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1. dima di foratura drilling template 71x29 mm A 76 2 Q rs 65 gt Y 64 i HH p 69 W gt p 806 Version E A Fig 2 1 2 2 Panel mounting To install the ir33 use the 2 brackets shown in the figure lt 1 2 Fig 2 0 Insert the ribbon cable in the opening attach the connectors and apply the membrane keypad Fig 2 m STEP 1 Drill the holes 3 mm with the spacing shown in the figure and make the opening for inserting the ribbon cable MUUU TDU U 53mm 14 5 mm Fig 2 p 9 ir33plus 03Z0028EN rel 1 0 27 08 2014 2 3 Partnumber list corresponding ir33 P N power supply inputs 1133 P N IREVMOLNOU 12 24 Vac 2NTC 2DI 12 30 Vdc IREVMOENOU 230 Vac 2 NTC 1 DI IR33MOEROO IREVSOLNOU 12 24 Vac 2NTC 2DI IR33SOLNOO 12 30 Vdc IR33SOLROO IREVSOEAOU 230 Vac 2 NTC 1 DI IR33SOEA00 IREVCOLNOU 12 24 Vac 2NTC 2 DI IR33COLNOO 12230 Vde IR33COLROO IREVCOLCOU 12 24 Vac 2NTC 2 DI IR33COLBOO 12 30 Vdc IREVCOHNOU 115 230 Vac 2 NTC 2 DI IR33COHROO IREVCOHCOU 115 230 Vac 2 NTC 2 DI IR33C0HB00 IREVFOENOU 230 Vac 2 NTC 1 DI IR33FOENOO IR33FOEROO Tab 2 a 2 4 Optional connections ir33 Q IROPZ48500 IROPZKEY Serial board interface RS485 Programming key 1
2. yY Alarm 1 to 3 Year 0 0 99 year M__ Alarm 1 to 3 Month 0 1 12 month d Alarm 1 to 3 Day of the month 0 1 31 day h__ Alarm 1 to 3 Hour 0 0 23 hour nN Alarm 1 to 3 Minute 0 0 59 minute ir33plus 03Z0028EN rel 1 0 27 08 2014 AH S1 St ON ALARM OFF Key ST Control probe Ad High and low temperature alarm delay AH High temperature alarm Htd HACCP alarm delay threshold 0 monitoring disabled ALARM HF HACCP alarm t Time St Set point 8 7 High condenser temperature alarm The condenser temperature can be monitored and high temperature situations signalled most likely when the condenser is blocked The following figure describes the signal Par Description Def Min Max UOM Ac _ High condenser temperature alarm threshold 70 O 1200 C F AE High condenser temperature alarm differential 10 10 1 120 C F Acd High condenser temperature alarm delay O 10 1250 min 0 Immediate alarm Tab 8 C Ac Sc Ac AE 2 Fig 8 d Key t Time Ac High cond temperature alarm threshold Acd Alarm delay cht High cond temperature pre alarm Sc__ Condenser probe CHT High condensing temperature alarm AE High condensing temperature alarm differential ir33plus 03Z0028EN rel 1 0 27 08 2014 40 CAREL 8 8 Frost protection alarm The frost protection alarm is only active if a probe has been set as the frost pr
3. Tab 6 b Parameter 4 is used to determine the virtual probe Sv as the weighted average of control probe S1 and probe S2 according to the following formula S1 100 4 S2 4 100 NIGHT set point 10 C DAY set point 13 C 4 50 Sv S1 S2 2 Fig 6 a Key SI Outlet probe Sv Virtual probe S2 Intake probe 6 3 Set point The reference output is the compressor output CMP The controller can operate in 3 different modes as selected by parameter r3 e direct with defrost control e direct e reverse Par Description Def Min Max UOM St Setpoint Def 1 Def 2 r2 C F 2 18 rd Differential 2 0 0 1 20 SPF rn Neutral zone 4 0 0 0 60 PCF rr Reverse differential 2 0 GA J20 I F rl _ Minimum set point 50 50 M2_ PET r2 Maximum set point 60 r1 200 CZFE r3 Operating mode 0 0 2 0 Direct with defrost control cooling 1 Direct cooling 2 Reverse heating Tab 6 C REVERSE DIRECT CMP ON CMP Fig 6 b Key Si Set point rd Differential Sv Virtual probe CMP Compressor If the second compressor output is activated H1 12 on the AUX output the compressor output is activated at St rd 2 and the AUX output at St rd as illustrated in the following figure REVERSE DIRECT AUX AUX Sv rd 2 x rd 2 rd 2 rd 2 St l St Fig 6 c Key S
4. status 9 door switch with fans off door open door closed 10 direct reverse operation direct mode _ reverse mode 11 light sensor light off light on 12 activate aux output deactivated _ activated 13 door switch with compressor and fans door open door closed off and light not managed 14 door switch with fans off and light not door open door closed managed Tab 5 c CAREL The following parameters are involved in the explanation of the settings for A4 and AS Par Description Def Min Max UOM A4 Multifunction digital input 1 configuration 10 3 0 14 DI1 IR33M See the previous table A5 Multifunction digital input 2 configuration 0 0 14 DI2 See the previous table A6 Stop compressor on external alarm 0 0 100 Imin 0 compressor always off 100 compressor always on A7 Digital alarm input delay 0 control 0 0 250 min outputs unchanged Ado Light management with door switch 0 0 1 gt c Maximum pump down time PD 0 0 900 s 0 Pump down disabled d5 Defrost delay at start up if d4 1 or from 0 0 250 min DI d8 High temperature alarm bypass time after 1 0 250 hr defrost and door open min d8d Alarm bypass time after door open 0 0 250 min dl Maximum time between consecutive 8 0 250 Ihr defrosts 0 defrost not performed min Tab 5 d 1 Immediate external alarm Application external alarm that requires immediate action for example high press
5. Fig 6 i Key CMP FAN Compressor fan LIGHT Light AUX Auxiliary output Sv Virtual probe St Set point Hdh Offset t Time Note e when alarms HI IA dA7 CHt EE EF rE are active of the controller is OFF the anti sweat heater function is still enabled e at the end of the anti sweat heater function the outputs configured as light or auxiliary can be controlled by the user from the keypad Supervisor or digital inputs if AUX is configured as a light or auxiliary output at power on the output retains the same status as when previously powered down If the anti sweat heater function is activated this is no longer true the Output at power on remains OFF while the function is active When the control temperature virtual probe reaches the value of St Hdh the function ends activating the light output and auxiliary output irrespective of their status when previously powered down ir33plus 03Z0028EN rel 1 0 27 08 2014 6 8 Light and Aux outputs If AUX is configured as a light or auxiliary output at power on the output retains the same status as when previously powered down The light or AUX output can be activated by the scheduler this is set using parameter H8 For the on off day and time settings see chapter 3 Par Description Def Min Max UOM H8 Output switched with scheduler 0 0 1 0 Light
6. Type F parameters include the set point differential temperature monitoring interval interval between defrosts end defrost temperature dripping time alarm thresholds alarm bypass times etc See the parameter table Procedure 1 press Prg Mute one or more times to return to the standard display 2 press Prg Mute for more than 3 seconds if an alarm is active the buzzer is muted the display will show the code PS Password and the number 0 3 press Set the display shows parameter St 4 press UP or DOWN until reaching the desired parameter when scrolling an icon is displayed that represents the category the parameter belongs to see the table below and the parameter table press Set to display the value of the parameter press UP DOWN until reaching the desired value press Set to temporarily save the new value and display the parameter code again 8 Repeat steps 4 to 7 to set other parameters 9 To permanently save the new values of the parameters press Prg Mute for 5 seconds This exits the parameter setting procedure EN En Setting type C parameters Type C parameters include the type F parameters plus all the other control parameters Procedure 1 press Prg Mute one or more times to return to the standard display 2 press Prg Mute for more than 3 seconds if an alarm is active the buzzer is muted the display will show the code PS Password and ir33plus 03Z002
7. ADA 101 Installation wo 42 20 Pligg Ol zaa oo Narn tert 9 102 DATI 42 gt gt SORA mn 9 103 Computer Ke COPTIC TION name R EA 42 2 10 104 PORNO 42 24 OPIGMIALEONNEELAN Aaaa EE AEO AAAA 10 05 MODES PAR AR AA 43 25 _ir33 wiring diagrams seessaseriemseneiminiranei aaie 10 196 Add seror parameters sistema 43 20 OO OW AO EE 11 107 EPA TRS en mme nes 43 22 Programming KEY CODY SETUP mena 11 HU E 11 APPENDIX 2 ADVANCED FUNCTIONS 44 28 Remote display connection iii 12 a SAO 2 9 Network CONNECTION iii 12 ibi itaca 44 3 USER INTERFACE 13 11 2 Variation of the defrost interval 44 R 11 3 Defrost with 2 evaporators ie 45 RE a a a aa ao a 13 114 Second compressor With rotation 45 de MBAS PEC aaa aa 13 da 12 APPENDIX 3 FOOD SAFETY HACCP 47 gt PP Ad a a 14 lt O 12 1 Food safety HACCP 47 4 COMMISSIONING 18 12 2 Sensors InStallatiOn s mnt 47 At Calata 18 PEER 47 4 2 Loading the sets of parameters eee 19 12 4 Repairs and MaintENance nn ui 47 43 Preparing ior operah as de aim dE 19 Oo de LA 47 5 FUNCTIONS 20 Dili Prob s TANAIOOUS HUE aan 20 2 LI 20 Sa Lola 24 6 CONTROL 25 6 1 Switching the controller ON OFF iii 25 02 UDO 25 I ida 25 Ole ROZA A 26 0 5 AUTOSAN PUMP GOW el 26 66 COMINUGUECYCE asesor 27 6 7 Anti sweat heater od AA AA ERO OO EA 27 oe Gontand AU outs was OG GA O 28 0 ica 28 cb Peo AR a E 30 i Oca 31 6 12 Duty setting Par CA cane 31 6 13 Running time defrost p
8. Defrost probe evap Situation Effect output config Probe 2 defrost output 1 No probe Defrost ends by timeout dP 1 Probe available probe Defrost ends by timeout error dP1 Probe 3 No probe defrost output 2 AUX configured Defrost ends by timeout dP 1 AUX not configured Not performed Probe available probe Defrost ends by timeout error dP2 Probe available and AUX Defrost performed on not configured defrost output Probe 4 together with No probe not managed Cases 4 6 not reco probe 2 and probe gnised 3defrost output 1 and Probe available probe Defrost ends by timeout defrost output 2 error Tab 11 d DEFROST BY TIME Defrost probe Situation Effect evap output config Defrost output AUX configured _ Defrost ends by timeout dP1 AUX not confi gured Defrost not performed Tab 11 e Note AUX configured as evaporator outputs are not equivalent 11 4 Second compressor with rotation Second compressor output with two step control and rotation The role of main and secondary compressor are alternated whenever the compressor stops so that when next called to start or stop the output not involved in the previous start stop will be activated deactivated Par Description Def Min Max UoM H1 AUX output configuration 173 10 113 0 normally energised alarm 13 second compressor step with rotation Tab 11 f ir33plus 03Z0028EN r
9. E g Papera ci a diz Cadira ta ca Z Le 4 Faunce di F w i isa Cedric porcs i Paisai all s Colour sorda 4 5 d Fikri 4 al gs Cani aa spray li 4 D partes pts p mil Camarines porche 7 M p Pacs cl g id ME Canesten porte Z i mi Pauwod u gd fa Pca Cara wory Et m Pinar d w m a Cali ara crap A a m Panpi et Fr Cindia apenas kora i 20 aul Ba zctarata mi m z L luj Tod Totu o LJ a Paired di la LJ toba rejonowe este CI Fi TAAA ui Fal E Pied i u miri HT miany greenery M w AE Parigi tl Fig 10 h 10 6 Add a set of parameters Up to 6 set of parameters can be added to Set0 Set0 Set1 Set2 Set3 Set4 Set5 Set6 To do this e move the cursor to Set0 and click the right button choose Add set for each additional set 43 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 11 APPENDIX 2 ADVANCED FUNCTIONS 11 1 Skip defrost This algorithm is used to determine whether the shorter duration of a defrost allows subsequent defrosts to be skipped To enable the function set d12 2 or3 Possible operating sequence for example if d12 2 Start count Skip count Currentcount Defrost Outcome Performed Not tested Performed Not tested Performed Not tested Performed Not tested Performed Not tested Performed Not tested Performed Not tested Par Description Def Min Max UOM d12 Advanced defrosts 0
10. Fig 6 k Key i Time Sd _ Defrost probe dti End defrost temperature dO Type of defrost probe 2 dP1 Maximum defrost duration DEF Defrost Heater defrost by time with temperature control d0 4 is used to activate the defrost output only if the evaporator temperature Sd is less than value of the parameter dt1 and ends after the time defined by dP1 This function is useful for energy saving CAREL 1 Heater defrost d0 0 2 4 duty cycle The duty cycle refers to the default values of parameters F2 and F3 Note the defrost output DEF is used to control the hot gas valve V_def REFRIG PUMP DEF DRIP POST REFRIG NN Fig 6 0 REFRIG PUMP DEF DRIP POSTDRIP REFRIG Key i dali ae e CMP Compressor Refrig Cooling ON V_Pd_ Pump down valve Pump down Pump down stage CMP FAN Evaporator fan Def Defrost OFE V_def Hot gas valve Drip Dripping ON E Evaporator Post drip Post dripping V Pd C Condenser S2 Defrost probe V2 Thermostatic expansion valve L Liquid receiver OFF F Filter drier S Liquid gauge ON t Time FAN OFF The defrost starts ON e by setting the event and the start mode with a maximum of 8 defrosts RES OFF each day parameters td1 to td8 The real time clock RTC must be available from the supervisor which sends the defrost call to each controller via the serial line
11. assignment of logical relay to physical relay brightness of the display level of modulation of the relay control signal The unit parameters from the original model must therefore be restored to ensure correct operation of the controller ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 2 8 Remote display connection Toconnectthe remote display use the dedicated cable P N PSTCONO BO and the tLAN interface card P N IROPZDSP00 See the following diagram Also set a value gt 0 for parameter tE to display the reading on the remote display Par Description Def Min Max UOM AE Reading on remote display 0 6 6 O Not fitted 4 Probe 3 1 Virtual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe 2 Tab 2 c 2 9 Network connection AN Warnings e the RS485 converter IROPZ485x0 is sensitive to electrostatic discharges and therefore must be handled with extreme care e check the documents on the IROPZ485x0 interface for connection instructions so as to avoid damaging the controller e fasten the converter properly so as to prevent disconnection e complete the wiring without power connected keep the IROPZ485x0 interface cables separate from the power cables relay outputs and power supply The RS485 converter is used to connect the ir33 controllers to the supervisor network for the complete management and monitoring of the connected controllers The system allows a maximum of 207 unit
12. c3 Probe 3 calibration MSYFCH 00 20 20 A 13 13 RAW C c4 Probe 4 calibration MSYFCH 0 0 20 20 A 14 14 R W ir33plus 03Z0028EN rel 1 0 27 08 2014 22 CAREL User__ Par Description Models_ Def Min_ Max UOM Type CAREL SVP ModBus R W Ctl F St Set point MSYFCH Def 1 Def 2 r1 r2 CZFJA 16 16 R W 2 18 F rd Differential NECH 20 0 1 120 C FIA 17 17 R W C rn Neutral zone SYFCH 14 0 0 0 160 C FIA 34 34 R W C rr Reverse differential SYFCH 120 0 1 20 CZEJA 35 35 R W C r1 Minimum set point MSYFCH 50 50 r2 lC FIA 18 18 R W C r2 Maximum set point MSYFCH 160 rl 200 _ C F A 19 19 R W C 3 Operating mode SYFCH J0 0 2 25 125 R W 0 Direct with defrost control cooling 1 Direct cooling 2 Reverse heating 8 4 Automatic night time set point variation MSYFCH 13 0 20 20 CZEJA 20 20 R W C r5 Enable temperature monitoring 0 1 no yes MSYFCH 0 0 1 D 42 42 R W F rt Duration of current max and min temperature monitoring MSYFCH 10 0 999 hour 26 126 R session F rH Maximum temperature read MSYFCH E CZE A 21 21 R F rL Minimum temperature read MSYFCH CZEJA 22 22 R User Par Description Models Def Min Max UOM Type CAREL SVP ModBus R W
13. on reaching the set point the controller closes the pump down valve and then the pressure switch signals low pressure If due to valve tightness problems the pressure switch is activated again the compressor can be restarted by the Autostart function Par Description Def Min Max UOM c9 Autostart in pump down 0 0 1 0 Disabled 1 Pump down whenever closing pump down valve amp following low pressure switch activation with no cooling demand Tab 6 e CAREL ON CMP FAN OFF ON VPD OFF ON PRESSURE SWITCH OFF ON AtS OFF Sv gl a e N N Fig 6 h Key CMP FAN Compressor fan S Set point VPD Pump down valve C7 Maximum pump down time Pressure switch Pressure switch t Time Control probe AtS Autostart in pump down V Note in the compressor autostart function the protection times c1 and c2 are applied but not c3 e The message AtS is reset automatically when the next pump down cycle terminates correctly A Important in the event of Pd alarms the autostart function is deactivated 6 6 Continuous cycle For information on activating the continuous cycle from the keypad see chapter 3 The value of parameter cc must be gt 0 During operation in continuous cycle the compressor continues to operate independently of the controller for the time cc so as to lower the te
