30rw - 30rwa pro-dialog control · 4 3 - hardware description 3.1 - general figure 1 - control...

30RW - 30RWAPRO-DIALOG Control

Operation and maintenance instructions

2

GENERAL LEGENDEach of the following drawings is replaced in the whole document by the corresponding explanation:

Up arrow

Down arrow

Return key

Start/stop button

DELTA T. Example: temperature difference between entering and leaving heat exchanger temperatures

means character is flashing

The cover graphics are solely for illustration and forms no part of any offer for sale or any sale contract.The manufacturer reserves the right to change the design at any time without notice.

TAbLE Of cONTENTs

1 - sAfETY cONsIDERATIONs .............................................................................................................................................. .31.1 - General ..................................................................................................................................................................................... .31.2 - Avoid electrocution ................................................................................................................................................................. .3

2 - GENERAL DEscRIPTION ................................................................................................................................................... .32.1 - General ..................................................................................................................................................................................... .32.2 - Abbreviations used.................................................................................................................................................................. .3

3 - HARDWARE DEscRIPTION .............................................................................................................................................. .43.1 - General ..................................................................................................................................................................................... .43.2 - Electrical supply to boards ..................................................................................................................................................... .43.3 - Light emitting diodes on boards ............................................................................................................................................ .43.4 - The sensors ............................................................................................................................................................................... .43.5 - The controls .............................................................................................................................................................................. .53.6 - Connections at the user’s terminal block ............................................................................................................................. .5

4 - sETTING UP PRO-DIALOG PLUs cONTROL .............................................................................................................. .74.1 - Local interface general features ............................................................................................................................................ .74.2 - Unit start/stop control............................................................................................................................................................. .84.3 - Menus ....................................................................................................................................................................................... .9

5 - PRO-DIALOG PLUs cONTROL OPERATION............................................................................................................ .245.1 - Start/stop control ................................................................................................................................................................... .245.2 - Heating/cooling operation.................................................................................................................................................... .255.3 - Evaporator water pump control .......................................................................................................................................... .255.4 - Condenser water pump control ........................................................................................................................................... .255.5 - Control interlock contact ..................................................................................................................................................... .255.6 - Control point.......................................................................................................................................................................... .255.7 - Demand limit ......................................................................................................................................................................... .275.8 - Night mode ............................................................................................................................................................................. .275.9 - Capacity control .................................................................................................................................................................... .275.10 - Head pressure control......................................................................................................................................................... .275.11 - Control of a boiler ............................................................................................................................................................... .285.12 - Master/slave assembly ........................................................................................................................................................ .285.13 - Controlling Pro-Dialog Plus units with a System Manager............................................................................................ .28

6 - DIAGNOsTIcs - TROUbLEsHOOTING ........................................................................................................................ .296.1 - General ................................................................................................................................................................................... .296.2 - Displaying alarms .................................................................................................................................................................. .296.3 - Resetting alarms .................................................................................................................................................................... .296.4 - Alarm codes ........................................................................................................................................................................... .30

3

1 - SAFETY CONSIDERATIONS

1.1 - General

Installation, start-up and servicing of equipment can be hazardous if certain factors particular to the installation are not considered: operating pressures, presence of electrical components and voltages and the installation site (elevated plinths and built-up up structures). Only properly qualified installation engineers and highly qualified installers and technicians, fully trained for the product, are authorised to install and start-up the equipment safely. During all servicing operations all instructions and recommendations which appear in the installation and service instructions for the product, as well as on tags and labels fixed to the equipment and components and accompanying parts supplied separately, must be read, understood and followed.• Apply all standard safety codes and practices.• Wear safety glasses and gloves.• Use the proper tools to move heavy objects. Move

units carefully and set them down gently.

1.2 - Avoid electrocution

Only personnel qualified in accordance with IEC (Inter-national Electrotechnical Commission) recommendations may be permitted access to electrical components. It is particularly recommended that all sources of electricity to the unit be shut off before any work is begun. Shut off the main power supply at the main circuit breaker or isolator.

IMPORTANT: This equipment uses and emits electro-magnetic signals. Tests have shown that the equipment conforms to all applicable codes with respect to electro-magnetic compatibility.

RISK OF ELECTROCUTION: Even when the main circuit breaker or isolator is switched off, certain circuits may still be energised, since they may be connected to a separate power source.

RISK OF BURNS: Electrical currents cause components to get hot either temporarily or permanently. Handle power cable, electrical cables and conduits, terminal box covers and motor frames with great care.

2 - GENERAL DESCRIPTION

2.1 - General

Pro-Dialog is a system for controlling single or dual-circuit 30RW water-cooled liquid chillers (cooling only and heat pump units) or 30RWA units with remote condenser. Pro-Dialog controls compressor start-up needed to maintain the desired heat exchanger entering or leaving temperature. Safety devices are constantly monitored by Pro-Dialog to ensure their safe operation. Pro-Dialog also gives access to a Quick Test program covering all inputs and outputs.

All Pro-Dialog Plus controls can work in accordance with three independent modes:• Local mode: the machine is controlled by commands

from the user interface.• Remote mode: the machine is controlled by remote

contacts (volt-free contacts).• CCN mode: the machine is controlled by commands

from the Carrier Comfort Network (CCN). In this case, a data communication cable is used to connect the unit to the CCN communication bus.

The operating mode must be chosen with the Start/Stop button described in section 4.2.1. When the Pro-Dialog Plus system operates autonomously (Local or Remote mode) it retains all of its own control capabilities but does not offer any of the features of the CCN network.

2.2 - Abbreviations used

In this manual, the refrigeration circuits are called circuit A and circuit B. The compressors in circuit A are labelled A1 and A2. Those in circuit B are B1 and B2.

The following abbreviations are used frequently:CCN : Carrier Comfort NetworkCCn : Operating type: CCNLED : Light Emitting DiodeLOFF : Operating type: Local OffL-On : Operating type: Local On modeL-Sc : Operating type: Local On following a time

scheduleMASt : Operating type: master unit (master/slave

assembly)rEM : Operating type: by remote contactsSCT : Saturated Condensing TemperatureSIO : Sensor Bus (internal communication bus linking

the basic board to the slave boards)SST : Saturated Suction TemperatureTXV : Thermal Expansion Valve

4

3 - HARDWARE DESCRIPTION

3.1 - General

Figure 1 - Control board

3.2 - Electrical supply to boards

All boards are supplied from a common 24 V a.c. supply referred to earth.

CAUTION: Maintain the correct polarity when connecting the power supply to the boards, otherwise the boards may be damaged.

In the event of a power supply interrupt, the unit restarts automatically without the need for an external command. However, any faults active when the supply is interrupted are saved and may in certain cases prevent a circuit or unit from restarting.

3.3 - Light emitting diodes on boards

All boards continuously check and indicate the proper operation of their electronic circuits. A light emitting diode (LED) lights on each board when it is operating properly.• The red LED flashing for a 2 second period on the

NRCP-BASE board indicates correct operation. A different rate indicates a board or a software failure.

• On dual-circuit units or units equipped with optional board, the green LED flashes continuously on all boards to show that the board is communicating correctly over its internal bus. If the LED is not flashing, this indicates a SIO bus wiring problem.

• On the master board, the orange LED flashes to show when all communication is via the CCN bus.

3.4 - The sensors

Pressure sensorsTwo types of electronic sensors (low and high pressure) are used to measure the suction and discharge pressure in each circuit.

ThermistorsThe evaporator and condenser (option) water sensors are installed in the entering and leaving side. An optional water system temperature sensor can be used for master/slave assembly control (in the case of leaving water control).

For certain options an outdoor temperature sensor or drycooler water temperature sensor is available.

Legend1 CCNconnector2 RedLED,statusoftheboard3 GreenLED,communicationbusSIO4 OrangeLED,communicationbusCCN5 Remotemasterboardcustomercontrolconnectioncontacts6 Remoteslaveboardcustomercontrolconnectioncontacts7 Masterboardcustomerconnectionrelayoutputs8 Slaveboardcustomerconnectionrelayoutputs9 MasterNRCPbasicboard10 SlaveNRCPbasicboard

The control system consists of an NRCP-BASE board for single-circuit units and two NRCP-BASE boards (a master and a slave board) for dual-circuit units. Drycooler or remote air-cooled condenser control is possible with an additional PD-AUX1 board. All boards communicate via an internal SIO bus. The NRCP-BASE boards continuously manage the information received from the various pressure and temperature probes. The NRCP-BASE master board incorporates the program that controls the unit.

The user interface consists of two display blocks with up to 26 LEDs and 16 buttons (according to unit type). It is connected to the main board and gives access to a full array of control parameters.

5

6

78

9

10

3

14

2 3

5

3.6 - Connections at the user’s terminal block

3.6.1 - General descriptionThe contacts below are available at the user’s terminal block on the NRCP-BASE board (see figure 1). Some of them can only be used if the unit operates in remote operating type (rEM). The following table summarises the connections at the user’s terminal block.

3.5 - The controls

Evaporator pumpThe controller can regulate one or two evaporator pumps and takes care of the automatic changeover between pumps.

condenser pumpThe controller can regulate one or two condenser pumps (fixed or variable speed) and takes care of the automatic changeover between pumps.

Evaporator heaterIt protects the evaporator (and the pipe heater for units without pump) against freezing if the unit is off.

boilerThis relay output authorises start/stop of a boiler.

Single-circuit unitsDescription Connector/

channelTerminal Board Remarks Remarks

Alarmrelayoutput J3/CH24 30-31 NRCP-BASE Indicatesalarms Volt-freecontact24Va.c.48Vd.c.max,20Va.c.ormin.20Vd.c.,3Amax,80mAmin,externalpowersupply.

Connector:4pinWAGO734-104pitch3.5;oneperboardneeded.

Boilerrelayoutput J3/CH25 37-38 NRCP-BASE Boilerstart/stopcontroloutput.Seesection5.13.

Contact1:Start/stop

J4/CH8 32-33 NRCP-BASE Thecontactsareusedforunitstart/stopandheat/coolcontrol.Theyareonlytakenintoaccountiftheunitisunderremoteoperationcontrol(rEM).

24Va.c.,20mA

Connector:8pinWAGO734-168,pitch3.5

Contact2:Heat/coolorheatreclaimselection

J4/CH9 63-64 NRCP-BASE

Contact3:Demandlimitselectionorsetpointselection

J4/CH10 73-74 NRCP-BASE Dependingontheconfiguration,thisdrycontactcanbeusedforremotesetpointselectionordemandlimitselection(seesections4.3.11.3and3.6.2).- Theremotesetpointselectioncontactisonlytakenintoaccountiftheunitisinremotecontroloperatingtype.

- Theremotedemandlimitselectioncontactisactivewhatevertheoperatingtypeoftheunit.

Usersafetyloopinput J4/CH11a 34-35 NRCP-BASE Thiscontactismountedinserieswiththewaterflowcontrolcontact.Itcanbeusedforanycustomersafetyloopthatrequiresthattheunitisstopped,ifitisopen.Ifitisunusedthiscontactmustbebridged.

