dixell Ichill 260L_D DUO User Manual Download Page 63

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1592015820 User manual IC260_261L_D DUO FW1.9 rel. 1.0

Pag. 63 of 149

26. COMPRESSORS WITH DIFFERENT CAPACITY

The function is enabled if:



one circuit unit



at least 2 compressor are configured



the capacity of the compressors is not 0 and different for each one

Parameters involved:

CF87

Compressor 1 capacity

100%

CF88

Compressor 2 capacity

100%

CF89

Compressor 3 capacity

100%

CF90

Compressor 4 capacity

100%

CF91

Compressor 5 capacity

100%

CF92

Compressor 6 capacity

100%

CF93

Maximum number of start up of the compressor in 15 minutes
0= Not enabled

Example:

circuit with 2 compressors:



step 1: the first compressor to be activated is the compressor with lower weight



step 2: the compressor is switched off and is activated the compressor with higher weight



step 3: both compressors are activated

The regulation is a steps; if two compressors with different weight are configured, are available 3 steps
activated in regulation band ST07 or ST08.

ATTENTION:
It is possible to protect the compressor setting a maximum number of activation per hour.

Summary of Contents for Ichill 260L_D DUO

Page 1: ...1592015820 User Manual IC200L D DUO rel 1 0 Pag 1 of 149 User Manual Ichill 260L_D DUO Ichill 261L_D DUO Firmware version 1 9 ...

Page 2: ...MING USING THE KEYBOARD 31 10 CHILLER HEAT PUMP SELECTION 36 11 HOW TO SWITCH ON SWITCH OFF THE UNIT 37 12 SWITCH ON SWITCH OFF THE CONDENSING UNIT BY DIGITAL INPUT 37 13 DISPLAY LAYOUT 38 14 DISPLAY CONFIGURATION 39 15 DISPLAY INFORMATION 41 16 FUNCTION MENU M KEY 42 16 1 1 Compressor overload alarm manual reset 43 16 1 2 Compressor overload alarm manual reset with password 43 17 ENERGY SAVING 48...

Page 3: ...Screw Compressor 58 24 COMPRESSOR INVERTER CONTROLLED 58 24 1 Inverter Compressor In Heat Pump And External Temperature 62 25 COMPRESSOR RACK 62 26 COMPRESSORS WITH DIFFERENT CAPACITY 63 27 CIRCUIT MANAGEMENT SATURATION OR BALANCING 64 28 PUMP DOWN 64 29 UNLOADING 66 29 1 High Temperature Of The Evaporator Water Inlet 66 29 2 Condenser High Pressure Condenser High Temperature Or Evaporator Low Pre...

Page 4: ...er Fans 74 36 6 Pre Ventilation And Post Ventilation 74 37 ANTI FREEZE HEATERS INTEGRATION HEATING OR BOILER 75 38 AUXILIARY RELAYS 77 39 AUXILIARY PROPORTIONAL OUTPUTS 78 40 DEFROST CYCLE 81 40 1 Automatic Defrost Procedure 81 40 2 Other Information About The Defrost 82 40 3 Forced Defrost 83 40 4 Combined Defrost 83 40 5 Manual Defrost 83 40 6 Defrost In Unit With Two Circuits 83 40 6 1 Start de...

Page 5: ...NEL MANAGEMENT 94 42 1 Solar Panel In Sanitary Hot Water 94 42 2 Solar Panel In Heating Mode 94 43 UNIT WITH HYBRID EXCHANGERS AIR WATER UNIT 95 44 GEOTHERMAL FREE COOLING 96 44 1 Fan speed control if compressors and free cooling are used for cooling CF97 3 98 45 RECOVERY FUNCTION 98 45 1 Unit With Two Separate Idraulic Circuits 98 45 2 Unit With Two Idraulic Circuit Working In Parallel 99 46 COND...

Page 6: ...m 123 50 TABLE OF THE PARAMETERS 124 51 BLACK OUT 145 52 INSTALLING AND MOUNTING 145 52 1 ICHILL 200 L FORMAT Panel cut out 145 52 2 ICHILL 200 L FORMAT metal front frame 145 52 3 Ichill 200 Din Format SERIES 146 52 4 Vertical boards Vi620 panel cut out 146 53 ELECTRICAL CONNECTIONS 147 54 ACCESSORIES 147 55 TECHNICAL DATA 149 ...

Page 7: ...troller only within the operating limits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation Warning disconnect all electrical connections before any kind of maintenance The instrument must not be opened In case of failure or faulty operation send the instrument back to the distributor or to Dixell company with a detailed description of the fault...

Page 8: ...ide Pump down management With dedicated pressure switch Low pressure switch Low pressure transducer Unloading circuit High temperature of the evaporator inlet water High temperature of the condenser inlet water unit with recovery High condensing pressure Low evaporating pressure Maintenance messages Compressors Evaporator pumps Condenser pumps Auxiliary relays It is possible to configure two relay...

Page 9: ...ortional outputs for condensing fan speed control inverter or phase cut with configurable signal PWM 0 10Volt 4 20mA Four proportional control outputs 0 10V or ON OFF To control the dumper To control an external relay Complete alarm management Internal Data logger up to 100 events Supervisor monitoring TTL output for XJ485 interface ModBus protocol for XWEB Dixell monitoring system ...

Page 10: ...nfigurable 4 NTC PTC 0 5V 4 20mA configurable configurable PROPORTIONAL OUTPUTS 2 PWM outputs for condensing fan 2 0 10V or 4 20mA for condensing fan configurable configurable 4 0 10V configurable configurable OTHER OUTPUTS TTL Output for remote keyboard VGI890 POWER SUPPLY 12 Vac dc 15 10 24 Vac dc 10 opt opt OTHERS Internal RTC opt opt Buzzer opt opt configurable configurable by parameter opt op...

Page 11: ...1592015820 User Manual IC200L D DUO rel 1 0 Pag 11 of 149 3 USER INTERFACE Meaning of the LEDs IC260L IC261L models IC260L IC261L metal front panel ...

Page 12: ...ler heat pump During the programming push one time Select a parameter or confirm a value Push once with probe label showed on the bottom display Change between the read out of the circuit 1 and the circuit 2 and viceversa UP KEY Push once Select the readings of the first circuit Pushing once during the programming To change the parameter code or value Push for 1 second during the programming 1 tim...

Page 13: ...arameter KEY COMBINANTION KEY ACTION FUNCTION Push for 3 seconds together Enter the programming In Pr3 level push SET and the push DOWN key Select the parameter level visibility Pr1 Pr2 Pr3 Push once together Exit the programming Push 5 seconds heat pump with ok condition Manual defrost In Pr3 programming level Push SET and then the MENU key In Pr3 defines if the parameter can be changed or not in...

Page 14: ... 4 active Blinking compressor 4 delay counting ON compressor 5 active Blinking compressor 5 delay counting ON compressor 6 active Blinking compressor 6 delay counting General alarm blinking if there is an alarm not identified by an icon Anti freeze heaters integration heating boiler ON if the output is on Flow alarm differential pressure switch supply fan thermal air air unit is blinking if the co...

Page 15: ...ard with internal temperature probe Use the connection cable CAB CJ30 2x0 2 mm 2 to interface the IC connector to the shielded wire 5 FIRST INSTALLING On Board Clock Optional Giving power supply the bottom display shows rtC alternated with a temperature or pressure value It is necessary to set the RTC If the probes are not connected the display shows the corresponding probe alarm messages In this ...

