CLIMAVENETA CVM 3000 Page 40 Technical Manual Download | Manualshive

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TECHNICAL MANUAL

CVM 3000

C 5030 CV/04-99 GB

40

9.4 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.

When hour band execution is disabled, regulation continues with the latest settings
utilised and manual modification is possible.

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Summary of Contents for CVM 3000

Page 1: ...NG CONDITIONS 19 5 7 TEMPERATURE DISPLAY 20 5 7 1 Version C Chiller 20 5 7 2 Versions R N Q Chiller with recovery Heat pumps Multipurpose units 20 5 7 3 Version FC Chiller with free cooling 21 5 8 OPE...

Page 2: ...LAMP TEST 37 8 5 PRINTER CHARACTERISTICS FOR CONNECTION TO CVM 3000 38 9 HOUR BAND PROGRAMMING 39 9 1 KEYS 39 9 2 LED S 39 9 3 THE DISPLAY DURING PROGRAMMING 39 9 4 HOUR BAND EXECUTION 40 10 UPGRADIN...

Page 3: ...main board communicates with the keyboard through a serial current loop and with the expansion board through a RS485 serial port A board logic board with the microprocessor used to control all the ele...

Page 4: ...9b 10b 11b 12b 13b 14b 15b 16b 17b 18b 19b 20b 21b 22b 23b 24b 25b 26b 27b 28b 29b 30b 31b 32b 33 34 35 36 37 38 105 106 107 108 109 110 111 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 2...

Page 5: ...TECHNICAL MANUAL CVM 3000 C 5030 CV 04 99 GB 5 Figure 1 2 MAIN BOARD DETAIL...

Page 6: ...e 1 3 EXPANSION MODULE 2 Set all the dip switches to ON Figure 1 3 EXPANSION MODULE 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 177 176 175 174 130 131 132 133 134 135 136 137 138 139...

Page 7: ...signal terminals 98 99 100 E COM 3 serial port DTR signal F COM 3 serial port Tx signal terminals 98 99 100 G Supply to terminals main board power supply 94 95 H COM 4 serial port Rx signal terminals...

Page 8: ...Temperature C 10 0 10 20 25 Resistance 740 807 877 951 990 Temperature C 30 40 50 60 70 Resistance 1029 1111 1196 1286 1378 Temperature C 80 90 100 110 120 Resistance 1475 1575 1679 1796 1896 Tempera...

Page 9: ...5 Current mA 6 14 6 41 6 68 6 94 7 21 7 48 7 75 8 01 Pressure Bar 8 0 8 5 9 0 9 5 10 0 10 5 11 0 11 5 Current mA 8 28 8 55 8 82 9 08 9 35 9 62 9 89 10 15 Pressure Bar 12 0 12 5 13 0 13 5 14 0 14 5 15...

Page 10: ...contact unit on Using the REMOTE ON OFF control For proper use of the unit s remote on off control the following delay time must be set between the unit s on off control and the water pump control Pum...

Page 11: ...each the terminal of the corresponding contact 40 41 42 43 44 45 46 47 Compressor maximum safety high pressure switch signal input 48 49 50 51 52 53 54 55 Compressor thermal overload protection signal...

Page 12: ...4 RL5 88 87 89 RL6 RL7 85 84 86 RL8 RL9 82 81 83 RL10 RL11 79 78 80 RL12 RL13 76 75 77 RL14 RL15 73 72 74 RL16 RL17 70 69 71 RL18 RL19 67 66 68 RL20 RL21 RL22 RL23 RL24 RL25 64 63 62 61 60 59 65 58 Ex...

Page 13: ...board has an input for monitoring the voltage and frequency value 103 104 Input for voltage to be monitored range 0 260 Vac Verification of the voltage value read by the board read the voltage to term...

Page 14: ...lconnections COM1 0 20mA half duplex serial interface for connection with the display board MAIN BOARD KEYBOARD 102 Input 5 101 Output 6 COM2 0 20mA half duplex serial interface for connection between...

Page 15: ...r distances The maximum distance of the cable that connects the CVM Master the Interface the supervision software to the farthest unit must not exceed 1000 meters As shown in the figure the single shi...

Page 16: ...COM4 RS485 half duplex serial interface with DTR for remote connection by modem 96 bis DTR 96 RS485 97 RS485 98 reference 1 Refer to manual for description and use 2 Refer to manual for description an...

Page 17: ...POWER LED is on it means that the electronic control is supplied with power Before you switch on the unit make sure that it has been supplied with power for at least 8 hours in order to enable the hea...

Page 18: ...A1 key corresponding to the compressor to be disabled The LED on the key will go off Use this function only for emergency stops since the pump down procedure is not carried out and the compressor may...

Page 19: ...other values may be visualised on the B5 display selected through the B6 arrow down key The values that may be visualised are low pressure default compressor differential oil pressure discharge tempe...

