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Refrigeration

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IR33 Platform – Index

• Cool room application with IR33 13• Medium temperature standard application with condenser probe (12/24V) 14• Medium temperature standard application with condenser probe (240V) 15• Heating only application 16• Freezer room application with IR33 17• Low temperature standard application with real time defrost initiation 18• Low temperature 2 compressor (defrost by temp. termination) 19• Low temperature 2 evaporator sensors (defrost by temp. termination) 20• Low temperature with pump down by LP switch 21• Low temperature standard application with condenser probe 22• Standard application cool and heat (with optional set point change) 23

IR33 controller applications:

MD33 controller applications:

• Cool room application with MasterCella2 24• Freezer room application with MasterCella2 25• Low temperature freezer room with real time defrost initiation 26• Low temperature with condenser fan control (defrost by temp. termination) 27• Low temperature 2 compressor (defrost by temp. termination) 28• Low temperature 2 evaporator sensors (defrost by temp. termination) 29• Low temp. 2 compressors and 2 evaporator sensors (temp. termination) 30• Low temperature freezer room with external strobe siren (temp. termination) 31

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Features and benefits 6

IR33 Platform – Technical tips 7

Communication with IR33 Platform 8

IR33 Platform - Programming 9

IR33 Platform - Parameters 10

IR33 Platform – Alarm and Display descriptions 32

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Compact Infrared Remote

Programming key(controller does not require

power) - ALL MODELS!

New Mounting Bracket

Features and Benefits

• Based on IR32 parameters.

• Real Time Clock ( RTC ) – Model Specific (defrost based on real time – 7 day 24 hour).

• HACCP (Hazard Analysis and Critical Control Point) alarm available on models with Real Time Clock (RTC).

• Models with RTC can switch the aux output on and off based on a time program.

• Digital inputs can be programmed to be sensors.

• Condenser temperature alarm (option to control condenser fan with Aux relay).

• 2nd Evaporator control (second evaporator sensor and defrost relay output option).

• Pump down management (solenoid valve (aux) output and LP switch input).

• Block level access for programming to simplify the movement between parameters.

• 240V low temperature model.

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IR33 Platform – Technical tips

• It is important to note that when saving parameter changes that the “PRG” key must now be pressed for approx 5 seconds (until the temperature comes onto the display).

• The temperature alarm can now be programmed to be relative or absolute. Default is relative (A1=0) meaning if AH=+5 then the high alarm is Set point + 5 deg C. If A1=1 and AH=+5 then no matter what the set point I, the high alarm point is +5 deg C.

• For IR33C with only one sensor (no evaporator sensor), the alarm E1 (faulty evap sensor) is disabled by setting /A2 = 0 (probe 2 not present). Parameter d0 does not disable this alarm. In the case of no defrost sensor, d0 has to be set to 2 or 3 (electric or hot gas by time).

•IR33S / DN33S / MD33A are defaulted to enable “off cycle” defrost. To make the controller cooling only r3 must be equal to 1 (H1 is now not used for this purpose). If you want to heat instead of cool you can set r3 = 2.

• Any of the sensors can be programmed to be continually shown on the controllers LED display. If the temperature shown is not correct check that parameter “/tI”=1 or 2. Other options are 3=Probe 2, 4=Probe 3 etc.

• Real time defrost and HACCP functions are only available in models with Real Time Clock. Models without RTC will not permit the associated parameters to be adjusted.

• On the “cheat sheet” we have highlighted in bold the main parameters that need adjusting for basic operation.

• To do a factory reset (! All the configuration will be back to the factory settings and the controller might need to be reconfigured!), turn the power off, press and hold the PRG button while turning the power back on and release the button when “Std” is displayed.

• Below is the wiring of the compressor output with an external switching relay RLY2402HP. A & B represent the 2 terminals where you have to wire you compressor output. The outputs are not the same depending on the controller you are using.

