101723b02 pco3 chiller - user

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Conf igurat ion and user m anual

User Vers ion

Manual 101723B02Issue 03.08Replaces 10.07

3

INDEX

1 GENERAL ...................................................................................................4

1.1 SCOPE OF THE MANUAL .................................................................................................................................... 41.2 CONTROL FUNCTIONS ...................................................................................................................................... 4

2 USER INTERFACE ......................................................................................5

3 MASK S .......................................................................................................6

3.1 GENERAL ........................................................................................................................................................ 63.2 THE LIST OF BRANCHES.................................................................................................................................... 6

3.2.1 On/off mask ............................................................................................................................................ 63.2.2 Menu Masks ........................................................................................................................................... 73.2.3 Set Masks............................................................................................................................................... 93.2.4 Timer Masks ......................................................................................................................................... 103.2.5 Menu forms........................................................................................................................................... 113.2.6 Maintenance Masks.............................................................................................................................. 123.2.7 I/O forms............................................................................................................................................... 13

4 UNIT OPERATION ....................................................................................17

4.1.1 Unit in stand-by..................................................................................................................................... 174.1.2 Abilitazione e arresto dell’unità ............................................................................................................. 174.1.3 Chiller unit and heat pump operation.................................................................................................... 174.1.4 Double set operation ............................................................................................................................ 17

5 ALARM FORMS ........................................................................................18

5.1.1 Summary of alarm forms ...................................................................................................................... 18

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1 GENERAL

1.1 Scope of the manualThe scope of this manual is to provide all information required to use the pCO3 control.This version of the manual has been updated to software version 2.5.The new software has involved a large number of amendments so it is advisable to use relative manuals forprevious versions of the software.

1.2 Control functionsThe pCO3 microprocessor electronic control with the FLBB0MP20A program is for managing chiller units and heatpumps.The program can be configured to manage units with water and air condensation, tube and plate heat exchangers,separate and parallel cooling circuits.Management of chiller units means controlling safe operation of the components during their intended operationphases.Furthermore, if a single card does not offer a sufficient number of inputs and outputs, several cards can beinterconnected to form a local pLAN network.

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2 USER INTERFACE

The user interface has six keys and a display screen with 20 columns and 4 lines.The interface can be used to start and stop the unit and check running status.The information displayed on the screen show current running status and the six keys can be used to carry out alloperational tasks.

PGD0 user interface

The functions of the six buttons are as follows:

Button: “up arrow” to scroll through the forms in the branches and to increase values in thevarious fields.

Button: “down arrow” to scroll through the forms in the branches and to decrease values inthe various fields.

Button: “Button enter” to confirm a selection, access the various branches and change theparameters.

Button: “Button alarm” to stop a buzzer, to display and, if required, cancel active alarms.

Button: “Button prog” to access the loop of forms in the various branches.

This button returns you to the main display.

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3 [OD1]MASK S

3.1 GeneralThe branches enable access and setting of the parameters at various access levels.Each branch is at a different access level which may be password protected or require a particular combination ofbuttons.If no buttons are pressed for 5 minutes, regardless of which branch you are in, the control automatically returns tothe main menu.The values and settings in the branches of the manual are for illustrative purposes only, and not those on the units.The real values on the installed controls differ according to the unit’s installation and features.

3.2 The list of branchesThese are the branches: Service, Maintenance, GSM, Clock, Menu, Set, I/O and Log.To access the branches, press the “prg” button and the control displays a branch with a continuous loop where allthe available menus are mentioned on three lines.The branch comprises two lateral lines of normal width and a double central line corresponding to the selectedbranch, as shown in the example.