14. stage 3 in the table below Stage _ Display Keypad First Display com Press Prg for 5 seconds to set the default values pletely off for 5 seconds Second Display comple No effect tely on for 2 s Third 3 segments Pressing each button lights up a specific seg on ment Note in this stage the icon indicates the Real Time Clock RTC is fitted Fourth Normal opera Normal operation tion Tab 3 g The sequence of buttons to be pressed to test the display in stage 3 is described below Defrost To activate a defrost the defrost probe must measure a temperature less than the end defrost temperature par dP 1 ACTIVATION press for 5 seconds TN SET YY DEF After 5 seconds the display shows the start defrost signal dFb for 3 s The controller enters defrost mode with the corresponding icon shown on the display together with the message dEF if set accordingly by parameter d6 The defrost relay is also activated Par Description Def Min Max UoM d6 Terminal display during defrost0 Tempera 1 0 2 ture alternating with dEF1 Display disabled2 dEF Tab 3 h Example defrost activation DEACTIVATION press for 5 seconds DEF After 5 seconds the display shows the end defrost signal dFE The controller exits defrost mode returning to the standard display ir33plus 03Z0
15. temperature alarm is set point AL If the set point changes the activation point also changes automatically In the latter case A1 1 the value of AL indicates the low temperature alarm threshold The low temperature alarm active is signalled by the buzzer and LO shown on the display The same applies to the high temperature alarm HI with AH instead of AL Note If AL and AH alarms are set as relative to set point A1 0 their values has to be greater than O Par Description Def Min Max UOM AO Alarm and fan differential 20 0 1 20 0 our AT Type of threshold AL and AH O O 1 0 AL and AH are relative thresholds to the set point 1 AL and AH are absolute thresholds AL Low temperature alarm 0 A1 1 50 200 CHF threshold A 1 0 O alarm LO disabled AH High temperature alarm 0 AI 1 50 A1 1 200 C F threshold A1 0 0 Li disabled A1 0 200 Ad High and low temperature 120 10 250 min alarm delay A6 Stop compressor on external 0 J0 100 min alarm 0 compressor always off 100 compressor always on A7 Digital alarm input delay O 00 250 min 0 control outputs unchan ged Tab 8 a Note e alarms LO and HI have automatic reset AO represents the hysteresis between the alarm activation value and deactivation value if Prg mute is pressed when the value measured is above one of the thresholds the buzzer is immediately muted whil
16. the buzzer and the alarm relay if selected are activated the delayed external alarm is thus signal only 3 Probe shown on the display IR33M models On thermometer only models this setting selection is used to exploit the digital input in order to show on the display the probe selected by parameter tl or the first enabled probe see parameters A2 A3 A4 In practice if the contact is open the probe selected by parameter tl is shown whereas if the contact is closed the first enabled probe is shown Note if more than one digital input is configured as the probe selection the probe selected by parameter tl is displayed when at least one of the inputs is open 21 3 Enable defrost all other models Application any defrosts called when the contact is open remain pending until the contact closes The various possibilities are shown below A4 3 Contact Defrost Open Not enabled Closed Enabled Closed without request from the Not performed controller Closed with in When the digital input opens the defrost is immedia progress tely stopped and the unit restarts normal operation without performing the dripping or post dripping stages The LED starts flashing to indicate that the defrost call is pending awaiting the next enabling signal closing of the contact when the defrost will be performed completely Tab 5 e Note this function is useful to prevent
17. 1 AUX H9 Set point variation with scheduler 10 0 1 0 1 no yes St Set point Def 1 Def 2 M 2 CE 2 18 r4 Automatic night time set point 3 0 20 20 GPF variation ton Light aux on time gt g 3 a toF_ Light aux off time Tab 6 h Fig 6 j Key CMP Compressor fan r4 Automatic night time set point FAN variation St Set point Sv Virtual probe ton _ Light aux on time toF Light aux off time t Time 6 9 Defrost Introduction Parameters td1 to td8 can be used to set up to 8 defrost events managed by the controllers clock RTC Press Set to set the sub parameters as shown in the table Par Description Def Min Max UOM td1 8 Defrost 1 to 8 press Set di Defrost 1 to 8 day 0 0 11 day h__ Defrost 1 to 8 hour 0 0 23 hour nN Defrost 1 to 8 minute 0 0 59 minute Tab 6 i Remember that sub parameter d_ of td1 td2 defines the defrost day as follows d_ Defrost day 0 event disabled 1 7 Monday to Sunday 8 Monday to Friday 9 Monday to Saturday 10 Saturday amp Sunday 11 every day ir33 can manage the following types of defrost based on the setting of parameter dO 0 heater located near the evaporator by temperature 1 hot gas by temperature 2 heater by time 3 hot gas by time 4 heater by time with temperature control The defrost can end by temperature in which case the defrost probe
18. 20 Tab 5 a min max Fig 5 a Key T1 Temperature read by the probe T2 Value calibrated by T1 A Calibration value min max Range of measurement Assigning the functions of probes S2 S3 S4 The controller inside the refrigerated cabinet or cold room can use the following probes e defrost located on the evaporator preferably where ice remains the longest e condenser used to protect the compressor against high pressure when the condenser is off or the condenser fan is malfunctioning e frost protection to activate the corresponding alarm Note to configure probes 3 and 4 as digital input 1 and 2 respectively set parameters A3 e A4 0 if multiple probes have been configured with the same operating mode the controller will use the first probe in increasing order with that configuration ir33plus 03Z0028EN rel 1 0 27 08 2014 20 Par Description Def Min Max UOM A2 Probe 2 configuration 52 M models 0 0 4 i A2 Probe 2 configuration 52 2 0 4 O Absent 1_ Product display only 2 Defrost 3 Condenser 4 Frost A3 Probe 3 configuration 53 0 0 3 O Digital input 1 DI1 1_ Product display only 2 Defrost 3 Condenser 4 Frost A4 Probe 4 configuration 54 DI2 0 0 4 O Digital input 2 DI2 1_ Product display only 2 Defrost 3 Condenser 4 Frost Tab 5 b 5 2 Digital inputs Digital inputs DIT and
19. D 35 35 R Continuous cycle call command D 36 36 RW Door status D od 37 R AUX activation command D 57 57 RW Light activation command D 58 58 RW Controller ON OFF D 59 59 RW Password 14 114 RW Virtual probe fault alarm D 9 9 R Probe 1 2 3 4 fault alarm D 10 11 12 13 14 10 11 12 13 14 R Low temperature alarm D 15 15 R High temperature alarm D 16 16 R Immediate external alarm D 17 17 R Delayed external alarm D 18 18 R Evaporator 1 defrost timeout alarm D 19 19 R Evaporator 2 defrost timeout alarm D 20 20 R Pump down timeout alarm D 21 21 R Low pressure alarm D 21 21 R High condenser temperature alarm D 24 24 R Door open for too long alarm D 25 25 R RTC error D 26 26 R Control parameter EEPROM error D 27 27 R Operating parameter EEPROM error D 28 28 R HA HACCP alarm D 29 29 R HF HACCP alarm D 30 30 R Alarm autostart in pump down D 32 32 R ir33plus 03Z0028EN rel 1 0 27 08 2014 36 CAREL 8 SIGNALS AND ALARMS 8 1 Signals Signals are messages shown on the display to notify the user of the control procedures in progress e g defrost or confirm the controls from the keypad or remote control Code Icon Description Probe not enabled GEF A Defrost running dFb 44 Start defrost call CFE End defrost call ccE End continuous cycle call HcP Access HACCP menu CC Sa Continuous cycle ccb K Start continuous cycle call E
20. DI2 respectively can be enabled in the place of probes 53 and S4 Digital inputs 1 2 must first be enabled par A3 and A4 0 and then assigned to a specific function par A4 and A5 Finally an external contact can be connected to the multifunction input to activate various types of functions such as alarms curtain door switches start defrost etc See the table below A Important to ensure unit safety in the event of serious alarms the unit must be fitted with all the electromechanical safety devices needed to guarantee correct operation Note applies to all settings of par A4 and A5 if 2 digital inputs are configured in the same way for example to enable defrost the disable event is generated when at least one of the inputs is open while the enable event is generated when at both inputs are closed Digital input functions PARAMETERS A4 A5 Setting Contact OPEN CLOSED _ N 0 not active 1 immediate external alarm active not active 2 delayed external alarm active not active 3 select probe ir33M see tl first probe enabled A2 A3 A4 A5 3 enable defrost all other models not enabled enabled 4 start defrost not active active 5 door switch with compressor and evapo door open door closed rator fans off 6 remote ON OFF OFF ON 7 curtain switch curtain open curtain closed 8 low pressure switch low pressure normal status
21. DOWN button for at least 5 seconds e all the changes made to the parameters temporarily stored in the RAM can be cancelled by not pressing any button for 60 seconds thus returning to the standard display The values of the clock parameters rtc however are saved when entered Parameter categories Category Text Icon Category Text Icon Probes Pro or Fan FAn 90 Control Chl Configuration CnF COS z T Compressor CMP HACCP HcP Defrost JEF Clock rtc oa Alarms ALM PRG a Tab 3 f The following examples apply to models fitted with RTC CAREL Example 1 setting the current time date 1 Access the type C parameters as described in the corresponding paragraph 2 Press UP DOWN and select the parent parameter tc or alternatively press the PRG button to select the rtc parameter category and then the parameter tc 3 Press Set parameter y is displayed followed by two digits that indicate the current year 4 Press Set and set the value of the current year e g 12 2012 press Set again to confirm 5 Press UP to select the next parameter month and repeat steps 3 and 4 for the following parameters 6 M month d day of the month u day of the week h hour m minutes 7 To return to the list of main parameters press Prg mute and then access parameters ton and toF see the following paragraph or alternatively 8 o save the settings press Prg mute for 5 second
22. R W n Defrost 1 to 8 minute 0 0 59 min 108 111 129 208 211 229 R W a ton Light aux on time SYFCH R W d__ Day 0 1 7 day 130 230 R W h__ Hour 0 0 23 hour 131 231 R W n__ Minute 0 0 59 minute 132 232 RAW a to Light aux off time SYFCH R W de gt Day 0 1 7 day 133 233 R W h Hour 0 0 23 hour 134 234 R W n Minute 0 0 59 minute 135 235 RAW C tc Date time press Set MSYFCH i R W V__ Date time year 12 J 99 year 1 101 R W m__ Date time month 8 1 12 month 2 102 RAW d Date time day of the month 1 1 31 day 3 103 RAW u Day of the week 1 1 7 day 4 104 R W ME Date time hour 0 0 23 hour ll 5 105 R W n Date time minute 0 0 59 minute 6 106 R W 7 14 Variables only accessible via serial connection Description Type CAREL SVP Modbus R W Virtual probe A 3 3 R Probe 1 reading A 4 4 R Probe 2 reading A 5 5 R Probe 3 reading A 6 6 R Probe 4 reading A i 7 R Number of parameter sets available 137 237 R Digital input 1 status D 6 6 R Digital input 2 status D 7 7 R Virtual probe fault alarm D 9 9 R Probe alarm D 10 10 R Probe alarm 2 D 11 11 R Probe alarm 3 D 12 12 R Probe alarm 4 D 13 13 R Compressor status relay D 1 1 R Defrost relay status D 2 2 R Fan relay status D 3 3 R AUX 1 relay status D 4 4 R Digital input 1 status D 6 6 R Digital input 2 status D 7 7 R Defrost status D 31 31 R Defrost call command D 34 34 RW Continuous cycle status
23. by td3 is not performed and after the safety time dl a new defrost starts J td2 td3 Fig 6 p Key dl Maximum time between consecutive defrosts DEF Defrost td1 td3 Programmed defrosts t Time Note e if dl expires when the controller is OFF a defrost will be performed when next switched on e to ensure regular defrosts the interval between defrosts must be greater than the maximum defrost duration plus the dripping time and post dripping time if dl 0 and no timed defrosts have been set defrosts can only be performed at power on from digital input from the supervisor and from the keypad Other defrost parameters Par Description Def Min Max UOM d3 Defrost activation delay O JO 250 min d4 Defrost at start up 0 00 1 0 1 disabled enabled d5 _ Defrost delay at start up if d4 1 or from dl 0 10 1250 min dd Dripping time after defrost fans off 2 JO 15 min d8 High temperature alarm bypass time after 1 O 250 min defrost and door open d9 Defrost priority over compressor protectors 0 1 0 0 yes no d 1 Display defrost probe 1 CZE d 2 Display defrost probe 2 CF dC Time base for defrost O O 0 di in hours dP1 and dP2 in minutes 1 dl in minutes dP1 and dP2 in seconds Tab 6 1 d3 determines the time that must elapse when the defrost is activated between the stopping of the compressor
24. heater defrost or the starting of the compressor hot gas defrost and the activation of the defrost relays on the main and auxiliary evaporators d4determines whether to activate a defrost when switching controller on The defrost call at start up has priority over activation of the compressor and the continuous cycle Defrosting when switching controller on may be useful in special situations Example there are frequent power failures in the system In the event of a power failure the instrument resets the internal clock that calculates the interval between two defrosts starting from zero again If the frequency of the power failure were in an extreme case greater than the defrost frequency e g a power failure every 8 hours against a defrost every 10 hours the controller would never perform a defrost In a situation of this type it is preferable to enable defrost on start up above all if the defrost is controlled by temperature probe on the evaporator therefore avoiding unnecessary defrosts or at least reducing the running times For systems with a large number of units if selecting defrosts at start up after a power failure all the units will start a defrost This may cause voltage overloads ir33plus 03Z0028EN rel 1 0 27 08 2014 30 CAREL To overcome this parameter d5 can be used which adds a delay before the defrost the delay must obviously must be different for each unit e d5 represents the time that
25. 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 product described in this document without prior warning The technical specifications shown in the manual may be changed without prior warning The liability of CAREL in relation to its products is specified in the CAREL general 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 of replacement goods or services damage to things or people downtime or any direct indirect incidental actual punitive exemplary special or consequential damage of any kind whatsoever whether contractual extra contractual or due to negligence 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 possibil
26. must elapse between the start up of the controller and the start of the defrost on start up dd is used to force the stop of the compressor and of the evaporator fan after a defrost so as to assist the dripping of the evaporator same e d8 indicates the high temperature alarm signal bypass time after the end of a defrost or when opening the door if the digital input is connected to the door switch d9 overrides the compressor protection times c1 c2 c3 at the start of the defrost e d 1 and d 2 are used respectively to display the values read by defrost probe 1 and 2 dC is used to change the unit of measure hours or minutes used to count the times for parameters dl defrost interval hours or minutes dP1 and dP2 defrost duration 6 10 Evaporator fans The evaporator fans can be managed according to the temperature measured by the defrost and control probes The deactivation threshold is equal to the value of parameter F1 and the hysteresis is equal to the value of AO Note during the dripping time and post dripping time if set the evaporator fans are always off Below are the parameters involved in managing the evaporator fans and an example of the trend based on the difference between the evaporator temperature and the value of the virtual probe F0 1 If FO 2 activation depends solely on the evaporator probe temperature Par Description Def Min Max UOM FO Evapo
