PROGRAMMABLE CONTROLLERS FOR SINGLE OR TWIN-CIRCUIT CHILLERS - HEAT PUMPS WITH UP TO 6 COMPRESSORS APPLICATION MANUAL CODE 144CHILNUE03
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Important Notice This Instruction Manual should be read carefully before installation and before use, and all warnings relating to installation and electrical connections should be observed; the Manual should then be kept for future reference. All devices must be disposed of in accordance with local regulations governing the disposal of electrical and electronic devices. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Table of Contents 1 2 3 4 5 6 General Information .................................................................................................................................................. 6 1.1 Description ...................................................................................................................................................... 6 Applications ....................................................................
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.5 Single-circuit motocondensing water-based units................................................................................ 87 6.2.6 Twin-circuit air-to-air units.................................................................................................................. 88 6.2.7 Twin-circuit air-to-water units ............................................................................................................. 90 6.2.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.17.8 Low-pressure partialisation at low temperatures (heat pump) ........................................................... 129 6.17.9 Operating limit management (heat pump).......................................................................................... 131 6.17.10 Function for chilling/heating on demand....................................................................................... 131 6.17.11 Manual operation...................
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1 General Information 1.1 Description C-PRO NANO CHIL and C-PRO MICRO CHIL are two new families of innovative programmable controllers, which are both flexible and modular, as well as being capable satisfying all application, technical and cost requirements of modern single and twin-circuit chillers, with capacity from 4 to 450 KW and up to 6 compressors.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL C-PRO NANO CHIL C-PRO MICRO CHIL Built-in version C-PRO MICRO CHIL Blind version Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2 Applications Management of the following unit types is possible: 1) Air-to-air single-circuit chiller units and air-to-air single-circuit chiller units + heat pump, using C-PRO NANO CHIL (or C-PRO MICRO CHIL). Total number of analogue inputs: 4. Total number of digital inputs: 5 (*). Total number of analogue outputs: 1 + 2 optional. Total number of digital outputs: 6.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 7) Air-to-water twin-circuit chiller units and air-to-water twin-circuit chiller units + heat pump, using C-PRO NANO CHIL (or C-PRO MICRO CHIL) and C-PRO EXP MICRO. Total number of analogue inputs: 8. Total number of digital inputs: 10 (*). Total number of analogue outputs: 2 + 2 optional. Total number of digital outputs: 12.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.1 Air-to-air single-circuit chiller units and air-to-air singlecircuit chiller units + heat pump 2.1.1 Air-to-air single-circuit chiller units Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.1.2 Air-to-air single-circuit chiller units + heat pump Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.2 Air-to-water single-circuit chiller units and air-to-water single-circuit chiller units + heat pump 2.2.1 Air-to-water single-circuit chiller units Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.2.2 Air-to-water single-circuit chiller units + heat pump Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.3 Water-to-water single-circuit chiller units and water-towater single-circuit chiller units + heat pump 2.3.1 Water-to-water single-circuit chiller units Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.3.2 Water-to-water single-circuit chiller units + heat pump Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.4 Single-circuit motocondensing air-based units and singlecircuit motocondensing air-based units with cycle inversion 2.4.1 Single-circuit motocondensing air-based units Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.4.2 Single-circuit motocondensing air-based units with cycle inversion Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.5 Single-circuit motocondensing water-based units and singlecircuit motocondensing water-based units with cycle inversion 2.5.1 Single-circuit motocondensing water-based units Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.5.2 Single-circuit motocondensing water-based units with cycle inversion Using C-PRO NANO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.6 Air-to-air twin-circuit chiller units and air-to-air twin-circuit chiller units + heat pump 2.6.1 Air-to-air twin-circuit chiller units Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.6.2 Air-to-air twin-circuit chiller units + heat pump Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.7 Air-to-water twin-circuit chiller units and air-to-water twincircuit chiller units + heat pump 2.7.1 Air-to-water twin-circuit chiller units Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.7.2 Air-to-water twin-circuit chiller units + heat pump Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.8 Water-to-water twin-circuit chiller units and water-to-water twin-circuit chiller units + heat pump 2.8.1 Water-to-water twin-circuit chiller units Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.8.2 Water-to-water twin-circuit chiller units + heat pump Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.9 Twin-circuit motocondensing air-based units and twincircuit motocondensing air-based units with cycle inversion 2.9.1 Twin-circuit motocondensing air-based units Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.9.2 Twin-circuit motocondensing air-based units with cycle inversion Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.10 Twin-circuit motocondensing water-based units and twincircuit motocondensing water-based units with cycle inversion 2.10.1 Twin-circuit motocondensing water-based units Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.10.2 Twin-circuit motocondensing water-based units with cycle inversion Using C-PRO NANO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO NANO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Using C-PRO MICRO CHIL and C-PRO EXP MICRO. The power supplies of C-PRO MICRO CHIL and C-PRO EXP MICRO must be galvanically isolated from each other. