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1. ra repeat the same operation for the top screw phase 2 al apply the front frame phase 3 e relative humidity greater than 90 or where there is condensation e strong vibrations or knocks O O exposure to continuous water sprays exposure to aggressive and polluting atmospheres e g sulphur and a 7 ammonia fumes saline mist smoke so as to avoid corrosion and or O p Ir oxidation at m K x strong magnetic and or radio frequency interference there avoid lo L installing the units near transmitting antennae lt IX x near transmitting antennae and to the elements in general gt e large and rapid fluctuations in the ambient temperature e een e environments where explosives or mixes of flammable gases are present exposure to dust formation of corrosive patina with possible oxidation i Fig 2 c do not over tighten the screws and reduction of insulation To install easy easy compact and easy split make an opening in the panel based on the drilling template 71x29 mm Dismantling using the screws from the front unclip the front frame unscrew the bottom screw at the moment the front panel detaches from the panel keep pressure on the screw and unscrew a further 90 Panel installation using 2 rear brackets Figs 2 a and to make the catch go back into its slot 2 b e repeat for the top screw e
2. Summary table of relationship between parameter A4 and the actuators output alarm light AUX FAN COMP Ad 1 IA z E E Y A4 6 z Y a E A4 7 dor Y Y A4 8 dor Y Y a A4 10 Y Y Y E A4 11 Y Y Y Y Tab 4 p Other alarm parameters A7 digital input alarm delay Sets the delay in minutes for detecting the external alarm when A4 1 7 or 8 For easy split A4 must be 1 7 8 10 11 A8 enable alarm Ed end defrost by timeout The alarm Ed signals the end defrost due to the maximum defrost time dP being reached This can be disabled by setting A8 0 The signal Ed disappears when the next defrost is called Ac Dirty condenser alarm set point Sets the temperature set point above which the dirty condenser alarm CHt is signalled see parameter A4 10 for easy easy compact and A4 13 for easy split 25 AE Dirty condenser alarm differential temperature Sets the temperature value for determining the dirty condenser pre alarm cht interval see parameter A4 10 for easy easy compact and A4 13 for easy split Acd dirty condenser alarm delay Sets the delay in minutes before activating the dirty condenser alarm CHt see parameter A4 10 for easy easy compact and A4 13 for easy split 4 9 Door open closed management Procedure for setting the digital input 1 make sure that the cold room door is fitted with a contact for signalling when the door is opened and cl
3. C F 0 S with 1 amp 2 probes M with 1 amp 2 probes C2 probe 2 offset F 50 0 150 0 C F 0 S with 2 probes M with 2 probes St set point S rl r2 Cr 4 S with 1 amp 2 probes M with 1 amp 2 probes rd control differential F 0 190 CF 2 S with 1 amp 2 probes rl minimum set point value C 50 0 r2 CF 50 S with 1 amp 2 probes M with 1 amp 2 probes r2 maximum set point value C rl 99 SF 90 S with 1 amp 2 probes M with 1 amp 2 probes 3 select direct reverse operation C 0 2 0 S with 1 amp 2 probes co compressor and fan start delay on power up C 0 00 min 0 S with 1 amp 2 probes cl minimum time between consecutive compressor starts C 0 00 min 0 S with 1 amp 2 probes c2 minimum compressor off time 0 00 min 0 S with 1 amp 2 probes c3 minimum compressor on time 0 00 min 0 S with 1 amp 2 probes c4 compressor on time with duty setting E 0 00 min 0 S with 1 amp 2 probes cc continuous cycle duration C 0 5 h 4 S with 1 amp 2 probes c6 temperature alarm bypass after continuous cycle C 0 5 h 2 S with 1 amp 2 probes do type of defrost E 0 4 0 S with 1 amp 2 probes dl interval between defrosts F 0 99 h min dC 8 S with 1 amp 2 probes dt end defrost temperature set point F 50 30 CF 4 S with 2 probes dP maximum defrost duration F 1 99 min s dC 30 S with 1 amp 2 probes d4 defrost when switching the instrument on C 0 0 S with 1 amp 2 probes d5 defrost delay on pow
4. easy easy compact easy split 030220791 rel 3 1 25 01 2010 34 CAREL 5 8 Table of easy split parameters Par Description Type Min Max UOM Def Visibility PS password F 0 200 22 SC 2 probe measurement stability C 1 5 4 S C 3 probe display rate C 0 5 0 SE 4 select probe displayed F 1 3 1 S C 5 select C F 0 0 S C 6 disable decimal point C 0 0 sc C1 probe 1 offset F 50 50 COP 0 sc C2 probe 2 offset F 50 50 COP 0 SE C3__ probe 3 offset E 50 50 CPP 0 S C P select type of probe 0 0 S C S set point F rl r2 CF 4 SE rd differential F 0 9 CF 2 SE r minimum set point value E 50 r2 ChE 50 SE r2 maximum set point value E rl 300 CF 90 SE r3 select direct reverse operation C 0 0 Sc r4 night time set point delta e 50 50 C F 3 S C co compressor and fan start delay on power up C 0 00 min 0 SC C minimum time between consecutive compressor starts E 0 00 min 0 SIE c2 minimum compressor off time C 0 00 min 0 SG c3 minimum compressor on time C 0 00 min 0 Sc c4 compressor on time with duty setting 0 00 min 0 S C CC continuous cycle duration C 0 5 h 4 SE c6 te
5. Note the decimal point is only disabled in relation to the reading shown on the display the calculations performed by the controller remain unchanged 7 enable probe 2 alarm M models only In the thermometer models M fitted with two probes setting 7 1 enables the alarm relating to the second probe E1 4 3 Temperature control The following parameters are used to control the temperature St rl r2 13 r4 and rd St set point r1 minimum value and r2 maximum value of the set point Parameter St determines the desired temperature to be maintained inside the cabinet or cold room set point Parameters r1 minimum value and r2 maximum set the range of temperatures for setting the set point Note the set point can be set by pressing the SET button see par Setting the set point desired temperature value page 16 r3 select direct reverse operation Defines the operating mode of the device e r3 0 direct with defrost Used to request the activation of the compressor when the temperature measured by probe 1 rises above the set point This mode also includes defrost also called cooling mode see Fig 4 a r3 1 direct without defrost Fig 4 a r3 2 reverse without defrost Fig 4 a Used to request the activation of the compressor when the temperature measured by probe 1 falls below the set point This mode does NOT include defrost also called heating mode see Fig 4 a Dir
6. 4 13 Other settings The operation of the device is completed by a series of additional functions such as the assignment of a supervisor serial network address the configuration of the AUX relay the enabling of the keypad and the buzzer HO serial address Assigns the instrument an identification address for connecting to a supervisory or telemaintenance system def HO 1 H1 AUX output configuration Establishes the operating logic of the auxiliary relay in particular defines whether it is used as an alarm output or as an auxiliary output linked to he digital input On easy split models there are also the light and second compressor outputs with or without rotation 0 no function associated with the output 1 1 alarm output norm energised relay de energised with alarm 2 alarm output norm de energised relay energised with alarm 1 3 AUX output related to Dig in easy easy compact A4 6 7 8 easy split A4 6 7 8 10 11 Dig in OPEN AUX de energised Dig in CLOSED AUX energised LED AUX display H1 4 ight output easy split only the light can be switched on pressing the corresponding button from the keypad or when opening the door if the door switch is activated with ight management see parameter Ado H1 5 second compressor output in parallel easy split only he output is activated a few seconds after the activation of he first compressor delay c11 The
7. UL 12A Res 12FLA 72LRA 250Vac 30000 cycles RL3 RL2 EN60730 1 12 2 A 250Vac 100000 cycles N O contact only UL 12A Res 2FLA 12LRA 250Vac 30000 cycles type of probe Std CAREL NTC 10kQ 1 at 25 C Std CAREL NTC HT 50kQ 1 at 25 C connections input output signals screw terminals with cables from 0 5 to 1 5 mm faston terminals recommended cable cross section 2 5 mm2 for current ratings up to 16 A use cables with max operating temperature at least 90 C fully insulated faston terminals with max operating temperature at least 100 C power supply cable cross section 2 5 mm for current ratings up to 16 A and 4 mm for current ratings up to 24 A earth connections see the instructions about power supply connections PJEZ 8 4 without plastic case maximum supply current 24 A PJEZ 8 5 with plastic case maximum supply current 16 A assembly terminal using screws from front panel or with rear brackets power board on models PJEZ 8 5 supplied with plastic case display 3 digit LED display with sign 199 to 199 and decimal point 6 status LEDs Operating conditions PJEZ 8 4 without plastic case PJEZ 8 5 with plastic case 10T60 C for power board 10T50 C for power board 10T60 C for display humidity lt 90 RH non 10T60 C for display humidity lt 90 RH non condensing condensing storage conditions 20T70 C humidity lt 90 RH non conde
8. Unlike the easy and easy compact models the easy split models feature a Separate terminal and power board There are also other differences such as the auxiliary multifunction relay for managing the light output or a second compressor and new software functions The table below highlights the differences and indicates the page showing the related explanation easy easy r easy split topie compact easy split parameter page type of probes connectable selectable by parameter easy split only NTC PTC NTC NTC HT P 9 dedicated relay for the light output O YE H1 4 29 light on off from the keypad defrost only YE H1 4 16 probe display rate function O YE 3 17 curtain switch night time operation with light management O YE A4 4 24 light not managed managed with door switch and evaporator fan off O YE A4 7 10 25 light not managed managed with door switch and evaporator fan and compressor off O YE A4 8 11 25 door open closed management O YE Ado 25 second compressor output in parallel with dedicated relay O YE H1 5 29 second compressor output with two step control with or without rotation O YE H1 7 6 29 second compressor delay O YE c11 19 fan management with compressor off O YE F2 2 F4 ES 27 night time operation with light management O YE A4 4 H1 4 24 year month day of month setting O YE YEr MOn MO 28 disable high temperature alarm when starting O YE 31 maintena
9. F1 evaporator fan control set point F 50 30 CFF 5 C F2 stop evaporator fan if compressor off C 0 1 1 E F3 evaporator fan status during defrost Cc 0 1 E F post dripping time F 0 5 min 1 C HO serial address E 0 207 1 M S with 1 amp 2 probes X Y C H1 AUX output configuration E 0 3 0 M S with 1 amp 2 probes X Y C H2 enable keypad C 0 1 M S with 1 amp 2 probes X Y C H4 disable buzzer C 0 0 M S with 1 amp 2 probes X Y C H5 ID code read only F 0 99 M S with 1 amp 2 probes X Y C EZY rapid parameter set selection Cc 0 4 0 S with 1 amp 2 probes X Y C tEn enable RTC E 0 0 AMO did defrost time band 1st day C 0 days 0 XY CO dih ime band 1st hour Cc 0 23 h 0 XY C E d1 ime band 1st minute 0 59 min 0 MAA E d2d defrost time band 2nd day C 0 1 days 0 XY C E d2h ime band 2nd hour a 0 23 h 0 AA E d2 ime band 2nd minute C 0 59 min 0 X Y C _ d3d defrost time band 3rd day E 0 1 days 0 XY CE d3h ime band 3rd hour E 0 23 h 0 0 d3 ime band 3rd minute E 0 59 min 0 AO d4d defrost time band 4th day E 0 1 days 0 AMC d4h ime band 4th hour C 0 23 h 0 X Y C _ d4 ime band 4th minute E 0 59 min 0 KYCe nOd night time band ON day C 0 days 0 AA S nOh night time band ON hours E 0 23 h 0 ACA nOM night time band ON minutes E 0 59 min 0 KYCE nFd night time band OFF day E 0 days 0 X Y C nFh night time band OFF hours E 0 23 h 0 RCC nFM nighttime band OFF minutes C 0 59 min 0 A A
10. Preliminary configurations Once the electrical connections have been completed simply power up Display the controller to make it operative gt MODE I lo O pr El y E ENE CAREL then recommends to check that the display does not show any alarm signals see par 5 1 Table of alarms and signals on page 31 then set the time and date in the models fitted with RTC see par 4 11 Clock and time band parameters page 28 and finally set the parameters as desired The main parameters are as follows Control parameters S set point Fig 3 f rd set point differential P only easy split select type of probe but function normal operation start up Defrost parameters no ON OEE flash do type of defrost 1 compressor 1 2 on off call ON 2 fan on off call ON dl interval between two defrosts 3 defrost on off call ON dt end defrost temperature 4 auxiliary output output active output not ON dP maximum defrost duration AUX light active 5 clock RTC RTC available RTC not ON ifthe Alarm parameters enabled tEN 1 available or clock is Ad temperature alarm delay and at least one not enabled fitted AL low temperature alarm threshold deviation time band has tEN 0 or no A ER heen set time band set AH high temperature alarm threshold deviation 6 alarm alarm in no alarm in ON A
11. Type Min Max UOM Def Visibility nF night time band OFF hours E 0 23 h 0 SCC nFM night time band OFF minutes C 0 59 min 0 SC AOd AUX time band ON day 0 11 day 0 SCA AOh AUX time band ON hours C 0 23 h 0 SC AOM AUX time band ON minutes E 0 59 min 0 sc AF AUX time band OFF day C 0 11 day 0 SC AFh AUX time band OFF hours C 0 23 h 0 SEP AF AUX time band OFF minutes C 0 59 min 0 sc YEr RTC year 0 99 year 0 SEN on RTC month E 1 12 month 1 sc dMo RTC day of the month Cc 1 31 day 1 S C dAY _ RIC day of the week C 1 7 day 1 sce hr RTC hours 0 23 h 0 sc In RTC minutes C 0 59 min 0 SCE HMP maximum maintenance interval C 0 999 day 0 sc HMd_ days elapsed since last maintenance 0 999 day 0 S C HMr reset maintenance signal and restart HMd F 0 1 0 S C Table 5 e Parameters not visible in models without RTC 5 9 Table of EZY parameter sets easy parameter sets EZY Par Description models S X normal temperature models Y C low temperature EZY 1 EZY 2 EZY 3 EZY 4 EZY 1 EZY 2 EZY 3 EZY 4 4 select probe displayed 1 1 1 1 5 select C F 0 0 0 0 rd control differential 3 0 3 0 50 20 3 0 4 0 5 0 20 r minimum set point value 10 0 15 0 20 0 30 0 30 0 30 0 30 0 30 0 r2 maximum set point value 15 0 20 0 20 0 40 0 20 0 20 0 30 0
12. at the start of a defrost cycle with the controlled output by temperature cannot be connected to an external contact for defrost management d0 0 1 the temperature measured by the probe is greater than the value set for dt the defrost is not performed easy easy compact easy split 030220791 rel 3 1 25 01 2010 20 CAREL In the event of defrost probe failure the controller performs a timed defrost with a duration equal to the value set for dP The same is true if the end defrost set point can not be reached the defrost is stopped after a maximum time equal to the value of dP and the error Ed is displayed if enabled by A8 and stays on until a correct defrost cycle is performed dP maximum defrost duration Determines the maximum duration of the defrost in minutes or seconds see parameter dC When defrost by time is set dO 2 3 4 dP represents the effective duration of the defrost d4 defrost when switching the instrument on Starts a defrost when switching the instrument on d4 1 This has priority over the activation ofthe compressor and the continuous cycle Running a defrost when switching the instrument on may be useful in special situations e g frequent power failures Case 1 the system is subject to frequent power failures n the event of power failures the instrument s internal clock which calculates the interval between two defrosts starting from zero is reset If he frequency of the power f
13. available is already low voltage but not 12 Vac a suitable adapting transformer must be used double insulation between the primary and secondary and definition for surge on the primary to the appropriate level 2000 V for applications in industrial environments as double insulation cannot be guaranteed between the power supply connectors and the relay outputs only use loads powered at safety extra low voltage effective rating up to 42 V 11 The voltage supplied to these terminals see the wiring diagrams must correspond within the specified tolerances to the value shown on the instrument connection label The insulation of the instrument for versions with mains power supply 230 Vac and 115 Vac is reinforced The versions with 12 Vac Vdc power supply on the other hand do not feature such insulation For easy split Refer to the following wiring diagram power supply L N PE use cables with a suitable cross section for the load 2 5 mm for current ratings up to 16 A and 4 mm for current ratings up to 24 A load connection terminate with 6 3 mm female spade contacts cable cross section 2 5 mm for current ratings up to 16 A use cables with max operating temperature at least 90 C spade terminals with max operating temperature at least 100 C internal jumpers for power supply to loads as per the previous point probe and digital input connections with 0 5 to 1 5 mm cables terminal connection us