27. network connection all controllers are fitted with a serial connector for connection to the supervisor network via the serial interface IROPZ485 0 The secondary of the transformers that supply the controllers must not be earthed If connection to a transformer with earthed secondary winding is required an insulating transformer must be installed in between A Important a separate transformer must be used for each controller NEVER connect multiple controllers to the same transformer 11 JN Warnings avoid installing the controller in environments with the following characteristics e relative humidity greater than 90 non condensing strong vibrations or knocks exposure to continuous water sprays e exposure to aggressive and polluting atmospheric agents e g sulphur and ammonia gases saline mist smoke which may cause corrosion and or oxidation strong magnetic and or radio frequency interference for example near transmitting antennae e exposure to direct sunlight and the elements in general The following warnings must be observed when connecting the controllers e incorrect connection of the power supply may seriously damage the controller e use cable ends suitable for the corresponding terminals Loosen each screw and insert the cable ends then tighten the screws and gently pull the cables to check their tightness When tightening the screws do not use automatic screwdrivers rather adjust tool t
28. or inhibi ted by protection times 3 2 ir33 keypad Tab 3 d Button Normal operation Start up Pressing the button alone Pressing together with other buttons PRE If pressed for more than 3 seconds accesses the type F PRG ON OFF UP if pressed together for more if pressed and held for more than 5 secon N parameters frequent or the menu for setting the pas than 3 seconds resets any alarms with manual ds at start up activates the procedure for d sword to access the type C parameters Configuration reset setting the default parameters PRG MUTE if there is an active alarm mutes the audible alarm buz zer 13 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL a If pressed for more than 3 seconds switches the con ON OFF UP AUX DOWN if pressed together for more than 3 seconds activates deactivates troller OFF if pressed for more than 1 s switches the controller ON ON OFF UP yed or scrolls to the next parameter the continuous cycle ON OFF UP SET DEF if pressed together for more than 3 seconds displays the temperature when setting the parameters increases the value displa read by the defrost probe ON OFF UP PRG MUTE if pressed together for more than 3 seconds resets any alarms with manual reset ATR If pressed for more than 1 s activates deactivates the AUX DOWN ON OFF UP if pressed together for more than 3 seconds activates deactivates auxiliary ou
29. relay output protectors parameter c11 Par Description Def Min Max UOM c11 Second compressor start delay 4 0 250 5 Tab 5 1 e c11 defines the activation delay between the first and second compressor or between the first and the second compressor step Le c gl c3 p C2 i ON I I I STEP1 OFF ON STEP2 OFF POWER_ONT Key Step _ Compressor step 1 Step2 Compressor step 2 t time Functions assigned to AUX Output AUX can be assigned different functions such as alarm signal auxiliary output light output pump down valve condenser fan reverse output with neutral zone second compressor second compressor with rotation For details see the chapter on control Par Description Def Min Max UOM H1 AUX output configuration 1 0 13 0 normally energised alarm 1 normally de energised alarm 2 auxiliary 3 light 4 auxiliary evaporator defrost 5 pump down valve 6 condenser fan 7 delayed compressor 8 auxiliary with deactivation when OFF 9 light with deactivation when OFF 10 no function 11 reverse with neutral zone 12 second compressor step 13 second compressor step with rotation Tab 5 m CAREL 6 CONTROL 6 1 Switching the controller On Off The controller can be switched ON OFF from a number of sources keypad supervisor and digital input In this operating mode the display will be show the temperature s
30. remain off if it signals light the door is open and the light will be switched on again Tab 5 h ir33plus 03Z0028EN rel 1 0 27 08 2014 12 Auxiliary output Set H1 2 to activate the auxiliary output See the table at the start of this paragraph for details on the activation deactivation logic 13 Door switch with compressor and fan off light not managed Operation is similar to A4 5 with the difference that the light output is not modified Note the light management algorithm depends on parameter Ado Light management with door switch masked parameter accessible from VPM Ado Light when ope Algorithm Description ning the door 0 off normal open close on extended open close open close 1 off extended open close open close on normal open close Tab 5 i If the digital input is selected to not manage the light A4 A5 13 or 14 the algorithm is modified as follows Ado Light when ope Algorithm Description ning the door 0 off normal open close on extended open close open close 1 off normal open close on normal open close Tab 5 See the table at the start of this paragraph for details on the activation deactivation logic 14 Door switch with fan off only light not managed Operation is similar to A4 9 with the difference that the light output is not modified Note the light management algorithm depends on pa
31. the table below probe 1 is the control probe and cannot be configured DEFROST PROBE AND EVAPORATOR OUTPUT CONFIGURATION Case Defrost probes Evaporator Notes outputs 1 Probe 2 Evap 1 Probe 2 acts on evap 1 2 Probe 2 Evap 1 Probe 2 acts on evap 1 and 2 and 2 3 Probe 2 Evap 1 Probes 2 and 3 act on evap 1 start Probe 3 and end defrost refer to the probe with the lower value 4 Probe 2 Evap 1 Probes 2 3 4 act on evap 1 start and Probe 3 end defrost refer to the probe with the Probe 4 lower value 5 Probe 2 Evap 1 Probe 1 acts on evap 1 Probe 3 Evap 2 Probe 2 acts on evap 2 6 Probe 2Probe 4 Evap 1 Probe 2 and 4 act on evap 1 end de frost if all probes gt end defrost thre shold Probe 3 and 4 act on evap 2 end de frost if all probes gt end defrost thre shold Probe 3Probe 4 Evap 2 Tab 11 Case 6 refers to the configuration with 1 probe on each evaporator and 1 probe in common CASE 6 probe 2 probe 4 on evaporator 1 probe 3 probe 4 on evaporator 2 aa mw Key E1 2 Evaporator 1 2 S2 3 4 Defrost probe 2 3 4 C Condenser CMP Compressor V1 2 Electronic expansion valve 1 2 F Filter drier L Liquid receiver S Liquid gauge V1 2 Thermostatic expansion valve 1 2 The following situations may occur if the outputs are not configured or there are probe alarms DEFROST BY TEMPERATURE
32. tl and tE accordingly Icon Function Normal operation IREVXGD000 sla DO Ve BA a gt A gt AUX N QI te Fig 3 b O 9 W Start u Notes Compressor On Off ON OFF Flashing Awaiting activation Flashes when activation is delayed or inhibi ted by protection times Fan On Off Awaiting activation Flashes when activation is delayed by protection times or other procedures in progress A Defrost Active by TR Awaiting Flashes when activation is delayed by protection times or other procedures in progress fy AUX output AUX output 1 or 2 active Anti sweat heater function active ny PRG Alarm On if delayed alarm from digital Alarms during normal operation N input e g high low temperature alarm s or in the event of malfunctions on together with the spanner icon Clock On if a timed defrost has been set If Clock alarm ON if RTC the real time clock is fitted the icon is available displayed for a few seconds during the third stage of the start up procedure Naj Light Auxiliary output 1 and or 2 confi gured as light active Anti sweat heater function active Malfunctions e g EPROM errors or faulty probes HACCP HACCP function enabled Or Service HACCP alarm saved HA and or HF x Continuous Continuous cycle function active cycle Function called Flashes when activation is delayed
33. variations the reading however become more sensitive to disturbance High values slow down the response but guarantee greater immunity to disturbance that is a more stable and more precise reading Par Description Def Min Max UOM 2 Probe measurement 4 1 15 Stability Tab 4 a Probe display stability A Important this parameter only applies to the temperature shown on the display and not the reference control temperature Par Description Def Min Max UOM 3 Probe display stability 0 0 15 J 0 Disabled 1 Fast update 15 Slow update Tab 4 b 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 In the table the delay of display based to the setting 3 Display delay 3 Display delay O Disabled 8 305 TJS 9 _ 605 2 LIOS 10 755 3 as 11 1905 4 20s 12 1055 5 255 13 11205 6 305 14 11505 405 15 1805 Tab 4 C If the control temperature exceeds the high or low temperature thresholds and a high low temperature alarm AH AL is activated or if the maximum number of filtering steps is exceeded the filtering would immediately be bypassed and the temperature displayed would be
34. 0 3 d12 Skip defrost Automatic variation of dl 0 Disabled Disabled 1 Disabled Enabled 2 Enabled Disabled 3 Enabled Enabled dn Nominal defrost duration 65 100 1 dH _ Proportional factor for variation of dl 50 JO 100 dP1 Maximum defrost duration 309 250 min s dP2 Maximum aux evaporator defrost duration 30 250 min s Tab 11 a The nominal defrost times on evaporator 1 and evaporator 2 auxiliary evaporator are determined based on parameter dn and the parameters that set the maximum defrost duration for evaporators 1 and 2 according to the following formulae dn dn1 dP1 100 d dn2 dP2 100 The algorithm keeps a counter of the defrosts to be skipped ifthe defrost ends after a time less than dn1 the counter of defrosts to be skipped is increased by 1 e if the defrost ends normally the next defrost is performed e when the counter reaches a total of 3 3 defrosts are skipped and then the counter returns to 1 e when powering on the controller 7 defrosts are completed without increasing the value after which the counter is enabled starting from the eighth defrost Note if there are two evaporators the defrost duration used to determine the defrosts to be skipped is the longer nominal defrost duration ir33plus 03Z0028EN rel 1 0 27 08 2014 Performed gt dn Performed gt AN Performed gt dn Performed gt dn Performed lt dn Skipped Defros
35. 028EN rel 1 0 27 08 2014 Example defrost deactivation On Off To switch the controller off from the keypad press On Off for 3 seconds The display shows the text Off flashing for 3 seconds and then on steady Finally the text Off alternates with the standard display Any active output relays are deactivated To switch the controller on from the keypad press On Off for 1 s The display shows the text On for 1 s and then returns to the standard display Any output relays are activated again Continuous cycle For the explanation of the continuous cycle function see chapter 6 To activate the continuous cycle the value of parameter cc must be gt 0 ACTIVATION press the button or combination of buttons for 5 seconds A TT AUX O The message cc flashes on the display for 3 seconds and subsequently if the conditions are suitable the controller shows the start continuous cycle message ccb and the corresponding icon on the display Example continuous cycle activation DEACTIVATION press the button or combination of buttons for 3 s MN AUX or The message cc flashes on the display for 3 seconds and subsequently the controller shows the end continuous cycle message ccE Display defrost probe To display the value measured by the defrost probe e press Set and UP together
36. 2 IROPZDSPOO Display interface option Fig 2 q 2 5 ir33 wiring diagrams Thermometers IREVMOENOU EN60730 1 8 4 A mr ope 250 V orix 7 UL 873 8A 2FLA SERIAL and KEY POWER SUPPLY C1 L N I I PROBES DI 230V 25 mA max Fig 2 r ir33plus 03Z0028EN rel 1 0 27 08 2014 10 CAREL IREVMOLNOU gt EN60730 1 12 2 A Ti 035 250V aa ELA UL 873 12A 5FLA 30LRA SERIAL and KEY POWER SUPPLY 10160 ES ross tLAN interface PROBES DI DI 12 24V 300 mA max 12 30 Vdc 300 mA dc max Fig 2 5 IREVSOEAOU Maximum current on terminal 1 12 A EN60730 1 8 4 A 8 4 A UL 873 2 0V 8A 2FLA 8A 2FLA 12LRA 12LRA SERIAL POWER gz KEY SUPPLY mr PROBES DI 230 V 25 mA max Fig 2 t IREVSOLNOU Maximum current on terminal 3 12 A EN60730 1 12 2 A 8 4 A UL 873 220 Y 12A 5FLA SA 2FLA 30LRA 12LRA SERIAL KEY aa interface N L La PROBES DI DI 12 24V 300 mA max 12 30 Vdc 300 mA dc max Fig 2 u Thermostats with 3 relays compressor defrost evaporator fans IREVFOENOU Maximum current on terminal 1 12 A EN60730 1 8 4 A 8 4 A 5 1 A UL 873 2 0V 8A 2FLA 8A 2FLA 5A IFLA 12LRA 12LRA 6LRA SERIAL POWER C1 l l PROBES DI 230V 25 mA max Fig 2 v CAREL Thermostats with 4 relays compressor defrost evaporator fans AUX IREVCOHNOU IREVCOHCOU Maximum current on terminal 3 12 A EN60730 1 12 2 A
37. 8 4 A 8 4 A 8 4 A L UL 873 220V712A 5FLA 8A 2FLA 8A 2FLA 8A 2FLA 30LRA 12LRA 12LRA 12LRA SERIAL 10T60 and KEY feel essi LN tLAN N L I I PROBES DI DI interface 115 230 V 50 mA max Fig 2 w IREVCOLNOU IREVCOLCOU Maximum current on terminal 3 12 A L EN60730 1 12 2 A 8 4 A 8 4 A 8 4 A UL 873 220 Y 12A 5FLA 8A 2FLA 8A 2FLA BA 2FLA 30LRA 12LRA 12LRA 12LRA SERIAL 10T60 N R I I PROBES DI DI interface 12 24V 300 mA max 12 30 Vdc 300 mA dc max Fig 2 X Key L Line N Neutral R1 R2 R3 R4 _ Digital output 1 2 3 4 relay 1 2 3 4 AUX Auxiliary relay PROBES Probe 1 Probe 2 DI1 DI2 Digital input 1 Digital input 2 2 6 Installation To install the controller proceed as follows with reference to the wiring diagrams shown in the previous paragraphs 1 connect the probes and power supply the probes can be installed up to a maximum distance of 10 m from the controller using shielded cables with a minimum cross section of 1 mm To improve immunity to disturbance use probes with shielded cables connect only one end of the shield to the earth on the electrical panel 2 program the controller as shown in the chapters Commissioning and User interface 3 connect the actuators the actuators should only be connected after having programmed the controller Carefully check the maximum relay capacities as indicated in the technical specifications 4 serial
38. 8EN rel 1 0 27 08 2014 LL lt Q HIOMJOU gt lewolne WO NO ud UlO NO Wieje yun s 1edIpul 9u lu a 3 i 3 enUELWI 440 440 wieje dDDVH 4H SAL JH 5 a gt JENUEW 440 440 wieje dDDVH YH SdAl YH St YO J0119 440 440 440 JJO un jou 110 110 uni JOU 110 399 2HEWOINE 440 110 Sud INOYd33 Jejoweled bunesado 11 440 440 110 440 un JOU 110 JJO un JOU 440 440 ZMEWOJNE 440 110 Sud 10119 INOYd3I J9I8WEJEd HUN SE A 5 8 z jenuew snewoine 440 40 2 JNO YDO D duu POH De _ 3 p 5 Dnewoinel NO NO Sud uue je Buoj 00 10 Uado 100q Jop amp ue 110 JJO JJO a jenueu NO NO Sud sin elsdueo 18SU2PUOD UBIH HD a 5 z z gt nueu pewne JJO JJO weje 31d due JesuspuoD gt YDIH 1UD _ A _ 8 z gt z gt enuew ponewoinel NO NO Sud umop dund ul ueIsoIny Sly 440 1 P i 5 5 440 140 enuew gt newolne NO NO Sud Wee a1nssaid MO dl ras m _ z i 2 enuew newolne NO NO Sud umop dund unuixew We Pd O LV J OV O LY O LY Sd IDEIUOI bumes np 1 440 O ZY J 440 H 440 i gt 9Y Bulnes np Dheuwuomne NO NO Dad eUJ2 X9 OJJ WUe e pafejog vp 9y Sy 1DE UOJ bumas Anp 440 440 440 9y Buas Anp 9y bumes A1np Dheuome NO NO Sud 2U19 X9 WOJJ Wee s EIDSLULU VI 440 440 J410 enuew NO NO Sud wieje UONI2I0Id 15014 14Y e 110 110 5 a 3 woln
39. 8EN rel 1 0 27 08 2014 Tab 3 e the number 0 3 press UP DOWN and enter the password 22 Press Set the display shows parameter 2 4 press UP or DOWN until reaching the desired parameter when scrolling an icon is displayed that represents the category the parameter belongs to see the table below and the parameter table 5 press the SET button to display the value of the parameter 6 press UP DOWN until reaching the desired value 7 press Set to temporarily save the new value and display the parameter code again 8 repeat steps 4 to 7 to set other parameters 9 to permanently save the new values of the parameters press Prg Mute for 5 seconds This exits the parameter setting procedure A Important If the controller is powered down before pressing Prg mute all the changes made to the parameters will be lost Inthe two parameter setting procedures F and the new values are only saved after having pressed Prg mute for 5 seconds When setting the set point the new value is saved after confirming with Set Note e To move from the parameters in one category to another when displaying the parameter code press Prg to show the category and UP and DOWN to move from one category to another if no button is pressed for 10s the display starts flashing and after 1 minute automatically returns to the standard display to increase the scrolling speed press and hold the UP
