Carel Hecu CO2 User Manual Download Page 1

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I n t e g r a t e d C o n t r o l S o l u t i o n s & E n e r g y S a v i n g s

NO POWER

& SIGNAL

CABLES

TOGETHER

READ CAREFULLY IN THE TEXT!

High effi

ciency condensing unit

EM user manual

Summary of Contents for Hecu CO2

Page 1: ...I n t e g r a t e d C o n t r o l S o l u t i o n s E n e r g y S a v i n g s NO POWER SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT High efficiency condensing unit CO2 OEM user manual...

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Page 3: ...use corrosive chemicals solvents or aggressive detergents to clean the device do not use the product for applications other than those speci ed in the technical manual All of the above suggestions lik...

Page 4: ...4 ENG Hecu CO2 0300085EN rel 2 2 07 05 2019...

Page 5: ...missioning procedure 21 6 FUNCTIONS 22 6 1 Unit ON OFF 22 6 2 BLDC compressor 22 6 3 Compressor control 25 6 4 Compressor management on LT units DSS and independent 27 6 5 Fans 28 6 6 Oil management 2...

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Page 7: ...80TS0C0 Hecu CO2 controller 24Vac RTC 2 unipolar eev connector kit no BMS FLSMTDMCUTU A ECU80TS0D0 Hecu CO2 controller 24Vac RTC 2 unipolar EEV connector kit no BMS with plastic cover FLSMTDMCUTU A PS...

Page 8: ...nd 4 x 4 to 20 mA probes Electrical and mechanical specifications of the controller Power supply 230 Vac 10 15 UP2A 24 Vac 10 15 50 60 Hz 28 to 36 Vdc 10 15 UP2B Maximum power input 25 VA Insulation b...

Page 9: ...resolution 0 1 Hz Inputs 1 motor protection input PTC temp or volt age free contact maximum current 10 mA maximum length 25 m Outputs 1 relay programmable output voltage free contact 240 Vac 1 A Seri...

Page 10: ...e output voltage free con tact 240 Vac 1 A Serial input RS485 Modbus protocol max baud rate 19200 bit s 24 Vdc aux power supply Double insulation 10 precision 50 mA max Maximum length 100 m shielded c...

Page 11: ...z unless otherwise speci ed PSD10102BA Rated input current at 230 V 19 2 to 16 A Fuse or type B circuit breaker 25 A Power cable size 4 mm2 Rated output current 12 A Rated output power at 230 V 3 8 kW...

Page 12: ...C2 GND GND 0 V RS485 ModBus connection three pin plug in connector Tx Rx Tx Rx A STO safety digital input 2 pin plug in connector B E PE earth screw F LEDS POWER green drive powered RUN green drive ru...

Page 13: ...61800 3 ed 2 0 Adjustable speed electrical power drive systems EMC requirements including speci c test methods EN61000 3 2 Electromagnetic compatibility EMC Part 3 2 Limits Limits for harmonic current...

Page 14: ...50000596 power supply 8 28 Vdc 20 output 4 to 20 mA mechanical tting male gas with circular gasket resistant to water and oil operating temp 40T100 C storage temp 20T100 C uid temp average 20T100 C li...

Page 15: ...0 Hz 10 15 for ECU80 24 Vac 10 15 50 60 Hz 28 to 36 Vdc 10 15 to power MPXPRO Ultracella to HECU controller L N Fuse or High press switch MCB U V W L PE K N DC DC 3 4 5 6 7 PTC Klixon Inverter 12A Inv...

Page 16: ...uction temperature PSUC Suction pressure TDIS Discharge temperature Tout GC Gas cooler temperature PGC Gas cooler pressure PREC Receiver pressure 2 Low temperature configuration The con guration de ne...

Page 17: ...ddresses 1 and 3 the corresponding dipswitches are set to 0 and 2 which when added to the basic address 1 will give the nal addresses 1 and 3 see the paragraph Network address on page 13 C1 C2 L1 L L2...

Page 18: ...and polluting atmospheres e g sulphur and ammonia gases saline mist smoke which may cause corrosion and or oxidation strong magnetic and or radio frequency interference thus avoid installation near t...

Page 19: ...ain screen The main screen is the screen that the Hecu CO2 software automatically returns to 5 minutes after the last button was pressed An example of a main screen is shown in the gure which highligh...