ConnectiontoCCN J12 1-2-3 NRCP-BASE ARS-485busisusedforconnectiontotheCCN.- Pin1:signal+- Pin2:ground- Pin3:signal-


6

3.6.2 - Demand limit or setpoint volt-free contact for single-circuit unitsOn single-circuit units contact 3 determines the selection of demand limit or setpoint, based on the configuration (see User Configuration 1 menu).

Demand limit selection Setpoint selection100% (no limit) Limit 1 Setpoint 1 Setpoint 2

Contact 3 Open Closed Open Closed

3.6.3 - Demand limit volt-free contact for dual-circuit unitsOn dual-circuit units the operation of the demand limit selection contacts is multiplexed. The demand limit setpoints are adjustable in the setpoint menu (see section 4.3.8).

100% (no limit) Limit 1 Limit 2 Limit 3Contact 3 Open Closed Open ClosedContact 4 Open Open Closed Closed

3.6.4 - Water setpoint selection volt-free contact with multiplexing for dual-circuit unitsOn dual-circuit units the operation of the cold water or hot water setpoint selection contacts is multiplexed. The set-points are adjustable in the setpoint menu (see section 4.3.8). Auto means that the active setpoint is determined by the setpoint schedule (see section 5.6.1).

Cooling modeSetpoint 1 Setpoint 2 Setpoint 3 Auto

Contact 5 Open Open Closed ClosedContact 6 Open Closed Open ClosedHeating mode

Setpoint 1 Setpoint 2 Setpoint 3 AutoContact 5 Open Open Closed ClosedContact 6 Open Closed Open Closed

Dual-circuit unitsDescription Connector/channel Terminal Board Remarks RemarksAlarmrelayoutputcircuitA J3/CH24 30A-31A MasterNRCP-BASE Indicatesalarms,circuitA Volt-freecontact24Va.c.48

Vd.c.max,20Va.c.ormin.20Vd.c.,3Amax,80mAmin,externalpowersupply.

Connector:4pinWAGO734-104pitch3.5.Oneperboardneeded.

AlarmrelayoutputcircuitB J3/CH24 30B-31B SlaveNRCP-BASE Indicatesalarms,circuitBBoilerrelayoutput J3/CH25 37-38 MasterNRCP-BASE Boilerstart/stopcontroloutput.Seesection5.13.

Contact1:start/stop J4/CH8 32-33 MasterNRCP-BASE Thecontactsareusedforunitstart/stopandheat/coolcontrol.Theyareonlytakenintoaccountiftheunitisunderremoteoperationcontrol(rEM).

24Va.c.,20mA


Contact2:heat/coolorheatreclaimselection

J4/CH9 63-64 MasterNRCP-BASE

Contact3:demandlimitselection

J4/CH10 73-74 MasterNRCP-BASE Thesedrycontactsareusedfordemandlimitselection.Seedescriptionofthesecontactsinsection3.6.2.Theremotedemandlimitselectioncontactisactivewhatevertheoperatingtypeoftheunit.

Contact4:demandlimitselection

J4/CH10 75-76 SlaveNRCP-BASE

Contact5:setpointselection

J4/CH8 65-66 SlaveNRCP-BASE Thesedrycontactsareusedforsetpointselection.Theyareonlytakenintoaccountiftheunitisinremotecontroloperatingtype(rEM).Seethedescriptionofthesecontactsinsections3.6.4.

Controlcontact6:setpointselection

J4/CH9 67-68 SlaveNRCP-BASE

Usersafetyloopinput J4/CH11a 34-35 MasterNRCP-BASE Thiscontactismountedinserieswiththewaterflowcontrolcontact.Itcanbeusedforanycustomersafetyloopthatrequiresthattheunitisstopped,ifitisopen.Ifitisunusedthiscontactmustbebridged.

ConnectiontoCCN J4/CH12 1-2-3 MasterNRCP-BASE ARS-485busisusedforconnectiontotheCCN.- Pin1:signal+- Pin2:ground- Pin3:signal-


7

Main interfaceButton Name Description

Menu Permitstheselectionofamainmenu.Eachmainmenuisrepresentedbyanicon.Theiconislitifactive.

Uparrow Permitsscrollingthroughthemenuitems(inthetwo-digitdisplay).Ifthemodificationmodeisactivethisbuttonauthorisesincreaseofthevalueofanyparameter.

Downarrow Permitsscrollingthroughthemenuitems(inthetwo-digitdisplay).Ifthemodificationmodeisactivethisbuttonauthorisesdecreaseofthevalueofanyparameter.

Enter Givesaccesstothemodificationmode,validatesamodificationordisplaysexpandeditemdescription.

Start/stop Authorisesstartorstopofthechillerinlocalmodeormodificationofitsoperatingtype.

Main interface menu LED’sLED Name Description

INFORMATIONmenu Displaysthegeneraloperatingparametersfortheunit.

TEMPERATURESmenu Displaystheunitoperatingtemperatures.

PRESSURESmenu Displaystheunitoperatingpressures.

SETPOINTSmenu Displaystheunitsetpointsandenablesthemtobemodified.

INPUTSmenu Displaysthestatusoftheunitdigitalandanalogueinputs.

OUTPUTS/TESTSmenu Displaysthestatusoftheunitoutputsandenablesthemtobetested.

CONFIGURATIONSmenu Displaystheunitconfigurationandenablesittobemodified.

ALARMSmenu Displaysactivealarms.

ALARMSHISTORYmenu Displaysthehistoryofthealarms.

OPERATINGLOGmenu Displaystheoperatingtimesandnumberofstartsfortheunitandthecompressors.

Main interfaceIt gives access to all Pro-Dialog Plus data and operating functions. It consists of:• A two-digit display showing the number of the item

selected.• A four-digit display showing the contents of the item

selected.• LEDs and buttons for unit start/stop, menu selection,

menu item selection and value adjustment.

Main interface Summary interface

Menu block

4 - SETTING UP PRO-DIALOG PLUS CONTROL

4.1 - Local interface general features

Dual-circuit 30RWA interface Dual-circuit 30RW interface

Main interface Summary interface

Menu block

The local interface enables a number of operating parameters to be displayed and modified.

The interface consists of two distinct parts: the main interface (left-hand section) and the summary interface (right-hand section).

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The summary interface (right hand section) includes a mimic diagram of the unit, together with push-buttons and LEDs. It gives quick access to the main operating parameters of the unit.

Summary interface LED’sLED Indication when lit

Green LED:TheunitisauthorisedtostartorisalreadyrunningRed LED:-Lit:circuitAorunitshutdownbyalarm-Flashing:circuitAorunitrunningwithalarmpresentRed LED:-Lit:circuitBorunitshutdownbyalarm-Flashing:circuitBorunitrunningwithalarmpresentRed LED: Waterflowswitchdefaultorusersafetylockopen.Green LED: Theevaporatorpumpisrunning.Yellow LEDs:Fromtoptobottom-start/stopstatusofcompressorA1andA2orB1andB2.FlashingLEDindicatesthatthecircuitisintheappropriateprotectionmode(AorB).Green LED: Theunitoperatesinheatingmode.Green LED:Theunitoperatesincoolingmode.

Summary interface push buttonsButton Display

Bluebutton:evaporatorenteringorleavingwatertemperaturein°CRedbutton:condenserenteringorleavingwatertemperaturein°CGraybutton:outdoorairtemperaturein°CControlpoint(setpoint+reset)in°C

Press1:circuitA/BdischargepressureinkPaPress2:circuitA/Bsaturatedcondensingtemperaturein°C

Press1:circuitA/BsuctionpressureinkPaPress2:circuitA/Bsaturatedsuctiontemperaturein°C

Press1:compressorA1/B1operatinghoursinh/10orh/100Press2:compressorA2/B2operatinghoursinh/10orh/100

4.2 - Unit start/stop control

4.2.1 - DescriptionThe unit start/stop can be controlled by one of the following methods:• Locally on the actual unit (Local control type)• By remote control with the aid of user contacts

(remote control type)• By CCN control with the aid of the CCN (CCN

control type)

The main interface includes a Start/Stop button which can be used to stop or start the unit in the local operating type or to select the remote or CCN operating type.

The available operating types are described in the following table.

The following operating types can be selected using the start/stop button:

Operating types4-digit display

Description

LOFF Local Off.Theunitishaltedinlocalmode.L-On Local On. Theunitisinlocalcontrolmodeandisauthorisedtostart.L-Sc* Local On - timer control.Theunitisinlocalcontrolmode.Itis

authorisedtostartiftheperiodisoccupied.Ifthetimerprogramforunitoperationisunoccupied,theunitremainsshutdownuntiltheperiodbecomesoccupied.ThisisdisplayediftheunitisequippedwithanoptionalCCN/clockboard.Seesection3.1.

CCN* CCN. TheunitiscontrolledbyCCNcommands.ThisisdisplayediftheunitisequippedwithanoptionalCCNclockboard.Seesection3.1.

rEM* Remote. Theunitiscontrolledbyremotecontrolcontacts.MAST* Master Unit.Theunitrunsasamasterinatwounitlead/lag

arrangement.Thisisdisplayediftheunitisconfiguredformaster/slavecontrolandiftheunitisequippedwithanoptionalCCNclockboard.Seesection5.11.

Legend* Displayediftheconfigurationrequiresit. Section5.1givesamoredetaileddescriptionofthecommandstostart/stop

theunit,analysedbyoperatingtype.

4.2.2 - stopping the unit in local modeThe unit can be stopped in local mode at any time by pressing the Start/Stop button.

To stop the unitButton Action 2-digit

display4-digit display

PresstheStart/Stopbuttonforlessthan4seconds(oneshortpressisenough).

C LOFF

Ifthebuttonisreleased,theunitstopswithouttheneedforfurtheraction

t LOFF

4.2.3 - starting unit and selecting an operating typeThe unit can be started in local mode, or unit operating type can be changed at any time using the Start/Stop button. In the example that follows, the unit is stopped (LOFF) and the user wants to start the unit in local mode.

Changing the operating typeButton Action 2-digit

display4-digit display

Continuallypresstheoperatingtypeselectionbuttonformorethan4seconds.

C LOFF

HolddowntheStart/Stopbutton.Theavailableoperatingtypesaredisplayedonebyoneuntilthebuttonisreleased.

L-OnL-Sc

rEMReleasetheStart/Stopbuttoniftheoperatingtypeyouwantisdisplayed(inthisexampleL-On).“C”flashesinthe2-digitdisplaytoshowthatthecontrollerisawaitingconfirmation.

L-On

PresstheEnterbuttontoconfirmtheoperatingtypeselected(inthisexample:L-On).“t”isdisplayedinthe2-digitdisplaytoindicatetheoperatingtypeselected.IftheEnterbuttonisnotpressedsoonenough,thecontrollerwillcancelthechangeandcontinuetousethepreviousoperatingtype.

t L-On

9

4.3 - Menus

4.3.1 - selecting a menuThe MENU button authorises you to select a menu from the 10 main menus that are available. Each time you press this button one of the 10 LEDs lights up in turn alongside each of the icons representing a main menu. The active menu is the one against which the LED is lit. If a menu is empty then its LED is not lit. To scroll quickly through the menus, hold the MENU button down.