14. case the defrost is not called e defrost by temperature d0 0 1 and temperature measured by the defrost probe above the end defrost set point dt For the correct and safe use of the easy easy compact and easy split controllers it is essential to program defrost cycles Type of defrost parameter d0 The defrost may be performed by stopping the compressor heater or hot gas In addition it can be managed by temperature using the defrost probe located on the evaporator In any case the defrost will end after a maximum settable safety duration The end defrost for maximum duration alarm Ed parameter A8 can be disabled by time when there is no defrost probe by time with temperature control heater only for a programmable time the defrost output is only activated when the temperature is below the end defrost threshold guaranteeing energy saving and defrosting of the evaporator even in more extreme situations see Fig The defrost ends correctly at the end of the pre set time see parameter dP 4 9 once having reached the set temperature dt When the defrost ends correctly the dripping equal to the time set for O parameter dd and post dripping parameter Fd phases start on d The defrost ends early DER i y gt e from the keypad pressing the DOWN button for 3 s manual end X defrost for easy split H1 must be 4 or pressing UP DOWN
15. confirm the password 4 use the UP and DOWN buttons to scroll the names of the parameters until reaching the parameter tEn 5 press SET to display the value associated with the parameter 6 use the UP and DOWN buttons until reaching the value 1 for enabling the clock 7 press SET to temporarily save the new value and display the parameter again 8 repeat the operation to set the values of the parameters dAY day of the week hr hours Min minutes For easy split also set YEr Mon dMo 9 at the end of the operations press the SET button for more than 3 seconds to permanently save the selected values and exit Setting the time bands Perform the operations from point 1 to point 7 above then select the parameter relating to the required band e g d1d DEFROST ME BAND 1 DAY setting ess SET to display the status of the parameter se the UP and DOWN buttons until reaching the desired value ess SET to temporarily save the new value and return to the previous isplay repeat the operation to set the values of the parameters d1h TIME BAND 1 HOUR setting d1m TIME BAND 1 MINUTES setting at the end of the operations press the SET button for more than 3 seconds to permanently save the selected values and exit QS 0 5 o RTC clock parameters tEn enable RTC tEn 1 RTC enabled YEr easy split only current year Mon easy split only current month dMo easy split only day of the month
16. dAY current day of the week 1 7 Monday to Sunday hr current hour 24 h Min current minutes Example to set the current time and date to 15 07 on Thursday 3 May 2007 set ten 1 YEr 07 Mon 05 dMo 03 easy split only dAY 4 hr 15 Min 7 The controller will save the time and the day ofthe week month and year on easy and easy compact controllers the month and year are ignored Note the instrument does not manage automatic changeover to daylight saving easy easy compact easy split 030220791 rel 3 1 25 01 2010 28 CAREL Parameters for setting up to 4 defrost time bands did d4d Defrost event day setting d1d d4d 0 no defrost event d1d d4d 1 7 Monday to Sunday d1d d4d 8 from Monday to Friday d1d d4d 9 from Monday to Saturday d1d d4d 10 Saturday Sunday d1d d4d 11 every day d1h d4h Defrost event hour setting 24h diM d4M Defrost event minutes setting Example To program a defrost call d1d every Saturday amp Sunday at 19 31 set d1d 10 days d1h 19 hours d1M 31 min dh Important the defrost event only involves a defrost call Whether the defrost is effectively run and the duration ofthe cycle depend on the status of the controller when the call is activated Parameters for setting the night time set point time band nOd Night time set point time band day setting nOd 0 no event set nOd 1 7 Monday to Sunday nOd 8 from Monday to Friday nOd 9 from Monday to Sa
17. e the continuous cycle cc can be performed again e defrosts can be performed the compressor will start after the time set for parameter c2 minimum compressor off time A4 2 Enable defrost contact open not enabled contact closed enabled When A4 2 easy can be connected to an external contact for enabling the defrost this will then be activated only if the contact is closed and after the delay set for parameter d5 If the contact is closed when a defrost in progress the defrost is immediately stopped and the unit resumes normal operation without performing the dripping or post dripping phases The 3 LED starts flashing indicating that the defrost call is still pending awaiting enabling closing of the contact when the defrost restarts the timer dP is set to zero A4 3 Start defrost on closing The defrost call is generated when the digital input switches from open to closed When A4 3 easy can be connected to an external contact for starting the defrost when the contact closes Setting dI 0 no interval between two defrosts and without any time bands enabled closing the external contact will immediately start the defrost This function is useful for running timed defrosts without the RTC on board used to set the defrost time bands To do this simply connect a mechanical or electronic timer to the digital input and set A4 3 to guarantee the defrost cycles A series of units can be connected to the same ti
18. easy compact easy split 030220791 rel 3 1 25 01 2010 EF displayed during operation or on power up Operating parameter reading error See Data errors Ed flashing The last defrost ended after exceeding the maximum duration rather than when reaching the end defrost set point check parameters dt dP and d4 e check the efficiency of the defrost The message disappears when the next defrost ends correctly dF flashing defrost running e this is not an alarm signal but rather a message that the instrument is running a defrost Only shown if d6 0 cht flashing dirty condenser pre alarm check parameters A4 Ac AE and Acd CHt flashing dirty condenser alarm check parameters A4 Ac AE and Acd EtC flashing internal clock error SrC flashing easy split only Maintenance request signal Displayed only if parameter HMPzO 5 3 Data error In certain operating conditions the instrument may detect errors in the data saved These errors may compromise the correct operation of the instrument If the microprocessor detects a data saving error the display shows the message EE If the fault persists the controller needs to be replaced If on the other hand the message disappears it can continue to be used When EE error occurs frequently and or remains for some time the controller should be checked as the original precision may not be guaranteed 5 4 Modifying the parameters Para
19. high temperature alarm is disabled if A4 7 10 the fan is stopped if A4 8 11 the fan and the compressor are stopped if A4 10 11 and if the light output is configured H1 4 the light is activated If the door remains open for a time greater than A7 the controller goes into alarm status he fans and compressor are started if called when restarting the compressor the protection times are observed c parameters he light remains on if an output is configured as the light output H1 4 he auxiliary relay is energised if H1 3 he temperature displayed flashes alternating with dor he buzzer is activated he high temperature alarm is enabled after the delay Ad easy easy compact easy split 030220791 rel 3 1 25 01 2010 26 CAREL Closing the door the first time the controller maintains the previous status the fans and or compressor see parameter A4 remain off the light is kept on if an output is configured as the light output H1 4 he temperature and the alarm icon bell flash t the high temperature alarms remains disabled If after first closing the door remains closed for a time greater than_A7 the controller resumes normal operation the fans and or compressors are switched on if called when the compressor restarts the protection times must be observed c parameters the light remains on ifan output is configured as the light output H1 4 the high
20. if the defrost probe is present recommended d0 0 dl interval between defrosts The defrost is performed periodically at a frequency of every dl in hours or minutes see parameter dC The interval starts counting from the start of the current defrost If the time is equal to 0 dI 0 the defrost is not performed except when activated from the keypad by digital input from the supervisor or by time band During defrosts the temperature alarms are inhibited How to start the defrost from the keypad pressing the DOWN button for 3 s manual defrost for easy split H1 must be 4 If H1 4 the UP and DOWN buttons can be pressed together when H6 1 dt end defrost temperature set point defrost temperature threshold by digital input in the models where fitted setting parameter A4 3 with temp control from the supervisor setting the time bands if RTC available enabled at the end of the interval between two defrosts parameter dl gt 0 e when switching the instrument on parameter d4 1 For the models fitted with end defrost probe this parameter allows an evaporator temperature to be set at which the defrost is stopped the evaporator temperature is measured by the defrost probe The end defrost temperature differential is fixed at 1 C defrost with temperature A Important the easy compact models not having the RTC nor control dO 4 the digital input cannot be set with defrost time bands and If
21. in mode H1 1 2 the alarms that act on the AUX output are LO HI EO IA CHT mode H1 1 is useful for signalling an alarm when a power failure occurs H2 enable keypad Used to prevent the set point and the other operating parameters from being changed when the instrument is located in a place that is accessible to the public H2 0 keypad disabled F parameters read only C parameters modifiable with password no set point modification no manual defrost no continuous cycle no ON OFF H2 1 keypad enabled H2 2 keypad enabled except for ON OFF H4 disable buzzer Setting H4 1 disables the operation of the audible buzzer H5 ID code Display only value this can only be modified via serial connection key or supervisor When set to a positive value values from 0 to 31 are used by CAREL for the basic models if a parameter including the set point is modified from the keypad the value becomes negative This allows any modifications made the parameters compared to the initial settings to be monitored H6 select control associated with UP DOWN buttons easy split only The following values are allowed e H6 0 start stop continuous cycle H6 1 start stop defrost H7 management of fourth relay serial communication easy split only This parameter is used to enable the fourth relay output RL4 In models with four relays management of the fourth relay and serial communi
22. insert the instrument in the opening phase 1 remove the instrument from panel keeping it horizontal e secure the instrument by sliding the brackets in the guides on the instrument until compressing them against the panel phase 2 gt gt 10 a 1 5 oo easy split power board dimensions and assembly Assembly is performed using plastic spacers or plastic turrets The power board is supplied upon fitted in a standard case for panel mounting dimensions 190x140x70 easy gt o 00 k 117 8 5 38 O 103 5 5 pu 99909 er OO Fig 2 a L easy compact easy split F lt a PE Jo el i E Ar a2 0000000000 E lt m N gt ll j RLI RL4 RL3 RL2 zB dd iva c ja Fe eae AOL Daz E 5 Fig 2 b 3 7 Fig 2 d Removing from the panel with brackets e release the instrument by pressing both brackets where marked push A Warnings and sliding it back on the guides the connection cables must guarantee insulation at least up to 90 C spade terminals with max operating temperature at least 100 C if the board is installed in an electrical panel with metal cabinet allow at least 10 mm distance between the cabinet and any point on the Panel installation from the front using screws Fig 2 c board rear edges an
23. menu parameter enter password 22 reset mutes the audible alarm procedure but normal operation l start up buzzer no pressingthabuflanalone pressing with 3 more than 3 s activates pressed together for 1 s displays other buttons deactivates the defrost with 1 activates firmware 1 more than 3 s switch ON pressed together Bene s a OFF with 3 activates deactivates the version deactivates the a A Table 3 d continuous cycle 2 1 s displays sets the set for 1s RESET pressed point current EZY together 2 o than 3 s accesses set and 3 activate Keypad functions for easy and easy compact M models the parameter setting menu parameter enter password 22 reset models with keypad only mutes the audible alarm procedure buzzer A 3 more than 3 s activates pressed together for 1 s displays O deactivates the defrost with 1 activates firmware So deactivates the version continuous cycle li 40 Table 3 b x Fig 3 e but normal operation start up no pressing the button alone 1 more than 3 s switch ON OFF z 2 1 s displays sets the set point z pressed together more than 3 s accesses the parameter activate parameter setting menu enter password 22 reset procedure mutes the audible alarm buzzer 3 rapid selection of probe displayed foris displays firmware version Table 3 e easy easy compact easy split 030220791 rel 3 1 25 01 2010 14 CAREL 3 3 easy split 3 4
24. parameters Ad c6 d8 no alarm message and the buzzer if fitted does not sound alarm IA is signalled multifunction input without the multifunction input generates an alarm when connection of the input and whether this is closed in actually being active the contact opens normal operation the alarm connected to the multifunction input is alarm delay set or parameter programming error 1 if A4 1 not detected 2 the status of digital input A7 the defrost is not activated defrost duration too short dP interval between defrosts dl 0 in this case the defrost is not activated parameters dP and dl and H1 for S models the end defrost temperature is too low orthe evaporator temperature is too high the manual defrost is not activated and the defrost LED flashes compressor protection times set the high temperature alarm is shown after a defrost he alarm delay after defrost is too short or the alarm hreshold is too low parameters dt and d defrost probe parameter d9 select d9 1 parameters d8 and AH the display remains frozen even after the defrost he ambient temperature has not yet reached the set point or alternatively the time d8 has not elapsed wait or reduce d8 after modifying a parameter the controller continues working with the old values he instrument has not updated the old value or alternatively the parameter setting procedure has not been ended correctly by pressing the SET but
25. second compressor observes the protection times cO cl c2 c3 for the first compressor H1 6 second compressor output with two step control without rotation easy split only the second compressor is called when the temperature measured by the room probe deviates by more than half the differential rd 2 from the set point AMB_T St rd St rd 2 St ON cP1 OFF Key AMB_T Control probe CP2 Compressor 2 CPI Compressor 1 rd Differential t time St Set point H1 7 second compressor output with two step control with rotation easy split only The roles of main and secondary compressor alternate following each shutdown so that when next started stopped the output not involved in the previous start stop will be activated deactivated Both the compressors must observe the protection times c0 c1 c2and c3 Examples of operation example 1 REQ1 OFF ON REQ2 OFF cp ON OFF ON CP2 OFF Fig 4 p easy easy compact easy split 030220791 rel 3 1 25 01 2010 example 2 REQ1 REQ2 CP1 CP2 Fig 4 q example 3 N REQ1 9 OFF ON REQ2 OFF cp ON OFF ON CP2 OFF Fig 4 r example 4 REQ1 ON REQ2 CP1 CP2 Fig 4 5 Key REQ1 Compressor 1 call CP1 Compressor 1 REQ2 Compressor 2 call CP2 Compressor 2 t time easy easy compact easy split 030220791 rel 3 1 25 01 2010 30 CAREL Note