M_MAIN_SCROLLChange

MenuSet

The complete loop is:Italian: “Menù”; “Set”; “I/O”; “Orologio”; “GSM”; “Manuten.“; “Service”; "On/Off"; and "Cambio".English: “Menù”; “Set”; “I/O”; “Clock”; “GSM”; “Mainten.“; “Service”; "On/Off"; and "Change".German: “Menù”; “Set”; “I/O”; “Uhr”; “GSM”; “ Wartung“; “ Service”; "Ein/Aus; and "Wechsel".Spanish: “Menù”; “Set”; “I/O”; “Reloj”; “GSM”; “Manten.“; “ Servicio”; " On/Off; and "Cambio".French: “Menù”; “Set”; “E/S”; “Horloge”; “GSM”; “Entret.“; “ Service”; " On/Off; and "Echange".

Use the arrow buttons to change the forms in the branches.The cursor will always start in the top left-hand field of the form, apart from on the main menu page.Use the “Enter” button to move between fields where values can be entered or changed.The set value in a field selected with the “enter” key can be changed by using the arrow buttons.Press the “enter” button again to confirm the change value and move on to the next field.

3.2.1 On/off maskUse this branch to start/stop the unit.Access the branch from any mask by pressing the “prg” key to return to the main menu and select the branchrequired.Scroll the mask options using the up and down keys until a double-sized “On/off” is displayed on the centre of thescreen, confirm with the “enter” key.

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UnitOffPress on [<-] for: - turn on -

Pressing the “enter” will start the unit if it is off and stop it if it is running.

3.2.2 Menu Masks

All the main parameters on the unit’s operation are available in the “Menu” branch.Access the branch from any form by pressing by the “Esc” button, or pressing the “prg” button to access theM_MAIN_SCROLL form, scrolling through the options on the display with the UP and DOWN arrows until “Menu” inlarge print appears at the centre of the display, and confirming with the “enter” button.Apart from the main one, “MENU_1”, the forms all relate to enabled functions.

MENU_1Ref. Water 00.0°CSet 00.0°CSystem:OffChiller Operation

This form indicates the reference water temperature for operation of the unit (digital input or supervision) and thetype of operation.This form appears upon unit start-up and the program returns to it automatically.

MENU_2UnloadCompressorsOperation

The form will be present on the loop when the compressors operate with ordered capacity control, regardless of thetype of order.

MENU_3Free CoolingOff-lineRecoveryOff-line

This form only appears if the free cooling or heat recovery functions have been enabled. The form indicates whetherthe functions are enabled or not.

MENU_4Dual Set PointOperating ModeOperationHIGH Set 00.0°C

This form only appears if dual set point operation is intended. The form indicates the enabled set and its value.

MENU_5Delay Unload 00000sDelay Load 00000s

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Actual Set 00.0°C |Dead Zone|

This form only appears if temperature control at outlet is enabled. The form indicates the delay unload and delayload values for the control when the reference water temperature is outside of the dead zone.An asterisk appears in the last line if the reference water temperature is outside of the dead zone.

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MENU_6Unit Working 000%Comp.Running 0N.Unload 0Stepless 000%

This form appears regardless of the unit’s configuration, although the number of lines in the form depends on thetype of compressors and capacity controls.The first line indicates the percentage of capacity required by the system corresponding to the amount enabled onthe unit; the second line indicates the number of enabled compressors; the third line indicates the number ofcapacity controls if there are compressors with capacity step control; and the fourth line indicates the percentage ofcapacity control if it is stepless.

3.2.3 Set MasksIn the “Set” branch you can set all the main operating parameters.To enter the “Set” branch, scroll the options with the UP and DOWN arrows until “Set” in large print features at thecentre of the display, and confirm by pressing “enter”.

SET_1Set PointSummer 00.0°CWinter 00.0°C

In this form you can set the summer set point and, if heat pump operation is possible, the winter set point.

SET_2Dual Set Point Sel. HIGH

This form only appears if operation with double set point is possible and can be changed using the keyboard. It willtherefore be possible to change the operation set point from HIGH to LOW and vice versa.

SET_3Set PointHIGH 00.0°CLOW 00.0°CWinter 00.0°C

This form will only replace “SET_1” if there is operation with double set point, and the set points can be changed.

SET_4Set PointRecovery 45.0°C

This form will only appear if heat recovery operation is possible, and the recovery set can be changed.