4.3.2 - selecting a menu itemThe up and down Arrow buttons let you scroll through the menu items. Menu item numbers are displayed in the two-digit display. The item number increases or decreases every time you press the up or down Arrow button. The menu items that are not in use or incompatible with the configura-tion are not displayed. The value or status associated with the active item is displayed in the four-digit display. To scroll quickly through the items, hold the up or down Arrow button down.

The following example shows how to access item 3 in the Pressures menu.

Selecting a menu itemOperation Press

buttonMenu LED Item number

2-digit displayPresstheMENUbuttonuntiltheLEDmarkedPRESSURElights.

0

0PressoneoftheArrowbuttonsuntilthetwo-digitdisplayshows3(itemnumber3).

1

2

3

4.3.3 - Modifying the value of a parameter/access to a sub-menuPress the Enter button for more than 2 seconds to enter the modification mode or to select a sub-menu. This lets you correct the value of an item or select a sub-menu with the aid of the up and down Arrow buttons (if you are authorised to overwrite the item concerned). When modification mode is activated, the LED for the main menu to which the item belongs flashes in menu block. Once the required value is obtained, press the Enter button again to validate the change or to access the sub-menu. The LED for the menu to which the item belongs then stops flashing, indicating that modifi-cation mode no longer applies.

In modification mode, the value to be modified increases or decreases in steps of 0.1 every time you press the Arrow buttons. Holding one of these buttons down increases the rate of increase or decrease.

NOTE: The access to a sub-menu may require entering a password. This is automatically requested. See section 4.3.11.2.

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4.3.4 - Expand displayPressing the Enter button causes a 23 character text expansion to be scrolled across the four-digit display. All user menus provide an expansion of the current displayed parameters. If the expansion is complete the four-digit display reverts to item value. This function can be inhibited through the User Configuration menu.

The following example shows how to modify the value of item 1 in the Setpoint menu.

Modifying the value of a parameterOperation Press

buttonMenu LED Item number

2-digit displayItem value 4-digit display

HoldontheMENUbuttonuntiltheLEDforSETPOINTlights. 0

0PressoneoftheArrowbuttonsuntilthetwo-digitdisplayshows1(itemnumber1-coolingsetpoint2).Thevalueforsetpoint2isdisplayedinthefour-digitdisplay(6.0°Cinthisexample).

1

1 6.0PresstheEnterbuttonformorethan2secondstoenablethevalueassociatedwithitem1tobemodified.TheSetpointmenuLEDflashesindicatingthatmodificationmodeisactive.

1 6.0

KeeppressingtheDownArrowbuttonuntilthevalue5.7isdisplayedinthefour-digitdisplay.TheSetpointmenuLEDkeepsflashing.

1

1

1

5.9

5.8

5.7PresstheEnterbuttonagaintovalidatethechange.Thenewsetpointis5.7°C.TheSetpointmenuLEDstopsflashing,indicatingthatmodificationmodenolongerapplies.

1 5.7

11

ALAR

MS

USER

[USEr]

SERV

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[SEr

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RUN

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[Run

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MAI

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[MAi

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PERI

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[PEriod1]

PERI

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[PEriod2]

PERI

OD3

[PEriod3]

PERI

OD4

[PEriod4]

PERI

OD5

[PEriod5]

PERI

OD6

[PEriod6]

USER

1[USEr1]

USER

2[USEr2]

SCHED

ULE1

[SCHEduLE1]

SCHED

ULE2

[SCHEduLE2]

HOLIDAYS

[HoLidAy]

HOUR

+DATE

[dAtE]

BROAD

CAST

[brodCASt]

SERVICE1

[SErviC

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MASTER/SLAVE

[MAStErSLAvE]

HSM

[HSM

]

PERI

OD1

[PEriod1]

PERI

OD2

[PEriod2]

PERI

OD3

[PEriod3]

PERI

OD4

[PEriod4]

PERI

OD5

[PEriod5]

PERI

OD6

[PEriod6]

HOLIDAYS1

[HoLidAy1]

HOLIDAYS2

[HoLidAy2]

HOLIDAYS3

[HoLidAy3]

HOLIDAYS4

[HoLidAy4]

HOLIDAYS5

[HoLidAy5]

HOLIDAYS6

[HoLidAy6]

HOLIDAYS7

[HoLidAy7]

HOLIDAYS8

[HoLidAy8]

- - -

- - - - - -

MAINMEN

US

SUB-MEN

US

SUB-SU

B-MEN

US

SUB-SU

B-SU

B-MEN

US

MENU TREE sTRUcTURE

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OD7

[PEriod7]

PERI

OD8

[PEriod8]

PERI

OD7

[PEriod7]

PERI

OD8

[PEriod8]

PERI

OD15

[PEriod15]

PERI

OD16

[PEriod16]

12

MENU

MENU TREE sTRUcTURE

Not

e:Theitemsinbracketsshowwhatisdisplayedontheuserinterface

Item

Stat

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puts

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Defaultdisplay

Evaporatorwater

enteringtemp.

Dischargepressure

circuitA

Coolingsetpoint1

Contact1:on/off

Com

pressorstatus

circuitA

SUB-MEN

U:User

Configuration(USEr)

Num

berof

activealarms/

resets**

Historicalarm

code1**

SUB-MEN

U:

Runtimes1

1Mode

Evaporatorwater

leavingtemp.

Suctionpressure

circuitA

Coolingsetpoint2

Contact2:heating/

coolingorheatreclaim

Com

pressorstatus

circuitB*

SUB-MEN

U:Service

Configuration(SErviC

E)Activealarm

code1**

Historicalarm

code2**

SUB-MEN

U:

Runtimes2

2Chilleroccupied/

unoccupiedmode*

Condenserwater

enteringtemp.

Dischargepressure

circuitB*

Heatingsetpoint1*

Contact3:dem

and

limit/setpointselection

Fanstatus,unitwithout

condenser,circuitA

SUB-MEN

U:Factory

Configuration(FAC

torY)Activealarm

code2**

Historicalarm

code3**

SUB-MEN

U:

Maintenance

3Minutesleft

Condenserwater

leavingtemp.

Suctionpressure

circuitB*

Heatingsetpoint2*

Contact4:dem

and

limitselection*

Fanstatus,unitwithout

condenser,circuitB*

-Activealarm

code3**

Historicalarm

code4**

-

4Cooling/heatingselection*

Outdoortemperature

-Heatingsetpoint3*

Contact5:setpoint

selection*

Fanstatus,drycooler

-Activealarm

code4**

Historicalarm

code5**

-

5Cooling/heatingstatus*

Saturateddischarge

temperature,circuitA

-Setpointdem

and

limitation1*

Contact6:setpoint

selection*

Evaporatorwater

pump1status*

-Activealarm

code5**

Historicalarm

code6**

-

6Heatreclaimselection*

Saturatedsuction

temp.circuitA

-Setpointdem

and

limitation2*

Safetyloopstatus

Evaporatorwater

pump2status*

--

Historicalarm

code7**

-

7Heatreclaimstatus

Saturateddischarge

temperaturecircuitB*-

Setpointdem

and

limitation3*

Evaporatorwater

pumpoperation

contactstatus*

Condenserwater

pump1status*

--

Historicalarm

code8**

-

8Unitcapacityin%

Saturatedsuction

temp.circuitB*

-Ramploading*

Condenserwater

pumpoperation

contactstatus*

Condenserwater

pump2status*

--

Historicalarm

code9**

-

9CapacitycircuitAin%*

Drycoolerleaving

watertem

perature*

-Cooling-zeroreset

threshold*

Faultcontact,

compressor,circuitA

Speedcondenser

pump1*

--

Historicalarm

code10**

-

10CapacitycircuitBin%*

System

water

temperature*

-Cooling-fullreset

threshold*

Faultcontact,

compressor,circuitB*

Speedcondenser

pump2*

--

--

11Presentdem

andlimitin%

--

Cooling-fullreset

value*

-AlarmcircuitsAandB

status

--

--

12Presentlaglim

itin%*

--

Heating-zeroreset

threshold*

-Boilerstatus*

--

--

13Setpointinlocalcontrol*

--

Heating-fullreset

threshold*

-Speed,fanAin%*

--

--

14Setpointoccu-pied/

unoccupiedmode*

--

Heating-fullreset

value*

-Speed,fanBin%*

--

--

15Activesetpoint

--

--

Solenoidvalvestatus

--

--

16Controlpoint

--

--

Userinterfacetest

--

--

17Controlledwater

temperature

--

--

--

--

-

Lege

nd*

Displayediftheconfigurationrequiresit

**Displayedifthealarmexists

-Notinuse

13

4.3.5 - Description of the Information menu

Information menu (3)Item Format Units Description1 Automatic display mode.Itcyclesthroughthefollowingdisplays:

±nn.n 1: Controlled water temperature:temperatureofthewaterthattheunittriestomaintainatthecontrolpoint.

LOFFL-OnL-ScCCnrEMMASt

2: Unit operating typeLocalOffLocalOnLocalOn-basedonunitclock.DisplayediftheCCN/clockboardisinstalled.CCNControl.DisplayediftheCCN/clockboardisinstalled.RemoteControlMasterunit

OFFrEADYdELAY

StOPPingrunningtriPoutOvErridE

3: Unit statusOff:Unitisstoppedandnotauthorisedtostart.Ready:Unitisauthorisedtostart.Delay:Unitisindelayatstart-up.Thisdelayisactiveaftertheunithasbeenswitchedon.ThedelaycanbeconfiguredintheUserConfigurationmenu.Stopping:Unitiscurrentlystopping.On:Unitisrunningorauthorisedtostart.Faultshutdown.Limit:Theoperatingconditionsdonotallowtotalunitoperation.

OCCUPIEdUNOCCUPIEd

4: Unit occupied/unoccupied statusOccupied:Unitinoccupiedmode.Unoccupied:Unitinunoccupiedmode.

COOLHEATBotH

5: Heating/cooling operating modeCooling:Unitoperatesincoolingmode.Heating:Unitoperatesinheatingmode.Both:Theunitoperatesincooling(compressors)andheating(boiler).OnlywithHSMoperation.

ALArMALErt

6: Alarm modeAlarm:Unitistotallystoppedbecauseoffailure.Alert:Unitisinfailurebutnotcompletelystopped.

MAStErSLAvE

7: Master/Slave statusMaster:Themaster/slavecontrolisactiveandtheunitisthemaster.Slave:Themaster/slavecontrolisactiveandtheunitistheslave.

1[1] nn Active mode codes.Eachactivemodeisdisplayedinturn.ThisItemismaskedwhennil.Pressingtheenterbuttonwhenamodecodeisdisplayedcausesacharactertextexpansiontobescrolledaccrossthefour-digitdisplay.Seethedescriptioninthefollowingtable.

2[2]occuunocForc

Thisitemindicatesthecurrentunit occupied/unoccupiedmode.DisplayediftheCCN/clockboardisinstalled.OccupiedUnoccupiedThevalueisdisplayedinturnwith‘Forc’whentheunitisinCCNcontrolandifthisvariableifforcedthroughCCN.

