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Emerson Dixell iChill IC200D EVO Series, Installing And Operating Instructions

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Emerson Dixell iChill IC200D EVO Series Installing And Operating Instructions Download Page 73

 

1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 

 

IC200D 

73/192 

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 the other one is switched on. 
 

27. 

CYCLIC OPERATION OF THE WATER PUMPS 

If the water pump is OFF (reached set point), is possible to enable it to run to detect the right water 
temperature. 
At the end of the ON time, the controller verify if is necessary to switch on the compressor/s or not; if is not 
necessary, the water pump is switched OFF for CO85 time and then switched on for another CO87 ON 
cycle. 
 

 

 
 

Parameters  

Description 

min 

max 

unit 

of 

measure 

CO 85 

Evaporator water pump OFF time if the set point is reached 

0 

250 

10 min 

CO 86 

Evaporator water pump OFF time if the machine is STD-BY or 
OFF 

0 

250 

10 hour 

CO 87 

Evaporator water pump ON time 

0 

250 

10 Sec 

CO 88 

Condenser water pump OFF time if the set point is reached 

0 

250 

10 min 

CO 89 

Condenser water pump OFF time if the machine is STD-BY or 
OFF 

0 

250 

10 hour 

CO 90 

Condenser water pump ON time 

0 

250 

10 Sec 

 
 
 

28. 

HOT START 

In the air air unit and in heating mode it is possible to stop the supply fan when the outlet evaporator 
temperature falls below FA24 degrees. 
 

FA24 

Hot start Setpoint 

FA25 

Hot start differential 

 

 

 

29. 

LOAD MAINTENANCE 

It is possible to define for each load (compressors and water pumps) the number of working hours after witch 
the display will show a maintenance warning. 

Summary of Contents for Dixell iChill IC200D EVO Series

Page 1: ...IC200D EVO rel firmware 4 3 ...

Page 2: ...MP SELECTION 52 14 COMPRESSOR REGULATION 53 15 COMPRESSORS MANAGEMENT 56 16 COMPRESSOR INVERTER CONTROLLED 59 17 COMPRESSOR RACK 63 18 COMPRESSORS WITH DIFFERENT CAPACITY POWER 63 19 CIRCUIT MANAGEMENT SATURATION OR BALANCING 64 20 MAXIMUM OPERATION TIME OF THE COMPRESSOR 64 21 PUMP DOWN 64 22 UNLOADING 66 23 SOLENOID VALVE FOR LIQUID INJECTION 68 24 CONDENSING UNIT OPERATION 68 25 EVAPORATOR WATE...

Page 3: ... FUNCTION 109 44 OPERATION RELATED TO THE REAL TIME CLOCK 110 45 MESSAGES ALARM CODES 110 46 MANUAL ALARM PROCEDURE 129 47 ALARMS LIST 130 48 ICHILL ANALOG AND DIGITAL OUTPUT CONFIGURATION 134 49 I O EXPANSION ANALOG AND DIGITAL OUTPUT CONFIGURATION 139 50 PARAMETERS LIST 144 51 WIRING CONNECTIONS 168 52 I O EXPANSION CONNECTION 179 53 IEV ELECTRONIC EXPANSION VALVE CONNECTION 181 54 I O EXPANSION...

Page 4: ...or intertwining Fit the probe where it is not accessible by the end user In case of applications in industrial environments the use of mains filters our mod FT1 in parallel with inductive loads could be useful The symbol alerts the user of non insulated dangerous voltage within the product area that is sufficiently high to constitute a risk of electric shock to persons The symbol alerts the user o...

Page 5: ... NTC PTC configurable configurable 3 NTC PTC 0 5V 4 20mA configurable configurable PROPORTIONAL OUTPUTS 2 0 10V or PWM outputs configurable configurable 1 0 10V configurable configurable OTHER OUTPUTS TTL Output for remote keyboard LAN POWER SUPPLY 12 Vac dc 15 10 24 Vac dc 10 opt opt OTHERS Internal real time clock opt opt Buzzer opt opt configurable the function is configurable by parameter opt ...

Page 6: ...n menu indicates the defrost delay counting General alarm blinking in case of alarm Domestic hot water ON when domestic hot water production is active Vset Dynamic Set point ON dybnamic set point or Energy saving are active Anti freeze heaters integration heating boiler ON if the heaters are switched ON Water flow alarm supply fan overload air air unit blinking in case of water flow alarm or suppl...

Page 7: ...he Ichill is swithed ON in cooling or heating FC ON when the free cooling is active ON in defrost Blinking during defrost activation delay 3 2 UPPER LOWER DISPLAY CUSTOMIZATION It is possible to select wich probe has to be visualized on the upper lower display 3 3 MAIN DISPLAY UPPER DISPLAY Parameter dP01 PARAMETER VALUE DESCRIPTION CORRESPONDING LABEL 0 no visualization No label 1 evaporator wate...

Page 8: ... SAn2 15 solar panel temperature SoLE 16 Recovery temperature rEC 17 condenser temperature Cdt1 circuit 1 Cdt2 circuit 2 3 4 SECONDARY DISPLAY LOWER DISPLAY Parameter dP02 PARAMETER VALUE DESCRIPTION CORRESPONDING LABEL 0 no visualization No label 1 evaporator water inlet temperature Ein 2 evaporator water outlet 1 and 2 temperature Out1 circuit 1 Out2 circuit 2 3 common evaporator water outlet te...

Page 9: ...let temperature label Out2 dP03 2 Top display Condenser 1 water inlet temperature label CIn1 or Condenser 2 water inlet temperature label CIn2 Bottom display Condenser 1 water outlet temperature label COu1 or condenser 2 water outlet temperature label COu2 dP03 3 Top display of the circuit 1 Condenser temperature Cdt1 pressure CdP1 or Condenser temperature Cdt2 pressure CdP2 Bottom display of the ...

Page 10: ...e display swows On when the digital input is not active the display shows OFF and a digital input has to be configured as regulation request in case of heating request by key the display shows OnH in STD BY the display swows On when the digital input is not active the display shows OFF 3 9 DISPLAY VISUALIZATION IN REMOTE OFF Digital input configured as remote ON OFF the active input sets the unit ...

Page 11: ... SetH Push once again In chiller or heat pump if the Energy saving or the Dynamic setpoint are enabled it shows the real setpoint Setr Push for 3 seconds Set point modification During the programming push once To enter parameter modification or confirm a value Push when an alarm is showed in menù ALrM To reset the alarm Push once with probe label showed on the bottom display press up or down start...

Page 12: ...g from CF58 parameter Push once To enter the function Menu Push for 3 seconds To set the clock controller with clock on board Pushing once during the programming To exit from a group of parameter 3 13 KEY COMBINANTION KEY ACTION FUNCTION Push for 3 seconds together Enter the programming parameters Only in Pr3 level push SET and DOWN key Select the parameter level visibility Pr1 Pr2 Pr3 Push once t...

Page 13: ...tes 0 60 UdAy day of the week Sun Sunday Mon Monday tuE Tuesday UEd Wednesday tHu Thursday Fri Friday SAt Saturday dAy day of the month 0 31 MntH month 1 12 yEAr year 00 99 6 PARAMETER PROGRAMMING 6 1 PROGRAMMING WITH THE HOT KEY 64 Download how to program an instrument with a programmed Hot Key 6 1 1 1 Power off the instrument 2 Insert the hot key already programmed by software Wizmate or other i...

Page 14: ... can be showed but not changed Enter the Pr1 Pr2 Pr3 programming levels 6 2 2 Pr1 LEVEL Push SET DOWN together for 3 seconds the top display shows the PAS label and the bottom display shows the Pr1 label The leds cir1 cir2 are blinking up and down leds to inform that you now are in PR1 programming level Pr2 LEVEL From the Pr1 level push the UP key for 2 seconds and the bottom display will show Pr2...

Page 15: ... Pr2 password Push SET and if the value is correct top display will show the first family of parameters ALL Otherwise set the password again 4 Select a parameter family with DOWN or UP keys 5 Push SET to enter the bottom display shows the first available parameter label while the top display shows its value The user can shows and modify all the paramters belonging to this family Parameter status l...

Page 16: ...e 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 to pass to Pr1 starting from a family label To exit completely the programming push SET UP How to change a parameter value 6 2 6 Enter the programming 1 Push the SET DOWN keys together fo...

Page 17: ...ide the parameter in Pr1 1 Keep pushed SET key 2 Push 1 time the DOWN key and the led 3 should be off the parameter is now removed from Pr1 Move a parameter from Pr3 to Pr2 to Pr1 6 2 9 Enter Pr3 programming level here the parameter are all visible Select the parameter if all the leds are off the parameter is available only in Pr3 To show the parameter also in Pr2 and Pr1 1 Keep pushed SET key 2 P...