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.11 Connection Layout of C-PRO MICRO CHIL and C-PRO EXP MICRO 2.11.1 Connection layout of C-PRO NANO CHIL and C-PRO MICRO CHIL The connection layout of C-PRO NANO CHIL and C-PRO MICRO CHIL is shown below, with related tables explaining the meaning of inputs and outputs.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Connector 1: Connection for relay outputs C-PRO NANO CHIL Conn.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Connector 4: Connector for low-voltage signals Conn.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2.11.2 Connection layout of C-PRO EXP MICRO The connection layout of C-PRO EXP MICRO is shown below, with related tables explaining the meaning of inputs and outputs. connector # 1 K7 K8 7 K9 8 9 11 12 K10 max. 3 A 6 max. 4 A 5 max. 3 A 4 max. 3 A 3 max.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL C2-9 C2-10 12 V AC (power supply) 12 V DC C2-11 C2-12 C2-13 C2-14 C2-15 C2-16 AO4 DI11 DI10 DI9 DI8 DI7 Instrument power supply (12 V AC/DC) Power supply for current transducers and EVCO’s EVDFAN1 phase-cut module (12 V DC) Output for EVCO’s EVDFAN1 phase-cut module Digital input # 11 Digital input # 10 Digital input # 9 Digital input # 8 Digital input # 7 To enable the use of the EVDFAN1 phase-cut module, the expansion must be powered by an al
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 3 Component Network and Accessories 3.1 Example of C-PRO NANO CHIL Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 3.2 Example of C-PRO MICRO CHIL (built-in version) Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 3.3 Example of C-PRO MICRO CHIL (blind version) Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 4 USER INTERFACE 4.1 Displays and Keyboards For the application, two types of interface are provided: ⋅ a built-in 4-display interface with 7 segments; ⋅ a remote 4-display interface with 7 segments. Both interfaces feature 4 keys for navigation/page editing, and differ in their display mode of certain associated statuses, i.e. via icons (built-in version) or LED (remote version).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL The keyboard features 4 page navigation and value editing keys, which have the following functions: - UP and DOWN: in editing, it modifies parameters; otherwise, it moves the cursor. If pressed down and held for about 2 seconds during the display of the main page, the UP key enables the display of the other probes, according to the following table.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL - Maintenance icon: This identifies a maintenance request. If it is lit, at least one compressor or fan is operating manually; if it flashes, at least one compressor or fan has exceeded the number of operating hours; otherwise, it remains off. - Alarm icon: This identifies the presence of any alarms. If it is lit, alarms are present, otherwise it remains off. If flashing, it indicates the presence of a new alarm that has yet to be displayed.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Remote interface V LEDi Panel-mounted version V WALL Wall-mounted version The keyboard features 4 page-navigation and value-editing keys, which have the following functions: - UP and DOWN: During editing, it modifies parameters; otherwise, it moves the cursor. If pressed down and held for about 2 seconds during the display of the main page, the UP key enables the display of the other probes.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL flashes rapidly, at least one compressor is operating in manual mode; otherwise, it remains off. - L5 = Pump LED: This identifies the status of the pump or of the delivery fan. If it is lit, at least one pump is on; if it flashes rapidly, this indicates that a timing is enabled; if it flashes slowly, this indicates that at least in one of the two pumps (or delivery fan) a thermal protection has been triggered.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL ⋅ unlocking of its sublevels. All level passwords can be modified from the same level or from higher levels. For example, from the constructor level it will be possible to modify all passwords of underlying levels, by using the appropriate page. The range of values that can be set for a password is -999 / 9999. After 4 minutes have elapsed without any key being pressed, the password expires and it is necessary to reset it.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL StAt Menu Selecting the StAt item from the general menu, the user enters the display of some of the plant’s main statuses: Unit: indicates the machine’s current operating status (OFF, ChIL, pdC, dEFr, dRIp, FC). tdF1: accumulated waiting time for a defrosting cycle of circuit # 1. dFr1: duration time of defrosting of circuit # 1. tdF2: accumulated waiting time for a defrosting cycle of circuit # 2. dFr2: duration time of defrosting of circuit # 2.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL In the OPERATION menu, it is possible to view/enable the features relating to the operation of compressors, fans and pumps. Some examples of these are the hours of operation, the enabling of the corresponding alarm and the threshold of maximum allowable hours. In the MANUAL menu, it is possible to set to manual/automatic operation compressors and fans, whose outputs can be forced, in order to test their functionality.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL In the ANTI-FROST menu, it is possible to set the parameters connected with the thermal regulation of resistors and control of the anti-frost alarm. In the FREE-COOLING menu, it is possible to set the parameters connected with the enabling, operation and activation of the free-cooling function.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Project and Firmware Versions Press simultaneously the UP+DOWN keys for about 2 seconds, then press the ENTER key on the InFo label. Information on the project and controller firmware versions is displayed sequentially, namely: Project Number <-> Project Version <-> Project Revision <-> Firmware Number <-> Firmware Version <-> Firmware Revision <-> To scroll this information, use the UP and DOWN keys.