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SET_6Set Point 08.0°COutlet Alarm 04.0°CMax.Temperat. 15.0°C

This form only appears on the loop if there is water temperature control at outlet, and it replaces the “SET_1” form.It indicates the values of the set point, the anti-freeze alarm and maximum temperature for supply.

SET_7Set running:

SUMMER

This form only appears for chiller and heat pump units and allows you to change the operation from SUMMER toWINTER and vice versa, if the same function is not available from digital input.

3.2.4 Timer Masks

In the “Time” branch you can read the current time and correct it if necessary.To enter the “Time” branch, scroll the menus with the UP and DOWN arrows until “Time” in large print features atthe centre of the display, and confirm by pressing “enter”.After entering the branch, press an arrow button to access the form for setting the password.The default password for the time branch is 00001.Correct date and time are essential for managing the alarms log.

Orol_1Date 00/00/00 dd/mm/yyHour 00:00 hh:mm

This form displays the current date and time.

Orol_2Clock Password '00000

In this form, set the password for entering the form that enables you to correct the date and time.

Orol_3Date 00/00/00 dd/mm/yyHour 00:00 hh:mm

You can set the correct date and time in this form.

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3.2.5 Menu forms

All the main parameters on the unit’s operation are available in the “Menu” branch.Access the branch from any form by pressing by the “Esc” button, or pressing the “prg” button to access theM_MAIN_SCROLL form, scrolling through the options on the display with the UP and DOWN arrows until “Menu” inlarge print appears at the centre of the display, and confirming with the “enter” button.Apart from the main one, “MENU_1”, the forms all relate to enabled functions.

MENU_1Ref. Water 00.0°CSet 00.0°CSystem:OffChiller Operation

This form indicates the reference water temperature for operation of the unit (digital input or supervision) and thetype of operation.This form appears upon unit start-up and the program returns to it automatically.

MENU_2UnloadCompressorsOperation

The form will be present on the loop when the compressors operate with ordered capacity control, regardless of thetype of order.

MENU_3Free CoolingOff-lineRecoveryOff-line

This form only appears if the free cooling or heat recovery functions have been enabled. The form indicates whetherthe functions are enabled or not.

MENU_4Dual Set PointOperating ModeOperationHIGH Set 00.0°C

This form only appears if dual set point operation is intended. The form indicates the enabled set and its value.

MENU_5Delay Unload 00000sDelay Load 00000sActual Set 00.0°C |Dead Zone|

This form only appears if temperature control at outlet is enabled. The form indicates the delay unload and delayload values for the control when the reference water temperature is outside of the dead zone.An asterisk appears in the last line if the reference water temperature is outside of the dead zone.

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MENU_6Unit Working 000%Comp.Running 0N.Unload 0Stepless 000%

This form appears regardless of the unit’s configuration, although the number of lines in the form depends on thetype of compressors and capacity controls.The first line indicates the percentage of capacity required by the system corresponding to the amount enabled onthe unit; the second line indicates the number of enabled compressors; the third line indicates the number ofcapacity controls if there are compressors with capacity step control; and the fourth line indicates the percentage ofcapacity control if it is stepless.

3.2.6 Maintenance Masks

In this branch it is possible to view and set all the parameters required for managing the compressors and the unit’spumps.The branch can be accessed from any form by pressing the “prg” button, and the “M_MAIN_SCROLL” formappears for selecting the branch.Scroll through the options in the form using the up and down arrows until the “Maintenance” message, in doublesize, is at the centre of the display. Confirm by pressing the “enter” button.

MANU _1Operation HoursUnit 00000Compressor 1 00000Compressor 2 00000

This form displays the number of operation hours of the entire unit and individual compressors. The last line onlyappears if the unit features compressor 2.

MANU _1_1Operation HoursCompressor 3 00000Compressor 4 00000

This form displays the number of operation hours of compressors 3 and 4.The form only appears if the unit features compressor 3 and line three only appears if there is compressor 4.

