Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Danfoss Manuals
  4. Controller
  5. EKC 315A
  6. User manual

Danfoss EKC 315A User Manual

Superheat controller
Hide thumbs Also See for EKC 315A:

Advertisement

Quick Links

Download this manual See also: Instruction Manual, Manual
User Guide
Superheat controller
EKC 315A
Advantages
© Danfoss | DCS (ADAP-KOOL®) |2015-03
• The evaporator is charged optimally – even
when there are great variations of load and
suction pressure.
• Energy savings – the adaptive regulation of
the refrigerant injection ensures optimum
utilisation of the evaporator and hence a high
suction pressure.
• Exact temperature control – the combination
of adaptive evaporator and temperature
control ensures great temperature accuracy for
the media.
• The superheating is regulated to the lowest
possible value at the same time as the media
temperature is controlled by the thermostat
function.
The controller and valve can be used where
there are requirements to accurate control
of superheat and temperature in connection
with refrigeration.
E.g.:
• Cold store (air coolers)
• Processing plant (water chillers)
• A/C plant
DKRCI.PS.RP0.D2.02 | 520H7653 | 1

Advertisement

loading

Related Manuals for Danfoss EKC 315A

Summary of Contents for Danfoss EKC 315A

  • Page 1 • The superheating is regulated to the lowest possible value at the same time as the media temperature is controlled by the thermostat function. © Danfoss | DCS (ADAP-KOOL®) |2015-03 DKRCI.PS.RP0.D2.02 | 520H7653 | 1...
  • Page 2 User Guide | Superheat controller, EKC 315A Introduction Functions • Regulation of superheat • Temperature control • MOP function • ON/OFF input for start/stop of regulation • Input signal that can displace the superheat reference or the temperature reference Water chiller application Air cooler application •...

  • Page 3: Operation

    User Guide | Superheat controller, EKC 315A Operation Superheat function You may choose between two kinds of superheat, either: • Adaptive superheat or • Load-defined superheat The MOP function limits the valve’s opening degree as long as the evaporating pressure is higher than the set MOP value.

  • Page 4: Survey Of Functions

    User Guide | Superheat controller, EKC 315A Survey of functions Function Para- Parameter by operation via meter data communication Normal display Normally the superheat is shown (but the valve’s opening degree or air temperature SH / OD% / S3 temp may also be selected.
  • Page 5 User Guide | Superheat controller, EKC 315A Control parameters P: Amplification factor Kp Kp factor If the Kp value is reduced the regulation becomes slower. I: Integration time Tn Tn sec. If the Tn value is increased the regulation becomes slower D: Differentiation time Td Td sec.
  • Page 6 User Guide | Superheat controller, EKC 315A Miscellaneous Address If the controller is built into a network with data communication, it must have an Following installation of a data com- address, and the master gateway of the data communication must then know this munication module, the controller can address.
  • Page 7 User Guide | Superheat controller, EKC 315A Refrigerant setting Refrigerant Before refrigeration can be started, the refrigerant must be defined. You can select the following refrigerants: 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 defined. 14=R32. 15=R227. 16=R401A.

  • Page 8: Menu Survey

    User Guide | Superheat controller, EKC 315A Menu survey Operation SW =1.4x Para- Factory Function Min. Max. Display meter setting The values will be shown with three digits, and with a setting you Normal display can determine whether the temperature are to be shown in °C or Shows the actual superheat/ valve's opening in °F.
  • Page 9 User Guide | Superheat controller, EKC 315A Define input signal on the analog input AIA: The controller can give the following messages: 0: no signal, Fault in controller 1: Temperature setpoint. 0-20 mA 2: Temperature setpoint. 4-20 mA Valve’s actuator temperature outside its range 3: Displacement of superheat reference.
  • Page 10 User Guide | Superheat controller, EKC 315A Data 24 V a.c. +/-15% 50/60 Hz, (80 VA) Supply voltage (the supply voltage is galvanically separated from the input and output signals) Power consump- Controller 5 VA tion TQ actuator 75 VA...
  • Page 11 Installation considerations Accidental damage, poor installation, or site conditions, can give Danfoss wil not be responsible for any goods, or plant compo- rise to malfunctions of the control system, and ultimately lead to a nents, damaged as a result of the above defects. It is the installer's plant breakdown.
  • Page 12 User Guide | Superheat controller, EKC 315A Appendix 5 Appendix 6 Standby temperatures for TQ valves. The two types of regulation for superheat are, as follows: TQ valve Adaptive superheat The valve’s actuator temperature is limited, both when regula- tion is stopped and when the valve is right out at the opening point and closing point.
  • Page 13 User Guide | Superheat controller, EKC 315A Start of controller When the electric wires have been connected to the controller, 4. Follow the actual room temperature or superheat on the the following points have to be attended to before the regulation display.
  • Page 14 User Guide | Superheat controller, EKC 315A © Danfoss | DCS (ADAP-KOOL®) | 2015-03 DKRCI.PS.RP0.D2.02 | 520H7653 | 14...
  • Page 15 User Guide | Superheat controller, EKC 315A © Danfoss | DCS (ADAP-KOOL®) | 2015-03 DKRCI.PS.RP0.D2.02 | 520H7653| 15...
  • Page 16 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss 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 in specifications already agreed.