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 5 Parameter List All parameters managed by the application are listed below. Each parameter is accompanied by a brief description, the range of its admissible values, units of measure, the assigned default value and the menu containing the parameter.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 5.1 List of Configuration Parameters Code Parameter Description Default Min. Max. M.U. Menu Notes UT Modifiable only if the units is a chiller + heat pump: (PG00=2,4,6,8,1 0 e PG08=0) USER PARAMETERS ModE SPC1 SSC1 SPH1 SSH1 PSd1 PM00 It sets the operating mode: 0: CooL, (Chiller/summer) 1: hEAt (Heat pump/winter) 0 It sets the value of the summer set point 8.5 PC21 (chiller) It sets the offset value for the utilisation of the 0.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PM13 PM14 PM15 PM16 PM21 PM22 PM23 PM24 PM25 PM26 PM51 PM52 PM61 PM62 PM71 PM72 PM81 PM82 PM83 PM84 PM85 PM86 PM87 PM88 PSd2 PC01 PC02 PC04 PC05 PC06 0: Auto – normal operation 1: Manu – manual operation One for each compressor. During manual operation, it forces the startup/shutdown of the compressor. 0: switches the compressor OFF 1: switches the compressor ON One for each compressor.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PC07 PC08 PC09 PC10 PC11 PC12 PC14 PC15 PC16 PC17 PC18 PC21 PC22 PC23 PC24 PC30 PC31 PC32 PC35 PC36 PC37 PC41 PC42 PC43 PC45 PC46 PC47 PC48 PC49 PC50 start-ups of the same compressor. Min. time which must elapse between startups of two different compressors. Min. time which must elapse between shutdowns of two different compressors. Max. number of start-ups for every hour (only for adaptive regulation).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PC54 PC61 PC62 PC64 PC65 PC66 PC67 PC68 PC69 PC70 PC71 PC72 PC80 PC81 PC82 PC83 PC84 PC85 PF02 PF03 PF07 PF08 PF10 PF11 PF12 PF13 PF14 PF15 PF21 PF22 PF23 PF24 PF25 pressure-switch control Outlet water high-temperature threshold for pressure-switch control Summer commutation set point Winter commutation set point Max.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PF26 PF27 PF31 PF32 PF33 PF34 PF36 PF37 PF38 PF39 PF41 PF42 PF43 PF45 PF46 PF47 Pd01 Pd02 Pd03 Pd05 Pd06 Pd07 Pd11 Pd12 Pd20 Pd21 Pd22 Pd23 PP01 PP02 PP03 PP04 PP05 winter operation (heat pump, inverter) Min. value for condenser forcing (inverter) 0.0 0.0 Speed-up time at fan start-up (inverter) 4 0 Lower limit for condensing linear regulation 30.0 0 (inverter) Upper limit for condensing linear regulation 100.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PP07 PP08 PP09 PP10 PP11 PP12 PP13 Pr01 Pr02 Pr03 Pr04 Pr11 Pr12 PS01 PS02 PS03 PS04 PS11 PS13 PS14 PS15 PS16 PS21 PA01 PA02 PA03 PA04 PA05 PA06 PA07 PA08 PA09 PA10 PA11 PA12 PA13 PA14 Shutdown of pump / recirculating fan during No (1) No (0) Yes (1) defrosting Difference in operating hours between the two 4 1 240 pumps, requiring their being swapped.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PA16 PA17 PA18 PA19 PA20 PA21 PA22 PA25 PA26 PA27 PA40 PA41 PA42 PA60 PA62 PA80 PA81 PA82 PA99 PH01 PH02 PH04 PH05 PH06 PH07 PH08 Enabling of low-pressure control at start-up Yes (1) No (0) and at low temperatures Low-pressure alarm threshold at start-up and 1.0 0.1 at low temperatures Low-pressure alarm reset differential at start0.5 0.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PH09 PH10 PH11 PH12 PH13 PH14 PH15 PH16 PH17 PH18 PH19 PH20 PH21 PH22 PH23 PH24 PH25 PH26 PH27 PH29 PH31 PH32 It enables the start-up/shutdown of the machine by supervisor. It enables the change of summer/winter operating mode via supervisor.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PH33 PH43 PH44 PH45 PH48 PH50 PH51 PH52 PH53 PH61 PH62 PH63 PH64 PSd3 0: ° Celsius 1: ° Fahrenheit It sets the pressure measurement unit: 0: Bar 1: psi It sets the type of universal analogue input AI3 for the condensing probe. 2: NTC 3: 0-20 mA 4: 4-20 mA It sets the type of universal analogue input AI4.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PG00 PG01 PG02 PG03 PG08 PG09 PG11 PG13 HA01 HA02 HA03 HA04 It sets the unit type: 1: Air-to-air chiller 2: Air-to-air chiller + heat pump 3: Air-to-water chiller 4: Air-to-water chiller + heat pump 5: Air-to-water chiller 3 1 10 6: Air-to-water chiller + heat pump 7: Air-based motocondensing 8: Air-based motocondensing with inverter 9: Water-based motocondensing 10: Water-based motocondensing with inverter Number of circuits 2 1 2 It enables
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL compressor # 2. has been enabled) (12 if expansion has been enabled) (12 if expansion has been enabled) (12 if expansion has been enabled) (12 if expansion has been enabled) Outputs 2 and 3 require the AO expansion. (4 if expansion has been enabled) Outputs 2 and 3 require the AO expansion. (4 if expansion has been enabled) Outputs 2 and 3 require the AO expansion.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Hd13 Hd14 Hd15 Hd16 Hd20 Hd21 Hd22 Hd23 the second step of compressor regulation. (In motocondensing units, compressor activation is via DI.) It sets the position of the digital input linked to the third step of compressor regulation. (In motocondensing units, compressor activation is via DI.) It sets the position of the digital input linked to the fourth step of compressor regulation.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PSd4 Constructor level password 0 -999 9999 CO-Pa Note: Once the machine parameters have been configured, and every time the configuration parameters are modified, it is advisable to shut down the machine and restart the plant, to enable the card to reconfigure itself correctly. Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6 REGULATIONS 6.1 Machine Status Several procedures exist for switching the unit ON and OFF: 1) Using the dedicated ON/OFF key (this function is enabled via parameter PH05). Switching ON – Press the dedicated key for about 2 seconds: if all other enabled functions are present, the machine switches itself ON. Switching OFF – Press the dedicated key for about 2 seconds: the machine switches itself OFF.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2 Unit Type With the machine in OFF status, using the PG00 parameter from the CONSTRUCTOR menu (CoSt -> ConF), it is possible to select the unit type to be used, and, via the PG01 parameter, it is then possible to set up the number of circuits. Based on parameter values, several defaults are loaded for the positions of inputs and outputs.