CLIMAVENETA CVM 3000 Technical Manual
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CLIMAVENETA CVM 3000 Technical Manual

CLIMAVENETA CVM 3000 Technical Manual

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Summary
1 CONNECTIONS .............................................................................................................................. 8
......................................................................................................................12
2 VOLTAGE/FREQUENCY INPUT ...............................................................................................13
3 POWER SUPPLY..........................................................................................................................14
4 SERIAL CONNECTIONS ............................................................................................................14
5 DESCRIPTION OF USER INTERFACE....................................................................................17
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5.7.1 Version C (Chiller) ................................................................................................................20
5.7.3 Version FC (Chiller with free-cooling) ..................................................................................21
5.8.1 Version R...............................................................................................................................22
5.8.2 Version N...............................................................................................................................22
5.8.3 Version FC.............................................................................................................................22
5.8.4 Version Q...............................................................................................................................23
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5.10 ALARMS.................................................................................................................................24
5.10.1 Circuit and/or compressor alarms......................................................................................24
5.10.2 General alarms....................................................................................................................25
6 ALARM SIGNALS ........................................................................................................................27
7 REGULATION................................................................................................................................30
7.1.1 Default set point settings........................................................................................................31
7.2.1 Default set point settings........................................................................................................33
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7.3.1 Default set point settings........................................................................................................34
TECHNICAL MANUAL
C 5030 CV/04-99 GB
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CVM 3000
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Summary of Contents for CLIMAVENETA CVM 3000

  • Page 1: Table Of Contents

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Summary 1 CONNECTIONS ..........................8 1.1 T ......................8 EMPERATURE PROBES 1.2 P ........................9 RESSURE PROBES 1.3 L ....................10 OW VOLTAGE DIGITAL INPUTS 1.4 L ......................11 IVE DIGITAL INPUTS 1.5 R ........................12 ELAY OUTPUTS 2 VOLTAGE/FREQUENCY INPUT ....................13...
  • Page 2 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 8 ENABLE PRINTING........................35 8.1 P ......................35 ARAMETER PRINTING 8.2 C ..............35 OMPRESSOR VARIABLES AND STATUS PRINTING 8.3 A ....................36 LARM HIST ORY PRINTING 8.4 L ..........................37 AMP TEST 8.5 P CVM 3000........38 RINTER CHARACTERISTICS FOR CONNECTION TO 9 HOUR BAND PROGRAMMING....................39...
  • Page 3 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Board description The system consists of a main board and keyboard. An expansion board (slave) may also be present, depending on the type of unit. The keyboard may be one of two types: Keyboard for units with 1 to 4 compressors;...
  • Page 4 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 101b CLOCK BOARD 102b TRIMMER Figure 1-1 MAIN BOARD...
  • Page 5 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Figure 1-2 MAIN BOARD DETAIL...
  • Page 6 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Figure 1-3 EXPANSION MODULE Notes for proper installation: Remove the jumpers shown in: Figure 1-2 MAIN BOARD DETAIL; Figure 1-3 EXPANSION MODULE Set all the dip switches to ON; Figure 1-3 EXPANSION MODULE...
  • Page 7 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Meaning of the LED’s: Power supply to the terminals (logic board power supply): terminals 105- COM 2 serial port Rx signal: expansion module<->main board (terminals 101bis/102bis/98) COM 2 serial port Tx signal, alternately for: logic<->main board...

  • Page 8: Connections

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Connections Temperature probes The 16 PTC-type temperature probes have a different meaning depending on the software configuration given to the machine’s configuration parameters. Terminals 1 to 16: temperature probe inlets. Terminals 1-bis to 16-bis: temperature probe references.

  • Page 9: Pressure Probes

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Pressure probes The 16 4-2 mA type pressure transducers have a different meaning depending on the software configuration given to the machine’s configuration parameters. Number 16 pressure probes 4-20 mA 0-30 bar.

  • Page 10: Low Voltage Digital Inputs

    This is very important, because during the pump-down procedure (at compressor stop) the water pump must be on in order to carry it out correctly, otherwise if the flow switch intervenes, this could cause damage to the compressors. In this case Climaveneta will not cover warranty.

  • Page 11: Live Digital Inputs

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Live digital inputs Reference signal for all live inputs, where the neutral conductor must be connected (N). The signal contacts must interrupt the other phase (R) and, if the contact is closed, they must let the phase (R) reach the terminal of the corresponding contact.