3 nn.n minutes Start-up delay.Thisitemindicatestheminutesleftbeforetheunitcanbestarted.Thisdelayatstart-upisalwaysactiveaftertheunithasbeenswitchedon.ThedelaycanbeconfiguredintheUserConfiguration1menu.

4[2]

HEAtCOOL

Heating/cooling on selection: Thisitemisaccessibleinread/write,iftheunitisinlocalcontrolmode.Itisonlydisplayed,iftheunitisinLOFF,L-OnorL-Scoperatingtype.Displayediftheunitcontrolsaboiler.HeatingmodeselectionCoolingmodeselection

5[2]HEAtCOOLbothForc

Heating/cooling mode.Thisitemindicateswhethertheunitisincoolingorheating.Displayediftheunitcontrolsaboiler.HeatingCoolingBoth:Theunitoperatesincooling(compressors)andheating(boiler).OnlywithHSMoperation.Thevalueisdisplayedinturnwith‘Forc’whentheunitisinCCNcontrolandifthisvariableifforcedthroughCCN.

6[2]rECLnO

Heat reclaim mode selected.Thisitemisaccessibleinwrite,iftheunitisinlocalcontrolmode.HeatreclaimselectionNormalmode

7[2]rECLnOForc

Heat reclaim mode.Thisitemindicates,iftheunitoperatesinheatreclaimmode.Displayediftheheatreclaimmodeisconfigured.HeatreclaimactivatedNormalThevalueisdisplayedinturnwith‘Forc’whentheunitisinCCNcontrolandifthisvariableifforcedthroughCCN.

8 nnn % Total active capacity of unit.Itisthepercentageofcompressorcapacityusedbytheunit.9 nnn % Total active capacity of circuit A.ItisthepercentageofcompressorcapacityusedbyoncircuitA..10[2] nnn % Total active capacity of circuit B.ItisthepercentageofcompressorcapacityusedbyoncircuitB.Dual-circuitunitsonly.11 nnn

ForcDemand limit active.Thisistheauthorisedoperatingcapacityoftheunit.Seesection5.7.Thevalueisdisplayedinturnwith‘Forc’whentheunitisinCCNcontrolandifthisvariableifforcedthroughCCN.

12[2] nnn % Lag chiller demand limit active.Displayedwhenthemaster/slavecontrolisselected.13[2]

SP-1SP-2SP-3AUtO

Setpoint select in local mode.Thispointisread/writeaccessible.DisplayedonlywhentheunitisLOFF,L-OnorL-Scoperatingtype.SP-1=cooling/heatingsetpoint1SP-2=cooling/heatingsetpoint2SP-3=heatingsetpoint3AUtO=activesetpointdependsonschedule2(setpointselectionschedule).Seesection5.6.1&4.3.11.6.

14[2]occuunocForc

Setpoint occupied mode.DisplayediftheCCN/clockboardisinstalled.Occupied:coolingsetpoint1isactiveUnoccupied:coolingsetpoint2isactiveThevalueshallbedisplayedinturnwith‘Forc’whentheunitisinCCNcontrolandifthisvariableifforcedthroughCCN.

1 Thisitemismaskedwhennil.2 Thisitemisdisplayedincertainunitconfigurationsonly.

14

Information menu (3) - continuedItem Format Units Description15 nnn °C Active setpoint.Thisisthecurrentcooling/heatingsetpoint:itreferstocoolingsetpoint1orcooling/heatingsetpoint2.Seesection5.6.1.16

nnnForc

°C Control point.Thisisthesetpointusedbythecontrollertoadjustthetemperatureoftheleavingorenteringwater(accordingtoconfiguration).Controlpoint=activesetpoint+reset.Seesection5.6Thevalueisdisplayedinturnwith‘Forc’whentheunitisinCCNcontrolandifthisvariableifforcedthroughCCN.

17 nnn °C Controlled water temperature.Watertemperaturethattheunittriestomaintainatthecontrolpoint.1 Thisitemismaskedwhennil.2 Thisitemisdisplayedincertainunitconfigurationsonly.

Description of OPERATING modes (item 1 of the Information menu)Mode # Mode name Description1 Delayatstart-upactive Thedelayatstart-upoperatesaftertheunithasbeenswitchedon.Ifthedelayhasnotexpired,themodeis

active.ThedelayisconfiguredintheUserConfiguration1menu.2 2ndcooling/heatingsetpointactive Thesecondcooling/heatingsetpointisactive.Seesection5.6.13 3rdheatingsetpointactive Thethirdheatingsetpointisactive.Seesection5.6.14 Setpointresetactive Inthismode,theunitusestheresetfunctiontoadjusttheleavingwatertemperaturesetpoint.Seesection5.6.5 Demandlimitactive Inthismode,thedemandatwhichtheunitisauthorisedtooperateislimited.Seesection5.7.6 Ramploadingactive Ramploadingisactive.Inthismode,therateofwatertemperaturedroporrise(heatingmode)in°C/minis

limitedtoapresetvalueinordertopreventcompressoroverloading.Rampfunctionmustbeconfigured(seeUserConfiguration1menu).Rampvaluescanbemodified(seeSetpointmenu).

7 Evaporatorpumpreversalineffect Theunitisfittedwithtwoevaporatorwaterpumpsandreversalbetweenpumpsisineffect.Seesection5.3.8 Condenserpumpreversalineffect Theunitisfittedwithtwocondenserwaterpumpsandreversalbetweenpumpsisineffect.Seesection5.3.9 Evaporatorpumpperiodicstart Theunitisstoppedandthepumpisstartedeachdayat14.00p.m.fortwoseconds.Thisfunctionneedstobe

configuredintheUserConfiguration1menu.Seesection5.3&4.3.11.3.10 Condenserpumpperiodicstart Theunitisstoppedandthepumpisstartedeachdayat14.00p.m.fortwoseconds.Thisfunctionneedstobe

configuredintheUserConfiguration1menu.Seesection5.3&4.3.11.311 Nightcondensingmode Thenightmodeisactive.Fanrunsatlowspeed(ifpermittedbyoperatingconditions)andunitcapacitycanbe

limited.Seesection5.8&4.3.11.3.12,13 Lowsuctiontemperatureprotection 12=circuitA&13=circuitB.Protectionforevaporatorlowsuctiontemperaturecircuitisactive.Inthismode,

circuitcapacityisnotauthorisedtoriseandthecircuitcanbeunloaded.14,15 Highpressureprotection 14=circuitA&15=circuitB.ThecircuitisinhighpressureprotectionmodebecausetheHPprotection

thresholdhasbeenexceeded.Circuithasbeenunloadedandthecircuitcapacityisnotauthorisedtorise.16,17 Hotgasprotection 16=circuitA&17=circuitB.Hotgasdischargeprotectionisactive.Inthismode,thecircuitcapacitycannot

increase,andthecircuitmaybeunloaded.18 Lowwatertemperatureprotection Theunitunloads,whenitisinheatingmodeandtheevaporatorwatertemperaturegoesbeyondtheauthorised

thresholds.19 Boileractive Theunitcontrolsaboilerandthisisoperating.Seesection5.13.20 UnitinSMcontrol UnitisincontrolofaSystemManager(FSM,CSMIIIorHSM).21 Master/slavelinkactive Unitisconnectedtoasecondaryunitbyamasterslavelinkandthemaster/slavemodesareactive.

15

4.3.8 - Description of the setpoints menu

Setpoints menu [2]Item Format Units Range Comments0 ±nn.n °C Seetablebelow ThisitemletsyoudisplayandmodifyCooling setpoint 1*1 ±nn.n °C Seetablebelow ThisitemletsyoudisplayandmodifyCooling setpoint 2*2 nnn °C Seetablebelow ThisitemletsyoudisplayandmodifyHeating setpoint 1*,onlydisplayedforheatpumps.3[1] nnn °C Seetablebelow ThisitemletsyoudisplayandmodifyHeating setpoint 2*,onlydisplayedforheatpumps.4[1] nn.n °C Seetablebelow ThisitemletsyoudisplayandmodifyHeating setpoint 3*,onlydisplayedforheatpumps.5 nnn % 0to100 Demand limit 1 setpoint.Limitationbyvolt-freecontact.Thisitemisusedtodefinethemaximumcapacitythatthe

unitisauthorisedtouse,ifthedemandlimitcontact(s)activatelimit1.Contactcontroldependsontheunittypeandconfiguration.Seesections3.6.4and3.6.5.

6[1] nnn % 0to100 Demand limit 2 setpoint.Limitationbyvolt-freecontact.Thisitemisusedtodefinethemaximumcapacitythattheunitisauthorisedtouse,ifthedemandlimitcontact(s)activatelimit2.Contactcontroldependsontheunittypeandconfiguration.Displayedandusedonlyfordual-circuitunits.Seesection3.6.5forthecontactcontroldescription.

7[1] nnn % 0to100 Demand limit 3 setpoint.Limitationbyvolt-freecontact.Thisitemisusedtodefinethemaximumcapacitythattheunitisauthorisedtouse,ifthedemandlimitcontact(s)activatelimit3.Displayedandusedonlyfordual-circuitunits.Seesection3.6.5forthecontactcontroldescription.

8 ±nn.n °C/min 0.1to1.1 Cooling or heating ramp loading rate.ThisparameterisonlyaccessibleiftherampfunctionisvalidatedintheUserConfiguration1menu.Thisitemreferstotheratesoftemperaturedropin°Cintheevaporator.Whencapacityloadingiseffectivelylimitedbytheramp,mode7isactive.

9[1] ±nn.n °C Seetablebelow Zero reset threshold, cooling mode**10[1] ±nn.n °C Seetablebelow Full reset threshold, cooling mode**11[1] ±nn.n °C Seetablebelow Full reset value, cooling mode**12[1] ±nn.n °C Seetablebelow Zero reset threshold, heating mode**13[1] ±nn.n °C Seetablebelow Full reset threshold, heating mode**14[1] ±nn.n °C -16to16 Full reset value, heating mode**1 Thisitemisdisplayedincertainunitconfigurationsonly.2 Allpointscontainedinthistablecanbemodified.* Thosesetpointscanbeusedforenteringorleavingwatertemperaturecontrol.Bydefaulttheunitcontrolstheevaporatorenteringfluidtemperature. LeavingfluidtemperaturecontrolrequiresaparametermodificationintheServiceConfigurationmenu.** TheseparametersareonlyaccessiblewhenresetbasedonOATordeltaThasbeenselectedintheUserConfiguration1menu.Seesection4.3.11.3&5.6.2.

4.3.6 - Description of the Temperatures menu

Temperatures menu [2]Item Format Units Comments0 ±nn.n °C Evaporator entering water temperature1 ±nn.n °C Evaporator leaving water temperature2[1] ±nn.n °C Condenser entering water temperature3[1] ±nn.n °C Condenser leaving water temperature4 ±nn.n °C Outdoor temperature5 ±nn.n °C Saturated discharge temperature, circuit A6 ±nn.n °C Saturated suction temperature, circuit A7[1] ±nn.n °C Saturated discharge temperature, circuit B8[1] ±nn.n °C Saturated suction temperature, circuit B9[1] ±nn.n °C Leaving water temperature, drycooler10[1] ±nn.n °C Chilled water system temperature.Usedfor

master/slavecontrol.1 Thisitemisdisplayedincertainunitconfigurationsonly2 Accesstothismenuisread-only.