Page 18: ...d as digital input are composed by a letter and a number Letter can be o open function associated to the input or output is active when the contact is open c close function associated to the input or output is active when the contact is closed The number defines the function associated to the input or output Example 1 The bottom display shows the parameter label CF36 digital input 7 configuration ...

Page 19: ...ator temperature the lower display shows Out2 Pressing SET key is possible to read the same probe of the first circuit Fig 2 8 SET POINT VISUALIZATION 8 1 READ SET POINT VALUE Push and release the SET key the leds of the circuits are off and the set value is displayed In stand by the bottom display shows SetC set chiller by pushing SET again the next label is SetH set heat pump If the unit is runn...

Page 20: ...2 disabled label c2ds compressor 3 disabled label c3ds compressor 4 disabled label c4ds compressor 5 disabled label c5ds compressor 6 disabled label c6ds 9 FUNCTION MENU M KEY The function Menu is composed of the following items Read and reset the alarms ALrM Read and reset the alarm log ALOG Upload the parameter into the Hot Key UPL Enable disable one or the two circuits CrEn Enable disable one o...

Page 21: ...ttom shows PAS Insert the password using UP or DOWN key If the password is OK the ArSt blinks for per 3 seconds if the password value is not correct the top display blinks 0 while the bottom shows PAS If within 5 seconds no value is inserted the display label come back to CO1r function 6 To exit the COtr function push MENU or wait the timeout 7 Repeat operation 1 5 to reset the other alarms By par...

Page 22: ...NOT ENABLED If one circuit is disabled the bottom display shows diS alternated with the label name of the measurement selected Circuit 1 diS the bottom display shows b1dS circuit 1 disabled Circuit 2 diS the bottom display shows b2dS circuit 2 disabled 9 7 ENABLE OR DISABLE A SINGLE COMPRESSOR COEn FUNCTION Label involved in COEn function CO1E Compressor 1 status CO6E Compressor 6 status The COEn ...

Page 23: ...ter pump running hours CP1H Condenser water pump running hours CP2H Support condenser water pump running hours SAPH Domestic hot water pump running hours PAPH Solar panel water pump running hours FCPH Free cooling water pump running hours The labels are displayed only if the corresponding output is present and configured The running hours is displayed on the top display the resolution is x 10 hour...

Page 24: ... IC200D outputs Pou1 Proportional OUT 1 value Pou2 Proportional OUT 2 value Pou3 Proportional OUT 3 value ICX207D outputs I O expansion PoE1 Proportional OUT 1 value PoE2 Proportional OUT 2 value PoE3 Proportional OUT 3 value The labels are displayed only if the corresponding output is configured HOW TO SEE THE FOUR OUTPUT PERCENTAGE Enter the function menu 1 Use the UP or DOWN keys to select Pout...

Page 25: ...be or uSt2 auxiliary 2 probe 4 To exit the Hour function push MENU key or wait the timeout 9 20 HOW TO DISPLAY THE TEMPAERATURE OF THE INTERNAL TEMPERAURE SENSOR OF THE REMOTE TERMINAL 1 OR 2 Inside the funcion menu it is possible to see the ambient temperature detected by the NTC sensor FUNCTION trEM to show the temperature of the remote panels Identification label trEM trE1 value of the NTC prob...

Page 26: ...22 HOW TO ENABLE DISABLE RECOVERY FUNCTION FUNCTION rEC enable disable recovery function o lower display shows En diS o press SET key for some seconds o En diS blinks o Press arrow keys to modify the status enable or disable o press SET key to confirm o by pressure of arrow keys it is possible to read the status of recovery valves rEC1 or rEC2 depending on the circuit 10 DISPLAY VISUALIZATION OF V...

Page 27: ... for compressor 6 discharge 7 Temperature probe PTC for solar panel 8 Temperature probe NTC for evaporator inlet 9 Temperature probe NTC for evaporator 1 outlet 10 Temperature probe NTC for evaporator 2 outlet 11 Temperature probe NTC for common evaporator outlet 12 Temperature probe NTC for common hot water condenser recovery inlet 13 Temperature probe NTC for hot water of the condenser recovery ...

Page 28: ... setpoint probe 4 20 mA 35 Compressor 1 or circuit 1 pressure probe 36 Compressor 2 or circuit 2 pressure probe 37 Internal temperature of the Visograph 2 0 remote terminal sensor mounted internally 38 Remote temperature of the Visograph 2 0 remote terminal external sensor 39 Internal humidity of the Visograph 2 0 load function status as showed below Compressor s blinking during the start up delay...

Page 29: ...f the Ichill is in heating mode cooling and hating set point if the Ichill is in STD_BY or remote OFF Domestic hot water when enabled It is also possible to read the status of the Energy saving the status of the Dynamic set point and the real value of the set point if the Energy saving or Dinamic set point are active To modify the set point Cooling Heating or Domestic hot water press or to select ...

Page 30: ...oad alarm o press o press o press or to insert the password value parameter AL46 o press to confirm the operation 10 6 MENU SERVICE Pressing it is possible to read the following information Parameter programming Programming clock Energy saving and ON OFF scheduling Compressor maintenance It is possible to disable the compressor for maintenance read the working hours and number of start up and rese...

Page 31: ...ter map with Hot Key Visograph configuration It is possible to read the Ichill firmware version for the compatibility with the keyboard the keyboard firmware release and keyboard bin release It is possible to change the language to set the contrast and the backlight Parameters programming Pressing it is possible to read modify the parameters value select the level 1 default or level 2 or level by ...

Page 32: ...0 11 2015_rev10 IC200D 32 192 Pressing or it is possible to select the group of parameters to modify then press How to modify the value of the parameter press or to select the parameter to modify press press or to modify the value press to confirm ...

Page 33: ...and read the Energy saving and the ON OFF scheduler How to set the clock o press or to select the date to modify hour minutes date o press o press or to modify the value o press to confirm Pressing or it is possible to read the information about the Energy saving and ON OFF scheduling To modify the hour of the time band and to enable the function is necessary to enter the parameter programming ES ...

Page 34: ...compressor working hour and the number of activations It is also possible to disable the compressor for maintenance Pressing it is possible to enter on the visualization of the working hour and number of start up of each compressor How to reset working hours and number of switching on o press or keys to select RST o press RESET o press SET ...

Page 35: ...or 5 seconds to confirm the operation Water pump maintenance How to reset working hours o press or keys to select RST o press RESET o press SET o write the PASSWORD o press SET o press ENTER Circuit maintenance Press to disable the circuit for maintenance all the compressor will be switched off after disabling the circuit How to disable a circuit o press or to select the circuit to disable o press...

Page 36: ... possible to reset it Manual reset of all alarms press to reset all the alarms only the alarms that are not active Manual reset procedure o press or to select the alarm o press to reset the alarm In case of compressor overload alarm when the password is requested operate in this way press o to select the compressor overload alarm press press press or to insert the password value parameter AL46 pre...

Page 37: ...ossible to read the status of the defrost the condenser pressure the suction pressure the defrost start temperature pressure and the defrost end temperature pressure Press or to select the circuit 1 or circuit 2 then press If the combined defrost is enabled press or to read the probe value and the set point ...

Page 38: ...GB rel1 0 10 11 2015_rev10 IC200D 38 192 Solenoid valve It is possible to read the status of the electrical heaters and the pump down valve I O status Press or to select the digital input analog output analog input or relays then press ...

Page 39: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 39 192 Probes visualization Analog output status ...

Page 40: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 40 192 Digital input status Relay status visualization ...

Page 41: ...t To read the discharge temperature the status of the liquid injection valve and the status of the minimum load start up valve press or to select the circuit 1 or circuit 2 press to visualize the discharge temperature the status of the liquid injection valve and the status of the minimum load start up valve of the compressor 1 press or to visualize the information of the next compressor if configu...

Page 42: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 42 192 Auxiliary output status ...

Page 43: ..._rev10 IC200D 43 192 Auxiliary output status Heat recovery and domestic hot water Press or to select Domestic hot water or Heat recovery Domestic hot water Press or to read the information of the domestic hot water regulation antilegionella and solar panel ...

Page 44: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 44 192 Hot recovery Solar panel and free cooling ...

Page 45: ...by Download procedure Insert the Hot Key 64 into the 5 ways connector through the hole at the top of the Ichill see image below Select Download from HotKey to device Press ENTER if the operation was successful the display shows OK otherwise shows ERR Upload from Ichill to Hot Key 64 Upload procedure Insert the Hot Key 64 into the 5 ways connector through the hole at the top of the Ichill see image...