26. temperature alarm is enabled after the delay Ad the temperature stops flashing and the alarm icon bell goes off Note assuming the user has already left the cold room and in that case will be able to turn off the light from the outside by pressing the DOWN button or alternatively is still working inside If after first closing the light is switched off manually the user is outside the cold room the controller resumes normal operation without waiting for he door to open a second time the fans and or compressors are switched on if called when the compressor restarts the protection times must be observed c parameters the high temperature alarm is enabled after the delay Ad the temperature stops flashing and the alarm icon bell goes off Opening the door the second time status unchanged Closing the door the second time the fans and or compressors are switched on if called when the compressor restarts the protection times must be observed c parameters the high temperature alarm is enabled after the delay Ad the light is off if an output is configured as the light output H1 4 CAREL 4 10 Evaporator fan management parameters The fan is activated based on the parameter settings and the status of the controller The evaporator fan control temperature is measured by probe 2 connector 10 To know which output is associated with the fan see the wiring diagram for the easy mode
27. the defrost Rapid display of the temperature read by the other probes only available for easy and easy compact thermometer models M Press the DOWN button to scroll the temperatures read by the probes Each time the DOWN button is pressed the display will show the name of the probe Pr1 Pr2 or Pr3 only on the models with 3 inputs and with multifunction input configured as a probe and after 1 s the temperature measured by the selected probe will be displayed To display the other probes press DOWN again To return to the normal display wait 3 s without pressing any buttons exit by timeout easy easy compact easy split 030220791 rel 3 1 25 01 2010 16 CAREL CAREL 4 FUNCTIONS AND PARAMETERS This chapter describes all the functions of the easy easy compact and easy split See Table 1 b for the compatibility of the functions with the model used A Important the easy compact models only display two digits In the range below 99 and above 99 the terminal will display The parameter codes with 3 digits are converted as follows easy easy split easy compact C1 C1 C2 C2 EZY EY Table 4 a While the messages become easy easy split easy compact OFF OF dEF dF Pri P1 Pr2 P2 SEt St Table 4 b 4 1 Temperature probe settings Depending on the models the easy and easy compact controllers feature one or two analogue inputs The easy controller
28. the temperature if fitted and enabled the buzzer and the alarm relay are also activated All the alarms have automatic reset that is they stop when the causes are no longer present except for alarm CHt which has manual reset instrument on off using the UP button or by disconnecting the power supply Pressing the SET button mutes the buzzer while the code displayed and the alarm relay only go off when the causes of the alarm have been resolved The alarm codes are shown in the table below The possible alarm codes are shown in the following table Note in easy split controllers when starting control powering up the controller and or switching from OFF status the high temperature alarm signal is disabled until the first time the compressor stops to avoid false signals The first time the compressor stops indicates that the set temperature has been reached and consequently the high temperature alarm signal is enabled This function is always active alarm buzzer and LED alarm description reset ENABLE ALARM parameters easy easy easy code alarm relay involved compact split EO active O probe 1 error control automatic Y Y Y El not active O probe 2 error defrost automatic d0 0 1 4 FO 1 Y Y Y E2 not active O probe 3 error condenser product automatic easy easy compact A4 10 11 Y Y easy split A4 13 14 IA active O external
29. time in hours that the compressor operates continuously for so as to lower the temperature even below the set point If cc 0 the continuous cycle is not activated The controller exits the continuous cycle procedure after the time set for parameter cc has expired or when reaching the minimum temperature see the minimum temperature alarm parameter AL c6 temperature alarm bypass after continuous cycle This is the time in hours during which all the temperature alarms are deactivated after a continuous cycle If the temperature of the refrigerated unit after the continuous cycle lowers due to inertia below the minimum temperature threshold set point AL the activation of the low temperature alarm is delayed for the time c6 In any case the continuous cycle is deactivated at the temperature set point AL 4 6 Compressor protection The easy easy compact and easy split controllers are fitted with an automatic compressor protection system to avoid continual starts or stops of the unit The protection is based on the times in minutes set for parameters c0 c1 c2 c3 c0 compressor and fan start delay on power up When the controlleris powered up this delays the start ofthe compressor and the evaporator fan see Fig 4 c c1 minimum time between consecutive compressor starts Delay between two consecutive starts of the compressor see Fig 4 d O Note if the maximum number of starts hour allowed is 10 simply set c1 6
30. to ensure this limit is observed as well as c1 also remember that parameter da dripping time stops the compressor and the evaporator fan after a defrost c2 c3 minimum compressor off on time These determine the minimum off time c2 and on time c3 for the compressor The compressor will not be controlled until times c2 and c3 have elapsed see Figs 4 e and 4 f ON O anni a Fig 4 e Key to Figs 4 c 4 f 1 instrument power up 2 compressor call 3 compressor c11 second compressor delay easy split only This parameter determines the delay in the activation ofthe second compressor compared to the main compressor The parameter has no effect on the deactivation of the compressor A Important select the auxiliary output as the second compressor output in parallel H1 5 second compressor with two step control without rotation H1 6 or second compressor with two step control with rotation H1 7 easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL 4 7 Defrost The defrost may be called but not activated in the following cases continuous cycle dripping dd gt 0 post dripping Fd gt 0 compressor protectors off status e disabling from digital input A4 2 e setting the time delay d5 gt 0 for the defrost function when the instrument is switched on d4 1 e direct control mode only without defrost r3 1 or reverse r3 2 in this
31. together l i T 3 s when H6 1 due to an immediate external alarm IA f a due toa dirty condenser alarm CHt f I by setting direct mode only without defrost r3 1 or reverse r3 2 i a e switching off pa e when requested from the supervisor it e from digital input see parameter A4 2 the defrost call remains ON l i pending EN In these cases the early end of the defrost is not followed by dripping i i toa t Fig 4 9 A Important Key e the defrost is only available in direct mode that is when parameters 1 defrost call r3 0 or A4 9 the latter has priority over r3 2 defrost temperature probe e using parameter d0 and according to the model available type of 3 defrost heater defrost to be activated can be selected e the defrost has priority over normal temperature control it may also do type of defrost type of end defrost have priority over the compressor protectors see parameter d9 0 heater by temperature e during the defrost the temperature display can be frozen see 1 hot gas parameter d6 2 heater by time the continuous cycle has priority over the defrost 3 hot gas 4 heater with temperature control Table 4 e Parameters for configuring the defrost N Important on the easy and easy compact models and the easy models without defrost relay defrost can only be performed by stopping the compressor In these cases the defrost may be managed by time recommended d0 2 or temperature
32. 000 cycles UL 12 A Res 10 FLA 60 LRA 240 Vac EN60730 1 10 10 A 250Vac 100000 cycles EN60730 1 10 10 A 250 Vac 16A relay 16Arelay UL 12 A Res 5FLA 30LRA 250 Vac C300 UL 12A resistive 5FLA 30LRA 250Vac 30000 cyc EN60730 1 12 2 A NO NC 10 4 A fino 60 EN60730 1 12 2 A or 10 4 A N O only 250VAC C NO 2 2 A CO 250 Vac 100000 cycles 8Arelay UL 8ARes 2 FLA 12 LRA 250 Vac C300 Type of probe Std CAREL NTC 10 KO at 25 C EN60730 1 8 4 A NO 6 4 A NC 2 2 A CO Std CAREL PTC 985 at 25 C 250 Vac probe type Std CAREL NTC 10 KQ at 25 C Std CAREL PTC 985 Q at 25 C connections mm to 1 5m or with crimp mm Maxim screw terminals for cables with cross sect from 0 5 m Plug in terminals for screw blocks ed contacts cable cross sect up to 2 5 um rated current per terminal 12 A terminal usin brackets assembly g screws from the front or with rear display 3 digit LED display with sign 199 to 999 and decimal point six status LEDs operating conditions 10T50 C humidity lt 90 RH non condensing storage conditions 20170 C humidity lt 90 RH non condensing detection range 50T90 C 58T194 F resolution 0 1 C F front panel index of protection panel installation with IP65 gasket case plastic terminal 81x36x65 mm classification according to protection against electric sh
33. 40 0 3 select direct reverse operation 1 0 2 0 r4 night time set point delta 5 0 5 0 2 0 4 0 C minimum time between consecutive compressor 3 5 0 6 4 5 3 6 starts c2 minimum compressor off time 2 4 0 4 2 3 0 5 do ype of defrost 2 2 0 4 1 2 3 4 d interval between defrosts 6 10 6 12 5 7 10 12 d end defrost temperature set point defrost temperature 5 0 5 0 5 0 5 0 5 0 5 0 5 0 40 hreshold with temp control dP maximum defrost duration 40 40 40 40 20 40 10 50 d6 freeze control temperature display during defrost 1 1 1 1 dc ime base 0 0 0 0 0 0 0 0 AO _ alarm and fan temperature differential 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 AL emperature alarm threshold deviation 20 0 25 0 20 0 20 0 22 0 5 0 8 0 20 0 AH high temperature alarm threshold deviation 20 0 25 0 20 0 20 0 22 0 25 0 20 0 25 0 Ad emperature alarm delay 60 70 60 60 20 40 30 25 A4 3rd input configuration 0 4 0 A7 digital input alarm delay 0 20 30 20 Ac set point dirty condenser alarm 55 0 50 0 70 0 55 0 55 0 55 0 55 0 55 0 AE dirty condenser alarm differential temperature 10 0 8 0 10 0 10 0 10 0 0 0 0 0 10 0 Acd dirty condenser alarm delay 60 40 200 60 60 60 60 60 FO enable evaporator fan control 1 0 0 F1 evaporator fan control set point 5 0 5 0 5 0 5 0 F2 stop evaporator fan if compressor off 1 1 1 F3 evaporator fan status during defrost 1 1 Fd post dripping time 3 4 5 6 Table 5 f Key EZY normal temper
34. O alarm and fan temperature differential progress progress Table 3 h 7 digits three digits with decimal point and range 199 to 999 See parameters 4 5 6 for the type of probe displayed values Note The procedure for modifying the parameters is described in in C F and decimal point Er par 5 4 Modifying the parameters page 32 able 3 Keypad A r 3 5 Functions available from the keypad On and off Switching the instrument ON press UP for more than 3 s when pressing the button the display shows ON Fig 3 9 Switching the instrument OFF press UP for more than 3 s The display shows the message OFF alternating with the temperature measured by but normal operation start up the set probe no pressing the button alone pressing with In off status the following functions are disabled if featured by the other buttons model 1 more than 3 s switch ON pressed compressor control duty setting continuous cycle OFF light H1 4 or defrost together with andar ee y g yes 3 activates EMO deactivates the e fan control continuous alarms LO HI IA cht CHT cycle or defrost door switch see par H6 ez 7 2 1s displays sets the set 2 for 1s RESET pressed easy easy compact A4 7 8 point current EZY together 2 easy split A4 7 8 10 11 more than 3 s accesses set and 3 activate buzzer when available the parameter setting menu parameter z 5 enter password 22 reset Wh
35. ON OFF nput open OFF nput closed ON 6 Direct operation of AUX output when H1 3 nput open AUX de energised nput closed AUX energised 7 Door switch with fan off and light not managed see parameter Ado dor alarm instant A7 0 or delayed A7 gt 0 operation of AUX output H1 3 nput open door open nput closed door closed 8 Door switch with fan and compressor off and light not managed see parameter Ado dor alarm instant A7 0 or delayed A7 gt 0 operation of AUX output H1 3 nput open door open nput closed door closed 9 Direct reverse operating mode Fr3 0 input open direct defrost input closed reverse Fr3 1 2 input open direct input closed reverse 10 Door switch with evaporator fan off and light managed see parameter Ado 11 Door switch with evaporator fan and compressor off and light managed see parameter Ado 12 Select EASY SET from digital input 13 Probe for dirty condenser alarm 14 Product probe Table 4 0 A4 0 1 2 3 see A4 0 1 2 3 for easy easy compact in previous paragraph A4 4 Curtain switch and night time operation See the previous paragraph In easy split models if the light output is configured H1 4 in normal operation the light is on and in night time operation it is off CAREL A4 5 6 see A4 5 6 for easy easy compact in previous paragraph A4 7 Door
36. Od _ AUX time band ON day E 0 1 days 0 AMC AOh _ AUX time band ON hours C 0 23 h 0 XY CS AOM AUX time band ON minutes E 0 59 min 0 AR e w w easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL Par Description Type Min Max UOM Def Parameter visible in models AFd AUX time band OFF day C 0 11 days 0 X Y CS AFh AUX time band OFF hours E 0 23 h 0 AMC AFM AUX time band OFF minutes C 0 59 min 0 XYC 5 dAY RTC day of the week C 1 Z days 1 XY CS hr RTC hours C 0 23 h 0 XY C Min RTC minutes C 0 59 min 0 O de Table 5 c Parameters not visible in models without RTC 5 7 Table of easy compact parameters Par Description Type Min_ Max UOM Def Parameter visible in models PS password F 0 99 22 S with 1 amp 2 probes M with 1 amp 2 probes 2 probe measurement stability E 1 15 4 S with 1 amp 2 probes M with 1 amp 2 probes 4 select probe displayed F 1 2 1 S with_2 probes M with 2 probes 5 select C F C 0 1 0 S with 1 amp 2 probes M with 1 amp 2 probes 6 disable decimal point C 0 1 0 S with 1 2 probes M with 1 amp 2 probes 17 enable probe 2 alarm model M only C 0 1 0 0 M C1 probe 1 offset F 50 0 1500
37. The factory setting is H7 1 which means the fourth relay is enabled To enable connection to the supervisor network 1 power down the controller 2 disconnect the 4 wire cable from the rear of the display 3 connect the display to converter code IROPZ485S0 and this to the RS485 network 4 power up the controller and set H7 0 and the network address for parameter HO To restore the fourth relay output RL4 power down the controller 2 disconnect converter code IROPZ485S0 from the rear of the display 3 connect the 4 wire cable from the power board to the display 4 power up the controller and set H7 1 Warnings e the RS485 converter IROPZ48550 is sensitive to electrostatic discharges and therefore must be handled with extreme care check the technical documents on the CAREL IROPZ485S0 option for he description of the connection methods so as to avoid damaging he instrument suitably fasten the converter so as to avoid disconnections perform the wiring with the power supply disconnected e keep the IROPZ485S0 serial option cables separate from the power wires relay outputs and power supply 13 easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL 3 USER INTERFACE AND START UP 3 1 easy 3 2 easy compact Display Di
38. ailure were in an extreme case greater than he defrost frequency e g a power failure every 8 hours against a defrost every 10 hours the controller would never perform a defrost In this type of situation it is better to activate the defrost when the unit is turned on d4 1 above all if the defrost is controlled by temperature probe on he evaporator so unnecessary defrosts are avoided or at least reduced in duration Case 2 Systems with many refrigeration units n this situation if the defrost on power up is activated d4 1 after a power failure all the units will start a defrost This may cause overloads To avoid this parameter d5 can be exploited which allows a delay to be set before the defrost starts a delay which obviously must be different for each unit Key 2 voltage 1 power up d5 defrost delay on power up or when enabled by digital input Represents the time which must elapse between when the controller is turned on and the start of the defrost The digital input can be used to start a defrost from external contact see parameter A4 3 d5 represents the delay between when the defrost is enabled or called and when it effectively starts The defrost from digital input can be exploited to perform defrosts in real time when is the RTC option is not fitted Simply connect a timer to the multifunction digital input The defrost will be activated when the timer contact is closed n the case wher