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PlantVisorPRO is a monitoring and telemaintenance system and is designed for medium – large size installations. Its features are: centralisation of the information from the field devices, monitoring of variables, management of alarms (can send fax, SMS or emails), display of detailed and complete graphs, and a lot of other functions settable according to your installation.

PlantWatchPRO is a PC-free logging and alarm solution ideal for small –medium size installations. It features a large colour touch screen, can record variables and manage alarms.

For the connection of the RS485 network, we recommend the use of the Belden 8760 cable (1 pair, 18AWG screened cable with drain wire).

Please note:

To supervisory system

IR331…

IR33n…

120Ω

• The maximum cable distance is 1000 m.• Always separate RS485 and sensors from power cables.• RS485 is polarity conscious (+ on +, – on – and GND on GND).

To connect the controller to a supervisory system you will need to fit a serial card:

• IROPZSEM30: serial card for MD33 wall mount controller.• IROPZSER30: serial card for DN33 din rail mount controller.• IROPZ48500: serial card for IR33 panel mount controller.

Communication with IR33 Platform

Note: The pre-configuration of PlantWatchPRO and PlantVisorPRO is available. Please contact us for more information.

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IR33 Platform – Programming

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040C--SCProbe 5 configuration (eg 0=absent,2=evap,3=cond)Pro/A5

4.0200-50F°C/°F-SCEnd defrost temperature, 2nd evaporator (if selected)dEFdt2

4.0200-50F°C/°F-SCEnd defrost temperature, (if d0 = 0 or 1)dEFdt1

82500Fhours-SCInterval between defrosts (if not using real time)dEFdI

2 = elec / time term, 3 = hot gas / time term 4 = pulse)

040Cflag-SCDefrost type (0= elec / temp term, 1= H.Gas / temp term dEFd0

42500Cs-SCSecond compressor start delayCnPc11

010Cflag-SCSelect Pump-Down by time or pressure switchCnPc10

010Cflag-SCEnable autostart with Pump Down operationCnPc9

5600Csec-SCCompressor start delay after opening Pump Down valveCnPc8

09000Csec-SCMaximum Pump-Down (PD) timeCnPc7

2150Chours-SCAlarm bypass after continuous cycleCnPc6

0150Chours-SCDuration of continuous cycle (manual activation)CnPcc

01000Cmin-SCDuty setting (in case of control probe failure)CnPc4

0150Cmin-SCMinimum compressor ON timeCnPc3

0150Cmin-SCMinimum compressor OFF timeCnPc2

0150Cmin-SCMinimum time between 2 compressor startsCnPc1

0150Cmin-SCCompressor and fan start delay at power upCnPc0

---F°C/°FMSCMin temperature recorded during period rt (display only)CtlrL

---F°C/°FMSCMax temperature recorded during period rt (display only)CtlrH

-9990FhoursMSCTemperature monitoring interval (display only parameter)Ctlrt

010CflagMSCEnable temperature monitoring (1 = yes)Ctlr5

3.020-20C°C/°FMSCValue to increase Set Point by from Digital Input (see A4..)Ctlr4