Page 46: ... possible the activation time of the backlight o language selection o information about o Ichill firmware release to verify the compatibility Ichill Visograph keyboard o Visograph keyboard firmware release o Visograph keyboard bin release How to modify the configuration o press or to select the configuration to change o press o press or to change the configuration o press to confirm ...

Page 47: ...about the circuit compressor status unloading status evaporating condensing probes water pump supply fan status condenser fan status Load status visualization Compressor OFF Compressor ON Condenser fan OFF step regulation Condenser fan ON step regulation Condenser fan OFF proportional regulation Condenser fan ON proportional regulation ...

Page 48: ...User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 48 192 Water pump OFF Water pump ON Supply fan OFF Supply fan ON Press or to select the information to read then press Compressors status ON OFF compressor ...

Page 49: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 49 192 Inverter compressor Unloading status Evaporating condensing probe ...

Page 50: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 50 192 Evaporator pump status Supply fan status Condenser pump status ...

Page 51: ... key allows to start in heat pump mode if CF58 0 in chiller if CF58 1er When the unit is running the corresponding led is on INPORTANT To change from chiller to heat pump and viceversa the unit must be set in stand by before continuing STAND BY OR UNIT OFF NOT RUNNING The unit is considered in stand by when the leds and are both off The stand by is reached each time the Chiller or the Heat Pump ar...

Page 52: ... activated 12 2 DIGITAL INPUT CONFIGURED AS CHILLER REQUEST The machine has to be configured as condensing unit CF03 1 If the digital input is not active the unit is on stand by and the display shows OFF If the digital input is active the unit is on in cooling and the display shows OnC With active contact if the unit is being switched off by keyboard it can be switched on by keyboard If the unit i...

Page 53: ...ontrol from probe function is enabled it represents the limit temperature of the probe value under which the unit runs the Heat Pump mode CF61 Change over Differential If the analogue input control from probe function is enabled it represents the limit differential temperature of the probe value to restart in the Chiller mode For external air temperature within CF81 the user can manually change th...

Page 54: ...2 outlet temperature 3 common evaporator outlet temperature 4 remote terminal 1 internal probe VICX610 keyboard or Visograph 2 0 internal temperature probe 5 remote terminal 2 internal probe VICX610 keyboard or Visograph 2 0 remote temperature probe St10 Regulation probe in heat pump 0 evaporator inlet temperature 1 evaporator 1 outlet temperature 2 evaporator 2 outlet temperature 3 common evapora...

Page 55: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 55 192 Heating regulation 14 4 NEUTRAL ZONE REGULATION Compressor regulation in chiller ...

Page 56: ...ted Par CO54 Maximum time of work in neutral zone without 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 15 COMPRESSORS MANAGEMENT 15 1 COMPRESSORS START UP T...

Page 57: ...apacity compressors 15 1 4 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 time delay the step valve is forced on minimum power When the C013 is expire...

Page 58: ...is ON if the Ichill is ON and at set poiont reached 25 valve is OFF if the Ichill is STD BY or OFF CO06 2 inverse action Eg compressor with 3 capacity step 0 of request 25 of equest 50 of request 75 of equest 100 of request Compressor relay OFF ON ON ON ON Capacity step 1 ON ON ON ON OFF Capacity step 2 OFF ON ON OFF OFF Capacity step 3 OFF ON OFF OFF OFF If CO07 2 o CO07 3 screw compressor 25 val...

Page 59: ...OLLED The signal 0 10V is given by one of 4 configurable outputs of the Ichill OUT1 OUT4 The compressor inverter controlled can be used only with proportional regulation parameter St11 0 Possible unit configuration 1 circuit 1 compressor inverter controlled 1 circuit 1 compressor inverter controlled and maximum 2 ON OFF compressor managed by relay 2 circuits 1 compressor inverter controlled per ci...

Page 60: ...192 COMPRESSOR INVERTER CONTROLLED OPERATING MODE CHILLER At the start up the compressor is forced to work at CO61 speed for CO60 seconds COMPRESSOR INVERTER CONTROLLED OPERATING MODE HEAT PUMP At the start up the compressor is forced to work at CO61 speed for CO60 seconds ...

Page 61: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 61 192 TWO COMPRESSORS INVERTER CONTROLLED OPERATING MODE CHILLER TWO COMPRESSORS INVERTER CONTROLLED OPERATING MODE HEAT PUMP ...

Page 62: ...alue of the compressor 1 inverter controlled CO67 100 CO69 Minimum value of the compressor 2 inverter controlled 0 CO70 CO70 Maximum value of the compressor 2 inverter controlled CO69 100 CO71 Delay to increase decrease the power of the compressori inverter controlled 1 250 sec CO79 Maximum speed of the inverter compressors in chiller 1 100 CO80 Maximum speed of the inverter compressors in heat pu...

Page 63: ...Cr08 It is possible to choose the number of condenser fan steps the controller can use in case of faulty probe the parameter involved is Cr09 The Energy Saving function in case of compressor rack unit has dedicated set point and differential parameter Cr06 Energy saving offset for compressor rack unit Cr07 Energy saving differential for compressor rack unit 18 COMPRESSORS WITH DIFFERENT CAPACITY P...

Page 64: ...AXIMUM OPERATION TIME OF THE COMPRESSOR In the event that in a circuit there are more compressors but only one is switched on after the operation time CO72 the compressor is switched off and another compressor according on the configuration in function of operating hours or number of switching on is turned on CO72 Tempo massimo di funzionamento continuativo compressore 0 250 Min CO98 Simultaneous ...

Page 65: ... Before turning off the last compressor the solenoid valve is closed the compressor works until the pressure falls below CO37 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...

Page 66: ...le to use this function if there are at least 2 steps of power two compressor or 1 compressor with partialization for every circuit or with inverter compressor UNLOADING ACTIVATION When the evaporator water inlet temperature is higher than CO40 for CO42 time the unit works with the number of compressors selected in CO49 parameter or CO96 speed in case of inverter compressor EXAMPLE 2 circuits and ...

Page 67: ...rease over CO46 CO47 the unloading function is disabled and all compressor are available to work Other information about the Unloading in Heat Pump If the evaporator probe or condenser pressure or condenser temperature remains between CO46 and CO46 CO47 after CO48 time the unloading function is deactivated 22 3 LOW TEMPERATURE OF THE EVAPORATOR WATER OUTLET ACTIVATION The lower value between the i...

Page 68: ...ch compressor 24 1 OPERATION WITH DIGITAL INPUT CONFIGURED AS REGULATION REQUEST Digital input configured as regulation request if the contact is NOT ACTIVE the unit is in stand by and the upper display shows OFF if the contact is ACTIVE the unit is ON and the upper display shows On if the unit is in std by by keyboard or OnC if it is in chiller or OnH if it is in heat pump The operation mode cool...

Page 69: ...ompressors with capacity step digital input configured for a non existing compressor etc is generated alarm ACF4 configuration Setting for operation with a digital input configured as compressor request Configure the digital input with the following values depending on the number of compressors o A digital input o78 or c78 compressor 1 o A digital input o79 or c79 compressor 2 o A digital input o8...

Page 70: ...er pump supply fan is ON only if the unit is running chiller or heat pump When the Ichill is switched on in chiller or heat pump the water pump is immediately activated and the first compressor is switched on after CO17 delay When the Ichill is in STD BY or remote OFF the water pump is OFF with a delay if CO18 0 The parameter Ar09 allows to set the status of the water pump in case of antifreeze if...

Page 71: ...minutes then it is switched off If the state of the water pump is not tied to the state of the compressor when last compressor is switched off the water pump is forced to run at US60 speed The regulation is done as showed below Chiller and chiller domestic hot water machine with valves OUt1 and OUT2 in the gas circuit Parameter Description min max udm US 47 Probe 1 selection for evaporator water p...

Page 72: ...the Ichill is switched on in chiller or heat pump the water pump is immediately activated and the first compressor is switched on after CO17 delay When the Ichill is in STD BY or remote OFF the water pump is OFF with a delay if CO23 0 The parameter Ar09 allows to set the status of the water pump in case of antifreeze if the Ichill is in stand by CO21 2 on compressor demand The water pump is ON onl...

Page 73: ...CO87 ON cycle Parameters Description min max unit of measure CO 85 Evaporator water pump OFF time if the set point is reached 0 250 10 min CO 86 Evaporator water pump OFF time if the machine is STD BY or OFF 0 250 10 hour CO 87 Evaporator water pump ON time 0 250 10 Sec CO 88 Condenser water pump OFF time if the set point is reached 0 250 10 min CO 89 Condenser water pump OFF time if the machine i...