  • Page 12: Relay Outputs

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Relay outputs Main board: RELAY N.A. N.C. COM. RL1 Cumulative alarm RL2 Primary circuit antifreeze RL3 Secondary circuit antifreeze RL10 RL11 RL12 RL13 RL14 RL15 RL16 RL17 RL18 RL19 RL20 RL21 RL22...

  • Page 13: Voltage/Frequency Input

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB RELAY N.A. COM. RL44 RL45 RL46 RL47 RL48 RL49 RL50 RL51 RL52 RL53 RL54 RL55 RL56 RL57 RL58 RL59 RL60 RL61 RL62 RL63 RL64 RL65 Voltage/frequency input The main board has an input for monitoring the voltage and frequency value.

  • Page 14: Power Supply

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Power supply Board power supply: Neutral 230 Vac 80VA 94 - 95 12 Vac board power supply TRANSFORMER code: C5110791 182 - 183 Expansion (if installed) 105 - 106 12 Vac. isolated power supply Keyboard power supply: 1 - 2 12 Vac.
  • Page 15 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Note: the expansion dip-switches must all be set to ON (Figure 1-3 EXPANSION MODULE, point N). COM3: half duplex RS485 serial interface for connection to printer, supervision systems, Interface, Master: RS485 +...
  • Page 16 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB COM4: RS485 half duplex serial interface with DTR for remote connection by modem: 96 bis DTR RS485 + RS485 - reference (1) Refer to manual for description and use. (2) Refer to manual for description and use.

  • Page 17: Description Of User Interface

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Software Description of user interface The CVM_3000 keyboards are shown in figures 1, 2, 3, 4, 5, 6 of the enclosures, respectively: Fig. 1: CVM_3000 C Chiller version Fig. 2: CVM_3000 R Chiller with heat recovery version Fig.

  • Page 18: Disabling A Compressor

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB The start-up of the enabled compressor may be delayed due to: the delays set in the parameters the water inlet temperature is under the cold water set point alarm. Disabling a compressor Press the A1 key corresponding to the compressor to be disabled;...

  • Page 19: Reading The Operating Conditions

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Reading the operating conditions Using the B3 key, select the compressor for which you wish to visualise the information (the number will appear on the B2 display and the corresponding LED on the A1 key will simultaneously start flashing);...

  • Page 20: Temperature Display

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Temperature display 5.7.1 Version C (Chiller) Evaporator inlet temperature: press the T4 key. The LED on the key will light up; $ read the value on the C2 display. Evaporator outlet temperature: press the T5 key.

  • Page 21: Version Fc (Chiller With Free-Cooling)

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 5.7.3 FC version (Chiller with free-cooling) Free-cooling coil inlet temperature: press the T17 key. The LED on the key will light up; $ read the value on the C2 display. Free-cooling coil outlet temperature (evaporator inlet): press the T18 key.

  • Page 22: Operating Mode Selection

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Operating mode selection 5.8.1 R version Selection of recovery operating mode To select the recovery operating mode: press the T12 key - The LED on the key will light up To deselect the recovery operating mode: press the T12 key - The LED on the key will go off 5.8.2 N version...

  • Page 23: Version Q

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 5.8.4 Q version Selection of automatic operation With the automatic operating mode the unit satisfies the demands for thermal and/or refrigerating energy coming from the system. To select the automatic operating mode: press the T20 key.

  • Page 24: Alarms

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 5.10 ALARMS NB: if microprocessor’s data logger is enabled when a manual reset alarm appears (except for E003, E004, E020, E211, E203 and E213 which have automatic reset) keyboard response will slow down for about a minute, which is the time required to store in the memory the status of the last 10 minutes of unit operation.

  • Page 25: General Alarms

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 5.10.2 General alarms Display of general alarms press the T7 key – On the C2 display the alarm code will appear. The corresponding C1 LED will light up simultaneously in case of a flow switch or antifreeze alarm.

  • Page 26: Flashing Led's

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 5.11 FLASHING LED’s The flashing of the keyboard LED’s may signal status or alarm conditions: Compressor selected on the B2 display A1 key LED’s A2 LED: DEFROST Defrost time counting phase Stand-by phase at the end of defrosting...

  • Page 27: Alarm Signals

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Alarm signals CODE ALARM Type of reset Possible causes E000 Antifreeze Not correct water flow rate to the evaporator Water pump off Incorrect setting of set point and t Incorrect setting of antifreeze...
  • Page 28 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB E029 Compressor data error The alarm will be reset by entering into the programming mode. In this mode, the compressors are deselected and the operating hours are set to zero. E030 Parameter read error...
  • Page 29 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB E203 Pump down pressure The circuit has not reached the pump-down pressure set E206 Low pressure probe error Pressure transducer malfunction E207 High pressure probe error Pressure transducer malfunction E208 Defrost temperature probe...