Page 16: ... output for Hot Key 64 connection or for XJ485 interface module for monitoring system connection MAX current on the relay contacts relè 5 2 A 250V MAX common current 12A 250V Ichill 261L 14 relays 18 digital inputs free of voltage 10 analogue inputs NTC probes or through configuration 6 NTC PTC and 4 pressure transducer 4 20mA or ratio metric 0 5 0Volt 6 modulating outputs 1 output for remote pane...

Page 17: ...tput with modbus RTU protocol for monitoring system connection MAX current on the relay contacts relè 5 2 A 250V MAX common current 12A 250V Ichill 261D 14 digital outputs relays 18 digital inputs free of voltage 10 analogue inputs NTC probes or through configuration 6 NTC PTC and 4 pressure transducer 4 20mA or ratio metric 0 5 0Volt 6 modulating outputs 1 output for remote panel max 2 remote pan...

Page 18: ... 1 0 Pag 18 of 149 Temperature probes connection NTC PTC Probes Connection diagram for IC260L IC261L IC260D and IC261D PbC Probes common terminal Digital Inputs Connection diagram for IC260L IC261L IC260D and IC261D GND Digital inputs common terminal ...

Page 19: ... Pag 19 of 149 Pressure Transducer connection 4 20mA signal Connection diagram for IC260L IC261L IC260D and IC261D 12V Pressure trasducers common terminal Ratiometric Transducer connection 0 5V signal Connection diagram for IC260L IC261L IC260D and IC261D ...

Page 20: ...nected to the cut of phase controller Mod XV05PK mono phase cut phase control 500 Watt 2A Mod XV10PK mono phase cut phase control 1000 Watt 4A Mod XV22PK mono phase cut phase control 2200 Watt 9A Condensing Fan control 0 10Vdc signal Connection diagram for IC260L IC261L IC260D and IC261D In case of only one condensing circuit configured the Out1 Out2 outputs work together giving the same signal ...

Page 21: ... Control 4 20mA signal Connection diagram for IC260L IC261L IC260D and IC261D In case of only one condensing circuit configured the Out1 Out2 outputs work together giving the same signal Proportional outputs 0 10V dumper control Connection diagram for IC260L IC261L IC260D and IC261D ...

Page 22: ...umper motor has a common pole for the 0 10V and the power supply the connection has to be done as showed below Ground connection has to be evaluated case per case Proportional outputs configured to manage an external relay Connection diagram for IC260L IC261L IC260D and IC261D ...

Page 23: ...d or download a copy of the parameters of the instrument see HOT KEY paragraph XJ485 Connection Connection diagram for IC260L IC261L The XJ485 interface is a converter between the RS485 and the TTL connector output The RS485 uses two terminals and that must be connected respecting the polarity to build the serial line Use the CAB RS02 to connect the XJ485 interface to the TTL connector ...

Page 24: ... the RS 485 signal Remote keyboard VI620 Connection diagram for IC260L IC261L IC260D and IC261D Using the remote panels provided with the ambient NTC probe the display measurement and the control can be managed directly by this probe Use shielded cable for the connection up to 150mt maximum In case of communication failure the upper display shows noL no link Use the CAB CJ30 to interface the ichil...

Page 25: ...1592015820 User manual IC260_261L_D DUO FW1 9 rel 1 0 Pag 25 of 149 ...

Page 26: ...ery circuit 2 outlet 17 Temperature probe NTC for hot water of the condenser recovery common outlet 18 Temperature probe NTC for free cooling water inlet circuit 19 Temperature probe NTC for dynamic setpoint external air boiler change over 20 Temperature probe NTC for combined defrost circuit 1 21 Temperature probe NTC for combined defrost circuit 2 22 Temperature probe NTC for auxiliary output 1 ...

Page 27: ...0 5Volt 30 Evaporator pressure probe circuit 1 pressure 4 20 mA ratio metric 0 5Volt 31 Aux 1 output probe control 4 20 mA ratio metric 0 5Volt 32 Aux 2 output probe control 4 20 mA ratio metric 0 5Volt 33 Dynamic setpoint probe 4 20 mA 34 Compressor 1 or circuit 1 pressure probe 35 Compressor 2 or circuit 2 pressure probe After the number 35 the display read out goes from o 1 to c73 that allows t...

Page 28: ...t 57 Request step 9 condensing unit 58 Request step 10 condensing unit 59 Request step 11 condensing unit 60 Request step 12 condensing unit 61 Request step 13 condensing unit 62 Request step 14 condensing unit 63 Request step 15 condensing unit 64 Request step 16 condensing unit 65 Sanitary water flow switch 66 Solar panel flow switch 67 Only sanitary water 68 Sanitary water heaters overload 69 S...

Page 29: ... Sanitary water status 45 STD By status 46 Solenoid water valve circuit 1 47 Solenoid water valve circuit 2 48 Direct start up compressor 1 relay PW start relay PW 1 of the compressor 1 Star delta start relay line 1 of the compressor 1 49 PW start relay PW 2 of the compressor 1 Star delta start relay linea 2 compressor 1 50 Star centre of the Star delta start of the compressor 1 51 Capacity step v...

Page 30: ...l Parameters involved CF68 Condenser control configuration for circuit 1 CF69 Condenser control configuration for circuit 2 0 0 10Vdc for external mono or three phase fan control board 1 4 20mA for external mono or three phase fan control board 2 PWM only for external mono phase fan control board with cut phase control Proportional output configuration 0 10 Vdc 4 outputs Parameters involved CF70 P...

Page 31: ... starts automatically Err if the programming procedure has found an error and the parameter have not been transferred Repeat the procedure To exit the UPL function push the MENU key or wait the time out 15 sec 9 PROGRAMMING USING THE KEYBOARD Through the instrument keyboard it is possible to enter the programming In all the three accessible levels the user can show and modify both value and visibi...

Page 32: ...hat it is necessary to know the old password value 1 Enter the Pr1 level 2 Select a parameter family 3 Inside the family select the Pr1 1 Pr1 on the bottom display the current password value 1 on the top display Push the SET key to change the value that now is blinking 4 Use the UP or DOWN key to insert the NEW PASSWORD value then push SET to confirm the new value 5 The top display blinks for some...

Page 33: ...programming push SET UP Enter the programming level Pr2 Enter the Pr2 maintenance level 1 Push the SET DOWN keys together for 3 seconds The top display shows PAS while the bottom display shows Pr1 labels 2 Push UP key for 2 seconds and the top display will show Pr2 3 Push SET key and the top display shows a blinking 0 with UP or DOWN insert the Pr2 password Push SET and if the value is correct top...

Page 34: ...be changed All the leds are off the parameter is available only in Pr3 Led 4 on the parameter can be changed also in Pr2 Led 4 blinking the parameter is visible also in Pr2 Leds 3 4 on the parameter is available in Pr2 and in Pr1 Leds 3 4 blinking the parameter is visible in Pr1 and in Pr2 The MENU key allows to exit from a family to reselect another without exit the Pr2 level The MENU key allows ...

Page 35: ...ETER Pr1 Pr2 1 Keep pushed the SET key 2 Push one time the MENU key the leds 3 4 turn on the parameter can be seen and modified in Pr1 and Pr2 Programming digital input and output polarity The parameters that allow to configure different options such as 1 Digital inputs 2 Digital outputs relay 3 Proportional output configured as ON OFF 4 Analogue input configured as digital input have a different ...

Page 36: ...rrides the digital input C HP function If the external air temperature are within the CF81 differential the user can change the running mode from the keyboard If the unit is running with CF79 1 or CF79 2 and it is requested a running mode change the controller turns off all the outputs starts a fixed delay time signalled by the chiller or heat pump blinking led This blinking led indicates which ru...