MANU _2StartingUnit 00000Compressor 1 00000Compressor 2 00000

This form displays the number of starting procedures of the entire unit and individual compressors.The last line only appears if the unit features compressor 2.

MANU _2_1StartingCompressor 3 00000Compressor 4 00000

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This form displays the number of starting procedures of compressors 3 and 4.The form only appears if the unit features compressor 3, and the third line only appears if there is compressor 4.

MANU _3Operation HoursPump 1 00000Pump 2 00000

This form displays the number of operation hours of each individual pump.The form only appears if the unit features at least one pump, and line three only appears if there is a second pump.

MANU _4StartingPump 1 00000Pump 2 00000

This form displays the number of starting procedures of each individual pump; like the previous form, it onlyappears if the unit features at least one pump, and the third line only appears if there is a second pump.

MANU_4_4 GSM MODEMStatum:InitializationField: 000%

The real values on the installed masks differ according to the unit’s installation and features.

3.2.7 I/O[OD2] formsYou can view the status of all the digital and analog inputs and outputs in the I/O branch.To enter the “I/O” branch, scroll the options with the UP and DOWN arrows until “I/O” in large print features at thecentre of the display, and confirm by pressing “enter”.

This series of masks display the values read by the probes. The installed masks differ according to the unit’sfeatures.

I_0_1Water TemperatureReference +00.0°COutlet 1 +00.0Outlet 2 +00.0°C

This form indicates the values of the unit’s reference and outlet water. If there are 2 circuits, the outlet temperatureis given for both of them.

I_0_2Water TemperatureOutlet 3 00.0°COutlet 4 00.0°C

If the unit features 3 or 4 exchangers, this form displays the outlet water temperature of each one.

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I_0_13RecoveryTemperature 00.0

This form indicates the temperature of the recovery water. The form is only available in the loop if the recoveryfunction is managed by the control.

I_0_12Water TemperatureWell 1 00.0°CWell 2 00.0°C

This form indicates the well water temperature values of circuits 1 and 2 at the outlet of the condenser/evaporatorexchangers of the heat pump units.

I_0_12aWater TemperatureWell 3 00.0°CWell 4 00.0°C

This form displays the same values as the preceding one, but for circuits 3 and 4.

I_0_11ExternalTemperature 00.0°CInlet WaterTemperature 00.0°C

This form displays the value detected by the probes for external air and inlet water.The form with relative fields is available on the loop of units with free cooling.

I_0_3Compressor 1H 00.0 L 00.0 O 00.0B 00.0 B 00.0D 00.0 D 00.0

These forms, that depend on the number of available compressors, indicate the pressure values of the sensors forhigh and low pressure and, if required, for oil. The high and low pressure values can also come with their relativegas temperature.The temperature of liquid “B” and vapour “D” is indicated if there are gas mixtures.



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I_0_7Digital InputStatus 1 - 25CCCCC CCCCC CCCCCCCCCC CCCCC

This form indicates the status of digital inputsC = closed; A = open

I_0_8Digital OutputStatus 1 - 18AAAAA AAAAAAAAAA AAA

This form indicates the status of digital outputsC = closed; A = open

I_0_9Digital OutputStatus 19 - 36AAAAA AAAAAAAAXA AAA

If the unit comprises 2 cards, this form will indicate the status of the second card’s digital outputs.C = closed; A = open

I_0_10Fan Speed Y2 000%|Fan Speed Y4 000%|

This form indicates the percentage of the signal sent by the control to the 2 outputs that manage the speedregulators.

I_0_14Free Cool.Valv. 000%|Recovery Valve 000%|

This form indicates the percentage of the signal sent to the Free cooling valve and recovery valve, providing thefunctions are enabled.

I_0_15AbsorbedCurrent 000.0A

This form indicates the current absorbed by the unit when a current limit order is enabled.

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I_0_16Coil TemperatureI1 00.0°C I3 00.0°CI2 00.0°C I4 00.0°C

This form indicates the value detected by the probes on the condenser/evaporator coils of the heat pump units.The form with relative fields is available for heat pump units when there are probes on the coils.

