница 11: ...ctive complied and EMC demands re CE marking complied with LVD tested according to EN 60730 1 and EN 60730 2 9 EMC tested according to EN50081 1and EN 50082 2 Service Parameters for Troubleshooting vi...

Страница 12: ...tional power source needed Terminal pairs Description 17 18 Signal from TQ discontinued valve actuator See Appendix 1 for TQ wiring diagram 18 19 Optional current input from PLC or other source for of...

Страница 13: ...er than the integration time Tn parameter n05 time Tp Tn Tn is say 240 seconds 1 Increase Tn to 1 2 times Tp 2 Wait until the system is in balance again 3 If there is still oscillation reduce Kp initi...

Страница 14: ...o types of superheat regulation load defined control and adaptive control are shown below For industrial refrigeration applications load defined control should be tried first Load defined superheat Th...

Страница 15: ...Manual EKC 315A Industrial Evaporator Controller 15 USCO PD RD0 A1 22 521U0092 Danfoss USCO HMR_MKS 04 2008...

Страница 16: ...O PD RD0 A1 22 521U0092 Danfoss USCO HMR_MKS 04 2008 Danfoss Inc Refrigeration Air Conditioning Division 7941 Corporate Drive Baltimore MD 21236 Ph 410 931 8250 Fax 410 931 8256 E mail baltimore danfo...

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