  • Page 30: Regulation

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Regulation Chilled water regulation Example of 4-step regulator % load 100% Set point Inlet temperature Set point ( t/4) press the T2 key. The LED of the key will light up; $ the value of the set point will appear on the C2 display;...

  • Page 31: Default Set Point Settings

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 7.1.1 Default set point settings The following table shows, based on the number of steps, the commonly used set point and t values. The theoretical minimum and maximum values indicated in the table for the outlet temperature refer to nominal flow rate operation, and therefore with a 5°...

  • Page 32: Hot Water Regulation

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Hot water regulation Example of 4-step regulator % load 100% Set point minus Inlet Set point ( t)/4 temperature press the T9 key – The LED on the key will light up;...

  • Page 33: Default Set Point Settings

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 7.2.1 Default set point settings The following table shows, based on the number of steps, the commonly used set point and t values. The theoretical minimum and maximum values indicated in the table for the outlet temperature refer to nominal flow rate operation, and therefore with a 5°...

  • Page 34: Free-Cooling Regulation (Only Fc Version)

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Free-cooling regulation (only FC version): The regulation is made using the T15 key. Key T13 allows you to visualise the set point variation compared to the value set with the T2 key (the set point variation is enabled through parameter 97).

  • Page 35: Enable Printing

    NB: to enable printing, the value of parameter 1 must be set to 0. For printing you can use the printer and converter supplied by Climaveneta, or the Service software. Parameter printing...

  • Page 36: Alarm History Printing

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Alarm history printing NASCOSTO 1+ T 6 The record printout has 7 columns and is structured as follows: DESCRIPTION LIMITS Progressive print number 001-200 Hour of event 00-24 Dd/mm/yy of event Alarm code...

  • Page 37: Lamp Test

    Procedure for lighting up all the front panel LED’s and displays in order to verify the proper keyboard and display operation. When the unit is switched on a 10 second lamp test is carried out automatically. (*)For information on these keys, contact the Climaveneta Customer Service Dept.

  • Page 38: Printer Characteristics For Connection To Cvm 3000

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Printer characteristics for connection to CVM 3000 To check the setting of the DPU-414 printer: press the printer’s ON LINE (for at least 2 SECONDS) and POWER ON keys simultaneously. The configuration of the software dip-switches will be printed.

  • Page 39: Hour Band Programming

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Hour band programming Keys T23 - ON-OFF for hour band program execution. It can be used if the controller is not in the hour band configuration or programming phase. NASCOSTO 1 +T23- To access or exit the hour band programming phase.

  • Page 40: Hour Band Execution

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Hour band execution When hour band execution has been enabled the following parameters cannot be modified: operating mode; setting; proportional band. However, compressor selection can temporarily be modified in case of an emergency.

  • Page 41: Upgrading Eprom

    13.press the NASCOSTO 1*+C3 key “arrow up”. The LED on the T7 key will light up. Wait until the LED on the T7 keys goes off; 14.scroll through the parameter list using the C3 keys, visualise parameter 121 on the C2 display; (*) For information on these keys, contact the Climaveneta Customer Service Dept.
  • Page 42 22. exit from the programming menu (see point 16); 23. disconnect the power supply to the unit; 24. reconnect the power supply to the unit; 25. enable the compressors (see chap.8.3). (*)For information on these keys, contact the Climaveneta customer service dept.

  • Page 43: Self-Calibration

    12. disconnect the power supply to the unit; 13. remove the self-calibration kit; 14. re-connect the power supply to the unit; 15. enable the compressors (see chap.8.3). (*) For information on these keys, contact the Climaveneta customer service dept. (**) Refer to manual for description and use.

  • Page 44: Access To The Programming Menu

    B5 display using the B6 keys; 6. to exit from parameter programming, press the NASCOSTO 2* + C3 keys, “arrow up”; 7. enable the compressors (see chap.8.3). (*) For information on these keys, contact the Climaveneta customer service dept.