I_0_17Gas DischargeTemperatureC1 000°C C2 000°CC3 000°C C4 000°C

This form indicates the temperature of delivery gas of compressors in the screw units.

I_0_18Circuit 1 Valve 1Steps 0000 SH 00.0°CEvap 00.0b 00.0°CT.asp 00.0°C

This form and the following ones indicate the number of steps at which the valve is working, the value ofoverheating, the suction pressure and its conversion in degrees, and the relative temperature.The number of masks is equal to the number of electronic expansion valves installed.

I_0_22Firmware vers.Cirecuit 1Driver 1 000 000Driver 2 000 000

This set of forms indicates the software version for each driver.

INFO_1CHILLER/HP Ind. 00BLUE BOXCod. FLBB0MP20AVer. 2.*** dd/mm/yy

This form indicates the code, version and issue date of the program, and the unit’s pLAN address for boss-runneroperation.

INFO_2Testing Date dd/mm/yyyyInspector Code '00000

This form indicates the testing date and inspector code

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4 UNIT OPERATION

4.1.1 Unit in stand-byThe unit is in stand-by when it is correctly powered electrically and hydraulically, but not enabled to operate.In this status, the control will display the values read by the analog inputs and the status of the digital inputs andoutputs.To enable the unit from stand-by mode:

- close the digital input for remote consent between terminals 1 and 2;- give the command to start up on the keyboard or via serial port from supervisor and/or Boss.

4.1.2 Abilitazione e arresto dell’unitàThe unit is enabled to operate when the outputs can be activated automatically in accordance with the system’srequirements.This occurs when there is simultaneous presence of all the consents for operation, as described in the previousparagraph.The key pad is activated through the “On/off” mask.The unit detects the system’s requirements by reading the water probe if it operates as stand-alone, or by means ofthe signal sent from the boss if it operates on a network with other devices.The control’s outputs that command the various parts of the chiller unit are activated in accordance with the relativeoperation modes.

4.1.3 Chiller unit and heat pump operationAll chiller units refrigerate water.Heat pump units refrigerate water for summer air conditioning, but can also heat it to provide heating in winter.Water temperatures for cooling and heating are preset by the manufacturer to standard norms, but can be modified,within limits, as required.Change from summer to winter mode can either be automatic by external input or managed through the keyboard.The changeover mode is set by the manufacturer and can only be modified by a technician.Water temperatures and changeover mode settings, when this can be keyed in, are accessed through the “Set”branch mask.

4.1.4 Double set operationSome units on special plants can supply cold water at two different temperatures, usually, but not necessarily, onepositive and one negative.The two operational values in “set”, are preset by the manufacturer, according to the project requirements, but canbe modified within the established limits.Operational settings may be changed automatically by external input or managed through the keyboard.Operational settings change mode is set by the manufacturer and can only be modified by a technician.Operational settings and change mode settings, when this can be keyed in, are accessed through the “Set” branchmask.

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5 ALARM FORMS [OD3]

Any malfunction detected by the control enables an alarm form.Enabled alarm forms only appear after the “alarm” button is pressed.Press the “alarm” button once to deactivate the buzzer; press the button again and the enabled alarm form willappear; if there are no enabled alarms, the “ALL_1” form will appear. Press the button a third time to cancel anyalarms.If you remain within an alarm form for ten minutes without pressing any buttons, the display will take you back to themenu’s main page.

5.1.1 Summary of alarm forms

ALL_1

No Alarm

This form appears when you press the “alarm” button twice and no alarms are enabled.

ALL_2

Flow SwitchAlarm

In accordance with the various delays, this form appears when the water flow switch’s digital input is open. It’sintervention does not enable start-up of the compressors while any pumps remain active. The alarm can only becancelled manually using the keyboard.