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.2 Single-circuit air-to-water units PG01 = 1 Single-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.3 Single-circuit water-to-water units PG01 = 1 Single-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.4 Single-circuit motocondensing air-based units PG01 = 1 Single-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.5 Single-circuit motocondensing water-based units PG01 = 1 Single-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL TWIN-CIRCUIT VERSIONS (PG01=2) 6.2.6 Twin-circuit air-to-air units PG01 = 2 Twin-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) AI 5 (NTC) AI 6 (NTC) AI 7 (4..20 mA) AI 8 (4..20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*¹) DI 7 DI 8 DI 9 DI 10 DI 11 DI 12 (*²) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7 DO 8 DO 9 DO 10 DO 11 DO 12 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL By selecting these units, default values for parameters PC11=1, PH44=1 and PH45=1 are automatically set, while a “0” value is set for all input/output position parameters not specified in this configuration. (*¹) Digital input derived from analogue input (parameter PH44). (*²) Digital input derived from analogue input (parameter PH45). Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.7 Twin-circuit air-to-water units PG01 = 2 Twin-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) AI 5 (NTC) AI 6 (NTC) AI 7 (4..20 mA) AI 8 (4..20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*¹) DI 7 DI 8 DI 9 DI 10 DI 11 DI 12 (*²) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7 DO 8 DO 9 DO 10 DO 11 DO 12 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL By selecting these units, default values for parameters PC11=1, PH44=1 and PH45=1 are automatically set, while a “0” value is set for all input/output position parameters not specified in this configuration. (*¹) Digital input derived from analogue input (parameter PH44). (*²) Digital input derived from analogue input (parameter PH45). Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.8 Twin-circuit water-to-water units PG01 = 2 Twin-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) AI 5 (NTC) AI 6 (NTC) AI 7 (4..20 mA) AI 8 (4..20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*¹) DI 7 DI 8 DI 9 DI 10 DI 11 DI 12 (*²) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7 DO 8 DO 9 DO 10 DO 11 DO 12 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..10 V / 4..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL By selecting these units, default values for parameters PC11=1, PH44=1 and PH45=1 are automatically set, while a “0” value is set for all input/output position parameters not specified in this configuration. (*¹) Digital input derived from analogue input (parameter PH44). (*²) Digital input derived from analogue input (parameter PH45). Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.9 Twin-circuit motocondensing air-based units PG01 = 2 Twin-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) AI 5 (NTC) AI 6 (NTC) AI 7 (4..20 mA) AI 8 (4..20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*¹) DI 7 DI 8 DI 9 DI 10 DI 11 DI 12 (*²) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7 DO 8 DO 9 DO 10 DO 11 DO 12 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL By selecting these units, default values for parameters PC11=2, PH44=1 and PH45=1 are automatically set, while a “0” value is set for all input/output position parameters not specified in this configuration. (*¹) Digital input derived from analogue input (parameter PH44). (*²) Digital input derived from analogue input (parameter PH45). Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.2.10 Twin-circuit motocondensing water-based units PG01 = 2 Twin-circuit Analogue inputs AI 1 (NTC) AI 2 (NTC) AI 3 (NTC / 4..20 mA) AI 4 (NTC / 4.20 mA / DI) AI 5 (NTC) AI 6 (NTC) AI 7 (4..20 mA) AI 8 (4..20 mA / DI) Digital inputs DI 1 DI 2 DI 3 DI 4 DI 5 DI 6 (*¹) DI 7 DI 8 DI 9 DI 10 DI 11 DI 12 (*²) Digital outputs DO 1 DO 2 DO 3 DO 4 DO 5 DO 6 DO 7 DO 8 DO 9 DO 10 DO 11 DO 12 Analogue outputs AO 1 (PWM) AO 2 (0..10 V / 4..20 mA) AO 3 (0..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL By selecting these units, default values for parameters PC11=2, PH44=1 and PH45=1 are automatically set, while a “0” value is set for all input/output position parameters not specified in this configuration. (*¹) Digital input derived from analogue input (parameter PH44). (*²) Digital input derived from analogue input (parameter PH45).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.4 Operating Mode Control The operating mode can take on the following values: “MOdE” parameter Operating mode Description 0=CooL Chiller Summer operation 1=hEAt Heat pump (*) Winter operation (*) Heat pump operation is only possible if the machine has been configured as chiller + heat pump (parameter PG00=2,4,6,8,10).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL WARNING – Operating mode change-over can also happen while the machine is ON: in this case, the machine switches itself OFF – complying with all its timings – then commutates, and thereafter switches itself back ON automatically. Note: During commutation, high and low-temperature controls are enabled. Note: Commutation is disabled during defrosting cycles. 6.4.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.5 Compressor Regulation The control of air temperature (air-to-air machines) or of water temperature (air-to-water or waterto-water machines) is carried out via the control of mechanical components, i.e. compressors and/or fans. Two types of regulation are provided for: lateral-band regulation on inlet temperature and neutral-zone regulation on outlet temperature. 6.5.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Steps Inlet T SP - PB - SP Mode = Operating mode (1 = Winter) SPH1 = LB winter set point PC11 = Regulation type (0 = Lateral band) PC12 = Regulation band PC23 = Heat pump set point lower limit PC24 = Heat pump set point upper limit 6.5.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Compressor start-up Neutral zone Compressor shutdown Outlet T SP - Mode = Operating mode (1 = Winter) SPH1 = NZ winter set point PC11 = Regulation type (1 = Neutral zone) PC14 = Neutral zone PC17 = Extra time for out-of-zone request PC23 = Heat pump set point lower limit PC24 = Heat pump set point upper limit If the outlet temperature still remains outside the neutral zone, even after the extra-time interval set in parameter PC17 has elapsed,
