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1. Notes preliminary version CARE Tecnologia ed Evoluzione CAREL S p A Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 http www carel com e mail carel carel com Agenzia Agency Code 030220141 preliminary version del 06 09 04
2. User manua LEGGI E CONSERVA QUESTE ISTRUZIONI READ AND SAVE THESE INSTRUCTIONS CAREL Tecnologia ed Evoluzione LEGGI E CONSERVA gt QUESTE ISTRUZIONI lt READ AND SAVE THESE INSTRUCTIONS We want to save you time and money We can assure you that the thorough reading of this manual will guarantee correct installation and safe use of the product described IMPORTANT WARNINGS This instrument has been designed to operate without risks for the specific purpose only if installation operation and maintenance are performed according to the instructions in this manual the environmental conditions and supply voltage fall within the values indicated here below Any different use or changes that have not been previously authorised by the manufacturer are considered improper Responsibility for injures or damage caused by improper use will lie exclusively with the user Warning voltage is present in some electrical components of this unit thus all the service or maintenance operations must be performed by expert and skilled personnel only aware of the necessary precautions to be taken Before accessing the internal parts disconnect the power supply Disposal of controller parts The controller is made up of metal and plastic parts and a lithium battery All these components must be disposed of according to the local legislation in force CONTENTS 1 LI 1 2 2 21
3. fejdsig ajouay oL Power supply 115 230V 50mA max ir33 ir33 Connessioni IR33 versioni switching 12Vac o 12 24Vac To Carel Network interface ki T o 7 a 8 inci 54 Panel mounting IP65 Remote E b 8 display L_ 3 8 E c a Ey lt Power supply IR33M LN 0 IR 0 12V 300mA max IR L 12 24V 300mA max IR33M LR O IR33M LC 0 IR33M LB 0 IR33M 0N 0 IR33M 0R 0 IR33M 0C 0 IR33M 0B 0 To Carel Network m EN ST FE BE Rel 1 EN60730 1 de A 250V UL 873 12A 5FLA 30LRA a F ina FE Panel mounting IP65 Remote z D 3 display z7 ka 2 o a gt lt Power supply IR33M LA 0 IR 0 42V 300MA max IR33M LM 0 IR L 12 24V 300mA max IR33M LL 0 IR33M LT 0 IR33M 0A 0 IR33M 0M 0 IR33M 0L 0 IR33M 0T 0 Cod CAREL 030220141 preliminary version del 06 09 04 68 Rel 1 EN60730 1 12 2 A 250V UL 873 12A 5FLA 30LRA Panel mounting IP65 Rel 1 Rel 2 EN60730 1 12 2 A 8 4 A 250V 12A5FLA 8A 2FLA 30LRA 12LRA Maximum total current on terminal 3 12A UL 873 Panel mounting IP65 To Carel Network interface Serial Ol Serial a 7 Remote 3 display 8 o pi 2 Power supply IR33S LN 0 IR 0 Ha 300mA max IR L 12 s mA max IR33S LR 0 IR33S LC 0 IR33S LB 0 IR33S 0N 0 IR33S 0R 0 IR33S 0C 0 IR33S 0B 0 To Carel Network LII
4. Serial n a interface mr Rel 1 Rel 2 To Carel Network Compressor Power supply IRIIS EA0 EE Evo zana mar IR33S EM 0 IR33S EL 0 IR33S ET 0 IR33S AA 0 IR33S AM 0 IR33S AL 0 IR33S AT 0 Rel 2 8 4 A anana DI interface Rel 1 Rel 2 To Carel Network ompressor Defrost Pai supply IRSSY EN O Mei QU rat IR33Y ER 0 IR33Y EC 0 IR33Y EB 0 IR33Y AN 0 IR33Y AR 0 IR33Y AC 0 IR33Y AB 0 Cod CAREL 030220141 preliminary version del 06 09 04 64 ir33 Rel 1 Rel 2 Rel 3 EN60730 1 8 4 A 8 4A 5 1 A 250V UL 873 8A2FLA 8A2FLA 5A1FLA 12LRA 12LRA 6LRA Maximum total current on terminal 1 12A Panel mounting IP65 IR33F EN 0 m Serial interface Rel 3 Rel 1 Rel 2 To Carel Network Serial Defrost wr z Fan Compressor Power supply IR E 230V 25mA max IR A 115V 50mA max IR33F ER 0 IR33F EC 0 IR33F EB 0 IR33F AN 0 IR33F AR 0 IR33F AC 0 IR33F AB 0 ir33 Connections 230 Vac or 115 Vac with transformer and 16 A relay version Rel 1 EN60730 1 12 2 A 250V UL 873 12A 5FLA 30LRA Panel mounting IP65 IR33S EP 0 IR33S EQ 0 IR33S ES 0 IR33S EU 0 IR33S AP 0 IR33S AQ 0 IR33S AS 0 IR33S AU 0 Serial interface To Carel Network Serial and Key ompressor Probe 1 Probe 2 Ni Power supply IR E 230V 25mA max IR A 115V
5. SYF hours 15 Qua no 32 c6 Alarm bypass after continuous cycle SYF hours 15 33 c7 Maximum pump down time 34 c8 Comp start delay after open PD valve 30 60 SYF min SYF sec aajaja alo 35 c9 Enable autostart function in PD SYF flag 0 1 36 c10 Select Pump down by time or pressure SYF flag 0 1 38 do Type of defrost SYF flag C 0 3 0 39 dI Interval between defrosts SYF hours F 8 250 0 40 dtl End defrost temperature main evap SYF C F F 4 0 200 50 4l dt2 End defrost temperature aux evap SYF C F F 4 0 200 50 42 dP1 Maximum defrost duration main evap SYF min F 30 250 1 43 dP2 Maximum defrost duration aux evap SYF min F 30 250 l 44 d3 Defrost start delay SYF Min C 0 250 0 45 d4 Enable defrost on start up SYF flag C 0 1 0 46 d5 Defrost delay on start up SYF min C 0 250 0 47 d6 Display on hold during defrost SYF C 1 2 0 48 dd Dripping time after defrost SYF min F 2 15 0 49 d8 Alarm bypass after defrost SYF hours F 1 15 0 50 d9 Defrost priority over compressor protectors SYF flag C 0 1 0 51 d 1 Display defrost probe MSYF C F F 52 d 2 Display defrost probe MSYF C F F 53 dC Time base for defrost SYF flag C 0 1 0 54 di0 Compressor running time SYF hours C 0 250 0 55 dil Running time temperature threshold SYF C F C 1 0 20 20 56 d12 Advanced defrost SYF C 0 3 0 57 dn Nominal defrost duration SYF C 65 100 1 Cod CAREL 030220141 preliminary version del 0
6. dn 65 gt 65 of dP1 or dP dH Proportional factor in the variation of the defrost interval This parameter is used to increase or decrease the influence of the effective duration of the defrost in relation to the nominal duration in the algorithm that manages the automatic variation of the defrost interval By setting dH 0 the effective duration has no influence on the duration of the defrost interval Vice versa with dH 100 one obtains maximum efficiency Default dH 50 Cod CAREL 7030220141 preliminary version del 06 09 04 38 ir33 7 5 Alarm management parameters 60 Ai typeof threshold AL and AH wsvr me 0 1 0 61 AL Low temperature alarm threshold MSYE PERE F 00 200 56 62 AH High temperature alarm threshold MSYF CPF F 00 200 50 3 Ad Low and high temperature alarm delay MSYF mim F 120 250 9 ft titan ELI pep p e p bs AS pigialnput2 configuration Msvr c 6c A6 stop compressor fiom extemal alam SYF mm C 9 100 0 67 AT External alarm detection delay SYF min C 9 250 0 bs AS Enable alarms Edi and E syr fag C 9 9 69 Ado Light management mode with door switch MSYF mag C 9 1 o 70 Ae High condenser temperature alarm SYF cr C 700 200 09 2 Acd High condenser temperature alarm delay SYF min C 0 250 0 5 AF
7. 300mA max ir33 Rel 1 Rel 2 Rel 3 EN60730 1 12 2 A 8 4A 8 4A 250V UL 873 12A5FLA 8A2FLA 8A2FLA 30LRA 12LRA 12LRA Maximum total current on terminal 3 12A Panel mounting IP65 e e Rel 3 Rel 1 Rel 2 To Carel Network interface Serial IT Remote display a uel edeyoui fejdsig ajowey oL Power supply IR33F LN 0 IR 0 12V 300mA max IR L 12 24V 300mA max IR33F LR 0 IR33F LC 0 IR33F LB 0 IR33F 0N 0 IR33F 0R 0 IR33F 0C 0 IR33F 0B 0 To Carel Network N iil lt 8 st Tg 3i Rel 1 Rel 2 Rel 3 Rel 4 EN60730 1 12 A 8 4A BAJA 8 4 A 250V UL 873 12A 5FLA 8A2FLA 8A2FLA 8A2FLA 30LRA 12LRA 12LRA 12LRA Le A R E Maximum total current on terminal 3 12A Rel 3 Rel 4 s Panel mounting IP65 ron Role FEENB Remote ob H o display L j Fa ri o Fa L o LJ a Ek 2 L T ji L z Compressor IR33C LN 0 IR33C LR 0 IR33C LC 0 IR33C LB 0 IR33C 0N 0 IR33C 0R 0 IR33C 0C 0 IR33C 0B 0 Power supply IR 0 12V 300mA max IR L 12 24V 300mA max CAREL reserves the right to modify or change its products without prior notice Cod CAREL 7030220141 preliminary version del 06 09 04 71 ir33 preliminary version Notes
8. AL AL 0 gt Alarm disabled Absolute threshold for low temperature alarm value of AL AL 50 Alarm disabled Attention If the threshold AL is selected as relative the value for disabling the alarm is 0 if the threshold AL is selected as absolute the alarm disabling value is 50 Warnings for the relative threshold e the value of AL does not indicate the alarm temperature but the maximum permissible deviation off the set point changing the set point automatically changes the low temperature alarm while the maximum deviation allowed AL remains fixed Warnings e the low temperature alarm has automatic reset this means that if the temperature returns above the minimum specified value the alarm signal is automatically cancelled Warnings for using the continuous cycle e the low temperature alarm is also used in the continuous cycle see the description of parameter cc In fact if the temperature falls to the alarm level the continuous cycle is stopped automatically even 1f the selected time has not yet elapsed This deactivation however does not involve an alarm signal Warnings e forthe control probe alarm the low temperature alarm is reset and monitoring reinitialised Default AL 0 gt low temperature alarm disabled AH High temperature alarm Used to determine the activation threshold for the high temperature alarm Relative threshold for high temperature al
9. Cod CAREL 7030220141 preliminary version del 06 09 04 36 ir33 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 In the case of systems with a large number of units if you select defrosts at start up after a power failure all the units will start defrosting thus causing a voltage overload To overcome this the parameter 45 can be used It adds a delay before the defrost and this delay must obviously be different for each unit Default d4 0 the instrument does not perform a defrost on start up d5 Defrost delay when the instrument is switched on or from multifunction input The time that must elapse between start up of the controller and the start of the defrost e If the digital input is used to enable the defrost see parameter A4 3 or to start a defrost from external contact see parameter A4 4 the parameter d5 refers to the delay between enabling of the defrost or request to enable and the effective start e The defrost digital input see parameter A4 can be usefully employed to perform defrosts in real time connecting a timer to the input The defrost will be activated when the timer contact closes If several units are connected to the same timer parameter d5 should be used to delay the various de
10. has not elapsed The activation of a compressor autostart cycle in Pump Down is signalled by the message AtS on automatic restoration of the next correct Pump Down cycle 6 8 4 Low pressure alarm The low pressure alarm LP is signalled when the pressure switch signals a low pressure situation with the pump down valve open and the compressor operating The low pressure alarm signal is nonetheless delayed by the time set for parameter A7 Low pressure is not signalled during the compressor start up phase opening of the pump down valve and subsequent activation of the compressor after the time c8 during shutdown of the compressor in pump down and during the compressor autostart cycle in pump down The low pressure alarm shuts off the pump down valve and the compressor and is on automatic reset The low pressure alarm can be reset in any situation 6 9 Continuous cycle Pressing for more than 5 seconds activates the continuous cycle function During continuous cycle operation the compressor continues to operate independently of the controller for time cc to lower the temperature even below the Set Point If time cc is set to 0 the continuous cycle is never activated The continuous cycle is stopped after the time cc or when reaching the minimum specified temperature corresponding to the minimum temperature alarm threshold AL Cod CAREL 7030220141 preliminary version del 06 09 04 25
11. ir33 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 the alarm bypass delay time after continuous cycle c6 6 9 1 Events that activate the continuous cycle Al e Pressing for more than 5 seconds 6 9 2 Events that do not activate the continuous cycle duration of the continuous cycle cc is set at 0 the temperature is below the low level threshold in Reverse operation hot from parameter 13 or from digital input A4 A5 in OFF state 6 9 3 Continuous cycle request status This status exists when the activation of the continuous cycle is requested however it cannot be started for one of the following reasons e compressor protection times cl c2 c3 as they delay activation of the compressor immediate or delayed alarm from external digital input A4 A5 A9 if this delays activation of the compressor defrost dripping or post dripping in progress compressor and fan start delay on start up door open see Continuous cycle in progress below low pressure alarm LP active as this delays activation of the compressor high condenser temperature alarm CHt as this delays activation of the compressor During the continuous cycle request the icon amp flashes 6 9 4 Continuous cycle in progress When the continuous cycle is running e The compressor
12. 60 r3 Operating mode ir33 can work as a thermostat and defrost controller for static units at normal temperature r3 0 as a simple thermostat in Direct operation r3 1 or as simple thermostat in Reverse cycle operation r3 2 r3 0 Direct thermostat with defrost control cooling r3 1 Direct thermostat cooling r3 2 Reverse cycle thermostat heating Also see the description of parameters A4 and A5 Notes 1 with r3 1 and r3 2 the defrostsrare always disabled 2 adigital input set for direct reverse cycle control has priority over the operating mode Remember that in reverse cycle operation the differential is to the left of the set point as shown in the following figure R pagarsi Default r3 0 gt Direct thermostat operation with defrost control REVERSE Caldo Heating rd ON OFF r4 Automatic variation of the set point in night time operation Set Point This parameter is part of the group for control of the curtain switch together with A4 and AS programmable for configuring the digital inputs When the curtain is closed and consequently the digital input connected to the curtain switch is closed the controller automatically increases the set point by the value assigned to r4 in direct mode cooling and automatically decreases the set point by the value assigned to r4 in reverse mode heating Def
13. 9 A W Press or M until reaching the parameter to be modified when scrolling an icon appears on the display representing the category the parameter belongs to PRG Alternatively press ld to display a menu that is used to quickly access the group of parameters to be modified A ana II Scroll the menu with the and M buttons the display shows the codes of the various categories of parameters see the Summary of operating parameters accompanied by the display of the corresponding icon if present When you have reached the desired category press L to move directly to the first parameter in the category if there are no visible parameters in the selected category pressing will have no effect At this point continue to scroll the parameters until you reach the parameter to be modified or return to the Categories PRG menu by pressing les for one second Press Ek display the associated value a Increase or decrease the value with the or LV keys respectively until you reach the desired value Press Ch temporarily save the new value and return to the display of the parameter code Repeat the operations from point 1 or point 2 10 If the parameter has sub parameters press E to display the first sub parameter 11 Press l3 or V to display all the sub parameters 12 Press Ek display the associated value Al fee 13 Increase or decrease the value with the or LY keys respectively until you reach the
14. Consequently at the end of defrost the dI timer expires and another defrost is performed If a defrost is run from the digital input or by the compressor running time algorithm the timer dI 1s reset when the defrost request is generated In this way the defrost interval is a timeout for the generation of the defrost requests used for example when the external timer is not working correctly If defrost on start up d4 has been selected and a defrost on start up delay d5 has been set the timer dI must be set to the end of the defrost delay on start up For units programmed in the same way and with the same value of dl and different values of d5 this enables the defrosts at start up to be distributed through time and the time staggering of the defrosts to be maintained for the subsequent events too 6 7 New defrost activation modes With this controller defrosts can be managed in three different modes in addition to the standard mode 6 7 1 Defrost according to compressor running time To enable the controller for this operating mode set a value 70 for parameter d10 This mode affects start defrost that is according to the evaporator temperature parameter d11 the controller checks the compressor running time parameter d10 and decides whether to activate the defrost or not There are two parameters e dl0 compressor running time with the evaporation temperature less than the threshold after which a defrost request is g
15. but if light is detected the inside light is switched back on after a minimum time of 3 seconds and the same cycle starts again Default AF 0 Cod CAREL 030220141 preliminary version del 06 09 04 46 ir33 7 6 Evaporator fan management parameters 74 FO Fanmanagement F flag C 0 2 0 76 F2 Fan OFF with compressor OFF F fag C 1 o 77 F3 Fansindefros F flag C 1 1 0 78 FW Fan OFF after dipping F mim F 1 15 9 80 F5 Condenser fan switch ON differential MSYF C F C 5 0 20 0 1 Under normal operation infrared series controllers manage the evaporator fans in the following modes e always ON e ON only when the compressor is ON e ON according to evaporator and room temperature F0 Fan management The fans can be managed by the fan controller which controls them according to the temperature measured by the defrost and virtual control probes Otherwise the fans can be left ON always They can be stopped in the following situations when the compressor is OFF see parameter F2 during defrosts see parameter F3 during the dripping period see parameter dd and for a further post dripping period see parameter Fd They can be forced ON in the following situations e during defrosts see parameter F3 The following values are allowed for this parameter
16. equal to the value in minutes set for parameter dP1 e If when a defrost is requested the temperature measured by the defrost probe on the evaporator is greater than the value set for the end defrost the cycle is not performed including the dripping and post dripping phases The same is true for the defrost on start up from digital contact from RTC and from the keypad e If the defrost probe on the evaporator is faulty or disabled the controller performs a timed defrost with a duration equal to the value set for parameter dP1 e Ifthe end defrost set point is not reached within the time set for parameter dpi the defrost is stopped If enabled parameter A8 the error Ed1 is displayed which persists until the start of the next defrost cycle Default dtl 4 C dt2 End defrost temperature SET POINT auxiliary evaporator dt2 acts in the same way as parameter dt1 described above but referring to the auxiliary evaporator Default dt2 4 C dP1 Maximum defrost duration main evaporator Determines the maximum defrost duration on the evaporator in minutes or seconds see parameter dC if defrost by temperature is selected If timed defrost has been selected this is the actual duration of the defrost Default dP1 30 minutes dP2 Maximum defrost duration auxiliary evaporator It acts identically to the parameter dP1 described above but refers to the auxiliary evaporator Default
17. rt rL and rH and therefore when power is restored monitoring resumes automatically from rt 0 Default r5 0 7 3 Compressor management parameters 26 fo Compandfandelayonstatup SYF min C 0 15 9 27 fel Mmimum mebewensueewesams SYF mn C 0 15 100 Minimum compressor OFF time o es Minimum compressor ON Gime sy f min fo as fre Bo ea fputysetig s mn c fo Bi fee Continuous cycle duration syr tos c 9 15 o bz feo Alarm bypass after continuous cycle SYF hous C 2 15 o bs fe Maximum pump downtime syr min C 0 30 9 54 s Comp stari delay after open PD valve syr see C 5 60 9 Bs feo EmbleawosatfumtioniD syr mg C 9 1 0 B6 ci Select Pump down by time or pressure syr flag C 9 1 9 Br je Second compressor delay syr se 4 250 0 c0 Compressor and fans start delay if FAN relay present on start up When the controller is switched on the compressor and the evaporator fans start after a delay in minutes equal to the value set for this parameter in order to protect the compressor against repeated power ups in the event of frequent power drops Example setting cO 6 obliges the compressor to wait 6 minutes before starting from when power returns accensione strumento In the event of systems with more than one compressor the parameter cO Dower ON m re
18. the timed switch ON and or OFF events parameters tON and tOFF of light or aux according to parameter H8 are always active in OFF status too Cod CAREL 030220141 preliminary version del 06 09 04 19 ir33 6 5 Light management Light can be controlled by a number of sources Key Supervisor Door switch and Curtain switch The light is switched on and off in the following events Key Pressing the key Variation in value from the supervisor Change in the status of the contact opening closing Change in the status of the contact opening closing On detecting light or darkness When the digital inputs selected as door or curtain switches are stable the light can always be switched on or off from the keypad or the supervisor IMPORTANT the door switch features two different algorithms for switching the light on off 6 6 Defrost The parameter dC establishes the measurement unit for the times set by the parameters dI defrost interval and dP1 dP2 maximum defrost duration If the auxiliary relay is selected as the auxiliary evaporator defrost output H1 the defrost is performed at the same time on both evaporators The parameter d 1 displays the defrost probe set for the main evaporator the first probe assigned as a defrost probe The parameter d 2 displays the defrost probe set for the secondary evaporator the second probe assigned as a defrost probe If no probes have been assigned to the defrost function