Page 20: ...ller with recovery Heat Pumps Multipurpose Units Evaporator inlet temperature press the T4 key CHILLED WATER The LED on the key will light up read the value on the C2 display Evaporator outlet tempera...

Page 21: ...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 The LED on the key will light up read the value on the C2...

Page 22: ...8 2 N version Selection of chiller operating mode To select the chiller operating mode press the T11 key The LED on the key will light up Selection of heat pump operating mode To select the heat pump...

Page 23: ...hen the automatic operating mode has been selected both the cold and hot circuit pumps must be in operation Selection of chiller operating mode press the T21 key The LED on the key will light up Selec...

Page 24: ...rcuit compressor and the general alarms 5 10 1 Circuit and or compressor alarms Display of circuit and compressor alarms The circuit alarms are signalled by the lighting up of the FAULT A2 LED corresp...

Page 25: ...2 display the alarm code will appear The corresponding C1 LED will light up simultaneously in case of a flow switch or antifreeze alarm In case of a voltage alarm the POWER LED will flash Alarm reset...

Page 26: ...D lp The maximum number of low pressure automatic reset alarms has been reached and therefore the alarm must be reset manually B1 LED hp End of high pressure alarm manual reset is possible B1 LED op E...

Page 27: ...s in water circuit Flow switch malfunction E004 Hot water circuit flow switch A Not correct water flow rate to the condenser Air bubbles in water circuit Flow switch malfunction E005 Low inlet tempera...

Page 28: ...ith the keyboard the COLL message appears on the C2 display and the alarm code is recorded in the alarm history E037 Expansion board disconnected A No serial communication with the expansion board E03...

Page 29: ...temperature probe placed near coils fins E211 Maximum defrost time Only on alarm list Event recorded only in alarm history E213 Low pressure A M Not correct water flow rate to the evaporator Dirty eva...

Page 30: ...set point using the C3 keys arrow up to raise arrow down to lower press the T2 key to confirm The LED on the key will go off press the T3 key The LED on the key will light up the value of the t settin...

Page 31: ...tical minimum and maximum values indicated in the table for the outlet temperature refer to nominal flow rate operation and therefore with a 5 C evaporator thermal head No of steps Set point C t C The...

Page 32: ...C3 keys arrow up to increase arrow down to decrease press the T9 key to confirm The LED on the key will go off press the T10 key The LED on the key will light up the value of the t setting will appear...

Page 33: ...l minimum and maximum values indicated in the table for the outlet temperature refer to nominal flow rate operation and therefore with a 5 C evaporator thermal head No of steps Set point C t C Theoret...

Page 34: ...AND FOR FAN REGULATION IN FREE COOLING OPERATING MODE 0 500 2 C 85 PRIMARY CIRCUIT INTEGRAL TIME 0 600 0 sec 87 SECONDARY CIRCUIT INTEGRAL TIME 0 600 0 sec 98 MINIMUM DIFFERENCE BETWEEN INLET WATER TE...

Page 35: ...rinting NASCOSTO 1 T 7 Each line of print has the following structure 1 parameter number 2 parameter value 3 unit of measurement For the printing of pressure values the unit of measurement and the pos...

Page 36: ...MAL PROTECTION 26 13 07 10 97 01 4 103 THERMAL PROTECTION 25 13 07 10 97 01 2 103 THERMAL PROTECTION 24 13 07 10 97 01 1 103 THERMAL PROTECTION 23 13 07 10 97 01 000 ANTIFREEZE 22 10 07 10 97 02 402 T...

Page 37: ...ocedure 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 automatica...

Page 38: ...p SW 1 1 OFF Input Serial 2 ON Printing Speed High 3 OFF Auto Loading OFF 4 OFF Auto LF OFF 5 ON Setting Command Enable 6 OFF Printing 7 ON Density 8 ON 100 Dip SW 2 1 OFF Printing Columns 80 2 ON Use...

Page 39: ...en the hour band operating mode is active it flashes during programming 9 3 The display during programming B2 day B4 band B5 starting time C2 value selected based on the set keys and proportional band...

Page 40: ...n enabled the following parameters cannot be modified operating mode setting proportional band However compressor selection can temporarily be modified in case of an emergency When hour band execution...

Page 41: ...7 install the self calibration kit in the appropriate board terminals 8 reconnect the power supply 9 to access the programming menu press the NASCOSTO 2 C3 keys arrow up A dot should start flashing on...

Page 42: ...the power supply to the unit 18 remove the self calibration kit 19 reconnect the power supply to the unit 20 enter the programming menu see point 9 21 re program the unit check the value of the parame...

Page 43: ...es off 9 scroll through the parameter list using the C3 keys and visualise parameter 121 on the C2 display 10 repeat step 8 so that the value of parameters 120 121 152 153 on the B4 display is respect...

Page 44: ...w up 6 enable the compressors see chap 8 3 To access the FACTORY menu 1 disable the compressors see chap 8 4 2 the displays must be off 3 press the NASCOSTO 2 C3 keys arrow up A dot should start flash...