ALL_3

Pump 1Overload

This form appears instantly when the input of the thermal overload relay of pump 1 is opened.Alarm intervention causes the pump to stop and enabling of the spare pump, if available. If there isn’t a sparepump, the unit will be blocked. The alarm can only be cancelled manually using the keyboard.

ALL_4

Pump 2Overload

This form appears instantly when the input of the thermal overload relay of pump 2 is opened.Alarm intervention causes pump 2 to stop and starts pump 1. If pump 1 is not available, the unit will be blocked. Thealarm can only be cancelled manually using the keyboard.

ALL_5High PressureCompressor 1

This form will appear if the digital input of the high pressure switch of circuit 1 is open or if the pressure detected bythe high pressure transducer of circuit 1 exceeds the alarm value and, with the set procedure, causes the block.“Circuit” will appear instead of “Compressor” for tandem units.

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ALL_11Low PressureCompressor 1

This form will appear if the pressure read by the low pressure transducer of circuit 1 is lower than the values of lp1or lp2, depending on the operation status. The alarm will be delayed, depending on the case and set procedure.“Circuit” will appear instead of “Compressor” for tandem units.



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ALL_17

Compressor 1Oil DifferentialPressure Switch

This form will appear when the difference between the oil delivery pressure and suction pressure is less than the setdifferential.After the compressor start-up delay, the alarm is enabled and causes it to stop. Reset is manual.

ALL_18



ALL_19



ALL_20


This form will appear when the difference between the oil delivery pressure and suction pressure is less than the setdifferential.

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After the compressor start-up delay, the alarm is enabled and causes it to stop. Reset is manual.

ALL_23

Compressor 1Thermal OverloadProtection

Opening of the relative digital input causes compressor 1 to stop immediately and this form is displayed.The alarm can only be cancelled manually.

ALL_24



ALL_25



ALL_26



ALL_27

Unit NeedsMaintenance

This form appears when the unit’s working hours exceed the value set for maintenance.The alarm only involves a signal, does not interrupt unit operation and can only be cancelled in the maintenancebranch.

ALL_28

Compressor 1Needs Maintenance

This form appears when the working hours of compressor 1 exceed the value set for maintenance.The alarm only involves a signal, does not interrupt unit operation and can only be cancelled in the maintenancebranch.

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ALL_29



ALL_30

Compressor 3Needs Manitenance


ALL_31



ALL_34

Punp 1Needs Maintenance

This form appears when the working hours of pump 1 exceed the value set for maintenance.The alarm only involves a signal, does not interrupt pump operation and can only be cancelled in the maintenancebranch.

ALL_35

Pump 2Needs Maintenance

This form appears when the working hours of pump 2 exceed the value set for maintenance.The alarm only involves a signal, does not interrupt pump operation and can only be cancelled in the maintenancebranch.

ALL_36

Defrost Endfor Limit TimeOvercoming

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This form is enabled when one defrost procedure ends after exceeding the maximum time. The form is not relatedto the alarm’s digital output and can be cancelled manually, or automatically when a defrost procedure endsnormally.

ALL_36_1

Compressor 1 DefrostEnd for Limit TimeOvercoming

This form is enabled when there are separate defrost procedures and that of circuit 1 ends after exceeding themaximum time. The form is not related to the alarm’s digital output and can be cancelled manually, or automaticallywhen a defrost procedure ends normally.

ALL_36_2



ALL_36_3



ALL_36_4



ALL_37

Well WaterFlow Switch

The alarm occurs when the relative digital input is open with at least one compressor in operation. The alarm isdelayed and causes the unit’s compressor(s) to stop. Reset is manual.

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ALL_38_1

FanProtections 1

This form is enabled when the fans’ thermal overload relay 1 alarm input is open with at least one compressor inoperation; the alarm can only be cancelled manually with the input closed.Index “1” does not appear for units with only one set of fans.

ALL_38_2

FanProtections 2

This form is enabled when the fans’ thermal overload relay 2 alarm input is open with at least one compressor inoperation; the alarm can only be cancelled manually with the input closed.