19. 50mA max Rel 1 Rel 2 EN60730 1 12 A 5 1 A 25 V UL 873 12A 5FLA 5A1FLA 30LRA 6LRA Maximum total current on terminal 5 12A Panel mounting IP65 IR33S EV 0 IR33S EX 0 IR33S EY 0 IR33S EZ 0 IR33S AV 0 IR33S AX 0 IR33S AY 0 IR33S AZ 0 Cod CAREL 7030220141 preliminary version del 06 09 04 Rel 2 Rel 1 Compressor a Serial interface To Carel Network Power supply IR E 230V 25mA max IR A 115V 50mA max 65 ir33 Rel 1 Rel 2 EN60730 1 12 2 A 5 1 A 250V UL 873 12A 5FLA 5A 1FLA 30LRA 6LRA Maximum total current on terminal 5 12A Panel mounting IP65 Serial interface Rel 2 Rel 1 Power supply IR E 230V 25mA max IR A 115V 50mA max IR33Y EP 0 IR33Y EQ 0 IR33Y ES 0 IR33Y EU 0 IR33Y AP 0 IR33Y AQ 0 IR33Y AS 0 IR33Y AU 0 ir33 Connections 115 230Vac switching versions Rel 1 Rel 2 EN60730 1 12 2 A 8 4A ov UL 873 12A5FLA 8A2FLA 30LRA 12LRA Maximum total current on terminal 3 12A Panel mounting IP65 Rel 1 Rel 2 EN60730 1 12 2 A 8 4A 250V UL873 12A5FLA 8A 2FLA 30LRA 12LRA Maximum total current on terminal 3 12A Panel mounting IP65 To Carel Network interface Serial Rel 2 uel e2epiojur Aejdsiq ajoway oL Compressor Power supply 115 230V 50mA max IR33S HA 0 IR33S HM 0 IR33S HL 0 IR33S HT 0 To Carel Network in
20. CHt and the alarm CHt are generated automatically In the above situation any auxiliary outputs configured accordingly are activated Condenser probe Condenser fan outputs selected OFF 6 11 HACCP Hazard Analysis and Critical Control Point This function allows advanced control of the operating temperature and the recording of any anomalies due to power failures or increases in the operating temperature due to various causes breakages severe operating conditions operator errors etc This function can only be activated on the controllers with the RTC option fitted There are two types of HACCP alarm signalled on the display with the following codes respectively HA and HF HA if during operation the temperature measured is higher than the threshold set for the parameter AH high temperature alarm threshold for a time Tp higher than the sum of the parameter Ad specific HA alarm delay for HACCP and the parameter Htd temperature alarm detection delay the HA alarm is generated HA alarm If the control temperature is higher than the threshold value AH for a certain time Th Where AH High temperature alarm threshold check if the programming of parameter A1 is set for relative or absolute values T Ad Htd Ad Temperature alarm delay Htd HA HACCP alarm delay When the event occurs the following data are saved hour minutes and day of the week type of alarm maxim
21. Code gt lt ETX gt lt chkh gt lt chkI gt In this way the program on the PC automatically updates the table with the type of unit The user will have noted the whether the address assigned by the semi automatic procedure corresponds to the description of the controller Example Address Line Description Type of unit 1 Dairy IR32 2 1 Dairy 3 IR32 3 1 Dairy 2 PB 4 Meat 2 IRMPX 5 1 Meat IRMPX 7 1 Frozen IR32 At the end of the address assignment procedure the user can update the descriptions of the new controllers installed The ir33 controllers can enter address assignment status with the following sequence of operations e pressing and lw for 5 seconds Cod CAREL 030220141 preliminary version del 06 09 04 59 ir33 e setting RU 66 e pressing Now the instrument displays the Add message When it receives the new address it will show its value for 5 seconds on the display The address assignment procedure has a fixed timeout of 60 seconds 9 1 3 Phase 3 changing addresses In the third phase the use can modify or change the serial addresses assigned to the controls changing over to free addresses for temporary use Example Address Line Description Type of unit 1 1 Dairy IR32 2 1 Dairy 2 IR32 3 1 Dairy 3 IR32 5 1 Meat IRMPX 6 1 Meat 2 IRMPX 7 1 Frozen IR32 For some controllers the addresses cannot be change
22. Day pile Days 0 7 1 h Hour a Hours 0 23 0 n Minutes Fete Min si 0 59 0 t Duration TEE Hours k 0 99 0 91 HA1 Date time of penultimate HA event MSYF C y Year ARE Years 0 99 0 M Month Months ki 0 12 1 d_ Day aos Days 0 7 l h Hour ibd Hours id 0 23 0 n Minutes ide Min 0 59 0 t Duration SEXT Hours i 0 99 0 92 HA2 Date time of third from last HA event MSYF C y Year ORI Years 0 99 0 M Month Months 0 12 1 d Day NER Days id 0 7 1 h Hour JOE Hours 0 23 0 n Minutes FERE Min 0 59 0 t_ Duration TEE Hours sa 0 99 0 93 HFn Number of HF events recorded MSYF C 0 15 0 94 HF Date time of last HF event MSYF C y Year sio Years x 0 99 0 M Month Months T 0 12 1 d Giorno olor Days 0 7 1 h Hour TEE Hours 0 23 0 n_ Minutes by Min 0 59 0 t_ Duration uid Hours T 0 99 0 95 HF1 Date time of penultimate HF event MSYF C y Anno SEE Years a 0 99 0 M Month Months 0 12 1 d Day FEAT Days T 0 7 1 h Hour ida Hours 0 23 0 n Minutes bill Min 0 59 0 t Duration TTE Hours B 0 99 0 Cod CAREL 7030220141 preliminary version del 06 09 04 57 ir33 ir33 96 HF2 Date time of third to last HF event MSYF C 0 y Year doo Years 0 99 0 M Month Months 0 12 1 d Day dua Days ki 0 7 1 h Ora FASE Hours T 0 23 0 n_ Minutes dul Min 0 59 0 t Duration TE Hours Ze 0 99 0 x E HACCP alarini de
23. Default Ado 0 gt Normal algorithm Ac Condenser high temperature alarm If a probe is set as the condenser probe the condenser temperature can be monitored to signal the high temperature alarm probably due to obstruction or fouling Cod CAREL 7030220141 preliminary version del 06 09 04 45 ir33 If the condenser temperature is gt Ac AE 2 the pre alarm is signalled displaying the alarm message cht If in the pre alarm situation the condenser temperature falls to lt Ac the pre alarm is reset and the signal cht disappears If the condenser temperature increases gt Ac AE the alarm CH is activated and the compressor is stopped The alarm can only be reset manually HC alarm and Refrigeration OFF manual reset Ac AE 2 Ac Ac AE Condenser Pre alarm temperature Only HC alarm display automatic reset In addition the auxiliary relay can be set as a condenser fan output see parameters H1 controlled according to the following diagram Fans ON Condenser Temperature Ac AE Ac Fans OFF In case of an error to the condensation probe the alarm and pre alarm are activated and also the condensation fans output if selected Important if no condenser probe is selected the condensing temperature alarm and pre alarm are disabled and the condenser fan output if selected is activated Default Ac 70 0 degrees AE High c
24. Default A4 0 gt Probe 4 absent C1 Calibration or offset for probe 1 C2 Calibration or offset for probe 2 C3 Calibration or offset for probe 3 C4 Calibration or offset for probe 4 ir33 These parameters are used to correct the temperature measured by the probes using an offset The value assigned to these parameters Is in fact added to positive value or subtracted from negative value the temperature measured by the probes The temperature value is corrected by the offset before checking if the reading is off range Example to decrease the temperature measured by probe 1 by 2 3 degrees set C1 2 3 The calibration or offset can be set from 20 to 20 Warning if the probe is disabled the display shows the string In the event of a probe error the display shows the corresponding error message SET When displaying the parameter pressing id shows the value of the corresponding probe already corrected with the offset pressing again displays the code Default C1 0 gt no offset for the reading of probe 1 C2 0 gt no offset for the reading of probe 2 C3 0 no offset for the reading of probe 3 C4 0 gt no offset for the reading of probe 4 7 3 Temperature control parameters 6 St femperatiresetpont MSv cr F oo 2 m 19 2 Maximum set point alowed Msvr rr C 60 200 n Do o operatingmode sw e 2 0 Bi
25. Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled pen Disabled Disabled Disabled Disabled Disabled Disabled EN aanaER AN W es 9 w ML Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled duty setting A6 duty setting A6 Disabled Disabled Disabled Disabled duty setting A6 duty setting A6 Disabled Disabled Disabled Disabled de sli re n dll dEi Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled ao uo e ST scsi eZ TRE Pa Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled E Genn Ee pon N E Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Ko p ES e poo Ye ii Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled IRS ft ili lee ie ee y y y rCt Disabled Disabled Disabled Disabled Disabled Disabled Add Disabled Disabled Disabled Disabled Disabled Disabled ESSA dn se ile or en Pre Disabled Disabled Disabled Disabled Disabled Disabled ui iran e di EB Disabled Disabled Cod CAREL 030220141 preliminary version del 06 09 04 55 ir33 Disabled Disabl
26. RTC G parameters by pressing w During the ON or OFF band of the output selected with parameter H8 you can disable or enable the output with the keypad and in any event all other ON OFF sources remain valid door switch curtain switch keypad IMPORTANT you can also analyse just one of the ON or OFF events in which case you can activate the OFF or ON event example you can arrange for the lights to go on automatically and be turned off manually from the keypad if you leave the premises IMPORTANT the ton and toF timed ON and OFF light or aux events according to parameter H8 are active in OFF status too Therefore it may happen that if the output is programmed as disabled in OFF H1 8 or 9 outputs disabled in OFF if an activation or disabling event occurs during OFF status when re activated the output will indicate the status following the event that occurred and therefore this could differ from the status at disabling time tc RTC date time setting This parameter is used be set the date time of the internal Real Time Clock A Selecting the parameter tc and pressing the E button accesses a submenu in which the or V button can be used to display and set the IR month day of the month day of the week hour and minute y03 M03 v d06 Iv Iv v nso the following are set in the example Thursday 6 March 03 at 11 56 hours where y indicates the year 0 99 M indicates the month 1 12 where J
27. S Xp C compressor control B 5x defrost by stopping the compressor B ET p electric heater or hot gas defrost Bg bx e 4 continuous cycle B EI n duty setting Bg 5 ea evaporator fans AI bx ea Ix auxiliary output The controllers can be fitted with a maximum of one auxiliary relay The associated functions are e alarm output normally open or closed auxiliary output light output second evaporator output control output for pump down valve control output for condenser fans second delayed compressor output auxiliary output with deactivation set to OFF light output with deactivation set to OFF no function associated with the output reverse output being controlled with neutral zone The controllers can be fitted with a maximum of two digital inputs or with three probe inputs The associated functions are the following e immediate alarm e delayed alarm e enable defrost e start defrost e door switch with compressor and fan shutdown and light management e remote ON OFF e curtain switch with Set Point variation and light management e low pressure alarm Cod CAREL 7030220141 preliminary version del 06 09 04 17 ir33 ir33 e door switch with fan shutdown and light management e Direct Reverse selection e light sensor and light management The controllers can be fitted with a maximum of four probes three of which as alternatives to the digital inputs Th
28. SFLA 30000 12 2 A on N O and N C 100000 30LRA C300 12 A res I2FLA 2HP 10 10 A 100000 NLRA 30000 insulation from the very low voltage snodi arts 6mm in air 8 on surface 5 3750V insulation primary insulation between independent OU 3mm in air 4 on surface relay outputs 1 250V insulation Type of connection Cross section Current maximum fixed screw on for cables from 0 5 removable for screw blocks 12A to 2 5 mm2 faston with crimped contact Connections Correct sizing of the power cables and connection between the instrument and the loads is the responsibility of the installer The maximum current in common terminals 1 and 3 is 12A according to model If using the controller at maximum operating temperature and at full load use cables with maximum operating temperature of at least 105 C EA 34 4x76 2x65mm 0 L dimensions 34 4x76 2x 79mm H Case plastic EA 365mm 0 L embedding depth 70 5mm H panel mounting with side securing brackets a drilling template dimensions 29x71 mm digits 3 digit LED Display display from 99 to 999 operating status indicated with graphic icons on the display Keypad 4 silicon rubber buttons Infrared receiver available according to the model Clock with b buffer battery available according to the model Buzzer available in all models error at 25 C 10 ppm 45 3 min yea
29. The controller exits the continuous cycle procedure after the time set for parameter cc has elapsed or upon reaching the minimum specified temperature see the minimum temperature alarm parameter AL Default cc 0 hours c6 Alarm bypass after continuous cycle This is the time in hours for which the temperature alarm is deactivated after a continuous cycle If the temperature of the refrigeration unit after the continuous cycle falls due by inertia below the minimum temperature set point AL the activation of the low temperature alarm is delayed for time c6 Warning remember that at the minimum specified temperature see the minimum temperature alarm parameter AL the continuous cycle is forced OFF and deactivated Default c6 2 hours c7 Maximum pump down time This parameter determines depending on the setting of parameter c10 the maximum time in minutes by which the circuit must reach the required low pressure value in pump down operation c10 0 or the compressor operating time after the closing of the pump down valve in case of pump down operation by time c10 1 The Pump Down valve must be connected to the auxiliary output setting the relevant parameter H1 If pump down by pressure is selected c10 0 When reaching the maximum pump down time the compressor stops and alarm Pd is activated The Pd alarm disables the compressor autostart
30. Z Serial o Rel 2 g Rel 1 Remote Ho display L j H 5 Power supply IR33S LA 0 IR 0 12V 300mA maxx IR L 12 24V 300mA max IR33S LM 0 IR33S LL 0 IR33S LT 0 IR33S 0A 0 IR33S 0M 0 IR33S 0L 0 IR33S 0T 0 Cod CAREL 030220141 preliminary version del 06 09 04 69 ir33 Rel 1 Rel 2 EN60730 1 12 2 A 8 4 A UL 873 12A5FLA 8A2FLA 30LRA 12LRA Maximum total current on terminal 3 12A Panel mounting IP65 Rel 1 Rel 2 EN60730 1 12 2 A 8 4XA UL 873 12A5FLA 8A 2FLA 30LRA 12LRA Maximum total current on terminal 3 12A Panel mounting IP65 Rel 3 8 4 A 8A 2FLA 12LRA Rel 1 ompressor IR33Y LN 0 IR33Y LR 0 IR33Y LC 0 IR33Y LB 0 IR33Y ON 0 IR33Y 0R 0 IR33Y 0C 0 IR33Y 0B 0 Rel 3 Rel 1 ompressor IR33Y LA 0 IR33Y LM 0 IR33Y LL 0 IR33Y LT 0 IR33Y 0A 0 IR33Y 0M 0 IR33Y 0L 0 IR33Y 0T 0 Cod CAREL 030220141 preliminary version del 06 09 04 70 Rel 2 Defrost Rel 2 Defrost des To Carel Network interface Serial Remote display a fejdsig ajowey oL Probe 1 Probe 2 Power supply IR 0 12V 300mA max IR L 12 24V 300mA max To Carel Network interface IT Remote display L j Serial uel TTE TIT Aejdsiq ajowey oL Power supply IR 0 12V 300mA max IR L 12 24V
31. and normal control resumes directly If the dripping and post dripping times are set to zero the compressor and the fans remain in the previous status and normal control resumes 6 6 6 Dripping Dripping time is set by parameter dd in this status e the compressor is OFF e the fans are OFF At the end of dripping time the post dripping phase starts with the fans OFF Fd the compressor restarts normal operation the fans are stopped If the post dripping time with fans OFF is set to zero normal control is resumed directly Cod CAREL 7030220141 preliminary version del 06 09 04 21 ir33 6 6 7 Post dripping fans OFF The post dripping time with fans OFF 1s set by parameter Fd At the end of the post dripping time with fans OFF normal control resumes 6 6 8 Notes on the defrost function e Ifdefrost with RTC is selected the parameter dI has no effect on the days when defrost events are set In any case the dI timer is updated and the parameter becomes valid on all days only in the event of RTC alarms e The timer used to determine the defrost interval dI is updated cyclically when reaching the end of the interval thus enabling cyclic defrosts The timer is also updated when the unit is OFF If the timer dI expires when the unit is OFF a defrost is performed when the unit is started If an RTC or manual defrost is run from the keypad or the supervisor the timer linked to dI is not reset at the start of the defrost
32. been set been set clock present Xx ou LIGHT auxiliary X LIGHT LIGHT auxiliary output ON output OFF n 7 A SERVICE Notilalfin tign Malfunction e g E PROM error or probe fault Request service HACCP HACCP HACCP function enabled HACCP DINUHOR HACCP alarm saved HA and or HF not enabled CONTINUOUS CONTINUOUS CYCLE POTUM CONTINUOUS CYCLE function w A CYCLE function CYCLE function activated request not activated 2 2 Keypad PRG PRG MUTE Mutes the audible alarm buzzer and deactivates the alarm relay If pressed for more than 1 second during the reception of the automatic network address assignment request package starts the address assignment procedure see paragraph Automatic serial address assignment procedure If pressed for more than 5 seconds accesses the menu for setting the type E parameters frequent If pressed for more than 5 seconds together with accesses the menu for setting the type C parameters configuration If pressed for more than 5 seconds when switching the instrument ON activates the procedure for setting the default parameter values If pressed for more than 5 seconds together with 4 resets any active alarms with manual reset the message rES indicates that the alarm has been reset any delays relating to the alarms are re activated If pressed for more than 1 second displays and or enables setting the set point PRG If pressed for more than 5 seconds together with El accesses the
33. by the time c6 after the continuous cycle At the end of these two times the temperature alarm if detected is signalled without waiting for the time set for Ad If times d8 and c6 are set on zero the temperature alarm is signalled after the time Ad As already indicated by the default value for parameters AL and AH the instruments are programmed at our factory as default with the relevant thresholds and the high and low temperature alarms are disabled The alarms when enabled activate the buzzer if enabled and show a code on the display HI for the high temperature and LO for the low temperature alarm The following conditions generate the temperature alarms e high temperature alarm the temperature measured by the virtual control probe is above the threshold set for parameter AH e low temperature alarm the temperature measured by the virtual control probe is below the threshold set for parameter AL Default Ad 120 gt 120 delay in minutes with respect to the signalling of the temperature alarms A4 Multifunction digital input configuration In the 1133 series this parameter and the model of controller used define the meaning of the multifunction digital input The possibilities are described below A4 0 Input not active The multifunction digital input is not used and is the factory specified configuration for all versions A4 1 Immediate external alarm The
34. c8 5 5 seconds delay c9 Enable autostart function with PD operation If the parameter is set to 0 the system will perform a pump down cycle each time the pump down valve closes If the parameter is set to 1 on the other hand the system will perform a pump down cycle each time the pump down valve closes and on each successive request from the low pressure switch when there is no cooling requirement autostart situation The autostart function is disabled if Pd alarms are active or 1f pump down by time is selected The parameter is active if c7 0 Default c9 0 gt only one pump down cycle is run whenever the pump down valve is closed c10 Select pump down by pressure or by time This parameter determines if the pump down procedure must end following the activation of the low pressure switch or after a set time In this case after the valve closes the compressor works for time c7 or until the low pressure value is reached When this time has elapsed the compressor is stopped irrespective of the status of the low pressure input The PD alarm Pump down finished by timeout and the compressor autostart function in Pump down state are disabled Default c10 0 gt Pump down by pressure c11 Second compressor delay This parameter determines the delay of the second compressor compared to the main compressor during start up whereas the stop occurs simultaneously IMPORTANT select the auxiliary output as a d
35. delay oo MSYF C of 250 HAn Number of HA alarm events recorded This parameter indicates the number of HA alarms activated A maximum of 15 events can be counted For each alarm event after the 15th the counter stays at 15 Default HAn 0 HA Date time of the last HA event HAI Date time of the penultimate HA event HA2 Date time of the third from last HA event def This parameter accesses a submenu where by pressing the and buttons the year month day hour minutes and duration of the last HA alarm activated can be scrolled e g y03 gt M07 gt d22 gt h23 gt m57 gt t99 indicates that the last alarm HA was activated on 22 July 2003 at 23 57 and lasted 99 hours Default 0 HFn Number of HF alarm events recorded This parameter indicates the number of HF alarms activated A maximum of 15 events can be counted For each alarm event after the 15th the counter stays at 15 Default HFn 0 HF Date time of the last HF event HFI Date time of the penultimate HF event HF2 Date time of the third from last HF event A This parameter accesses a submenu where by pressing the and V buttons the year month day hour minutes and duration of the last HF alarm activated can be scrolled Cod CAREL 030220141 preliminary version del 06 09 04 5 ir33 e g y03 gt M08 gt d29 gt h19 gt m45 gt t98 indicates that the last HF alarm was activate
36. desired value 14 Press to temporarily save the new value and return to the display of the sub parameter code PRG 15 Pres Ld to return to the display of the parent parameter Cod CAREL 7030220141 preliminary version del 06 09 04 10 ir33 4 4 Parameter classification The parameters as well as being divided by TYPE are also grouped into logical categories identified by the initial letters or symbols of such parameters The following table lists the categories and the corresponding letters Parameters Category Text Icon Temperature probe management parameters Pro A r Temperature control parameters CtL c Compressor safety time and activation parameters CMP d Defrost management parameters dEF He A A Alarm management parameters ALM F Fan management parameters Fan H configuration General configuration parameters addresses enabling etc CnF AUX H HACCP HACCP parameters HcP HACCP RTC RTC parameters rtc GO 4 5 Storing new values assigned to parameters PRG 1 To definitively store the new values of the modified parameters press ld for more than 5 seconds to exit the parameter setting procedure All the modifications made to the parameters temporarily stored in the RAM can be cancelled and normal operation resumed by not pressing any button for 60 seconds thus allowing the parameter setting session to expire due to timeout Important if the programming