40. Critical Control Point HACCP allows control of the operating temperature recording any anomalies due to power failures or an increase in the temperature due to other causes breakages extreme operating conditions user errors etc Two types of HACCP event are managed e type HA alarms high temperature during the operation type HF alarms high temperature after power failure blackout When an alarm is recorded the HACCP LED flashes the display shows the alarm code the alarm is saved and the alarm relay and buzzer are activated Example display after HA error and alarm reset To display the HA and HF alarms enter the HACCP menu by pressing SET AUX NJ iN J DEF v e scroll the list of alarms by pressing UP and DOWN e press Set to select the required alarm HA HAT HA2 HF HF1 HF2 e use UP or DOWN to see the description of the alarm year month day hours minutes and duration in minutes of the selected alarm press Prg mute again to return to the previous list In addition the HACCP alarm menu allows the following operations e delete the HACCP alarm signal by pressing for 5 seconds SET AUX NJ N J DEF delete the HACCP alarm and all the alarms saved by pressing for 5 seconds ZN SET AUX DEF a F v This procedure displays the message rES deletes the entire memory of alarms and reinitialises monitoring of the HACCP alarms ir33plus 03Z002
41. Fig 6 m from the keypad Key CMP_ Compressor Refri Coolin The defrost ends V_Pd_ Pump down valve Pump down Pump down stage e when the defrost probe measures a temperature greater than the end FAN Evaporator fan Def Defrost defrost temperature dt1 aoa sue A e when no defrost probe is used the defrost ends after a maximum time vaporator ost drip ost drippin C ES 52 Defrost a pene Palemeterar V2 Thermostatic expansion valve L Liquid receiver F Filter drier S Liquid gauge t Time Maximum time between consecutive defrosts O Par Description Def Min Max UOM Note dl Maximum time between consecutive defrosts 8 0 250 hr in pump down mode the behaviour of the fan is determined by F2 0 defrost not performed min in defrost the behaviour of the fan is determined by F3 Tab 6 k 2 Hot gas defrost d0 1 3 duty cycle The duty cycle refers to the default values of parameters F2 and F3 Parameter dl is a safety parameter used to perform cyclical defrosts every dl hours even without the Real Time Clock RTC It is also useful if the RS485 serial network is disconnected At the start of each defrost irrespective of the duration an interval starts being counted If this interval exceeds dl without a defrost being performed one is started automatically The count is always active even if the controller is OFF ir33plus 03Z0028EN rel 1 0 27 08 2014 Example if there is an RIC fault the defrost programmed
42. Ir33 lei Electronic controller Ens User manual LEGGI E CONSERVA QUESTE ISTRUZIONI 4 READ AND SAVE THESE INSTRUCTIONS High Efficiency Solutions CAREL IMPORTANT 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 final application despite the product being developed according to start of the art techniques The customer manufacturer developer or installer of the final 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 final installation and or equipment CAREL may based on specific agreements act 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 final equipment system The CAREL product is a state of the art product whose 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 Ea
43. LED Batteries discharged at The batteries are discharged the flashing start copy copy operation cannot be perfor med Replace the batteries Green LED Batteries discharged During the copy operation or at the flashing during copy oratend Jend of the operation the battery le of copy vel is low Replace the batteries and repeat the operation Red green Controller not compa The parameter set up cannot be LEDs flashing tible orange signal copied as the connected controller model is not compatible This error only occurs for the DOWNLOAD function check the controller P N and run the copy only for compa tible models Error in the data being copied The EEPROM on the controller is cor rupted therefore the data cannot be copied to from the key The copy operation was not com pleted due to a serious error when transferring or copying the data Repeat the operation if the pro blem persists check the key con nections Check the batteries Red and green Error in data being LEDs on copied Red LED on Data transfer error steady LEDs off Batteries disconnected Tab 2 b Note the DOWNLOAD operation normal or extended is possible even if the operating and control parameters are incorrect in this case they will be recovered from the key Be careful when recovering the unit parameters from a key as these determine the low level operation of the controller unit model type of interface
44. U insulation from extra low voltage parts to be guaranteed externally by safety transformer SELV Inputs S1 probe 1 INTC S2 probe 2 INTC DII voltage free contact contact resistance lt 10 Q closing current 6 MA S3 NTC DI2 voltage free contact contact resistance lt 10 Q closing current 6 mA S4 NTC Maximum distance between probes and digital inputs less than 10 m Note in the installation it is recommended to separate the power and load connections from the probe digital input display and supervi sor cables Probe type Std Carel NTC 10k Q at 25 C range from 50T90 C measurement error 1 C in the range 50T50 C 3 C in the range 50T90 C Relay depending on the model EN60730 1 UL 873 outputs model relay 250 V operating cycles 250 V operating cycles IREVxOExxU R3 5 1 A 100000 5 Ares 1 FLA 30000 6 LRA C300 IREVxOExxU R1 R2 8 4 A N O 6 4 A N C 100000 8 Ares 2 FLA 30000 IREVxO L H xxU R2 R3 R4 2 2 A NO N C 12 LRA C300 IREVxO L H xxU RI 12 2 AN O N C 100000 30 LRA C300 insulation from extra low voltage parts reinforced 6 mm clearance 8 mm creepage 3750 V insulation insulation between independent relay outputs basic 3 mm clearance 4 mm creepage 1250 V insulation Connections Cable cross section from 0 5 to 2 5 mm2 max current 12 A Relay not suitable for fluorescent loads neon lights etc that use starters ballasts with phase shifting capacitors Fluorescent lamps with electronic controllers
45. ar d10 d1 1 31 7 PARAMETER TABLE 32 7 14 Variables only accessible via serial CONNECTION 36 8 SIGNALS AND ALARMS 37 M Lila 37 GZ PATIOS PP EE ne 37 5 odia 37 94 FACEPaMiMS and ISO ar 8 5 Alarm parameters and activation 39 8 6 HACCP alarm parameters and monitoring 39 8 7 High condenser temperature alarm ooo zeanwwzanaaanaaa 40 BO FIOSEPIOICC NAM 40 8 9 Defrost ended by timeout alarm iii 40 5 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL ir33plus 03Z0028EN rel 1 0 27 08 2014 6 CAREL 1 INTRODUCTION The ir33 platform for refrigeration applications comprises a series of microprocessor based parametric electronic controllers with LED display designed to control stand alone refrigeration units These controllers are especially suitable for applications requiring high load switching power functions and control with direct access from the keypad high IP ingress protection and compact dimensions In terms of reliability all the controllers are fitted with an electronic device watchdog that prevents the microprocessor from losing control even with high levels of electromagnetic disturbance The ir33 platform is made using the most advanced SMD technology and electrical testing of all the components fitted guarantees high quality standards In summary up to 4 relay outputs on the more complete models compressor fan defrost AUX e panel installation front pa
46. are off e the buzzer and the alarm relay are deactivated e the controller does not perform the control functions defrosts continuous cycle signal temperature alarms and all other functions the compressor protection times are observed When the controller is switched back on all the functions are re activated with the exception of e defrost on start up compressor and fan delay at power on Note the ON OFF from external digital input has priority over the keypad and the supervisor 7 Curtain switch If the input is selected as a curtain switch the controller modifies the set point when the contact closes adding the value of parameter r4 the new value is then used for all the functions relating to the set point e g relative high and low temperature alarms control with dead band control with two compressor steps etc For example when r4 3 0 default value the set point is increased by 3 degrees from the value used when the curtain is open Par Description Def Min Max UOM r4 Automatic night time set point variation 3 20 J20 torr Tab 5 f CMP FAN DI OPEN CMP FAN DI CLOSED ON Fig 5 d CAREL Key St Set point rd Differential CMP Compressor FAN Fan Sv Virtual probe r4 Automatic night time set point variation Note if one of the auxiliary outputs is used to manage the light lowering the curtain automatically switches the light off while
47. assumed that if the evaporator temperature measured by probe Sd remains continuously below a certain set threshold d11 for a certain time d10 the evaporator may be frozen and a defrost is activated The time is reset if the temperature returns above the threshold Par Description Def Min Max UOM d10 Defrost time in Running time mode 0 0 250 hour 0 function disabled d11 Running time defrost temperature threshold 1 20 20 C F Tab 6 p dt1 Sd d11 ON DEF OFF Fig 6 t Key Sd Defrost probe t time DEF Defrost ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 7 PARAMETER TABLE Default settings table Part number Default settings IREVMOLNOU IREVMOENOU E IREVSOLNOU Def 1 IREVSOEAOU Def 1 IREVCOLNOU Def 2 IREVCOLCOU Def 2 IREVCOHNOU Def 2 IREVCOHCOU Def 2 IREVFOENOU Def 2 Key Parameter type Variable type Noted C Configuration A analogue e MSYFCH parameter visible on models IREVM IREVS IREVY IREVF IREVC and PBEVH F frequent integer The grey rows in the table denote masked parameters D digital User Par Description Models Def Min Max UOM Type CAREL SVP ModBus R W Pro N C 2 Probe m
48. ch CAREL product in relation to its advanced level of technology requires setup configuration programming commissioning to be able to operate in the 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 In addition to observing any further warnings described in this manual the following warnings must be heeded for all CAREL products Prevent the electronic circuits from getting wet Rain humidity and all types of liquids or condensate contain corrosive minerals that may damage the 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 temperatures 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 limits specified in the manual Do not attempt to open the device in any way other than described in the manual Do not drop hit or shake the device as the
49. d directly into the programming key connector this provides connection to the PlantVisor supervisory system The accessory has been designed as a plug in addition to the controller and consequently can be installed following installation if needed Model IROPZ485S0 features a microprocessor and can automatically recognise the TxRx and TxRx signals reverse connection Fig 1 h VPM programming tool Visual Parameter Manager The program can be downloaded from http ksa carel com The tool runs on a computer and is used to set up the controller change the parameter settings and update the firmware The USB I2C converter P N IROPZPRG00 is required USB I2C converter and cable P N IROPZPRGOO Converter used to connect a personal computer to an IROPZKEY00 AO programming key and consequently use the VPM program Visual Parameter Manager to read set and write the parameters The programming key can then be used to program the controllers or read the controller parameters and for example copy a configuration from one controller to the others Light sensor P N PSOPZLHTOO To be installed in the door jamb or inside the cold room Fig 1 k CAREL 2 INSTALLATION 2 1 Dimensions STEP2 Apply the side fastening brackets to the controller and use the screws to ir33 fasten it to the panel
50. d with at least 1 auxiliary relay programmed as a light output e the reading is displayed and the A icon flashes the temperature alarms are disabled When the door is closed the first time the controller maintains the previous situation the compressor and the evaporator fans stay off e the light stays on e the reading is displayed and the A icon flashes the temperature alarms are disabled Door opened the second time no change When the door is closed the second time the controller resumes normal operation switching off the light and enabling the temperature alarm after the delay time d8 When the compressor re starts any set protection times must elapse first see the C parameters If after opening the door remains open for a time longer than d8 or d8d the controller resumes normal operation compressor and evaporator fan switched on if needed e light off the reading on the display flashes e the buzzer and the alarm relay are activated e the temperature alarms are enabled with the delay Ad e when the door closes the high temperature alarm bypass time after door open d8 is not set To stop the reading from flashing close the door If after being closed for the first time the door remains closed for longer than time d8 or d8d the controller resumes normal operation compressor and evaporator fan switched on if needed e light off e the temperatur
51. d1 Defrost on evaporator 1 ended by timeout Ed2 Defrost on evaporator 2 ended by timeout On Switch ON OFF Switch OFF rES a Reset alarms with manual reset Reset HACCP alarms Reset temperature monitoring AUX Auxiliary output activation call d 1 Display defrost probe 1 Tab 8 a 8 2 Alarms There are two types of alarms system EEPROM communication HACCP high HI and low LO temperature control pump down ended by timeout Pd low pressure LP The EE EF data memory alarms shutdown the controller The auxiliary digital output AUX can be configured to signal the alarm status normally open or normally closed See chapter 5 The controller indicates alarms due to faults on the controller itself on the probes or in network communication An alarm can also be activated from an external contact immediate or delayed See paragraph 5 2 The display shows IA or dA and at the same time the bell icon flashes and the buzzer is activated If more than one error occurs these are displayed in sequence Example display after HI error Note to mute the buzzer press Prg mute 37 8 3 Reset alarms All the alarms with manual reset can be cleared by pressing Prg mute and UP together for more than 5 seconds Example manually reset the frost protection alarm AFr 8 4 HACCP alarms and display To activate monitoring see par 8 6 HACCP Hazard Analysis and
52. dards Tab 9 a 41 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 10 APPENDIX 1 VPM VISUAL PARAMETER MANAGER 10 1 Installation Go to http ksa carel com and select the following path Software amp Support Configuration amp Updating Softwares Parametric controller software then select Visual Parametric Manager A dialogue box is opened with the possibility to download 3 files 1 VPM_CD zip for burning a CD DVD 2 Upgrade setup 3 Full setup this is the complete program For first installations select Full setup for upgrades select Upgrade setup The program is installed automatically by running setup exe A Important if deciding to run the complete installation Full setup uninstall any previous versions of VPM 10 2 Opening the program Programming can be performed using the key IROPZKEYAO connected to the computer via the converter IROPZPRG00 When opening the VPM program choose the device to be configured ir33 The Home page is displayed with the options to create a new project or open an existing project Choose new project and enter the password which can be set as desired by the user the first time Select the OEM profile Accessible parameters 0 148 0 Fig 10 a Then 1 upload the control parameters to the key as described in chapter 2 2 read the parameters from the key 10 3 Computer key connection To connect the computer to the key e Select the li