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.6 Compressor Management The program is capable of managing up to a maximum of 3 compressors of the same power for each circuit, thus 6 compressors in total. To each compressor digital inputs for protection devices can be associated, as well as digital outputs for ON/OFF switching. Switching ON/OFF is guaranteed by lateral-band or neutral-zone thermal regulation (see previous chapter) and by some timings which protect the various starting points.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 2) LIFO This method follows the “Last In First Out” logic, i.e. the last compressor to be switched ON will be the first to be switched OFF. 3) FIFO + number of operating hours This type of rotation favours a comparison of the number of operating hours of the various compressors.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL pressure value is stored, the fluid solenoid valve is disabled, and, once the evaporation pressure value has fallen by the Pump-down pressure differential PC43, the compressor is switched OFF. Last compressor request t PC43 Pump-down pressure differential Evap.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PC04 = Compressor minimum ON time. Once it has been activated, a compressor must remain ON for this time interval, before it can be switched OFF again. PC05 = Compressor minimum OFF time. This is the minimum time interval that must elapse from the last switching-OFF, before the compressor can be switched back ON again. PC06 = Minimum time between switchings-ON of the same compressor.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.7 Condensation Regulation Condensation management provides for fan control of condensing pressure: this can be achieved using an analogue output (inverter or phase-cut) for each circuit. If parameter PF02 is set to 0, regulation will be independent of thermoregulation; otherwise, fans will be activated only if the thermoregulator requests the switching ON of at least one compressor. 6.7.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL - PF15 = Summer maximum speed forcing differential (Y) PF26 = Inverter forcing minimum value PF27 = Speed-up time PF31 = Fan low-speed limit PF32 = Fan high-speed limit PF33 = Fan regulation enable below set point PF34 = Fan switching OFF differential below set point (X) The following figure illustrates the behaviour of continuous regulation in the case of winter operation (heat pump).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL - HF32: Position of condensing fan analogue output, Circuit # 2 6.7.2 Condensing valve regulation On water-to-water machines, during summer operation, the water feeding the condensing circuit is controlled according to condensing pressure, via a valve (this can be a two-way solenoid or motoroperated pressure-switch valve, modulating with a 0-10 V control-generated signal). Condensation control is performed in similar fashion to fan speed control.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.8 Fan Management The program is capable of managing up to 2 fans, i.e. one for each circuit. It is possible to associate to each fan a safety digital input and an analogue output for ON/OFF switching. 6.8.1 Fan status Each fan has an associated operating status in the status template of the main menu. A fan can take on the following statuses: - Disabled: The fan has not been configured, the status display shows “dIS”.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.9 Circulating Pump Management On AIR-TO-WATER or WATER-TO-WATER machines, the water-circulating pump is to be controlled; in this case, at least one pump needs to be configured (PG09 > 0).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PP03 = Pump OFF cycle time. Parameter PP07 defines the pump’s behaviour during a defrosting cycle. Parameters PP01 and PP07 may only be modified while the machine is switched OFF. It two pumps have been configured (PG09 = 2), both their operating hours must be equalised. Therefore, every PP08 number of operating hours, shutdown is ordered for the active pump and start-up of the other pump.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL T Set Diff ON Fan OFF ON Compressor OFF In order to enable this function, the external temperature probe (PH24) must also be enabled. In case the probe is not correctly configured, or is faulty, the fan is always switched ON, so as to guarantee its operation anyway, and to prevent potential damage to the plant. 6.10.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Unit ON OFF Flow ON Alarm ON PA01 PA02 PA02 If the alarm should persist for a time equal to the value of parameter Pump operating time at low water level PP09, the pump is also switched OFF, and the alarm becomes a manual reset. The pump is thus protected against potential operation without water. The pump is then restarted when the alarm is reset.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.12 Defrosting Management This procedure is only activated in winter operating mode (heat pump), and when at least one compressor is switched ON. Defrosting is performed by intervening on the refrigerating-circuit inverter valve.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.12.1 Defrosting management via external contact This function is typically used to make it possible to start or end defrosting via an external thermostat/pressure switch, which is connected to the digital input assigned to this function. In this case, defrosting timings as an alternative to the external contact function are ignored.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.12.3 Defrosting heating coil On heat pumps which do not possess the necessary thermal inertia of the recirculation mass (e.g. air-to-air units), defrosting causes a rapid fall in ambient temperature, and it is therefore advisable – to ensure greater comfort – to provide for the control of a defrosting-support heating coil. 6.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.14 Free-Cooling Management In order to achieve substantial energy savings in plant management, the chiller has the capability of using external air – when this has favourable thermal properties – to exploit its energy content and to obtain the cost-free chilling which is known as “free-cooling”.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Fan speed F-C set point PS02 PS04 PS03 PS15 LB set point NZ set point Inlet water temperature Outlet water temperature When the inlet temperature reaches the FC set point and remains below for more than PS14 seconds, free-cooling is disabled; the step, illustrated in the diagram, of hysteresis PS15 (default = 0.5° C) reactivates free-cooling and the ramp (provided the ON status is maintained for longer than PS14 seconds).