37. disturbance that is a more stable and more precise reading The parameter 2 acts on the temperature measurements filtering the minimum variations and at the same time considers the average value of the measurements made 3 Probe display rate This parameter is used to set the rate at which the temperature display is updated The temperature shown on the display tends to follow rapid deviations away from the set point very slowly and vice versa moves very quickly in the event where the temperature displayed is approaching the set point If the control temperature exceeds the high or low temperature thresholds and an alarm 1s activated AL or AH or if the maximum number of filtering steps 255 is exceeded see the Timeout column in the table below the filtering would immediately be bypassed and the temperature displayed would be the temperature effectively measured until all the alarms are reset The action of the parameter 3 only affects the temperature displayed and not the temperature used for the control functions Important e the adjustment temperature actually measured differs from the displayed value and therefore the outputs may not be activated with reference to the latter temperature value e the parameter 3 acts on the temperature displayed by the instrument if tE 0 no probe displayed by the repeater display if the repeater display is envisaged tE lt gt 0 the parameter 3 will act on the temp
38. fa Automatic nighttime setpoint variation MSYF cF C 30 20 99 Cod CAREL 030220141 preliminary version del 06 09 04 31 ir33 fag cfo o B3 fn remperature monitoring interval MSYF hus F 99 0 Di ii Maximum temperature read MSYF GE F Ds jn Minimum temperature read MSYF GE F St Set point Establishes the set point value used by the controller Default St 0 0 rd Control delta Establishes the value of the differential or hysteresis used for temperature control Low values DIRECT Freddo Cooling guarantee an ambient temperature that deviates only slightly from the set point but involves ni frequent starts and stops of the main actuator normally the compressor In any case the ON compressor can be protected by suitably setting the parameters that limit the number of a fiusi re activations hour and the minimum OFF time see the C parameters p Actuator Default rd 2 OFF Set Point r1 Minimum set point allowed Determines the minimum value that can be set for the set point Using this parameter prevents the user from setting a set point lower than the value indicated by r1 Default ri 50 r2 Maximum set point allowed Determines the maximum value that can be set for the set point Using this parameter prevents the user from setting a set point higher than the value indicated by r2 Default r2
39. main or secondary evaporator the defrost will end by timeout after the periods dtl and dt2 6 6 1 Defrost events The following events activate the defrost function Expiry of RTC trigger Ue Depending on enabling status At start up Depending on enabling status At start up d5 Supervisor Aways ee Keypad Away e Implementation of defrost depending on enabling status If a digital input is configured to enable the defrost the defrost is performed when such input is in the enabling status otherwise it stays pending IMPORTANT defrost started from the keypad or by the supervisor is always performed even when there is a delayed defrost request from external digital input or if there is a defrost enabling input in non enabled or delayed status WARNING if parameter r3 is set to 1 Direct or 2 Reverse defrost is never performed 6 6 2 Defrost request status This status exists when one of the events that activates the defrost is present but defrost cannot be started and therefore is put on hold for the following reasons Compressor and fans start up delay c0 as they delay activation of the compressor Compressor protection times c1 c2 c3 as they delay the activation of the compressor Low pressure alarm only with hot gas defrost as this delays the activation of the compressor Continuous cycle running Pump down procedure running because this delays compressor activation Defros
40. menu for setting the type C parameters configuration det Pressing this button for more than 1 second together with key displays a sub menu used to reach the parameters relating to the HACCP alarms HA HAn HF and HFn A If pressed for more than 5 seconds together with key 4 it starts the report printing procedure if the controller is connected to the printer interface A lw UP AUX If pressed for more than 1 second it activates deactivates auxiliary output 1 If pressed together with LV for more than 5 seconds activates deactivates continuous cycle operation the messages ccb and ccE indicate respectively the continuous cycle start and end request ISET If pressed for more than 5 seconds together with key sl it starts the report printing procedure if the controller is connected to the printer interface G If pressed for more than 5 seconds together with Ed resets any active alarms with manual reset the message rES indicates that the alarm has been reset any delays relating to the alarms are re activated Cod CAREL 030220141 preliminary version del 06 09 04 6 ir33 LT DOWN DEF If pressed for more than 5 seconds it activates deactivates a manual defrost the messages dFb and dFE indicate respectively the defrost start and end request f pressed together with XI for more than 5 seconds activates deactivates continuous cycle operation the messages ccb and ccE
41. od St e EE Lic OFF can also be used to avoid simultaneous starts of a series of units Simply set a lipidi ana pha Ee ON different value of c0 for each compressor richiesta intervento insertion request A EEEE EE OFF Default cO 0 gt no minimum delay is set when the compressor is started when switching the instrument on compressore compressor c1 Minimum time between two successive starts of the compressor Sets the minimum time in minutes that must elapse between two starts of the compressor irrespective of the temperature and the set point Setting this parameter limits the number of starts per hour Example if the maximum number of activations hour allowed is 10 richiesta inserimento jp 1 nia ON simply set c1 6 to ensure that this limit is respected insertion request Wey so fe Aon 2 SORE Default cl 0 gt no minimum time is set between two starts compressore M ta See lea compressor PRIM Waser REA OFF c2 Minimum compressor OFF time Sets the minimum time in minutes for the compressor to remain OFF richiesta inserimento f 1 The compressor is not started again until the minimum time selected insertion request c2 has elapsed from when it last stopped compressore Note this parameter 1s useful to ensure the balancing of the pressure after compressor the compressor stops for systems with hermetic and capillary compressors Default c2 20 gt no minimum OFF t
42. only Same as for option A4 5 with the difference that when opening the door only the fans are stopped rather than the compressor and the fans Note if more than one digital input is configured as the door switch the door open status occurs when at least one of the inputs is open A4 10 Direct Reverse operation The digital input is used to select Direct operation for refrigeration with open contact or Reverse operation for heating with closed contact A switch can therefore be connected to select heating or cooling operation according to position Depending on the value of parameter r3 the following configurations are possible with 13 0 Contact open Direct operation with defrost control Contact closed Reverse operation with r3 1 or 13 2 Contact open Direct operation Contact closed Reverse operation Warning if A4 10 the status of the digital input has priority over the parameter r3 that is the value assigned to parameter 13 is ignored and only the status open or closed of the digital input is considered Cod CAREL 030220141 preliminary version del 06 09 04 43 ir33 Notes 1 if more than one digital input is configured for direct reverse operation The direct mode status occurs when at least one of the inputs is open 2 the status of the digital input selected for direct and reverse mode control has priority over the operating mode set us
43. real time clock Pump down This function ensures the compressor is stopped only when the evaporator is discharged see the paragraph Pump down and low pressure Condenser One of the new characteristics offered by these controllers is the possibility to manage via an NTC probe input the condensing temperature for both the alarms and control functions using the auxiliary output configured by parameter H1 Double evaporator Two independent evaporators can be managed connected to the same circuit The end of defrost temperatures are independent and can be set by parameters dt1 dt2 HACCP This function increasingly required in the refrigeration market is included as standard on all models with clock This allows the monitoring of critical points by measuring and recording the temperatures in the event of high temperature alarms or power failures Management of the light The ir33 range has been enhanced by the introduction of the function for managing the light when the door opens Keypad protection The keypad and the remote control can be disabled to avoid tampering by unauthorised persons above all in the event when the controller is installed in an area open to the public Continuous cycle The continuous cycle function ensures the operation of the compressor for the time set by the corresponding parameter This function is useful when a rapid reduction in the temperature is required Serial connection The entire range o
44. session ends by timeout the clock parameters will not be reset as these parameters are saved immediately when entered PRG If the instrument is switched off before pressing Ed all the modifications made to the parameters and temporarily saved will be lost 4 6 Setting the set point To display or set the set point proceed as follows 1 Press Flo more than 1 second to display the set point A ana DI 2 Increase or decrease the set point using the and M buttons respectively until reaching the desired value SET 3 Press gi again to confirm the new value 4 7 Alarms with manual reset z The alarms with manual reset can be reset by pressing ted and beJ together for more than 5 seconds 4 8 Procedure for setting the default parameter values To set the default parameter values for the controller proceed as follows 1 Switch the instrument off 2 Press the Ww key PRG 3 Switch the instrument on again holding the ld button until the message std is shown on the display Note the default values are set only for the visible parameters e g C or F according to models see the Operating parameters table Cod CAREL 7030220141 preliminary version del 06 09 04 11 ir33 4 9 Serial address automatic assignment The automatic setting of the serial address is a special procedure that by using an application installed on a PC connected to the CAREL network to set and manage in a simple way the addresses of a
45. tenth of a degree 6 0 the readings are displayed to the tenth of a degree 6 1 the readings are displayed without the tenths of a degree Default 6 0 gt decimal point displayed ItI Probe displayed on instrument For selecting the probe to be displayed by the instrument AP 1 gt Virtual probe AT 2 gt Probe 1 tl 3 gt Probe 2 AP 74 gt Probe 3 AT 5 gt Probe 4 t 6 gt Do not select Warnings e Control is always based on the virtual control probe e Ifthe probe to be displayed has not been enabled the display will show the message Default tl 1 gt Virtual probe tE Probe displayed on external terminal Selects the probe to be displayed on the remote terminal tE 0 gt Remote terminal not present AE 1 gt Virtual probe tE 2 gt Probe 1 tE 3 gt Probe 2 tE 4 gt Probe 3 tE 5 gt Probe 3 tE 6 gt Do not select Warnings e Control is always based on the virtual control probe e Ifthe probe to be displayed has not been enabled or is in error the display will show the message e Ifthe probe to be displayed is in error the display will show the message e Ifthe terminal is not present the display will remain completely dark Default tE 0 gt Remote terminal not present Cod CAREL 7030220141 preliminary version del 06 09 04 30 P
46. the door is opened the fans are switched off Direct Reverse operation Contact open Direct operation 11 Light sensor Above the threshold off Below the threshold hysteresis off 12 Activation of AUX output Opening deactivation Closing activation Cod CAREL 030220141 preliminary version del 06 09 04 44 ir33 0 input not active l immediate external alarm 2 delayed external alarm 3 model M select probes open probe selected by parameter tI closed first probe enabled enable defrost 4 start defrost door switch with compressor and fans OFF 6 remote ON OFF curtain switch 8 low pressure switch 9 doorswitch with fans OFF only 0 O 0 direct reverse light sensor above the threshold off activation of AUX output Default A4 0 gt Digital input not active for all other models 4 1 1 AS Configuration of the second multifunction digital input For this parameter the same description relating to parameter A4 is valid obviously referring to the second digital input Default A5 0 gt Digital input not active A6 Stop compressor from external alarm The meaning of this parameter is similar to that of parameter c4 duty setting If an external alarm occurs immediate or delayed the compressor works for a time equal to the value set for parameter A6 in minutes while it remains OFF for a fixed period of 15 minutes Special cases A6 0 the com
47. the inputs is open Cod CAREL 7030220141 preliminary version del 06 09 04 42 ir33 A4 6 Remote ON OFF The digital input can also be programmed as a remote ON OFF switch When the contact 1s closed the controller is ON When the controller is OFF e The temperature is displayed alternating with the message OFF e The internal timer for parameter dI is updated If dl expires when the unit is OFF a defrost is performed when the unit is switched on again the auxiliary relays set to AUX and LIGHT remains active the buzzer and the alarm relay are de activated The controller does not perform adjustment defrosts continuous cycle signalling the temperature alarm and all other functions e The compressor protection times are observed When the instrument is switched back on all the functions are re activated with the exception of o defrost on start up o Compressor and fan delay on start up Contact closed ON The ON OFF from external digital input has priority over the keypad and the supervisor If A4 6 A5 6 the controller is ON with all the contacts closed Note if more than one digital input is configured as the remote ON OFF the OFF status occurs when at least one of the inputs is open A4 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 14 th
48. the probes can be installed up to a maximum distance of 10m from the controller using cables with a minimum cross section of 1mm shielded where possible To improve the 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 instrument for a more detailed description see the chapter Programming the instruments 3 Connect the actuators the actuators should only be connected after having programmed the controller In this connection carefully check the maximum capacities of the relays indicated in the technical specifications 4 Serial network connection all ir33 models are fitted with a serial connector for connection to the supervisory network via the serial interface code IROPZ48500 Take care when earthing the system in particular the secondary winding of the transformers that supply the instruments must not be earthed If connection to a transformer with earthed secondary winding is required an insulating transformer must be installed in between A series of instruments can be connected to the same insulating transformer nevertheless you are recommended to use a separate insulating transformer for each instrument WARNINGS Avoid installing the instrument in environments with the following characteristics relative humidity over 90 non condensing heavy vibrations or knocks exposure to continuous jets of water exposure to
49. 22 23 2 4 3 4 Programming th instrUments s wi ki s d dese os sese sens vos M 4 1 How to access type F parameters 4 2 How to access ype C parameters oen a P de fk dot Rosie a ee tek kn NER e EUER a s 10 43 Modifying parameters oie a m et vete ite e n t n a ey nen pen pepe kask ana ana 4 4 Parameter classification 4 5 Storing new values assigned to parameters rei 4 6 Setting the Set point tere be e ee e ad Petre ede otv eee el ve cbe e E UE RE RAE seen 4 7 Alarms with manual reset ss 4 8 Procedure for setting the default parameter values 4 9 Serial address automatic assignment De ACCOSSOLIES e 5 1 Parameter copying key 52 Compact retmote control cr eR REN NIRE ENSE GUERRE RE Ree e Re EROR Ee DR E E n 53 RS485 serial interface bo td 5 nte EE ER D reti et e ERUIT ettet ea tene sepan von nanye one edv te tede 54 Repeater display interface Option ete e en dei te UR RE ec VR Gi 6 Description of the software functions eene eere sette eerte eee ee eene erint ee eeee nane cenni ene rio sesta satanas ns setas eene setas seres setas sess etos seno 6 1 Models oen m pas bras Ports 6 2 Testing the display and keypad on start up 6 3 Switching the controller ON and OFF 6 4 6 5 6 6 6 7 6 8 Pump
50. 4 40 0 degrees F5 Condenser fan switch ON differential This is the differential used for adjusting the condensation fans Default F5 5 0 7 7 General configuration parameters 81 HO Serialaddress MSYF C 1 ou 82 HI Functionofrelay4 MSYF flag C 1 mo 83 H2 Disablekeypad R MSYF fag C i 6 1 84 H3 Remote control enabling code MSYF C of so 85 H4 Disable buzzer MSYF flag C Of 1 ol 86 H6 Lockkeypad MSYF C of 255 0 87 H8 Selection of activation output with time band MSYF flag C of 1 o 88 HPr Printprofil MSYF o su Cod CAREL 7030220141 preliminary version del 06 09 04 48 ir33 H0 Serial address This is used to assign to the instrument an address it responds to when connected to a supervisory or telemaintenance system Also valid for serial connection or network connection Default HO 1 HI Operating mode logic output AUXI relay 4 This establishes whether the fourth relay is used as an auxiliary output e g demister fan or other ON OFF actuator as an alarm output as a light output as a defrost actuator for the auxiliary evaporator as a pump down valve control as the condenser fan output or as a delayed compressor H1 0 Alarm output usually energised The relay is de energised when an alarm occurs The AUX output i
51. 6 1 during the defrost the last temperature read before the start of the cycle remains on the display dd Dripping time This parameter is used to stop in minutes the compressor and the evaporator fans after a defrost to facilitate evaporator dripping If dd 0 gt there is no dripping time therefore at the end of the defrost the control functions start immediately Default dd 2 minutes d8 Alarm bypass time after defrost and or door open Indicates the time in hours that the high temperature alarm signal is ignored from after the end of a defrost cycle or from when the door to the cold room is opened if the Multifunction input is connected to the door switch see parameters A4 and A5 Default d8 1 hour bypass d9 Defrost priority over compressor protective devices Ignores the compressor protection times at the start of the defrost Compressor protection times e cl minimum time between 2 successive starts e c2 minimum OFF time e c3 minimum operating time d9 0 the protection times are respected d9 1 the protection times are not respected Therefore defrost has higher priority and the compressor times are ignored In the hot gas defrost this 1s useful to avoid delaying the start of the defrost 1f the compressor has just stopped and there is a minimum time between two starts of the compressor Remember however that in this event the maximum number of compressor star
52. 6 09 04 56 ir33 58 dH 59 A0 Proportional factor variat of dl Alarm and fan differential SYF MSYF C F 50 100 0 2 0 20 0 1 aa Ad 64 A4 5 AS Digital input 1 configuration SYF M OO mim min uo 12 12 12 6 Digital input 2 configuration MSYF 66 A6 Stop compressor from external alarm 67 AT External alarm detection delay 68 A8 Enable alarms Edl and Ed2 SYF SYF SYF min min flag 100 250 1 alajaja ojo 69 Ado Light management mode with door switch MSYF flag 1 70 Ac 71 AE Condenser high temperature alarm High condens temperature alarm differential 72 Acd High condens temperature alarm delay SYF min 250 0 SYF SYF C F C F 70 5i 200 0 20 0 Qoo olo o oo a 74 F0 Fan management F flag C 0 2 0 75 F1 Fan start temperature F C F F 5 0 200 50 76 F2 Fan OFF with compressor OFF F flag C 1 1 0 77 F3 Fans in defrost F flag C 1 1 0 78 F4 Condenser fan switch OFF temperature MSYF CPF C 40 200 50 80 Fd Fan OFF after dripping F min F 1 15 0 82 HI Function ofrelay 4 MSYF flag C 1 10 0 84 H3 Remote control enabling code MSYF C 0 0 85 H4 Disable buzzer MSYF flag C 0 l 0 86 H6 Lock keypad MSYF C 0 255 0 89 HAn Number of HA events recorded MSYF C 0 15 0 90 HA DJDate time of last HA event MSYF C y Year Mh Years y 0 99 0 M Month Months x 0 12 1 d
53. 9 04 12 ir33 5 Accessories 5 1 Parameter copying key Programming keys PSOPZKEYO00 Figure No 1 and PSOPZKEYAO Figure No 2 for CAREL controllers are used to copy the complete set of parameters of the CAREL ir33 controller parameters The keys must be connected to the connector 4 pin AMP fitted on the compatible controllers and work even without switching the controller on as indicated in the operating instructions for the controller see the summary diagram in Figure 3 IMPORTANT PJOPZKEY00 to be used ONLY for PJ controllers PSOPZKEY to be used ONLY for powercompact ir33 MasterCella Power split MGE and I O module 6 eric Tales La PSOPZKEY aa n Chiave di programmazione Programming key Figure No 1 Figure No 2 Figure No 3 Three functions are available and are selected by using the two supplied dipswitches these can be accessed by removing the battery cover e Load the parameters into the parameter key of a controller UPLOAD e Copy from the key to a controller DOWNLOAD e Extended copy from the key to a controller EXTENDED DOWNLOAD Warning The parameters can only be copied between instruments with the same code The UPLOAD operation can however always be performed As specifically concerns 1133 controllers the following procedure is used to copy and download the parameters 5 1 1 Copying and downloading the parameters The following operations