020Cflag-SCMode 0 = cool with defrost, 1 = cool only, 2 = heatingCtlr3

60200r1C°C/°FMSCMaximum Set Point allowedCtlr2

-50r2-50C°C/°FMSCMinimum Set Point allowedCtlr1

2200.1C°C/°F-SCReverse (heat) diff in dead zone controlCtlrr

4600C°C/°F-SCDead Zone (when used in 1 Heat 1 Cool mode)Ctlrn

2.0200.1F°C/°F-SCController differentialCtlrd

0.0r2r1F°C/°FMSCTemperature set point CtlSt

0.020-20C°C/°FMSCCalibration of probe 2-3-4-5 / c2=probe 2, / c3=probe 3Pro/c2-5

0.020-20C°C/°FMSCCalibration of probe 1Pro/c1

040C-MSCProbe 4 configuration (eg 0=absent,2=evap,3=cond)Pro/A4

040C-MSCProbe 3 configuration (eg 0 = absent 2=evap,3=cond)Pro/A3

040C--S--

240C-MSCProbe 2 configuration (eg 2=evap,3=cond, 4=low T cut out)Pro/A2

020C-MSCType of probe (0=standard Carel NTC, 1=High Temp NTC)Pro/P

060C-MSCSensor shown on remote displayPro/tE

171C-MSCSensor displayed on controller (1 or 2 = Control sensor)Pro/tI

010CflagMSCDecimal point (0 = decimal point between -19.9 & +19.9)Pro/6

010CflagMSCSelect °C or °F (0 = °C )Pro/5

01000C-MSCVirtual probe (averaging on room & evap) 0 = not activePro/4

0150C-MSCProbe display speedPro/3

4151C-MSCMeasurement stabilityPro/2

NewDef.Max.Min.TypeUnitModelParameterBlockCode

IR33 Platform – Parameters

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1150Fmin---CFans delay after drippingFanFd

0140C--SCConfiguration of digital input 3ALnA9

02500Chours-SCAlarm delay after door open - from dig indEFd8d

302501Fmin-SCMaximum defrost durationdEFdP1

12070C-MSCSerial addressCnFH0

5.0200.1C°C/°FMSCCondenser fan differentialFanF5

40.0200-50C°C/°FMSCCondenser fan off temperature (on aux relay if enabled)FanF4

110Cflag---CFans in defrost (0 = on, 1 = off)FanF3

110Cflag---CFans cycle with comp (0 = no, 1 = yes)FanF2

5.0200-50F°C/°F---CFan start temperature FanF1

1 = room - evap, 2 = evap temp (F1 – A0)

020Cflag---CFan management (0=according to F2,F3,FdFanF0

1150CminMSCAntifreeze alarm delayALnAdF

-5200-50C°C/°FMSCAntifreeze alarm set pointALnALF

02500Cs-SCLight sensor off timeALnAF

02500Cmin-SCHigh condenser temp. alarm delayALnAcd

10.0200.1C°C/°F-SCHigh condenser temp. alarm differentialALnAE

70.02000.0C°C/°F-SCHigh condenser temperature alarm set pointALnAc

010CflagMSCDoor switch light management modeALnAdo

010Cflag-SCEnable alarms ‘Ed1’ and ‘Ed2’ (defrost end on time)ALnA8

02500Cmin-SCExternal alarm delay if using digital inputALnA7

01000Cmin-SCDuty setting for comp from digital in alarmALnA6

0140C-MSCConfiguration of digital input 2ALnA5

0140C--SCConfiguration of digital input 1ALnA4

1202500FminMSCLow and high temperature alarm delayALnAd

0.0200-50F°C/°FMSCHigh alarm temp (see A1 for absol. or relative)ALnAH

0.0200-50F°C/°FMSCLow alarm temp (see A1 for absol. or relative)ALnAL

010CflagMSCType of alarm for AL and AH (0=relative 1=absolute)ALnA1

2.0200.1C°C/°FMSCAlarm and fan differential ALnA0

501000C--SCProportional factor for variation in ‘dI’ (smart DF)dEFdH

651001C--SCNominal defrost duration (smart defrost)dEFdn

030C--SCAdvanced defrost enabledEFd12

1.020-20C°C/°F-SCCompressor run time temp set for demand defrostdEFd11

02500Chours-SCCompressor run time for demand defrostdEFd10

010Cflag-SCTime basis for defrost (0 = hr/min, 1 = min/sec)dEFdC

---F°C/°FMSCDisplay defrost probe temp d/1=def P1,d/2=def P2)dEFd/1/d/2

010Cflag-SCDefrost priority over compressor protectiondEFd9

1150Fhours-SCBypass alarms after defrostdEFd8

2150Fmin-SCDripping time after defrostdEFdd

120C--SCDisplay during def.(0=dF (flash),1=locked,2=dEF)dEFd6

02500Cmin-SCDefrost delay at power up (if d4=1)dEFd5

010Cflag-SCDefrost at power up (0 = no, 1 = yes)dEFd4

02500Cmin-SCDelay starting defrost after stopping compdEFd3

302501Fmin-SCMaximum defrost duration, 2nd evap (if selected)dEFdP2

NewDef.Max.Min.TypeUnitModelParameterBlockCode

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1130CflagMSCFunction of relay 4 (0,1=alarm,2=aux,3=light,6=cond fan)CnFH1