53. defrosts on units accessible to the public during opening times 4 Start defrost from external contact Application this function is useful for performing defrosts in real time To perform the defrosts connect a cyclical mechanical or electronic timer to the selected digital input a series of units can be connected to the same timer setting different values for parameter d5 defrost delay from multifunction input to avoid simultaneous defrosts A Important for 12 Vac and 12 24 Vac versions When connecting a series of units to the same timer the best solution is to insulate all the contacts galvanically inserting an intermediate relay for each contact ON TIMER OFF ON UNIT 1 DEFROST d5 1 0 OFF On UNIT 2 DEFROST OFF LA UNIT 3 ON DEFROST se OFF dP 1 5 dP 2 dp 4 d5 2 d5 3 i Fig 5 b Key dP Maximum defrost duration d5 Defrost delay from digital input UNIT 1 3 Unit 1 3 t Time 5 Door switch with compressor and evaporator fan off Parameter d8 defines the high temperature alarm bypass time after the defrost ends or the door is opened Parameter d8d is the alarm bypass time after the door is opened If d8d 0 the alarm delay after door open coincides with the value of parameter d8 Setting A4 5 manages the cold room door switch The behaviour of the door switch depends on the status of the light when the door is opened 1 light off 2 ligh
54. dress for the serial connection to a supervisory and or telemaintenance system Def Min 195 0 Max UOM 207 Par Description HO Serial address Tab 4 e Temperature unit of measure and decimal point display The following settings are available e choose the temperature unit of measure between degrees Celsius C and Fahrenheit F e enable disable the decimal point on the display and the buzzer Par Description Def Min Max UOM 5 Temperature unit of measure 0 0 EL le 6 Display decimal point 0 0 1 0 1 yes no H4 Buzzer 0 0 0 1 enabled disabled Tab 4 f Lock keypad and disable buttons Certain functions regarding the use of the keypad can be disabled for example parameter and set point settings if the controller is accessible to the public In addition an individual button or group of buttons can be disabled Par Description Def Min Max UOM H2 Disable keypad functions 1 0 6 H6 Terminal keypad lock configuration 0 0 20 0 all buttons enabled Tab 4 9 Functions that can be disabled on the keypad A Important if setting H2 1 3 the type F parameters cannot be set but rather only their values can be displayed Type C parameters being password protected can always be set on the keypad following the procedure described in chap 3 If set point and F parameter setting is disabled the set point and the
55. e alarms are enabled with the delay d8 e the high temperature alarm bypass time after door open dB is set If after the door is closed for the first time the light is switched off manually the controller resumes normal operation compressor and evaporator fan switched on if needed e light off e the temperature alarms are enabled with the delay d8 e the high temperature alarm bypass time after door open dB is set ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL Note e if the light was previously switched on manually when the door is closed for the second time it is automatically switched off even if the evaporator fan is managed by the fan controller see the F parameters the fans are forced to stop when the door is open This algorithm resolves any problems relating to faults or malfunctions of the door switch Fig 5 c Note if more than one digital input is configured as a door switch the door is considered open when at least one of the inputs is open 6 Remote On Off The digital input may be programmed also as remote ON OFF When the control is in OFF e the temperature is displayed alternating with the message OFF the internal timer for parameter dl is updated If dl expires when the unit is OFF a defrost is performed when the unit is switched on again e the auxiliary relay set as auxiliary and light output is active the other auxiliary Outputs
56. e the alarm code and the alarm output if set remain active until the value measured is outside of the activation threshold For delayed alarms from digital input A4 2 code dA the contact must remain open for a time greater than A7 In the case of an alarm event a counter starts and generates an alarm when reaching the minimum time A7 If during the count the value measured returns within the threshold or the contact closes the alarm is not signalled and the count is reset When a new alarm condition occurs the count starts from 0 again Parameter A6 has a similar meaning to parameter c4 duty setting If an external alarm occurs immediate or delayed the compressor works for a time equal to the value set for A6 and remains off for a fixed time of 15 minutes LO HI ON ALARM OFF AO AQ SI AL AH Fig 8 a Key LO Low temperature alarm S1 Control probe HI High temperature alarm 8 6 HACCP alarm parameters and monitoring HA alarms The alarm queue can be displayed by accessing parameters HA to HA2 The type HA alarm is generated if during normal operation the temperature read by the control probe exceeds the high temperature threshold for the time Ad Htd Consequently compared to the normal high temperature alarm already signalled by the controller the tyoe HA HACCP alarm is delayed by a further time Htd specifically for HACCP recording The order of alarms listed is progressive HA is the most recen
57. easurement stability MSYFCH 4 1 15 15 115 R W s 3 Probe display stability MSYFCH JO 0 5 16 116 R W Value Display delay s Value Display delay s 0 disabled 8 50 1 5 9 60 2 10 10 75 3 15 11 90 4 20 12 105 5 25 13 120 6 30 14 150 7 40 15 180 C 4 Virtual probe composition MSYFCH 0 0 100 l 17 117 R W 0 Control probe S1 100 Probe S2 C 5 Temperature unit of measure 0 C 1 F MSYFCH l0 0 1 D 40 40 R W C 6 Display decimal point 0 1 no yes MSYFCH 0 0 1 D 4 4 R W C tl Display on user terminal MSYFCH 1 7 gt 18 118 R W 1 Virtual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe 2 7 Set point 4 Probe 3 C ME Reading on remote display MSYFCH JO 0 6 19 119 RAW 0 Not fitted 4 Probe 3 1 Virtual probe 5 Probe 4 2 Probe 1 6 Reserved 4 Probe 3 C IP Type of probe MSYFCH 0 0 2 20 120 RAW 0 NTC Standard Range 50T90 C 1 NIC Enhanced Range 40T150 C gt A2 Probe 2 configuration 52 YFCH 2 0 4 21 121 RAW O Absent 3 Condenser 1 Product display only 4 Frost MS 0 0 4 7 21 121 R W 2 Defrost C A3 Probe 3 configuration S3 DI1 MSYFCH JO 0 4 22 122 R W 0 Digital input 1 3 Condenser 1 Product display only 4 Frost 2 Defrost C A4 Probe 4 configuration S4 DI2 MSYFCH JO 0 4 23 123 R W O Digital input 2 3 Condenser 1 Product display only 4 Frost 2 Defrost E c1 Probe 1 calibration MSYFCH 00 20 20 A 11 11 R W C2 Probe 2 calibration MSYFCH J00 20 20 A 12 12 R W C
58. ected to select heating or cooling operation ra 0 1 2 CMP FAN pl CLOSED 3 0 1 2 CMP FAN ON DIOPEN rd mM I t DIRECT REVERSE Fig 5 f Key l Set point Sv Virtual probe rd Differential CMP Compressor FAN Fan 11 Light sensor The digital input is used to read a light sensor P N PSOPZLHTOO actually an analogue input from which a digital signal is taken using the parameter or threshold of the light sensor The light sensor can be located in the door jamb ref A inside the cold room or cabinet ref B Par Description Def Min Max UOM AF Light sensor OFF time 0 0 250 15 0 Sensor in the door jamb gt 0 Sensor inside the cold room or cabinet Jal Tab 5 9 Fig 5 9 A AF 0 B AF 1 Light sensor The sensor signals The sensor signals the opening of the signal the opening and door and detects light inside the cabi closing of the door net cold room The sensor also signals closing of the door Inside light on With the door open If the sensor detects light Inside light off With the door Closing of the door is measured by closed minimum off time as the inside light will illuminate time of 5 s to avoid the sensor After the time AF gt 0 the rapid successive inside light is switched off for 5 secon impulses of the light ids If the light sensor signals darkness relay the door must be closed and the light will therefore
59. ej NO NO Sud wieje aimeloduue UBIH IH 2 gt z z M a 2 woine NO NO Sud wlJeje sin elsdus MO O1 2 3 wolne 440 110 Sud Ney 7S SqOld wone 440 110 Sud NEJ ES 9QO1d cd 3 2NEWOINE 440 110 Sud NEJ CS sqold E 49 69 za bumas Ainp 440 440 440 2 Bumos Anp Bulnes Anp wolne 110 440 Sud Ney LS 9qold 03 9 SFX bumas Np 440 440 440 pd bumas np po Bumes Anp woine NO NO Sud nej 2q01d 01 UOD ENLI J e ms 1 UY FUOZ Kejdsip days Ayeixne jeams quy jesjneu 9A SUEJ SUEJ Ke al Kejdsip uo uo puodas XNY XNV 34611 XNY XNV snonuljuo Jasuapuoy JojelodeA 1S01 9Q 10Ssa1dW0 SAJEA Gd lossy lszzng luuejy Buyse uon wieje s U JO asne gt apo 38 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 8 5 Alarm parameters and activation AL AH is used to determine the activation threshold for the low high temperature alarm LO HI The value set for AL AH is continuously compared against the value measured by the control probe Parameter Ad represents the alarm activation delay in minutes the low temperature alarm LO is activated only if the temperature remains below the value of AL for a time greater than Ad The alarm may relative or absolute depending on the value of parameter A1 In the former case A1 0 the value of AL indicates the deviation from the set point and thus the activation point for the low
60. el 1 0 27 08 2014 ON CP2 OFF ON CP1 OFF rd 2 rd 2 St Fig 11 c Key Sv _ Virtual probe CP2 Compressor 2 CP1 Compressor 1 rd Differential t time St Set point Examples of operation EXAMPLE 1 EXAMPLE 3 REQ1 REQ2 CP1 Fig 11 f EXAMPLE 4 ON REQ1 OFF t ON REQ2 OFF ON CP1 OFF ON CP2 OFF Key REQ1 compressor 1 call CPI compressor REQ2 compressor 2 call CP compressor 2 t time ir33plus 03Z0028EN rel 1 0 27 08 2014 46 CAREL 12 APPENDIX 3 FOOD SAFETY HACCP 12 1 Food safety HACCP This instrument makes a significant contribution to ensuring optimum preservation of foodstuffs that need to be stored at controlled temperatures The following suggestions will allow the device to be used in the best possible way and ensure the desired features over time Local standards may specify additional requirements national certification or more rigorous documentation to be completed and kept on file In case of doubt contact the food safety manager or site manager 12 2 Sensors installation Temperature sensors are fundamental components of the measuring system Make sure these are checked periodically in accordance with the application When temperature measurement is significant for food safety only use the temperature probes suggested by Carel for food storage applications All Carel NTC probes are approved in accorda
61. elected for parameter tl alternating with OFF The digital input can be used to switch the controller on off setting parameter A4 A5 to 6 Switching on off from digital input has priority over the same function from the supervisor and the keypad Source Priority Note Digital input 1 Disable On Off from keypad and supervisor Keypad 2 Supervisor 3 Tab 6 a 6 2 Virtual probe The control output is the compressor output which in most cases is also associated with the evaporator fan output The control probe is probe S1 while probes S2 53 54 can be assigned functions such as product probe display only defrost probe condenser probe or frost protection probe For vertical display cases the virtual probe Sv should be defined as the control probe this represents the half way point between the display case outlet and intake probes and the reading is thus affected by the environmental conditions During the day the display case light is on and the curtain is open to allow customers to take out the products store at night the curtain is closed and the light is off Due to the lower heat load at night the night time set point is increased by the value of parameter r4 Par Description Def Min Max UOM St Set point Def 1 Def 2 M 2 PC 2 18 r4 Automatic night time set point 3 0 20 20 PEF variation 4 Virtual probe composition 0 0 100 0 control probe S1 100 probe S2
62. for 3 s e the code of parameter d 1 is displayed flashing continue holding the buttons until the value measured by the defrost probe is displayed e release the buttons e the standard display is shown again after 10 s ir33plus 03Z0028EN rel 1 0 27 08 2014 16 Auxiliary light output activation Activation from the keypad for automatic activation from scheduler see the second example in paragraph 3 5 To activate the auxiliary H1 2 and or light output H1 3 from the keypad e press AUX and or T if present the message AUX flashes on the display for 1 s e press and hold until activating the output and the corresponding icon on the display which then shows the standard display Auxiliary output active Light output active Press AUX to deactivate the AUX or light output Probe calibration Parameters c1 to c4 are used are used to calibrate the first second third and fourth temperature probe respectively Access the parameters and then set the required values When pressing Set after having entered the value the display does not show the parameter but rather immediately shows the new value of the probe reading being calibrated This means the result of the setting can be checked immediately and any adjustments made as a consequence Finally press Prg for 5 seconds to save the value of the parameter HACCP menu The contro
63. he type of defrost heater or hot gas set the temperature unit of measure C or F e the protection functions delay at start up rotation minimum on and off times for the outputs are active Note all the alarms with manual reset can be reset by pressing the Prg and UP buttons together for more than 5 seconds See the chapter on Alarms ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 5 FUNCTIONS 5 1 Probes analogue inputs The ir33 platform controllers feature a maximum of 4 analogue inputs which are used for NTC high temperature NTC NTC Enhanced Range or PIC temperature sensors see the note below Probes S3 and S4 can also be configured as digital inputs Probe ST is the control probe and its function cannot be changed the functions of probes S2 S3 S4 can be selected using parameters A2 A3 A4 The probes can be calibrated to adjust their readings In particular parameters c1 to c4 are used to increase or decrease the values read by the probes connected to inputs S1 52 53 and S4 across the entire the range of measurement For the calibration procedure see paragraph 3 5 Par Description Def Min Max UOM P Type of probe 0 0 2 0 NTC Standard Range 50T90 C 1 NTC Enhanced Range 40T150 C c1 Probe 1 calibration 0 20 20 c2 Probe 2 calibration 0 20 20 c3_ Probe 3 calibration 0 20 20 c4_ Probe 4 calibration 0 20
64. ibutor at the end of its working life when buying new equipment 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 the symbol crossed out wheeled bin shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately in the event of illegal disposal of electrical and electronic waste the penalties are specified by local waste disposal legislation Warranty on the materials 2 years from the date of production excluding consumables Approval the quality and safety of CAREL INDUSTRIES Has products are guaranteed by the ISO 9001 certified design and production system WARNING 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 NO POWER amp SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL ir33plus 03Z0028EN rel 1 0 27 08 2014 4 CAREL Content 1 INTRODUCTION 7 9 TECHNICAL SPECIFICATIONS 41 KT Uda 7 9 1 ir33 technical Specifications 41 Po 8 10 APPENDIX 1 VPM VISUAL PARAMETER MANAGER 42
65. ightening torque to less than 0 5Nm separate as much as possible by at least 3 cm the probe signal and digital input cables from inductive loads and power cables to avoid any electromagnetic disturbance Never lay power cables and probe cables in the same cable conduits including those for the electrical panels Do not install the probe cables in the immediate vicinity of power devices contactors circuit breakers or the like Reduce the length of the sensor cables as much as possible and avoid spirals around power devices e only use IP67 guaranteed probes as end defrost probes place the probes with the vertical bulb upwards so as to facilitate drainage of any condensate Remember that thermistor temperature probes NTC have no polarity so the order the ends are connected in is not important A Important for 12 24 Vac versions When connecting a series of units to the same timer insulate all the contacts digital inputs galvanically inserting an intermediate relay for each contact Cleaning the controller When cleaning the controller do not use ethanol hydrocarbons petrol ammonia and by products Use neutral detergents and water 2 7 Programming key IROPZKEY00 A0 The programming key can load up to 7 different parameter configurations onto the controller the controller operating parameters plus 6 sets of customisable default parameters The keys are plugged into the connector 4 pin AMP available on the controller
