Carel uC2SE User Manual Download Page 3

3

ENGLISH

μC

2

SE  -  +030220426 -  rel. 2.1 - 09.06.2010

 

IMPORTANT WARNINGS

CAREL bases the development of its products on several years’ experience in the HVAC fi eld, 
on continuous investment in technological innovation of the product, on rigorous quality 
procedures and processes with in-circuit and function tests on 100% of its production, on 
the most innovative production technologies available on the market. CAREL and its branch 
offi

  ces/affi

  liates do not guarantee, in any case, that all the aspects of the product and the 

software included in the product will respond to the demands of the fi nal application, even 
if the product is built according to state-of-the-art techniques. The client (builder, develo-
per or installer of the fi nal equipment) assumes every responsibility and risk relating to the 
confi guration of the product in order to reach the expected results in relation to the specifi c 
fi nal installation and/or equipment. CAREL in this case, through specifi c agreements, can 
intervene as consultant for the positive result of the fi nal start-up machine/application, but 
in no case can it be held responsible for the positive working of the fi nal equipment/appa-
ratus.
The CAREL product is a state-of-the-art product, whose operation is specifi ed in the 
technical documentation supplied with the product or can be downloaded, even prior to 
purchase, from the website www.carel.com.
Each CAREL product, in relation to its advanced technological level, needs a phase of 
defi nition / confi guration / programming / commissioning so that it can function at its best 
for the specifi c application. The lack of such phase of study, as indicated in the manual, can 
cause the fi nal product to malfunction of which CAREL can not be held responsible.
Only qualifi ed personnel can install or carry out technical assistance interventions on the 
product.
The fi nal client must use the product only in the manner described in the documentation 
related to the product itself. 
Without excluding proper compliance with further warnings present in the manual, it is 
stressed that in any case it is necessary, for each Product of CAREL:
•  To avoid getting the electrical circuits wet. Rain, humidity and all types of liquids or con-

densation contain corrosive mineral substances that can damage the electrical circuits. In 
any case, the product should be used and stored in environments that respect the range 
of temperature and humidity specifi ed in the manual. 

•  Do not install the device in a particularly hot environment. Temperatures that are too 

high can shorten the duration of the electronic devices, damaging them and distorting 
or melting the parts in plastic. In any case, the product should be used and stored in envi-
ronments that respect the range of temperature and humidity specifi ed in the manual. 

•  Do not try to open the device in any way diff erent than that indicated in the manual.
•  Do not drop, hit or shake the device, because the internal circuits and mechanisms could 

suff er irreparable damage.

•  Do not use corrosive chemical products, aggressive solvents or detergents to clean the 

device.

•  Do not use the product in application environments diff erent than those specifi ed in the 

technical manual.

All the above reported suggestions are valid also for the control, serial unit, programming 
key or nevertheless for any other accessory in the product portfolio of CAREL.
CAREL adopts a policy of continuous development. Therefore, CAREL reserves the right to 
carry out modifi cations and improvements on any product described in the present docu-
ment without prior notice.
The technical data in the manual can undergo modifi cations without obligation to notice.

The liability of CAREL in relation to its own product is regulated by CAREL’s general contract 
conditions edited on the website www.carel.com and/or by specifi c agreements with 
clients; in particular, within the criteria consented by the applicable norm, in no way will CA-
REL, its employees or its branch offi

  ces/affi

  liates be responsible for possible lack of earnings 

or sales, loss of data and information, cost of substitute goods or services, damage to things 
or persons, work interruptions, or possible direct, indirect, incidental, patrimonial, of covera-
ge, punitive, special or consequential in any way caused damages, be they contractual, out-
of-contract, or due to negligence or other responsibility originating from the installation, 
use or inability of use of the product, even if CAREL or its branch offi

  ces/affi

  liates have been 

warned of the possibility of damage. 

  

Disposal of the product

In reference to European Community directive 2002/96/EC issued on 27 January 
2003 and the related national legislation, please note that:
1.  we cannot be disposed of as municipal waste and such waste must be collec-

ted and disposed of separately;

2.  the public or private waste collection systems defi ned by local legislation must be used. 