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL PG13=1: SEPARATE AIR CIRCUIT In the case of single condensation (PG11=1), or of separate condensation (PG11=0), having two independent air circuits, no distinction is needed, as behaviour is identical. In this situation, it makes sense to use parameter PS21 (free-cooling enable with compressors): - PS21 = 0. If at least one compressor is switched ON, free-cooling is disabled; otherwise, it follows normal ramp regulation. - PS21 = 1.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.15 Temperature Alarm Control 6.15.1 Low and high temperature alarm management According to operating mode, a check is carried out on the exchanger inlet temperature, triggering an alarm where appropriate. - In winter operation (heat pump), if the temperature falls below a given threshold for a settable lapse of time, a “low temperature” alarm is generated: AL01.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.16 Pressure Alarm Control 6.16.1 Management of high-pressure pressure-switch alarm Via a digital input connected to an external pressure switch, it is possible to monitor an excess of maximum condensing pressure. The high-pressure alarm AL11 (and AL12 for Circuit # 2) causes the immediate stopping of the refrigerating circuit, also shutting down any compressors which may be ON, and inhibiting the start-up of others.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL The alarm is initially auto-resetting, unless it exceeds a given number of events within one hour (PA14), in which case it becomes a manual-reset alarm, which can be reset if in the meantime pressure has risen above the minimum threshold by a certain differential value.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.17 Miscellaneous Management 6.17.1 Set point variation The program provides for the possibility of managing parameters Secondary summer set point offset (chiller) SSC1 and Secondary winter set point offset (heat pump) SSH1, which, according to the status of a digital input, sum an offset to the main set point, to allow the latter to be varied. The digital input logic can be set by acting on parameter Secondary set DI logic PH62.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Note 1. Parameter PH44 is linked to operation of the 4th transducer (AI04), with the following meanings: ⋅ PH44 = 0 (Probe figures disabled) ⋅ PH44 = 1 (Probe used as DI06) ⋅ PH44 = 2 (Probe used as NTC external-temperature probe) ⋅ PH44 = 3 (Probe used as NTC accumulation probe) ⋅ PH44 = 4 (Probe used as 4..20 mA for evaporating pressure Circuit # 1) Note 2.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Set Point SP SP + PC64 Ext. T PC65 PC66 The parameters referred to this function are the following: - PC64 = Maximum dynamic offset for summer operation (chiller) - PC65 = Compensation start temperature for dynamic summer set point - PC66 = Compensation stop temperature for dynamic summer set point With offsets greater than zero, behaviour is as follows: Set Point SP + PC67 SP Ext.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.17.6 Power limiting The power of the refrigerating circuit can be limited according to the status of a digital input, in order to enable preventive management of pressure alarms. The digital input logic can be set by acting on parameter Power-limiting logic PH63.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Ext. air T Thresh. Pressure Set poi Set-Diff HPHT PC49 This control can only be enabled in summer operating mode (chiller). 6.17.8 Low-pressure partialisation at low temperatures (heat pump) This control makes it possible to partialise the refrigerating circuit power when external temperature and refrigerated water temperature conditions lead to the triggering of minimum-pressure alarms.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Water T Thresh. Ext. air T Thresh. Pressure Set+Diff Set Alarm LPLT less than 15 minutes This control can only be enabled in winter operating mode (heat pump). Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.17.9 Operating limit management (heat pump) When the external air temperature falls to particularly low levels, it may no longer be convenient or sufficient to heat using the heat pump. The Limit set point PC17 on external temperature is used to disable the heat pump, enabling instead a relay output for start-up authorisation of a boiler or heating-coil set.