66. ir33plus 03Z0028EN rel 1 0 27 08 2014 28 CAREL Sd must be installed or by time In the first case the defrost ends when the defrost probe Sd exceeds the end defrost value dt1 or the time dP1 has elapsed in the second case when the defrost procedure exceeds the maximum time dP1 At the end of the defrost the dripping stage may begin if dd gt 0 during which the compressor and the fans are off followed by the post dripping stage if Fd gt 0 during which control resumes with the fans off The type of display on user terminal and the remote display during the defrost can be selected by setting parameter d6 Par Description Min Max UOM dO Type of defrost 0 0 4 0 Heater by temperature 1 Hot gas by temperature 2 Heater by time Ed1 Ed2 not shown 3 Hot gas by time Ed1 Ed2 not shown 4 Heater by time with temperature control Ed1 Ed2 not shown dti End defrost temperature probe 2 4 5 200 CZE dt2 End defrost temperature probe 3 aux eva 4 200 Orr orator dP1 Maximum defrost duration 30 J 250 min s dP2 Maximum aux evaporator defrost duration 30 J1 250 min s d Terminal display during defrost 1 0 2 0 Temperature alternating with dEF 1 Display disabled 2 0EF Tab 6 Note dt3 is as masked parameter and can be made visible using the VPM tool dt1 ON DEF OFF ON DEF OFF ON DEF OFF dP1 4 gt
67. ity of such damage HACCP WARNING The Food Safety programs based on HACCP procedures and on certain national standards require that the devices used for food preservation are periodically checked to make sure that measuring errors are within the allowed limits for the specific application Carel recommends compliance with the specifications of European standard Temperature recorders and thermometers for transport storage and distribution of chilled frozen deep frozen quick frozen food and ice cream PERIODIC VERIFICATION EN 13486 2001 or subsequent updates or similar standards and requirements applicable in the country of use The manual contains further information regarding technical feature s proper installation and product configuration 3 HACCP International Food Safety Certification Systems ia This product is approved for the use in food preservation applications Ain compliance with the strictest standards in the sector DISPOSAL INFORMATION FOR USERS ON THE CORRECT HANDLING OF WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT WEEE In reference to European Union directive 2002 96 EC issued on 27 January 2003 and the related national legislation please note that WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately the public or private waste collection systems defined by local legislation must be used In addition the equipment can be returned to the distr
68. ller must be fitted with the RTC real time clock To enter the HACCP menu press the combination button shown the table below for 1 s press UP DOWN to display the parameters in the HACCP category e press PRG for 5 seconds to return to the standard display Minimum and maximum temperature monitoring The controller can record the minimum and maximum temperature measured by the control probe over a period of up to 999 hours more than 41 days To enable monitoring enter programming mode as explained in the corresponding paragraph set r5 1 e select rt CAREL press SET VY DEF This displays how long minimum and maximum temperature monitoring has been active if recording has just been enabled rt 0 to restart temperature recording press for more than 5 s FTA AUX LY v The message rES indicates that the log has been deleted The controller resets the total hours and restarts monitoring press Set to return to the list of parameters to display the maximum temperature measured by the probe read the value associated with parameter rH to display the minimum temperature measured by the probe read the value associated with parameter rL gt NAA after the maximum time of 999 hours minimum and maximum temperature monitoring continues while the time interval remains fixed at 999 A Important the values of parameters rt rL and rH are saved to the c
69. mperature even below the set point The continuous cycle is stopped after the time cc or when reaching the minimum specified temperature corresponding to the minimum temperature alarm threshold AL If after the end of the continuous cycle the temperature falls by inertia below the minimum temperature threshold the low temperature alarm signal can be ignored by suitably setting parameter c6 alarm bypass after continuous cycle 1 Par Description Def Min Max UOM CC Continuous cycle duration 0 0 15 hour c6 Low temperature alarm bypass time after 2 0 250 hr continuous cycle min Tab 6 f 6 7 Anti sweat heater When the unit is powered on the compressor is activated in cooling mode and the AUX and light outputs are disabled until the control probe measures a value less than St Hdh The aim is to prevent the light or the heater connected to the AUX output from adding heat and contrasting the work done by the compressor When the function is active the display shows the corresponding icon flashing Par Description Def Min Max UOM Hdh Anti sweat heater offset 0 50 1200 1G E 0 anti sweat heater function disabled C 32 anti sweat heater function disabled F Tab 6 9 The following example refers to the configuration where Hdh 2 and St 0 with activation of the auxiliary output H1 2 CMP FAN OFF ON AUX LIGHT OFF V St Hdh
70. ms activated press Set MSYFCH R HA2 V__ years 70 76 82 170 R M month 71 77 83 171 R o Alarm 1 to 3 Day of the month day 72 78 84 172 R h Alarm 1 to 3 Hour hour 73 79 84 173 R n Alarm 1 to 3 Minute minute 4 80 85 1 4 R t Alarm 1 to 3 Duration hour I 75 81 86 175 R HFn Number of HF alarms MSYFCH 68 Mods JR C HF HF2 HF HACCP alarms activated press Set MSYFCH R V__ Alarm 1 to 3 Year 0 0 99 years I 88 94 100 188 R M_ Alarm 1 to 3 Month 0 1 12 month 89 95 101 189 R d__ Alarm 1 to 3 Day ofthe month 0 1 7 day 90 96 102 190 R h__ Alarm 1 to 3 Hour 0 0 23 hour 91 97 103 191 R nN Alarm 1 to 3 Minute 0 0 59 minute 92 98 104 192 R t_ Alarm 1 to 3 Duration 0 0 99 hour 93 99 105 1193 R C Htd HACCP alarm delay MSYFCH 0 0 250 min 69 169 R W 0 Monitoring disabled 35 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL User Par Description Models Def Min Max UOM Type CAREL SVP ModBus R W NA rtc C td1 8 Defrost 1 to 8 press Set ECH s 5 gt RAW d Defrost 1 to 8 day 0 0 11 day 106 109 127 206 209 227 R W h__ Defrost 1 to 8 hour 0 0 23 hour 107 110 128 207 210 228
71. nce with HACCP International Food Safety Certification Systems for application in FZS Food Zone Secondary Models NTC INF FZP Food Zone Primary Models NTC PS SSZ Splash or Spill Zone Excluding only NTC HT specific models for high temperatures 12 3 Parameters Modification of parameters that affect temperature measurement and display may not be allowed in certain applications or alternatively may require specific authorisation Any modifications made must be noted on the relevant documents refer to HACCP procedures where envisaged In case of doubt contact the food safety manager or site manager 12 4 Repairs and maintenance All significant maintenance operations generally require a new periodic verification to be carried out in order to confirm that the devices operating specifications are still within the limits required by the application We recommend that written documents be kept on the operations performed clearly identifying e The instrument in question e g part number serial number e The unit it is used on e g meat cold room no 3 cheese showcase NO 7 ssa The reasons why maintenance was needed e Any actions performed to restore functionality The checks carried with reference to the procedures adopted e Identification of the primary measuring instruments used eg thermometer model serial number calibration certificate no xxx issued by laboratory yyy dentification
72. nel as standard e simple installation with two plastic fastening brackets buttons flush with the front panel to ensure high ingress protection IP65 and safety during operation and cleaning e bright 3 digit display with decimal point and icons to denote operating status e immunity to brief power interruptions if the controller detects that voltage drops below a certain threshold the display is temporarily switched off and the controller continues working normally e keypad with 4 buttons e defrosts can be activated from the keypad digital input supervisor management of various types of defrost on one or two evaporators natural stopping the compressor heater hot gas e advanced defrost functions e automatic recognition of the network protocol Carel or Modbus parameter selection simplified by different icons according to the category temperature control with virtual control probe and set point variation at night e digital inputs to activate alarms enable or activate defrosts door curtain switch auxiliary output on off etc control of 1 compressor with two steps or two compressors including rotation e keypad protection the functions of the individual buttons can be disabled to prevent unwanted tampering management of the light in the cabinet cold room and the curtain on the cabinet e VPM program Visual Parameter Manager running on a personal computer used to update the paramete
73. not performed min F dt End defrost temperature probe 2 SYECH 4 50 200 CZE_ A 23 23 RAW F dt2 End defrost temperature probe 3 aux evaporator SYFCH 4 50 200 C F_ IA 24 24 R W F dP1 Maximum defrost duration SYFCH 130 1 250 min s 39 139 RAW F dP2 Maximum aux evaporator defrost duration SYFCH 30 1 250 min s I 40 140 RAW C d3 Defrost activation delay SYFCH JO 0 250 min I 4 141 R W C d4 Defrost at start up 0 1 disabled enabled SRA 0 0 1 flag D 45 45 R W C d5 Defrost delay at start up if d4 1 or from dl SYFCH 0 0 250 min I 42 142 R W C d6 Terminal display during defrost SYFCH 11 0 2 43 143 R W 0 Temperature alternating with dEF 1 Display disabled 2 EF dd Dripping time after defrost fans off SYECH 2 0 15 min I 44 144 R W F d8 High temperature alarm bypass time after defrost and door SYFCH 1 0 250 hr 45 145 RAW open min C d8d__ Alarm bypass time after door open SYFCH 0 0 250 min I 139 239 RAW C d9 Defrost priority over compressor protectors SYFCH JO 0 1 D 46 46 RAW 0 1 yes no F d 1 Display defrost probe 1 MSYFCH CZE IA 1 1 R F d 2 Display defrost probe 2 MSYFCH a C F_ A 2 2 R C dC Time base for defrost SYFCH 0 0 1 D 47 47 RAW 0 dl in hours dP 1 and dP2 in minutes 1 diin minutes dP1 and dP2 in seconds E dCi _ Time base for c6 and d8 0 1 hours minutes SEO 0 1 D 65 65 R W d10 Defrost time in Running time mode0 function disabled SYFCH _ 0 0 250 hour I 46 146 R W C d11 R
74. ntroller on off and to activate of the auxiliary output Finally the controller can also be used as simple ON OFF thermostat for heating applications Example vertical display case and cold room Fig 1 b ir33plus 03Z0028EN rel 1 0 27 08 2014 1 2 Accessories IROPZKEY00 A0 programming key The IROPZKEY00 and IROPZKEYOOAO powered programming keys can be used with the ir33 platform controllers Visual Parameter Manager VPM allows up to 7 different configurations sets of parameters to be loaded onto the controller the controller operating parameters plus 6 sets of customisable parameters The read write operations are carried out with the controller off IROPZKEY00 IROPZKEYAO Fig 1 c Fig 1 d Connection cable P N PSTCONO BO Three wire cable to connect the controller to the tLAN interface card P N IROPZDSPOO Available in different lengths 1 5 3 5 m Fig 1 e tLAN interface card P N IROPZDSP00 The tLAN interface card for remote display is an electronic device used to connect the controller to a remote display See the instruction sheet 050003860 Fig 1 f Remote display The remote display can be used to display one of the system variables Versions are available for ir33 is IREVXGDOOO See the instruction sheet 050003920 IREVXGD000 Fig 1 g ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL RS485 serial interface P N IROPZ48500 and IROPZ485S0 Plugge
75. ofthe operator qualified responsible for verification and confirmation e Explicit confirmation of instrument validity until the next periodic verification or if the minimum specifications for use are no longer met the instrument must be downgraded repaired or replaced and taken out of service 47 12 5 Warning Local standards or system characteristics frequently require application of HACCP procedures Hazard Analysis and Critical Control Points Such procedures should be defined and managed by suitably trained personnel ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL ir33plus 03Z0028EN rel 1 0 27 08 2014 48 CAREL CAREL INDUSTRIES Headquarters Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 e mail carel carel com www carel com Agenzia Agency ir33plus 0370028EN rel 1 0 27 08 2014
76. ontrollers memory every hour If the controller is not connected to an uninterruptible power supply a temporary blackout may mean the values of rt rL and rH measured in the last hour will be lost When power returns the controller automatically restarts monitoring from the previously saved values 17 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL 4 COMMISSIONING 4 1 Configuration The configuration parameters are set when commissioning the controller and involve e date time setting if the clock is fitted RTC real time clock analogue probe measurement stability e probe display stability standard display shown on the controller and on the remote display and the decimal point e serial address for the supervisor network connection temperature unit of measure C F e lock keypad disable buttons and buzzer e display during the defrost Date time setting See example 1 in par 3 5 Analogue probe measurement stability Defines the coefficient used to stabilise the temperature measurement filtering the reading based on two algorithms e limitation of variation the maximum variation the value is limited so as to reduce impulsive disturbance e moving average this limits the effect of any noise superimposed over the temperature measurement that may negatively affect control performance Low values assigned to this parameter allow a prompt response of the sensor to the temperature
77. or without phase shifting capacitors can be used depending on the operating limits specified for each type of relay The correct sizing of the power and connection cables between the instrument and the loads is the installer s responsibility Depending on the model the maxi mum current at common terminals 1 3 or 5 is 12 A If using the controller at maximum operating temperature and at full load the cables used must be suitable for operation at least up to 105 C Clock error at 25 C 10 ppm 5 min year error at 25 C 10T60 C 50 ppm 27 min year Operating temperature 10T60 C for all versions Operating humidity lt 90 RH non condensing Front panel ingress protection assembly on smooth and indeformable panel with IP65 gasket Environmental pollution 2 normal situation PTI of insulating materials printed circuits 250 plastic and insulating materials 175 Period of stress across the insulating parts long Heat and fire resistance category category D and category B UL 94 V0 Class of protection against voltage surge category ll Type of action and disconnection 1 B relay contacts microswitching Construction of the control device built in electronic Classification according to protection against electric shock class Il when appropriately integrated Maximum distance between interface and display 10m Programming key available on all models Safety standards compliant with relevant European stan
78. otection probe Ifthis probe measures a temperature less than the threshold ALF for a time greater than AdF the alarm AFr manual reset is shown See the parameter table Par Description Def Min Max UOM ALF Frost protection alarm threshold 5 50 1200 CFF AdF Frost protection alarm delay 1 0 15 min Tab 8 d S ALF t ALARM ON AFr OFF gt AGF i p 2 Fig 8 e Key i Time AdF Frost protection alarm delay AEr_ Frost protection alarm threshold 8 9 Defrost ended by timeout alarm Alarms Ed1 and Ed2 signal that a defrost has ended when reaching the maximum defrost duration This can be disabled by setting A8 0 Par Description Def Min Max UOM A8 Enable alarms Ed1 and Ed2 end 0 0 250 min defrost by timeout 0 alarms disabled Tab 8 e CAREL 9 TECHNICAL SPECIFICATIONS 9 1 ir33 technical specifications Power supply Model Voltage Power IREVxOExxU 230 V 50 60 Hz 3 VA 25mA max IREVCOHxxU 115 230 V 50 60 Hz 6 VA 50mA max IREVxOLxxU 12 to 24V 50 60 Hz 12 30 Vdc 3 VA 300 mA mAdc max Insulation guaranteed IREVXOExxU insulation from extra low voltage parts reinforced 6 mm clearance 8 mm creepage 3750V insulation by the power supply IREVCOHxxU insulation from relay outputs basic 3 mm clearance 4 mm creepage 1250V insulation IREVxOLxx