Page 74: ...the fans work following the same output algorithm Par FA01 1 Par FA02 1 Independent from the compressor status but off in stand by Par FA01 2 Par FA02 0 Fans on with ON OFF 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 2 Par FA02 1 Fans on...

Page 75: ...AN CONTROL When the condenser fan is switched on it works at maximum speed for FA03 time then it modulate according to condenser pressure temperature or evaporator pressure heat pump mode FA04 parameter allows to adapt the 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...

Page 76: ...015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 76 192 Condenser fan in Heat pump mode 30 5 ON OFF REGULATION OF CONDENSER FANS Condenser fan in Chiller mode Condenser fan in Heat pump mode ...

Page 77: ...moment is forced at FA33 speed for FA31 seconds outside temperature probe is required 30 7 CONDENSER FAN IN DEFROST During defrost the condenser fan regulate as shown below The basic adjustment is that of the operation in chiller with the following differences the threshold temperature pressure for enabling the fan is determined by parameter dF18 Once the fan is started the modulation occurs betwe...

Page 78: ...t 2 and viceversa Par Ar07 3 function enabled the regulation probe are evaporator water outlet circuit 1 evaporator water outlet circuit 2 or evaporator common probe Par Ar07 4 function enabled the regulation probe is outside temperature ANTI FREEZE HEATERS INTEGRATION HEATING BOILER HEATERS DURING THE DEFROST CYCLE The Ar05 parameter allows to choose the operation mode of the heaters during the d...

Page 79: ...n 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 external air temperature is still under the Ar12 setpoint if the ...

Page 80: ...ivated 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 32 3 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 parameter family 2 Select the parameters ES07 Monday ES13 Sunday Configuration table Ene...

Page 81: ...nabled in time band 1 and time band 2 the automatic on is enabled in time band 1 time band 2 and time band 3 WEEKLY PROGRAMMING Repeat the daily programming for the other days of the week using parameters ES08 ES13 32 4 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 ...

Page 82: ...n chiller mode the parameter Sd01 is not equal to 0 In heat pump mode the parameter Sd02 is not equal to 0 A analog input is configured as 4 20mA for dynamic setpoint control or outside temperature 33 1 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 temperatu...

Page 83: ... the regulation of the auxiliary relay please refer to uS parameters 34 1 AUXILIARY RELAY WITH DIRECT ACTION 34 2 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...

Page 84: ...elay 2 summer set point US13 US14 C F Bar Psi Dec int Dec 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...

Page 85: ... enabled 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 35 1 AUXILIARY PROPORTIONAL OUTPUT DIRECT ACTION US46 0 US46 1 35 2 AUXILIARY PROPORTIONAL OUTPUT INVERSE ACTION US46 0 ...

Page 86: ...S 27 Analog 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 diff...

Page 87: ...er differential 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 ...

Page 88: ...ter a defrost cycle when the Ichill change the operation mode from heat pump to chiller or when the Ichill is in STD BY or remote OFF dF09 counter is stopped if the last compressor of the circuit is turned off or if the pressure temperature of the condensing evaporating probe increase over dF02 Phase 2 When dF09 counter is elapsed the defrost procedure starts If one digital input is configured as ...

Page 89: ... Maximum defrost time and the dF02 configuration or with the end defrost contact the bottom display will show alternated with the normal measurement value the label b1dF circuit 1 or b2dF circuit 2 labels to indicate the defrost end alarms 37 4 FORCED DEFROST The function is enabled if the parameter dF19 0 It allows to make a forced defrost cycle even if the dF09 timeout counting is not expired wh...

Page 90: ...er involved dF23 0 Independent 1 Both circuits have reached the conditions to stop the defrost 2 At least one circuit has reached the end defrost condition Common condensation possibile configuration Parametri dF23 0 dF23 1 dF23 2 dF22 0 not possible ACF1 not possible ACF1 not possible ACF1 dF22 1 not possible ACF1 YES YES dF22 2 not possible ACF1 YES not possible ACF1 Separate condensation possib...

Page 91: ... defrost It determines the minimum defrost time duration after starting the defrost itself even if the conditions are not more satisfied dF05 Maximum duration of the defrost If dF01 2 it determines the maximum duration of the defrost and even if for the other cases the end defrost condition are still to be satisfied dF06 defrost delay time between the 1 st and the 2 nd circuit After the interval d...

Page 92: ...ntrol is not active If dF17 1 when the condensing temperature pressure value increases over dF18 the fans are turned on the fan control is determined by the same algorithm used in chiller mode If dF17 2 during the dripping time dF08 0 the fan are turned on for the time duration set in dF08 dF18 Pressure temperature setpoint to force the fans on during the defrost When the temperature pressure rise...

Page 93: ...native to Probe 2 it is possible ti choose another probe setting FS48 parameter Configurable proportional band and set point are used to regulate the production of domestic hot water when the domestic hot water function is enabled you will see symbol lighted on the display The production of domestic hot water can only be requested when the temperature detected by Probe n 1 is below the FS03 set po...

Page 94: ...9 1 the proportional band is divided by the number of compressors at every step proportional band number of compressors a compressor will be switched on FS49 0 Example for machine with 3 compressors FS49 1 Example for machine with 3 compressors Domestic hot water heaters Domestic hot water is produced using mainly the compressors the domestic hot water heaters are only used to produce domestic hot...

Page 95: ... water the machine will continue to operate but the regulation of the chiller or heat pump is disabled and domestic hot water continues to be produced 38 1 ANTI LEGIONELLA FUNCTION The FS12 parameter allows you to enable the anti legionella function FS12 0 intervals between two anti legionella cycles the process will have to be repeated after the FS13 time since the last anti legionella production...

Page 96: ...and if falls down below FS 50 compressors are switched on The Anti legionella cycle lasts maximum FS29 minutes FS46 2 Only heaters are used in Anti legionella cycle Only domestic hot water heaters are used in the Anti legionella cycle compressors off when FS14 FS20 temperature is reached the heaters are switched off Once reached the set point the instrument works to maintain the set point for FS19...

Page 97: ...and OUT 2 outputs switching The domestic hot water flow switch is managed by parameters AL65 68 Domestic hot water flow switch solar panel flow switch and overload domestic hot water pump It is possible to enable the domestic hot water flow switch by setting appropriately parameters AL65 AL68 It is possible to enable the solar panel flow switch by setting appropriately parameters AL69 AL72 If dome...

Page 98: ...ve 1 is switched off after a delay of FS28 seconds the domestic hot water pump is switched off The defrost can now start as per the normal procedure At the end of the defrosting cycle If there is a need to produce domestic hot water the compressors and any heating elements will be switched on After the FS11 delay from the end of the dripping phase domestic hot water valve 1 is switched on and afte...

Page 99: ...the FS11 delay from the end of the dripping phase domestic hot water valve 1 is enabled and after the FS10 delay domestic hot water valve 2 is switched off If there is no need to produce domestic hot water the controller continues with normal heat regulation Domestic hot water operation when the unit is producing cold water 38 5 2 When the production of hot domestic hot water is required the seque...

Page 100: ...cycle is reversed as follows the 4 way valve status is reversed after dF07 2 the compressors are switched on the domestic hot water pump switches on after the FS11 delay from start up of the compressors after a delay of FS27 seconds the domestic hot water valve 1 is switched on after the FS10 delay the domestic hot water valve 2 is switched off Once the domestic hot water set point is reached the ...

Page 101: ...ic hot water at this moment if Dt FS59 the solar panel are not used and compressors are used for heating 39 2 SOLAR PANEL IN HEATING MODE Solar panel in integration mode FS56 1 If solar panel temperature heating temperature FS60 Dt to enable solar panel in heating the solar panel are enabled to work valve is open and water pump on heating probe is defined by FS58 parameter it is possible to set an...

Page 102: ...changer is managed accordind the temperature pressure of the specific circuit Parametres involved Hybrid exchangers set point 1 in chiller parameter dF27 Hybrid exchangers set point 1 in chiller parameter dF29 Hybrid exchangers set point 2 in chiller parameter dF28 Hybrid exchangers set point 2 in chiller parameter dF30 Hybrid exchangers set point 1 in heat pump parameter dF31 Hybrid exchangers se...

Page 103: ...ine if the machine is producing cooled water and domestic hot water reference set point is chiller set point if the machine is producing only domestic hot water reference set point is heat pump set point 41 GEOTHERMAL FREE COOLING Outputs managed relay for valve pump management 0 10V analog output to control a modulating valve In heating the relay is OFF and the analog output is 0V Free cooling op...