Page 37: ...ered in stand by when the leds and are both off The stand by is reached each time the Chiller or the Heat Pump are turned off During the stand by the user can Show all the probe measurements Detect and reset the alarm events SWITCH ON SWITCH OFF THE ICHILL DIGITAL INPUT Turn on or off the unit from digital input Set the digital input as remote ON OFF depending on the input polarity it can generate...

Page 38: ...e is activated also a step the others if availables will be requested by configured digital input as as resources on circuits With active contact if the unit is being switched off by keyboard it can be switched on by keyboard If the unit is being switched off by keyboard in order to switch on the unit from digital input it must be deactivated and activated 13 DISPLAY LAYOUT As default in normal co...

Page 39: ...ayed on the top display 1 Set the parameter dP03 0 it means configurable 2 Select the dP01 parameter into the range 0 14 descripted here below PARAMETER VALUE DESCRIPTION CORRESPONDING LABEL dP01 0 No label No label dP01 1 temperature probe of the evaporator water inlet Ein dP01 2 temperature probe of the evaporator water outlet 1 and 2 Out1 circuit 1 Out2 circuit 2 dP01 3 temperature probe of the...

Page 40: ... dP03 0 it means configurable 2 Select the dP02 parameter into the range 0 17 descripted here below PARAMETER VALUE DESCRIPTION CORRESPONDING LABEL dP02 0 No label No label dP02 1 temperature probe of the evaporator water inlet Ein dP02 2 temperature probe of the evaporator water outlet 1 and 2 Out1 circuit 1 Out2 circuit 2 dP02 3 temperature probe of the common evaporator water outlet Eout dP02 4...

Page 41: ...h the label OuT2 Par dP03 2 Top display of the circuit 1 Condenser 1 water inlet temperature with the label CIn1 Bottom display of the circuit 1 Condenser 1water outlet with the label COu1 Top display of the circuit 2 Condenser 2 water inlet temperature with the label Cin2 Bottom display of the circuit 2 Condenser 2water outlet with the label Cou2 Par dP03 3 Top display of the circuit 1 Condenser ...

Page 42: ...real setpoint and the top diplay shows the setpoint that the unit is really using for the thermoregulation ATTENTION The SEtr label appears only if the Energy saving or the Dynamic Setpoint are active To modify the working setpoint it is necessary the setpoint values is displayed on both the display temperature temperature or temperature pressure o pressure pressure without any identification labe...

Page 43: ...e Alrm function Labels involved CO1r compressor 1 overload reset CO6r compressor 6 overload reset MANUAL ALARM RESET PROCEDURE Enter Menu function 1 Use UP or DOWN key and select the Alrm on the bottom display 2 Push SET one time if there are active alarms the bottom display shows the alarm label eg C1tr for compressor 1 while the top display shows the label rSt to reset the alarm or NO if the ala...

Page 44: ... DOWN keys the ArSt label on the bottom display while the top display shows PAS 5 Push SET the bottom display shows PAS and the top display a blinking 0 6 Insert the password See parameter family AL 7 If the password is OK the label ArST blinks for 5 seconds then the display returns to normal condition read out probes 8 If the password is not correct the display shows PAS again in any case is poss...

Page 45: ...sor 6 disabled The label C1dS C6dS are available only if the corresponding compressor is configured Read out of the compressor discharge temperature probe The menu function allows to read out the compressor temperature probes COdt FUNCTION shows the discharge temperatures Label involved in Codt function CO1t Compressor 1 discharge temperature CO6t Compressor 6 discharge temperature 1 Use the UP or...

Page 46: ...put percentage of the condenser fan control The proportional outputs of the two circuits that control the fan speed can be showed in the menu function Cond FUNCTION selects the proportional output 1 and 2 Label involved in Cond function Cnd1 Proportional output status of the condenser fan of the circuit 1 Cnd2 Proportional output status of the condenser fan of the circuit 2 TO SEE THE OUTPUT PERCE...

Page 47: ...el probe 1 temperature SSP2 Solar panel probe 2 temperature SSdi Solar panel differential SPMP Solar panel water pump status SLrL Solar panel valve status Read out of the probes configured to control an auxiliary output relay The probe values configured to control the auxiliary relay output can be showed in the menu function uS FUNCTION temperature pressure value of the control probe for auxiliary...

Page 48: ...al value of the set point is showed pressing the key When the Energy Saving function is activated the chiller set point and heat pump are modified as follow Set point chiller St1 ES14 Chiller differential ES15 Set point heat pump St4 ES16 Heat pump differential ES17 How to program the Energy saving and how to Switch on Switch off the Ichill by RTC Enter the parameter programming 1 Select the ES pa...

Page 49: ...EKLY PROGRAMMING Repeat the daily programming for the other days of the week using parameters ES08 ES13 How to switch on the controller when it is off by real time clock When the unit is in OFF by RTC and the parameter ES18 0 if the user switch on the controller by keyboard the unit stay on for ES18 time when this time is elapsed the unit return to OFF 18 DYNAMIC SETPOINT This function allows to m...

Page 50: ...rameter Sd02 is not equal to 0 A analog input is configured as 4 20mA for dynamic setpoint control or outside temperature Dynamic setpoint diagram Analog input configured as 4 20mA for dynamic setpoint Analog input configured as outside temperature and positive differential Analog input configured as outside temperature and negative differential ...

Page 51: ...t program a setpoint value lower than ST02 the range is 30 C ST01 Par ST03 Maximum setpoint limit in chiller The user cannot program a setpoint value higher than ST02 the range is ST01 70 C Par ST04 Heat pump setpoint It allows to set the Heat pump working temperature within the range ST05 ST06 Par ST05 Minimum setpoint limit in heat pump The user cannot program a setpoint value lower than ST05 th...

Page 52: ...condenser 1 inlet 8 NTC probe temperature of the condenser 2 inlet 9 NTC probe temperature of the condenser 1 outlet 10 NTC probe temperature of the condenser 2 outlet 11 NTC probe temperature of the condenser common outlet The parameter ST11 determines the type of regulation St11 0 Proportional regulation St11 1 Neutral zone regulation 20 2 Proportional Regulation Chiller regulation Heat pump reg...

Page 53: ...1592015820 User manual IC260_261L_D DUO FW1 9 rel 1 0 Pag 53 of 149 20 3 Neutral Zone Regulation Compressor regulation in chiller Compressor regulation in heat pump ...

Page 54: ...ut rotation resource When the temperature is inside the neutral zone and only one compressor is ON a timer is activated parameter CO54 when this time is elapsed the Ichill switch off the compressor and swith on an available compresso If the parameter value is 0 the function is non activated 21 COMPRESSORS MANAGEMENT 21 1 Compressors Start Up The parameter CO10 defines the compressor start up CO10 ...

Page 55: ...re both turned off at the same time Fig 2 Part Winding start up of Compressors or capacity compressors If one or more capacity compressors are configured and the thermoregulation requires the full load start up the controller turns the solenoid valve on after 1 second the first motor part of the 1 st compressor relay K1 of Fig 2 and then the complete control with the contactor K2 Durning the CO13 ...

Page 56: ...ve will be switched off maximum power 22 COMPRESSORS ROTATION The CO14 parameter determines the sequence of compressor activation deactivation CO14 0 Fixed sequence E g 3 compressors configured Switching on 1st compressor 2nd compressor 3rd compressor etc Switching off 3 rd compressor 2 nd compressor 1 st compressor CO14 1 Working hour rotation First compressor to be activated is the compressor wi...