54. FO 0 fans always ON FO 1 fans controlled according to the temperature difference between the virtual control probe and the evaporator temperature F0 2 fans thermostat controlled according to the evaporator temperature Warning remember that if a dripping period is set dd 0 the fans are nevertheless stopped irrespective of the value of FO Default FO 0 gt fans always ONpnot managed by the fan controller F1 Fan start temperature parameter valid only if F0 1 or F0 2 When F0 1 parameter FI indicates the minimum difference between room temperature and evaporator temperature for the fans to be started Therefore e evaporator temperature lt virtual probe F1 A0 the fans are ON e evaporator temperature gt virtual probe F1 the fans are OFF When stopped the fans can start again when the difference between the two probes is equal to F1 A0 where AO is the fan controller differential see the following figure Amb o When FO 2 parameter FI indicates the absolute temperature for a AMI A Nee starting the fans 2 Amb F1 A0 VO LN _ When F0 2 5 e evaporator temperature lt F1 A0 the fans are ON Evap e evaporator temperature gt F1 the fans are OFF ON Evap Fan OFF Notes e in the event of two evaporators and therefore two evaporator probes control will be performed using the
55. Lightsensor OFF ime svE se C 0 250 0 Important warning for the set times to become immediately operational the instrument needs to be turned off and on again If this operation is not carried out timing resumes operation the next time it is used A0 Alarm and fan differential This is the differential used for disabling high and low temperature allarme bassa temperatura allarme alta temperatura alarms AL and AH see the figure shown below and for Jow temperature amm g i temperature aarm managing the fans see the F parameters In the event of an alarm as E PE can be seen from the figure the value of AO in part determine the effective activation points of the temperature alarms AL AH Default A0 2 0 degrees set point A1 Type of threshold AL and AH Used for selection if the valuesof parameters AL and AH are considered absolute thresholds or relative with respect to the value of the set point Al 20 gt AL and AH are considered as thresholds relative with respect to the value of the set point Al 1 AL and AH are considered absolute thresholds Default Al 0 AL and AH are considered relative thresholds AL Minimum temperature alarm Used to determine the activation threshold for the low temperature alarm Relative threshold for low temperature alarm set point value of
56. M is corrupted and Red and green LEDs ON Error in Data being copied therefore the key cannot be copied The copy operation was not completed due to a serious error when transferring or Red LED on steady DA An copying the data Repeat the operation if the problem persists check the key connections LED OFF Batteries disconnected Check batteries Notes 1 At the start and the end of the UPLOAD and DOWNLOAD operations normal or extended the buzzer on the instrument will emit an audible signal 2 The DOWNLOAD operation normal or extended is possible even if the operating parameters and controller are incorrect If there is an error in the unit parameters these will be recovered by 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 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 the correct operation of the controller Cod CAREL 7030220141 preliminary version del 06 09 04 13 ir33 5 2 Compact remote control The COMPACT remote control features 20 buttons and allows direct access to the following parameters e Temperature Defrost Fans Alarms HACCP The following functions can also be controlled e Start defrost Aux Light ON
57. OFF Mute The standard remote control features the four buttons PRG mute SET UP and DOWN which access almost all the functions provided by the instrument keypad The keys can be divided into three groups based on their functions e Keys for enabling and disabling the use of the remote control e Keys for remote simulation of the instrument keypad e Keys for direct display of the most commonly used parameters Activating and deactivating programming from the remote control Key Immediate function Delayed function used to enable the remote control each START A instrument displays its own enabling code ends operation using the remote control EXIT d cancelling all changes made to the parameters pressing and holding for 5s ends use PRG used to display the configuration parameters of the remote control saving the modified parameters NUMBE used to select the instrument by entering the RS enabling code displayed GG By pressing the START button each instrument displays its own remote control enabling code H3 The NUMERIC keypad is used to enter the enabling code of the instrument in question At the end of this operation only the instrument with the selected enabling code will be programmed from the remote control all the others will resume normal operation Assigning different enabling codes to t
58. Select type of probe Used to select the type of probe used for the measurements P Q gt NTC Standard with range 50T90 C P 1 gt NTC Standard with range 40T150 C P 2 gt PTC Standard with range 50T150 C For correct readings from the PTC probes the hardware must be prepared to accept PTC readings as well as NTC Default P 0 gt NTC Standard with range 50T90 C Available on all models fitted with NTC inputs A2 Configuration of probe 2 Used to configure the operating mode of probe 2 A2 0 gt Probe 2 absent A2 gt Product probe used for display only A2 2 gt Defrost probe A2 3 gt Condensation probe In any case probe 2 is used for calculating the virtual control probe Default A2 2 gt Defrost probe A2 0 on model S gt Probe 2 absent A3 Configuration of probe 3 Used to configure the operating mode of probe 3 A3 0 gt Probe 3 absent Digital input A3 1 gt Product probe used for display only A3 2 gt Defrost probe A3 3 gt Condensation probe Default A3 0 gt Probe 3 absent A4 Configuration of probe 4 Used to configure the operating mode of probe 4 in the models that are fitted with it A4 0 Probe 4 absent Digital input A4 1 gt Product probe used for display only A4 2 gt Defrost probe A4 3 gt Condensation probe
59. aggressive and polluting atmospheric agents e g sulphur and ammonia gases saline mist smoke which may cause corrosion and or oxidation high magnetic and or radio frequency interference e g near transmitting antennas exposure to direct sunlight and atmospheric agents in general large and rapid fluctuations in ambient temperature The following warnings must be observed when connecting the controllers Incorrect connection of the power supply may seriously damage the system Use cable ends that are suitable for the terminals Loosen every screw and fit the cable end next tighten the screws and gently pull the cables to check their tightness When tightening the screws do not use automatic serewdrivers or adjust the screws to a tightening torque less than 50 Nem Separate as much as possible by at least 3 cm the probe signal and digitalinp t 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 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 the ther
60. al factor has no effect At this point if the defrost ends after 10 minutes dE replacing the known values in the formula gives 50 10 dH dr 5 5735 z consequently dr s 6152 It is therefore clear how the factor dH increases or decreases the new dl 6 7 3 Defrost at intervals calculated according to the duration of the previous defrost Skip defrost To enable the controller for this operating mode set the parameter d12 2 In this mode according to the duration of the last defrost operation the controller establishes whether the next defrost is skipped or not The following parameters are associated with this function e dl2 enable the function e dI interval between defrosts e dn nominal duration of the defrost in proportion to the defrost timeout value expressed as a e dPl and dP2 maximum defrost duration for evaporator 1 and 2 n When setting these parameters correctly the algorithm calculates using the following formulae dnl T ki and the nominal defrost times dn1 and dn2 in the case of the second evaporator obtained as percentages dn of dP1 and dP2 Cod CAREL 7030220141 preliminary version del 06 09 04 23 ir33 This function is based on a very simple but very effective principle If the defrost lasts less than or equal to the time dn1 or dn2 calculated with the formulae shown above the next defrost due after the time dl will be skipped When the next defrost is performed the che
61. algorithm proportionally lengthens depending on the value assigned to parameter dH the next defrost interval dl The parameter dH is a proportional factor that amplifies or attenuates the variation of dl dn dE dH AE Le ale di 100 dP 50 Cod CAREL 030220141 preliminary version del 06 09 04 22 ir33 dE effective defrost duration dl dI Adl AdI AdI Defrost ZAN _ DI dE lt dn dE lt dn H dE gt dn I Lime di dI dr dI New time interval calcolated between Time interval dI set between defrosts defrosts d Time interval dl set between defrosts Example If for example the defrost interval dI is set to 8 hours and the maximum defrost duration dP1 or dP2 is set to 30 minutes however usually the defrost is required for 50 less than the time dP1 or dP2 set parameter dn 50 The control algorithm will calculate using the formula dn 100 dP1 dn1 or dn 100 dP2 dn2 in the case of the second evaporator the nominal defrost times dn1 or dn2 which in the example shown corresponds to 15 minutes that is 5096 of dP The new interval dI for the next defrost is calculated by the algorithm using the formula udi FE T LE di 4 100 dP 50 where by setting the parameter dH proportional factor for the variation in dT between 0 an 100 a proportional gain from 0 to 2 can be selected If dH 50 the proportion
62. and defrost in progress o when the digital input is opened the defrost is immediately stopped and the unit restarts normal operation without performing the dripping or post dripping phased The LED starts flashing to indicate that the defrost request is pending awaiting the next enabling signal closing of the contact when the defrost will be performed completely Suggestion this function is useful for example in the event of multiplexed showcases with hot gas defrost In these systems defrosts must be performed by islands and therefore at any one time some islands are enabled to be defrosted while others are inhibited prevent defrosts on the units accessible by the public during opening times Any defrost request arriving when the contact is open will remain pending until the contact closes Note if more than one digital input is configured to enable the defrost the defrost will b disabled when at least one of the inputs is open A4 4 Start defrost from external contact This function used to start the defrost from an external contact If dI 0 is set and no defrost enabling signal related to the clock is set the defrost can only be performed on start up by the digital input by the supervisor and from the keypad This function is useful to run real time defrosts To perform the defrosts connect a cyclic mechanical or electronic timer to the digital input When the contact of the timer closes the defrost r
63. and designs 1 2 Features of the irr 33 range Alimentazione The ir33 series models are available with power supply in the following versions 12Vac 12 24 Vac dc switching 230Vac or 115 230 Vac switching All the models furthermore feature a low power mode to increase immunity to voltage drops When the voltage inside the instrument falls below a certain threshold the unit switches off the display so as to reduce power consumption while still continuing to operate normally the main relays remain energised and as soon as the voltage returns to the normal level the display comes on again Aesthetics and ergonomics The appearance of the 1733 series has been designed to harmoniously match the new lines of the refrigeration units It most striking aesthetic feature is its compactness its dimensions are 34 4x76 2x70 5 mm and 34 4x76 2x56 5mm in the 230 Vac version The drilling templates for both versions are 71x29 mm LED display ir33 is fitted with a very powerful and aesthetically pleasant display with 3 digits and decimal point minus sign and icons to simplify the reading of values and operating statuses Alarm buzzer All models in the 1133 series are fitted with a buzzer to signal the alarms Remote control To simplify the setting and display of the parameters depending on the model the instrument can be fitted with an infrared receiver to allow the use of the new compact remote control this device can be used o
64. anuary 1 December 12 d indicates the day of the month 1 31 u indicates the day of the week 1 7 where Monday 1 Sunday 7 h indicates the hour 0 23 m indicates the minutes 0 59 Cod CAREL 7030220141 preliminary version del 06 09 04 53 To set the RTC parameters follow the procedure as described for parameters td1 td8 These parameters have an immediate effect that is they are saved without having to press the SET button for 5 seconds The EtC alarm indicates a clock malfunction described in the table below Malfunction Solution ELC reset Communication error Repeat the operations after 5s automatic Clock stopped Restart with kick start automatic Incorrect calibration signature Delete calibration automatic Off time calculation on power up Cancel off time automatic Act time saving Repeat the operations for each task automatic Date and time not correct Set correct date and time manual ir33 The EtC alarm is generated when the malfunction occurs more than 3 consecutive times If a malfunction despite not having generated an EtC error has prevented the correct reading of the current time the clock functions off time calculation defrost activation on time bands will be temporarily suspended or performed with reference to the last time read correctly The clock readings are repeated every 5 seconds On power up the da
65. are used for the UPLOAD and or DOWNLOAD or EXTENDED DOWNLOAD functions simply by changing the settings of the dipswitches to change the function OFF OFF ON ON ON EXTENDED UPLOAD DOWNLOAD DOWNLOAD e open the rear cover on the key and position the 2 dipswitches according to the desired operation e close the rear cover on the key and insert the key in the connector of the controller e 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 refer to the relevant table below e atthe end of the operation release the button after a few seconds the LED goes OFF e remove the key from the controller LED signal Error Meaning and solution Red LED flashing Batteries discharged at start copy E om are discharged the copy operation cannot be performed Replace the Green LED flashing Batteries discharged during copy During the copy operation or at the end of the operation the battery level is low or at end of copy Replace the batteries and repeat the operation The parameter set up cannot be copied as the connected controller model is not Red green LED flashing Instrument not compatible compatible This error only occurs for the DOWNLOAD function check the code of the controller and run the copy only for compatible codes Error in the data being copied The instrument s EEPRO
66. arm set point value of AH AH 0 gt Alarm disabled Absolute threshold for high temperature alarm value of AH AH 200 gt Alarm disabled Cod CAREL 030220141 preliminary version del 06 09 04 39 ir33 Attention If the threshold AH is selected as relative the value for disabling the alarm is 0 if the threshold AH is selected as absolute the alarm disabling value is 200 Warnings for the relative threshold e thevalue of AL does not indicate the alarm temperature but the maximum permissible deviation off the set point or working point e changing the set point automatically changes the high temperature alarm while the maximum deviation allowed remains fixed Warnings e the high temperature alarm has automatic reset e forthe control probe alarm the high temperature alarm is reset and monitoring reinitialised Default AH 0 gt high temperature alarm disabled Ad Temperature alarm delay Indicates after how many minutes the temperature alarm is signalled when the temperature threshold is exceeded Warnings e Setting a delay for signalling the temperature alarm may help eliminate false alarms due to interference on the probe signal or brief situations for example the door to the cold room opened for a short period e No temperature alarms are generated during the defrost and continuous cycle procedures e The temperature alarm is delayed by the time d8 after the defrost and
67. ary evaporator is activated to open the hot gas valve 6 6 4 Defrost in progress During the defrost procedure the display 1s controlled according to the setting of parameter d6 If during this procedure the opening of the door 1s detected by the external digital contact the compressor is stopped running the Pump Down procedure if enabled When the door closes the compressor resumes the status envisaged for the selected defrost procedure During the defrost the status of the fans is determined by setting of parameter F3 Note 1 if the defrost probe is specified for the second evaporator but the second evaporator defrost output is not used the defrost on the second evaporator 1s performed using the output for the first evaporator Note 2 if the defrost probe is not specified for the second evaporator but the second evaporator defrost output is used the defrost on the second evaporator 1s performed by time or considering the temperature of the first evaporator 6 6 5 End defrost The defrost ends by temperature dtl dt2 or by time dP1 dP2 according to the setting of parameter do If defrost by temperature is selected it may also end by timeout dP1 dP2 and in this case according to the setting of parameter AS signal Edl or Ed2 is displayed In the case of an error in the probe selected for the defrost main or auxiliary evaporator it isralways performed by time with the timeout signal if enabled Ed1 or Ed2 In the case
68. ary output 1 Continuous cycle Cod CAREL 7030220141 preliminary version del 06 09 04 50 ir33 3 oxog Pres Mute Table 1 Functions enabled disabled on the standard keypad Default H6 0 gt all keys disabled H8 Select light or aux output to activate with time band H8 0 gt Time band linked to output configured for light H8 1 gt Time band linked to output configured as AUX With this parameter you can select the output to activate or disable according to the specified time band see parameters ton and tof Note the output you wish to command light o aux must be available and be selected with parameter H1 Default H8 0 time band linked to light HPr Print profile This is used for selecting the profile you require for printing the Report on an external printer Default HPr 0 gt Report printing disabled 7 8 HACCP alarm management parameters Number of HA events recorded Ser Hrs am MRNA od wm 91 HAI Dateftime ofpenultimate HAevet MSYF C J 92 HA2 jDate time of third from last HA event MYF C J l 93 HFn NumberofHF eventsrecorded MSYF C of aspoo 94 HF DateitimeoflastHFevent MSYF C __ po 95 HFI Date timeofpenultimate HF event MSYF C J 96 HF2 Date time ofthird to last HF event MSYF C __ J 97 Hid HACCP alarm
69. asts less than the time dn established the algorithm will proportionally add according to the value assigned to parameter dH the time remaining from the previous defrost to the following defrost interval dI see paragraph 6 5 2 In addition to this the algorithm will skip using the skip defrost principle see paragraph 6 5 3 the next defrost defrosts depending on the value reached by the skip defrost counter from 1 to 3 6 8 Pump down and low pressure 6 8 1 Enabling the function The Pump Down function is activated by setting parameter c7 pump down duration to any value other than zero The Pump Down valve must be connected to the auxiliary output setting the relevant parameter H1 In addition one of the digital inputs A4 A5 must be set as a low pressure input 6 8 2 Pump down function When the Set Point is reached if the minimum compressor ON time c3 has elapsed the controller closes the Pump Down valve stopping the refrigerant gas on the compressor suction side Parameter c10 can be used to select Pump Down by pressure In this case once the Pump Down valve closes the compressor continues to operate until reaching the low pressure value or the time c7 When this time elapses the compressor is switched OFF irrespective of the status of the low pressure input and the Pd alarm Pump Down ended by timeout is disabled In this case the compressor autostart function in Pump Down i
70. ault r4 3 0 r5 Enable minimum and maximum temperature monitoring rt Effective interval for monitoring the maximum and minimum temperature rH Maximum temperature measured in the interval rt rL Minimum temperature measured in the interval rt All these parameters are used for recording the temperature These instruments can record the minimum and maximum temperature measured by the ambient probe in a period of up to 999 hours over 41 days To enable this function proceed as follows e set r5 i e select rt e press E to display for how many hours the minimum and maximum temperature have been recorded if the function has just been enabled rt 0 e to start recording the temperatures again press for more than 5 seconds when displaying the hours the message rES indicates that the value has been reset The instrument resets the number of hours and restarts the monitoring process e to display the maximum temperature measured by the probe read the value associated with rH e to display the minimum temperature measured by the probe read the value associated with TL Note after the maximum time of 999 hours the monitoring of the minimum and maximum temperature continues while the time value remains fixed at 999 Cod CAREL 030220141 preliminary version del 06 09 04 32 ir33 Warnings if the instrument is not connected to a UPS unit a temporary power failure will reset the values of