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Summer set. PC81 ON OFF Accum. T Diff. PC83 The accumulation temperature can be measured via the associated probe; in order to enable this function, probe AI04 must be enabled as accumulation probe (PH44=3). 6.17.11Manual operation The program allows the setting of manual operation for compressors and fans.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 6.17.12Resetting of default parameters Using the “Parameter resetting” procedure, all system parameters can be reset to their original default values. After entering the InSt->MAP menu – which is only accessible while the machine is switched OFF – set parameter PH15=1 and wait for the “0” value to reappear on the display; the system will automatically reset all parameters back to their default values.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 7 DIAGNOSTICS The application is capable of managing a whole series of alarms, relating to compressors, fans, circuits and plant functions. Depending on the various alarm types, it is possible to configure their resetting (whether manual or automatic), a possible notification delay and any actions to be taken in that specific case. When one or more alarms are active, the alarm icon flashes on displays.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 7.2 Alarm Table All alarms managed by the application are listed below. The listing order is the same as the one in which alarms are listed when active.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL AC05 AC06 AP01 AP02 AF01 AF02 Operating hours compressor # 5 Operating hours compressor # 6 Operating hours pump # 1 Operating hours pump # 2 Operating hours fan Circuit # 1 Operating hours fan Circuit # 2 Inlet temperature probe faulty or not connected C1 outlet temperature probe faulty or not connected Condensing pressure transducer C1 faulty or not connected Auto Auto Auto Auto Auto Auto ES04 AI04 probe faulty or not connected Auto ES05 AI
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 8 List of Modbus® Variables The application can be controlled via a supervisor, using the Modbus® protocol. Communication takes place via an RS485 serial interface, which is already incorporated into the controller. The various statuses/parameters exported by the application are listed below. ID 257 Name Value Packed_DI 0 Min. 0 Max.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL bit02=AL03, bit03=AL13, bit04=AL05, bit05=AL11, bit06=AL12, bit07=AL21, bit08=AL22, bit09=AL31, bit10=AL32, bit11=AL41, bit12=AL42, bit13=AL51, bit14=AL52, bit15=AL81 770 PackedAlarm2 0 0 65535 bit00=AL82, bit01=AC21, bit02=AC22, bit03=AC23, bit04=AC24, bit05=AC25, bit06=AC26, bit07=AP21, bit08=AP22, bit09=AF21, bit10=AF22, bit11=AC01, bit12=AC02, bit13=AC03, bit14=AC04, bit15=AC05 R/W bit00=AC06, bit01=AP01, bit02=AP02, bit03=AF01, bit04=AF
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Cooling (Chiller), 1=Winter Heating (Heat pump) 1284 SetpointEstivo_Attuale 8.5 -15.0 23.0 R/W 1285 SetpointInverno_Attuale 44.0 23.0 70.0 R/W 1286 Abilitazione_FC 0 0 1 R/W 1287 abiReg_FC_ValvolaOnOff 0 0 1 R/W 1288 Setpoint_FreeCooling_Attuale 0.0 -15.0 23.0 R/W 1289 StatoSbrinamento_C1 0 0 8 0=OFF. 1..3=WAIT 4..6=Defrosting 7..8=Dripping R/W 0=OFF. 1..3=WAIT 4..6=Defrosting 7..
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1=Heat (Heat pump) 1538 SPC1_SetpointEstate 8.5 -15.0 23.0 R/W 1539 SPH1_SetpointInverno 44.0 23.0 70.0 R/W 1540 SSC1_OffsetSPSecondarioEstate 0.0 -20.0 20.0 R/W 1541 SSH1_OffsetSPSecondarioInverno 0.0 -20.0 20.0 R/W 1542 PM00_Limit_HourCmp ( Low ) 2000. 0 0.0 9999.0 0.0 0.0 9999.0 R/W 0.0 0.0 9999.0 R/W 0.0 0.0 9999.0 R/W 0.0 0.0 9999.0 R/W 0.0 0.0 9999.0 R/W 0.0 0.0 9999.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1570 PM31_OrePompa1_VentilatoreRicircolo ( Low ) 0.0 0.0 9999.0 R/W 1571 PM31_OrePompa1_VentilatoreRicircolo ( High ) 1572 PM32_OrePompa2 ( Low ) 0.0 0.0 9999.0 R/W 1573 PM32_OrePompa2 ( High ) 1574 PM40_Limit_HourFan ( Low ) 2000. 0 0.0 9999.0 1575 PM40_Limit_HourFan ( High ) 1576 PM41_OreVentilatore1_Or_Inverter ( Low ) 0.0 0.0 9999.