39. alarm automatic A4 1 A7 Y Y dOr active O open door alarm automatic easy easy compact A4 7 8 A7 Y Y easy split A4 7 8 10 11 A7 LO active O low temperature alarm automatic AL Ad Y Y Y HI active O high temperature alarm automatic AH Ad Y Y Y EE not active O unit parameter error not possible v v v EF not active O operating parameter error manual Y Y Y Ed not active O defrost ended by timeout on first defrost ended dP dt d4 A8 Y Y Y correctly dF not active OFF defrost running automatic d6 0 Y Y Y cht not active O dirty condenser pre alarm automatic easy easy compact A4 10 Y Y easy split A4 13 CHt active O dirty condenser alarm manual easy easy compact A4 10 Y Y easy split A4 13 EtC not active O clock alarm by setting the time if bands are active Y Y SrC easy not active O maintenance request signal manual HMP HMd HMr Y split only set HMr 1 Table 5 a 5 2 Description of the main signals and alarms LED flashing The activation of the corresponding function is delayed by a timer awaiting an external signal or disabled by another procedure that is already in progress e g if is a continuous cycle in progress and a defrost is called the latter will remain pending until the end of the continuous cycle and the corresponding LED defrost will flash EO steady or flashing control probe error probe not working the probe signal is interrupted or short circuited e probe not co
40. also be configured as a probe There are two outputs for controlling the actuator compressor S and the defrost Models PJEZY and PJEZX differ in that PJEZY has relays that are electrically connected together PJEZX has independent relays C models PJEZC The most complete solution for low temperature ventilated units with three relays for complete control of the compressor fan and defrost functions The three relays are included in the very compact case in the versions with 230 V or 115 V power transformer without compromising the performance or reliability of the product M models PJEZM Solution for simply measuring the temperature Summary table of the functions associated with the models function see easy easy compact easy split par mod mod mod mod S mod M mod S mod M mod mod 2 probes 1 2 probes 1 2 1 2 1 S Cc multifun probe multifun probe prbs probe prbs probe input input EN x lt temperature display temperature measurement in C F Parameter access using password NEN EN x xx RTS SISISIS AISAT SS SISISIS set point modification NN INININEN AINSI AVIAN ASIAN N ESSEN SEN SIS night time set point management do ia un a NIN enable disable direct probe 2 alarm SISISISISIS SISE temperature probe calibration temperature control in DIRECT mode temperature control in REVERSE mode compressor protector
41. ameter only has meaning when F2 2 It defines the time expressed in minutes within the period F4 F5 during which the fans are on without being called F5 fan OFF time with F2 2 easy split only This parameter only has meaning when F2 2 It defines the time expressed in minutes within the period F4 F5 during which the fans are off without being called easy easy compact easy split 030220791 rel 3 1 25 01 2010 4 11 Clock and time band parameters The RTC Real Time Clock not available on the easy compact models is used to manage the defrost function curtain switch night time operation and AUX output in real time The user can enable disable the clock and set the current time using dedicated parameters In particular up to 4 time bands can be set for managing the defrosts one band for managing night time operation and one for activating the AUX output The clock alarm fault EtC is activated only if the clock is effectively used that is has been enabled the time has been set and there is at least one valid time band Setting the clock 1 press the SET button for more than 3 s if there are active alarms first mute the buzzer the display shows the parameter code PS password 2 press the SET button to access the password setting and use the UP and DOWN buttons to scroll the numbers until displaying 22 password to access the configuration parameters 3 press the SET button to
42. ature displayed and not the temperature used for the control functions The update rate decreases as the value of the parameter increases from 1 to 15 Parameter 3 Value 0 disabled 1 fast update 15 slow update Table 4 c Example In the case of bottle coolers typically used in supermarkets when the doors are opened frequently due to the greater thermal inertia of the liquids compared to the air and the fact that the probe is positioned in the air and not directly on the products the instrument measures a temperature that is higher than effective temperature of the soft drinks thus displaying a quite unrealistic temperature Setting parameter 3 to a value other than 0 any abrupt variations in temperature are filtered on the display showing a temperature trend that is closer to the actual trend of the product temperature C1 C2 C3 probe 1 2 3 offset These parameters are used to correct the temperature measured by the probes C1 probe 1 C2 probe 2 and C3 probe 3 with an offset in tenths of a degree The value assigned to this parameter is in fact added to C1 C2 C2 gt 0 or subtracted from C1 C2 C3 lt 0 the temperature measured by the related probe A Important parameter C3 is not available on the easy compact models P select type of probe easy split only Used to select the type of probe used for the measurements P 0 standard NTC 50T90 C P 1 high tem
43. ature low temperature 1 no defrost defrost by hot gas 2 defrost by time automatic night time set point variation from digital input 3 heating output reverse digital input alarm management 4 defrost with temp control d0 4 defrost by temperature d0 4 easy easy compact easy split 030220791 rel 3 1 25 01 2010 36 CAREL easy compact parameter sets EY Par Description S models normal temperature EY 1 EY 2 EY 3 EY 4 4 select probe displayed 1 1 1 5 select C F 0 0 0 0 rd control differential 3 0 3 0 5 0 2 0 rl minimum set point value 10 0 15 0 20 0 30 0 r2 maximum set point value 15 0 20 0 20 0 40 0 13 select direct reverse operation 1 0 2 0 cl minimum time between consecutive compressor starts 3 5 0 6 c2 minimum compressor off time 2 4 0 4 do type of defrost 2 2 0 4 dl interval between defrosts 6 10 6 2 dt end defrost temperature set point 5 0 5 0 5 0 5 0 dP maximum defrost duration 40 40 40 40 d6 freeze control temperature display during defrost 1 1 1 dC time base 0 0 0 0 AO alarm and fan temperature differential 2 0 2 0 20 2 0 AL absolute temperature or deviation for low temperature alarm 20 0 25 0 20 0 20 0 AH __ absolute temperature or deviation for hig
44. ax Serial connector 1 connector for the network of supervisor connection or for the parameter programming ey only on the models where featured Assembly using screws from the front or with rear brackets Display LED display 2 digits plus sign decimal point and compressor icon Keypad 3 membrane buttons Table 6 b The features shown depend on the model Minimum T OFF between two starts must be greater than 1 min The features shown depend on the model Minimum T OFF between two starts must be greater than 1 min only for models PJEZ M S X only for models PJEZ C Y Warning do not run the power cable less than 3 cm from the bottom of the device or the probes for the connections only use copper wires NS gt N wo 39 easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL 6 3 easy split technical specifications power supply 230 Vac 10 15 50 60 Hz 115 Vac 10 15 50 60 Hz power input controller only 7 VA 30 mA at 230 Vac 7 VA 60 mA at 115Vac inputs 2 probe inputs NTC 50T90 C or HT NTC 40T150 C 1 digital input as alternative to third probe relay outputs RL1 EN60730 1 12 10 A 250Vac 100000 cycles UL 16A Res 16FLA 96LRA 250Vac 30000 cycles RL4 EN60730 1 12 10 A 250Vac 100000 cycles
45. c AE 2 see Fig 4 1 easy continues normal operation automatic reset if the temperature measured by probe 3 falls below Ac AE e cht is shown on the display alternating with the current emperature CHt dirty condenser alarm e indicates that the temperature set point Ac has been exceeded see Fig 4 1 the delay time Acd has elapsed easy stops all functions the buzzer sounds to mute this press SET or to disable deactivate set H4 1 CHt is shown on the display alternating with cht and the current emperature A Important the CHt alarm see par 5 1 Table of alarms and signals on page 31 can only be reset manually or alternatively by switching the controller off pressing UP for 3 s or powering down on power up if the temperature is still above the Ac the alarm will go off again AC AE 2 Key 1 condensing temperature 2 cht pre alarm display only automatic reset 3 CHt alarm and refrigeration OFF manual reset easy easy compact easy split 030220791 rel 3 1 25 01 2010 24 2 Enable defrost nput open disabled nput closed enabled 3 Start defrost when closing FOR MODEL M select probe displayed nput open probe 1 nput closed probe 2 4 Curtain switch or night time operation nput open normal set point and light on H1 4 nput closed night time set point r4 and light off H1 4 5 Remote
46. cation are mutually exclusive H7 0 fourth relay disabled and serial communication enabled H7 1 fourth relay enabled and serial communication disabled see paragraph 2 3 Wiring diagram for multiple units page 13 PS password Protection code for modifying the configuration parameters default 22 The value of the password can be customised from the supervisor HMP Maximum maintenance interval easy split only This function requires the internal clock RTC to be enabled tEn 1 If HMP 0 the maintenance request is deactivated Parameter HMP expressed in days is used to set the maximum time interval after which the controller generates a maintenance request the counter HMd has exceeded the threshold HMP which involves a message shown on the display SrC and the alarm icon on The signal can be deactivated by setting parameter HMr 1 from the keypad or supervisor This operation saves the current date and restarts the counter HMd HMd Days elapsed since last maintenance easy split only Read only parameter See the explanation of parameter HMP HMr reset maintenance signal and restart HMd easy split only If set to 1 this deactivates the signal SrC and restarts the counter HMd Operation available from the keypad and supervisor CAREL 5 TABLES OF ALARMS AND PARAMETERS 5 1 Table of alarms and signals When an alarm is activated the display shows the corresponding message that flashes alternating with
47. compressor times set by parameters c1 c2 c3 are always observed Table 4 d CAREL Duty setting and defrost f the control probe error occurs when the controller is in defrost mode he function is not stopped but rather is completed as required in addition the defrost can still be performed when called During the defrost the duty setting timer is not stopped but rather keeps counting he ON and OFF times Duty setting and continuous cycle fthe continuous cycle is operating the controller instantly exits this status and activates duty setting also for safety reasons given that during the continuous cycle the low temperature alarm is disabled To re activate continuous cycle operation the ambient probe fault must be resolved Ifthe probe erroris no longer present the unit returns to normal operation The compressor again takes on the logic of the control respecting the times c1 C2 c3 4 5 Continuous cycle The continuous cycle is used to maintain refrigeration continuously active regardless of the temperature inside the unit The function is used to rapidly lower the product temperature even below the set point for example after filling the cabinets In this phase the temperature may fall below the set point To activate or deactivate the continuous cycle from the keypad see paragraph 3 5 the display shows cc and the icon flashes 2 flashes pause cc continuous cycle duration This represents the
48. ct models PJEZS N P controller and PJEZM N P thermometer only easy split models PJEZ 8 controllers with one relay used for the light output Models and features S models PJEZS The ideal solution for the management of static refrigeration units that is without fan on the evaporator operating at normal temperature above 0 C This model in fact performs the functions of thermometer displaying the temperature of the unit and electronic thermostat activating the compressor or the solenoid valve in the case of multiplexed units so as to maintain the required temperature In addition it features compressor protection algorithms and automatic defrost function by shutting down the compressor Table 1 a easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL X and Y models PJEZX PJEZY These are designed for the management of static units operating at low temperature that is below 0 C which require active defrost using electric heaters or the injection of hot gas The PJEZ Y X in fact as well as working as a thermometer and a thermostat like the PJEZS also manages the defrost actuator The frequency and duration of the defrost can be set The end defrost can occur according to the temperature reached connecting a probe to the evaporator or by time In addition these models feature two probe inputs for the control probe room the defrost probe and a digital input this can
49. ct power from the instrument reconnect power while holding the SET and DOWN buttons e the display will show the message CF e after a few seconds the instrument starts operating with the default configuration Any different parameter settings will need to be updated CAREL 5 6 Table of easy parameters Par Description Type Min Max UOM Def Parameter visible in models PS password F 0 200 22 S with 1 amp 2 probes X Y C 2 probe measurement stability C 1 15 4 S with 1 amp 2 probes X Y C 4 select probe displayed F 1 3 1 ZS with 2 probes X Y C 5 select C F E oC VICE 0 S with 1 amp 2 probes X Y C 6 disable decimal point 0 1 0 S with 1 amp 2 probes X Y C 17 enable probe 2 alarm model M only C 0 1 0 101 probe 1 offset F 50 0 1500 CC F 0 S with 1 amp 2 probes X Y C2 probe 2 offset F 50 0 1500 CF 0 S with 2 probes X Y 3 probe 3 offset F 50 0 1500 C F 0 S with 2 probes X Y S set point S rl r2 CHF 4 S with 1 amp 2 probes X Y C rd control differential F 0 190 C F 2 S with 1 am
50. d us s Y Digit display 199 999 199 999 Decimal point Y Display in C or F Y LED display O W S y Xau amp Defrost by stopping the compressor heater hot gas heater with temperature control Duty setting function KISIS SA AE SS SSIS SSS Continuous cycle function Relay outputs O RK aux OR Max Y Up to two analogue inpu s for NTC or PTC probes Up to two analogue inpu s for NTC NTC HT probes Multifunction analogue or digital input n the models with at least 2 probes display second third probe nput for CAREL IROPZKEY programming key nput for external CAREL IROPZ485 connector RS485 network SNS Buzzer audible alarm signals NIN INN INEC Fixed or removable terminals Fastening from rear or front Easy Set rapid instrument configuration selection DIES ES ESENENENENE SISSE SISE Check that this is available on the model in question A Important each of the features should be checked for the model in question 1 2 Models The easy and easy compact controllers differ as regards operation and he number inputs and outputs easy split models feature a separate erminal and power board easy models PJEZS 0 1 6 7 PJEZ X Y PJEZC controllers and PJEZM 0 1 6 7 hermometer only easy compa
51. d assembly holes the thickness of the fastening panel must not exceed 3 mm the probe and digital input connections must be less than 10 m long remove the front frame and make sure that the two catches are in place adopt suitable measures to separate the cables for compliance with these must not protrude from the outline of the drilling template If immunity standards necessary unscrew the two screws Do not unscrew excessively the e suitably fasten the output connection cables to avoid contact with screws must not be detached from the front panel phase 1 extra low voltage components e insert the instrument in the opening in the panel and hold it in position by the centre of the front panel phase 1 using the screwdriver tighten the bottom screw 90 the catch must come out ofits slot and click onto the panel then tighten until the front panel is secure Do not over tighten when the front panel is secured blocks simply make another Y turn to compress the gasket If the catch does not click onto the panel unscrew the screw applying pressure at easy easy compact easy split 030220791 rel 3 1 25 01 2010 10 CAREL 2 2 Electrical connections A Warnings the electrical connections must only be completed by a qualified electrician a power supply other than the type specified may seriously damage the system on easy split models supplied with plastic case given the high maximum power supply current 16 A