Page 104: ...imum speed of condenser fan 0 1 FS44 FC condensing fan maximum speed outside temperature differential 0 1 0 25 0 45 C F FS45 FC condensing fan delay 0 250 min FS62 FC low temperature stop probe 0 20 FS63 FC low temperature stop set point 50 0 58 110 230 C F FS64 FC low temperature stop differential 0 1 0 25 0 45 C F FS65 Delay to enable compressors if temperature above set 0 250 min FS66 FC analog...

Page 105: ...ximum time to reach the set point after which the compressors are enabled to operate if the regulation temperature exceeds St1 FS37 for FS65 time the compressors are enabled for the regulation Regarding the chart below the example assumes FS38 ST07 FS37 Low temperature protection If the temperature detected by probe selected with FS62 parameter is lower than FS63 set point the free cooling is disa...

Page 106: ...recovery function is enabled if 1 Par rC01 0 2 The unit is working in chiller mode 3 The condensing temperature or pressure is lower than set rC06 rC07 4 The heat recovery input output resources are correctly configured 5 The heat recovery digital input is activated and or a heat recovery probe is configured If the heat recovery is configured in the menu the REC sub menu is available to read the s...

Page 107: ...ve and in case of use of the probe recovery if the temperature is below the rC10 set point both conditions must be fulfilled if the heat recovery request comes when the number of compressors switched on is lower than the maximum available the recovery valve is activated with delay of RC02 seconds during this delay the switching on of more compressors of the circuit if required by the regulation is...

Page 108: ...f available compressor is switched on a compressor is switched off and a delay time rC02 starts counting once elapsed the heat recovery valve is activated condenser fan is switched off if rC09 1 and starts conting a delay rC03 after wich the compressor will be re started if CO02 time is elapsed Exit from heat recovery if the unit has only one compressor per circuit when heat recovery request is no...

Page 109: ...rC02 starts counting once elapsed the heat recovery valve is activated condenser fan is switched off if rC09 1 and starts conting a delay rC03 after wich the compressor will be re started if CO02 time is elapsed When the heat recovery is deactivated the next request will not be fulfilled until the end of time set in the RC05 counted from the moment of exit the recovery operation 43 MASTER SLAVE FU...

Page 110: ... is forced in STD BY or remote OFF by digital input the supply fan will be switched off with a CO18 delay 45 MESSAGES ALARM CODES The alarm codes are defined by an alphanumeric code Alarm typology A alarm of the unit b alarm of the circuit C alarm of the compressor 45 1 AUTOMATIC MANUAL ALARM DESCRIPTION The menù ALrM allows to read reset the alarms An alarm can be automatic reset the alarm reset ...

Page 111: ...uits unit and two separated condenser two condenser probe are not configured If condenser fan is configured with modulation and PWM outoput and the power supply selection is dc voltage CF63 2 If condenser fan is enabled as step control the following rules are to be respected FA09 FA10 FA26 FA27 in cooling mode FA29 FA28 FA19 FA18 in heating mode ACF3 Two relays or two digital inputs or two probes ...

Page 112: ... CO08 0 and CO09 0 By pass gas valve configured but by pass time 0 Coil 2 of part winding start up configured but direct start up selected Wrong configuration of the capacity step valve ACF7 Evaporator pump configuration Enabled CO16 0 but the relay of the water pump is not configured Not enabled CO16 0 but the relay of the water pump is configured Condenser pump configuration Enabled CO21 0 but t...

Page 113: ...ured with capacity step AC12 Free cooling function enabled and None relay is configured as free cooling FS41 and FS42 select a probe not configured in CF parameters If FS21 FS22 If FS01 2 and CF97 2 If it is not respected the following condition FS38 St07 FS37 AC13 Domestic hot water function enabled and None relay is configured as valve 1 None probe is configured as probe 1 of domestic hot water ...

Page 114: ...ng messages Loads Not changed 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 AEFL evaporator flow alarm differential pressure switch Label on alarm visualization menu AEFL evaporator flow alarm Origin Digital input active for the time set in AL15 after the water...

Page 115: ... water or water water units and CF01 1 2 the minimum number of events per hour is 1 AL17 Active flow input duration Within this time the flow alarm must be active and after AL17 is expired the alarm is signalled The counter starts after AL15 and allows to filter the improvise flow reduction or the possible bubbles of air AL18 Not active flow input duration Within this time the flow alarm must be n...

Page 116: ...tor circuit n 2 Origin During normal running condition when the temperature of evaporator water outlet is higher than CO55 setpoint Reset If the water temperature is lower than CO55 CO56 differential With unloading ON after the CO57 time delay Restart Automatic Symbol On the display the symbol is blinking Action Alarm relay buzzer Regulation Compressor OFF Other loads Not modified AHFL domestic ho...

Page 117: ...rt 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 if AL50 1 Origin Digital input configured as g...

Page 118: ...te keyboard 1 alarm probe APr2 remote keyboard 2 alarm probe APE1 I O expansion probe 1 alarm APE8 I O expansion probe 8 alarm APU1 expansion valve probe 1 alarm APU4 expansion valve probe 2 alarm Reason Probe configured but the read out is not in the range Reset Probe not configured or probe in the right range Restart Automatic Symbol On the display the symbol is blinking Action Alarm Relay and b...

Page 119: ... symbol is blinking Action Alarm relay buzzer ON Regulation Loads Not changed Energy saving Disabled if controlled by RTC Unit ON OFF Disabled if controlled by RTC ASAn Domestic hot water pump mintenance Label on alarm visualization menu ASAn Domestic hot water pump maintenance Origin Pump running hours Hour counter setpoint Reset Hour reset in function menu Restart Manual Symbol On the display th...

Page 120: ...visualization menu AtC1 overload pump alarm of condenser 1 AtC2 overload pump alarm of support condenser 2 Origin Active ID when it is configured as overload pump of condenser 1 Active ID when it is configured as overload pump of condenser 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 Load...

Page 121: ...Restart Automatic Manual if the digital input is active for AL16 seconds Reset procedure in Menu function Symbol On the display the symbol is blinking Action Alarm relay buzzer ON Loads OFF MANUAL RESET OF THE OVERLOAD ALARM OF THE SUPPLY FAN If the digital input is active for AL16 seconds it is necessary to restart manually the unit reset procedure in larm Menu with blinking label Reset if the al...

Page 122: ...are not activated If AL30 0 only the compressors are turned off and than display shows b1Ac b2Ac the buzzer and the alarm relay are activated If the alarm comes from the digital input also the anti freeze heaters are turned on b1AH b2AH Anti freeze alarm Low outlet air temperaure Air Air unit only on heat pump mode Label on alarm visualization menu b1AH anti freeze alarm of the circuit 1 in heat p...

Page 123: ... temperature pressure in Heat pump Label on alarm visualization menu b1CU unloading message from condenser 1 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 activate...

Page 124: ...rm Relay and buzzer on Regulation Condensing fan If FA02 0 the fan is forced at maximum speed for 60 seconds then switched off If FA02 1 the fan is forced at maximum speed for 60 seconds then regulate according to normal fan regulation b1lp b2lp Low temperature Low Condensing pressure of the Circuit Label on alarm visualization menu b1lP low pressure digital input of the circuit 1 b2lP low pressur...

Page 125: ... 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 related only to transducer values ...

Page 126: ...wer than the rC06 rC07 differential Unloading start after the time delay Par rC08 Restart Automatic Symbol On the display the symbol is blinking Action Alarm relay buzzer OFF b1tF b2tf Condenser fan overload alarm Label on alarm visualization menu b1tF Condenser fan overload alarm of the circuit 1 b2tF Condenser fan overload alarm of the circuit 2 Origin When the digital input is active Reset When...

Page 127: ...s forced at maximum speed for 60 seconds then switched off If FA02 1 the fan is forced at maximum speed for 60 seconds then regulate according to normal fan regulation C1Mn C2Mn C3Mn C4Mn C5Mn C6Mn Compressor maintenance Label on alarm visualization menu C1Mn Compressor 1 maintenance C6Mn Compressor 6 maintenance Origin Compressor running hours Hour counter setpoint Reset Hour reset in function me...

Page 128: ...ure AL78 Screw compressor Condensing pressure compressor oil pressure AL78 Reset Pistons compressor Compressor oil pressure evaporating pressure AL78 AL79 Screw compressor Condensing pressure compressor oil pressure AL78 AL79 Restart Automatic Manual after AL80 events per hour Reset procedure in Menu function Symbol On the display the symbol is blinking Action Alarm Relay and buzzer on Compressor ...