4.3.7 - Description of the Pressures menu

Pressures menu [2] Item Format Units Comments0 nnnn kPa Discharge pressure, circuit A.Relativepressure.1 nnn kPa Suction pressure, circuit A. Relativepressure.2[1] nnnn kPa Discharge pressure, circuit B. Relativepressure.3[1] nnn kPa Suction pressure, circuit B.Relativepressure.1 Thisitemisdisplayedincertainunitconfigurationsonly.2 Accesstothismenuisread-only

16

4.3.9 - Description of the Inputs menu

Inputs menu [2]Item Format Units Comments0 oPEn/CLoS Remote contact 1 status.

Thiscontactisusedtostartandstoptheunit.Thiscontactisonlyvalid,iftheunitisintheremoteoperatingcontrol(rEM)mode.Seesection3.6forthedescriptionoftheconnectionsofthiscontact.

1[1] oPEn/CLoS Remote contact 2 status.Thiscontactisusedtoselecttheheatingorcoolingmode.forheatpumpsorforboilerstart-up.Itisalsousedtochangeovertoheatreclaimmodeforcoolingonlyunits.Thiscontactisonlyvalid,iftheunitisintheremoteoperatingcontrol(rEM)mode.Seesection3.6forthedescriptionoftheconnectionsofthiscontact.

2 oPEn/CLoS Remote contact 3 status.Theoperationofthiscontactdependsontheunittype.Single-circuit unit:thiscontactcanbeusedeithertolimitunitdemandortoselectasetpoint,asdescribedinUserConfiguration.Ifthiscontactisusedforselectingasetpointitisonlyactiveiftheunitisintheremoteoperatingcontrolmode.Ifthecontactisusedtolimitthedemandoftheunit,itisactiveinalloperatingtypes.Opencontact:unitcapacityisnotlimitedorunitcontrolisbasedonsetpoint1.Closedcontact:unitcapacityislimitedatlimitsetpoint1orunitcontrolisbasedonsetpoint2.Seesection4.3.11.3fortheconfigurationofcontact3-section5.6.1forthedescriptionofthesetpointselection-section5.7forthedescriptionofthedemandlimitfunctionand3.6forthedescriptionoftheconnectionofcontact3forsingle-circuitunits.Dual-circuit units:thiscontactismultiplexedwithcontact4topermittheselectionofademandlimitpoint.Thiscontactisactiveinalloperatingtypes.Seesection3.6.5forthedescriptionofthiscontactandsection5.7forthedescriptionofthedemandlimitfunction.

3 oPEn/CLoS Remote contact 4 status.Thiscontactisonlyusedfordual-circuitunits:thiscontactismultiplexedwithcontact3topermitselectionofademandlimitvalue.Thiscontactisactiveinalloperatingtypes.Seesection3.6.5forthedescriptionofthiscontactandsection5.7forthedescriptionofthedemandlimitfunction.

4[1] oPEn/CLoS Remote contact 5 status.Thiscontactisonlyusedfordual-circuitunits:thiscontactismultiplexedwithcontact6topermitselectionofasetpoint.Thiscontactisonlyactiveintheremoteoperatingcontrolmode.Seesection3.6.6forthedescriptionofthiscontactandsection5.6.1forthedescriptionofthesetpointselectionfunction.

5[1] oPEn/CLoS Remote contact 6 status.Thiscontactisonlyusedfordual-circuitunits:thiscontactismultiplexedwithcontact5topermitselectionofasetpoint.Thiscontactisonlyactiveintheremoteoperatingcontrolmode.Seesection3.6.6forthedescriptionofthiscontactandsection5.6.1forthedescriptionofthesetpointselectionfunction.

6[1] oPEn/CLoS Interlock status.Whenthiscontactopenstheunitstopsorispreventedfromstartingandanalarmiscreated.Thiscontactisusedtocontrolthewaterflow.Inaddition,acustomersafetydevicecanbeconnectedinserieswiththiscontact(seesection3.6).

7[1] oPEn/CLoS Evaporator water pump runcontactstatus.Whenthiscontactopenswhileanevaporatorpumphasreceivedacommandtobeonthenapumpfailurealarmistripped.

8[1] oPEn/CLoS Condenser water pump runcontactstatus.Whenthiscontactopenswhileacondenserpumphasreceivedacommandtobeonthenapumpfailurealarmistripped.

9 b1b2b3 Compressor faultcontacts,circuitA b1=faultA1 b2=faultA210[1] b1b2b3 Compressor faultcontacts,circuitB b1=faultB1 b2=faultB21 Thisitemisdisplayedincertainunitconfigurationsonly2 Accesstothismenuisread-only.

Leaving water temperature controlSetpoint - R-407C °CMinimumcoolingvalue Water 5.0 Mediumbrine 0.0 Brine -10.0Maximumcoolingvalue 20.0Feedbacksetpoint,cooling 6.0Minimumheatingvalue 20.6Maximumheatingvalue 51.7Feedbacksetpointheating 48.0Entering water temperature controlSetpoint - R-407C °CMinimumcoolingvalue Water 11.1 Mediumbrine 6.1 Brine -3.9Maximumcoolingvalue 26.1Feedbacksetpoint,cooling 12.0Minimumheatingvalue 14.4Maximumheatingvalue 45.6Feedbacksetpointheating 42.0

Reset thresholds in cooling or heating modeReset threshold Zero FullReset based on outdoor air temperature -10to51°C -10to51°CReset based on Delta T 0to11.1°C 0to11.1°C

17

4.3.10 - Description of the Outputs/Tests menu

4.3.10.1 - GeneralThis menu displays the status of the controller outputs. More-over, when the machine is fully stopped (LOFF) the outputs can be activated for manual tests (the access to the tests is password controlled).

4.3.10.2 - Menu descriptionOutputs status & tests menu [2] [3]Item Format Units Description0 b1b2

tESt

FAILGood

Circuit A compressors, commandstatusb1=compressorA1b2=compressorA2

Intest mode,theArrowbuttonsdisplay01and10insuccession,soastoforcethestatusofthecompressoroutputsinturn.Duringthetestphase,powertothecompressorisswitchedonfor10secondsonly.Itisthennotpossibletorestartthecompressorforafurther30seconds.Whenthetestiscompletedthefollowingisdisplayed:Fail:displayedifthetesthasfailedbecausethecompressorwasnotstartedorruninreverserotation.Good:displayediftestwassuccessful

1[1] b1b2tEStFAILGood

Circuit B compressor, dual-circuit units onlyb1=compressorB1b2=compressorB2Intest mode... asabove

2 ntESt

Number of fans in operation, circuit A, remote condenser

3[1] ntESt

Number of fans in operation, circuit B, remote condenser

4[1] n Number of fans in operation, drycooler5[1]

OnOFFtEStFAILGoodForc

Evaporator water pump #1 control status. Not displayed if the unit does not control a pump.On:pumpisrunningStop:pumpisstoppedForc:thisitemisdisplayedonlywhentheunitisstoppedlocally(LOFF).selectingthisitemauthorisesturningonthepumpwithnodelayandforanunlimitedlengthoftime.Thepumpwillremainonuntiloneoftheuserinterfacebuttonsispressed:itisthenimmediatelystopped.During the test phase, power to the pump is switched on for 10 seconds only. When the test is completed the following is displayed:Fail:displayedifthetesthasfailedbecausethepumpwasnotstartedGood:displayedifthetestwassuccessfulandthewaterflowswitchpresencecontactisclosed.

6[1] OnAsabove

Evaporator water pump #2controlstatus.Notdisplayediftheunitdoesnotcontrolasecondarypump.Asabove

7[1] OnAsabove

Condenser fixed-speed water pump #1controlstatus.Asabove

8[1] OnAsabove

Condenser fixed-speed water pump #2controlstatus.Asabove

9[1] nnntEStFAILGoodForc

Condenser variable-speed water pump #1 or condenser open-loop water pump controlstatus.nnn:Pumpspeedin%Asabove

10[1] nnntEStFAILGoodForc

Condenser variable-speed water pump #2 or condenser open-loop water pumpor three-way valve controlstatus.nnn:Pumpspeedin%orvalvepositionin%Asabove

11 b1b2tESt

Alarm output command statusb1=alarmcircuitAb2=alarmcircuitBIntest mode,theArrowbuttonsdisplay01and10insuccession,soastoforceeachalarmoutputstatusinturn.

12[1] OnOFFtESt

Boilercommandstatus.Displayediftheunitcontrolsaboiler.Seesection5.13.

13[1] nnntESt %

Variable fan speed, drycooler or circuit A.Displayediftheunitcontrolsavariable-speedfaninadrycoolerorremotecondenser.

14[1] nnntESt %

Variable fan speed, circuit B.Dual-circuitsonlyandiftheunitcontrolsavariable-speedfan.

15[1] b1b2tESt

Pumpdown solenoid valve status.Intestmode,thearrowkeyssuccessivelydisplay01and10,inordertoauthorisethetestforeachvalveinturn.b1=valvecircuitAb2=valvecircuitBThisitemisonlydisplayedforunitswithremotecondenser.

16[1] YESnotESt %

Used for local interface testonly.LightsorflashesallLEDsandblocks,soastocheckthattheyareworkingproperly.

1 Thisitemisdisplayedincertainunitconfigurationsonly.2 TestingauthorisedonlyiftheunitisinLocalOffandallcompressorsareoff.3 Passwordneededonlyfortesting.“Test” Displayedinturnwiththeitemvalueduringtests.

18

Sub-menu period configuration*Item Period 1 to 8

[PEriod X MEnu]*0 Returntopreviousmenu1 Startofoccupiedperiod2 Endofoccupiedperiod3 SelectionMonday4 SelectionTuesday5 SelectionWednesday6 SelectionThursday7 SelectionFriday8 SelectionSaturday9 SelectionSunday10 Selectionholidays

Sub-menu holiday configuration*Item Holidays 1 to 16

[HoLidAy X MEnu]*0 Returntopreviousmenu1 Startmonthholidays3 Startdayholidays4 Numberofdays,holidays* onlydisplayedifconfigurationrequires.

NOTE: The items in brackets show what is displayed on the user interface.

USER[USEr]

CONFIGURATION

PERIOD1

PERIOD2

PERIOD3

PERIOD4

PERIOD5

PERIOD6

PERIOD7

PERIOD8

PERIOD1

PERIOD2

PERIOD3

PERIOD4

PERIOD5

PERIOD6

PERIOD7

PERIOD8

HOLIDAY1

HOLIDAY2

HOLIDAY3

HOLIDAY4

HOLIDAY5

HOLIDAY6

HOLIDAY7

HOLIDAY8

HOLIDAY16

HOLIDAY15

...

...

...