160CflagMSCKeypad and IR lockingCnFH2

02550C-MSCRemote control enabling codeCnFH3

0130CflagMSCFunction of relay 5 – Model specific (refer H1)CnFH5

05900min****Minutertcn__

02300hours****Hourrtch__

6716days****Day of the weekrtcu__

13111days****Day of the monthrtcd__

11211months****MonthrtcM__

009900years****Yearsrtcy__

---C-MSCRTC date/time settingrtctc

0590*min****Minutertcn__

0230*hours****Hourrtch__

0110*days****Dayrtcd__

---C--SCLight/aux OFF time settingrtctof

0590*min****Minutertcn__

0230*hours****Hourrtch__

0110*days****Dayrtcd__

---C--SCLight/aux ON time settingrtcton

0590*min****Minutertcn__

0230*hours****Hourrtch__

0110*days****Dayrtcd__

---C--SCDefrost time band 1/8rtctd1-td8

02500CminMSCHACCP alarm delayHcPHtd

-990*hours****DurationHcPt__

-590*min****MinuteHcPn__

-230*hours****HourHcPh__

-71*days****DayHcPd__

-121*months****MonthHcPM__

-990*years****YearHcPy__

---C-MSCDate/time of most recent HA/HFHcPHA/HF

-150C-MSCNumber of events HA/HF occurredHcPHAn/HFn

060CflagMSCStandard control or master or slave CnFIn

010CflagMSCEnable alarms on network devicesCnFHsA

010CflagMSCEnable remote ind. of aux statusCnFHrA

010CflagMSCEnable remote ind. of light statusCnFHrL

0200-50C°C/°FMSCAnti-sweat heater control offsetCnFHdh

060CflagMSCNumber of default parameter setsCnFHdn

010CflagMSCEnable set point change with timeCnFH9

0150C-MSCPrint profileCnFHPr

010CflagMSCSelect output to activate with time bandCnFH8

02550C-MSCButtons to lock when keypad lockedCnFH6

010CflagMSCDisable buzzer (0=enabled, 1 = disabled)CnFH4

NewDef.Max.Min.TypeUnitModelParameterBlockCode

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End manual defrostdFE

Start manual defrostdFb

End continuous cycleccE

Start continuous cycleccb

Controller in defrostdEF

AutoOffOffHACCP alarm "HF"HF

AutoOffOffHACCP alarm "HA"HA

AutoOffOffEPROM error (operating parameters)EF

AutoOffOffEPROM error (unit parameters)EE

AutoOffOffReal time clock faultEtc

AutoOnOnDoor open alarm dor

ManualOnOnHigh condenser temp alarmCHT

Auto/ManOffHigh condenser temp pre alarmcht

Auto/ManOnOnAutostart in pump downAtS

Auto/ManOnOnLow pressure alarmLP

Auto/ManOnOnMaximum pump down timePd

Auto/ManOffDefrost on evap 2 ended by timeEd2

Auto/ManOffDefrost on evap 1 ended by timeEd1

AutoOnOnDigital input alarm (delayed)dA

AutoOnOnDigital input alarm (immediate)IA

AutoOnOnHigh temp alarmHI

AutoOnOnLow temp alarmLO

AutoOffProbe not enabled"___"

AutoOffOffProbe 4 faultE3

AutoOffOffProbe 3 faultE2

AutoOffOffProbe 2 faultE1

AutoOffOffProbe 1 faultE0

AutoOnOnControl probe faultrE

ResetBuzzerAlarm RelayDescriptionCode

IR33_Handout v2.4 31/08/08

IR33 Platform – Alarm and Display descriptions