Page 129: ...lue set the alarm is manual reset Each hour is divided in 16 th intervals each interval is 3600 16 225 seconds 1 Int 2 Int 3 Int 4 Int 5 Int 6 Int 7 Int 8 Int 9 Int 10 Int 11 Int 12 Int 13 Int 14 Int 15 Int 16 Int After the unit start up each interval is marked as not active During the interval counting for 255seconds if at least an alarm event appears the interval itself is marked Active Starting...

Page 130: ...aporator OFF AEUn Unloading signalling from high temp of evaporator water AHFL Domestic hot water flow switch alarm OFF 6 OFF OFF ALC1 General alarm OFF OFF OFF OFF OFF OFF ALC2 Genearl alarm type 2 OFF 3 OFF 3 OFF 3 OFF 3 OFF 3 OFF 3 ALOC Generic alarm OFF OFF OFF OFF OFF ALSF Phase sequence alarm OFF OFF OFF OFF OFF OFF OFF OFF OFF ALti Low air temperature of the evaporator inlet air air unit Al...

Page 131: ...with IEV expansion valve driver OFF OFF OFF OFF OFF OFF OFF OFF AtrE Remote terminal Visograph 2 0 communication alarm 1 1 1 1 1 1 1 1 1 Atr1 Atr2 Remote terminal VI622 TI620 communication alarm 1 1 1 1 1 1 1 1 1 1 if the probe is the regulation probe 2 with probe configured as auxiliary relay control 3 with manual alarm procedure 4 Off compressors with only 1 water pump configured or with 2 pumps...

Page 132: ...st circuit n b n ds Circuit n disabled from keyboard OFF OFF b n HP High pressure switch of the circuit n OFF OFF after 60 seconds b n hP High condensing pressure of the circuit n OFF OFF after 60 seconds b n hP High condensing temperature from NTC of the circuit n OFF OFF after 60 seconds b n LP Low pressure switch of the circuit n OFF OFF b n LP Low condensing pressure evaporating with low press...

Page 133: ...evel switch OFF C n Pd Compressor oil differential OFF C n tr Compressor n overload OFF n identifies the compressor 1 2 3 4 5 6 47 4 WARNING Alarm Code Alarm description noL Link problem between the Ichill and the remote keyboard AEP1 Evaporator 1 water pump maintenance AEP2 Evaporator 2 water pump maintenance support ACP1 Condenser 1 water pump maintenance ACP2 Condenser 2 water pump maintenance ...

Page 134: ...C for auxiliary output 2 24 Temperature probe NTC domestic hot water 1 25 Temperature probe NTC domestic hot water 2 26 Temperature probe NTC solar panel 27 Temperature probe NTC recovery function 28 Temperature probe NTC for condensing circuit 1 29 Temperature probe NTC for condensing circuit 2 After the number 28 the configuration can be selected from o 1 to c75 that allows to set an analogue in...

Page 135: ... ID9 0 Not enabled 1 Remote ON OFF 2 Remote chiller heat pump 3 Flow switch Supply fan overload 4 Flow switch of heated side 5 Antifreeze heater circuit 1 6 Antifreeze heater circuit 2 7 High pressure switch circuit 1 8 High pressure switch circuit 2 9 Low pressure switch circuit 1 10 Low pressure switch circuit 2 11 Compressor 1 high pressure 12 Compressor 2 high pressure 13 Compressor 3 high pre...

Page 136: ...switch 67 Only domestic hot water 68 Domestic hot water heaters overload 69 Domestic hot water pump overload 70 Domestic hot water second set point 71 Phase sequence alarm 72 Domestic hot water priority 73 Free cooling water pump flow switch 74 Expansion valve 1 alarm 75 Expansion valve 2 alarm 76 Condenser antifreeze alarm circuit n 1 77 Condenser antifreeze alarm circuit n 2 78 Compressor 1 of c...

Page 137: ...ttent for screw compressor 1 30 Solenoid valve Intermittent for screw compressor 2 31 Solenoid valve of the liquid injection for compressor 1 32 Solenoid valve of the liquid injection for compressor 2 33 Domestic hot valve 1 34 Domestic hot valve 2 35 Domestic hot heater 1 36 Domestic hot heater 2 37 Domestic hot heater 3 38 Solar panel water pump 39 Solar panel valve 40 Domestic hot water pump 41...

Page 138: ...number 9 it is possible to configure the analog output as digital output with the same meaning of the relays configuration every analog output can be configured from o 1 to c54 see relay configuration table 48 6 ANALOG OUTPUT OUT2 E OUT3 0 10 VOLT 4 20MA PWM 0 Not enabled 1 Modulated evaporator water pump 0 10 Vdc 2 Modulated Free cooling valve 0 10 Vdc 3 not used 4 Auxiliary output 0 10V n 1 0 10...

Page 139: ...e NTC for auxiliary output 2 24 Temperature probe NTC domestic hot water 1 25 Temperature probe NTC domestic hot water 2 26 Temperature probe NTC solar panel 27 Temperature probe NTC recovery function 28 Temperature probe NTC for condensing circuit 1 29 Temperature probe NTC for condensing circuit 2 After the number 28 the configuration can be selected from o 1 to c75 that allows to set an analogu...

Page 140: ... ID9 0 Not enabled 1 Remote ON OFF 2 Remote chiller heat pump 3 Flow switch Supply fan overload 4 Flow switch of heated side 5 Antifreeze heater circuit 1 6 Antifreeze heater circuit 2 7 High pressure switch circuit 1 8 High pressure switch circuit 2 9 Low pressure switch circuit 1 10 Low pressure switch circuit 2 11 Compressor 1 high pressure 12 Compressor 2 high pressure 13 Compressor 3 high pre...

Page 141: ...switch 67 Only domestic hot water 68 Domestic hot water heaters overload 69 Domestic hot water pump overload 70 Domestic hot water second set point 71 Phase sequence alarm 72 Domestic hot water priority 73 Free cooling water pump flow switch 74 Expansion valve 1 alarm 75 Expansion valve 2 alarm 76 Condenser antifreeze alarm circuit n 1 77 Condenser antifreeze alarm circuit n 2 78 Compressor 1 of c...

Page 142: ...ttent for screw compressor 1 30 Solenoid valve Intermittent for screw compressor 2 31 Solenoid valve of the liquid injection for compressor 1 32 Solenoid valve of the liquid injection for compressor 2 33 Domestic hot valve 1 34 Domestic hot valve 2 35 Domestic hot heater 1 36 Domestic hot heater 2 37 Domestic hot heater 3 38 Solar panel water pump 39 Solar panel valve 40 Domestic hot water pump 41...

Page 143: ...ompressor 1 7 Proportional output for modulating compressor 2 8 Condenser fan circuit 1 9 Condenser fan circuit 2 After selection number 9 it is possible to configure the analog output as digital output with the same meaning of the relays configuration every analog output can be configured from o 1 to c54 see relay configuration table 49 6 ANALOG OUTPUT OUT2 E OUT3 0 10 VOLT 4 20MA PWM 0 Not enabl...

Page 144: ...er inlet of the circuit 1 condenser 8 Temperature probe for water inlet of the circuit 2 condenser 9 Temperature probe for water outlet of the circuit 1 condenser 10 Temperature probe for water outlet of the circuit 2 condenser 11 Temperature probe for water common otlet of the condenser 0 11 ST 11 Type of thermoregulation 0 Proportional 1 Neutral zone 0 1 Visualizzazione display Parameter Descrip...

Page 145: ...the pressure probe configured as auxiliary output 1 and 2 are controlled with 0 5Vdc transducers 3 Pressure control with 0 5Vdc To control the evaporating and condensing pressures it is necessary a ratiometric 0 5Vdc transducer 0 3 CF 8 PB1 Configuration If configured as digital input 0 o 1 29 c94 CF 9 PB2 Configuration If configured as digital input 0 o 1 29 c94 CF 10 PB3 Configuration If configu...

Page 146: ...9 0 c94 CF 39 Not used 0 0 CF 40 Not used 0 0 CF 41 Configuration of RL1 0 c80 CF 42 Configuration of RL2 0 c80 CF 43 Configuration of RL3 0 c80 CF 44 Configuration of RL4 0 c80 CF 45 Configuration of RL5 0 c80 CF 46 Configuration of RL6 0 c80 CF 47 Configuration of RL7 0 c80 CF 48 Not used 0 0 CF 49 Analog output selection 0 0 10V 1 4 20mA 0 1 CF 50 Proportional output OUT 1 0 not configured 1 mo...