71. ays OFF The condenser high temperature threshold can be set with the Ac parameter and with a hysteresis used for activating the condenser high temperature alarm and for adjusting the condensation fans by parameter AE If the condenser temperature is gt Ac AE 2 the pre alarm is signalled and there is no modification to the status of the loads but the display simply shows message cht If in the pre alarm situation the condenser temperature falls to lt Ac the pre alarm ends and signal cht disappears If instead the condenser temperature is gt Ac AE the alarm delay timer is started this can be set using the parameter Acd If at the end of delay Acd the temperature is still above the threshold Ac AE the alarm CH is activated the message CHt is shown on the display and the compressor is stopped without observing the safety times cl c2 c3 Alarm CHt is manual Cod CAREL 7030220141 preliminary version del 06 09 04 26 ir33 reset If on the other hand the temperature returns below the threshold the timer 1s reset and the pre alarm status or normal operation resumes The auxiliary relays can be set as condenser fan outputs H1 which are activated if the condenser temperature is gt Ac and are deactivated if the condenser temperature is Ac AE In the event of a condenser probe error the pre alarm
72. ck is repeated and if the outcome is the same then the following two due defrosts are skipped and so on according to the criteria described above maximum 3 successive defrosts skipped If 3 consecutive defrosts are skipped and the actual defrosting time is still less than dn the cycle is terminated and the controller will skip one more defrost As soon as the defrost time exceeds dn of the time dP the next defrost will be performed and the function will start again The algorithm counts the defrosts to be skipped e if defrost finishes in less time than dn1 the counter of the defrost operations to be skipped is increased by 1 The current value of the counter indicates the defrost operations to be skipped e ifthe defrost ends normally the next defrost is performed as normal e when the counter reaches the value 3 three defrosts are skipped and then the counter is reset to 1 e when the instrument is switched on the defrost is performed the first 7 times without increasing the counter after which the counter can be updated from the eighth defrost on The following is a graphical description of the function Defrost dE lt dn dE lt dn dE lt dn time Skipped planned defrost Two skipped planned defrost Defrost Three skipped planned defrost dE lt dn i dE gt dn idE lt dn hml tempo Si salta lo sbrinamento dI dI dI dI dI l Wi Skipped planned defrost Regularly performed de
73. d This is useful to allow the evaporator to return to its operating temperature after defrosting thus avoiding forcing hot air into the refrigerated environment In the event of management by fan controller the time Fd does not need to be set as the controller starts the fans again when the evaporator reaches its operating temperature If the fan controller is active F0 0 when assigning to Fd a value other than zero the fans remain OFF for a time equal to the value of Fd irrespective of evaporator temperature Default Fd 1 1 minute post dripping stop F4 Condenser fan switch OFF temperature For selecting the temperature at which the condenser fans should be switched OFF If you set the auxiliary relay as the condenser fan output see parameter H1 this will enable adjustments according to the following diagram Condensation F4 10 2 temperature FANS OFF Firststartup At first power up of the compressor the fans are switched ON at F4 0 2 degrees to compensate for rapid temperature increases that are not easy to follow by the probe This Set point is activated F4 0 2 solely after the first compressor power up Then the adjustment is effected normally i e power up F4 F5 Power down F4 In the event of condenser probe errors the condenser fan output if selected is activated Important If no condensation probe is selected the condenser fan output if selected is disabled Default F
74. d as the serial address is not modifiable via the supervisor or is set mechanically In this case the program will signal that the desired functions cannot be performed 9 1 4 Phase 4 table generation When the network has been configured the following files are generated automatically e driver ini defining the communication parameters on a special screen e driver cct e ncf for PlantVisor e description of the network including the communication parameters Cod CAREL 7030220141 preliminary version del 06 09 04 60 10 Electrical specifications and connections 10 1 Electrical characteristics of ir33 Model Voltage Power E 230 V 10 15 50 60Hz 3VA 25mA max A 115 V 10 15 50 60Hz 6VA 50mA max H 115 230V V 10 1520 50 60Hz 6VA 50mA max 12 24V V 10 1520 50 60Hz 4VA 300mA max Power supply L Transformer TRADR4W012 315 mA slow blow fuse in the secondary 12 V 10 15 50 60Hz 4VA 300mA max 0 12 Vdc from 2 to 18Vdc Traco TRADR4W012 315 mA slow blow fuse in the secondary reinforced insulation from very low voltage parts 6mm in air 8mm on surface E A H 3750V insulation primary Insulation guaranteed by the insulation from relay outputs 3mm in air 4 mm on surface power supply 1 250V insulation i to be guaranteed externally with insula
75. d act by status Origin Priority Note Action Digital input Priority 1 higher ON OFF disabled from Supervisor According digital input level Priority 3 lower Variation in value from the supervisor IMPORTANT if there is more than one digital input selected as the ON Off function A4 and A5 6 the ON status will be activated when all the digital inputs are closed If event one contact is open the machine is changed over to OFF In OFF status the following are disabled e compressor adjustment pump down valve OFF and shut defrost cyclic and manual fan adjustment adjustment of fans at low relative humidity 1f enabled continuous cycle adjustment of condensation fans if enabled the alarms listed below low temperature LO alarm reset and monitoring initialised high temperature HI alarm reset and monitoring initialised immediate alarm from external contact IA alarm reset and monitoring initialised delayed alarm from external contact dA alarm reset and monitoring initialised defrost finished due to timeout Ed1 and Ed2 alarm reset Pump Down alarm finished due to maximum time Pd alarm reset low pressure from external contact LP alarm reset and monitoring initialised autostart in Pump Down AtS alarm reset and not displayed pre alarm condenser high temperature cht alarm reset and monitoring initialised condenser high temperature alarm Cht alarm reset and monit
76. d instrument is shown below However for more details consult the instructions contained in the packing of the optional interface IROPZDSP00 Opzione interfaccia display Display nieriace option Cod CAREL 7030220141 preliminary version del 06 09 04 16 6 Description of the software functions 6 1 Models The following is a summary of the functions relating to the various controller models Model S static units with defrost by stopping the compressor e Direct and Reverse cycle compressor control e defrost by stopping the compressor by either time or temperature e continuous cycle e temperature alarm monitoring Model Y static units with electric heater or hot gas defrost e Direct and Reverse cycle compressor control e electric heater or hot gas defrost by time or by temperature e continuous cycle e temperature alarm monitoring Model F ventilated units with electric heater or hot gas defrost versions 115 230Vac e Direct and Reverse cycle compressor control electric heater or hot gas defrost by time or by temperature evaporator fan control continuous cycle temperature alarm monitoring Model C model with 4 relays e Direct and Reverse cycle compressor control electric heater or hot gas defrost by time or by temperature evaporator fan control continuous cycle temperature alarm monitoring auxiliary output management Functions enabled according to model Function
77. d on 29 August 2003 at 19 45 and lasted 98 hours Default 0 Htd HACCP alarm delay Delay time in minutes that added to the time Ad determines the time interval after which the HA error is activated If set to 0 HACCP monitoring HA that HF is disabled Any alarms already saved will still be stored even when Htd 0 Default Htd 0 gt HACCP monitoring disabled 7 9 RTC and timed defrost management parameters We n em Los wr Defost imeband SYE c pf 99 td2 Defrosttimeband2 SYF C lt 100 td3 Defrosttimeband3 SYF C 101 td4 Defrosttimeband4 SYF C 102 tds Defrosttimeband5 SYF C 103 td6 Defrosttimeband SYF C lt 104 td7 Defrosttimeband7 SYF C 105 td8 Defrosttimeband8 SYF C 106 ton Light auxactivationtime band SYF C J 107 tof Lightaux disabling time band SYF C J 108 tc RTC date time setting MSYF C td1 td8 Defrost time band 1 8 These parameters can be used to set up to 8 defrost events linked to the system clock To display and set or modify one of the events al access one of the parameters between td1 and td8 and then press E you enter a submenu in which the or LV button can be used to display and set the day hour and minu
78. dP2 30 minutes d3 Defrost start delay This parameter determines the time that must elapse when the defrost 1s activated between the stopping of the compressor electric heater defrost or the starting of the compressor hot gas defrost and the activation of the defrost relays on the main and auxiliary evaporators The delay d3 is useful in the hot gas defrost to ensure a sufficient quantity of hot gas for the defrost before the activation of the cycle reversing valve in very special applications see paragraph Description of software functions Default d3 0 minutes d4 Defrost when the instrument is switched on Activates a defrost when the instrument is switched on Warning this request has priority over the activation of the compressor and the continuous cycle The possible values are d4 0 no defrost is performed when the instrument is switched on d4 1 a defrost is performed when the instrument is switched on Starting a defrost when the instrument is switched on may be useful in special situations Example frequent power drops occur in the system which cause the internal clock to be reset This clock calculates the interval between two defrosting operations restarting from zero 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
79. delivery mode adjustment can be effected on the weighted average of the 2 read values The formula used is probe average Virtual probe S1 100 P S2 P 100 where 1 ambient probe S2 probe 2 P value of the parameter 4 Virtual probe e 4 0 control is performed using the ambient probe This is the typical situation e 4 100 control is performed in reference to the values read by probe 2 e 4 50 the controller refers to a virtual probe calculated from the average between the ambient probe and probe 2 With values above 50 probe 2 has a greater weight in the calculation vice versa for values below 50 Note in the event of faults or if probe 2 is not enabled the instrument uses the ambient probe only If the fault is on the ambient probe the Control probe error is signalled Default 4 0 gt control on ambient probe 5 Select C or F Defines the measurement unit degrees Centigrade or degrees Fahrenheit shown on the display 5 0 to work in degrees Centigrade 5 1 to work in degrees Fahrenheit Default 5 0 gt operation in degrees centigrade 6 Decimal point Used to enable or disable the display of the temperature with resolution to the tenth of a degree between 20 and 20 NOTE the exclusion of the decimal point is active only with reference to the display of the reading on the main and remote displays the parameters are always set to the
80. digital input can be connected to an external alarm that requires immediate activation for example high pressure alarm or compressor thermal overload Specifically the alarm is detected when the contact opens normal operation with contact closed The activation of the alarm e shows the message on the display TA e activates the buzzer if enabled e activates the alarm relay if selected e involves the following actions on the actuators compressor operates depending on the values assigned to parameter A6 stop compressor from external alarm o fans continue to operate according to the fan parameters F When stopping the compressor the minimum ON time c3 is ignored When the alarm stops the defrost and the continuous cycle can be performed again and the compressor returns to normal operation Important warning remember that in order to ensure the safety of the unit in the event of serious alarms all the electromechanical safety devices required to guarantee correct operation must be fitted on the unit A4 2 Delayed external alarm The delayed external alarm is equivalent to the immediate external alarm A4 1 except that this alarm is signalled after the time AT from when it is detected 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 rathe
81. down and low pressure stes ep eni e iere re ei n e ERR tes eee e E PU Ea er irt 6 9 Continuous cycle esses 6 10 High condensing temperature alarm 6 11 HACCP Hazard Analysis and Critical Control Point 7 Description of the operating parametefS 0L0eeeeeeeeeseeesooesooeaooonoeonoennoennoooooeovoooooooooooooooooooeoooonooonooonooonoooooooovooooooooooooonooonooanoonnoonne 7 1 Temperature probe management parameters 7 2 Temperature control parameters det EAR ki e Re ee cie ee n en ben Do ia 7 3 Compressor management paramlelets ae reine tete eerte ete ko pad aa da eiii e ARP DR ERE erede tate et de pk dada bain ee aa dann 74 Defrost management parameters 7 5 Alarm management parameters ire 7 6 Evaporator fan management parameters 7 7 General configuration parameters 7 8 HACCP alarm management parameters 79 RTC and timed defrost management parameters 8 Tables falarms and signals H 8 1 Table of alarms and signals display buzzer and relay 8 2 Table of alarms and signals functions enabled disabled sees eene retten tentent tente tens 55 8 3 Fable ofoperatmp Darattieters cilena eerie tete tete beret iii 56 CEMS SUIMdD Dee 59 9 Semi automatic procedure for assigning ad
82. dresses in the CAREL network rie 59 10 Electrical specifications and connections 10 1 Electrical characteristics Of ir33 n 10 2 1r33 standard connections ttr ete kan Moose Ba a yd e tee t n NU B ee boo as eh oats uet red ir33 1 Introduction The ir33 series for refrigeration is a complete range of products made up of integrated electronic microprocessor controllers with LED display designed especially for the control of stand alone refrigeration units These controllers are especially suitable in applications that require high load switching power a considerable number of outputs functions and control with direct access from the keypad high front panel IP and at the same time a compact shape that significantly reduces the overall dimensions The irr33 range is easy to install and ensures optimisation of production times for the manufacturer in mass production Numerous models are available providing the best solution for each application at the most competitive price 1 1 Models available The controllers are available in the configuration with 1 2 3 and 4 outputs many of which have a 16 A relay for the refrigerator compressor and a power feeder with extended switching range 12 24 or 115 230 Vac The numerous versions ensure considerable flexibility and consequently the possibility to use the controllers in many different applications without the need to radically change the systems
83. e CAREL ISO 9001 certified design and production system and by the CE mark on the product Cod CAREL 7030220141 preliminary version del 06 09 04 4 ir33 2 User interface The 1133 user interface consists of a very powerful and attractive display and a keypad The display has 3 digits decimal point and icons It shows temperatures codes all parameter values and the main unit statuses The silicon keypad ensures ease of use and reliability and allows direct access to the HACCP light defrost and continuous cycle functions The display can be customised simply and economically by changing the removable frame 2 1 Display and icons COMPRESSOR ON when the compressor starts Flashes when the activation of the compressor is delayed by safety times 8 FAN ON when the fan starts Flashes when the activation of the fan is prevented due to external disabling or procedures in progress it DEFROST ON when the defrost is activated Flashes when the activation of the defrost is prevented due to external disabling or procedures in progress 3 AUX AUX ON when the auxiliary output 1 and or 2 selected as AUX is activated 3 ALARM ON following pre activation of the delayed external digital input alarm Flashes in the event of alarms during normal operation e g high low temperature or in the event of alarms from an immediate or delayed external digital input G CLOCK ON if at least one timed defrost has been set A
84. e door is opened with the light OFF e the compressor and evaporator fans are switched off to stop the fans only set parameter A4 9 e the light is switched on only in the models fitted with at least 1 auxiliary relay programmed as the Light output e the reading displayed and the A icon flash e the temperature alarms are disabled If the door remains open for longer than time d8 the controller restarts normal operation e compressor and fan ON if requested light ON the auxiliary relay is selected as the Light the reading flashes the buzzer and the alarm relay are activated the temperature alarms are enabled To stop the reading from flashing close the door When the door is closed the controller returns to normal operation switching off the light and enabling the temperature alarm after the delay time d8 The compressor is re started respecting any protection times selected see the c parameters Case 2 door opened with light ON Assuming 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 e the compressor the evaporator fans are switched off to stop the fans only set parameter A4 9 e the light is switched on only in the models fitted with an auxiliary relay programmed as the Light output e the reading displayed and the A icon flash e the temperature alarms are disabled When
85. e following functions are associated with the probes e ambient probe used to calculate the virtual control probe e product probe if necessary used for calculating the virtual control probe e defrost probe main or secondary evaporator e condenser probe used if necessary for condenser fans control Other functions that enhance the range of the refrigeration controllers include e Real Time Clock for management of real time defrosts Real Time Clock for HACCP alarms management serial interface optional for connection to the CAREL Supervision System interface optional for connection of a repeater display facility for printing alarm reports 6 2 Testing the display and keypad on start up When the controller is switched on a special procedure tests the display and the keypad Phase _ Display Keypad Display completely OFF per 2 seconds Press PRG for 2 seconds to set the default values EU NE In this phase the clock appears and Third Three lines for 2 seconds Du each button lights up a specific segment indicates the me e of the RTC 6 3 Switching the controller ON and OFF The unit can be switched ON OFF from a number of sources Supervisor and Digital input In this operating mode the display will be show the temperature selected for parameter tI alternating with the OFF message The digital input has priority and controls the ON OFF status by level The other sources have lower priority an
86. e new value is then used for all the functions relating to the set point e g relative high and low temperature alarms etc When r4 3 0 pre programmed value the set point is increased by 3 degrees from the value used when the curtain is open Contact closed curtain lowered If one of the auxiliary outputs is used to manage the light lowering the curtain automatically switches the light off while raising it switches the light on Note if more than one digital input is configured as a curtain switch the curtain open status occurs when at least one of the inputs is open A4 8 Low pressure switch input for pump down Set A4 8 to mange the low pressure switch The low pressure alarm EP is signalled when the pressure switch signals a low pressure situation with the pump down valve open and the compressor on if the pump down function is active or when the compressor is on The low pressure alarm signal is nonetheless delayed by the time in minutes set for parameter A7 This parameter together with parameters C7 C8 C9 and H1 allows management of the pump down algorithm Contact open low pressure Important If c7 0 pump down disabled the low pressure situation can still be detected Note if more than one digital input 1s configured as the low pressure switch input the low pressure alarm is activated when at least one of the inputs is open 44 9 Door switch with fan stop
87. ed Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled 8 3 Table of operating parameters M U Measurement unit Def Default value No Code Parameter MSYF M U Type Def Max Min Pw password MSYF C 22 200 0 1 n Measurement stability MSYF C 4 15 1 M YF C 2 3 0 10 A3 Configuration of probe 3 MSYF C 0 3 0 12 c1 13 c2 14 c3 Calibration of probe 1 Calibration of probe 2 Calibration of probe 3 MSYE CPF MSYE CPF MSYE CPF 0 0 20 20 0 0 20 20 0 0 20 20 aaaja 15 c4 Calibration of probe 4 MSYF C PF 0 0 20 20 16 St 17 rd 18 ri 19 r2 20 r3 21 r4 22 r5 23 rt 24 rH 25 L 27 cl Temperature set point Control delta Minimum permissible set point Maximum permissible set point Operating mode Automatic night time set point variation Enable temperature monitoring Temperature monitoring interval Maximum temperature read Minimum temperature read Minimum time between successive starts C F C F C F C F flag C F flag hours Ray B C F 0 0 2 0 20 50 60 200 0 2 3 0 20 0 1 r 26 c0 Comp and fan delay on start up SYF min 15 0 eli eliz ile Nz cilellelieli elise SYF min 15 ojojoj 28 c2 Minimum compressor OFF time SYF min 15 29 c3 Minimum compressor ON time aa SYF min 15 Q ojo 30 c4 Duty setting SYF min 100 31 cc Continuous cycle duration
88. egarding the addresses already assigned and their description and type Example Address Line Description Type of unit 1 1 Dairy IR32 5 1 Meat IRMPX 7 1 Frozen IR32 Any new controllers not present in the table will appear without description at the end of the scan The user can then add the description Example Address Line Description Type of unit 1 1 Dairy IR32 2 1 Dairy 3 PB 5 1 Meat IRMPX 7 1 Frozen IR32 9 1 2 Phase 2 semi automatic assignment of the addresses At this point the controllers to be included in the network must be added The program runs the automatic address assignment procedure sending the following command in the network lt STX gt lt padr gt lt gt lt padr_new gt lt ETX gt lt chkh gt lt chkl gt Where lt padr gt 0 so that the command is received by all the controllers This is performed only by the controller in address assignment status and when the command is received the unit e saves the new serial address sends the response packet to the PC displays the address received exits the address assignment procedure The command received from an instrument with lt padr gt lt gt 0 assigns the new value contained in padr new for the serial address The response to the PC is the same as the request for the software version lt gt lt STX gt lt padr gt lt V gt lt Peripheral ID Bios