79. parameters F4 and F5 After the compressor is first started the condenser fans are activated at F4 0 2 degrees to offset any rapid temperature increases that the probe cannot keep up with Subsequently the fans are switched on and off at F4 F5 and F4 Par Description Def Min Max UOM F4 Condenser fan deactivation temperature 40 50 200 C F F5__ Condenser fan activation differential s0 101 120 A F Tab 6 0 F4 Fo F4 0 2 F4 switch on t ON FAN OFF t Fig 6 r Key Sc _ Condenser probe Sv _ Virtual probe FAN Condenser fans t Time F4 Deactivation temperature F5 Differential Note if no condenser probe is selected the condenser fan output is deactivated 31 6 12 Duty setting par c4 If alarm rE virtual control probe fault is activated this parameter is used to ensure operation of the compressor until the fault is resolved As the compressor is no longer able to operate based according to the temperature due to the probe fault it is made to run cyclically with a running time equal to the value assigned to parameter c4 and a fixed OFF time of 15 minutes Par Description Def Min Max UOM c4 __ Compressor running time with duty setting 0 0 100 min ON CMP OFF Fig 6 5 6 13 Running time defrost par d10 d11 Running time is a special function that determines when the refrigeration unit needs defrosting In particular it is
80. protection alarm threshold MSYFCH 5 0 50 200 CZE IA 36 36 RAW C AdF Frost protection alarm delay MSYFCH 1 0 15 min ll 136 236 RAW ir33plus 03Z0028EN rel 1 0 27 08 2014 34 CAREL User Par Description IModels Def Min Max UOM Type CAREL SVP ModBus R W FAn 30 C FO Evaporator fan management FCH 0 0 2 58 158 R W 0 always on 1 activation based on Sd Sv difference between virtual probe and evaporator temperature 2 activation based on Sd evaporator temperature F F1 Fan activation temperature only if FO 1 or 2 FCH 5 0 50 200 C FIA 5 31 R W C F2 Evaporator fans with compressor off FCH 0 0 1 D 51 51 R W 0 See FO 1 Always off C F3 Evaporator fans during defrost 0 1 on off PCH 1 0 1 D 52 52 R W F Fd Post dripping time fans off FCH 1 0 15 min 59 159 R W C F4 Condenser fan deactivation temperature MSYFCH 140 50 200 CZEJA 32 32 RAW C F5 Condenser fan activation differential MSYFCH 5 0 0 1 20 CZEJA 33 33 R W User Par Description Models Def_ Min Max UOM Type CAREL SVP ModBus R W Aux CnF C HO Serial address MSYFCH 195 JO 207 60 160 R W C H1 AUX output configuration CH 1 0 13 J 61 161 R W 0 normally energised alarm 1 normally de energised alarm 2 auxiliary 3 light 4 auxiliar
81. raising it switches the light on 8 Low pressure switch input for pump down See par 6 4 Setting A4 8 manages the low pressure switch The low pressure alarm LP is signalled when the low pressure switch is activated e during normal control c7 0 with the compressor on or alternatively with pump down function configured c7 gt 0 if the pump down valve is open and the compressor is on The low pressure alarm signal is delayed by the time set for parameter A7 The low pressure alarm LP stops the compressor ON CMP OFF ON Pressure switch OFF HIGH Pump down valve LOW ON LP Alarm OFF I Fig 5 e Key CMP Compressor Pump down valve Pump down valve Pressure Switch Pressure LP alarm Low pressure alarm switch t Time A7 Alarm signal delay Note this parameter together with c7 c8 c9 and H1 allows management of the pump down algorithm see par 6 3 9 Door switch with fan off only Same as for option A4 5 with the difference being that when opening the door only the evaporator fan is switched off 10 Direct reverse operation A Important when A4 10 the status of digital input has priority over the setting of parameter r3 direct reverse operating mode When the contact is open the controller operates in direct mode cooling when the contact is closed in reverse mode heating A switch can therefore be conn
82. rameter Ado as shown in the previous table See the table at the start of this paragraph for details on the activation deactivation logic 5 3 Digital outputs The parameters in question concern the minimum on or off times of the same output or different outputs so as to protect the loads and avoid swings in control A Important for the times set to become immediately operational the controller needs to be switched off and on again Otherwise the timers will become operational when the controller is next used when the internal timer is set Relay output protectors parameters c7 c8 c9 Par Description Def Min Max UOM c0 Compressor fan and AUX start delay at power 0 0 15 min on ci Minimum time between successive compres 0 0 15 min sor starts c2_ Minimum compressor off time 0 15 min c3 _ Minimum compressor on time 0 0 15 min Tab 5 k ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL e c0 when the controller is powered on the compressor evaporator fans and auxiliary relay in neutral zone control H1 11 are started after a delay in minutes equal to the value assigned to this parameter The delay is used to protect the compressor against repeated starts in the event of frequent power failures cl defines the minimum time between two consecutive starts of the compressor c2 defines the minimum compressor off time c3 defines the minimum compressor on time Other
83. rator fan management 0 0 2 0 always on 1 activation based on Sd Sv difference between virtual probe and evaporator temperature 2 activation based on Sd evaporator temperature F1 Fan activation temperature only if FO 1 3 0 550 1200 FCZTF or 2 AO Alarm and fan differential 20 01 20 _ C F Tab 6 m FO 1 F1 F1 A0 ON i FAN OFF t FO 2 F1 F1 AO ON FAN OFF t Fig 6 q Key Sd __ Defrost probe AO Differential FAN Evaporator fans t Time F1 Fan activation temperature Sv __ Virtual probe CAREL The fan can be switched off in the following situations e when the compressor is off parameter F2 e during the defrost parameter F3 During the dripping period parameter dd gt 0 and the post dripping period parameter Fd gt 0 the evaporator fans are always off This is useful to allow the evaporator to return to temperature after defrosting thus avoiding blowing warm hot and moist air into the refrigerator The evaporator fans can be forced on during normal control parameter F2 and during defrost parameter F3 Par Description Def Min Max UOM dd Dripping time after defrost fans off 2 O 15 min F2 Evaporator fans with compressor off 0 00 1 0 See FO 1 Always off F3 Evaporator fans during defrost 1 0 J 0 1 on off Fd_ Post dripping time fans off 1 0 15 min Tab 6 n 6 11 Condenser fans The condenser fans are activated based on
84. re time Tab 6 d Note c8 is a masked parameter and can be made visible using the VPM tool Fig 6 f ir33plus 03Z0028EN rel 1 0 27 08 2014 26 CAREL Key CMP Compressor P__ Low pressure switch C__ Condenser F__ Filter drier L Liquid receiver E Evaporator V2_ Thermostatic expansion valve S Liquid gauge PDV Pump down valve Pump down can be selected e by pressure pressure switch required when the pump down valve closes the compressor continues operating until the pressure switch measures the defined low pressure value The compressor is then stopped If the pressure switch does not measure the defined value before c7 elapses the Pd alarm pump down ended by timeout is activated e by time pressure switch optional when the valve closes the compressor continues operating for the time c7 or until reaching the low pressure value The Pd alarm pump down ended by timeout is not activated c10 0 Pump down by pressure Pressure switch activated before c7 Pressure switch activated after c7 A ON CMP FAN OFF I l ON 7 VPD OFF ON PRESSURE SWITCH i OFF ON ALARM Pd OFF Key CMP FAN Compressor fan c Maximum pump down time VPD Pump down valve Pd Pump down alarm Pressure switch Pressure switch t Time SV Virtual probe 6 5 Autostart in pump down As seen in the previous paragraph
85. rente W aA Selon off n i Poem D a as Purto kareas i a Patra tl Di w mit nb I FACE dh SR PE BE 3 10 7 Write parameters uF Selawe fife d area NI Le z a Piitan e i oe eae a ee e da conan onde dn ae ai 4 To write the parameters to the controller ina Doiii LI Di i o Pam n E 1 U aus Confine sonde O 4 0 Mateo il e Write the parameters to the key by selecting Write fia JEL Cam teh parl i ail n Print W G EF Caib ar kra a l a Pree ty i iha Cai an pee 1 aa m a Fiad D al mka Taa agora porz A a m u Passa D mj de Car ancre w r sa m a Pt er a i Ser pant i i Prequacie is ii fie chp Segoe oe ni m J Preuss F i tire Zana naru D iq i Pare i w ms Delta rapo tora reverse coni sora mmr Di m i Pama z a Meri SET er eric tel RZ Pons Srp a met SET feriti errant a a i Prises si si Fig 10 g Cor outcom Configurazione uscita compressore 10 5 Modify a parameter Fig 10 k Move the cursor to the Written column and double click the cell enter e Transfer the parameters from the key to the controller using the the new value Download function as described in the chapter on Installation JE Sade piii 1 15 a la dn balera a Sr 8 15 Parad dr Sonda tin E HED G Farmed a w an ares oT n I D Pace o a Er Punta do o Paired di al whi taj i Car ar PC Fa i LJ 1 Preece dd l u iz dawa fi Dee HT B 8 B Piiri wl ge Teana tipo di sonda ETG
86. rm 2 delayed external alarm 3 select probes ir33M enable defrost 4 start defrost 5 door switch with compressor and evaporator fans off 6 remote ON OFF 7 curtain switch 8 low pressure switch 9 door switch with fans off 10 direct reverse operation 11 light sensor 12 activate aux output 13 door switch with compressor and fans off and light not managed 14 door switch with fans off and light not managed C A5 Digital input configuration 2 DI2 MSYFCH 10 0 14 52 152 RAW See A4 C A6 Stop compressor on external alarm SYFCH 10 0 100 min I 53 153 R W 0 compressor always off 100 compressor always on A7 Digital alarm input delay SYFCH J0 0 250 min l 54 154 R W 0 control outputs unchanged C A8 Enable alarms Ed1 and Ed2 end defrost by timeout SYFCH 10 0 1 D 49 49 R W 0 alarms disabled Ado Light management with door switch MSYFCH 10 0 1 D 50 50 RAW Ado Light when ope Algorithm Description ning the door 0 off Extended normal Open close Open on close open close 1 off normal on extended C Ac High condenser temperature alarm threshold SYFCH 700 10 200 CZE JA 29 29 RAW C AE High condenser temperature alarm differential SYFCH 1100 10 1 20 CZE JA 30 30 RAW C Acd High condenser temperature alarm delay SYFCH J0 0 250 min l 56 156 R W 0 Immediate alarm AF Light sensor OFF time SYFCH 10 0 250 S 5 157 R W 0 Sensor in the door jamb gt 0 Sensor inside the cold room or cabinet a ALF Frost
87. rs and test the controller e alarm signal buzzer e HACCP functions temperature monitoring and recording in the event of high temperature alarms during operation and after blackouts e RS485 serial network connection to remote supervisor and telemaintenance systems The models differ in terms of e the type of power supply alternating current 12 to 24 V 115 230 V 230 V 50 60 Hz direct current 12 18 Vdc 12 30 Vdc the number of relay outputs Available accessories include e serial interface card P N IROPZ48500 for connection to the RS485 network programming key P N IROPZKEY for reading upload and writing download the control parameters e display interface P N IROPZDSPOO for remote display connection 1 1 Main features The ir33 platform controllers are designed to offer maximum installation flexibility In addition to the control probe a further three probes can be configured as product probe display only condenser frost protection and defrost probe Using the advanced defrost functions ifthe conditions are right subsequent defrosts can be postponed or skipped The digital outputs relays can control the solenoid valve or compressor a second compressor the evaporator or condenser fans defrosts lights and alarms The digital inputs can be used for the door switch and light management the curtain switch to change over to night time operation to enable and start defrosts to switch the co
88. s with a maximum length of 1000 m Connection requires the standard accessories RS485 USB converter CAREL P N CVSTDUMORO and a 1200 terminating resistor to be installed on the terminals of the last connected controller Connect the RS485 converter to the controllers and make the connections as shown in the figure lo assign the serial address see parameter HO See the instruction sheets on the converters for further information it 44a CVSTOUMORG fe 1 EEE RT GL Wi m mm m m r Lispi CARE L 3 USER INTERFACE The front panel contains the display and the keypad made up of 4 buttons that when pressed alone or combined with other buttons are used to program the controller The optional remote display is used to display the temperature measured by a second probe User terminal Remote display 33 Fig 3 a 3 1 Display The user terminal display shows temperature in range 50 to 150 C The temperature is displayed with resolution to the tenths between 19 9 and 19 9 C In the event of alarms the value of the probe is displayed alternating with the codes of the active alarms During programming the terminal shows the codes and values of the parameters The remote display IREVXGD000 shows the temperature with resolution to the tenths between 9 9 C and19 9 C Note the standard display on the user terminal and the remote display can be selected by setting parameters
89. s All the operations can be performed with the controller off Programming key copy set up Fig 2 y The functions are selected by setting the two dipswitches accessible by removing the battery cover ir33plus 03Z0028EN rel 1 0 27 08 2014 UPLOAD DOWNLOAD EXTENDED DOWNLOAD OFF OFF ON ON SE i a ge W M load the parameters from a controller onto the key UPLOAD copy from the key to a controller DOWNLOAD extended copy from the key to a controller EXTENDED DOWNLOAD A Important The parameters can only be copied between controllers with the same part number The UPLOAD operation can however always be performed Copying and downloading the parameters The following operations are used for the UPLOAD and or DOWNLOAD functions simply by changing the settings of the dipswitches on the key 1 open the rear cover on the key and position the 2 dipswitches according to the desired operation 2 close the rear cover on the key and plug the key into the connector on the controller 3 press the button and check the LED red for a few seconds then green indicates that the operation was completed correctly Other signals or the flashing of the LED indicates that problems have occurred see the table below 4 atthe end of the operation release the button after a few seconds the LED goes off 5 remove the key from the controller LED signal Error Meaning and solution Red
90. s and exit the parameter setting procedure Example 2 setting the light auxiliary output aux On Off time 1 Access the type C parameters as described in the corresponding paragraph 2 Press UP DOWN and select the parent parameter ton on time 3 Press Set parameter d is displayed followed by one or two digits that represent the on day as follows 0 function disabled 1 to 7 Monday to Sunday 8 Monday to Friday 9 Monday to Saturday 10 Saturday amp Sunday 11 every day 4 Press Set to confirm and go to the on time parameters h m hours minutes 5 To return to the list of main parameters press Prg mute and then access parameter toF off time 6 To save the settings press Prg mute for 5 seconds and exit the parameter setting procedure Note only one on or off event can be programmed Setting the default parameters To set the parameters to the default values e Power down the controller e Press Prg mute e Power up the controller holding the Prg mute button until the message Std is shown on the display after 5 s Note this will cancel any changes made and restore the original values set by the manufacturer i e the default values shown in the parameter table 15 Testing the display and keypad on start up To access test mode 1 Switch the controller on 2 Press Prg when the three segments on the display are all on