In addition, the equipment can be returned to the distributor at the end of its working life 
when buying new equipment.

3.  the equipment may contain hazardous substances: the improper use or incorrect dispo-

sal of such may have negative eff ects on human health and on the environment;

4.  the symbol (crossed-out wheeled bin) shown on the product or on the packaging and on 

the instruction sheet indicates that the equipment has been introduced onto the market 
after 13 August 2005 and that it must be disposed of separately;

5.  in the event of illegal disposal of electrical and electronic waste, the penalties are speci-

fi ed by local waste disposal legislation.

Summary of Contents for uC2SE

Page 1: ...C2 SE electronic control User manual...

Page 2: ......

Page 3: ...should be used and stored in envi ronments that respect the range of temperature and humidity specified in the manual Do not try to open the device in any way different than that indicated in the man...

Page 4: ...4 E N G L I S H C2 SE 030220426 rel 2 1 09 06 2010...

Page 5: ...ycle 22 3 11 Reverse cycle water cooled condensing unit 23 3 12 Roof Top units 24 4 PARAMETERS 25 4 1 General parameters 25 4 2 Menu structure 25 4 3 Parameter tables 26 5 DESCRIPTION OF THE PARAMETER...

Page 6: ...6 E N G L I S H C2 SE 030220426 rel 2 1 09 06 2010...

Page 7: ...face 1 2 1 Display The display features 3 digits with the display of the decimal point between 99 9 and 99 9 Outside of this range of measurement the value is automatically displayed without the decim...

Page 8: ...and vice versa press for 5 s Provides immediate access to the condenser and evaporator pressure and temperature probes and DTE DTC1 2 press once J K Manual alarm reset press for 5 s Immediately reset...

Page 9: ...ion valve MCH200002 I O expansion board for 2 SE EVD 40 driver for electronic expansion valve Optional board CONVONOFF PWM digital converter CONV0 10A0 PWM analogic converter MCH2 T terminal PW Modbus...

Page 10: ...robe 4 supply probe 5 electrical heater 6 evaporator 7 supply fan overload 8 supply fan 9 compressor 1 10 high pressure 11 compressor overload 12 low pressure 13 ambient probe 14 compressor 2 Key 1 co...

Page 11: ...denser probe 1 and 2 4 supply probe 5 electrical heater 1 and 2 6 evaporator 1 and 2 7 supply fan 8 ambient probe 9 compressor 1 10 high pressure 1 and 2 11 compressor overload 1 and 2 12 low pressure...

Page 12: ...ctrical heater 1 e 2 6 evaporator 1 and 2 7 supply fan overload 8 supply fan 9 compressor 1 10 high pressure 1 e 2 11 compressor overload 1 and 2 12 low pressure 1and 2 13 ambient probe 14 compressor...

Page 13: ...itch 5 outlet evaporator probe 6 fan 7 antifreeze heater 8 inlet evaporator probe 9 compressor 1 10 high pressure 11 compressor overload 12 low pressure 13 water pump 14 compressor 2 Key 1 condenser f...

Page 14: ...tch 5 outlet temperature probe 6 evaporator 1 and 2 7 outlet evaporator probe 1 and 2 8 antifreeze heater 1 and 2 9 compressor 1 10 high pressure 1 and 2 11 compressor overload 1 and 2 12 low pressure...

Page 15: ...ator 1 and 2 7 outlet evaporator probe 1 and 2 8 antifreeze heater 1 and 2 9 compressor 1 10 high pressure 1 and 2 11 compressor overload 1 and 2 12 low pressure 1 and 2 13 inlet evaporator probe 14 c...

Page 16: ...et evaporator probe 5 evaporator 6 antifreeze heater 7 inlet evaporator probe 8 compressor 1 9 high pressure 10 compressor overload 11 low pressure 12 water pump 13 compressor 2 Key 1 water condensing...