Page 45: ...ALARM DELAY 0 10 5 sec 8 M ANTIFREEZE ALARM DIFFERENTIAL 0 20 4 C 9 CO MINIMUM TIME BETWEEN COMPRESSOR SHUTDOWN AND STARTUP 0 500 60 sec 10 M MINIMUM STARTUP DELAY TIME BETWEEN COMPRESSORS ANTIPEAK 0...

Page 46: ...1 2 6 1 3 7 2 1 8 2 2 9 2 3 10 3 1 11 3 2 12 3 3 Table 13 1 CIRCUIT CONFIGURATION 28 CI LOW PRESSURE ALARM SET 1 0 7 0 Tab 13 2 29 CI LOW PRESSURE ALARM DIFFERENTIAL 0 0 10 0 Tab 13 2 R22 R407C Bar R1...

Page 47: ...M HOUR BAND ENABLE 0 NOT ENABLED 1 ENABLED 0 1 Flag 38 C MAXIMUM NUMBER OF LOW PRESSURE ALARMS PER HOUR 0 30 3 Num 39 M COMPRESSOR STARTUP SHUTDOWN MODE BY THE THERMOREGULATOR MUST BE SET TO 0 FOR UNI...

Page 48: ...RECOVERY 10 0 28 0 23 5 Bar 56 CI PRESSURE DIFFERENTIAL FOR END OF FORCING IN CHILLER MODE UNITS WITH RECOVERY 0 10 5 0 Bar 57 CI MINIMUM TIME OF CHILLER MODE OPERATION AFTER FORCING IN UNITS WITH RE...

Page 49: ...WITH OPEN CONTACT 1 flag 78 M POLARITY OF WATER FLOW SWITCH INPUT ON SECONDARY CIRCUIT 0 FLOW ALARM WITH CLOSE CONTACT 1 FLOW ALARM WITH OPEN CONTACT 0 flag 79 M PRIMARY CIRCUIT FLOW SWITCH ALARM DELA...

Page 50: ...TO THE NEXT ONE 1 DISTRIBUTION OF STEPS BETWEEN CIRCUITS 0 92 M MAINS FREQUENCY VISUALISATION Hz 93 M MAINS VOLTAGE VISUALISATION V 94 C LOW PRESSURE ALARM DELAY IN DEFROST MODE 0 500 300 sec 95 M SE...

Page 51: ...VERY RELAYS PER CIRCUIT 0 1 0 1 num 116 C ENABLING OF PUMP DOWN DURING UNIT S START WORKS ONLY IF PUMP DOWN UNIT S STOP IS ENABLED IT MUST BE 0 FOR UNITS WITH SCREW COMPRESSORS 0 NOT ENABLED 1 ENABLED...

Page 52: ...LP pressure probe offset CIRCUIT N 2 10 10 0 0 Bar 158 M SP7 LP pressure probe offset CIRCUIT N 3 10 10 0 0 Bar 159 M SP8 LP pressure probe offset CIRCUIT N 4 10 10 0 0 Bar 160 M SP9 0P pressure probe...

Page 53: ...me S7 FOR WRQ WRAQ UNITS ONLY 0 100 0 sec 206 M relay status S8 FOR WRQ WRAQ UNITS ONLY 000 3FF 009 hex 207 M relay time S8 FOR WRQ WRAQ UNITS ONLY 0 100 0 sec 210 M first step HP set 0 30 14 Bar 211...

Page 54: ...ME TO ACTIVATION OF RELAY 0 120 30 sec 253 M SUBCOOLING SET POINT 0 100 5 0 C 254 M SUBCOOLING PROPORTIONAL BAND 0 10 1 0 C 255 M TYPE OF REFRIGERANT GAS USED 1 3 Tab 13 8 PARAMETER VALUE DESCRIPTION...

Page 55: ...IN FULL OPERATION OF COMPRESSOR 3 0 300 sec 288 CO RESIDUAL TIME ALLOWED WITH CAPACITY STEPS ON COMPRESSOR 4 0 300 min 289 CO RESIDUAL TIME IN FULL OPERATION OF COMPRESSOR 4 0 300 sec 290 CO RESIDUAL...

Page 56: ...N 4 10 10 0 0 Bar 156 M SP5 HP pressure probe offset CIRCUIT N 5 10 10 0 0 Bar 157 M SP6 HP pressure probe offset CIRCUIT N 6 10 10 0 0 Bar 158 M SP7 HP pressure probe offset CIRCUIT N 7 10 10 0 0 Ba...

Page 57: ...TECHNICAL MANUAL CVM 3000 C 5030 CV 04 99 GB 57 14 Enclosures Figure 1 Figure 2 Figure 3...

Page 58: ...TECHNICAL MANUAL CVM 3000 C 5030 CV 04 99 GB 58 Figure 4 Figure 5 Figure 6...

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