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OEM Manual  – CUBO

2

 SMART 

 

 

 

Pag. 35 

 

15

 

HECU Controller layout 

 
 

 

 

 
 

 
 
 
 

 
 
 

 

Analog Inputs 

Digital Inputs 

Analog Ouput 

Digital Ouput 

U1  - 

DI1  ON/OFF remote 

Y1  Modulating 

fans 

NO1-C1  Serious alarm 

U2  Ambient temperature  DI2  High pressostat 

alarm 

Y2  - 

NO2-C2  - 

U3  Suction temp. MT 

DI3  Evaporator Request  Y3  - 

NO3-C3  - 

U4  Discharge temp. MT 

DI4  Change Setpoint 

 

 

NO4-C4  - 

U5  Gas Cooler Outlet 

temp. 

DI5  - 

 

 

NO5-C5  - 

U6  Suction pres. MT  

 

 

 

 

NO6-C6  By-pass solenoid valve MT 

U7  Discharge pres. Trans. 

MT /GC pressure) 

 

 

 

 

NO7-C7  Compressor Ready 

U8  - 

 

 

 

 

NO8-C8  Cabinet washing 

U9  - 

 

 

 

 

 

 

U1
0 

Receiver pres. 

 

 

 

 

 

 

Содержание CUBO2 SMART

Страница 1: ...OEM Manual CUBO2 SMART Pag 1 OEM Manual EN Version UMTT MT OEM rev 2 1 date 28 05 2019...

Страница 2: ...OEM Manual CUBO2 SMART Pag 2 pagina libera empty page...

Страница 3: ...nual Guide POINT 1 2 INTRODUCTION SAFETY POINT 3 6 UNIT DESCRIPTION POINT 7 COMMISSIONING POINT 8 SOFTWARE USER INTERFACE POINT 9 SERIAL COMMUNICATIONS POINT 10 MAINTENANCE POINT 11 13 ALARMS AND TROU...

Страница 4: ...Estimation of the refrigerant charge 14 7 2 4 Charging procedure 15 8 User Interface and main Software features 16 8 1 User Interface 16 8 2 On Off unit 17 8 3 Regulation set point 18 8 4 MPXPRO and...

Страница 5: ...elief valves are necessary in all those sections of the system which can be isolated by shut valves Due to the high thermal coefficient of expansion of liquid CO2 fluid pipes must not be blocked All S...

Страница 6: ...Using the refrigeration unit with changed values may cause failure of the safety stop function and lead to a burst or fire When abnormal operation is detected or before starting disassembly or repair...

Страница 7: ...e is controlling the pressure inside the receiver The HPV valve is controlling the Gas Cooler pressure The system operates at the following pressures MT Compressor discharge pressure PGC operating bet...

Страница 8: ...ode respect the minimum distances for properly maintenance In the case of several units in parallel avoid the gas cooler air flow direct on second units but install in order to have opposite air flow...

Страница 9: ...er pipe usage but with smaller diameters easier installation The collector must be properly sized and installed in a horizontal position SCM Frigo recommends connection with up to 3 remote evaporators...

Страница 10: ...uses switches or circuit breakers on the equipotential protection circuit 9 Lead sizes conform to the minimum sizes given by current standards 10 Check the electric connections have been made correctl...

Страница 11: ...re yards slurry or intensive cattle breeding centres sources of ammonia pollutants 6 5 Earth connection The unit must be connected to the ground line using the terminal provided by the constructor bef...

Страница 12: ...rection is marked on the top Clockwise to Open Evacuate the system from both the high and low side condensing unit service connections Stop the Vacuum procedure only when the standing vacuum pressure...

Страница 13: ...PZ100S or RENISO PAG100 7 2 2 Procedure for additional oil refill 1 Close valve 1 89 on circuit diagram 2 Stop the unit switch off 3 Vent gas at valve 1 until pressure drops to 0 bar g check on displ...

Страница 14: ...elated to the evaporator inner volume You can apply also the following formula Y CO2 charge 172 2222 X Evap Volume 750 Using this diagram you can calculate refrigerant charge related to the pipe diame...

Страница 15: ...arks about the CO2 charging procedure CO2 of purity class of N4 0 or comparable or with moisture content 10 ppm must be used Charge R744 vapour into the system to a pressure of 10 bar g then liquid ch...

Страница 16: ...status 3 Return to back mask or higer level C Rotation speed of compressor rps 4 Scroll a list upwards or increases the value highlighted by the cursor D Current Time and date 5 Scroll a list downwar...

Страница 17: ...he regulation are reported here below From main menu press Enter button and appear access with password see A mask Note Current mask total masks The horizontal rows mean access level Letters and numbe...

Страница 18: ...point Suction set point request P I regulation mode In case of remote evaporators enabled regulation type switch automatically from fixed point to floating setpoint Min and max setpoint variation admi...

Страница 19: ...ber of evap and capacity of each unit It is important to set the right serial address for each evaporator installed with following sequence 11 12 13 14 15 Different sequences and address not allowed S...

Страница 20: ...setpoint Rd Differential PLt Offset below the setpoint to switch off the regulation Smooth Lines PHs Maximum superheat offset Smooth Lines P3 Superheat setpoint P4 Control valve Proportional gain P5...