USER2[USEr2]

SCHEDULE1[SCHEduLE1]*

SCHEDULE2[SCHEduLE2]*

HOLIDAYS[HOLIDAYS]*

HOUR+DATE[dAtE]*

BROADCAST[broAdCASE]*

USER1[USEr1]

4.3.10.3 - TestsThis function allows the user to test the outputs individually, if the machine is completely shut down (LOFF). To carry out a manual test use the arrow keys to access the output to be tested and press the Enter key (longer than 2 seconds) to activate the modification mode. The password is automatically requested, if it has not previously been verified. The Outputs/Test LED on the user interface begins to flash. Enter the desired test value and again press Enter to start the test. ‘TESt’ is displayed on the 4-digit display alternately with the value tested.

The Outputs/Test LED stops flashing. Press the Enter key or an arrow key to stop the test.

4.3.11 - Description of the configuration menu

4.3.11.1 - GeneralThis menu can be used to display and modify all configura-tions: Factory, Service and User. Only the User Configura-tion can be modified by the end-user. The Factory, Service and master/slave configurations are not described in this document. A configuration can only be modified if the unit is fully stopped (LOFF).

The menus User 1 [USEr 1] and User 2 [USEr 2] are password-protected. The other menus are directly accessible, except if item 6 of the User 1 menu (password for all configurations) has been validated.

4.3.11.2 - PasswordA password must be entered in order to access the test function or to modify a configuration. It is automatically requested, if necessary: ‘EntEr PASS’ is displayed on the 4-digit display and the configuration menu LED flashes, indicating that the modification mode is active. Press the arrow keys until the value ‘11’ is displayed on the 4-digit display. Press Enter to validate this. The configuration menu LED stops flashing. If the password is correct, ‘Good’ is displayed. If the password is incorrect, ‘PASS incorrEct’ is displayed. The User password has a default value of 11.

This value can be modified through the Service configuration. The password can be entered if the unit is fully stopped, otherwise ‘ACCES dEniEd’ (access denied) will be displayed on the 4-digit display. The controller automatically deacti-vates the password after 5 minutes without activity (i.e. no buttons pressed) or after powering up.

19

Sub-menu user configurationItem User 1

[USER1]User 2[USER1]

Date[dAtE]*

Schedule 1[ScHEduLE 1 MEnu]*

Schedule 2[ScHEduLE 2 MEnu]*

Holidays[HOLidAy Menu]*

Broadcast[BrodCASt]*

0 Returntopreviousmenu

Returntopreviousmenu*

Returntopreviousmenu



Returntopreviousmenu Returntopreviousmenu

1 Circuitsequenceselection

Nightmode-starthour*

Hour* SUB-MENU:Period1[PErIod1]

SUB-MENU:Period1[PErIod1]

SUB-MENU:Holidays1[HOLidAy1]

Broadcastacknowledgerselection

2 Rampselection* Nightmode-endhour*

Dayoftheweek* SUB-MENU:Period2[PErIod2]



Broadcastactivation

3 Start-updelay* Nightmode-demandlimitin%

Dayandmonth* SUB-MENU:Period3[PErIod3]



Outdoortemperaturebroadcastbus

4 Controlcontact3selection*

Numberclock1* Year* SUB-MENU:Period4[PErIod4]



Outdoortemperaturebroadcastelement

5 Setpointresetselection,coolingmode

Numberclock2* - SUB-MENU:Period5[PErIod5]



Startmonthdaylightsavingtime

6 Setpointresetselection,heatingmode*

CCNaddress* - SUB-MENU:Period6[PErIod6]



Startdaydaylightsavingtime

7 Boilerselection CCNbus* - SUB-MENU:Period7[PErIod7]



Starthourdaylightsavingtime

8 Extendeddisplayselection

- - SUB-MENU:Period8[PErIod8]



Minutestoadd

9 Passwordforalluserconfigurations

- - - - SUB-MENU:Holidays9[HOLidAy9]

Endmonthdaylightsavingtime

10 Softwareversionnumber

- - - - SUB-MENU:Holidays10[HOLidAy10]

Enddaydaylightsavingtime

11 - - - - - SUB-MENU:Holidays11[HOLidAy11]

Endhourdaylightsavingtime


Minutestosubtract


-


-

15 - - - - SUB-MENU:Holidays14[HOLidAy14]

-


-

17 - - - - - - -* onlydisplayedifconfigurationrequires.


20

4.3.11.3 - Description of the User 1 configuration sub-menu

User 1 configuration sub-menu [2]Item Format Units Default Comments0 USErMEnu - - Whenselectedthisitemauthorisesreturntothepreviousmenu.1[1] 0/1/2 - 0 Circuit sequence selection (two-circuit units).

0=Balancedcircuitloading1=CircuitAfirst2=CircuitBfirst

2[1] YES/no - no Ramp loading select.Forunitswithmorethanonecompressoronly.Yes=rampenabledNo=rampdisabledThisconfigurationenablestheramptobeactivatedforheatingorcooling(dependingonconfiguration):themaximumrate(in°C/min)oftemperaturedroporrisefortheheatexchangerwater(leavingorentering,uponconfiguration).RampsettingvaluecanbeconfiguredintheSetpointmenu.

3 1to15 min 1 Delay at start-up.Thisvalueisreinitialisedafterpower-uporwhenbothcircuitsarehaltedbylocal,remoteorCCNcommand.Nocompressorwillbestartedupuntilthispausehasexpired.However,theevaporatorpumpcommandwillbeactivatedimmediately.Thesafetylockoutloopwillnotbecheckeduntilthepausehasexpired.

4[1] 0/1 - 0 Contact 3 select (for single-circuit units)0=inputisusedfordemandlimitcommandcontrol1=inputisusedfordualsetpointcommandcontrolDetermineswhethercontact3isusedforremotedemandlimitordualsetpointcontrol.Forsingle-circuitunitsonly.

5 0/1/2 - 0 Cooling setpoint reset select.Seesection5.6.2.0=resetnotselected1=resetbasedonoutdoortemperature2=resetbasedonreturnwatertemperature

6[1] 0/1/2 - 0 Heating setpoint reset select (heat pumps only).Seesection5.6.20=resetnotselected1=resetbasedonoutdoortemperature2=resetbasedonreturnwatertemperature

7 «YES/no» - no Boiler control selectYes=boilercontrolledbytheunitNo=boilernotcontrolled

8 «YES/no» - yes Extended menu selectYes=menudescriptionavailableNo=menudescriptionnotavailableThisitemauthorisesactivatingorinhibitingthemenuitemexpandeddisplay.

9 «YES/no» - no Password for all User ConfigurationsYes=passwordrequiredforallUserConfigurations(Date,TimeSchedule,Broadcast)No=passwordrequireforUsermenuonlyWhenthisitemisvalidated,theUserPasswordwillberequiredforallconfigurationsaccessiblebytheUser.

10 nn.n - - Software version numberThisitemshowsthenumberofthesoftwareversionusedbythiscontroller.Accessisreadonly.

1 Thisitemshallbemaskedwhennotused.2 Accesstomenuisread/write.

4.3.11.4 - Description of the User 2 configuration sub-menuThis menu is only accessible if the unit is equipped with an optional CCN/clock board

User 1 configuration sub-menuItem Format Units Default Comments0 USEr2Menu Whenselectedthisitemauthorisesreturntothepreviousmenu.1[1] YES/no - no Periodic pump quick-start of the water pump(s)

Yes=thepumpisstartedperiodicallywhentheunitismanuallystopped.No=periodicpumpstartisdisabledWhentheunitismanuallystopped(e.g.duringthewinterseason)thepumpisstartedeachdayat14.00hoursfor2seconds.Iftwopumpsareavailable,pump#1isstartedonodddaysandpump#2onevendays.

2[1] n1n2n3n400:00to23:59

- 00:00 Night control mode - start time*Authorisesenteringthetimeofdayatwhichthenightcontrolmodestarts.Duringthisperiodthefanrunsatlowspeed(toreducefannoise)ifpermittedbyoperatingconditions,andunitcapacityislimitedtothemaximumnightvalues.

3[1] n1n2n3n400:00to23:59

- 00:00 Night control mode - end time*Authorisesenteringthetimeofdayatwhichthenightcontrolmodeends.

4[1] 0to100 % - Night mode demand limit value.Authorisesconfigurationofthemaximumcapacityauthorisedduringthenightmode.

5[1] 0or65to99 - 0 Schedule 1 clock number (for unit on/off schedule, see section 4.3.11.6).0=scheduleinlocaloperatingmode65to99=scheduleinCCNoperatingmode

6[1] 0or65to99 - 0 Schedule 2 clock number (schedule for setpoint selection, see section 4.3.11.6).0=scheduleinlocaloperatingmode65to99=scheduleinCCNoperatingmode

7[1] 1to239 - 1 CCN element address.Notwonetworkelementscanhavethesameelementnumberandbusnumberatthesametime.

8[1] 0to239 - 0 CCN bus number.Notwonetworkelementscanhavethesameelementnumberandbusnumberatthesametime.

* n1n2:hours(00to23).ThefirsttimetheEnterbuttoniscontinuouslypressed,thefirsttwocharactersinthe4-digitdisplayflashsothathourscanbeadjusted. n3n4:minutes(00to59).ContinuouspressingoftheEnterkeyagaincausesthelasttwocharacterstoflashsothatminutescanbeadjusted.

21

4.3.11.5 - Description of Date and Time configuration sub-menuThis menu is only accessible, if the unit is equipped with an optional CCN/clock board.

Date & time configuration sub-menuItem Format Comments0 dAtEMEnu Whenselectedthisitemauthorisesreturntothe

previousmenu.1 n1n2n3n4

00:00to23:59Current time setting.n1n2:hours(00to23).ThefirsttimetheEnterbuttoniscontinuouslypressed,thefirsttwocharactersinthe4-digitdisplayflashsothathourscanbeadjusted.n3n4:minutes(00to59).ContinuouspressingoftheEnterkeyagaincausesthelasttwocharacterstoflashandminutescanbeadjusted.

2«Mon»«tUe»«uEd»«tHu»«FrI»«SAt»«Sun»

Current day of week setting.MondayTuesdayWednesdayThursdayFridaySaturdaySunday

3 n1n2n3n401:01to31:12

Current day and month setting.n1n2:day(01to31).ThefirsttimetheEnterbuttoniscontinuouslypressed,thefirsttwocharactersinthe4-digitdisplayflashsothatdaycanbeadjusted.n3n4:month(01to12).ContinuouspressingoftheEnterkeyagaincausesthelasttwocharacterstoflashsothatmonthcanbeadjusted.

4 nnnn Current year setting.

4.3.11.6 - Description of the Time schedules sub-menusThe control provides two timer programs: schedule 1 and schedule 2 that can be activated if the unit is equipped with an optional CCN/clock board (if the CCN/clock board is not installed, the two schedules are permanently in occupied mode).

The first timer program (schedule #1) provides a means to automatically switch the unit from an occupied mode to an unoccupied mode: the unit is started during occupied periods.