Page 57: ...FF Cap step 3 ON Cap step 3 OFF Direct action with sequential step Compressor Cap step 1 Cap step 2 Cap step 3 Power 0 25 50 75 100 CO06 2 inverse action Eg compressor with 3 capacity step Capacity 25 50 75 100 Compr Compressor ON Compressor ON Compressor ON Compressor ON Out relay Cap step 1 ON Cap step 1 ON Cap step 1 ON Cap step 1 OFF Out relay Cap step 2 ON Cap step 2 ON Cap step 2 OFF Cap ste...

Page 58: ...ity step is used only to start the screw compressor at the minimum load the valve is ON when the compressor is OFF and it remains ON for CO13 seconds after the switching ON of the compressor CO07 3 SCREW COMPRESSOR First capacity step is used as lower step of the regulation when the compresor is OFF the valve is ON 23 2 INTERMITTENT SOLENOID VALVE FOR SCREW COMPRESSOR Some screw compressors have a...

Page 59: ... parameter CO62 0 the compressor is forced to works at maximum power and then it modulates the power according to the regulation request It is possible to limit the output of the inverter compressor in Chiller Heat pump and Sanitary hot water o maximum output inverter in Chiller parameter CO79 o maximum output inverter in Heat pump parameter CO80 o maximum output inverter in Sanitary hot water par...

Page 60: ...1592015820 User manual IC260_261L_D DUO FW1 9 rel 1 0 Pag 60 of 149 TWO COMPRESSORS INVERTER CONTROLLED OPERATING MODE CHILLER TWO COMPRESSORS INVERTER CONTROLLED OPERATING MODE HEAT PUMP ...

Page 61: ...verter controlled with power less than CO63 0 250 Min 10 Min CO65 Operating time of the compressor inverter controlled at maximum power 0 250 sec 10sec CO66 Maximum operating time of the compressor inverter controlled 0 999 Hr 1Hr CO67 Minimum value of the compressor 1 inverter controlled 0 CO68 CO68 Maximum value of the compressor 1 inverter controlled CO67 100 CO69 Minimum value of the compresso...

Page 62: ...Cr01 Cr09 In this operation mode the controller can manage maximum 6 compressors in only one circuit only the chiller mode is enabled and the regulation is only in proportional mode The parameter Cr01 allows to enable the compressor rack regulation Cr01 0 Compressor rack regulation disabled Cr01 1 Compressor rack enabled and regulation on the probe defined by parameter ST09 Cr01 2 Compressor rack ...

Page 63: ...or 5 capacity 0 100 CF92 Compressor 6 capacity 0 100 CF93 Maximum number of start up of the compressor in 15 minutes 0 Not enabled 0 15 Example circuit with 2 compressors step 1 the first compressor to be activated is the compressor with lower weight step 2 the compressor is switched off and is activated the compressor with higher weight step 3 both compressors are activated The regulation is a st...

Page 64: ...compressor works until the pressure switch is activated or after a maximum time CO39 in this case an alarm is displayed b1PH or b2PH but the machine continuous to work as normal If the alarm occurs more than AL21 times per hour the Ichill generate a manual alarm Low pressure alarm when the low pressure switch is used is disabled for AL02 time after valve activation AL02 0 the alarm is disabled whe...

Page 65: ...n CO37 CO38 If the pressure remains lower than CO37 CO38 the compressors does not restart and after CO39 time a pump down alarm is displayed The parameter AL23 allows to choose if the pump down alarm during the switching on is automatic or manual reset AL23 0 automatic reset the compressor will rester when the pump down pressure switch is active AL23 1 manual reset if the number of pump down alarm...

Page 66: ...he condenser pressure or temperature is higher than CO44 the display shows and the unit works with the number of compressors selected in CO49 parameter or CO96 speed in case of inverter compressor If the compressor is a screw compressor the unloading function works at least CO50 time if CO50 0 this function is disabled EXAMPLE 2 circuits and 3 compressors per circuit 6 compressors are running if C...

Page 67: ... the probes configured rise over CO55 CO56 or when the CO57 time is elapsed 30 SOLENOID VALVE FOR LIQUID INJECTION It is possible to configure 2 valves for the liquid injection of the screw compressor compressor 1 and compressor 2 When the compressor is off the solenoid valve is always OFF When the compressor is on if the temperature detected by the probe mounted in the compressor increases over C...

Page 68: ...e is switched on Note During the defrost and when the compressor is off in dripping time the pump is on 31 2 Modulating Evaporator Water Pump To enable the modulating evaporator water pump is necessary to configure an analog output as Modulated evaporator water pump see analog and digital output configuration The modulating evaporator water pump is enabled in cooling heating and sanitary hot water...

Page 69: ...eat pump and sanitary hot water Parameter Description min max udm US 53 Probe 1 selection for evaporator water pump modulation in Heat Pump 0 10 US 54 Probe 2 selection for evaporator water pump modulation in Heat Pump 0 10 US 55 Set point for maximum speed of modulationg evaporator water pump in Heat Pump 30 0 58 0 0 0 70 0 158 50 0 725 C F Bar Psi Dec int Dec int US 56 Proportional band for maxi...

Page 70: ...s off in dripping time the water pump supply fan is on 32 1 Condenser Pump Group It is possible to configure two condenser water pumps the water pump to be activated is the pump with less working hours When a water pump works continuosly for CO24 time the other one is switched on and after CO25 second the first one is switched off If a water pump overload occurs the water pump is switched off and ...

Page 71: ... hour of the evaporator water pump Parameters CO34 CO35 number of working hour of the condenser water pump Parameters CO73 number of working hour of the sanitary water pump Parameters CO74 number of working hour of the solar panel water pump Parameters CO95 number of working hour of the free cooling water pump If the parameter is set to 0 the maintenance signalling is disabled but the running hour...

Page 72: ...g temperature pressure Par FA01 3 Par FA02 0 Fans on with ON OFF continuos regulation and with temperature pressure transducer control only when the compressor is on at least one relay is configured as fan control When the compressor turns off also the fans are forced off Par FA01 3 Par FA02 1 Fans on with ON OFF continuos regulation and with temperature pressure transducer control only when the c...

Page 73: ...signal to the motor current voltage phase displacement of a line powered ac load If FA01 3 when the compressor starts up and the proportional regulation requires to turn off the fan cut off if FA14 0 the fan is forced at the minimum speed for the time set in FA14 itself if FA14 0 the function is disabled 36 3 Condensing Unit Common Or Separate Condenser FA05 defines the condenser unit Par FA05 typ...

Page 74: ...er manual IC260_261L_D DUO FW1 9 rel 1 0 Pag 74 of 149 36 5 On Off Regulation Of Condenser Fans Condenser fan in Chiller mode Condenser fan in Heat pump mode 36 6 Pre Ventilation And Post Ventilation Pre ventilation ...

Page 75: ...obe is evaporator water inlet Par Ar07 2 function enabled the regulation probe are evaporator water outlet circuit 1 and evaporator water outlet circuit 2 ATTENTION It is not possible to control the heaters of the circuit 1 with the probe of the circuit 2 and viceversa Par Ar07 3 function enabled the regulation probe are evaporator water outlet circuit 1 evaporator water outlet circuit 2 or evapor...

Page 76: ...lls blow Ar19 setpoint the compressors are switched off they can restart if the outside temperature increase over Ar19 Ar20 Heating control Ar11 2 When outside temperature decreases under the Ar12 setpoint the Ar14 delay starts counting If during this delay the outside temperature increase over the Ar12 Ar13 the process is aborted and the time Ar14 reloaded When the time Ar14 is elapsed and the ex...