52. e dor alarm at the end of the pre alarm A7 or d8 the fan resumes normal operation the display will show dor alternating with the temperature the high temperature alarms are enabled e the buzzer sounds to mute this press SET or to disable set H4 1 if the auxiliary AUX output is linked to the digital input H1 3 the auxiliary relay will be activated Example Setting A4 7 and A7 10 on a cold room with door contact when the door is opened the LED and the temperature will flash on the display for 10 minutes excluding the compressor LED and the fan will stop After 10 minutes if the door is still open the fan will resume normal operation and the display will show the dor signal alternating with the temperature value displayed easy easy compact easy split 030220791 rel 3 1 25 01 2010 Easy split In easy split models the algorithm for managing the door depends on the type of unit selected according to parameter Ado and the setting of parameter A4 Ado 0 display case Opening the door When opening the door if parameter A7 or d8 0 the controller goes into pre alarm status the temperature displayed and the alarm icon bell flash the high temperature alarm is disabled if A4 7 10 the fan is stopped if A4 8 11 the fan and the compressor are stopped if A4 10 11 and if the light output is configured H1 4 the light is on If the door remains open fo
53. e more than unit is connected to the same timer it is recommended to set parameter d5 to delay the defrosts to a different ime for each unit Furthermore to avoid unnecessary defrosts controlled by the instrument s internal clock it is suggested to set parameter dl 0 only manual defrosts from the keypad or multifunction contact or to set dl to a value which is greater than the maximum set interval 21 A4 Meaning d5 3 start defrost on closing delay between call and effective start Table 4 f d6 freeze control temperature display during defrost This function locks the display of the ambient temperature during the defrost cycle at the last value read before the current defrost d6 1 d6 0 display the message dF alternating with the temperature measured by the control probe d6 1 freeze the display on the last temperature measured before the defrost The display normally returns when the measurement first reaches the set point or in any case after the set alarm bypass time after defrost parameter d8 The freeze mode is also valid for the display of the second and third probe if enabled parameter 4 dd dripping time This parameter forces the compressor and the evaporator fans off after a defrost in order to allow the evaporator to drip The value of this parameter indicates the number of minutes the compressor and fan are off If dd 0 no dripping is set therefore at end defrost the c
54. e operation is specified 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 level of technology requires setup configuration programming commissioning to be able to operate in he best possible way for the specific application The failure to complete such operations which are required indicated in the user manual may cause the final product to malfunction CAREL accepts no liability in such cases Only qualified personnel may install or carry out technical service on the product The customer must only use the product in the manner described in the documentation relating to the product n addition to observing any further warnings described in this manual the ollowing warnings must be heeded for all CAREL products prevent the electronic circuits from getting wet Rain humidity and all ypes of liquids or condensate contain corrosive minerals that may damage he electronic circuits In any case the product should be used or stored in environments that comply with the temperature and humidity limits specified in the manual do not install the device in particularly hot environments Too high emperatures may reduce the life of electronic devices damage them and deform or melt the plastic parts In any case the product should be used or stored in environments that comply with the temperature and humidity imits specifi
55. e parameter dC 1 can be useful to test the operation of the defrost function with reduced times manage air driers The defrost cycle thus becomes the condensate drain cycle which must occur at close intervals minutes and for very brief durations seconds A Important this parameter should not be used dC 1 if the defrost requires the activation of the compressor hot gas and when d9 1 as otherwise the compressor may be damaged due to a number high of consecutive starts 4 8 Alarm parameters The alarms can be set as regards the threshold type and activation delays When an alarm occurs the unit may stop normal operation and warn that the alarm situation has occurred based on the type of alarm AO alarm and fan temperature differential This represents the differential used to activate the high and low temperature alarms AH AL and for the management of the fan In the event of an alarm as seen in the figure the value of AO determines the actual activation of the temperature alarms The value of AO negative or positive defines the nature of alarms Al and AH absolute or relative respectively in detail AO lt 0 AL and AH expressed as absolutes AO gt 0 AL and AH expressed relative to the set point St or St r4 in night time operation lt gt lt gt set point Fig 4 j Key 1 low temperature alarm 2 high temperature alarm AL absolute or relative te
56. easy easy compact easy split electronic digital thermostats with defrost control End User manual CAREL LEGGI E CONSERVA gt QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS a NO POWER po eso gt CABLES Y TOGETHER READ CAREFULLY IN THE TEXT Integrated Control Solutions amp Energy Savings CAREL WARNINGS CAREL bases the development of its products on decades of experience in HVAC on the continuous investments in technological innovations to products procedures and strict quality processes with in circuit and functional testing on 100 of its products and on the most innovative production technology available on the market CAREL and its subsidiaries nonetheless cannot guarantee that all the aspects of the product and the software included with the product respond to the requirements of the fina application despite the product being developed according to start of the art techniques The customer manufacturer developer or installer of the fina equipment accepts all liability and risk relating to the configuration of the product in order to reach the expected results in relation to the specific fina installation and or equipment CAREL may based on specific agreements acts as a consultant for the positive commissioning of the final unit application however in no case does it accept liability for the correct operation of the fina equipment system The CAREL product is a state of the art device whos
57. ect mode cooling Reverse mode heating O gt 0 Fig 4 a gt 0 lt gt set point rd T set point gt rd Key 1 compressor request 2 probe 1 A Important the operating mode can also be set by external contact connected to the multifunction digital input parameter A4 9 In this case the contact controls operation direct reverse with priority over parameter r3 easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL r4 night time set point delta Value that automatically increases the set point temperature during the night time operation time bands r4 0 night time set point St r4 gt 0 night time set point St r4 Important 1 toenable night time operation not only does r4 need to be set gt 0 but the digital input must also be enabled and configured see parameter A4 4 curtain switch night time operation or a night time time band enables see par 4 11 Clock and time band parameters page 28 2 night time operation does not necessarily mean at night but rather the time bands in which the value of the set point is modified This usually corresponds to the period in which the refrigerated cabinet is not used shop closed and when the curtain is down rd Control differential Value that is added to or subtracted from in reverse mode the temperature set point rd low values more precise temperature control high com
58. ed in the manual do not attempt to open the device in any way other than described in the manual donot drop hit or shake the device as the internal circuits and mechanisms may be irreparably damaged do not use corrosive chemicals solvents or aggressive detergents to clean the device do not use the product for applications other than those specified in the technical manual All of the above suggestions likewise apply to the controllers serial boards programming keys or any other accessory in the CAREL product portfolio CAREL adopts a policy of continual development Consequently CAREL reserves the right to make changes and improvements to any produc described in this document without prior warning The technical specifications shown in the manual may be changed withou prior warning The liability of CAREL in relation to its products is specified inthe CAREL genera contract conditions available on the website www carel com and or by specific agreements with customers specifically to the extent where allowed by applicable legislation in no case will CAREL its employees or subsidiaries be liable for any lost earnings or sales losses of data and information costs o replacement goods or services damage to things or people downtime or any direct indirect incidental actual punitive exemplary special or consequentia damage of any kind whatsoever whether contractual extra contractual or due to neglige
59. er up or when enabled by digital input C 0 99 min 0 S with 1 amp 2 probes d6 freeze control temperature display during defrost C 0 1 S with 1 amp 2 probes dd dripping time F 0 5 min 2 S with 1 amp 2 probes d8 alarm bypass time after defrost F 0 5 h 1 S with 1 amp 2 probes d9 defrost priority over compressor protectors C 0 5 0 S with 1 amp 2 probes d defrost probe reading 2 F GF S with 2 probes dc time base 0 0 S with 1 amp 2 probes AO alarm and fan temperature differential E 20 20 _ C F 2 S with 1 amp 2 probes AL absolute relative temperature for low temperature alarm F 50 99 C F 0 S with 1 amp 2 probes AH absolute relative temperature for high temperature alarm F 50 99 C F 0 S with 1 amp 2 probes Ad temperature alarm delay C 0 99 min 0 S with 1 2 probes A8 enable alarm Ed end defrost by timeout C 0 0 S with 2 probes HO serial address C 0 207 1 S with 1 amp 2 probes M with 1 amp 2 probes H1 AUX output configuration C 0 2 0 S with 1 amp 2 probes M with 1 amp 2 probes H2 enable keypad C 0 2 1 S with 1 amp 2 probes M with 1 amp 2 probes H5 ID code read only F 1 199 0 S with 1 amp 2 probes M with 1 amp 2 probes EY rapid parameter set selection E 0 4 0 S with 1 amp 2 probes Table 5 d Warning the easy compact models only display two digits If the range is below 99 and above 99 the terminal will display
60. gital input C 0 99 min 0 S with 1 amp 2 probes X Y C d6 reeze control temperature display during defrost E 0 1 1 S with 1 amp 2 probes X Y dd dripping time F 0 15 min 2 S with 1 amp 2 probes X Y C d8 alarm bypass time after defrost F 0 5 h 1 S with 1 amp 2 probes X Y C d9 defrost priority over compressor protectors 0 1 0 S with 1 amp 2 probes X Y C d defrost probe reading 2 F CHF S with 2 probes X Y C dc time base 0 0 S with 1 amp 2 probes X Y C AO alarm and fan temperature differential C 20 20 0 C F 2 S with 1 amp 2 probes X Y C AL absolute relative temperature for low temperature alarm F 50 250 CHF 0 S with 1 amp 2 probes X Y C AH absolute relative temperature for high temperature alarm F 50 250 C F 0 S with 1 amp 2 probes X Y C Ad temperature alarm delay C 0 199 min 0 S with 1 amp 2 probes X Y A4 3rd input configuration Cc 0 11 0 S with 2 probes X Y A7 digital input alarm delay C 0 199 min 0 S with 2 probes X Y A8 enable alarm Ed end defrost by timeout E 0 1 0 S with 2 probes X Y C Ac set point dirty condenser alarm E 50 250 C F 70 S with 2 probes X Y AE dirty condenser alarm differential temperature C 0 1 20 0 C F 5 0 S with 2 probes X Y C Acd dirty condenser alarm delay C 0 250 min 0 S with 2 probes X Y FO enable evaporator fan control C 0 0 C
61. h temperature alarm 20 0 25 0 20 0 20 0 Ad temperature alarm delay 60 70 60 60 Table 5 g Key EY normal temperature 1 no defrost 2 defrost by time 3 heating output reverse 4 defrost with temp control dO 4 easy split parameter sets EZY Par Description models S X normal temperature models Y C low temperature EZY 1 EZY 2 EZY 3 EZY 4 EZY 1 EZY 2 EZY 3 EZY 4 4 select probe displayed 1 1 1 1 5 select C F 0 0 0 0 rd control differential 3 0 3 0 5 0 20 3 0 4 0 5 0 2 0 id minimum set point value 10 0 15 0 20 0 30 0 30 0 30 0 30 0 30 0 r2 maximum set point value 15 0 20 0 20 0 40 0 20 0 20 0 30 0 40 0 13 select direct reverse operation 1 0 2 0 r4 night time set point delta 5 0 5 0 2 0 4 0 minimum time between consecutive compressor 3 5 0 6 4 5 3 6 starts c2 minimum compressor off time 2 4 0 4 2 3 0 5 do ype of defrost 2 2 0 4 1 2 3 4 d interval between defrosts 6 10 6 12 5 7 0 12 d end defrost temperature set point defrost temperature 5 0 5 0 5 0 5 0 5 0 5 0 5 0 4 0 hreshold with temp control dP maximum defrost duration 40 40 40 40 20 40 0 50 d6 reeze control temperature display during defrost 1 1 1 1 dc ime base 0 0 0 0 0 0 0 0 AO alarm and fan temperature differential 20 2 0 20 2 0 2 0 20 20 2 0 AL emperature alarm threshold deviation 20 0 25 0 20 0 20 0 22 0 15 0 8 0 20 0 AH high temperature alarm threshold deviation 20 0 25 0 20 0 20 0 22 0 25 0 20 0 25 0 Ad e
62. ile the following are enabled mutes the audible alarm procedure e temperature display alternating with the message OFF buzzer parameter display and setting 3 more than 3 s activates pressed for 1 s displays alarms EO E1 E2 deactivates light H1 4 or together with firmware A ae tte es diaz kit ake doa activates version the internal timer relating to parameter dl is updated If dl expires in deactivates the OFF status a defrost is performed when restarting continuous auxiliary relay management only in the following configurations Es or AS 1 1 2 E0 alarm only see par H6 A Table 3 g 1 3 A4 6 15 1 4 easy split only Note when exiting OFF status the following settings are set to zero that is are not saved prior to OFF evaporator fan alarm hysteresis and management A0 temperature control hysteresis rd cht pre alarm hysteresis AE In addition the delays are set to zero for the display of the temperature alarms Ad d8 c6 dripping dd and post dripping Fd easy easy compact easy split 030220791 rel 3 1 25 01 2010 Warnings e when first connected easy is already on and ready to be used the instrument can be switched on from a supervisor PC and via an external contact setting A4 5 The latter has priority over the other modes Set point setting desired temperature value The easy easy compact and easy split devices c
63. ing specified cables easy wiring diagrams PJEZ S X NTC PTC PROBES 1 5 6 7 819 Ti 11 l at ww eh ls um Hsia O une PJEZ S X Compressor relay 2HP NTC PTC PROBES 230Vacor lt 115 Vac or 12 Vac Vdc PJEZ C Y o NTC PTC KEY E PROBES P29 5 1 2 3 4 5 8 o 10111 S dal 230Vacor 115Vacor L 12 Vac Vdc N PJEZ M NTC PTC PROBES oa Pea o Ll N g 230Vacor lt 115Vac or 12 Vac Vdc Fig 2 e easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL easy compact wiring diagrams PJEZS 0 PJEZS E PJEZS 1 NTC PROBES NTC PROBES pan 7 N Sn y PJEZM N 0 PJEZM N E PJEZM N 1 NTC PROBES NTC PROBES IT i N LON T 12V PJEZM P 0 PJEZM P E PJEZM P 1 NTC PROBES N SE NTC PROBES TsTe Aux don Fig 2 f easy split wiring diagram Displa pay gt 0 Interface SERIAL PROG up to 5m AMB T DEF T PROBE Digital Input Connessioni interne di alimentazione consigliate az Suggested inside power connections Power Supply 115 230 Vac depending on the model 24A max 2 relays e 4 relays O Fig 2 g For codes PJEZ 8 5 the temperature range is 10T50 C and the maximum current is 16 A See the table of technical specifications recommended internal powe
64. int F 50 300 CF 5 C F2 stop evaporator fan if compressor off 0 2 F3 evaporator fan status during defrost C 0 E F post dripping time F 0 5 min C F4 fan ON time when F2 2 E 0 00 min 5 E FS fan OFF time when F2 2 C 0 00 min 0 E HO serial address E 0 207 SE H1 AUX output configuration C 0 E 4 SC H2 enable keypad C 0 2 SE H4 disable buzzer E 0 0 SE H5 ID code read only F 1 99 0 sc H6 select control associated with UP DOWN buttons E 0 SE H7 management of fourth relay serial communication C 0 C EZY rapid parameter set selection C 0 4 0 S C En enable RTC E 0 0 SEE did defrost time band 1st day C 0 day 0 sc dih ime band 1st hour E 0 23 h 0 SEE d1 ime band 1st minutes C 0 59 min 0 STE d2d defrost time band 2nd day C 0 day 0 see d2h ime band 2nd hours E 0 23 h 0 sch d2 ime band 2nd minutes C 0 59 min 0 sc d3d defrost time band 3rd day E 0 day 0 SEA d3h ime band 3rd hours C 0 23 h 0 sce d3 ime band 3rd minutes E 0 59 min 0 SON d4d defrost time band 4th day E 0 day 0 SOI d4h ime band 4th hours C 0 23 h 0 sc d4 ime band 4th minutes E 0 59 min 0 SEE nOd nighttime band ON day C 0 day 0 SCH nOh nighttime band ON hours E 0 23 h 0 SE nOM night time band ON minutes E 0 59 min 0 sch nFd night time band OFF day C 0 day 0 sce 35 easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL Par Description