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1603 PC08_Cmp_ToffOther 20 0 999 R/W 1604 PC09_MassimoNumeroAvviamentiOra 8 4 12 R/W 1605 PC10_CompressoriInErroreSonda 1 0 3 R/W 1606 PC11_TipoRegolazione 1607 0=LB (input), 1=NZ (output), 2=Motoconden sing (DI) 1 0 2 PC12_BandaRegolazioneGradini 2.5 2.0 20.0 R/W 1608 PC14_DeadZone 3.0 0.1 10.0 R/W 1609 PC15_DeadZone_Min 1.0 0.1 10.0 R/W 1610 PC16_DeadZone_Max 5.0 0.1 10.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1637 PC62_SetCommutazioneInverno 10.0 0.0 70.0 R/W 1638 PC64_offsetSetPointDinamico_Estate -10.0 -20.0 20.0 R/W 1639 PC65_tempInizo_SPDinamico_Estate 30.0 -15.0 70.0 R/W 1640 PC66_tempFine_SPDinamico_Estate 60.0 -15.0 70.0 R/W 1641 PC67_offsetSetPointDinamico_Inverno 10.0 -20.0 20.0 R/W 1642 PC68_tempInizio_SPDinamico_Inverno 0.0 -15.0 70.0 R/W 1643 PC69_tempFine_SPDinamico_Inverno 30.0 -15.0 70.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1670 PF31_LimiteMinCondensazioneLineare 30.00 0.00 100.00 R/W 1671 PF32_LimiteMaxCondensazioneLineare 100.0 0 0.00 100.00 R/W 1672 PF33_AbiRegolazioneSottoLimiteMinCond 1 0 1 R/W 1673 PF34_DiffSpegnimentoSottoLimiteMinCond 2.0 0.0 72.5 1674 PF36_AbilitaPreavvioVentilatoreCond 0 0 1 R/W 1675 PF37_SetPreavvioVentilatoreCond 30.0 20.0 40.0 R/W 1676 PF38_VelocitaPreavvio 50.00 0.00 100.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1701 PP07_SpegnimentoPompaInSbrinamento 0 0 1 R/W 1702 PP08_DeltaOreRotazione 4 1 240 R/W 1703 PP09_TempoFunzPompeConBassoQuantitativoAcqua 15 0 999 R/W 1704 PP10_TempoFunzPompeConBassaTemperatura 15 0 999 R/W 1705 PP11_Abilita_HotStart 0 0 1 R/W 1706 PP12_SetPoint_HotStart 36.0 0.0 70.0 R/W 4.0 0.1 10.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1735 PA12_DiffAllarmeBassaPressione 1.0 0.1 72.5 1736 PA13_TempoByPassAllarmeBassaPressione 120 0 999 R/W 1737 PA14_NumeroInterventiAllarmeBP 3 0 5 R/W 1738 PA16_AbilitaControlloBassaPressConBassaTemp 1 0 1 R/W 1739 PA17_SetAllarmeBassaPressioneInBassaTemp 1.0 0.1 145.0 bar/psi R/W 1740 PA18_DiffAllarmeBassaPressioneInBassaTemp 0.5 0.1 72.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1768 PH13_Modbus_Parity 2 0 2 0=None, 1=Odd, 2=Even R/W 1769 PH14_Modbus_StopBit 0 0 1 0=1 bit, 1=2 bits R/W 1770 PH15_RipristinoDefaultParametri 0 0 1 R/W 1771 PH16_Logic_DO_ReverseValve 0 0 1 R/W 1772 PH17_Logic_DI_Alarm 1 0 1 R/W 1773 PH18_Logic_DO_Alarm 0 0 1 R/W 1774 PH19_Logic_DI_Mode 0 0 1 R/W 1775 PH20_Logic_DI_Flow 1 0 1 R/W 1776 PH21_AbilitaSondaTIngresso 1 0 1 R/W 1777 PH22_AbilitaS
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1791 PH50_VisualizzaSoloIcone 0 0 1 R/W 1792 PH51_AbilitaIconaNumericheComp 1 0 1 R/W 1793 PH52_EnableEvcoIcon 1 0 1 R/W 0: Sun = Cooling, Snow = Heating; 1: Sun = Heating, Snow = Cooling 1794 PH53_Icone_Cool_Heat 0 0 1 1795 PH61_Logic_DI_Remote_OnOff 0 0 1 R/W 1796 PH62_Logic_DI_SecSP 0 0 1 R/W 1797 PH63_Logic_DI_DemandLimit 0 0 1 R/W 1798 PH64_Logic_DI_Sbrin 0 0 1 R/W 1=Air-to-air chiller, 2=Airto-air
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1810 HA04_Pos_DO_LimiteFunzionamento 0 0 12 R/W 1811 HA05_Pos_DO_ReverseValve_C1 0 0 12 R/W 1812 HA06_Pos_DO_ReverseValve_C2 0 0 12 R/W 1813 HA07_Pos_DO_ValvolaPumpDown_C1 5 0 12 R/W 1814 HA08_Pos_DO_ValvolaPumpDown_C2 11 0 12 R/W 1815 HA09_Pos_DO_ValvolaFC 7 0 12 R/W 1816 HA19_Pos_AO_Valvola_FC 2 0 4 R/W 1817 HC01a06_Pos_DO_Comp[0] 2 0 12 R/W 1818 HC01a06_Pos_DO_Comp[1] 3 0 12 R/W 1819 HC01a06_
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL 1846 Hd41a46_Pos_DI_ThermalOverloadCmp[2] 8 0 12 R/W 1847 Hd41a46_Pos_DI_ThermalOverloadCmp[3] 9 0 12 R/W 1848 Hd41a46_Pos_DI_ThermalOverloadCmp[4] 0 0 12 R/W 1849 Hd41a46_Pos_DI_ThermalOverloadCmp[5] 0 0 12 R/W 1850 Hd81_Pos_DI_ThermalOverloadFan1 0 0 12 R/W 1851 Hd82_Pos_DI_ThermalOverloadFan2 0 0 12 R/W 1852 Hd91_PosDI_TermicoPompa_Ventilatore 5 0 12 R/W Pag.
C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL Application Manual for C-PRO NANO CHIL and C-PRO MICRO CHIL Version 1.03 – APRIL 2011. Code 144CHILNUE03. File 144CHILNUE03.pdf. This publication is the exclusive property of Evco. Any form of reproduction and circulation is strictly forbidden, unless specifically authorised by Evco. Evco declines any responsibility regarding features, technical data or any mistakes contained in this publication, or consequential from usage of the same.
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