The second timer program (schedule #2) provides a means to automatically switch the active setpoint from an occupied setpoint to an unoccupied setpoint: cooling setpoint 1 is used during occupied periods, cooling or heating setpoint 2 during unoccupied periods. Heating setpoint 3 is activated during holiday periods. For additional information on setpoint activation see section 5.6.1.

Each schedule consists of eight time periods set by the operator. These time periods can be flagged to be in effect or not in effect on each day of the week plus a holiday period (see section 4.3.11.7 on public holidays). The day begins at 00.00 hours and ends at 24.00 hours.

Program is in unoccupied mode unless a schedule time period is in effect. If two periods overlap and are both active on the same day, the occupied mode takes priority over the unoccupied period.

Each of the eight periods can be displayed and changed with the aid of a sub-sub-menu. The table below shows how to access the period configuration. Method is the same for the time schedule #1 or the time schedule #2.

Period X configuration sub-menus (x = 1 to 8)Item # Format Comments0 PeriodXMenu Indicatestheperiod(X)youaregoingtoconfigure.

Whenselectedthisitemauthorisesareturntothemainmenu.

1 n1n2n3n400:00to24:00

Occupied period - Start time*.Authorisesenteringthetimeofdayatwhichtheoccupiedperiodstarts.

2 n1n2n3n400:00to24:00

Occupied period - End time*.Authorisesenteringthetimeofdayatwhichtheoccupiedperiodends.

3 Mo-0orMo-1 1=theperiodisineffectonMonday.0=periodnotineffectonMonday

4 tu-0ortu-1 1=theperiodisineffectonTuesday.0=periodnotineffectonTuesday.

5 UE-0orUE-1 1=theperiodisineffectonWednesday.0=periodnotineffectonWednesday.

6 tH-0ortH-1 1=theperiodisineffecton Thursday.0=periodnotineffectonThursday.

7 Fr-0orFr-1 1=theperiodisineffectonFriday.0=periodnotineffectonFriday.

8 SA-0orSA-1 1=theperiodisineffectonSaturday.0=periodnotineffectonSaturday.

9 Su-0orSu-1 1=theperiodisineffectonSunday.0=periodnotineffectonSunday.

10 Ho-0orHo-1 1=theperiodisineffectonpublicholidays.0=periodnotineffectonpublicholidays.

* n1n2:hours(00to24).ThefirsttimetheEnterbuttoniscontinuouslypressed,thefirsttwocharactersinthe4-digitdisplayflashsothathourscanbeadjusted.

n3n4:minutes(00to59).ContinuouspressingoftheEnterkeyagaincausesthelasttwocharacterstoflashsothatminutescanbeadjusted.

Typical timer program:

24

2322

21P6P320

P319P318

P3P2P217P4P4P3P2P216

P4P4P3P2P215

P4P4P3P2P214P4P4P3P2P213

P4P4P3P2P212P5P4P4P3P2P211

P5P4P4P3P2P210P5P4P4P3P2P29

P5P4P4P3P2P28P5P4P4P3P2P27

65

43

P12

P11P10

HOLSUNSATFRITHUWESTUEMONTime

Starts at Ends at Active onP1:period1, 0h00, 3h00, MondayP2:period2, 7h00, 18h00, MondayandTuesdayP3:period3, 7h00, 21h00, WednesdayP4:period4, 7h00, 17h00, ThursdayandFridayP5:period5, 7h00, 12h00, SaturdayP6:period6, 20h00, 21h00, PublicholidaysP7:period7, NotusedinthisexampleP8:period8, Notusedinthisexample

OccupiedUnoccupied

MON: MondayTUE: TuesdayWED: WednesdayTHU: ThursdayFRI: FridaySAT: SaturdaySUN: SundayHOL: Publicholidays

22

4.3.11.7 - Description of the Holidays sub-menusThis function is used to define 16 public holiday periods. Each period is defined with the aid of three parameters: the month, starting day and duration of the public holiday period. During these public holidays the controller will be in occu-pied or unoccupied mode, depending on the programmed periods validated for public holidays (see section 4.3.11.6).

Each of these public holiday periods can be displayed and changed with the aid of a sub-menu. These menus are only accessible, if the unit is equipped with an optional CCN/clock board.

ATTENTION: The broadcast function must be activated to utilise the holiday schedule, even if the unit is running in stand-alone mode (not connected to CCN). See section 4.3.11.8.

Holiday period X configuration sub-menus (X = 1 to 16)Item # Format Comments0 HoLidAyXSub-menu Whenselectedthisitemauthorisesareturnto

theconfigurationmenu.1 0to12 Start month of public holiday period

0=periodnotinuse1=January,2=February,etc.

2 0to31 Start day of public holiday period.0periodnotinuse.

3 0to99days Duration of the public holiday period in days.Typical programming for public holidays:Apublicholidayperiodlasting1dayon20thMay,forinstance,isconfiguredasfollows:startmonth=5,startday=20,duration=1Apublicholidayperiodlasting2dayon25thMay,forinstance,isconfiguredasfollows:startmonth=5,startday=25,duration=2

Broadcast configuration sub-menuItem # Format Comments0 broAdCAStMEnu Whenselectedthisitemauthorisesareturntothemainmenu.1 YES/no Determineswhetherornottheunitisabroadcast acknowledgerwhentheunitisconnectedonaCCNnetwork.Theremustbeonlyone

broadcast acknowledgerinaCCN.

Warning:iftheunitoperatesinstandalonemode(notCCNconnected)thischoicemustbesettoYesiftheholidayfunctionisused(seesection4.3.11.6)orifyouwanttoconfigurethedaylightsavingtimefunction.

2 YES/no Thisitemauthorisesenabling or disabling the Broadcast function.WhenitissettoYES,thecontrolwillmakeaperiodicbroadcastontheCCN.WhenitissettoNO,thecontrolisnotthebroadcasterandthereisnoneedtoconfiguretheotherchoiceinthistable.Theremustbeonlyone broadcaster inaCCNandthisitemshouldnotbeconfiguredifanyothersystemelementisactingasbroadcaster.

Warning:iftheunitoperatesinstandalone(notCCNconnected)thischoicemustbesettoYesiftheholidayfunctionisused(seesection4.3.11.6)orifyouwanttoconfigurethedaylightsavingtimefunction.

3 nnn0to239

OAT Broadcaster bus number:itisthebusnumberofthesystemthathastheoutsideairtemperaturesensorconnectedtoit.UsedforCCNnetworkfunctiononly.

4 nnn0to239

OAT Broadcaster element number:itistheelementnumberofthesystemelementthathastheoutsideairtemperaturesensorconnectedtoit.UsedforCCNnetworkfunctiononly.

5 nn1to12

Daylight saving start month.Inthismodeyouenterthemonthinwhichthebroadcasterwilladjustitstimeforthestartofdaylightsavingtime.

6 nn1to31

Daylight saving start day.Inthismodeyouenterthedayonwhichthebroadcasterwilladjustitstimeforthestartofdaylightsavingtime.

7 n1n2n3n400:00to24:00

Authorises entering the hours and minutes for saving start.Inthismodeyouenterthetimeofdaywhenthebroadcasterwilladjustitstimeforthestartofdaylightsavingtime.n1n2:hours(00to24).ThefirsttimetheEnterbuttoniscontinuouslypressed,thefirsttwocharactersinthe4-digitdisplayflashsothathourscanbeadjusted.n3n4:minutes(00to59).ContinuouspressingoftheEnterkeyagaincausesthelasttwocharacterstoflashsothatminutescanbeadjusted.

8 nnnn1to1440minutes

Daylight saving start minutes to add:numberofminutesbywhichthebroadcasterwilladjustitstimeforthestartofdaylightsavingtime.

9 nn1to12

Daylight saving stop month.Inthismodeyouenterthemonthinwhichthebroadcasterwilladjustitstimefortheendofdaylightsavingtime.

10 nn1to31

Daylight saving stop day.Inthismodeyouenterthedayonwhichthebroadcasterwilladjustitstimefortheendofdaylightsavingtime.

11 n1n2n3n400:00to24:00

Authorises entering the hours and minutes for saving stop.Inthismodeyouenterthetimeofdaywhenthebroadcasterwilladjustitstimefortheendofdaylightsavingtime.n1n2:hours(00to24).ThefirsttimetheEnterbuttoniscontinuouslypressed,thefirsttwocharactersinthe4-digitdisplayflashsothathourscanbeadjusted.n3n4:minutes(00to59).ContinuouspressingoftheEnterkeyagaincausesthelasttwocharacterstoflashsothatminutescanbeadjusted.

12 nnnn1to1440minutes

Daylight saving start minutes to subtract:numberofminutesbywhichthebroadcasterwilladjustitstimefortheendofdaylightsavingtime.

4.3.11.8 - Description of the broadcast sub-menuThe controller provides a broadcast configuration menu which you can use to configure the unit to be the CCN’s broadcaster, responsible for transmitting the time, outdoor temperature, and holiday flags to all system elements. This menu also authorises setting the date of the daylight saving time. There should be only one broadcaster in a CCN, so this table should not be configured if any other system element is acting as broadcaster. These menus are only accessible, if the unit is equipped with an optional CCN/clock board.

ATTENTION: If the unit operates in standalone mode (not CCN connected) this menu can also must be used if the holiday function is used or to correct for daylight saving time.

23

4.3.12 - Description of the Alarms menuThis menu is used to display and reset up to 5 active alarms. It also permits alarm reset. If no alarm is active this menu is not accessible. See section 6 for a complete description of the alarm codes and alarm reset.

Alarms menuItem # Format Comments0[1] XALArM

rESEtALArMXalarmsareactive.Resetofalarmsisrequested.Toresetallactivealarms,continuouslypresstheEnterkey.‘rESETALArM’isthendisplayed.Presstheselectkeyagain:allalarmsarereset.

1[1] 1to55 Currentalarmcode1*2[1] 1to55 Currentalarmcode2*3[1] 1to55 Currentalarmcode3*4[1] 1to55 Currentalarmcode4*5[1] 1to55 Currentalarmcode5*1 Thisitemismaskedwhennil

NOTE* PressingtheEnterkeywhenalarmcodeisdisplayedcausesthefollowing

messagetobescrolled: “timeofalarm”“dateofalarm”“fullCCNalarmmessage” -“timeofalarm”:hh-mm -“date”:dd-mm -“fullCCNalarmmessage”:upto64characters TimeanddatearedisplayediftheunitisequippedwithanoptionalCCN/clock

board.

4.3.13 - Description of the Alarms History menu

Alarms history menuItem # Format Comments1[1] 1to55 Alarmhistorycode1*2[1] 1to55 Alarmhistorycode2*3[1] 1to55 Alarmhistorycode3*4[1] 1to55 Alarmhistorycode4*5[1] 1to55 Alarmhistorycode5*6[1] 1to55 Alarmhistorycode6*7[1] 1to55 Alarmhistorycode7*8[1] 1to55 Alarmhistorycode8*9[1] 1to55 Alarmhistorycode9*10[1] 1to55 Alarmhistorycode10*1 Thisitemismaskedwhennil

NOTE* PressingtheEnterkeywhenalarmcodeisdisplayedcausesthefollowing

messagetobescrolled: “timeofalarm”“dateofalarm”“fullCCNalarmmessage” -“timeofalarm”:hh-mm -“date”:dd-mm -“fullCCNalarmmessage”:upto64characters TimeanddatearedisplayediftheunitisequippedwithanoptionalCCN/clock

board.