89. elayed compressor using the H1 parameter Default cll 4 4 seconds delay 7 4 Defrost management parameters bs b mpeofdeiost ep SY me CO 5 50 50 1 5 6 Defrost priority over compressor protectors SYF fag i F 2 F 3 c 5 C o 25 C 20 HI Advanced deos s C 0 fal an Nominal defrost duration sr i MH Proportional factor variat of d SYF 50 100 Important warning for the set times to become immediately operational the instrument needs to be turned off and on again If this operation is not carried out timing resumes operation the next time it is used d0 Type of defrost Establishes for the instruments fitted with defrost relays the type of defrost d0 0 electric heater defrost by temperature d0 1 hot gas defrost by temperature d0 2 electric heater defrost by time Ed1 and Ed2 not displayed d0 3 hot gas defrost by time Ed1 and Ed not displayed Defrost can be effected for all models Cod CAREL 7030220141 preliminary version del 06 09 04 35 ir33 e by temperature using the defrost probe fitted on the evaporator In any case the defrost will be stopped after a maximum set safety time The alarms Ed1 and Ed2 end defrost due to maximum duration parameter A8 can be disabled e by time without the defrost probe Note model S does not have a defrost relay and consequently the defrost can on
90. enerated e dll evaporation temperature threshold The defrost is generated if the compressor has operated e fortime d10 e with an evaporator probe reading less than d11 If there are two evaporators two separate timers will be installed for each evaporator and the count of each timer will be activated whenever the compressor is ON and relevant evaporation probe is below threshold d11 The defrost will start when at least one of the two timers has expired that is when at least one of the evaporators has operated for the time d10 below the temperature threshold dll 6 7 2 Defrost at variable intervals To enable the controller for this operating mode set parameter d12 1 In this mode the control algorithm according to the duration of the previous defrost increases or decreases the defrost interval dI proportionally for the following defrosts The following parameters are associated with this function e dl interval between defrosts d12 enable the function dn nominal duration of the defrost in proportion to the set defrost timeout value expressed as a Yo dP1 and dP2 maximum defrost duration for evaporator 1 and 2 dH control proportional factor dn dn The algorithm calculates with the following formulae dnl 7000 l and dn2 1004 2 the nominal defrost times dn1 and dn2 in the case of the second evaporator obtained as percentages dn of dP1 and dP2 Therefore if a defrost lasts less than the set time dn the
91. equest is sent As in the description of parameter d5 a series of units can be connected to the same timer Important warning for versions operating on 12Vac and 12 24Vac 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 Setting a different value for d5 on each unit will avoid simultaneous defrosts t Key l tempo t impulse from the timer to start the defrost the minimum duration allowed is 0 5 sbrinamento seconds 7 pi dP 1 maximum defrost duration unit 1 AA l unit 1 d5 2 defrost delay from external contact for unit 2 this must be greater than dP 1 to avoid overlapping of defrosts d5 sbrinamento Similarly for d5 3 and dP 3 iy unita 2 Note if more than one digital input is configured to start the defrost the defrost is l started when at least one of the inputs closes d5 sbrinamento e p dP Mi lt gt unit 3 richiesta sbrinamento A4 5 Door switch with compressor and fan stop Cod CAREL 030220141 preliminary version del 06 09 04 4 ir33 Setting A4 5 manages the cold room door switch The behaviour of the door switch depends on whether the door is opened with the light OFF or light ON The need to differentiate the two operating modes is mainly designed for controlling display cases and cold rooms Case 1 door opened with light OFF If th
92. erature displayed by the repeater Example in the case of bottle coolers typically used in supermarkets when the doors are opened frequently due to the greater thermal inertia of the liquids compared to the air and the fact that the probe is positioned in the air and not directly on the products the instrument measures a temperature that is higher than effective temperature of the soft drinks thus displaying a quite unrealistic temperature Setting the parameter 3 to a value other than 0 any abrupt variations in temperature are filtered on the display showing a temperature trend that is closer to the actual trend of the product temperature The following table shows the possible values of 3 and the corresponding display delayed update values Tdel 0 Disabled 0 2 l0s 1 min 3 I5s mins 4a 20s 85min Ss 25s l06mim 6e 30s _7mn 8 505 22mi o OO SS min Cod CAREL 030220141 preliminary version del 06 09 04 29 ir33 4 Probe average virtual probe This parameter is used to choose whether to control the temperature based solely on the room probe reading or alternatively whether to refer to the weighted average of the room probe S1 and probe 2 S2 see the parameter A2 This parameter is useful in special applications Example if the ambient probe is put in suction mode and probe 2 in
93. ers EE eprom alarm operating parameters EF Note In the OFF status the defrost interval dI is always updated to maintain the regularity of the interval If a defrost interval expires during the OFF status this event 1s saved and when controller is switched back ON a defrost request is generated The controller switches from ON to OFF with the following sequence e compressor protection times are observed e the Pump Down procedure is performed if enabled e the defrost is forced OFF and will not resume when switched back ON e the continuous cycle is forced OFF and will not resume when switched back to ON The controller switches from OFF to ON with the following sequence e compressor protection times are observed e the defrost on start up if enabled is not performed as this in fact refers to power up e the compressor and fan delays on start up are not set 6 4 Aux management The auxiliary output can be controlled by a number of sources Key Supervisor Digital input and Time band Aux is switched on and off according to the following events Aux Action Key Pressing the key Supervisor Variation in value from the supervisor Digital input Change in the status of the contact opening closing Time band According to day hour minutes of switching ON OFF Therefore if the digital inputs are stable the aux output can always be activated and de activated from the keypad IMPORTANT
94. f ir33 models has an RS485 serial port for connection to supervisor or telemaintenance systems using a two wire plus shielded cable across a serial network Index of protection In the 1133 series the gasket inside the front panel and the material used to build the keypad guarantee IP65 protection class for the control on the front panel Installation The i133 series controllers are mounted using the screws at the front or alternatively using two quick fit side brackets with compact dimensions made from plastic In circuit testing The 1133 series controllers are made using the most advanced SMD technology All the controllers undergo IN CIRCUIT TESTING to check electrical operation of all components The tests are performed on 100 of the products NTC probe The 1133 series can manage two types of NTC probes see parameter P standard version 50T90 C NTCO HP or alternatively the model for high temperatures up to 150 C enhanced NTC 40T150 C Watch dog This feature prevents the microprocessor from losing control over the unit even in the presence of considerable electromagnetic disturbance In the event of abnormal operation the watchdog function re establishes the initial operating status Not all the competitors fit their products with this safety feature CNN compatibility The i133 series is compliant with EU standards on electromagnetic compatibility The quality and the safety of the ir33 series are ensured by th
95. face PRG MUTE If pressed formore than 5 seconds together with PRGAMUTE key it resets any active alarms with manual reset UP AUX If pressed for more than 5 seconds together with key UP AUX it activates deactivates continuous cycle operation aer If pressed for more than 5 DOWN DEF seconds it activates a manual SET Pressing this button for more defrost than 1 second together with the SET key it displays a sub menu used to reach the parameters relating to the HACCP alarms HA Han HF and HFn PRG MUTE If pressed for more than 5 seconds together with PRG MUTE accesses the menu for setting the type C parameters configuration DOWN DEF Pressing this button for more than 1 second together with key If pressed for more than 1 second DOWN DEF it displays a sub menu E SET displays and or enables setting used to reach the parameters relating to the Set point the HACCP alarms HA HAn HF and HFn UP AUX If pressed for more than 5 seconds together with key UP AUX it starts the report printing procedure if the controller is connected to the printer interface Cod CAREL 7030220141 preliminary version del 06 09 04 7 2 3 1 2 3 4 5 6 7 8 ir33 Procedure for displaying and deleting the HACCP alarms def If you press keys and E for more than one second the display will show the name of the first of the parameters of the HA and HF alarms Ai Scroll the menu with the a
96. frost This function should be used with the programming of the defrosts equally distributed over the day e g cyclical defrosts parameter dI This prevents skipping defrosts that would be the last before a long period programmed without defrosts for example when the clock is used to program the defrosting of the utility at night only 6 7 4 Defrost according to the duration of the previous defrost with skip defrost and variable dI combination of 1 and 2 To enable the controller for this operating mode set parameter d12 3 In this mode the controller performs the defrosts considering both the duration of the previous defrost and the possibility of skipping the defrost and the interval set using parameter dl e di interval between defrosts d12 enable the function dn nominal duration of the defrost in proportion to the set defrost timeout value expressed as a Yo dP1 and dP2 maximum defrost duration for evaporator 1 and 2 dH control proportional factor dn dn The algorithm calculates with the following formulae dn me and dn2 u the nominal defrost times dn1 and dn2 in the case of the second evaporator obtained as percentages dn of dP1 and dP2 The parameter dH is a proportional factor that amplifies or attenuates the variation of dl Cod CAREL 7030220141 preliminary version del 06 09 04 24 ir33 dn dE ji ot Pedra EGER cn rr Lcd dl 100 dP 50 Consequently in this operating mode if a defrost l
97. frosts thus avoiding power overloads In addition to avoid unwanted defrosts started by the clock inside the instrument set parameter dI 0 manual defrosts only started from the keypad by the RTC by the calculation of the compressor running time or by the Multifunction contact Important warning when connecting a series of units to the same timer the best solution is to insulate all the contacts galvanically fitting intermediate relays for each contact Default d5 0 gt no delayed defrost when switching the instrument on or following the activation of the multifunction input d6 Display during defrost Specified values e d6 0 gt during the defrost the instrument displays the text dEF alternating with the value read by the probe selected using parameter tI This is to signal that any high temperature values are due to the defrost procedure in progress e d6 1 gt during the defrost the last temperature shown before the start of the cycle remains on the display The display returns to normal when the control temperature reaches the set point the temperature to be displayed 1s less than the value locked on the display or in any case after the time set for the alarm bypass after defrosting d8 e d6 2 gt during the defrost the instrument displays the text dEF steady on the display Note in OFF and REVERSE modes the display is unlocked after the defrost Default d
98. function see parameter c9 with the pump down valve closed on the high pressure request from the pressure switch When the Pd alarm is signalled the compressor remains OFF until the controller requires cooling When reaching the set point a pump down procedure is run and the alarm is automatically reset 1f the low pressure is reached within the time c7 Low pressure is monitored by connecting the low pressure switch to one of the two digital inputs and setting the parameter A4 A4 or A5 If pump down by time is selected c10 0 When the compressor operating time c7 is reached after the opening of the valve the compressor is stopped irrespective of the low pressure reading The Pd alarm is deactivated In any case the compressor is stopped when reaching the low pressure In this case autostart in pump down is disabled Default c7 0 gt Pump down disabled Cod CAREL 7030220141 preliminary version del 06 09 04 34 ir33 c8 Compressor start delay after opening of PD valve This parameter determines after how many seconds from the opening of the pump down valve the compressor starts and is useful to avoid activating the LP alarm unnecessarily The low pressure alarm LP with valve open and compressor ON is activated by the opening of the pressure switch This alarm entails disabling the compressor and resets automatically The parameter is active if c7 0 Default
99. g report activation of low relative humidity procedure activation of high relative humidity procedure wb Signal sar continuous cycle request E Signa Jed continaous cycle request Da signi sandfosreqet use fendoetvostregee ON Sign w amp heoN S For Signa o iSite to S reset alarms with manual reset TES Signal reset HACCP alarms reset temperature monitoring The buzzer sounds if enabled by parameter H4 The alarm relay is activated if auxiliary output 1 H1 has been assigned the alarm relay function normally closed or normally open Note the buzzer is disabled by the CAREL Supervisory System 8 2 Table of alarms and signals functions enabled disabled The following table highlights the functions that are enabled and disabled in the various alarm situations cycle D a D Duty setting c4 Duty setting c4 Disabled Disabled Disabled Duty setting c4 Duty setting c4 Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled Disabled LrH Disabled Disabled Disabled Disabled Disabled HrH Disabled Disabled Disabled Disabled Disabled Disabled o EF Disabled Disabled Disabled
100. he instruments allows in this phase only the desired instrument to be programmed using the remote control without the risk of interference The instrument enabled for programming from the remote control will display the reading and the rCt message This status is called Level 0 When you have entered the remote control programming mode if you press PRG for 5 seconds this enables you to exit remote control programming saving the modifications press EXIT to exit remote control programming without saving modifications Cod CAREL 7030220141 preliminary version del 06 09 04 14 ir33 Remote simulation of the instrument keypad The highlighted part is used to simulate the instrument keypad from the remote control In Level 0 display the reading and rCt message the following functions are active Key Function def Start and stop defrosting aux Activation and deactivation of auxiliary relay light Activation and deactivation of auxiliary relay 2 ON OFF Instrument ON OFF PRG mute Mute the buzzer if ON and deactivate the alarm relay In Level 0 the SET and PRG mute buttons are also active these are used to set the Set point Level 1 and the configuration parameters Level 2 Key Immediate function Delayed function pressing and holding for 5s ends use of the remote control saving the modified parameters used to access modification of parameter PRG m
101. ime is set c3 Minimum compressor ON time richiesta inserimento f 7 71 jy C ON Sets the minimum running time for the compressor The compressor 1s insertion request ARR A glacie OFF not stopped until it has been ON for at least the minimum time selected i ON e3 compressore compressor Lb OFF Default c3 0 gt no minimum running time is set c4 Duty setting or relay safety device If the virtual control probe fault alarm occurs see parameter 4 this parameter is used to ensure the operation of the compressor while elimination of the fault is awaited Important In the event of errors on probe 2 the virtual probe corresponds to the ambient probe probe 1 and consequently the Duty Setting is not activated Cod CAREL 7030220141 preliminary version del 06 09 04 33 ir33 In practice 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 an operating time ON time equal to the value assigned to parameter c4 in minutes and a fixed OFF time of 15 minutes ON time value c4 OFF time 15 minutes fixed There are two values of c4 causing special behaviour c4 0 in the event of faults involving the virtual control probe the compressor is always OFF c4 100 the compressor is always ON that is the 15 minute OFF time is always ignored Special situations e If the virtual control probe err
102. indicate respectively the continuous cycle start and end FL Pressing this button for more than 1 second together with key relating to the HACCP alarms HA HAn HF and HFn displays a sub menu used to reach the parameters Important when the buttons are pressed a brief audible signal 1s emitted this signal cannot be disabled Icon Button Normal operation Start u Automatic address O Pressing the button alone Pressing together with other buttons P assignment request If pressed for more than 5 SET If pressed for more than 5 seconds accesses the menu for seconds together with SET accesses If pressed for more setting the type F parameters the menu for setting the type C than 5 seconds on If pressed for more than PRG PRG MUTE frequent parameters configuration start up it activates 1 second enters the mute the RESET automatic address Mutes the audible alarm UP AUX If pressed for more than 5 d assignment procedure buzzer and deactivates the seconds together with UP CC resets PO alarm relay any active alarms with manual reset DOWN DEF If pressed for more than 5 seconds together with key DOWN DEF it activates deactivates continuous cycle operation SET If pressed for more than 5 If pressed for more than 1 second seconds together with the SET key it UP AUX it activates deactivates the starts the report printing procedure if Ci auxiliary output the controller is connected to the printer inter
103. ing parameter r3 A4 11 Light sensor The digital input is used to read a light sensor actually an analogue input from which a digital signal is taken using the parameter or threshold of the light sensor The light sensor may be located e inthe door stop e inside the cold room or cabinet In the first case the sensor signals the opening and the closing of the door because with the door open light is signalled and with the door closed dark 1s signalled the sensor is located in the door stop and thus will be shadowed when the door is closed The inside light will be automatically switched on when the door is open and switched off when the door is closed The light stays OFF for a minimum time of 5s to avoid rapid successive impulses of the light relay To select this operating mode set AF 0 In the second case the light sensor signals the opening of the door of the cold room or the cabinet due to the outside light that the sensor detects thus activating the internal light The closing of the door is measured by time as the light inside the cold room or cabinet will illuminate the sensor After time AF greater than 0 the inside light is switched off for 5 seconds If the light sensor signals darkness the door must be closed and the light will therefore remain OFF Otherwise the door stays open and the light is re lighted To select this operating mode set AF gt 0 A4 12 Activation of the AUX output The digital input is
104. is always ON e The low temperature alarm is deactivated e The icon amp is on steady If during the continuous cycle the door is opened and one of the digital inputs is set to manage the opening of the door the compressor stops and consequently the continuous cycle is temporarily interrupted When the door closes the continuous cycle starts from where it left off and thus in practice the continuous cycle duration timer cc is put on hold when the door is opened and starts again when the door closes 6 9 5 End of the continuous cycle The continuous cycle ends in the following ways push button LJ pressed for more than 5 seconds minimum specified temperature AL reached maximum duration of the continuous cycle cc reached instrument switched off OFF from the keypad or supervisor changeover from Direct or Indirect operating mode with defrost to Reverse cycle mode heating by parameter 13 or the digital input A4 A5 The low temperature alarm is bypassed for a time c6 from the end of the continuous cycle 6 10 High condensing temperature alarm If a probe is set as a condenser probe A2 A3 A4 A5 the condensing temperature can be monitored and a high temperature condition signalled probably due to situations of fouling and obstruction If no condenser probe is selected the condenser pre alarm and alarm are disabled The condenser fan output if selected is alw
105. lay MSYF min C 0 250 0 bd Ds 4 0 1a Perou time band 2 AEFT Days 0 Minutes sica Defrost time band 3 SYF aida Dos 5 Dy time band 4 SYF NER D 5 Minutes ee Defrost time band 5 SYF TO Dai 5 Perou time band 6 SYF TET Ds E E ea time band 7 SYF ubi Days i Detrost time band 8 SYF Tut Dass 4 Minus uobis 5 0 Light aux activation time band SYF 0 Ora 0 o Minutes uus 0 5 0 E Light aux disabling time band Day x A ki ki eI ki ki Ol ki eI eI ki IC eojojoj 1 oi oeioi o o o 11 o o o ojo o 11 o o o 1 o oio a se 23 0 0 0 0 Minutes EER Min 0 sa o ioi oe e elo Cod CAREL 7030220141 preliminary version del 06 09 04 58 ir33 9 Supervision The controller supports the CAREL standard serial protocol 9 1 Semi automatic procedure for assigning addresses in the CAREL network The semi automatic procedure for assigning the addresses in the CAREL network is performed using a program running on a PC that manages the various phases 9 1 1 Phase 1 acquisition of network status Starting off from a pre installed network the network status must be acquired The program on the PC will scan the CAREL network interrogating all the possible addresses and recording those that are physically present The program also refers to the network description table saved at the end of the previous installation and then recovered r