Page 17: ...ondensator 1 and 2 3 flow switch 4 outlet temperature probe 5 outlet evaporator probe 1 and 2 6 antifreeze heater 1 and 2 7 evaporator 8 water pump 9 compressor 1 10 high pressure 1 and 2 11 compresso...

Page 18: ...tlet evaporator probe 1 and 2 6 evaporator 1 and 2 7 antifreeze heater 1 and 2 8 water pump 9 compressor 1 10 high pressure 1 and 2 11 compressor overload 1 and 2 12 low pressure 1 and 2 13 inlet evap...

Page 19: ...evaporator probe 6 antifreeze heater 7 evaporator 8 condenser 9 condenser probe 10 compressor 1 11 high pressure 12 compressor overload 13 low pressure 14 water pump 15 compressor 2 Key 1 external 2 i...

Page 20: ...reversing valve 1 and 2 4 condenser probe 5 flow switch 6 outlet evaporator probe 7 condenser probe 1 and 2 8 condenser 1 and 2 9 outlet evaporator probe 1 and 2 10 antifreeze heater 1 and 2 11 evapor...

Page 21: ...condensing unit 3 9 1 Single circuit Key 1 condenser fan overload 2 fan 3 condenser probe 4 compressor 1 5 high pressure 1 and 2 6 compressor overload 1 and 2 7 low pressure 1 and 2 8 compressor 2 9...

Page 22: ...densing unit without reverse cycle 3 10 1 Single circuit Key 1 condenser fan overload 2 fan 3 condenser probe 4 compressor 1 5 high pressure 1 and 2 6 compressor overload 1 and 2 7 low pressure 1 and...

Page 23: ...oled condensing unit 3 11 1 Single circuit Key 1 flow switch 2 water cond temperature probe 3 condenser 4 compressor 1 5 high pressure 6 compressor overload 7 lw pressure 8 compressor 2 9 compressor 3...

Page 24: ...compressor overload 1 and 2 8 low pressure 1 and 2 9 compressor 3 10 compressor 2 11 compressor 4 12 water pump Key 1 condenser fan overload 2 fan 3 condernser probe 1 and 2 4 supply probe 5 electrica...

Page 25: ...ion of the parameters that typically can be set by the user User parameters and the Direct parameters consequently relating to the options Direct parameters Accessible without password this are used t...

Page 26: ...R W 221 Integer 04 Probe type B4 0 not present 1 ON OFF D I 2 NTC Out Probe 3 ratiometric cond Probe 5 Vdc 4 differential control probe F 0 4 int 1 0 15 R W 222 Integer 05 Probe type B5 0 not present...

Page 27: ...4 Analog b04 Value read by probe B4 D 0 0 C F Dbar 0 105 R 105 Analog b05 Value read by probe B5 D 0 0 C F 0 X 106 R 106 Analog b06 Value read by probe B6 D 0 0 C F 0 X 107 R 107 Analog b07 Value read...

Page 28: ...g defrost F 400 800 C F bar 0 1 30 D 63 R W 63 Analog d20 Outside temperature differential sliding defrost F 10 0 800 C F 0 1 100 D 64 R W 64 Analog Table 4 f 4 3 7 Fan setting parameters F display in...

Page 29: ...ng F 0 5 Flag 1 1 56 R W 263 Integer H06 Cooling Heating digital input 0 absent 1 present U 0 1 Flag 1 0 14 R W 14 Digital H07 ON OFF digital input 0 absent 1 present U 0 1 Flag 1 0 15 R W 15 Digital...

Page 30: ...p alarm2 26 Comp alarm3 27 Comp alarm4 F 0 23 Int 1 0 69 R W 276 Integer P09 Digital input 2 selection F 0 27 Int 1 0 70 R W 277 Integer P10 Digital input 6 selection F 0 27 Int 1 0 X 71 R W 278 Integ...

Page 31: ...sel suppression 0 Disabled 1 Enabled in cool 2 Enabled in Heat 3 Always enabled F 0 3 Flag 1 0 88 R W 295 Integer r28 Min compressor running time for low load damper travel time F 0 999 s 1 60 89 R W...