Page 20: ...nsers a I O status b Regolation c EEV d Energy save e Alarms f Configuration g Advanced E Evaporators a Stato I O b Configuration c Regulation d EVD driver F Other functions a Oil a I O status b Setti...

Page 21: ...s whether the connected model of inverter is compatible and if so automatically downloads some typical compressor parameters to the inverter The parameters can also be written manually by selecting Ye...

Page 22: ...OSHIBA DY67 E2V14CS1C0 E2V18CS1C0 PS200152041 0 0 7 6 3 kW TOSHIBA RY100 E2V18CS1C0 E2V24CS1C0 PS200184041 0 1 0 8 8 kW Tab 6 b 0 no PEC version 1 PEC version Note go to ksa carel com to check the upd...

Page 23: ...nimum On time a minimum O time and a minimum time between two consecutive starts These parameters can be set on screen Caf35 The logic is described in the following graph min ON time min OFF time min...

Page 24: ...compressor can start The corresponding parameters are found under Compressors Advanced screen Cag49 When the pressure di erential is below 1 barg 0 5 barg xed value the compressor is ready to start Eq...

Page 25: ...o at low outside temperatures This function can be activated even without using an external heater but rather exploiting a special function implemented in the inverter that controls the compressor The...

Page 26: ...he MPXPRO controllers on the evaporators and choose the type of control on screen Cab01 The Smooth Lines function will then need to be con gured on the MPXPRO controllers as described in the next chap...

Page 27: ...compressor cannot start without a request When DSS1 is enabled the following parameters remain hidden on screen Fib04 Switch on period 180s hidden During this period the parallel compressor request i...

Page 28: ...g to the following relationship g g 6 5 Fans Hecu CO2 can manage up to two fans with a speed modulation device which may be an inverter or a PWM phase control device In the same way as for the compres...

Page 29: ...ot drastically lower the condensing pressure at start up Floating condensing pressure set point For the condenser line the oating set point enabled on screen Dd05 is based on the outside temperature T...

Page 30: ...function The parameters can be con gured from screens Bad14 for assigning the analogue output and Fab15 to enabl e the function standard oil separator EEV valve BLDC compressor V Fig 6 r Oil speed bo...

Page 31: ...be enabled then on screen Fab15 enable the washing cycles as shown below Then select the digital output on screen Faa68 The DO will be used by third party controllers evaporators to activate cabinet s...

Page 32: ...opening at pressure P100 If the pressure decreases the opening of the HPV valve remains constant until it returns into the transcritical zone where control resumes as described previously Lower propo...

Page 33: ...procedures Fhb16 High receiver pressure threshold Maximum receiver pressure allowed Maximum o set to be added to the HPV set point when the receiver pressure exceeds the high pressure threshold Fhb17...

Page 34: ...epending on system con guration Examples for analogue variables Suction pressure Condensing pressure Saturated suction temperature Saturated condensing temperature Suction temperature Discharge temper...

Page 35: ...fault con guration can be saved therefore if saving the values another time the new values overwrite the previous ones Important the procedure for resetting the Carel default values involves clearing...

Page 36: ...S5 DI2 S6 DI3 S7 DI4 GND 5Vdc VL GND DI5 M S N Tx Rx T U I Tx Rx Tx Rx R1 R5 R2 R3 R4 AUX2 Power Supply AC 115 230 V 200 mA max PWM modulating fans 20 mA max totally Trim heater Expansion board 0 to1...

Page 37: ...tandard Range 50T90 C 4 0 to 5 V ratiometric probe 0 0 4 Tab 7 c Note the NTC L243 PTC PT1000 probes can only be con gured on the full optional models or with EEV driver Fd Assign tGS superheated gas...

Page 38: ...x DI1 S4 S3 S2 S1 GND DI2 VREF 2 AT 24 Vac 25 VA shield NTC ratiometric pressure transducer S CAREL ExV giallo yellow bianco white verde green marrone brown 24 Vac R6 R5 R4 R3 R2 R1 230 V 20 A max EN6...

Page 39: ...arameters Modification Password 1234 Fig 7 g 2 To enter Programming mode press Prg and enter the password 1234 SET PRG ESC M E N U H E L P Parameters Categ 1 16 1 Probes 2 Control 3 Compressor Fig 7 h...

Page 40: ...0 to 5 Vrat 0 5 to 4 5 Vrat Tab 7 l The parameter settings are listed below Par Description Def Min Max UOM P Type B1 B3 0 NTC Standard Range 50T90 C 1 NTC Enhanced Range 0T150 C 2 PT1000 0 0 2 P4 Ty...