106. ll the instruments including this feature connected to the CAREL network The procedure is very simple 1 Using the remote application start the Network definition procedure the application begins to send a special message ee the network containing the network address G 2 Pressing the button on the keypad of the instrument connected to the network the instrument recognises the message sent by the remote application automatically setting the address to the required value and sending a confirmation message to the application containing the unit code and firmware revision message V When the message sent by the remote application is recognised the instrument displays the message Add for 1 second followed by the value of the assigned serial address 3 The application on receiving the confirmation message from the units connected to the network saves the information received in its database increases the serial address and resumes sending the message lt ADR gt 4 At this point the procedure starting from point 2 can be repeated on another unit connected to the network until all network addresses are defined Note When the operation for assigning an address to an instrument has finished for reasons of safety the operation is inhibited for 1 minute on that instrument Consequently a different address cannot be re assigned to the instrument during that time Cod CAREL 030220141 preliminary version del 06 0
107. ly be performed by stopping the compressor and selecting end of defrost by time or temperature If the alarms Ed1 and Ed are not disabled when activated they can be cancelled by pressing 3 and led together for more than 5 seconds or automatically at the start of the next defrost operation Default d0 0 electric heater defrost by temperature dI Interval between defrosts The defrosts are performed cyclically at an interval equal to the value of dI in hours or minutes see parameter dC counted at end of previous period The duration of the defrost therefore does not therefore affect the interval between defrosts The interval is also maintained when the unit is OFF If the interval dl expires when the controller is OFF when it is started again a defrost 1s performed If dI 0 gt the defrost is never performed except when forced from the keypad manual defrost from the supervisor or from the digital input see parameter A4 or from the Real Time Clock Attention To ensure regular defrosts the interval between defrosts must be greater than the maximum defrost duration plus the dripping time and post dripping time Note during the defrost temperature alarms are disabled Default dl 8 hours dtl SET POINT temperature at end of evaporator defrost This parameter 1s used to set the end defrost temperature measured on the evaporator In any case the maximum defrost duration is
108. maximum value read by the two probes to ensure that the fans are started when both evaporators reach the set temperature e intheevent of errors on the control probes the fans are always on Default F1 5 gt as shown in the figure the fans remain ON while the evaporator is 5 degrees colder than the room temperature Cod CAREL 7030220141 preliminary version del 06 09 04 47 ir33 F2 Fans OFF with compressor OFF according to the value of F0 This enables you to decide if the fans must operate according to the contents of parameter FO with the exception of the defrost cycle parameters F3 dd and Fd are displayed or when the compressor is active e F2 0 gt the fans are always ON F0 0 or when requested by the fan controller F0 1 2 even when the compressor is OFF e F2 1 gt the fans are OFF when the compressor is OFF Default F2 1 fans OFF with compressor OFF F3 Fans in defrost This is used to decide if the fans should operate or not during the defrosts F3 0 gt the fans operate during defrosts F3 1 gt the fans do not operate during defrosts Remember that during the dripping time and post dripping time if specified the fans are always OFF Default F3 1 gt evaporator fans OFF during the defrost Fd Fans OFF for post dripping The fans after defrosting can be stopped for a further period beyond dd in minutes defined by the value of F
109. mistor temperature probes NTC have no polarity so the order of connection of the ends is not important CLEANING THE INSTRUMENT When cleaning the instrument do not use ethanol hydrocarbons petrol ammonia and by products Use neutral detergents and water Cod CAREL 7030220141 preliminary version del 06 09 04 9 ir33 4 Programming the instruments The parameters can be modified using the front keypad The operating parameters are divided into two families frequent use parameters type F and configuration parameters type C Access to the configuration parameters is protected by a password that prevents unwanted modifications or access by unauthorised persons 4 1 How to access type F parameters PRG Press led for more than 5 seconds if an alarm is active the buzzer is muted first of all the display shows the code of the first modifiable type F parameter 4 2 How to access type C parameters 1 2 3 4 PRG Press 3 and E together for more than 5 seconds the display will show the number 00 aj ser Press or LY until displaying the number 22 the code of the password allows access to the parameters Confirm by pressing LJ The display shows the code of the first modifiable type C parameter 4 3 Modifying parameters After having displayed the parameter either type C or type F proceed as follows Fig 1 and 2 1 2 3 4 5 6 7 8
110. n alarm mode can be set to operate either with the relay energised or de energised The latter operation mode ensures maximum safety because the alarm is also activated in the event of power failures or disconnection of the cables HI 1 Alarm output usually non energised The relay is energised when an alarm occurs H1 2 Auxiliary output The connected actuator can be switched ON OFF using the Ed button Switching the actuator ON OFF is signalled by the AUX icon on the display H1 3 Light output The light on the unit can be switched on off when the door is opened if the door switch is enabled see parameter A4 If the door switch is enabled the light is switched off when the door is closed unless previously switched on from the keypad Switching the light on off is signalled by the icon on the display H1 4 Auxiliary evaporator defrost output A heater or reversing valve can be controlled to perform an electric heater defrost or hot gas defrost on the auxiliary evaporator H1 5 Pump Down valve output The activation and the deactivation of the pump down valve can be controlled H1 6 Condenser fan output If the high condenser temperature alarm is activated see Ac the output can be used to control the condenser fans H1 7 Delayed compressor output The output is activated a few seconds after the compressor starts the delay is established by parameter c11 deactivation of the compressor output correspond
111. n a series of 1133 controllers in the same room without problems of interference In fact each controller is identified by a different access code Duty setting This function ensures the operation of the compressor even when the control probe room probe is faulty If the probe is disconnected or short circuited the compressor is activated at set intervals with a running time in minutes equal to the value assigned to the duty setting parameter parameter C4 and a fixed OFF time of 15 minutes Smart defrost All i133 series controllers can as standard manage the defrost functions in new modes see the paragraph on smart defrosts Multifunction input All the ir33 series instruments have two digital inputs that can be used in different modes depending on the value set for the digital input configuration parameters parameters A4 and A5 These inputs can be used to enable disable the defrost to manage serious alarms that require the immediate shut down of the unit e g high pressure or delayed shut down of the unit e g low pressure or alternatively can be configured to read NTC probes Multifunction output According to model the ir33 family can be provided with an additional multi function output for remote control of the alarm signal for controlling additional units through ON OFF activation Cod CAREL 7030220141 preliminary version del 06 09 04 3 ir33 Rtc The wide range also includes models fitted with built in
112. n press E Use the ton parameter to set activation time and the toF parameter to disable it Cod CAREL 030220141 preliminary version del 06 09 04 52 ir33 A Press E to enter a submenu in which the or LV button can be used to display and set the day hour and minutes of the defrost ON or OFF event For example to set ON from Monday to Saturday at 8 30 hours and OFF from Monday to Saturday at 19 30 hours ton d09 V ns V m30 LY toF d09 V n19 V m30 LY A E To modify the day hour or minutes of the event access the desired parameter by pressing the or V button and then press to modify the value A When pressing E the letter identifying the parameter disappears and the value can no longer be increased or decreased using or def Adi The parameter d sets the day of the event as follows d_ 0 gt event disabled d__ 1 7 gt Monday Sunday d_ 8 gt from Monday to Friday d_ 9 gt from Monday to Saturday d _ 10 gt Saturday and Sunday d_ 11 gt all days When h 0 23 m__ 0 59 this sets the hour and minutes of the event Default d _ 0 h__ 0 m__ 0 gt Event disabled Pressing E temporarily saves the changes to the parameter and returns to the submenu for setting the event The display or modification of the parameters corresponding to the revent can be continued or you can return to the list of
113. nd V keys the display shows the names of the various parameters relating to the HA and HF alarms When you have reached the desired parameter press E to display the value aer If the selected parameter is HA or HF use keys and to scroll the year month day hour minutes and duration of the last HA or HF alarm that was activated e g y03 LY mo7 LY a22 UV n23 UV m57 UV 199 V and restart The sequence indicates that the last HA or HF alarm was activated on 22 July 2003 at 23 57 and lasted 99 hours Press again to return to the list of the parameters relating to the HA and HF alarms The following operations are possible from inside the menu a delete the HACCP alarm by pressing v and key for more than 5 seconds the message rES indicates that the alarm has been deleted the flashing of the HACCP LED is reset the HA and or HF signal is also reset and the monitoring of HA is reinitialised b delete the HACCP alarms and the saved alarms HAn HA HAI HA2 HFn HF HF1 HF2 by pressing V and for more than 5 seconds the message rES indicates that the alarms have been deleted the HACCP LED stops flashing the HA and or HF signal is reset the alarms saved HAn HA HAI HA2 HFn HF HFI HF2 are reset and the monitoring of HA is reinitialised PRG Normal operation can be resumed at any time by pressing ES for 3 seconds or waiting for the expiry of the session due
114. of two evaporators the defrost ends when both the evaporators have reached the end defrost condition If one evaporator finishes the defrost by time or by temperature before the other the corresponding defrost relay is de energised while the compressor remains in the status required by the defrost The defrost is ended early in the following situations e changeover from Direct operating mode with defrost to Reverse cycle mode heating by parameter r3 or the digital input A4 A5 e end of enabling signal from external digital contact the defrost request remains pending e instrument switched OFF from the keypad supervisor and digital input e end defrost from supervisor and keypad If the defrost is completed early the dripping and post dripping with the fans OFF phases are not performed as if the times were 0 Special case if the controller is running a hot gas defrost and a low pressure alarm occurs the compressor will stop due to the low pressure alarm and the defrost will probably end by timeout At the end of the defrost the compressor is stopped hot gas and Pump Down is run if enabled if a dripping time is set dd the fans are stopped if a dripping time dd or fans off for post dripping Fd is set the defrost relay is disabled the alarm bypass time after defrost is set d8 any pending defrost requests are reset If the dripping time is set to zero the compressor remains in the previous status
115. ondenser temperature alarm differential This is the differential used for activation of the high condenser temperature alarm and controlvof the condenser fans Default AE 5 0 Acd Condenser high temperature alarm delay The parameter Acd can be used toyset a delay on the activation of the condenser high temperature alarm When the threshold Ac AE is exceeded the alarm delay timer is started If when the delay time Acd has elapsed the temperature is still above the threshold the alarm CHt is activated Otherwise if the temperature returns below the threshold the timer is reset and the alarm CHt is not displayed Default Acd 0 gt 0 minutes AF Light sensor OFF time Used to manage the light sensor connected to a digital input as AF 0 sensor in the door stop AF gt 0 sensor inside the cold room or cabinet When AF 0 the inside light is switched on when the sensor detects light and is switched off when the sensor detects darkness The light is switched off for a minimum of 3 seconds so as to avoid close successive impulses of the light relay Note the sensor must be positioned so as to detect darkness when the door is closed When AF gt 0 the inside light is switched on when the sensor detects light After a time in seconds equal to AF the light is switched off for 5 seconds to check if the door has been closed If darkness is detected the inside light remains OFF
116. or occurs while the compressor is OFF it remains OFF for 15 minutes and is then started respecting the times set for parameters cl and c2 and remains ON for a time equal to c4 It then starts duty setting operation This special operation is signalled by the LED that flashes during the compressor OFF period and remains on steady when the compressor is operating The fans continue to operate according the set parameters see F parameters If the duty setting requires the immediate shut down of the compressor for a non specified time c4 0 this is done without observing the compressor protection times e Ifthe virtual control probe error occurs while the compressor is ON it remains ON for the time c4 and then is stopped without observing the minimum ON time if set for parameter c3 and remains OFF for 15 minutes the LED flashes in this phase After this periodic operation starts with an operating time equal to the value of c4 Warning If the probe error disappears the unit returns to normal operation C4 ON compressore Ere ms compressor 1 LL OFF OFF 15 min Default c4 0 gt compressor always Off in the event of a virtual control probe error c5 Continuous cycle duration This is the time in hours during which the compressor operates continuously to lower the temperature even below the set point With cc 0 gt the continuous cycle is disabled
117. oring initialised alarm door open for too long door alarm reset HA type HACCP alarm alarm reset and monitoring initialised HF type HACCP alarm alarm reset and monitoring initialised Cod CAREL 7030220141 preliminary version del 06 09 04 18 ir33 buzzer OFF and alarm relay non alarm status HACCP control defrost requests generated according to programmed time bands defrost requests generated according to compressor if enabled running time defrost requests generated from digital input if enabled defrost requests generated from keypad and supervisor defrost enabled from digital input 1f enabled Direct Reverse from digital input 1f enabled While the following are enabled e modification and display of frequent and configuration parameters and the Set Point ON OFF of auxiliary relay 1 set as LIGHT or AUX selection of the probe displayed model M only compressor autostart in Pump Down if enabled door switch with fan and compressor shutdown limited to light management remote ON OFF curtain switch limited to light management door switch with fan shutdown only limited to light management management of the light sensor updating of the defrost interval timer dl the alarms listed below control probe rE error probe 1 error E0 probe 2 error E1 probe 3 error E2 probe 4 error E3 probe 5 error E4 clock alarm Etc eprom alarm unit paramet
118. pressor is always OFF A6 100 the compressor is always ON The fans continue to be managed according to the set parameters see category F If duty setting for the probe alarm parameter c4 is also active the controller uses the value of A6 Default A6 0 gt compressor OFE in the event of external alarms AT Delay in detecting the external alarm Multifunction input Establishes the delay in minutes in detecting an external alarm if selected as a delayed external alarm A4 A5 2 or the signal of the low pressure LP alarm if selected as a pressure switch input for low pressure A4 A5 8 Default A7 0 AS Enable signals Ed1 and Ed2 The alarms Edl and Ed signal the end of the defrost due to maximum duration of the defrost time These can however be disabled by setting A8 0 PRG The alarms Ed and Ed2 if enabled are cancelled at the start of the following defrost or can be reset manually by pressing the and buttons for more than 5 seconds Default A8 0 gt alarms Edl and Ed disabled Ado Configuration of the third multifunction digital input This parameter is used to select the algorithm for managing the door Ado Light on opening the door Algorithm Description 0 off normal opening closing on extended opening closing opening closing 1 off extended opening closing opening closing on normal opening closing
119. r error in the temperature range 50 ppm 27 min year Clock 10 60 C dx ageing lt 5 ppm 22 7 min year Discharge time 6 months typical 8 months maximum Recharge time 5 hours typical 8 hours maximum Operating temperature 10T60 C Operating humidity 9095 RH non condensing Storage temperature 20T70 C the insulating parts Storage humidity lt 90 RH non condensing Front panel index of protection panel installation with IP65 gasket Environmental pollution Normal PTI of the insulating materials gt 250V Period of electric stress across Long Category of resistance to fire category D UL 94 V0 Class of protection against voltage surges category 1 Type of action and disconnection lc relay contacts micro disconnection Classification according to protection against electric shock to be integrated in Class I and II devices Cod CAREL 030220141 preliminary version del 06 09 04 62 ir33 Software class and structure Class A Cleaning of instrument front panel only use neutral detergents and water Serial interface for CAREL network External available on all models Interface for repeater display External available on models with H and 0 power supply Maximum distance between interface and display 10 mt Programming key Available on all model
120. r than the malfunctioning of the unit Setting a delay for the alarm 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 more than one digital input is configured as an immediate or delayed alarm the alarm 1s generated when at least one of the inputs is open A4 3 The meaning varies according to the model used Cod CAREL 7030220141 preliminary version del 06 09 04 40 ir33 Version ir33M probe selection This is used to exploit the digital input in order to show on the display the probe selected by parameter tI or the first enabled probe see parameters A2 A3 A4 A5 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 Default A4 3 digital input for probe selection Note if more than one digital input is configured as a probe selection the probe selected by parameter Atl is displayed when at least one of the inputs is open For all other models Defrost enabling An external contact can be connected to the multifunction input to enable or inhibit the defrost e Contact open o the defrost is inhibited e Contact closed o the defrost is enabled e Contact closed without request from the controller o the defrost is not performed e Contact closed
121. s 10 2 ir33 standard connections The following are the connections for the assembly of 1133 according to model ir33 Connections 230 Vac or 115 Vac transformer version Panel mounting IP65 Rel 1 EN60730 1 8 4A 250V UL 873 8A 2FLA 12LRA Panel mounting IP65 Cod CAREL 030220141 preliminary version del 06 09 04 IR33M EN 0 IR33M ER 0 IR33M EC 0 IR33M EB 0 IR33M AN 0 IR33M AR 0 IR33M AC 0 IR33M AB 0 IR33M EA 0 IR33M EM 0 IR33M EL 0 IR33M ET 0 IR33M AA 0 IR33M AM 0 IR33M AL 0 IR33M AT 0 Power supply IR E 230V 25mA max IR A 115V 50mA max Power supply IR E 230V 25mA max IR A 115V 50mA max 63 Serial and Key Serial Serial interface interface To Carel Network To Carel Network ir33 Rel 1 EN60730 1 8 4 A 250V UL 873 8A 2FLA 12LRA Panel mounting IP65 EN60730 1 250V UL 873 Rel 1 8 4 A 8A 2FLA 12LRA ompressor IR33S EN 0 IR33S ER 0 IR33S EC 0 IR33S EB 0 IR33S AN 0 IR33S AR 0 IR33S AC 0 IR33S AB 0 Rel 2 8 4 A 8A 2FLA 12LRA Maximum total current on terminal 1 12A Panel mounting IP65 EN60730 1 250V UL 873 Maximum total current on terminal 1 12A Rel 1 8 4 A 8A 2FLA 12LRA Panel mounting IP65 Serial interface To Carel Network Probe 1 Probe 2 Power supply IR E 230V 25mA max IR A 115V 50mA max
122. s deleting the oldest event The new alarm can be displayed using the parameter that identifies the most recent alarm that is HA or HF The counter of the HAn or HFn alarm events is increased up to a maximum value of 15 Note the HF alarm is acquired and the corresponding data saved only if the power failure lasts more than 1 minute Cod CAREL 030220141 preliminary version del 06 09 04 28 ir33 7 Description of the operating parameters 7 1 Temperature probe management parameters 2 Measurement stabitiy msye 5 Probe display slow down MSYF 4 Wirtwal probe e Type D EC C OM 5 Select C or F flag amp Deimapom MSYF me I Display onintemalterminal MSYE AE Display on extemal terminal MSYF MSY MSY MSY MSY F fee EE F A cad LIN EE i ree ERE E cr F_ CPF _C 3 Calibration of probe 3 MSYE eer C 15 cA Calibration of probe 4 MSYF C F C 0 0 20 20 MSYF A4 Configuration ofprobe4 MSYF fel MSYF 2 MSYF men n 3 4 16 tI tE P A3 A4 cl c2 c3 2 Measurement stability Defines the coefficient used to stabilise the temperature reading Low values assigned to this parameter allow a prompt response of the sensor to temperature variations but the reading becomes more sensitive to disturbance High values slow down the response but guarantee greater immunity to