65. l used see par 2 2 Electrical connections page 11 Important these parameters are not available in the compact models In normal operation the evaporator fan can be managed as follows always on FO 0 on according to the evaporator temperature FO 1 F1 off when the compressor is off F2 1 e activated in cyclical on off mode when the compressor is off easy split only During defrost the status of the evaporator fan is determined by parameter F3 controlled according to FO F3 0 off F3 1 The fan remains off during the dripping period if parameter dd 0 e during the post dripping period if parameter Fd 0 fora time equal to c0 after instrument power on if parameter c0z0 FO enable evaporator fan control FO 0 the fan is on FO 1 the fan is controlled based on a set point see parameter F1 If the evaporator probe is faulty the fan operates F1 evaporator fan control set point The controller starts the fans only when the temperature of the evaporator is below the value F1 AO F1 is the real temperature value and not the deviation from the set point Once off the fans start again when the difference between the probe reading and the set point is equal to A0 where AO is the fan controller differential When FO 1 evaporator temperature lt F1 AO the fan is ON evaporator temperature gt F1 the fan is off evap temp Fig 4 m F2 stop evapora
66. mer In this case to prevent all the defrosts from starting at the same time set parameter d5 to different times for each unit connected see Fig 4 k In models PJEZM this is used to select the probe whose value is displayed by the instrument contact open probe 1 contact closed probe 2 Key 1 defrost call 2 open 3 closed A4 4 Curtain switch and night time operation contact open curtain raised normal operation contact closed curtain lowered and night time operation When A4 4 easy can be connected to an external contact for managing the opening and the closing of the curtain on the refrigerated cabinet and activating night time operation A Important 3 when the contact is closed the temperature set point becomes the night time setting and consequently the value of st is increased direct mode or decreased reverse mode by the value of r4 4 night time operation does not necessarily mean at night but rather the time bands in which the value of the set point is modified This usually corresponds to the period in which the refrigerated cabinet is not used shop closed and when the curtain is down Contact Operation Operating mode Set point open normal direct reverse St closed night time direct St r4 reverse St r4 Table 4 k A4 5 Remote ON OFF contact open controller off contact closed controller on When A4 5 easy can be connected to an e
67. meter navigation The operating parameters modifiable using the keypad are divided into two types frequent type F and configuration type C Access to the latter is protected by password default 22 to prevent accidental or unauthorised modifications Accessing the type F parameters press the SET button for more than 3 s if there are active alarms mute the buzzer The display shows the parameter code PS password use the UP and DOWN buttons to scroll the parameters The LED corresponding to the category of parameters will be on see Table 5 b press SET to display the value associated with the parameter e increase or decrease the value using the UP or DOWN button respectively press SET to temporarily save the new value and display the parameter again repeat the procedure for any other parameters that need to be modified e press the SET button for more than 3 s to permanently save the parameters and exit the parameter setting procedure easy easy compact easy split 030220791 rel 3 1 25 01 2010 32 CAREL Accessing the type C parameters press the SET button for more than 3 s if there are active alarms mute the buzzer the display shows the parameter code PS password press the SET button to access the password setting e use the UP and DOWN buttons to scroll the numbers until displaying 22 password to access the parameters press the SET button to confirm the password e u
68. mpatible with the instrument The alarm signal EO is steady if it is the only active alarm the temperature value is not displayed while it flashes if other alarms are active or the second probe is displayed E1 flashing evaporator probe or food conservation probe error probe not working the probe signal is interrupted or short circuited probe not compatible with the instrument E2 flashing condenser probe or food conservation probe error probe not working the probe signal is interrupted or short circuited probe not compatible with the instrument 31 IA flashing immediate or delayed alarm from multifunction digital input e check the multifunction input and parameters A4 and A7 dOr flashing open door alarm e check the multifunction input and parameters A4 and A7 LO flashing low temperature alarm The probe has measured a temperature lower than the set point by a value that exceeds parameter AL e check parameters AL Ad and AO The alarm is automatically reset when the temperature returns within the set limits see parameter AL HI flashing high temperature alarm The probe has measured a temperature higher than the set point by a value that exceeds parameter AH e check parameters AH Ad and AO The alarm is automatically reset when the temperature returns within the set limits see parameter AH EE displayed during operation or on power up unit parameter reading error See Data errors easy
69. mperature alarm bypass after continuous cycle 0 5 h 2 S C cll second compressor delay 0 250 S 4 S C do type of defrost C 0 4 0 S C d interval between defrosts F 0 99 h min 8 Sc see dC d end defrost temperature set point defrost temperature threshold with temp control F 50 300 C F 4 S C dP maximum defrost duration F 1 99 min s 30 SE d4 defrost when switching the instrument on C 0 0 Sc d5 defrost delay on power up or when enabled by digital input C 0 99 min 0 S C d6 freeze control temperature display during defrost e 0 S C dd dripping time F 0 5 min 2 SE d8 alarm bypass time after defrost F 0 5 h S C d9 defrost priority over compressor protectors C 0 0 Sc d defrost probe reading F CF SC dc time base 0 0 SE AO alarm and fan temperature differential E 20 20 C F 2 SE AL absolute relative temperature for low temperature alarm F 50 300 CFF 0 S C AH absolute relative temperature for high temperature alarm F 50 300 CF 0 SE Ad temperature alarm delay 0 99 min 0 S C A4 3rd input configuration 0 4 0 S C A7 digital alarm input delay C 0 99 min 0 SE A8 enable alarm Ed end defrost by timeout 0 0 sE Ac dirty condenser alarm set point C 50 300 CF 70 S C AE dirty condenser alarm differential temperature 0 1 20 0 BCE 5 S C Acd dirty condenser alarm delay 0 250 min 0 S C Ado _ door management algorithm 0 0 S C FO enable evaporator fan control C 0 0 Cc Fl evaporator fan control set po
70. mperature alarm delay 60 70 60 60 20 40 30 25 A4 3rd input configuration 0 4 0 A7 digital input alarm delay z 0 20 30 20 Ac set point dirty condenser alarm 55 0 50 0 70 0 55 0 55 0 55 0 55 0 55 0 AE dirty condenser alarm differential temperature 10 0 8 0 10 0 10 0 10 0 10 0 0 0 10 0 Acd dirty condenser alarm delay 60 40 200 60 60 60 60 60 FO enable evaporator fan control 1 0 0 A evaporator fan control set point 5 0 5 0 5 0 5 0 F2 stop evaporator fan if compressor off 1 1 1 F3 evaporator fan status during defrost 1 1 1 Fd post dripping time 3 4 5 6 Table 5 h Key EZY normal temperature low temperature 1 no defrost defrost by hot gas 2 defrost by time automatic night time set point variation from digital input 3 heating output reverse digital input alarm management 4 defrost with temp control d0 4 defrost by temperature dO 4 37 easy easy compact easy split 030220791 rel 3 1 25 01 2010 5 10 Troubleshooting occur on the various models The most frequent causes and corresponding chec The following table shows a number of anomalous situations that may s are described CAREL problem cause checks the compressor does not start signalled by the compressor delay set parameters c0 c1 and c2 and dd compressor LED flashing e defrost post dripping in progress the temperature is over the set limits but there is alarm delay set
71. mperature for low temperature alarm Determines the activation threshold of the low temperature alarm AL Low temperature Low temperature Alarm disabled alarm normal if alarm night time if if absolute temp probe 1 lt Al temp probe 1 lt AlL AL 50 relative temp probe 1 lt temp probe 1 lt St Al 0 St AL r4 AL Table 4 h easy easy compact easy split 030220791 rel 3 1 25 01 2010 22 CAREL AH absolute or relative temperature for high temperature alarm Determines the activation threshold of the high temperature alarm AH High temperature Hightemperature Alarm disabled alarm normal if alarm night time if if absolute temp probe 1 gt AH_ temp probe 1 gt AH AH 150 relative Temp probe 1 gt St temp probe 1 gt St AH 0 AH 14 AH Table 4 i Note the low and high temperature alarms are automatically reset this means that if the temperature returns within the allowed range the alarm signal is automatically cancelled During a high or low temperature alarm the message HI or LO respectively flashes on the display alternating with the temperature if fitted the buzzer is activated Ad temperature alarm delay Indicates after how many minutes the temperature alarm is signalled from when it is detected If the temperature after the delay Ad is within the allowed limits the alarm is not signalled Setting a delay to signal of the temperat
72. nce or any other liabilities deriving from the installation use or impossibility to use the product even if CAREL or its subsidiaries are warned of the possibility of such damage WARNINGS NO POWER amp SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT Separate as much as possible the probe and digital input signal cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance Never run power cables including the electrical panel wiring and signal cables in the same conduits DISPOSAL The product is made up of metal parts and plastic par In reference to European Union directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that 1 WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately 2 the public or private waste collection systems defined 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 disposal of such may have negative effects 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 dispo
73. nce request signal SrC O YE HMP HMd HMr 30 Table 1 c 1 4 NTC and PTC probes All easy and easy compact models use PTC and NTC probes conforming to the CAREL standard with resistance values of 985Q at 25 C for the PTC and 10 kQ for the NTC The type of probe installable depends on the model order code The easy split models on the other hand only use NTC and high temperature NTC probes 50 KQ at 25 C selected by parameter Below are some codes of the more common CAREL e connection cable between terminal and power board easy split only Available in different lengths PEOPZC1500 1 5 m PEOPZC3000 3 0 m PEOPZC5000 5 0 m code description operating index of range protection TC HPOO NTC probe 6x15 mm 50T50 C P67 ae bulb plastic 1 6 Definitions TO HT00 High temp NTC probe 011 20 C P55 Continuous cycle function that runs the compressor for the set time 5x20 bulb mm polyester max 150 C for 3000 h Defrost function that controls the defrost of the evaporator TC WPOO NTC probe 6x40 mm 50T100 C P67 en sub meta E Duty setting safety function that in the event of control probe faults 000 Probe BR 0000 as starts the compressor at set time intervals bulb metal 1 5 m long Table 1 d 1 5 Accessories CAREL IROPZKEY programming key for duplicating the parameters e CAREL IROPZ485S50 RS485 converter for the RS485 supervisory network CAREL USB RS485 conve
74. nd of the shield the sensor end only use IP67 probes as end defrost probes place the probes with the vertical bulb upwards so as to assist the drainage of any condensate The thermistor temperature probes NTC or PTC have no polarity so the order of connection of the ends is not important use cable ends suitable for the corresponding terminals Loosen each screw and insert the cable ends then tighten the screws When the operation is completed slightly tug the cables to check they are sufficiently tight The connections of the inputs and outputs depending on the models may be made using traditional screw terminals using plug in terminals with screw cable connection blocks using plug in terminals with crimped cable connection blocks using plug in terminals which significantly simplify the connection of the instrument both during installation and maintenance This also avoids connection errors as there are three connection blocks with a different number of pins Connect the inputs and the outputs following the diagram shown on the instrument label For the 12 Vac versions if the power supply available is mains a safety transformer is required o ensure double insulation between the power supply and the very ow voltage electronics If required a fuse must be installed in series with the primary 32 mAT for code TRA12VDE00 The transformer instrument connection must be as short as possible if the power supply
75. nsing range of measurement NTC probe 50T90 C 58T194 F resolution 0 1 C F NTC HT probe 40T150 C 40T302 F resolution 0 1 C F index of protection display front IP65 box mounted power board IPOO dimensions plastic terminal 81x36x38 29 mm power board plastic box 190x140x70 mm classification according to protection against electric class 1 shock environmental pollution grade 3 PTI of insulating materials 250V period of stress across the insulating parts long category of resistance to heat and fire category D UL94 VO immunity against voltage surges category 3 type of action and disconnection 1C relay contacts construction of the control device integrated electronic control device no of relay automatic operating cycles EN60730 1 100000 operations UL873 30000 operations software class and structure class A cleaning only use neutral detergents and water max cable length serial 1 km probes digital inputs 10 m relay 10 m conformity EN60730 1 EN61000 6 1 EN61000 6 2 EN61000 6 3 EN61000 6 4 EN61000 4 2 EN61000 4 3 EN61000 4 4 EN61000 4 5 EN61000 4 6 EN61000 4 11 Table 6 c The features shown depend on the model Minimum T OFF between two starts must be greater than 1 min Confo
76. ock Class 2 when suitably integrated environmental pollution normal PTI of the insulating materials 250V period of stress across the long insulating parts category of resistance to heat and fire category D UL94 VO immunity against voltage surges category 1 type of action and disconnection 1 Crelay contacts no of relay automatic operating cycles EN60730 1 100 000 operations UL 30 000 operations 250 Vac software class and structure Class A cleaning the instrument only use neutral detergents and water max cable length 1 km serial 30 m probes 10 m relay Table 6 a Power supply relay output connector screw terminals 5 mm pitch for cables with cross sect from 0 5 mm to 1 5 mm 12A max plug in terminals 5 08 mm pitch for screw blocks or with crimped contacts for cables with cross sect from 0 5 mm up to 2 5 mm 12A max Probe connector screw terminals 2 pin 5 mm pitch for models with 1 probe cable cross section from 0 5 mm to 1 5 mm 12A max 3 pin 3 81 mm pitch for models with 2 probes cable cross section from 0 08 mm to 1 5 mm 6A max plug in terminals for screw blocks or with crimped contact 2 pin 5 08 mm pitch for models with 1 probe cable cross section from 0 5 mm to 1 5 mm 12A max 3 pin 3 81 mm pitch for models with 2 probes cable cross section from 0 08 mm to 1 5 mm 8 A m
77. of easy compact parameters 5 8 Table of easy split parameters 5 9 Table of EZY parameter sets 5 10 Troubleshooting 6 TECHNICAL SPECIFICATIONS 39 6 1 easy technical specifications nee 6 2 easy compact technical specifications 6 3 easy split technical specifications 6 4 Electromagnetic compatibility 41 5 easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL 1 INTRODUCTION easy easy compact and easy split are electronic microprocessor controllers with LED display developed for the management of refrigerating units display cabinets and showcases They exploit the experience and the success of the previous PJ32 range with the objective of offering a product that is simpler and more economical The structure of the parameters has been enhanced with new functions for more 1 1 Main characteristics The following table lists the main features of the easy easy compact and easy split controllers Features dynamic and effective management of the temperature control and defrost easy compact the smallest most economical easy model with one relay only and a simplified display easy split model with separate terminal and power board Models D m easy compact easy split Ergonomic polycarbonate keypad with three buttons Y eypad protection to prevent tampering Y Access to the configuration parameters by passwor