Страница 21: ...monitoring directly by Cubo2 Smart user interface The communication between condensing unit and evaporators controller is allowed only with some specific model of controllers MPXPRO or ULTRACELLA equi...

Страница 22: ...connections and wirings MPXPRO ULTACELLA connector to use for the serial connection with HECU RX RX REF Carel Controller Connection Port Note MPXPRO Terminals GND Tx Rx Tx Rx Modbus 19200bps ULTRACELL...

Страница 23: ...filter Gas coolers Whilst an annual check must be carried out it is recommended that gas coolers is maintained cleaned to assure good performance of the system Keep the gas cooler coil clean from dir...

Страница 24: ...h Pressure codes that could help the user to identify the possible alarm reason and to understand which checks to perform Here below some details about how to interpret the different codes shown in th...

Страница 25: ...mask Dag13 No delay Automatic ALA24 Suction pressure probe broken or disconnected Suction pressure probe broken disconnected or not properly configured x Shut off of LT MT compressor according to the...

Страница 26: ...ieldbus but they result off line x Shut off the unit ALT15 SUPERHEAT Low shuperheat alarm Low SH alarm settable by mask Cae30 threshold and delay A warning for Low SH will be issued without any delay...

Страница 27: ...ted in the same mask x Shut Off compressor Settable by mask Cag55 Automatic ALW28 High discharge gas temperature Discharge temperature measured by the probe is higher than the Alarm threshold set on m...

Страница 28: ...Store number MOP alarm x Display only refer to MPXPRO Ultracella user manual ALW49 62 75 88 ALZ01 Store number LOP alarm x Display only refer to MPXPRO Ultracella user manual ALW50 63 76 89 ALZ02 Stor...

Страница 29: ...s envisioned due to deceleration that is too high high over voltage peaks on the power supply network Decrease deceleration 4 Undervoltage The DC voltage of the intermediate circuit is below the limit...

Страница 30: ...ted Operation of external contactor 24V power supply loss Check the wiring Restore external contactor 17 Motor phase fault Motor cable disconnected Check the connections of the motor cable 18 Reserved...

Страница 31: ...the internal status of PSD that is in OFF Check power supply stability this behaviour can happen if there are some undervoltage peak in the main power supply 11 3 PSD led status In case of PSD alarm...

Страница 32: ...a defrost only if evaporator controllers are connected to the CDU via RS485 Wrong configuration of PSD power driver Check the active alarm and try to reset the alarm consulting the alarms table sugge...

Страница 33: ...Suction discharge pressure where compressor is allowed to run without problem Envelope Zone Description 1 Inside envelope 2 High compressor ratio 3 High condensing pressure 4 High current 5 High suct...

Страница 34: ...quid shut off valve 10 109 Service valve 11 125 BPL1 Low pressure transducer 12 129 BTA1 Comp Suction temperature probe 13 129 BTM1 Comp Discharge temperature probe 14 129 BTE1 Ambient temperature pro...

Страница 35: ...alarm U2 Ambient temperature DI2 High pressostat alarm Y2 NO2 C2 U3 Suction temp MT DI3 Evaporator Request Y3 NO3 C3 U4 Discharge temp MT DI4 Change Setpoint NO4 C4 U5 Gas Cooler Outlet temp DI5 NO5...

Страница 36: ...nal blocks R R G On off remote use terminal blocks DI1 GND3 Remove bridge also present Remote digital alarm use terminal blocks NO1 C closed in case of alarm CAREL Remote evap lan use terminal blocks...

Страница 37: ...52mm 3 8 K65 9 52mm 3 8 K65 9 52mm 3 8 K65 9 52mm PS Suction Liquid 80 bar 80 bar PED Category I Dimensions AxBxH 1150 x 617 x 803 mm Generic Transport dimensions AxBxH 1300 x 700 x 950 mm Gross weigh...

Страница 38: ...57 2341 2766 3241 3775 4375 20 1388 1721 2086 2490 2944 3454 4029 4678 15 1772 2133 2538 2997 3518 4108 4778 5534 5 TBD UMTT 045 MTDX DY45 Tentative Data Cooling Capacity W SC 0 K SH 10 K Min speed Ev...

Страница 39: ...20 3091 3714 4475 5358 6349 7434 8599 9829 15 3898 4632 5510 6517 7639 8861 10169 11549 5 TBD 10287 TBD UMTT 100 MTDX RY100 Tentative Data Cooling Capacity W SC 0 K SH 10 K Min speed Evaporating SST 3...

Страница 40: ...29 2 12 5 166 7 0 44 6 41 8 591 33 0 27 4 12 9 172 8 0 46 4 42 8 606 32 0 25 6 13 3 179 9 0 48 2 43 9 622 31 0 23 8 13 8 185 10 0 50 0 45 0 638 30 0 22 0 14 3 192 11 0 51 8 46 1 654 29 0 20 2 14 8 199...

Страница 41: ...OEM Manual CUBO2 SMART Pag 41 22 Note...

Страница 42: ...ation The installer is responsible for verify certifications design installation unit and all present systems SCM Frigo is not responsible for any malfunction in the system due by the unit and or syst...

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