Carel E2V RB Series User Manual Download Page 1 | Manualshive

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Carel E2V RB Series User Manual Download Page 1

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Summary of Contents for E2V RB Series

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Page 2: ...Guide to the EEV system User manual LEGGI E CONSERVA QUESTE ISTRUZIONI READ AND SAVE THESE INSTRUCTIONS...

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Page 4: ...User manual...

Page 5: ...used or stored in environments that comply with the temperature and humidity limits specified in the manual Do not attempt to open the device in any way other than described in the manual Do not drop...

Page 6: ...probe 11 4 2 Evaporation pressure transducer 12 5 Electrical connections 13 5 1 Connecting the valve to the driver 13 5 2 Probe and power supply connections 14 5 3 Battery module connection for closi...

Page 7: ...Code 030220811 rel 1 0 26 04 2007 6...

Page 8: ...ng of the E2 V valves the table below shows the dimensions of the various models A mm in ch B mm inch C mm inch D mm inch E mm inch F mm inch E2V S0 Inox steel 10 10 127 0 5 0 73 7 2 90 54 7 2 15 48 5...

Page 9: ...n 2 3 Flow of refrigerant and spatial orientation of the valve The recommended direction of connection Figure 2 c sees the inlet on the side of the valve nonetheless the CAREL E2 V valves are bi direc...

Page 10: ...s and or magnetic fields take extreme care to ensure no impurities enter the refrigerant circuit do not install or use the valve if there is deformation or damage to the visible parts outer cap and co...

Page 11: ...ere is no device that alters the pressure creating a pressure drop in the section that separates the two probes in particular the liquid gas exchanger that is often installed downstream of the evapora...

Page 12: ...and at 4 30 or 7 30 for pipes with a diameter greater than or equal to 22 mm All precautions must be taken to maximise the thermal coupling between the pipe and probe spreading conductive paste on th...

Page 13: ...for below zero showcases or cold rooms where ice frequently forms on the pipe and may damage the socket 4 2 Evaporation pressure transducer The pressure transducer must be installed near the temperatu...

Page 14: ...will signal a probe fault alarm 5 Electrical connections 5 1 Connecting the valve to the driver The following operations are required for the connection of the valve to the driver A Completely insert...

Page 15: ...module connection for closing the valve The EVBAT00 00 battery modules are electronic devices that guarantee temporary power supply to the EVD200 300 400 drivers and the built in driver on the mpxPRO...

Page 16: ...Code 030220215 rel 1 4 25 04 2007 15 Fig 5 g Fig 5 h Fig 5 j installation...

Page 17: ...200 EVD0000300 EVD0000400 430 EVD0000410 440 EVD0000420 450 Software user interface pCO controller via pLAN PC with PlantVisor PC with EVD4_UI pCO or C via tLAN PC with EVD4_UI pCO via pLAN PC with EV...

Page 18: ...Software via terminal Range of network addresses 1 to 200 1 to 200 1 to 200 Control as positioner NO NO NO Battery module NO NO EVBAT00300 Tab 6 b It is obvious that these controllers do not require a...

Page 19: ...Integral action I defined by parameter Ti integration time sec The integral action is related to time and makes the valve move in proportion to how far the superheat temperature is away from the set...

Page 20: ...is defined depending on the compressor and the application The use of the protectors is recommended however this is at the user s discretion 8 3 Recommended parameters Below are the most suitable val...

Page 21: ...d showcases cold rooms with subcriticalCO2 Condenser on R404a for subcritical CO2 2 SHset Superheat set point C 13 7 K prop PID proportional gain 20 15 Ti PID integration time sec 400 150 PID Td PID d...

Page 22: ...ystem SHset Superheat set point C 6 6 K prop PID proportional gain 15 20 Ti PID integration time sec 150 100 PID Td PID derivative time sec 5 15 LowSH LowSH prot threshold C 2 2 LowSH Ti LowSH prot in...

Page 23: ...calibrating a traditional thermostatic valve A low set point ensures better efficiency of the evaporator a lower air or water temperature and the temperature control set point is reached more easily...

Page 24: ...oid creating further disturbance Derivative time from 0 to 10 sec Increasing the derivative time Td improves the reactivity of the valve in particular in perturbed systems reducing the amplitude of sw...

Page 25: ...d 36 ohms Otherwise replace the stator Finally check the electrical connections of the cable to the driver see paragraph 5 1 Valve stuck open Check if the superheating is always low 2 C with the valve...

Page 26: ...ities The Valve opening at start up parameter is set too low Check the calculation in reference to the ratio between the rated cooling capacity of the evaporator and the capacity of the valve if neces...

Page 27: ...cal connections and the operation of the relay Insufficient refrigerant Check that there are no bubbles of air in the liquid indicator upstream of the expansion valve Check that the subcooling is suit...

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Page 29: ...CAREL S p A Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agency Cod 030220811 Rel 1 0 26 04 07...

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