Page 41: ...l alarm active not active 2 Do not select 3 enable defrost not enabled enabled 4 start defrost not active active 5 Door switch active not active 6 Remote ON OFF OFF ON 7 Change set point r4 r5 from sw...

Page 42: ...gital input does not open before the time dP1 elapses the defrost will terminate by time and alarm Ed1 will be displayed defrost ended by timeout opening the digital input does not start the defrost o...

Page 43: ...module 1 EVD module enabled 1 0 1 EVD EVO parameter table The following parameters relating to the EVD EVO driver can be con gured from UltraCella Category EVO Par Description Def Min Max UOM P1 Enabl...

Page 44: ...d automatically in accordance with the type of refrigerant and application selected together with the proportional gain and integral time values required by the controller and already shown in paragra...

Page 45: ...onal gain from 3 to 30 Increasing the proportional gain K increases valve response speed and is recommended if the system is particularly perturbed or to make superheat control faster If greater than...

Page 46: ...n the condition is no longer present or the controller is switched o standby When low superheat status is activated any local solenoid valves can be forced closed parameter P10 Par Description Def Min...

Page 47: ...reset and the signal is shown again Automatic when the alarm condition ceases the alarm is automatically acknowledged the LED comes on steady and the corresponding screen remains displayed until Alar...

Page 48: ...switch Low suction pressure High condensing pressure Alarms from probe Low suction pressure High suction pressure Low condensing pressure High condensing pressure One possible example for the low pres...

Page 49: ...e fans on and stopping all the compressors ignoring the times 8 4 Anti liquid return MPX valve alarm For alarms that stop the compressor if the anti liquid return MPX valve function is enabled the eva...

Page 50: ...4 Receiver pressure probe broken or disconnected Receiver pressure probe faulty or not con gured correctly x Not present Auto ALA46 Vapour injection pressure probe broken or disconnected Vapour inject...

Page 51: ...ol action Vapour injection disabled Check T_vap_inj probe No action on the parallel compressor Parallel compressor stops for control Check P_suc_par probe No action on the parallel compressor Check T_...

Page 52: ...ssure alarm for generic modulating function 1 or 2 x Ffb09 Ffb15 Auto ALG27 Generic 1 2 normal alarms Generic alarm 1 or 2 x Ffc07 Ffc09 Auto ALG28 Generic 1 2 serious alarms Serious generic alarm 1 o...

Page 53: ...or operation presence of liquid refrigerant charge sizing Check evaporator valve operation and status valves blocked incorrect con guration wiring Check MPXPRO UC setting probe operation and positioni...

Page 54: ...MPXPRO P9 Auto ALW47 60 73 86 99 Store 1 5 Low suction temperature alarm Suction temperature t_gs 1 to 5 below threshold with the risk of liquid returning to the compressor x from MPXPRO P12 Auto ALW...

Page 55: ...heck t_gs and p_ev probes type wiring installation position probe limits reading compared against mechanical device Check alarm settings Check E2V valve operation correct opening closing check that it...

Page 56: ...a certain threshold set on Hb04 x Not settable Auto ALP06 Parallel compressor low pressure di erential insu cient lubrication Di erence between parallel compressor suction and discharge pressure too l...

Page 57: ..._par probe type wiring installation position probe limits reading compared against mechanical device Check alarm threshold setting on screen Hb04 Parallel compressor shutdown Check correct compressor...

Page 58: ...re detailed information on programming the key see to the pCO Manager manual Using the Smart Key with the pCO PC programmable controllers Switch o the pCO remove any peripherals connected in the pLAN...

Page 59: ...r integrated into the 1tool programming environment Installing pCOmanager Go to http ksa carel com and in the pCO sistema section select pCO_ manager After accepting the general terms and conditions f...

Page 60: ...following les applicationName 2CW descriptor of categories access pro les monitoring groups CommissioningLogFileName CSV le used for the commissioning log with the data of the variables logged during...

Page 61: ...61 ENG Hecu CO2 0300085EN rel 2 2 07 05 2019 9 2 Software revision history New version 3 0 012...

Page 62: ...62 ENG Hecu CO2 0300085EN rel 2 2 07 05 2019 Notes...

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Page 64: ...L 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 Hecu CO 2 0300085EN rel 2 2 07 05 2...

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