91. sing the VPM programming tool Visual Parameter Manager see appendix 1 and the programming key Procedure power down the controller e power up while holding Prg mute e the display will show the first set bnO press UP DOWN to select set bn1 to bn6 For example select bn2 press Set to confirm the selected set the controller will load the set of parameters called bn2 and then will return to the standard display Par Hdn Description Min Max UOM Number of default parameter sets available 0 0 6 Tab 4 Note bnO is the default set of parameters on the controller i e the default configuration When one of sets bn1 to bn6 is loaded bnO is overwritten with the new set and is consequently erased 4 3 Preparing for operation Once having completed the installation configuration and programming procedures before starting the controller check that e the wiring has been completed correctly e the programming logic is suitable for controlling the unit and the system being managed e if the controller is fitted with RTC clock set the current time and date and the on and off times for the light auxiliary output e set the standard display e set the probe type parameter based on the probe available and the type of control NTC NTC HT PTC note that the controllers that use PTC probes may have different part numbers from those that only use NTC probes e set t
92. st of parameters on the E2PROM key as the source Elenco moduli Seleziona origine Lista Parametri Chiave EZPROM 6 Dispositivo Modello dispositivo Cerca per Famiglia Fig 10 b ir33plus 03Z0028EN rel 1 0 27 08 2014 e Select the key connection port using the guided procedure Wizard M PortsConnessioneChiave COM10 Pata 5495 COM4 Fig 10 Connect the programming key to the converter 10 4 Programmin Go to the Configure device page and select Read Configura dispositivo Fig 10 d al Parameter Manager IR33 Seto Seta seta seta sets sets sete Parametro Detenzone Mn M Fig 10 e A progress bar is displayed When reading the data the LEDs on the converter flash and at the bottom right the message ONLINE is displayed Fig 10 f CAREL At the end the list of parameters read is displayed Rs lt m Note E o Conca on the controller Set0 Set1 Set6 are named bn0 to bn6 respectively sr _ m e SetO is the default set on ie controller i e the default configuration mata Catonisteaumtaczniwina i When loading a different set Set1 Set6 SetO is overwritten with the mar AK cewnik 3 new set and is consequently erased m miai Config RCA ia rene dE hi mira i 15 Pav i ial Bn Ber meere vim Sora fi LA Peri a ETL Sereda vrha fi baa Pa
93. t alarm A maximum of 3 errors are saved in a FIFO list HA to HA2 FIFO First In First Out management means the first error recorded is the first to be cancelled when the list is full and needs to be updated The last error saved is displayed for parameter HA HAn indicates the number of type HA alarms activated Par Description Def Min Max UOM HAn Number of HA alarms 0 0 15 HA HA2 IHA HACCP alarms activated press Set V__ Alarm 1 to 3 Year 0 0 99 year M Alarm 1 to 3 Month 0 12 month d__ Alarm 1 to 3 Day of the month __ 0 1 31 day fi Alarm 1 to 3 Hour 0 0 23 hour n Alarm 1 to 3 Minute 0 0 59 minute Alarm 1 to 3 Duration 0 0 240 hour Htd HACCP alarm delay 0 0 240 min 0 Monitoring disabled Tab 8 b Ad Htd Fig 8 b Key S1 Virtual probe Ad High and low temperature alarm delay St Set point Htd HACCP alarm delay 0 monitoring disabled AH High temperature alarm i Time threshold ALARM HA HACCP alarm HF alarms The type HF HACCP alarm is generated following a power failure for an extended time gt 1 minute if when power returns the temperature read by the control probe exceeds the AH high temperature threshold HFn indicates the number of type HF alarms activated Par Description Def Min Max UOM HFn Number of HF alarms 0 0 15 l HF HF2 HF HACCP alarms activated press Set
94. t gt dn Performed gt dn Performed gt dn Performed lt dn Skiooed Defrost lt dn Skipped Skipped Defrost gt dn Performed gt dn Performed gt dn Performed gt dn Performed lt dn N NINNI O O O O N N NI O O O O O O O O O O O O O O O O NIO O O O O O N IO O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O INIwW U1 0 IN Skipped Defrost lt a Skipped Skipped Defrost lt dn Tab 11 b 11 2 Variation of the defrost interval This algorithm is used to adjust the defrost interval based on the duration of the previous defrost To enable this set d12 1 or 3 The nominal defrost times on evaporator 1 and evaporator 2 are determined based on parameter dn and the parameters that set the maximum defrost duration for evaporators 1 and 2 according to the following formulae dn dn1 dP1 100 d dn2 scl dP2 100 With running the defrost depending on the duration dE the defrost interval dl is adjusted by the value Adl calculated using the algorithm If there are two evaporators the defrost duration considered is the longer nominal defrost duration CAREL 11 3 Defrost with 2 evaporators Up to 3 defrost probes and up to 2 evaporator outputs can be configured The controller recognises the basic configuration shown in
95. t Set point rd Differential Sv Virtual probe AUX Auxiliary output CMP Compressor The neutral zone is activated on the controller only if the reverse output is activated with neutral zone control H1 11 The figure below shows direct operation r3 0 1 with 1 compressor output CMP ir33plus 03Z0028EN rel 1 0 27 08 2014 r3 0 1 Fig 6 d Reverse operation r3 2 with 1 compressor output CMP r3 2 Key SI Set point rd Differential rn Neutral zone rr Reverse differential 6 4 Pump down The pump down function has the purpose completely emptying the evaporator of refrigerant on reaching the set point The controller first deactivates the pump down valve and then after a certain time the compressor The application diagram shows the pump down valve and the low pressure switch When the controller restarts the compressor if protection times cl and c2 have elapsed the pump down valve is opened and after the time c8 the compressor is activated The parameters involved are listed below Par Description Def Min Max UOM c Maximum pump down time PD 0 00 900 s 0 pump down disabled c8 Compress start delay after opening PD valve 5 JO 160 js c9 Autostart in pump down o J0 f 0 Disabled 1 Pump down whenever closing pump down valve amp following low pressure switch activation with no cooling demand c10 Pump down by time or pressure O 0 0 1 pressu
96. t on ir33plus 03Z0028EN rel 1 0 27 08 2014 Case 1 light off when opening the door If the door is opened with the light OFF the compressor and the evaporator fans are switched off the light is switched on only on models fitted with at least 1 auxiliary relay programmed as a light output e the reading displayed and the icon A flash e the temperature alarms are disabled If the door remains open for a time longer than d8 d8d the controller resumes normal operation the compressor and the evaporator fan are switched on if needed e the light is switched off e the reading on the display flashes e the buzzer and the alarm relay are activated e the temperature alarms are enabled with the delay Ad To stop the reading from flashing close the door When the door closes the controller resumes normal operation switching off the light and enabling the temperature alarm after the delay time d8 The compressor is re started after any set protection times see the C parameters Case 2 light on when opening the door NZ The icon is on Ifthe door is open with the light on it is assumed the user enters the cold room turning on the light before entering closing the door behind him and then exits the room closing the door a second time When the door is opened the first time the compressor and the evaporator fans are switched off e the light stays on only on models fitte
97. the temperature effectively measured until all the alarms are reset Example in the case of bottle coolers typically used in supermarkets where 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 controller ir33plus 03Z0028EN rel 1 0 27 08 2014 measures a temperature that is higher than effective temperature of the soft drinks thus displaying an 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 product temperature Display on user terminal and remote display The user terminal controller display can either display the value of the virtual control probe see the chapter on control the reading of probes 1 4 or the set point Similar displays can be selected on the remote display except for the set point Par Description Def Min Max UOM tl Display on user terminal 1 1 7 1 Virtual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe 2 7 Setpoint 4 Probe 3 tE Reading on remote display 0 0 6 O Terminal not fitted 4 Probe3 1 Virtual probe 5 Probe 4 2 Probe 1 6 Reserved 3 Probe2 Tab 4 d Serial address parameter HO HO assigns the controller an ad
98. tput the continuous cycle AUX when setting the parameters decreases the value di AUX DOWN SET DEF if pressed together for more than 1 second displays a submenu used DOWN splayed or scrolls to the previous parameter to access the HACCP alarm parameters foe If pressed for more than 1 s displays and or lets the user SET DEF AUX DOWN if pressed together for more than 1 second displays a submenu used to LY set the set point access the parameters relating to the HACCP alarms SET DEF if pressed for more than 5 s starts a manual defrost SET DEF ON OFF UP if pressed together for more than 3 seconds displays the temperature read by the defrost probe 3 3 Programming The operating parameters can be modified using the front keypad Access differs depending on the type set point frequently used parameters F and configuration parameters C The type of parameter is specified in the table of parameters Access to the configuration parameters is protected by a password for the configuration parameters that prevents unwanted modifications or access by unauthorised persons The password can be used to access and set all the control parameters Setting the set point To change the set point St press Set for more than 1 s the display shows Set and then the current value of St press UP DOWN until reaching the desired value e press Set to save the new value of St Setting type F parameters
99. type F parameters cannot be set but rather only their values can be displayed note Y can be activated enabled N cannot be activated enabled CAREL ir33 par H2 FUNCTION 0 1 2 3 4 5 6 LIGHT nd Y Y Y AUX Y Y Y Y ng Y Y ON OFF Y Y Y N N Y HACCP Y Y Y Y Y Y Y PRG MUTE mute Y Y Y Y Y Y Y UP DOWN continuous cycle Y Y Y Y N N N SET DEF defrost Y Y Y Y N N N SET set point setting N Y N Y Y N N F parameter setting N W N Y N N N Tab 4 h Disable buttons Using the individual bits the functions relating to the buttons on the keypad can be enabled or disabled according to the relationships shown in the table below to calculate the value to be assigned to parameter H6 simply sum the values assigned to the functions that should be disabled Note the functions disabled using parameter H6 are added to those disabled using parameter H2 Disable buttons Bit Value ir33 ir33 function Description par H6 button o 1 es Display defrost temp proce Display defrost temp Nu dure access HACCP defrost procedure DEF 1 2 Lux Activate AUX output 1 conti Defrost __ nuous cycle v 2 4 A Up On Off Continuous cycle O 3 18 A Mute alarms Mute alarms 7 9X Tab 4 i 19 4 2 Loading the sets of parameters Up to 6 sets of custom parameters can be selected on the controller after having been loaded u
100. ue C cO Compressor fan and AUX start delay at power on SYFCH 10 0 15 min 27 127 R W C c Minimum time between successive compressor starts SYFCH O 0 15 min 28 128 R W a C2 Minimum compressor off time SYFCH 2 0 15 min 29 129 R W C C3 Minimum compressor on time SYFCH O 0 15 min 30 130 R W C c4 Compressor running time with duty setting SYFCH 0 0 100 Imin 31 131 R W C ae Continuous cycle duration SYFGH G 0 15 hour 32 132 R W C c6 Low temperature alarm bypass time after continuous cycle SYFCH 1 2 0 250 hr min_ 33 133 R W C C7 Maximum pump down time PD SYFCH O 0 900 s 34 134 R W 0 Pump down disabled d c8 Compressor start delay after opening PD valve SEGA 0 CDS 55 135 R W C c9 Autostart in pump down SYFGH 10 0 1 D 43 43 R W 0 Disabled 1 Pump down whenever closing pump down valve amp following low pressure switch activation with no cooling demand C c10 Pump down by time or pressure SYFCH 0 0 1 D 44 44 R W 0 1 pressure time c11 Second compressor start delay SYFCH 4 0 250 15 36 136 R W User Par Description Models Def Min Max UOM Type CAREL ModBus R W SVP dEF C dO Type of defrost SYFCH JO 0 4 a7 137 R W 0 heater by temperature 1 hot gas by temperature 2 heater by time Ed1 Ed2 not shown 3 hot gas by time Ed1 Ed2 not shown 4 heater by time with temperature control Ed1 Ed2 not shown F dl Maximum time between consecutive defrosts SYFCH JE 0 250 hr 38 138 R W 0 defrost
101. unning time defrost temperature threshold SYFCH 110 20 20 C F_JA 25 25 R W 33 ir33plus 03Z0028EN rel 1 0 27 08 2014 CAREL User Par Description Models Def Min Max UOM Type CAREL ModBus R W SVP C d12 Advanceddefrosts SYFCH 0 0 3 47 147 R W d12 Skip defrost Automatic variation of dl 0 Disabled Disabled 1 Disabled Enabled 2 Enabled Disabled 3 Enabled Enabled C dn Nominal defrost duration SYFCH 165 1 100 48 148 R W C dH Proportional factor for variation of dl SYECH 150 0 100 49 149 R W ALM A C AO Alarm and fan differential MSYFCH 2 0 10 1 20 CZE JA 26 26 RAW C Al Alarm thresholds AL AH relative to set point or absolute MSYFCH 0 0 1 D 48 48 R W 0 AL and AH are relative thresholds to the set point 1 AL and AH are absolute thresholds F AL Low temperature alarm threshold MSYF 10 0 A1 1 200 CHEF 2 ay R W 50 alarm LO disabled A1 0 gt O alarm LO disabled F AH High temperature alarm threshold MSYF 0 0 A1 1 50 A1 1 200 C F F 28 28 R W A1 0 gt alarm HI O alarm HI disabled disabled Al1 O0 200 F Ad High and low temperature alarm delay MSYFCH 1120 0 250 min 50 150 R W C A4 Digital input configuration 1 D11 SYFCH J0 0 14 51 151 R W 0 not active 1 immediate external ala
102. ure alarm or compressor thermal overload When the alarm is activated 1 the following actions occur a signal is shown on the display IA e the icon A flashes e the buzzer is activated if enabled e the alarm relay is activated if selected 2 andthe actuators behave as follows compressor operates depending on the values assigned to parameter A6 stop compressor on external alarm e fans continue operating according to the fan parameters F Note when the compressor stops the minimum compressor on time c3 is ignored 2 Delayed external alarm The delayed external alarm is equivalent to the immediate external alarm however with the addition of a delay A7 before the signal dA Application this configuration is especially useful for managing the low pressure alarm In fact when starting for the first time the unit often detects a low pressure alarm due to the environmental conditions rather than a unit malfunction Setting a delay for the alarm par A7 will avoid false signals In fact by suitably calculating the delay if the low pressure is due to environmental conditions low temperature the alarm will be automatically reset before the delay has elapsed Note if A 0 activation of the alarm does not cause the compressor to operate according to the values assigned to parameter A6 stop compressor on external alarm on the other hand the dA signal is displayed the icon A flashes
103. y evaporator defrost 5 pump down valve 6 condenser fan 7 delayed compressor 8 auxiliary with deactivation when OFF 9 light with deactivation when OFF 10 no function 11 reverse with neutral zone 12 second compressor step 13 second compressor step with rotation H2 Disable keypad functions MSYFCH 1 0 6 62 162 R W C H4 Buzzer 0 1 enabled disabled MSYFCH JO 0 1 D 53 53 R W C H6 Terminal keypad lock configuration MSYFCH 0 0 255 65 165 R W 0 all buttons enabled a H7 Keypad 0 standard 1 modified MoE EEG 0 1 D 54 54 R W C H8 Output switched with scheduler 0 Light 1 AUX MSYFCH J0 0 1 z D 60 60 R W C H9 Set point variation with scheduler 0 1 no yes MSYFCH JO 0 1 D 61 61 R W q Hdn Number of default parameter sets available Horca E 0 6 ley 257 R W C Hdh Anti sweat heater offset MSYFCH 0 50 1200 C F A 37 37 R W 0 anti sweat heater function disabled C 32 anti sweat heater function disabled F G HrL Remote light relay status on Master 0 disabled MEIER E 0 1 D 62 62 R W C HrA Remote AUX relay status on Master 0 disabled MSYFCH __ O 0 1 DP lies 63 R W C HSA Remote controller alarms on Master 0 disabled MSYFCH 10 0 1 D 64 64 R W d In Type of unit MSYFCH 0 0 6 138 238 RAW 0 Normal 1 Master 2 6 Slave 1 to 5 User Par Description Models Def Min Max UOM Type CAREL SVP ModBus R W HcP C HAn Number of HA alarms MSYFCH 0 0 15 67 167 R C HA HA HACCP alar

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