78. ompressor starts immediately ON ON ei A O l o Y oF ON OFF ss Fig 4 1 Key 1 defrost 2 start compressor call 3 compressor d8 alarm bypass time after defrost The parameter has two effects 1 it delays the temperature alarm signal after a defrost 2 it delays the temperature alarm signal after opening the door In this case it is only active when A7 0 d9 defrost priority over compressor protectors Cancels the compressor protection times cO c1 c2 c3 at the start of the defrost The possible values are d9 0 protection times observed d9 1 protection times ignored the defrost has higher priority and the compressor times are not observed t is useful for example with hot gas defrost to avoid delaying the defrost in the case where the compressor has just stopped and there is a minimum time between two starts Remember however that in this case he maximum number of activations per hour of the compressor may not be respected d defrost probe reading Used to display the value measured by the defrost probe on the instruments where this is fitted easy easy compact easy split 030220791 rel 3 1 25 01 2010 dC time base Used to modify the unit of measure used to count the times for parameters dl defrost interval and dP defrost duration The following values are available dc dl dP 0 hours minutes 1 minutes seconds Table 4 g Th
79. ontrol the desired temperature set point inside the cabinet or cold room directly and dynamically To view and modify the set point press SET for 1 s the set value will start flashing increase or decrease the value using UP or DOWN press SET to confirm the new value A Important the PJEZM models fitted with keypad simply monitor the deviation from the set point and where necessary signal an alarm On these models the set point can only be modified using parameter St Manual defrost Not available on the easy thermometer M and easy compact models Press DOWN for more than 3 s activated only if the temperature conditions are right for easy split only if the light output is not set H1 4 Alternatively on easy split models if the light output is set H1 4 the defrost can be activated by pressing UP and DOWN together when H6 1 Continuous cycle Not available on the easy thermometer M and easy compact models Press UP DOWN for more than 3 s activated only if the temperature conditions are right and for easy split only when H6 0 The continuous cycle is used to maintain refrigeration active in the cabinet or cold room regardless of the temperature inside the unit This may be useful for rapidly bringing the temperature below the set point value Light easy split only As already mentioned when a light output is configured H1 4 the DOWN button switches the light on off otherwise it starts stops
80. osed 2 establish the time required parameters A7 time in minutes or d8 in hours 0 to enable the pre alarm on the display and to stop the evaporator fan 3 enable the digital input A4 7 8 For easy split A4 must be 7 8 10 11 When the door is opened the controller will start counting the pre alarm time if A7 or d8 are other than zero If on the other hand A7 0 and d8 0 the alarm will be activated immediately and the display will show dor alternating with the temperature reading The alarm can only be reset when the door is closed or alternatively when switching off the controller by pressing UP for 3 s on power up ifthe door is still open the pre alarm time will start counting again Important setting A7 0 and d8 0 ignores the pre alarm times the display will show dor alternating with the temperature and the fan will not stop Special cases continuous cycle performed normally however the evaporator fan is stopped based on the times set for A7 defrost performed normally and the activation of the fan is controlled using parameter F3 evaporator fan status during defrost If F3 1 the digital input will only signal the opening of the door without having any effect on the fan Easy and easy compact During the pre alarm A7 or d8 0 the fan is stopped the LEDs and temperature display flash excluding the compressor LED if on the high temperature alarms are disabled During th
81. output H1 3 Input open door open Input closed door closed 8 Door switch with evaporator fans and compressor off dor alarm instant A7 0 or delayed A7 gt 0 operation of AUX output H1 3 Input open door open closed door closed Inpu 9 Direct reverse operating mode IF r3 0 input open direct defrost input closed reverse IF r3 1 2input open direc input closed reverse 10 Probe for dirty condenser alarm 11 Product probe Table 4 CAREL A4 0 multifunction input disabled The multifunction input is not activated and cannot be used as a digital or analogue input A4 1 external alarm contact open alarm detected contact closed normal operation When A4 1 easy can be connected to an external contact for immediately signalling alarms The alarm signal can be delayed by setting parameter A7 The activation of the alarm brings about a message on the display see par 5 1 Table of alarms and signals on page 31 activates the buzzer if featured and stops the compressor due to external alarm immediate if A7 0 while the fan continues operating according to parameters FO F1 F2 F3 Fd If the external alarm is detected during a defrost or a continuous cycle the controller stops these without completing dripping and post dripping for defrosts When the alarm ceases the unit resumes normal Operation and then
82. p 2 probes X Y r maximum set point value E 50 r2 CPF 50 S with 1 amp 2 probes X Y C r2 select direct reverse operation a rl 200 SF 90 S with 1 amp 2 probes X Y C 13 night time set point delta E 0 2 0 S with 2 probes X Y r4 control differential E 50 50 C F 3 S with 1 amp 2 probes X Y C co compressor and fan start delay on power up e 0 00 min 0 S with 1 amp 2 probes X Y C minimum time between consecutive compressor starts C 0 100 min 0 S with 1 amp 2 probes X Y C c2 minimum compressor off time C 0 00 min 0 S with 1 amp 2 probes X Y C c3 minimum compressor on time C 0 100 min 0 S with 1 amp 2 probes X Y C c4 compressor on time with duty setting C 0 00 min 0 S with 1 amp 2 probes X Y C cc continuous cycle duration C 0 5 h 4 S with 1 amp 2 probes X Y C c6 emperature alarm bypass after continuous cycle 0 15 h 2 S with 1 amp 2 probes X Y C do ype of defrost C 0 4 0 S with 1 amp 2 probes X Y C al interval between defrosts F 0 199 h min see dC 8 S with 1 amp 2 probes X Y C dt end defrost temperature set point defrost temperature F 50 130 CF 4 S with 2 probes X Y C hreshold with temp control dP maximum defrost duration F 1 99 min s see dC 30 S with 1 amp 2 probes X Y C d4 defrost when switching the instrument on 0 1 0 S with 1 amp 2 probes X Y C d5 defrost delay on power up or when enabled by di
83. perature NTC 40T150 C 4 2 Temperature display The temperature displayed the unit of measure and the decimal resolution can be set according to the following parameters 4 5 and 6 4 select probe displayed Used to choose whether to display the temperature read by the control probe Probe 1 Probe 2 or the status of the multifunction input analogue or digital Digital input 0 contact closed Digital input 1 contact open Parameter 4 selects the probe shown on the display all the other display and control modes remain unchanged Ab Important the easy compact models can display up to 2 probes 5 select C F Defines the unit of measure used for temperature control 5 0 to work in C 5 1 to work in F Warning when changing from one unit of measure to the other all the values of the temperature parameters are modified to the new unit of measure The max and min limits of the absolute temperature parameters are the same for both C that F The range of temperatures allowed is therefore different between C and F easy easy compact easy split 030220791 rel 3 1 25 01 2010 6 disable decimal point Used to enable or disable the temperature display with the resolution to the tenths of a degree between 20 and 20 easy and easy split or 10 and 10 easy compact 6 0 temperature displayed to the tenth of a degree 6 1 temperature displayed without the tenths of a degree
84. pressor On Off switching frequency in the event of minimum emperature deviations with the risk of causing damage rd high values less precise temperature control low compressor On Off switching frequency in the event of minimum emperature deviations N Important the compressor can also be safeguarded using the parameters that limit the number of activations hour and the minimum off time see par 4 6 Compressor protection page 19 4 4 Duty Setting Safety function that ensures the operation of the compressor even in the event of a control probe fault If alarm EO occurs duty setting ensures the operation of the compressor until the fault is resolved The compressor not being able to be activated according to temperature works cyclically with an ON time equal to the value assigned to parameter c4 in minutes and a fixed OFF time of 15 minutes see Fig 4 b C4 C4 ON compressor OFF OFF 15 min Fig 4 b c4 compressor on time with duty setting c4 0 in the event of an ambient probe fault the compressor will be always off c4 100 the compressor will remain always on and the c4 99 15 minute off time is not considered for easy compact 0 lt c4 lt 100 at the moment a probe error E0 is detected the 0 lt c4 lt 99 duty setting cycle starts from the current status for easy compact of the compressor that is the status of the compressor is maintained and the time already elapsed is ignored The
85. put is used in analogue mode for probe 3 product Below is a summary table of the relation between parameter A4 and the actuators outputs alarm AUX FAN COMP A4 1 A gt Y A4 6 Y A4 7 dor Y Y A4 8 dor Y Y Y Table 4 m activation of the defrost control r3 contact result 0 open Direct operation with defrost control closed Reverse operation 1 open Direct operation A4 3rd input configuration easy split closed Reverse operation This paragraph highlights the differences in the setting of parameter A4 2 open Direct operation for easy easy compact and easy split closed Reverse operation easy split Table 4 1 A4 Meaning 0 nput not active 1 nstant A7 0 or delayed A7 gt 0 external alarm nput open alarm A4 10 Probe for dirty condenser alarm nput closed ok Multifunction analogue alarm input and dirty condenser pre alarm using the third probe To enable this function set 1 third probe 2 parameter Ac temperature set point above which easy signals the dirty condenser alarm 3 parameter AE temperature differential that together with Ac determines the dirty condenser pre alarm 4 parameter Acd dirty condenser alarm signal delay 5 parameter A4 10 enable the probe and dirty condenser alarm cht dirty condenser pre alarm e indicates that the limit between Ac and AE has been exceeded deriving from the calculation A
86. r a time greater than A7 the controller goes into alarm status he temperature displayed flashes alternating with dor he buzzer is activated he light remains on if an output is configured as the light output H1 4 he high temperature alarm is enabled after the delay Ad he auxiliary relay is activated if H1 3 he fan is ON if A4 8 11 the compressor is restarted observing any protection times c parameters Closing the door The controller resumes normal operation he fans and the compressor are started if called observing any protection times c parameters he light is switched off if an output is configured as the light output H1 4 he auxiliary relay is deactivated if H1 3 he buzzer is deactivated he temperature stops flashing and the alarm icon bell goes off he high temperature alarm is enabled after the delay Ad Ado 1 cold room Assuming the user enters the cold room closing the door behind him and then exits the room closing the door a second time If the user enters the cold room and then leaves immediately closing the door the controller waits until the door is opened a second time and if this does not occur within a certain time A7 or d8 normal operation resumes Opening the door the first time When opening the door if parameters A7 and d8 arex0 the controller goes into pre alarm status the temperature displayed and the alarm icon bell flash the
87. r supply connections easy easy compact easy split 030220791 rel 3 1 25 01 2010 12 CAREL 2 3 Wiring diagram for multiple units The RS485 converter IROPZ485S0 is used to connect the easy easy compact and easy split instruments to the supervisor network allowing complete control and monitoring of the easy units connected The system allows up to 207 units to be connected together with a maximum length of 1000 m The connection requires the standard accessories RS485 USB converter CAREL code CVSTDUMORO and two 120 Q terminal resistors Connect the RS485 converter to the easy easy compact or easy split using a four wire cable and make the connections as shown in the figure The line should be started and ended with a 120 Q 1 4 W resistor For the allocation of the serial address see parameter HO The recommended connection cable is a twisted pair with shield and cross section from 0 5 to 1 5 mm AW6 22 24 CVSTDUMORO Low IROPZ485S0 easy 1200hm max 207 easy units Nas J a GND IROPZ485S0 s8evsy easy y 4 A HE IROPZ485S0 Fig 2 h 120 ohm N easy split The serial connection for the easy split models with 4 relays depends on the setting of parameter H7 as the management of the fourth relay RL4 and serial communication are mutually exclusive
88. rmity to UL873 only corresponds to models without plastic case Terminal Power board 117 ial 8 5 NG 103 5 5 8 Ih 94 can LO coocoo amp 31 i 38 29 s SIE 71x29 ei ART a ia iia Im amp Fa 6 0000000000 ds RL1 RL4 RL3 RL2 prat Pit LO N gt 7 Fig 6 d easy easy compact easy split 030220791 rel 3 1 25 01 2010 40 CAREL 6 4 Electromagnetic compatibility The easy and easy compact series is compliant with the EU standards on electromagnetic compatibility for household appliances EN 55014 2 and EN 55014 1 e for residential commercial and light industrial environments EN 50082 1 and EN 50081 1 e for industrial environments EN 50082 2 and EN 50082 1 e as regards safety the devices are compliant with standards EN60730 1 and EN60730 2 9 41 easy easy compact easy split 030220791 rel 3 1 25 01 2010 Notes CAREL CAREL INDUSTRIES HQs 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 CAREL reserves the right to modify the features of its products without prior notice easy easy compact easy split 030220791 rel 3 1 25 01 2010
89. rt minutes AFh 13 end hours and AFM 29 end minutes A Important the activation the AUX output activation time band is linked to parameters H1 3 and A4 6 7 8 and for easy split A4 10 11 CAREL 4 12 Rapid parameter set selection EZY The easy easy compact and easy split controllers feature the EZY parameter on the compact models this is called EY which is used to quickly choose a list of parameters with corresponding values for the control of the refrigeration system By setting parameter EZY 1 2 3 4 one of the 4 lists made up of a maximum of 25 parameters for the lists see par 5 9 Table of EZY parameter sets page 36 The values in the chosen list overwrite the corresponding operating parameters O Note to restore the selected rapid parameter set at any time turn the controller off and on again while holding SET The display shows CE to indicate that the selected rapid set EZY 1 2 3 4 has again overwritten the operating parameters thus restoring the original set of parameters to restore all the parameters and return to the original default values factory settings turn the controller off and on again while holding DOWN and SET until the display shows CF Use this procedure with extreme care as it may compromise the fundamental control settings EZY 0 brings no change on the thermometer models PJEZM the EZY parameter EY for the easy compact models is not featured