  • Page 45: Parameters

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 13 PARAMETERS = USER PARAMETERS M = MACHINE PARAMETERS CI = CIRCUIT PARAMETERS CO = COMPRESSOR PARAMETERS TYPE MACHINE PARAMETERS RANGE DEFAUL LOW PRESSURE ALARM DELAY 120 sec ALLOWS YOU TO SELECT THE DEVICE TO BE...
  • Page 46 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB CONFIGURATION OF CIRCUIT N° 1 1-12 Tab. 13-1 CONFIGURATION OF CIRCUIT N° 2 0-12 Tab. 13-1 CONFIGURATION OF CIRCUIT N° 3 0-12 Tab. 13-1 CONFIGURATION OF CIRCUIT N° 4 0-12 Tab. 13-1 CONFIGURATION OF CIRCUIT N°...
  • Page 47 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB HIGH PRESSSURE ALARM SET Tab. 13-4 10.0 28.0 HIGH PRESSSURE ALARM DIFFERENTIAL Tab. 13-4 10.0 SAFETY VALVE MAXIMUM SAFETY HIGH PRESSURE CALIBRATION PRESSURE SWITCH SET ALARM SET RESET PAR. 31 PAR. 32 23.3...
  • Page 48 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB PUMP-DOWN PRESSURE SET Tab. 13-6 -0.5 PUMP-DOWN PRESSURE DIFFERENTIAL Tab. 13-6 WORK CONDITIONS PARAMETER 48 PARAMETER 49 STANDARD FOR WATER TEMPERATURES BELOW 0°C Table 13-6 PUMP DOWN PRESSURE SET PRESSURE SET FOR START STAND-BY TIME 3.6 Bar...
  • Page 49 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB DELAY TIME BEFORE PASSING FROM HEAT 120 sec PUMP TO ANOTHER STATUS (FOR WRQ/WRAQ UNITS ONLY) STAND-BY TIME BEFORE VALVE RE- 120 sec CONFIGURATION (FOR MULTIPURPOSE UNITS ONLY) OPERATING HOURS COMPRESSOR N° 1 ----------- hrs OPERATING HOURS COMPRESSOR N°...
  • Page 50 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB REFERENCE PROBE FOR INTEGRAL 0=SONDA INGRESSO flag REGULATION ON PRIMARY CIRCUIT 1=SONDA USCITA REFERENCE PROBE FOR INTEGRAL 0= INLET PROBE flag REGULATION ON SECONDARY CIRCUIT 1= OUTLET PROBE MODE IN WHICH THE THERMOREGULATOR 0= COMPLETE ACTIVATES UNIT’S CAPACITY STEPS...
  • Page 51 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB TYPE OF COMPRESSOR STARTUP: 0=DIRECT flag 1=PART-WINDING TOTAL NUMBER OF COMPRESSOR UNITS NUMBER OF CAPACITY STEPS PER 0-3 num COMPRESSOR NUMBER OF SOLENOID VALVES PER CIRCUIT NUMBER OF VENTILATION CONTROL STEPS PER CIRCUIT...
  • Page 52 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB HYSTERESIS TO ENABLE PROPORTIONAL °C REGULATION AT PRIMARY CIRCUIT OUTLET HYSTERESIS TO ENABLE PROPORTIONAL °C REGULATION AT SECONDARY CIRCUIT OUTLET FAN ACTIVATION HYSTERESIS IN FREE- 1 °C COOLING MODE OFFSET FOR FAN ACTIVATION IN FREE- 2 °C...
  • Page 53 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB relay status S0 (FOR WRQ/WRAQ UNITS ONLY) 000 hex relay time S0 (FOR WRQ/WRAQ UNITS ONLY) 0 sec relay status S1 (FOR WRQ/WRAQ UNITS ONLY) 022 hex relay time S1 (FOR WRQ/WRAQ UNITS ONLY)
  • Page 54 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB HOT WATER SET HIGHER LIMIT 50 °C HOT WATER SET LOWER LIMIT 30 °C COLD WATER SET HIGHER LIMIT 18 °C COLD WATER SET LOWER LIMIT 5 °C 5 °C HOT WATER t HIGHER LIMIT 1 °C...
  • Page 55 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB MAXIMUM OPERATING TIME ALLOWED WITH CAPACITY STEPS ON FORCING TIME IN “FULL” OPERATION RESIDUAL TIME ALLOWED WITH CAPACITY -------- min STEPS ON; COMPRESSOR 1 RESIDUAL TIME IN FULL OPERATION OF --------- sec...

  • Page 56: Parameter List For Units With Screw Compressors (Parameter 17=2)

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 13.1 PARAMETER LIST FOR UNITS WITH SCREW COMPRESSORS (PARAMETER 17=2) The following tables show the parameters which have a different meaning when a unit with screw compressors is configured: UNIT WITH SCREW...

  • Page 57: Enclosures

    TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB 14 Enclosures Figure 1 Figure 2 Figure 3...
  • Page 58 TECHNICAL MANUAL CVM 3000 C 5030 CV/04-99 GB Figure 4 Figure 5 Figure 6...

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