Page 77: ...refer to uS parameters Auxiliary relay with direct action Auxiliary relay with inverse action US 1 Auxiliary relay 1 operating mode 0 Not enabled 1 Always available with direct action 2 Available only when the unit is on with direct action 3 Always available with reverse action 4 Available only when the unit is on with reverse action 0 4 US 2 Analog input configuration for auxiliary relay 1 contro...

Page 78: ...int US 16 Auxiliary relay 2 winter minimum set point 30 0 22 0 0 0 US18 C F Bar Psi Dec int Dec int US 17 Auxiliary relay 2 winter maximum set point US18 70 0 158 50 0 725 C F Bar Psi Dec int Dec int US 18 Auxiliary relay 2 winter set point US16 US17 C F Bar Psi Dec int Dec int US 19 Auxiliary relay 2 summer differential 0 1 0 0 1 1 25 0 45 14 0 203 C F Bar Psi Dec int Dec int US 20 Auxiliary rela...

Page 79: ...direct action enabled only if the Ichill is working in chiller or heat pump 3 Function enabled inverse action enabled also in stand by and remote off 4 Function enabled inverse action enabled only if the Ichill is working in chiller or heat pump Auxiliary Proportional output Direct action US46 0 US46 1 Auxiliary Proportional output Inverse action US46 0 US46 1 ...

Page 80: ...alog output 1 winter minimum set point 30 0 22 0 0 0 US29 C F Bar Psi Dec int Dec int US 28 Analog output 1 winter maximum set point US29 70 0 158 50 0 725 C F Bar Psi Dec int Dec int US 29 Analog output 1 winter set point US27 US28 C F Bar Psi Dec int Dec int US 30 Analog output 1 summer differential 0 0 0 0 0 0 25 0 45 14 0 203 C F Bar Psi Dec int Dec int US 31 Analog output 1 winter differentia...

Page 81: ...ntial 0 0 0 0 0 0 25 0 45 14 0 203 C F Bar Psi Dec int Dec int US 44 Analog output 2 minimum value 0 US45 US 45 Analog output 2 maximum value US44 100 US 46 Operation mode under minimum value 0 1 US 63 AUX 1 analog output operation mode 1 only in Chiller 2 only in Heat pump 3 in Chiller and Heat pump 1 3 US 64 AUX 2 analog output operation mode 1 only in Chiller 2 only in Heat pump 3 in Chiller an...

Page 82: ...er dF07 2 the compressor is activated if dF14 1 and or dF15 1 all the compressor are activated with a delay of dF16 Phase 4 Defrost ON Condenser fan management If dF17 0 condenser fan are always off If dF17 1 condenser fans start if the condensing temperature pressure value is higher than dF18 and the regulation is the standard chiller regulation ATTENTION The condenser fan is controlled by the co...

Page 83: ... setpoint to start the defrost of the circuit 2 the defrost cycle starts otherwise the unit still runs in heat pump mode When the temperature decreases under the dF10 or dF12 values the defrost immediately start The defrost ends when the NTC combined defrost probe 1 or 2 increases over dF11 circuit1 or dF13 circuit2 40 5 Manual Defrost The manual defrost key function is enabled if the unit is on w...

Page 84: ...OT POSSIBLE TO DO MODIFY THE dF PARAMETERS WHEN THE DEROST CYCLE IS RUNNING dF01 Defrost mode 0 Defrost not enabled 1 Temperature pressure defrost The dF09 Time delay to defrost starts to decrease when the temperature pressure decreases under the dF02 setpoint The defrost ends when pressure temperature reaches the end defrost temperature pressure 2 Time duration defrost The dF09 time delay to the ...

Page 85: ...g of a combined defrost After the dF09 counting the NTC probe of the combined defrost of the circuit 1 is compared to the dF10 setpoint if the value is lower the defrost starts otherwise the unit runs in heat pump mode and when the temperature decreases under dF10 the defrost immediately starts dF11 Temperature setpoint to end a combined defrost of the circuit 1 It allows to set a temperature valu...

Page 86: ...d the start condition dF23 It determines the end of the defrost for unit having two circuit and common condensing ventilation Operative mode 0 Independent 1 The end defrost condition are satisfied In both circuits 2 At least one circuit has reached the end defrost condition dF24 Start stop defrost probe Start stop defrost from analog input 0 start and stop with condenser temperatur pressure probe ...

Page 87: ...ted on the display The production of sanitary water can only be requested when the temperature detected by Probe n 1 is below the FS03 set point band FS04 all the compressors are called into action when the function is enabled The sanitary water set point can be viewed and modified on the display by pressing the SET button It is possible to set a minimum temperature under which the sanitary water ...

Page 88: ... this time has elapsed parameter FS09 there are 2 options If FS07 0 enable all the compressors if not already enabled If FS07 1 enable all the compressors and all the heating elements After all the available steps compressors and heaters have been enabled they remain activated until the sanitary water set point has been reached At which point the heating elements are switched off immediately while...

Page 89: ... the compressors and heating elements configured for the sanitary water are switched on once the set point FS14 is reached the compressors are switched off delayed of CO04 time while the heating elements are switched off when the the set point FS14 band FS20 is reached The anti legionella cycle is enabled for FS19 time during this time the machine works to maintain the anti legionella set point Th...

Page 90: ...is ON If the machine is forced to work only in sanitary water digital input only sanitary water is active the evaporator water pump is o OFF if FS47 1 o ON if FS47 0 if CO16 2 evaporator water pump on if at least a compressor is on the parameter FS47 allows to choose if the water pup is on or off in case of sanitary hot water production If the machine has the sanitary valves placed in the gas circ...

Page 91: ... seconds the sanitary valve 2 is switched off Sanitary hot water is produced until the FS03 set point is reached Once the sanitary water set point is reached the sequence of operation is the following sanitary valve 2 is switched on after a delay of FS10 seconds the sanitary water valve 1 is switched off after a delay of FS28 seconds the sanitary water circulation pump is switched off Condenser fa...

Page 92: ...ry water valve 2 is switched off Sanitary hot water is produced until the FS03 set point is reached Once the sanitary water set point is reached sanitary water valve 2 is switched on after a delay of FS10 seconds the sanitary water valve 1 is switched off after a delay of FS28 seconds the sanitary water circulation pump is switched off Condenser fans are managed normally The defrost takes priority...

Page 93: ...witched off after FS28 seconds the sanitary water circulation pump and the compressors are switched off after the dF08 2 delay the status of the 4 way valve is reversed If the sanitary water production is working and the temperature detected by the chiller regulation probe is greater than ST01 ST07 cold water required the sequence of operatiuon is the following the sanitary water pump will remain ...

Page 94: ... water temperature and sanitary water set point if sanitary water temperature FS23 FS24 the valve of the solar panel is open and the water pump is on if sanitary water temperature FS23 the valve of the solar panel is close and the water pump is off Solar panel in heating mode FS55 2 If solar panel temperature sanitary temperature FS59 Dt to enable solar panel in sanitary water the solar panel are ...

Page 95: ...ded At first compressors are not used for heating It is possible to set a maximum time to use solar panel FS61 when this time is elapsed and sanitary set point is not reached the solar panel are disabled and compressors are switched on In regulation if solar panel temperature heating temperature FS60 the solar panel are disabled and the heating is done by compressors Dt control is done only at the...