ALL_38_3

FanProtections 3


ALL_38_4

FanProtections 4


ALL_38_5

FansFC Protections 1

This form is enabled when the free cooling fans’ thermal overload relay 1 alarm input is open. The alarm stops therelative fans and the alarm can only be cancelled manually with the input closed.

ALL_38_6



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ALL_38_7



ALL_38_8



ALL_39User Water InletHigh TemperatureThresholdOvercome

This alarm is enabled if the water temperature value exceeds the maximum value for summer operation andremains above the threshold for longer than the “threshold overcome delay”, with the unit in operation.The alarm stops the compressors, but the pump continues to operate. The alarm can be cancelled manually at anytime, the compressors are re-started and the delay is reset.

ALL_40User Water InletLow TemperatureThresholdOvercome

This alarm is enabled if the water temperature value falls below the low value for winter operation and breaks thethreshold for longer than the “threshold overcome delay”, with the unit in operation.The alarm stops the compressors, but the pump continues to operate. The alarm can be cancelled manually at anytime, the compressors are re-started and the delay is reset.

ALL_41User Water OutletLow Temp.ThresholdOvercome: ManualReset at Min. 00.0°C

The alarm is enabled when the user water outlet temperature is less than the anti-freeze value during the coolingoperation.The alarm stops the unit’s compressors, but the pumps continue to operate. The alarm can be manually reset whenthe outlet temperature exceeds the increased intervention value of the relative differential.

ALL_42Well Water OutletLow Temp.ThresholdOvercome: ManualReset at Min. 00.0°C

The alarm is enabled when the well water outlet temperature is less than the anti-freeze value during the heatingoperation.The alarm stops the unit’s compressors.

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The alarm can be manually reset when the outlet temperature exceeds the increased intervention value of therelative differential.

ALL_43High TemperatureThresholdOvercomeUser Water Outlet

The alarm is enabled when the user water outlet temperature is greater than the max user value during the heatingoperation.The alarm stops the unit’s compressors, but the pumps continue to operate. The alarm can be manually reset whenthe outlet temperature falls below the intervention value of the relative differential.

ALL_44High TemperatureThresholdOvercomeWell Water Outlet

The alarm is enabled when the well water outlet temperature for water/water units is greater than the max wateroutlet temperature value during summer operation.The alarm stops the unit and can be manually cancelled when the outlet temperature falls below the decreasedintervention value of the relative differential.

ALL_45User Water Outlet 1Low Temp.ThresholdOvercome: ManualReset at Min. 00.0°C

The alarm is enabled when the water outlet temperature of circuit 1 is less than the anti-freeze value set in theService branch.The alarm stops compressor 1 and can be reset manually when the water temperature exceeds the differential’sincreased intervention value.





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ALL_51Well Water Outlet 1Low Temp.ThresholdOvercome: ManualReset at Min. 00.0°C

The alarm is enabled when the well water outlet temperature of the exchanger of circuit 1 is less than the anti-freeze value set in the Service branch.The alarm stops compressor 1 and can be reset manually when the water temperature exceeds the differential’sincreased intervention value.







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ALL_57High TemperatureThresholdOvercomeUser Water Outlet 1

The alarm is enabled when the water outlet temperature of user circuit 1 is greater than the max user value duringheating operation.The alarm stops compressor 1 but the pumps continue to operate. The alarm can be reset manually when the outlettemperature falls below the decreased intervention value of the relative differential.







ALL_63High TemperatureThresholdOvercomeWell Water Outlet 1

The alarm is enabled when the temperature of well water outlet 1 is greater than the max well water value duringthe heating operation.The alarm stops compressor 1.The alarm can be manually reset when the outlet temperature falls beneath the decreased intervention value of therelative differential.

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ALL_70

Phase SequenceFailure

The alarm is activated when the input for supply control is enabled to check correct phase sequence and remainsopen for more than 60 seconds after supply of the control.The alarm prevents start-up of the unit and can only be cancelled by disconnecting supply to the control.