Page 32: ...rm D 0 1 0 44 R 44 Digital General alarm D 0 1 0 45 R 45 Digital Probe alarm D 0 1 0 46 R 46 Digital Compressor warning D 0 1 0 47 R 47 Digital Compressor error alarm D 0 1 0 25 R 25 Digital EVD 1 war...

Page 33: ...n max U O M variat def visibility supervis variable Modbus variable type Indicates the unit parameter Carel SV communication F 0 250 108 R 207 Integer Gain constant for pressure probe calibration F 0...

Page 34: ...m bit3 MOP warning bit4 LOP warning bit5 high suction temperature warning bit6 valve open after power failure alarm bit7 flat battery alarm D 0 0 0 R 207 Integer Controls status indicators for EVD2 bi...

Page 35: ...s of measurement The recommended value is 4 default Input limit 22 Establishes the maximum variation that can be measured by the probes in one unit program cycle in practice the maximum variations all...

Page 36: ...ntifreeze heater in defrost auxiliary heater in heating set point A08 Represents the threshold below which the auxiliary heater is ON in defrost and in heating mode The set point in heating is compens...

Page 37: ...the EVD below which the antifreeze alarm is activated when the alarm is active the compressors in the circuit affected are switched off while the pump remains on to reduce the possibility of freezing...

Page 38: ...s subject to the controller parameter H05 2 the compressor is started when required after the set time from the activation of the water pump or outlet fan in air air units If the pump outlet fan is al...

Page 39: ...gram below shows an example of the operation of the pump and with burst active when H05 3 see parameter H05 The dashed areas on the compressor line indicate the pump compressor and compressor pump del...

Page 40: ...ng mode on probe B3 If sliding is defrost enabled the start defrost temperature decreases starting from d03 proportionally to the outside temperature End defrost temperature pressure d04 Establishes t...

Page 41: ...pressor is stopped and subsequently restarted immediately If d13 0 the compressor is not stopped and the reversing valve is switched immediately End defrost with two gas circuits 1 fan circuit d14 Thi...

Page 42: ...circuit is ON parallel operation in each circuit F02 2 ON when the corresponding compressor is ON with ON OFF control based on the temperature pressure settings for the minimum and maximum speed param...

Page 43: ...nts the temperature or the pressure above which the fans are switched off Fig 5 a l Temperature pressure differential for maximum speed in heating F09 This represents the temperature or pressure above...

Page 44: ...0 Low noise deactivated F15 1 Low noise activated in cooling F15 2 Low noise activated in heating F15 3 Low noise activated in cooling and heating N B The variation in the set point is not active duri...

Page 45: ...IN Open Cooling D IN Closed Heating ON OFF digital input H07 Establishes whether the ON OFF selection from digital input is enabled or disabled If the selection is enabled H07 1 the open status switc...

Page 46: ...outputs H11 6 H11 7 H11 8 H11 9 H11 10 H11 11 H11 12 C1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 compressor 1 C2 1 step heater 1 step heater 1 step heater compres...

Page 47: ...In smartSET mode the following values are saved Only when R06 0 or 4 DTE difference between evaporator inlet temperature B1 and outlet temperature B2 B5 calculated at full load all compressors on whe...

Page 48: ...arms the compressors are stopped immediately ignoring the times Flow switch alarm delay in steady operation P02 Establishes a delay in the recognition of the flow switch alarm in steady operation so a...

Page 49: ...tact cooling and heating normally open P08 14 second cooling set point from external contact and heating from time band N O P08 15 end defrost from external contact circuit 1 N C P08 16 end defrost fr...

Page 50: ...unction is disabled Mute alarm relay using PRg mute button P35 0 the PRG mute button does not alter the status of the relay if the alarm is active and in progress P35 1 the PRG mute button alters the...

Page 51: ...ortional band below the set point by the value r07 Outlet temperature control by time r06 4 only chiller This type of control is based on the need to maintain the outlet temperature as constant as pos...

Page 52: ...activation times are always r08 and r09 Deactivation time heating In heating mode if the temperature rises above the set point the deactivation time will decrease more the further the temperature mov...