Page 96: ... 3 Free cooling and compressors work together to produce cooling The compressors work according their standard regulation Free cooling management 2 probes are needed selected from those configured in the instrument 1 Pb1 2 Pb2 etc parameters to select the probes are FS41 and FS42 if T1 temperature T2 temperature FS21 the Free cooling is enabled and the relay and analog output are manages as figure...

Page 97: ...mperature set point to force the maximum speed of condenser fan 0 1 Only free cooling for cooling CF97 2 Compressors are not used for cooling Evaporator and condenser water pumps are managed according to chiller probe and St01 set point free cooling valve pump is managed according chiller probe and FS37 set point or St01 if St01 FS37 If the free cooling set point is not reached in FS36 minutes 0 f...

Page 98: ...ery function is Enabled if 1 Par rC01 not equal to 0 2 Chiller running mode 3 The condensing temperature pressure is lower than set rC06 rC07 differential 4 The input output resources are configured 5 The remote recovery digital input is activated The recovery function is NOT Enabled if 1 Par rC01 0 2 Heat pump running mode remote OFF or stand by 3 The condensing temperature pressure is higher tha...

Page 99: ...cuits 1 and 2 configured with more than one step of power Eg each circuit with three compressors After the rC04 time delay minimum on time of the recovery function when activated if the digital input of the recovery is not active the units stops the new resources for the time set in rC02 After this delay the recovery valve is turned off and the regulation restarts with its normal running condition...

Page 100: ...is delay the recovery valve is turned off and the regulation restarts with its normal running condition RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED When the system is running with 100 Eg all the three compressor of a circuit are on of power and the digital input start the recovery function before turning on the recovery valve one of the step depending on the time runni...

Page 101: ...tion mode with supplay fan only and it is activated the Ichill enables only the supply fan other loads are disabled the supplay fan works according to the time table programming parameters ES01 ES13 ATTENTION When the supply fan is on and the Ichill is forced in STD BY or remote OFF by digital input the supply fan will be switched off with a CO18 delay 48 MESSAGES ALARM CODES The alarm codes are d...

Page 102: ...ions ATTENTION The alarm relay and the buzzer are activated only if the alarm appears during normal running conditions When the temperature setpoint has been reached and CO16 CO21 2 the icon blinks without alarm NOTE ABOUT THE FLOW ALARM CO16 CO21 0 Water pump not enabled The alarm is managed only if one digital input is configured as flow switch the restart is always automatic CO16 CO21 1 Water p...

Page 103: ...on only during normal running conditions Loads OFF APFL solar panel flow alarm Label on alarm visualization menu APFL solar panel flow alarm Origin The flow switch alarm is not detecded for AL69 seconds starting from water pump activation Flow switch alarm is signalled if the digital input is active for AL71 seconds Reset Automatic reset digital input not active for AL72 seconds Manual reset Reset...

Page 104: ...ump alarm of support evaporator 2 Origin Active ID when it is configured as overload pump of evaporator 1 Active ID when it is configured as overload pump of support evaporator 2 Reset With active digital input Restart Manual reset procedure in function menu Symbol On the display the symbol is blinking Action Alarm relay buzzer ON Loads Evaporator water pump and compressors OFF AtC1 AtC2 Condenser...

Page 105: ...er ON Loads OFF AEE Eeprom alarm Label on alarm visualization menu AEE Origin Wrong eeprom data Reset Restart Manual Symbol On the display the symbol is blinking Action Alarm relay buzzer ON Loads OFF AFr Power supply frequency alarm Label on alarm visualization menu AFr Line frequency alarm Origin The power supply frequency is not equal to the Par CF83 Reset Ferquency control parameter adjusted d...

Page 106: ... not active after the delay in Par AL53 Restart Automatic Symbol On the display the symbol is blinking Action Alarm relay buzzer ON REGULATION Alarm Alarm relay buzzer ON ATTENTION If during AL53 the alarm stop and start again the AL44 time delay is reloaded ALC2 Generic alarm with stop regulation Label on alarm visualization menu ALC1 generic signal alarm from digital input with stop regulation i...

Page 107: ... not respected and pump enabled FA18 FA19 With pump and defrost enabled there are no evaporating condensing probes With triac regulation CF68 CF69 2 the power supply configuration is Vcc CF83 0 ACF3 Two digital analogue inputs configured with the same function or without the necessary resources es compressor 3 overload but compressor 3 relay not configured ACF4 CF79 1 and none digital input config...

Page 108: ...g or star delta The necessary step valve configurated One relay is configured Too much compressors Intermittent valve when ON OFF time CO08 CO09 0 By pass gas when the by pass 0 Compressor Motor coil 2 center of the star with direct compressor start up Wrong configuration of the capacity step valve ACF7 Evaporator pump Enabled CO16 0 but the relay is not configured Not enabled CO16 0 but the relay...

Page 109: ...None probe is configured as evaporator inlet probe and free cooling probe wrong configuration of the following parameters FS21 FS22 AC13 Sanitary hot water function enabled and None relay is configured as valve 1 valve 2 or sanitary water pump None probe is configured as probe 1 and probe 2 for sanitary hot water production Origin Wrong programming Reset Correctly programming Restart Automatic Sym...

Page 110: ...ial With unloading ON after the CO43 time delay Restart Automatic Symbol On the display the symbol is blinking Action Alarm relay buzzer OFF AEht alarm from high temperature of the evaporator water inlet Label on alarm visualization menu AEht High water temperature evaporator inlet Origin During normal running condition when the temperature pressure of evaporator water inlet is higher than AL61 se...

Page 111: ...hat load Reset Running hour reset Hour label in Menu function Restart Manual Symbol On the display the symbol is blinking Actions Alarm relay and buzzer activated REGULATIONS Actions Only signalling Loads Not modified The parameters CO34 CO35 define the hour set counters for the condenser water pump Support water pump They establish the load running hours limit of the pump s or the supply fan to g...

Page 112: ...the symbol is blinking Action Alarm Relay and buzzer on b1AC b2AC b1Ac b2Ac Antifreeze alarm Low outlet temperature Air Air unit in Chiller mode Label on alarm visualization menu b1AC anti freeze alarm of the circuit 1 in chiller b2AC anti freeze alarm of the circuit 2 in chiller b1Ac anti freeze alarm signalling of the circuit 1 in chiller b2Ac anti freeze alarm signalling of the circuit 2 in chi...

Page 113: ...al input also the anti freeze heaters are turned on Attention Par AL35 anti freeze alarm delay low outlet air temperature air air unit when the unit starts in heat pump mode In stand by or remote OFF there is an anti freeze alarm and the time delay in AL35 0 if the unit is manually turned on in heat pump from keyboard or remote input the alarm is reset so the unit can start at least for the time s...

Page 114: ...s turned on For the time set in AL01 after turning on the compressor Reset When the condensing probe temperature is higher than AL03 AL04 differential Restart Automatic Manual after AL05 events per hour Reset procedure in Menu function Symbol On the display the symbol is blinking Action Alarm Relay and buzzer on ATTENTION When the pressure transducers are configured the low pressure alarms are rel...

Page 115: ...that starts after the AL11 delay when the unit is properly running Reset Digital input not active Restart Automatic Manual after AL013 events per hour Reset procedure in Menu function If AL76 1 the alarm is only a warning and the compressor remains on Symbol On the display the symbol is blinking Action Alarm Relay and buzzer on OIL ALARM FROM PRESSOSTAT SWITCH OR OIL LEVEL SWITCH screw Occasionall...