Page 147: ...yboard 1 Chiller Heat pump selection by digital input 2 Chiller Heat pump selection by analogue input 0 2 CF 60 Automatic change over setpoint for chiller heat pump selection CF79 2 50 0 58 110 0 230 C F Dec int CF 61 Automatic change over differential CF79 2 0 1 0 25 0 45 C F Dec int CF 62 C or F selection 0 C BAR 1 F psi 0 1 CF 63 Power supply frequency 0 50 Hz 1 60 Hz 2 Vcc power supply ATTENTI...

Page 148: ... Pb5 calibration 12 0 21 5 0 72 12 0 21 5 0 72 C F bar psi Dec int dec int EI 15 I O expansion Pb6 calibration 12 0 21 5 0 72 12 0 21 5 0 72 C F bar psi Dec int dec int EI 16 I O expansion Pb7 calibration 12 0 21 12 0 21 C F Dec int EI 17 I O expansion Pb8 calibration 12 0 21 12 0 21 C F Dec int EI 18 I O expansion Pb3 minimum pressure value 1 0 14 50 0 725 Bar psi Dec int EI 19 I O expansion Pb3 ...

Page 149: ...mp 0 10V 2 Free cooling modulating output 0 10V 3 not used 4 auxiliary output AUX1 0 10V 5 auxiliary output AUX2 0 10V 6 inverter compressor 1 0 10V 7 inverter compressor 2 0 10V 8 modulating condenser fan circuit 1 0 10V 9 modulating condenser fan circuit 2 0 10V 10 modulating condenser fan circuit 1 PWM 11 modulating condenser fan circuit 2 PWM o1 c50 ON OFF output with the same meaning of relè ...

Page 150: ...4 0 24 00 Hr 10 Min ES 5 Start of the Time band 3 0 24 0 24 00 Hr 10 Min ES 6 End of the Time Band 3 0 24 0 24 00 Hr 10 Min ES 7 Monday energy saving activated Automatic unit on off 0 0 7 7 ES 8 Tuesday energy saving activated Automatic unit on off 0 0 7 7 ES 9 Wednesday energy saving activated Automatic unit on off 0 0 7 7 ES 10 Thursday energy saving activated Automatic unit on off 0 0 7 7 ES 11...

Page 151: ...sor and valve During this time the led of the next resource is blinking 0 250 Sec CO 5 Output time delay after the main power supply start up to the unit All the loads are delayed in case of frequently power failures 0 250 10 Sec 10 sec CO 6 Functioning see Capacity Control 0 With on off steps 1 Continuous with steps and direct action 2 Continuous with steps and reverse action 3 Continuous with st...

Page 152: ... warning 0 999 10 Hr 10 Hr CO 31 Compressor 6 operation time to generate maintenance warning 0 999 10 Hr 10 Hr CO 32 Evaporator pump Supply fan operation time to generate maintenance warning 0 999 10 Hr 10 Hr CO 33 2nd Evaporator pump operation time to generate maintenance warning 0 999 10 Hr 10 Hr CO 34 Condenser pump operation time to generate maintenance warning 0 999 10 Hr 10 Hr CO 35 2nd Cond...

Page 153: ...3 0 250 Min 10 Min CO 65 Time of forcing the compressor inverter controlled to the maximum power 0 250 sec sec CO 66 Maximum time continuative of work of the compressor inverter controlled 0 999 Hr 1Hr CO 67 Minimum value of the compressor 1 inverter controlled 1 CO68 CO 68 Maximum value of the compressor 1 inverter controlled CO67 100 CO 69 Minimum value of the compressor 2 inverter controlled 1 ...

Page 154: ...be value Pb1 Pb10 controls the relay 1 22 US 3 Auxiliary relay 1 summer minimum set point 50 0 58 0 0 0 US5 C F Bar Psi Dec int Dec int US 4 Auxiliary relay 1 summer maximum set point US5 110 0 230 50 0 725 C F Bar Psi Dec int Dec int US 5 Auxiliary relay 1 summer set point US3 US4 C F Bar Psi Dec int Dec int US 6 Auxiliary relay 1 winter minimum set point 50 0 58 0 0 0 US8 C F Bar Psi Dec int Dec...

Page 155: ...58 0 0 0 US26 C F Bar Psi Dec int Dec int US 25 Analog output 1 summer maximum set point US26 110 0 230 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 27 Analog output 1 winter minimum set point 50 0 58 0 0 0 US29 C F Bar Psi Dec int Dec int US 28 Analog output 1 winter maximum set point US29 110 0 230 50 0 725 C F Bar Psi Dec i...

Page 156: ... for maximum speed of modulationg evaporator water pump in chiller 0 1 0 0 1 1 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 22 US 54 Probe 2 selection for evaporator water pump modulation in H...

Page 157: ...int FA 11 Proportional speed control FA01 4 Proportional band for condenser fan control in chiller To set the temperature pressure differential between the minimum and the maximum of the fan speed regulation ON OFF regulation FA01 2 3 Differential step circuit n 1 0 1 0 0 1 1 25 0 45 14 0 203 C F Bar Psi Dec int Dec int FA 12 Proportional speed control FA01 4 CUT OFF differential in chiller To set...

Page 158: ...50 0 725 C F Bar Psi Dec int Dec int FA 30 Pre ventilation in Heat Pump only if FA01 4 0 250 Sec Sec FA 31 Post ventilation in Heat Pump 0 250 Sec 10Sec FA 32 Outside temperature to enable post ventilation in Heat Pump 50 0 58 110 0 230 C F Dec int FA 33 Condenser fan speed during post ventilation 0 100 Condenser fan in defrost FA 34 Condenser fan max modulation speed in defrost 0 100 FA 35 Temp p...

Page 159: ...External air differential to stop the compressor as integration function 0 1 0 25 0 45 C F Dec int Ar21 Termoregulation probe anti freeze alarm in chiller mode 0 Not enabled 1 Evaporator inlet 2 Evaporator outlet 1 and 2 3 Evaporator outlet 1 and 2 and common outlet 4 External temperature 0 4 Ar22 Termoregulation probe anti freeze alarm in heat pump mode 0 Not enabled 1 Evaporator inlet 2 Evaporat...

Page 160: ... antifreeze alarm events per hour to generate manual reset alarm in heat pump 0 16 Parameter Description min max M u Resolution 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 probe selected by par dF24 and stop for external contact 4 Defrost only with condenser fan 5...

Page 161: ...mperatur pressure probe stop with evaporator pressure probe 3 start and stop with evaporator pressure probe 0 3 dF 25 Stop supply fan diuring defrost cycle 0 Not enabled 1 enable 0 1 dF 26 Set point to enable defrost with condenser fan 50 0 58 0 0 0 110 0 230 50 0 725 C F bar psi Dec int Dec int dF 27 Hybrid exchangers set point 1 in chiller 50 0 58 0 0 0 110 0 230 50 0 725 C F bar psi Dec int Dec...

Page 162: ...um value of the heat recovery set point 50 0 58 0 0 0 rC10 C F Bar Psi Dec int Dec int rC 12 Maximum value of the heat recovery set point rC10 110 0 230 50 0 725 C F Bar Psi Dec int Dec int rC 13 Differential heat recovery 0 1 0 0 1 1 25 0 45 14 0 203 C F Bar Psi Dec int Dec int Parameter Description min max M u Resolution FS 1 Domestic hot water regulation mode 0 not enabled 1 valves in water cir...

Page 163: ...Domestic hot water security set point 50 0 58 110 0 230 C F FS 31 Domestic hot water security differential 0 1 0 25 0 45 C F FS 32 Domestic hot water minimum interruption time 0 250 min FS 33 Domestic hot water pump operation mode 0 1 FS 34 Free cooling water pump OFF time if chiller only Free cooling 0 250 min FS 35 Free cooling water pump ON time if chiller only Free cooling 0 250 sec FS 36 Free...

Page 164: ... low temperature 0 22 FS 63 Set point to disable the Free cooling for low temperature 50 0 58 110 0 230 C F FS 64 Differential to disable the Free cooling for low temperature 0 1 0 25 0 45 C F FS 65 Delay time to enable compressor in free cooling 0 250 min FS 66 Dfferential to enable free cooling analog output 0 1 0 25 0 45 C F Parameter Description min max M u Resolution AL 1 Low pressure alarm d...

Page 165: ... alarm must change from automatic to manual reset 0 Always automatic reset 1 Manual reset after AL21 alarm events 0 1 AL 24 Minimum antifreeze setpoint in chiller from 30 C to AL24 50 0 58 AL26 C F Dec int AL 25 Maximum antifreeze setpoint in chiller from AL24 to 70 C AL26 110 0 230 C F Dec int AL 26 Setpoint temperature for low anti freeze alarm low ambient temperature air air low temperature air...