123. s minutes and for short durations seconds Default dC 0 gt dI expressed in hours dP1 and dP in minutes d10 Compressor running time This parameter indicates the compressor operating time in hours with the temperature below the threshold indicated by the parameter d11 after which a defrost request is generated Setting d10 0 disables the function Default d10 0 gt Function disabled d11 Running time temperature threshold This parameter indicates the evaporation temperature below which the compressor must continue to operate for the time d10 in order to generate a defrost request Default d11 1 gt 1 C d12 Advanced auto adapting defrosts This parameter is used to enable and disable the advanced defrost function as per the following table Skip Defrost Automatic variation of dI 0 Disabled Disabled Disabled Enabled Enabled Disabled Enabled Enabled Default d12 0 gt Both the functions are disabled dn Nominal defrost duration This indicates the average duration of the defrost in normal operating conditions It is expressed as a percentage with reference to parameters dP1 and dP2 according to the following formulas dnl dn gpl 100 dn2 A 100 Example with dn 65 dP1 90 min and dP2 120 min Nominal defrost duration on main evaporator 59 min Nominal defrost duration on auxiliary evaporator 78 min Default
124. s disabled Note if the shut down request occurs when the compressor is off and the valve open since following the opening of the valve the compressor has not yet started again the routine closes the valve and if necessary starts the Pump Down procedure if not in low pressure if autostart and Pump Down by pressure is enabled When the controller requests the activation of the compressor if the minimum OFF time eX and the minimum time between two starts of the compressor cl have elapsed the pump down valve is opened allowing the refrigerant gas to return to the compressor intake The compressor is started after the delay time c8 from the opening of the valve Note if the start request occurs when the compressor is ON and the valve OFF as it is in Pump Down or autostart mode the valve is opened immediately 6 8 5 Compressor autostart in Pump Down Parameter c9 is used to enable the compressor autostart function in pump down status Once the compressor has been stopped in pump down due to low pressure if the low pressure switch signals an increase in pressure due to the faulty seal of the pump down valve the compressor is started again until it reaches the low pressure value The compressor autostart function considers the minimum OFF time c2 and the time between two starts cl while minimum ON time is ignored Consequently when reaching the low pressure value the compressor is stopped even if time c2
125. s to immediate deactivation of the delayed compressor If this operating mode is set it is also active during the compressor pump down and autostart phases if selected with the appropriate parameters H1 8 Auxiliary output with deactivation when OFF In the off status the auxiliary output cannot be activated When starting again the auxiliary output returns to the previous status H1 9 Light output with deactivation when OFF In the off status the light cannot be activated When starting again the light returns to the previous status H1 10 No function associated with the output In this case the logical output AUXI is not used for any function Summary H1 0 Alarm output normally energised H1 0 Alarm output normally de energised H1 2 Auxiliary output H1 3 Light output H1 4 Auxiliary evaporator defrost output H1 5 Pump Down valve output H1 6 Condenser fan output H1 7 Delayed compressor output H1 8 Auxiliary output with deactivation set to OFF H1 9 Auxiliary output with deactivation set to OFF H1 10 No function associated with the output Warning the mode H1 0 is useful also for signalling power failures with an alarm Default H1 1 gt relay energised with alarm active Available on all models supplied with Relay 4 H2 Disable keypad and or remote control Parameter H2 can be used to inhibit some functions relating to the use of the keypad for example the modification of the parame
126. t delay at start up d5 Defrost delay from digital input configured as defrost start or enable d5 Enable defrost A4 A5 A9 Immediate alarm from external digital input A4 A5 A9 because it delays compressor activation Immediate alarm of time 7A from external digital input A4 A5 A9 because it delays compressor activation High condenser temperature alarm only with hot gas defrost because it delays compressor activation Opening of the door only with hot gas defrost if the compressor is subject to the door management algorithm Cod CAREL 7030220141 preliminary version del 06 09 04 20 ir33 6 6 3 Starting the defrost The defrost is performed by electric heater or hot gas according to the value of parameter do If defrost by temperature has been selected the defrost is performed only if the evaporator probe reading is less than the end defrost temperatures dP1 and dP2 or if there is a probe error This is also true in the case of two evaporators In the electric heater defrost e the compressor stops Pump Down is run if enabled e the time d3 elapses e the defrost relay relating to the main evaporator is activated to turn the heaters on e the defrost relay for the auxiliary evaporator is activated to turn the heaters on In hot gas defrost e the compressor starts e the time d3 elapses e the defrost relay for the main evaporator is activated to open the hot gas valve e the defrost relay for the auxili
127. t start up comes ON for a few seconds to indicate that the Real Time Clock is present 3 LIGHT ON when auxiliary output 1 selected as LIGHT is activated 5 A SERVICE Flashes in the event of malfunctions for example E7PROM errors or probe faults p p SPLAY shows temperature in range 50 and 150 C with tenths resolution in range 19 9 and 19 9 C Display of tenths can be disabled by programming a parameter HACCP ON if the HACCP function is enabled Flashes when there are new HACCP alarms stored HA and or HF alarm shown on the display CONTINUOUS CYCLE ON when the CONTINUOUS CYCLE function is activated Flashes if the activation of the function is prevented due to external disabling or procedures in progress e g minimum compressor OFF time Cod CAREL 7030220141 preliminary version del 06 09 04 5 ir33 ICON FUNCTION Normal operation Start up ON OFF FLASHING e COMPRESSOR Compressor ON Compressor OFF Compressor request YA FAN Fan ON Fan OFF Fan request He DEFROST Defrost active Defrost not active Defrost request A a AUX auxiliary AUX AUX AUX auxiliary output active output not active Alarms in norm operation e g High low A ALARM Dee ca alarm Before No alarm present temperature or alarm from external digital the expiry of the time A7 A input immediate or delayed Ifat least 1 timed defrost has No timed defrost has ON if Real time GO CLOCK
128. te and time are set to Saturday 6 01 01 00 at 00 00 hours To cancel the EtC error simply set the clock using the appropriate parameters Note If the EtC error appears and the system is then switched off on re start the EtC will no longer be present being corrected by the previous start up 8 Tables of alarms and signals 8 1 Table of alarms and signals display buzzer and relay The following table describes the alarms and signals on the controller with their description the status of the buzzer the alarm relay and the reset mode Tomo Alarm H Buzzer Reset Description apenn CT mam mr E RION Fry mssmgem onem RITE D esito Wy probe sti ooo Pee A tashing DI Dom DI of automati probe SS fault U UUO Ne ot off automatic probe notenabled oo p o oo LLL e defrost on evaporator 1 ended by timeout peso No ot oe atoms est on evaporar ended by meo _ po BS A flashing Erra maximum pump e time alarm A o flashing automatic manual autostart in pump down Fen en Far w oot automatic manual high condenser temperature pre alarm enr S naa mani enn on cem LU O MELI ___ _ _ ee i Jpn G eee HACCP lam A HACCP alarm HF Cod CAREL 030220141 preliminary version del 06 09 04 54 3 instrument enabled for programming from the remote ann dici automatic address assignment procedure n progress printin
129. terface Rel 2 Rel 1 Remote display L j Aejdsiq ajowey oL Power supply 115 230V 50mA max IR33Y HN 0 IR33Y HR 0 IR33Y HC 0 IR33Y HB 0 Cod CAREL 030220141 preliminary version del 06 09 04 66 To Carel Network ir33 Rel 1 Rel 2 Rel 3 EN60730 1 12 2 A 8 4A 8 4A 250V UL 873 12A5FLA 8A2FLA 8A2FLA 30LRA 12LRA 12LRA Maximum total current on terminal 3 12A Rel 1 R Panel mounting IP65 IR33Y HA 0 IR33Y HM 0 IR33Y HL 0 IR33Y HT 0 Rel 1 Rel 2 Rel 3 EN60730 1 12 2 A 8 4A 8 4A UL 873 12A5FLA 8A2FLA 8A2FLA 30LRA 12LRA 12LRA Maximum total current on terminal 3 12A Panel mounting IP65 Compressor IR33F HN O IR33F HR 0 IR33F HC 0 IR33F HB 0 Rel 1 Rel 2 Rel 3 Rel 4 EN60730 1 12 0A 8 4A S8 4 A 8 4 A 12A5FLA 8A2FLA 8A2FLA 8A2FLA 30LRA 12LRA 12LRA 12LRA Maximum total current on terminal 3 12A UL 873 Rel 3 Rel 1 Panel mounting IP65 IR33C HN O IR33C HR 0 IR33C HC 0 IR33C HB 0 Cod CAREL 030220141 preliminary version del 06 09 04 67 To Carel Network interface Serial o ele 2 g Remote o display I 8 9 Lj koi m lt Power supply 115 230V 50mA max To Carel Network n I EN St 25 E o Rel 2 7 3 2 9 o Ei E a lt Power supply 115 230V 50mA max To Carel Network Serial interface Rel 4 Rel 2
130. ters and the set point 1f the unit is accessible by the public The following are available Keypad functions Parameter H2 1 0 0 0 1 2 3 4 5 6 HACCP PRG MUTE mute UPAUX tl Jo e DOWN DEF defrot J je Je Io SET modification of type F parameters e e jeje Cod CAREL 7030220141 preliminary version del 06 09 04 49 ir33 Modification ofthe setpoint amp amp Modification fromtheremotecontrol When the set point modification and parameter modification functions inhibited neither the set point nor the type F parameters can be changed while their values can still be displayed The type C parameters on the other hand being password protected can also be modified from the keypad following the procedure described previously With the remote control disabled only the values of the parameters can be displayed but they cannot be modified in addition the mute defrost continuous cycle aux auxiliary 1 light auxiliary 2 and on off functions are disabled Warnings If H2 2 or H2 3 is set on the remote control the control is immediately disabled To re enable the remote control set H2 0 or H2 1 on the keypad Default H2 1 gt all enabled H3 Enabling code for programming from the remote control Parameter H3 assigns an access code to the remote control As already described this allows the remote control to be used
131. tes of the defrost event In the IR ls day 8 B the Monday to Friday hours 23 minutes 57 d08 v o v ssim vi A A To modify the day hour or minutes of the event access the desired parameter by pressing the or LV button and then press to modify the value the letter identifying the parameter disappears and at this point the value can be increased or decreased using or with push buttons The parameter d sets the day of the event as follows d_ 0 gt event disabled d_ 1 7 gt Monday Sunday d _ 8 gt from Monday to Friday d _ 9 gt from Monday to Saturday d 7 10 gt Saturday to Sunday d _ 11 gt all days When h 0 23 m__ 0 59 this sets the hour and minutes of the event Default d 0 h__ 0 m__ 0 gt Event disabled SET Pressing di temporarily saves the changes to the modified parameter and returns to the submenu for setting the event The display or modification of the parameters corresponding to the event can be continued or you can return to the list of RTC G parameters by pressing lus ton and tof Light aux activation disabling time band With these parameters you can set activation and or disabling of the light or aux connected to the system clock for aux or light selection see parameter H8 To display set or modify one of the two events access one of the two parameterstwo ton 0 or toF parameters and the
132. the door 1s closed the first time the controller maintains the previous situation When the door is closed the second time the controller returns to normal operation switching off the light and enabling the temperature alarm after the delay time d8 The compressor is re started respecting any protection times selected see the c parameters If after opening the door remains open for a time longer than d8 the controller returns to normal operation e compressor and fan ON if requested light OFF the reading flashes the buzzer and the alarm relay are activated the temperature alarms are enabled 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 if the light is switched off manually the controller restarts normal operation e compressor and fan ON if requested e light OFF e the temperature alarms are enabled Pee Note If the light was previously switched on manually when the door is closed for the second time it is automatically switched off Warning even when the fan is managed by the fan controller see the family of 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 Note if more than one digital input is configured as the door switch the door open status occurs when at least one of
133. tion from very low voltage parts safety transformer 0 L reinforced insulation from relay outputs 6mm in air 8mm on surface 3750V insulation SI NTC or PTC depending on the model S2 NTC or PTC depending on the model DII voltage free contact contact resistance 10 ohm 3 closing current 6 mA NTC or PTC depending on the model Inu DD voltage free contact contact resistance 10 ohm p S4 closing current 6 mA NTC or PTC depending on the model Maximum probe and digital input distance less than 10m Note the power supply and load connections should be kept separate from the probe digital input repeater display and supervisor cables 10kQ at 25 C range from 50T90 C Std CAREL PTC M 1 C in the range 50T50 C 3 Cin the range 50T90 C 50kQ at 25 C range 40T150 C 1 5 C in the range 20T115 C Probe pe High DATE NTC measurement error 4 C in external range 20T115 C 985 Q at 0 C range 50T150 C Std Carel specific model Riese 2 C in range 50T50 C 4 C in the range 50T150 C Relay outputs depending on the model EN60730 1 UL 873 250V epee current at 250V operanng cycles cycles 5A 5 A res IFLA 6LRA slim 5 1 A 100000 C300 30000 5 A res FLA 6LRA SA S DA 100000 C300 30000 8 4 on N O 8A 6 4 on N C 100000 e c 30000 2 2 on N O and N C Cod CAREL 7030220141 preliminary version del 06 09 04 61 ir33 16A 10 4 A up to 60 C on N O 12 A res
134. to TIMEOUT 60 seconds without pressing any key 2 4 AUX key A Key is always assigned to auxiliary logic output 1 Furthermore different functions can be assigned to auxiliary logic function 1 H1 The default setting of auxiliary output 1 is associated with the AUX function According to the assigned function the corresponding icon is activated on the display Physical output Key Function Icon auxiliary 1 AUX AUX default AUX A Consequently a situation could arise where by assigning different functions pressing the key switches on the lamp icon Logical output Key Function Icon auxiliary 1 AUX LIGHT LAMP Available functions H1 0 Alarm output normally energised The relay is de energised when an alarm occurs H1 0 Alarm output normally de energised The relay is energised when an alarm occurs H1 2 Auxiliary output H1 3 Light output H1 4 Auxiliary evaporator defrost output H1 5 Pump Down valve output H1 6 Condenser fan output H1 7 Delayed compressor output H1 8 Auxiliary output with deactivation set to OFF H1 9 Auxiliary output with deactivation set to OFF H1 10 No function associated with the output Cod CAREL 030220141 preliminary version del 06 09 04 8 ir33 3 Installation To install the controller proceed as follows with reference to the connection diagrams shown at the end of the manual 1 connect the probes and power supply
135. ts per hour may not necessarily be respected Warning if the defrost requires the activation of the compressor hot gas defrost and parameter d9 1 the compressor may risk being damaged due to an excessive number of close starts Default d9 0 gt the defrost respects the compressor times however by default these are set to zero d 1 Defrost probe 1 reading This parameter is used to display the value measured by defrost probe 1 in the instruments where this is fitted When you have selected parameter d 1 pressing the a key displays the temperature measured by defrost probe 1 If defrost probe 1 is disabled three horizontal dashes will be displayed Cod CAREL 030220141 preliminary version del 06 09 04 37 ir33 d 2 Defrost probe 2 reading It operates identically to the parameter d 1 described above but refers to defrost probe 2 dC Time base Used to modify the measurement unit used to count the times set for parameters dI defrost interval dP1 and dP2 defrost duration dC 0 gt dI expressed in hours dP1 and dP in minutes dC 1 dl expressed in hours dP1 and dP in minutes The parameter dC 1 can be used to test defrost operation at shorter times In addition it is useful for using the instrument to manage air driers The defrost cycle then becomes the condensate discharge cycle which must be performed at close interval
136. um temperature reached after the activation of the alarm duration of the alarm HA Alarm Maximum temperature record Temperature AH nasello ai PIE time Htd Ad ES alarm duration HF this occurs after a power failure for an extended time 71 minute if when power returns the temperature is higher than the threshold set for the parameter AH the absolute value of AH if A1 0 the relative value given by AH St if A1 1 The following data are saved hour minutes and day of the week type of alarm maximum temperature reached after the activation of the alarm duration of the power failure Cod CAREL 7030220141 preliminary version del 06 09 04 27 ir33 HF Alarme Power Fail set point St time The activation of one or both of the alarms causes the LED to flash and the display of the alarm code as well as the recording of the alarm to the E PROM and the activation of the alarm relay or buzzer if present def Pressing E and for more than 5 seconds resets the flashing of the LED the HA and or HF signal and reinitialises the monitoring of HA Pressing amp 3 mutes the buzzer and resets the alarm relay if present The date and time of the last 3 alarms HA and HF can be displayed by using 6 parameters HA HA1 HA2 and HF HF1 HF2 The activation of a new HA or HF alarm causes scrolling of the list of the last 3 alarm
137. used to activate deactivate the AUX output if configured with parameters H1 with the following logic Digital input AUX output Opening deactivation Closing activation The output is activated deactivated on closing opening the contact tormake this operating mode compatible with the presence of the AUX button and the control signal from the supervisor Note if more than one digital input is configured to activate the AUX output the open status is true when at least one of the inputs is open The table below summarises the functions of the digital input corresponding to the value assigned to the variable A4 Value of Ad 0 input not active ee immediate external alarm Contact open alarm active 2 delayed external alarm Contact open alarm active Delay see parameter A7 Enable defrosts Contact closed Defrosts enabled defrosts 5 door switch with compressor and fan stop Contact open door open III WTA DO A ERES AS o6 econtllrisOn win bot he consts eased If A4 6 and A5 6 the controller is On with both the contacts closed curtain switch Contact closed Curtain lowered Ifthe input is selected as a curtain switch the controller modifies the set point when the contact closes adding the value of parameter r4 io 8 low pressure switch input for pump down Contact open gt low pressure door switch with fan stop only Contact open door open When
138. ute configuration mode SET used to access Set point modification In Levels 1 and Level 2 the PRG mute SET UP and DOWN keys repeat the corresponding functions on the instrument keypad In this way all the instrument parameters can be displayed and modified even those without shortcut keys Keys for direct display of the most commonly used parameters Some parameters relating to e Temperature Defrost Alarms Fans HACCP are directly accessible using specific keys E i s Bo o H 3 gt E 4 5 3 RS485 serial interface board The RS485 serial card option IROPZ48500 shown in the figure below allows connecting the ir33 instrument to the RS485 serial network for supervision of the measured values and modification of the internal operating parameters The connection diagram between the interface and the instrument is shown below For further details refer to the instruction sheet enclosed in the packaging of the interface option IROPZ48500 Intaraccia scheda seriale RS485 Serial board interface RS485 Cod CAREL 030220141 preliminary version del 06 09 04 15 ir33 S 4 Repeater display interface option The repeater display interface option IROPZDSPO0 shown in the figure below allows the ir33 to interface with a repeater display IR00RG0000 to show the temperature measured by the third probe The connections lay out between interface an
139. when there is more than one controller present on the same panel without the risk of interference For further details see the paragraph on the use of the remote control Default H3 00 gt programming from the remote control without code H4 Disable buzzer This parameter can have two values H4 0 buzzer enabled H4 1 buzzer disabled Default H4 0 gt buzzer enabled Available on all models H6 Lock keypad This is used to disable the functions assigned to the individual buttons Using the corresponding bits the functions relating to the individual buttons on the keypad can be enabled setting to 1 or disabled setting to 0 according to the following relationships IMPORTANT the functions disabled using parameter H6 are added to those disabled using parameter H2 e ir33 Keypad Total value of parameter H6 3 2 1 o os a 2 oo ae _ Prg mute button Bo TASTIERA STANDARD TASTO SET TASTO DOWNIDEF TASTO UP AUX NENNEN i TASTO PRGAMUTE To calculate the value to be assigned to parameter H6 simply sum the values assigned to the functions that should be disabled Example enable SET button and Aux button 1 32 34 Parameter H6 Bit Mask Key Functions that can be enabled disabled 0 0x01 E Enter HACCP Report printing procedure Defrost 1 0x02 Continuous cycle Enter HACCP 2 0x04 Enable disable auxili

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