Page 116: ...over 100 C it is 1 C Reset If the probe value of the high discharge temperature is lower than AL39 AL40 differential Restart Automatic Manual when there are AL41 per hour Reset procedure in Menu function Symbol On the display the symbol is blinking Action Alarm Relay and buzzer on Compressor involved OFF C1tr C2tr C3tr C4tr C5tr C6tr Compressor overload alarm Label on alarm visualization menu C1tr...

Page 117: ...b2CU unloading message from condenser 2 Origin During normal running condition when the temperature pressure of evaporator condenser probe is lower than CO46 setpoint Reset when the temperature pressure of evaporator condenser probe value is higher than CO46 CO47 After unloading is activated and after Par CO48 Restart Automatic Symbol On the display the symbol is blinking Action Alarm relay buzzer...

Page 118: ...er than CO37 CO38 differential Restart Automatic Manual and logged after AL21 events per hour if AL23 1 reset procedure in function menu If AL23 0 it is automatic and not logged Symbol On the display the symbol is blinking Action Alarm relay buzzer ON when it becomes manual C1Mn C2Mn C3Mn C4Mn C5Mn C6Mn Compressor maintenance Label on alarm visualization menu C1Mn Compressor 1 maintenance C6Mn Com...

Page 119: ...ssages Loads Not changed ASUn Solar panel water pump mintenance Label on alarm visualization menu ASUn Sanitary water pump maintenance Origin Pump running hours Hour counter setpoint Reset Hour reset in function menu Restart Manual Symbol On the display the symbol is blinking Action Alarm relay buzzer ON Regulation Action Only display warning messages Loads Not changed Alarm relay and buzzer Alarm...

Page 120: ... counting for 255seconds if at least an alarm event appears the interval itself is marked Active Starting from the first interval the instrument calculates the 16 intervals and at the end it restats overwriting from the first In this way the last hour is always monitored and counted the active intervals when the number of active intervals reaches the threshold set with the corresponding parameter ...

Page 121: ...Yes 6 Yes Yes APFL Solar panel flow switch alarm Yes 6 Yes Yes AtSF Fan supply overload alarm Yes Yes Yes Yes AtE1 Evaporator 1 water pump overload alarm Yes 4 Yes boiler 5 Yes Yes AtE2 Evaporator 2 water pump overload alarm Yes 4 Yes boiler 5 Yes Yes AtC1 Condenser 1 water pump overload alarm Yes 4 Yes Yes AtC2 Condenser 2 water pump overload alarm Yes 4 Yes Yes AtAS Sanitary water pump overload ...

Page 122: ...t both in alarm from the corresponding digital inputs in this case the boiler heaters are on only with thermoregulation anti freeze setpoint as evaporator protection function 6 Compressors switched off in case of only production of sanitary hot water 49 2 Alarm Circuit Alarm Alarm Code Alarm description Compressors of the circuit n Compressors of the other circuit Fan condensing of the circuit n F...

Page 123: ...reeze circuit n message in heat pump n identifies the circuit 1 or 2 49 3 Alarm Compressor Alarm Alarm Code Alarm description Compressor n Compressors not involved C n HP Compressor n high pressure switch Yes C n oP Compressor n oil pressure switch Oil level switch Yes C n tr Compressor n overload Yes C n dt Compressor high discharge temperature Yes C n Pd Compressor oil differential Yes C n dS Co...

Page 124: ...Temperature probe NTC for evaporator inlet 1 Temperature probe NTC for evaporator outlet 1 2 Temperature probe NTC for evaporator outlet 2 3 Temperature probe NTC for common evaporator outlet 4 Temperature NTC probe from remote panel 1 5 Temperature NTC probe from remote panel 2 0 5 ST 10 Thermoregulation probe selection in heat pump 0 Temperature probe NTC for evaporator inlet 1 Temperature probe...

Page 125: ...logue input functioning 0 Temperature pressure NTC 4 20 mA The condensing temperature is controlled with NTC probe while for the evaporating pressures of the circuits 1 and 2 and the pressure probe configured as auxiliary output 1 and 2 are controlled with 4 20mA transducers 1 Pressure control with 4 20 mA To control the evaporating and condensing pressures it is necessary a 4 20mA transducer 2 Te...

Page 126: ... 5 Vdc of the PB6 transducer 0 0 50 0 725 Bar psi Dec int CF 35 Pressure value at 20mA or 5 Vdc of the PB6 transducer 0 0 50 0 725 Bar psi Dec int Digital Inputs CF 36 Configuration of ID1 0 c73 CF 37 Configuration of ID2 0 c73 CF 38 Configuration of ID3 0 c73 CF 39 Configuration of ID4 0 c73 CF 40 Configuration of ID5 0 c73 CF 41 Configuration of ID6 0 c73 CF 42 Configuration of ID7 0 c73 CF 43 C...

Page 127: ...e cooling valve 3 Not used 4 Auxiliary output 0 10V n 1 5 Auxiliary output 0 10V n 2 6 Proportional output for inverter compressor 1 circuit1 7 Proportional output for inverter compressor 2 circuit 2 Relay driver ON OFF 0 o 1 7 C47 Remote keyboard CF 74 Remote keyboard 1 configuration 0 Not enabled 1 Enabled model with ambient temperature sensor 2 Enabled model without ambient temperature sensor 0...

Page 128: ...t summer offset analog 1 30 0 54 30 0 54 C F Dec int Sd 8 Dynamic set point winter offset analog 1 30 0 54 30 0 54 C F Dec int Sd 9 Summer outside temperature analog 1 30 22 70 0 158 C F Dec int Sd 10 Winter outside temperature analog 1 30 22 70 0 158 C F Dec int Sd 11 Summer outside temp differential analog 1 30 0 54 30 0 54 C F Dec int Sd 12 Winter outside temp differential analog 1 30 0 54 30 0...

Page 129: ...the Time band 2 Sanitary water 0 24 0 24 00 Hr 10 Min ES 22 End of the Time band 2 Sanitary water 0 24 0 24 00 Hr 10 Min ES 23 Start of the Time band 3 Sanitary water 0 24 0 24 00 Hr 10 Min ES 24 End of the Time band 3 Sanitary water 0 24 0 24 00 Hr 10 Min ES 25 Monday Sanitary water 2 nd set point activation 0 7 ES 26 Tuesday Sanitary water 2 nd set point activation 0 7 ES 27 Wednesday Sanitary w...

Page 130: ... 0 Circuit saturation 1 Circuit balancing 0 1 Evaporator water pump CO 16 Operative mode of the evaporator pump supply fan See Evaporator pump function 0 Not enabled evaporator pump or supply fan 1 Continuous When the unit is running in Chiller or HP the pump or the supply fan is running 2 With compressor When a compressor is running also the pump or the supply fan is running 0 2 CO 17 ON compress...

Page 131: ...fter the unloading function start only for capacity compressor 0 250 Sec Compressor liquid injection CO 51 Setpoint of the solenoid valve on of the liquid injection 0 0 150 302 C F Dec int int CO 52 Setpoint of the solenoid valve off of the liquid injection 0 0 0 25 0 45 C F Dec int Management resource in neutral zone CO 53 Maximum time of work in neutral zone without insert resource 0 250 Min 10 ...

Page 132: ...defrost 0 100 CO 95 Free cooling water pump operation time to generate maintenance warning 0 999 10 Hr 10 Hr CO 96 output of the inverter compressor in unloading 0 100 Auxiliary relay menu function Auxiliary relay of the circuit 1 US 1 Auxiliary relay 1 operating mode See graph and auxiliary relay functions 0 Not enabled 1 Always available with direct action 2 Available only when the unit is on wi...