Page 53: ...mperature until reaching the set point r24 r07 observing the reversing times The change for heating to cooling occurs by increasing temperature until reaching the set point r24 r07 observing the rever...

Page 54: ...me the damper is no longer moved The sum is reset when the damper is closing Operation is the same in closing Differential during the low load condition in chiller mode r29 This parameter represents t...

Page 55: ...rtional control band is respectively 1 divided by the number of compressor steps when freecooling heating is disabled Fig 5 b s 2 managed with freecooling heating operating and the compressors activat...

Page 56: ...ition following control or alternatively directly to the minimum opening position set if the damper was previously in the completely open position Disable compressors for low outside temperature in Fr...

Page 57: ...All Evd 1 Eb1 EVD 1 battery alarm All Evd 2 Eb2 EVD 2 battery alarm All Sonda AD Et uAD terminal probe alarm Start hours for 2nd set point in cooling t06 I92 Hour when the second cooling set point sta...

Page 58: ...Automatic ON ON 51 R Temperature advice Digital Lt Low ambient temp Depends on P05 ON ON 51 R Temperature advice Digital AHt High temperature at the start up Automatic OFF OFF OFF ON 50 R General war...

Page 59: ...ed irrespective of the status of the pump and the compressors The compressors the pumps and fans stop without observing the protection times or are inhibited from starting the alarm relay is activated...

Page 60: ...temperature is compared against the threshold A14 The compressors in circuit 1 and the condenser fans in circuit 1 are immediately stopped the buzzer and alarm relay are activated and the display sta...

Page 61: ...d nO2 MOP warning maximum operating pressure circuit 2 The warning appears on the display and if the expansion card is fitted the corresponding relay is activated LO1 LOP warning lowest operating pres...

Page 62: ...ssure circuit 1 ID5 Remote ON OFF reverse cycle condensing unit if reversible Y1 Ramp circuit 1 condenser C1 2 NO1 Compressor 1 C1 2 NO2 Heater or reversing valve in 1st circuit C3 4 NO3 Fan 1 evapora...

Page 63: ...metic compressors The following figure shows the connection diagram for the C2 SE expansion card code MCH200002 Fig 7 b NOTE The expansion features two LEDs on the main board to see these remove the t...

Page 64: ...be connected to the C2 SE without using this module 7 7 Minimum and maximum fan speed calculation This procedure should only be performed when the fan speed control boards are sued code MCHRTF it mus...

Page 65: ...the button can be released after a few seconds the LED turns off and the key can be disconnected from the instrument in case of different signals if the green LED doesn t turn on or if there are some...

Page 66: ...e environment where its is installed interacting with the units controlled by the C2SE The AD can be used to set time bands the temperature and humidity set point switch the system on off and change o...

Page 67: ...dimensions of each component in the C2 SE controller all the values are expressed in millimetres Note the dimensions include the free connectors inserted Fig 8 a Fig 8 b Fig 8 c Fig 8 d MCH200000 C2...

Page 68: ...0220426 rel 2 1 09 06 2010 Model A component side B C D E MCHRTF04C0 43 100 40 50 107 MCHRTF08C0 75 100 58 82 107 MCHRTF12C0 75 100 58 82 107 Note the version with screw teminals code MCHRTF D0 is ava...

Page 69: ...24 Vac range 10 15 50 60 Hz Maximum power input 3W Fuse compulsory in series with the power supply to the C2 SE 315mAT 12 pin connector Max current 2 A for each relay output extendable to 3 A for one...

Page 70: ...ly Separate the power cables relay outputs from the cables corresponding to the probes digital inputs and serial line Use a transformer dedicated exclusively to the electronic controllers for the powe...

Page 71: ...rcuit applications Increased the options for the parameters P25 P32 corresponding to the digital output settings function also available for the outputs on the expansion if the firmware version on the...

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Page 76: ...11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 e mail carel carel com www carel com Agence Agency C 2 SE 030220426 rel 2 1 09 06 2010 CAREL reserves the right to modify the featur...

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