90. rter CVSTDUMORO to interface a RS485 network to a personal computer via the USB port VPM program downloadable from http ksa carel com This tool running on a computer can be used to commission the controller program the parameters and update the firmware COMTOOL program downloadable from http ksa carel com This tool can be used to program the controller from any PC save the different configurations in files that can be recalled during final programming create custom sets of parameters for rapid programming and configure the different users with password protected access profiles Connection to the PC requires the USB RS485 converter code CVSTDUMORO easy trademark of the PJEZ S X Y C M thermostats easy compact more compact and economical version of the easy Available in models PJEZ S M easy split version with separate terminal and power board Versions available with PJEZ 8R or without PJEZ 81 RTC and the power board can be supplied with PJEZ 8 5 or without PJEZ 8 4 plastic case easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL 2 ASSEMBLY AND INSTALLATION 2 1 Assembly the same time with the screwdriver so that the catch moves back Do not unscrew too much the head of the screw must not be raised from the surface of the front panel phase 2 Warnings Avoid installing the boards in environments with the following
91. s duty setting continuous cycle defrost UMSS SS NIN ENENENESENG high low temperature alarm UMSS ASIN AS SS ENESENENESENESENE SS ESENENESENEN SEND NEN ES ENENENENENENE UMSS SS ESSEN dirty condenser alarm P gt inlanlalan lan Al AA AAawulala evaporator fan management ON OFF w AUX output configuration SEN END NN lt lt lt loja enable disable keypad enable disable buzzer modified parameter detection SS ENENENENESE SS ESENENENESE lt s SENT Sji rapid parameter set selection BNENEN ENENENESENENENESENENENENESENG N ESENENESENENE N ENESENENENENE clock and time band management door switch with light management 4 2 2 55 850138 Ro NR juli USES SS SS SS SS SS SS SS N SEN EN ENENESESENE disable high temperature alarm when starting h w 1 i 1 1 1 1 1 1 1 1 1 second compressor output in parallel gt Ww SS SS second comp output with two step control with or without rotation fan management with comp off 410 7 E 5 z A Y night time operation with light 411 Y Y management Table 1 b available but cannot be set from the keypad nor the programming key easy easy compact easy split 030220791 rel 3 1 25 01 2010 8 CAREL 1 3 Main differences between easy easy compact and easy split
92. s in addition also feature a multifunction input analogue or digital All easy split models have two analogue inputs and one multifunction input analogue or digital After installation the values measured by the temperature probes can be corrected and stabilised using the following parameters 2 probe measurement stability Coefficient used to stabilise the temperature measured by the probes 2 acts as a filter on the minimum variations in the temperature measurement and at the same time calculates the average of the readings e low values assigned to 2 allow a prompt response of the sensor to temperature variations the reading becomes more sensitive to disturbance high values slow down the response but guarantee greater immunity to disturbance more stable and more precise reading 3 probe display rate easy split only This parameter is used to set the rate at which the temperature display is updated The temperature shown on the display tends to follow rapid deviations away from the set point very slowly and vice versa moves very quickly in the event where the temperature displayed is approaching the set point If the control temperature exceeds the high or low temperature thresholds and an AL or AH alarm is activated the filtering is immediately bypassed and the temperature displayed is the temperature effectively measured until all the alarms are reset The action of parameter 3 only affects the temper
93. se the UP and DOWN buttons to scroll the parameters The LED corresponding to the category of parameters will be on see Table 5 b e press SET to display the value associated with the parameter e increase or decrease the value using the UP or DOWN button respectively press SET to temporarily save the new value and display the parameter again e repeat the procedure for any other parameters that need to be modified press the SET button for more than 3 s to permanently save the parameters and exit the parameter setting procedure Warnings if no button is pressed for 60 s all the changes made to the parameters temporarily saved in the RAM will be cancelled and the previous settings restored The dAY hr Min dMo Mom YEr parameters are not restored as these are saved instantly when entered easy split only If power is disconnected from the instrument before saving the settings pressing the SET button for 3 s all the changes made to the parameters and temporarily saved will be lost Category Initial Icon Probe parameters Control parameters r 2 Compressor parameters Cc 6 Defrost parameters d rd Alarm parameters A A Fan parameters F wR AUX output configuration parameters H1 AUX RTC parameters Table 5 b 5 5 Setting the default parameters Warnings running this procedure overwrites any custom parameter settings To reset the default parameters disconne
94. sed of separately 5 in the event of illegal disposal of electrical and electronic waste the penalties are specified by local waste disposal legislation a easy easy compact easy split 030220791 rel 3 1 25 01 2010 CAREL Content 1 INTRODUCTION 7 Ti Maim characters 7 mn Pu e 7 1 3 Main differences between easy easy compact and easy split 9 1 4 NIE ana PIE Pro arena 9 1 5 Accessories 1 6 Definitions 2 ASSEMBLY AND INSTALLATION 10 2 1 Assembly 2 2 Electrical connections 2 3 Wiring diagram for multiple units 3 USER INTERFACE AND START UP 14 3 2 easy Compact 4 3 3 easy split 5 3 4 Preliminary configurations 15 3 5 Functions available from the keypad 5 4 FUNCTIONS AND PARAMETERS 17 4 1 Temperature probe settings 7 4 2 Temperature display 7 4 3 Temperature control 4 4 Duty Setting 4 5 Continuous cycle cnica 9 4 6 Compressor protection 4 7 Defrost 4 8 Alarm parameters 4 9 Door open closed management 4 10 Evaporator fan management parameters neee 27 4 11 Clock and time band parameters 4 12 Rapid parameter set selection EZY 4 13 Other settings ade a 5 TABLES OF ALARMS AND PARAMETERS 31 5 1 Table of alarms and sigNalS ocaciones 31 5 2 Description of the main signals and alarms 5 3 Data error 5 4 Modifying the parameters 5 5 Setting the default parameters 5 6 Table of easy parameters 5 7 Table
95. splay Fig 3 c Fig 3 a but function normal operation start up no ON OFF flash 1 compressor on off Call ON but function normal operation start up 2 digits two digits with sign and decimal point 99 to 99 See no ON OFF flash parameters 4 5 6 for the type of probe displayed values 1 compressor on off Call ON in C F and decimal point 2 fan on off call ON Table3 c 3 defrost on off call ON 5 ws 4 auxiliary output output active output not ON The parameters that feature three digit values can be set from the AUX active supervisor In this case the display will show 5 clock RTC RTC available RTC not ON ifthe enabled tEN 1 available or clock is and at least one not enabled fitted time band has tEN 0 or no Keypad model S been set time band set 6 alarm alarm in no alarm in ON progress progress Q _ 0 7 digits three digits with decimal point and range 199 to 999 See ny parameters 4 5 6 for the type of probe displayed values eo in C F and decimal point Table 3 a vie Fig 3 d but normal operation start u Keypad models C S X Y no pressing the button I pressing with i other buttons aN 1 more than 3 s switch ON pressed together amp 0D OFF with 3 activates my deactivates the o continuous cycle 2 1 s displays sets the set for 1s RESET pressed Kiez point current EY set together 2 more than 3 s accesses and 3 activate Fig 3 b the parameter setting
96. switch with evaporator fan off and light not managed See A4 7 for easy easy compact in previous paragraph In easy split models with light output configured H1 4 the status of the light output remains unchanged See paragraph 4 9 Door open closed management A4 8 Door switch with evap fan and comp off and light not managed See A4 8 for easy easy compact in previous paragraph In easy split models with light output configured H1 4 the status of the light output remains unchanged See paragraph 4 9 Door open closed management A4 9 See A4 9 for easy easy compact in previous paragraph A4 10 Door switch with evaporator fan off and light managed See paragraph 4 9 Door open closed management A4 11 Door switch with evaporator fan and comp offand light managed See paragraph 4 9 Door open closed management A4 12 Select EASY SET from digital input Used to select the set of control parameters control according to the status of the digital input Digital input open easy set 1 Digital input closed easy set 2 The easy set from digital input has higher priority than parameter EZY this means that any attempt to change the easy set using parameter EZY is ignored if A4 12 A4 13 Probe for dirty condenser alarm See A4 10 for easy easy compact in previous paragraph A4 14 See A4 11 Product probe or easy easy compact in previous paragraph
97. the unit may heat up in this case make sure the maximum temperature allowed is not exceeded See the table of technical specifications separate as much as possible the probes and digital input signal cables from the cables carrying inductive loads and power cables to avoid possible electromagnetic disturbance Never lay power cables including the electrical cables and probe signal cables in the same conduits Do not install the probe cables in the immediate vicinity of power devices contactors circuit breakers or similar reduce the path of the probe and sensor cables as much as possible and avoid spiral paths that enclose power devices The probes must be connected using shielded cables minimum cross section of each wire 0 5 mm avoid direct contact with internal electronic components connection errors and connections other than those indicated in this manual may involve danger to the safety of the users and cause faults on the instruments and the components connected fit the unit with all the electromechanical safety devices required to guarantee correct operation and the complete safety of the user O Information the probes can be installed up to a maximum distance of 30 m from the controller 10 m for easy split To extend the distance of the probes use cables with a minimum cross section of 1 mm shielded where possible In this case the shield must be connected to the common of the probe Do not earth the other e
98. ton or3s turn the instrument off and on again or alternatively reprogram the parameters correctly for C models the fan does not start 1 a compressor and fan start delay has been set 2 if FO 1 fan managed by fan controller the evaporator is hot the evaporator temperature can be read by selecting parameter d dripping in progress F1 evaporator fan control set point too low post dripping delay set 3 if FO 0 F2 1 and the compressor is off dripping in progress post dripping in progress 1 parameter cO 2 parameters FO F1 Fd dd and d 3 parameters FO F2 dd and Fd easy easy compact easy split 030220791 rel 3 1 25 01 2010 38 Table 5 i CAREL 6 TECHNICAL SPECIFICATIONS 6 1 easy technical specifications 6 2 easy compact technical specifications power supply 230 Vac 10 15 50 60 Hz 115 Vac 10 15 50 60 Hz power supply 230 Vac 10 15 50 60 Hz 115 Vac 10 15 50 60 Hz 12 Vac 10 15 50 60 Hz class 2 12 Vdc 10 or 12 Vac 10 50 60 Hz PJEZM 12 Vdc 11 16 Vdc class 2 only without AUX relay rated power 1 5 VA rated power 0 5 VA inputs NTC or PTC probes 1 or 3 inputs Digital input as inputs TC or PTC probes 1 or 2 inputs alternative to third probe relay output 2HP relay relay outputs 2 HP relay UL 12 A Res 12 FLA 72 LRA 240 Vac UL 12A 10 FLA 60 LRA 250 Vac 30
99. tor fans if compressor stops F2 0 the fan operates according to FO even when the compressor is off F2 1 the fan is off when the compressor is off F2 2 easy split only the fan is managed in cyclical on off mode The on and off times can be configured by parameters F4 and F5 respectively The on and off sequence after control is deactivated starts with the ON phase so as to exploit the fact that the evaporator is still cold cP au OFF ON FAN OFF Il i ell lt t Ii t tt gt F4 F5 F4 F4 F5 F4 F5 eK 1 lt gt a al Fig 4 n Key F4 Fan ON time t time F5 Fan OFF time FAN fans CP Compressor F3 evaporator fan status during defrost F3 0 the fan is on during the defrost F3 1 the fan is off during the defrost Fd post dripping time The fans after the defrost can stay off for a further period in minutes beyond dd defined by the value of Fd This is useful to allow the evaporator to return to operating temperature after defrost thus avoiding blowing warm air into the refrigerated environment If management by fan controller is selected no time needs to be set for Fd as the controller starts the fans again when the evaporator has reached the correct temperature If the fan controller is active FO 1 setting to Fd a value 0 the fans remain off for a time equal to the value of Fd regardless of the evaporator temperature F4 fan ON time with F2 2 easy split only This par
100. turday nOd 10 Saturday amp Sunday nOd 11 every day nOh Night time band set point start hours nOM Night time band set point start minutes nFd Night time band set point end day nFh Night time band set point end hours nFM Night time band set point end minutes In easy split models entering night time band involves the automatic modification of the set point and the light output if H1 4 Example To program the night time set point nOd every day from 12 31 to 13 29 set nOd 11 days nOh 12 start hours NOM 31 start minutes nFh 13 end hours and nFM 29 end minutes During night time operation the set point is varied night time set point st r4 in direct mode night time set point st r4 in reverse mode Where featured the protective curtain also closes the cabinet A4 4 Parameters for setting the AUX output activation time band AOd AUX output activation time band day setting AOd 0 no event set AOd 1 7 Monday to Sunday AOd 8 from Monday to Friday AOd 9 from Monday to Saturday AOd 10 Saturday amp Sunday AOd 11 every day AOh AUX output activation time band start hours AOM AUX output activation time band start minutes AFd AUX output deactivation time band end day AFh AUX output activation time band end hours AFM AUX output activation time band end minutes Example To program the activation of the AUX output every day from 12 31 at 13 29 set AOd 11 days AOh 12 start hours AOM 31 sta
101. ure alarms may help eliminate false alarms due to interference on the probe signal or situations lasting a short time for example opening the cold room door briefly The temperature alarm delay has no effect on two special functions defrost and continuous cycle To delay any temperature alarms after these functions parameter d8 for defrost and c6 for continuous cycle must be modified Remember that during defrost and continuous cycle no temperature alarms are generated Def Ad 0 instant temperature alarm A4 3rd input configuration easy compact The multifunction input is only available on the easy models with three inputs is not available on the easy compact models This parameter is used to set the functions of the input easy easy compact A4 Meaning 0 Input not active 1 External alarm instant A7 0 or delayed A7 gt 0 Input open alarm Input closed ok 2 Enable defrost Input open disabled Input closed enabled 3 Start defrost when closing MODEL M select probe displayed Input open probe 1 Input closed probe 2 4 Curtain switch or night time operation nput open normal set point nput closed night time set point r4 5 Remote ON OFF nput open OFF nput closed ON 6 Direct operation of AUX output when H1 3 nput open AUX de energised nput closed AUX energised 7 Door switch with evaporator fans off dor alarm instant A7 0 or delayed A7 gt 0 Operation of AUX
102. xternal contact for switching instrument on off ON OFF from external contact has priority over the keypad and the supervisor See par 3 5 Functions available from the keypad page 15 for further details on the functions of the instrument when OFF A4 6 Direct operation of AUX output with H1 3 contact open AUX output not active contact closed AUX output active When A4 6 easy can be connected to an external contact for controlling the auxiliary output H1 3 auxiliary output linked to the digital input A4 7 Door switch with evaporator fans off contact open door open contact closed door closed This is used to signal the door open alarm and stop the evaporator fan See paragraph 4 9 Door open closed management easy easy compact easy split 030220791 rel 3 1 25 01 2010 A4 8 Door switch with evaporator fan and compressor off contact open door open contact closed door closed See A4 7 with the addition of shutting down the compressor during the pre alarm A7 or d8 Enabling the digital input A4 8 has priority over the compressor protection parameters cO c1 c2 c3 See paragraph 4 9 Door open closed management A4 9 Direct reverse operating mode contact open direct operation contact closed reverse operation Parameter A4 9 has priority over parameter r3 only r3 0 specifies the CAREL A4 11 Product probe 3rd input terminal 11 configured as product probe The in

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