Page 166: ...al reset if AL41 0 Always automatic reset if AL41 16 From automatic to manual if AL41 1 15 0 16 AL 42 Maximum number of generic alarm events each event stop the regulation before turning the alarm from automatic to manual Always manual AL42 0 Always automatic AL42 16 From manual to utomatic if AL42 value is between 1 and 15 0 16 AL 43 Generic alarm delay time after the digital input activation 0 2...

Page 167: ...c if number of alarm AL75 manual if number of alarm AL75 0 16 AL76 Compressor oil level alarm only signalling 0 automatic manual reset oil alarm see AL13 and compressor switch off 1 oil alarm signal only compressor stays ON 0 1 AL77 Compressor overload alarm operation mode 0 always manual reset 1 always automatic reset 0 1 AL78 Dt temperature to generate compressor circuit differential oil alarm 0...

Page 168: ...r of resetted manual alarm to enter in alarm menu with password 0 250 Condenser fan overload AL 99 Overload alarm by pass time starting from condenser fan activation 0 250 sec 51 WIRING CONNECTIONS 51 1 HARDWARE RESOURCES FOR IC205D MODEL 5 x digital outputs relays MAX current on the relay contacts relè 5 2 A 250V MAX common current 10A 250V 9 x digital inputs free of voltage 8 x analogue inputs 5...

Page 169: ...e transducer 4 20 mA pressure transducer ratio metric 0 5 0 Volt 4 x modulating outputs 1 x 0 10 Volt 2 x 0 10 0 Volt or PWM for modulating condenser fan 1 x output to connect a remote keyboard max 2 remote keyboards 1 x LAN to connect an I O expansion module ICX207D 1 x TTL output for HotKey 64 for parameters programming or for XJ485CX interface module for monitoring system 1 x RS485 output to co...

Page 170: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 170 192 51 3 ANALOG INPUTS NTC PTC PROBES PbC common terminal Pb1 Pb6 probe inputs ...

Page 171: ...rel1 0 10 11 2015_rev10 IC200D 171 192 51 4 DIGITAL INPUTS GND common terminal ID1 ID11 digital inputs 51 5 ANALOG INPUT FOR PRESSURE TRANSDUCER 4 20MA SIGNAL 12V power supply for pressure transducers Pb3 and Pb4 pressure transducer inputs ...

Page 172: ...VO GB rel1 0 10 11 2015_rev10 IC200D 172 192 51 6 ANALOG INPUT FOR PRESSURE RATIOMETRIC TRANSDUCER PPR30 0 5V SIGNAL 5V power supply for pressure transducers GND ground for pressure transducers Pb3 and Pb4 pressure transducer inputs ...

Page 173: ...l1 0 10 11 2015_rev10 IC200D 173 192 51 7 PWM OUTPUT FOR CONDENSING FAN SPEED CONTROL ONLY FOR OUT2 AND OUT3 The compatible modules are the following XV05PK mono phase 500 Watt 2A XV10PK mono phase 1000 Watt 4A XV22PK mono phase 2200 Watt 9A ...

Page 174: ... 0 10 11 2015_rev10 IC200D 174 192 51 8 PROPORTIONAL OUTPUT FOR FAN CONDENSING CONTROL OR FOR COMPRESSOR INVERTER CONTROLLED OR FOR AUXILIARY OUTPUTS OUT1 OUT4 signals for the modulation of the condenser fan GND ground for pressure transducers ...

Page 175: ...OL DUMPER MOTORS OUT1 OUT4 signals for the modulation of the dumper motor GND ground If the dumper motor has a common line between a pole of the power supply and the pole of the 0 10V signal it is necessary to use two transformers for the power supply of the controller Ichill and the power supply of the dumper motor ...

Page 176: ...performed with the probe at the edge of the terminal To enable the remote keyboard is necessary to configure the following parameters in the Ichill parameter map CF54 Enable remote terminal 1 VI622 TI620 set the dip switch of the keyboard 1 to 1 position CF55 Enable remote terminal 2 VI622 TI620 set the dip switch of the keyboard 2 to ON position CF84 Enable remote terminal Visograph V2I820 The co...

Page 177: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 177 192 VI622 or TI620 led keyboard ...

Page 178: ... IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 178 192 V2I820 LCD keyboard 51 12 HOT KEY 64 CONNECTION HotKey 64 is used to tranfer a parameter list in the instrument or copy the parameter list of the instrument to the HotKey ...

Page 179: ...onnection diagrams of the I O expansion are shown in the manual of the expansion The connection to the Ichill is done via LAN To configure the expansion is necessary to enable expansion presence via parameter CF78 Presence expansion card I O configure the address of communication with the iCHILL with parameter EI01 configure expansion ICX207D the communication address via dip switch which must mat...

Page 180: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 180 192 Not used ...

Page 181: ... the Ichill the driver connection via parameters CF79 Presence expansion valve circuit 1 and CF80 Presence expansion valve circuit 2 configure in the Ichill the communication address with the valve driver via parameter CF81 configure in the driver valve the address for communication with the Ichill with parameter Ec47 must match the address set in parameter CF81 of the Ichill set in the Ichill if ...

Page 182: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 182 192 ...

Page 183: ...IEV electronic expansion driver follow the instructions in paragraph 52 and paragraph 53 and be sure to properly configure communication address the communication address between the Ichill and I O expansion and between Ichill and IEV must be different The maximum length of the LAN connection is 30 mt Connection with the same transformer the power supply voltage of the devices must be 24Vac dc ...

Page 184: ...ted trasformer 55 POWER SUPPLY FAILURE After a power supply failure at the following power on 1 the instrument return to the same status it had before the powew OFF 2 if a defrost was ongiong defrost procedure is stopped 3 if a manual reset alarm was ongoing the alarm is not re setted automatically ...

Page 185: ...0 11 2015_rev10 IC200D 185 192 56 INSTALLING AND MOUNTING 56 1 MECHANICAL CHARACTERISTIC Mount DIN rail EN 50022 DIN 43880 Material PC ABS Thermoplastic Self extinguishing V0 UL94 Comparative Tracking Index CTI 300V Colour Black IP protection IP10 ...

Page 186: ...86 192 56 2 VI622 PANEL CUT OUT The remote terminals are designer for panel mounting panel cut out 72x56 mm and screwed with two screws For IP65 use gasket RGW V optional WALL MOUNTING use the vertical V KIT black white and grey as described in the following scheme Fig 1 ...

Page 187: ...1592015610 User manual IC200D EVO GB rel1 0 10 11 2015_rev10 IC200D 187 192 56 3 TI620 PANEL CUT OUT 165 150 31 Ø3 x2 56 4 V2I820 PANEL CUT OUT ...

Page 188: ...re size signal cable AWG 24 power supply cable AWG 22 General notes Check the connecitons and the line voltage before turning on the power supply Keep low voltage cables such as analogue digital inputs outputs and probes away from power cables and terminals Respect the maximum load current of each relay output in case of power loads use filtered contactors 58 ACCESSORIES 58 1 MONOPHASE FAN CONTROL...

Page 189: ... 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 TF10 trasnformer models 230 12 Vac 230 24 Vac 110 12 Vac 24 12 Vac 58 2 RT314 KIT Relay module DIN rail mounting to connect a relay to an analog output 58 3 HOT KEY Parameters copying key ...

Page 190: ... PTC 50T150 C 990Ω 1 a 25 C Rathiometric 0 5 4 5V Current 4 20mA Digital input free contact Operation range 50 C 110 C 58 F 230 F NTC probe 50 C 150 C 58 F 302 F PTC probe 0 bar 50 bar 0 psi 302 psi pressure probe Resolution 0 1 C 1 F 0 1 bar 1 psi 59 3 DIGITAL INPUT Type configurable via software parameter Free contact not opto insulated Number of inputs 9 Notes Don t supply voltage to the digita...

Page 191: ...30 C 85 C Operating humidity 20 85 not condensing 60 INSTALLATION The device must not be installed in environments where the following situations are present Temperature and humidity outside the range stipulated in the data plate Frequent and sudden changes in temperature and or humidity Direct sunlight and weathering in general High mechanical stress vibrations and or knocks Sulphur and ammonia g...

Page 192: ...he signal cables from the power cables it is recommended to use BELDEN 8772 type shielded cables in order to prevent malfunction due to electromagnetic interference do not use the same electrical conduit to install high voltage cabling and low voltage cabling The ground connection of the secondary coil of the transformer that powers the device can result in a bad performance where possible this co...

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