ALL_71

Lacking Aux. Supply

The alarm is activated when the input for supply control is enabled for checking presence of supply and is open.The alarm stops operation of the unit, which starts automatically with a delay once the input is closed.

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ALL_72Failed ConnectionBetween pLANCards

The alarm is enabled when the Master registers incongruence between whatever is configured on the control andwhat is actually connected.

ALL_73

Faulty Clock

The alarm is enabled when the control detects malfunction of the clock.

ALL_74Reference Temperat.AlarmProbe Faulty or notConnected

The alarm is enabled when detected values are outside of the relative input’s operation limits.

ALL_76High Pressure 1AlarmProbe Faulty or notConnected


ALL_77Low pressure 1AlarmProbe Faulty or notConnected


ALL_78Oil Pressure 1AlarmProbe Faulty or notConnected


ALL_79Outlet 1AlarmProbe Faulty or notConnected


31















32











ALL_92AmbientAlarmProbe Faulty or notConnected


ALL_93Recovery ProbeAlarmProbe Faulty or notConnected


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ALL_94RecoveryAlarmHigh Pressure 1

The alarm is enabled if the control interrupts recovery when circuit 1 reaches the maximum permitted pressure,corresponding to the value set in HP2.







ALL_98TransformerAlarm Probe Faultyor not connected

The alarm is enabled when the amperometric transformer is not properly connected.The control does not limit the unit’s current absorption when the alarm is active

ALL_99Serial CardFaulty or notConnected

The alarm is enabled when the control detects incongruence between the software settings and the installed serialcard.

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ALL_100Aditional Cardoff-line

The alarm is enabled when there isn’t the additional card with address “31”, as required by the configured functions.

ALL_121AlarmCompressor 1Gas Discharge

The alarm is enabled when the temperature of compressor 1’s discharge gas exceeds the set limit.







ALL_130Coil TemperatureAlarmProbe Faulty or notConnected

The alarm is enabled when the probe is faulty or not connected, even if expected.

ALL_131Coil Temperature 1AlarmProbe Faulty or notConnected


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ALL_135Gas Discharge 1Alarm Probe Faultyor not Connected








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ALL_140Reference WaterTemperature AlarmProbe Faultyor not Connected


ALL_150Well Water OutletAlarmProbe Faulty or notConnected


ALL_151Well Water OutletAlarm 1Probe Faulty or notConnected








ALL_155WarningUnit Running InLow Efficiency

The warning signal is enabled during operation when the difference in temperature between the unit’s inlet andoutlet is not permissible.This warning signal does not stop anything.

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ALL_156WarningLow DifferenceBetween HP-LP

The warning signal is enabled during operation when the difference in pressure of one of the active cooling circuitsis less than the minimum set value.This warning signal does not stop anything.

ALL_157UnloadAlarm

The alarm is enabled when there is a feedback signal and the detected position does not correspond to thatpermitted by the control.

ALL_158Lan disconnectedDriver:

This form is the same for all signals when the unit’s drivers are not propertly connected to the network.The last line defines the missing drivers.

ALL_159Driver1 MOP Alarm





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This set of forms indicates that the limit for intervention of the MOP protection set in the relative drivers has beenreached.

al_180_valv_errNo close valveduring driverpower OFF N N N N N N N N

This form, which appears with alarm messages if a valve is not fully closed, helps to define said valve with the “N”or “Y” sequence in the last line.

al_181_htaDriver evaporationhigh temperature

This form appears with alarm messages only if a driver detects that the high temperature limit for suction has beenreached.The reference numbers of the drivers signalled by the alarm are defined in the last line (between 1 and 8).

BLUE BOX Air With CareBLUE FROST Refrigeration

are trade marks

BLUE BOX GROUP

BLUE BOX GROUP s.r.l.

I - 30010 Cantarana di Cona (VE) - Via Valletta, 5Tel +39 049 9716300 - Fax +39 049 9704105

[email protected]

Technical data may change without notice101723B02 Issue 03.08 / Sostituisce 10.07

101723b02 pco3 chiller - user

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