H i g h E f f i c i e n c y S o l u t i o n s
EVD ice
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!
User manual
Superheat control
for unipolar electronic expansion valve
Page 1: ...H i g h E f f i c i e n c y S o l u t i o n s EVD ice NO POWER SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT User manual Superheat control for unipolar electronic expansion valve...
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Page 3: ...not use corrosive chemicals solvents or aggressive detergents to clean the device do not use the product for applications other than those specified in the technical manual All of the above suggestio...
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Page 5: ...2 Special control function smooth lines 14 5 3 Service parameters 14 6 PROTECTORS 15 6 1 Protectors 15 7 PARAMETERS TABLE 17 8 NETWORK CONNECTION 18 8 1 RS485 serial configuration 18 8 2 Network conne...
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Page 7: ...om controllers 1 1 Models P N Description EVDM011R3 EVD ice 115 230 V E2V stator display EVDM011R1 EVD ice 115 230 V E2V stator display Ultracap module connector EVDM011R4 EVD ice 115 230 V E3V stator...
Page 8: ...portant install EVD ice on the evaporator away from the places where ice forms connect the power and serial cables in the IP65 junction box for assembly of the E2V E3V valve see the ExV system guide 0...
Page 9: ...Regulator P T EEV M Condenser Electrical panel Compressor Condenser unit Evaporator unit Solenoid valve IP65 L N Fig 2 d WITHOUT SOLENOID VALVE WITH ULTRACAP MODULE COLD ROOM IN COLD ROOM OUT COLD RO...
Page 10: ...d pressure probe see the chapter on Commissioning 2 connectthepowercableandthedigitalinputcable forthemaximum length see the technical specifications 3 poweronthedriver thedisplaywilllightup andthedri...
Page 11: ...than 9 are displayed in two steps first the sign then the tens and units GASType Mode Super Heat GASType Mode Super Heat 123 GASType Mode Super Heat GASType Mode Super Heat 99 Fig 3 b Note the decima...
Page 12: ...Superheat set point GASType Mode Super Heat 7 Press PRG Set for 2 seconds to exit the commissioning procedure and start control The standard display is shown 4 2 Parameters first configuration Import...
Page 13: ...through the nozzle corresponds to the flow rate required by the compressor In this way the evaporation process will take place along the entire length of the evaporator and there will be no liquid at...
Page 14: ...ol temperature approaches the set point the Smooth_line parameter is used to prevent the valve from closing by reducing the evaporator s cooling capacity In order to use this function the digital inpu...
Page 15: ...activation threshold depending on the operating conditions of the controlled unit this is set in Service programming mode integration time which determines the intensity if set to 0 the protector is...
Page 16: ...refrigerant charge or when there are sudden variations in the load The protector is also useful in multiplexed systems showcases as allows all the utilities to be enabled at the same time without cau...
Page 17: ...Po Valve opening 0 100 A 1 0 R CP PID proportional gain 15 0 800 A 11 10 R W ti PID integral time 150 0 999 s I 17 144 R W C1 LowSH protection threshold 5 9 5 9 Superheat set point K F A 12 11 R W C2...
Page 18: ...00 2 stop bit parity odd 15 4800 1 stop bit parity odd 16 9600 1 stop bit parity odd 17 19200 1 stop bit parity odd 2 0 17 Important all controllers connected in a serial network need to be set with t...
Page 19: ...RS485 rear connector Offline Device model Online Offline Device setup Read instant values of control parameters Select Load to load a list of project parameters hex modify and save a new project Setup...
Page 20: ...iguration page parameters p_GAS_TYPE refrigerant and p_SUPER_MAIN_REGULATION type of control b on the Configuration page parameter p_SH_SET Fig 8 m 3 Savethelistofparameterswithanewname forexample NEW...
Page 21: ...om dew_f_l Dew f low 17239 32768 32767 I 35 162 R W Net_alarm Network alarm 0 0 1 D 1 0 R all E6 Emergency_closing_alarm Mains power failure 0 0 1 D 2 1 R all E5 S1_alarm Probe S1 alarm 0 0 1 D 3 2 R...
Page 22: ...r or when reaching the control set point It can also occur when opening the digital input which involves closing the valve or in the event of a probe alarm In general it can be said that the electroni...
Page 23: ...a power failure proceed as follows remove the valve stator set the PID proportional gain 0 The valve will remain stopped at the initial opening position set by corresponding parameter Retrieve physica...
Page 24: ...ent of probe or valve malfunctions to protect the compressor using the relay to control the solenoid valve or to simply signal a possible risk In fact incorrect measurement of the evaporation pressure...
Page 25: ...inets only Decrease the value of the Valve opening at start up parameter on all the utilities making sure that there are no repercussions on the control temperature Liquid returns to the compressor on...
Page 26: ...the valve by placing it in manual control and closing or opening it com pletely One complete opening must bring a decrease in the superheat and vice versa If the movement is reversed check the electri...
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Page 28: ...EL INDUSTRIES HeadQuarters Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 e mail carel carel com www carel com Agenzia Agency EVD ice 0300038EN rel 1 1 23 04 20...