Page 133: ... 0 4 US 23 Analogue input configuration for auxiliary control 1 Allows to select which probe value Pb1 Pb10 controls output 1 10 US 24 Analog output 1 summer minimum set point 30 0 22 0 0 0 US26 C F Bar Psi Dec int Dec int US 25 Analog output 1 summer maximum set point US26 70 0 158 50 0 725 C F Bar Psi Dec int Dec int US 26 Analog output 1 summer set point US24 US25 C F Bar Psi Dec int Dec int US...

Page 134: ...nt US 50 Proportional band for maximum speed of modulationg evaporator water pump in chiller 0 0 0 0 0 0 25 0 45 14 0 203 C F Bar Psi Dec int Dec int US 51 Minimum speed of the evaporator water pump in chiller 0 100 US 52 Maximum speed of the evaporator water pump in chiller 0 100 US 53 Probe 1 selection for evaporator water pump modulation in Heat Pump 0 10 US 54 Probe 2 selection for evaporator ...

Page 135: ...int Dec int FA 12 Proportional speed control FA01 4 CUT OFF differential in chiller To set a temperature pressure differential to stop the fan ON OFF regulation FA01 2 3 Differential step circuit n 2 0 0 0 0 0 0 25 0 45 14 0 203 C F Bar Psi Dec int Dec int FA 13 Over ride CUT OFF in chiller To set a temperature pressure differential to keep the minimum fan speed 0 0 0 0 0 0 25 0 45 14 0 203 C F Ba...

Page 136: ...for antifreeze in Chiller mode 0 1 0 25 0 45 C F Dec Int Ar 3 Set Anti freeze heaters integration heating setpoint for air air unit in HP mode To set a temperature value below this value the anti freeze relay is activated 30 0 22 70 0 158 C F Dec int Ar 4 Regulation band for antifreeze in HP mode 30 0 22 70 0 158 C F Dec int Ar 5 Antifreeze heaters integration heating in defrost 0 ON only with the...

Page 137: ...6 Set point starting water pump in antifreeze alarm 30 0 22 70 0 158 C F Dec int Ar 27 Differential starting water pump in antifreeze alarm 0 1 0 25 0 45 C F Dec int Defrost Parameter Description min max udm Risoluzione dF 1 Defrost configuration 0 Not enabled 1 Start and stop for temperature pressure 2 Start depends on probe selected by par dF24 and stop for time duration dF05 3 Start depends on ...

Page 138: ...th evaporator pressure probe 0 3 Supply fan operating mode during defrost cycle dF 25 Stop supply fan diuring defrost cycle 0 Not enabled 1 enable 0 1 Defrost only with condenser fan dF 26 Set point to enable defrost with condenser fan 30 0 22 70 0 158 C F Dec int Hybrid exchangers dF 27 Hybrid exchangers set point 1 in chiller 50 0 58 0 0 0 70 0 158 50 0 725 C F bar psi Dec int Dec int dF 28 Hybr...

Page 139: ...compressors 0 3 FS 9 Operation working time to activate the heaters during the sanitary water thermoregulation 0 250 Min FS 10 Time delay to activate the sanitary water valve 0 250 sec int FS 11 Reversing cycle delay during sanitary water thermoregulation 0 250 sec int FS 12 Antilegionella function operating mode 0 interval time 1 weekly 2 daily 0 2 FS 13 Delay time between two Antilegionella cycl...

Page 140: ...ater 0 when all compressors are requested 1 when at least one compressor is requested 0 1 FS 50 Set point to force OFF the compressors during antilegionella cycle 50 0 58 70 0 158 C F FS 51 Compressors safety time in sanitary water 0 safety time enabled 1 safety time disabled 0 1 FS 52 Set point to enable heaters for low sanitary water temperature 50 0 58 70 0 158 C F FS 53 Proportional band to en...

Page 141: ...tion 0 250 Sec AL 16 Flow switch time activation before blocking evaporator water pump 0 250 Sec AL 17 Flow switch supply fan overload activation time to generate the alarm 0 250 Sec AL 18 Flow switch supply fan overload de activation time to reset the alarm 0 250 Sec Compressor overload alarm AL 19 Compressor overload alarm delay after compressor start up 0 250 Sec AL 20 Maximum number of compres...

Page 142: ... condition The detected temperature must be lower than AL33 for the time AL36 before giving the alarm 0 250 Sec AL 37 Maximum number of anti freeze alarm events for low air ambient temperature or low outlet air temperature in heat pump It sets the alarm reset condition Always manual reset AL37 0 Always automatic reset AL37 16 From automatic to manual reset if AL37 1 15 0 16 AL 38 Anti freeze alarm...

Page 143: ...ow switch delay to stop pump 0 250 Sec AL 67 Sanitary water flow switch activation time 0 250 Sec AL 68 San water flow switch de activation time 0 250 Sec AL 69 Solar panel flow switch alarm delay 0 250 Sec AL 70 Solar panel flow switch delay to stop pump 0 250 Sec AL 71 Solar panel flow switch activation time 0 250 Sec AL 72 Solar panel flow switch de activation time 0 250 Sec Various configurati...

Page 144: ...of 149 AL 86 Flow switch alarm reset mode 0 Always manual 1 automatic reset after 1 minute 2 automatic reset after 2 minutes 250 automatic reset after 250 minutes 0 250 AL 87 Evaporator sanitary water flow switch by pass time during Out1 Out2 commutation 0 250 Sec ...

Page 145: ...TALLING AND MOUNTING 52 1 ICHILL 200 L FORMAT PANEL CUT OUT The instrument must be mounted on vertical panel with panel cut out 150x31mm and screwed 2 screws 3 x 2mm in between distance 165mm The IP65 can be reached with the gasket RG L opzionale The ambient working temperature range should be between 0 60 C Avoid locations subject to heavy vibration corrosive gases or excessive dirt The same appl...

Page 146: ... the measure showed in the figure below are expressed in mm 52 4 VERTICAL BOARDS VI620 PANEL CUT OUT The remote terminals are for panel mounting panel cut out 72x56 mm and screwed with two screws The IP65 can be reached with the gasket RGW V optional WALL MOUNTING use the vertical V KIT black white and grey as described in the following scheme ...

Page 147: ...terface outputs 3 ways connector for keyboard VGI890 to be connected with cable CABC3J30 The LW30 KIT is the complete kit with MOLEX 3 mt wires already connected and the STELVIO terminals Check the connecitons and the line voltage before turning on the power supply Keep low voltage cables far from power cables and terminals to prevent Respect the maximum load current of each relay output in case o...

Page 148: ...2 PWM input control B 3 4 PWM output repetition signal F Phase N Neutral 5 6 Fan output Terminals 3 and 4 allows to connect another board in parallel to control two separate fans with the same input control Terminals 1 2 3 4 are for screw for a 2 5mm wire Terminals 5 6 F N are 6 3mm faston Transformer The standard power supply is 12 volt AC DC or 24 volt AC DC optional Trasnformer models 230 12 Va...

Page 149: ...d p Connections Removable screw terminal block 2 5mm2 Power supply 12Vac dc 10 l 15 or 24 Vac dc 10 50 60 Hz Power absorption 10VA max Probes 6 temperature probes NTC PTC 4 temperature or pressure probes NTC PTC 4 20ma 0 5Volt Digital inputs 18 free voltage Relay outputs 10 IC260D L or 14 IC261D L SPDT 5 2 A 250Vac Data storing on the non volatile memory EEPROM Operating temperature 10 55 C Storag...

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