4.3.14 - Runtime menu description

RUNTIMES

RUNTIMES 1[runtiMES 1]

RUNTIMES 2[runtiMES 2]

MAINTENANCE[MAintEnAnCE]

4.3.14.1 - Description of the Runtimes 1 menu

Runtimes menu [2]Item # Format Units Comments0 - - Whenselectedthisitemauthorises

returntothepreviousmenu1 nnnn|M10|M100 hrs/10or100 Unitoperatinghours*2[1] nnnn|M10|M100 hrs/10or100 Unitoperatinghoursincoolingmode3[1] nnnn|M10|M100 hrs/10or100 Unitoperatinghoursinheatingmode4[1] nnnn|M10|M100 hrs/10or100 CompressorA1operatinghours*5[1] nnnn|M10|M100 hrs/10or100 CompressorA2operatinghours*6[1] nnnn|M10|M100 hrs/10or100 CompressorB1operatinghours*7[1] nnnn|M10|M100 hrs/10or100 CompressorB2operatinghours*8 nnnn|M10|M100 -/10or100 Machinestarts*9 nnnn|M10|M100 -/10or100 CompressorA1starts*10[1] nnnn|M10|M100 -/10or100 CompressorA2starts*11[1] nnnn|M10|M100 -/10or100 CompressorB1starts*12[1] nnnn|M10|M100 -/10or100 CompressorB2starts*13[1] nn hrs/10or100 Evaporatorpump#1operatinghours*14[1] nn hrs/10or100 Evaporatorpump#2operatinghours*15[1] nn hrs/10or100 Condenserpump#1operatinghours*16[1] nn hrs/10or100 Condenserpump#2operatinghours*17[1] nn hrs/10or100 Open-loopcondenserpumpoperating

hours*1 Thisitemismaskedwhennotused

NOTES* Certainvaluesaredividedby10orby100,sothatnumberofhoursor

start-upsoflessthen10aredisplayedas0.Whenthevalueisdividedby10orby100itisdisplayedinturnwith“M10”or“M100”.

4.3.14.2 - Description of Runtimes 2 menu

Item # Format Units Description0 - - Whenselectedthisitemauthorisesreturntothe

previousmenu1 nn - Compressorstartsforcompressorwithmoststarts

duringthelasthour2 nn - 24hoursaveragenumberofstarts/hour,compressor3 - Minutes Minimumcompressoroperatingtimeduringlasthour4 nn Minutes 24hoursaverageminimumoperatingtimeabove

4.3.14.3 - Maintenance menu descriptionTo be active, the maintenance function must be preset in the Service configuration.

Item # Format Description0 MAintEnAnCEMEnu Whenselectedthisitemauthorisesreturntothe

previousmenu.1[1] AccessiblewiththeServicepassword.2[1] Forfutureuse3[1] ALErt Waterloopratetolow4[1] nnn/ALErt Nextevaporator#1pumpmaintenanceoperation

innnndays.‘ALErt’isdisplayed,whenthedelaybeforemaintenancehaselapsed.

5[1] nnn/ALErt Nextevaporator#2pumpmaintenanceoperationinnnndays.‘ALErt’isdisplayed,whenthedelaybeforemaintenancehaselapsed.

6[1] nnn/ALErt Nextcondenser#1pumpmaintenanceoperationinnnndays.‘ALErt’isdisplayed,whenthedelaybeforemaintenancehaselapsed.

7[1] nnn/ALErt Nextcondenser#2pumpmaintenanceoperationinnnndays.‘ALErt’isdisplayed,whenthedelaybeforemaintenancehaselapsed.

8[1] nnn/ALErt Nextopen-loopwaterpumpmaintenanceoperationinnnndays.‘ALErt’isdisplayed,whenthedelaybeforemaintenancehaselapsed.

9[1] nnn/ALErt Nextwaterfiltermaintenanceoperationinnnndays.‘ALErt’isdisplayed,whenthedelaybeforemaintenancehaselapsed.

1 Thisitemismaskedwhennotused.


24

5 - PRO-DIALOG PLUS CONTROL OPERATION

5.1 - Start/stop control

The table below summarises the unit control type and stop or go status with regard to the following parameters.• Operating type: this is selected using the start/stop

button on the front of the user interface.• Remote start/stop contacts: these contacts are used

when the unit is in remote operating type (rEM). See sections 3.6.2 and 3.6.3.

• cHIL_s_s: this network command relates to the chiller start/stop when the unit is in CCN control (CCn). Variable forced to disable: the unit is halted. Variable forced to Enable: the unit runs in accordance with schedule 1.

• start/stop schedule: occupied or unoccupied status of the unit as determined by the chiller start/stop program (Schedule #1). Used when the unit is equipped with an optional CCN/clock board, otherwise the chiller occupied mode is forced to occupied all the time.

• Master control type. This parameter is used when the unit is the master unit in a two chiller lead/lag arrange-ment. The master control type determines whether the unit is to be controlled locally, remotely or through CCN (this parameter is a Service configuration).

• ccN emergency shutdown: if this CCN command is activated, it shuts the unit down whatever the active operating type.

• General alarm: the unit is totally stopped due to failure.

ACTIVE OPERATING TYPE PARAMETER STATUS CONTROL TYPE

UNIT STATUSLOFF L-ON L-SC rEM CCN MASt CHIL_S_S REMOTE

START/STOP CONTACT

MASTER UNIT CONTROL TYPE

START/STOP SCHEDULE MODE

CCN EMERGENCY SHUTDOWN

GENERAL ALARM

- - - - - - - - - - Enable - - Off- - - - - - - - -. -. - Yes - OffActive - - - - - - - - - - - Local Off- - Active - - - - - - Unoccupied - - Local Off- - - Active - - - Off - - - - Remote Off- - - Active - - - - - Unoccupied - - Remote Off- - - - Active - Disable - - - - - CCN Off- - - - Active - - - - Unoccupied - - CCN Off- - - - - Active - - Local Unoccupied - - Local Off- - - - - Active - Off Remote - - - Remote Off- - - - - Active - - Remote Unoccupied - - Remote Off- - - - - Active Disable - CCN - - - CCN Off- - - - - Active - - CCN Unoccupied - - CCN Off- Active - - - - - - - - Disable No Local On- - Active - - - - - - Occupied Disable No Local On- - - Active - - - On - Occupied Dsable No Remote On- - - - Active - Enable - - Occupied Disable No CCN On- - - - - Active - - Local Occupied Disable No Local On- - - - - Active - On Remote Occupied Disable No Remote On- - - - - Active Enable - CCN Occupied Disable No CCN On

PARAMETER STATUSON/OFF STATUS CONTROL TYPE HEATING/COOLING OR

HEAT RECLAIM SELECTION IN LOCAL MODE

REMOTE HEATING/COOLING OR HEAT RECLAIM CONTACTS

HC_SEL or RECL_SEL OPERATING MODE

Off - - - - Cooling NormalOn Local Cooling - - Cooling NormalOn Local Heating - - Heating HeatreclaimOn Remote - Coolingmode - Cooling NormalOn Remote - Heatingmode - Heating HeatreclaimOn CCN - - Cooling Cooling NormalOn CCN - - Heating Heating Heatreclaim

25

5.2 - Heating/cooling operation

5.2.1 - GeneralThe heating/cooling selection applies to 30RW (liquid chillers) units, controlling a boiler or equipped with a heat pump option.

5.2.2 - Heating/cooling or heat reclaim selectionThe table below summarises the unit heating/cooling or heat reclaim operation, based on the following parameters:• control type: indicates whether the unit operates in

local, remote or CCN mode. See section 5.1.• Unit on/off status: indicates whether the unit is shut

down (not authorised to start) or in operation (or authorised to start).

• Heating/cooling or heat reclaim selection in local mode: operating mode selected via the user interface. See Information menu.

• Remote heating/cooling or heat reclaim contacts: these contacts are only active if the unit is under remote control. See sections 3.6.

• Hc_sEL: this network command permits heating/cooling control, if the unit is in CCN operating mode.

• REcL_sEL: this network command permits heat reclaim mode control, if the unit is in CCN mode. The heat reclaim mode is only accessible for 30RW and cooling only units. It requires a specific configuration.

5.3 - Evaporator water pump control

The unit can control one or two evaporator water pumps. The evaporator water pump is turned on when this option is configured (see User configuration) and when the unit is in one of the on modes described above or in delay mode. Since the minimum value for the delay at start-up is 1 minute (configurable between 1 and 15 minutes), the pump will run for at least one minute before the first compressor starts. The pump is kept running for 20 seconds before the unit goes to stop mode. It is turned off if the unit is shut down due to an alarm unless the fault is a frost protection error. See section 5.14 for the particular evaporator pump control for the follower unit (master/slave assembly).

If two pumps are controlled and the reversing function has been selected (see User 1 configuration), the control tries to limit the pump run time delta to the configured pump change-over delay. If this delay has elapsed, the pump reversing function is activated, when the unit is running. During the reversing function both pumps run together for two seconds.

If a pump has failed and a second pump is available, the unit is stopped and started again with this pump.

The control provides a means to automatically start the pump each day at 14.00 hours for 2 seconds when the unit is off. If the unit is fitted with two pumps, the first pump is started on odd days and the second pump is started on even days. Starting the pump periodically for few seconds increases the life-time of the pump bearings and the tightness of the pump seal.

5.4 - Condenser water pump control

The unit can control one or two condenser water pumps. These pumps can be fixed-speed or variable-speed pumps. Depending on the configuration the pump can start:• When the unit is in one of the modes described above.• When at least one compressor is operating.

It is turned off if the unit is shut down due to an alarm.

If two pumps are controlled and the reversing function has been selected (see User 1 configuration), the control tries to limit the pump run time delta to the configured pump change-over delay. If this delay has elapsed, the pump reversing function is activated, when the unit is running. During the reversing function both pumps run together for two seconds.

If a pump has failed and a second pump is available, the unit is stopped and started again with this pump.

The control provides a means to automatically start the pump each day at 14.00 hours for 2 seconds when the unit is off. If the unit is fitted with two pumps, the first pump is started on odd days and the second pump is started on even days. Starting the pump periodically for few seconds increases the life-time of the pump bearings and the tightness of the pump seal.

5.5 - Control interlock contact

This contact checks the status of a loop (water flow switch and customer safety loop, see section 3.6). It prevents the unit from starting if it is open when the delay at start-up has expired. This open contact leads to an alarm shut-down, if the unit is running.

5.6 - Control point

The control point represents the water temperature that the unit must produce. The evaporator or condenser return water temperature is controlled by default, but the evapo-rator or condenser leaving water temperature can also be controlled (requires a Service configuration modification).

Control point = active setpoint + reset

5.6.1 - Active setpointTwo setpoints can be selected as active in cooling mode and three in heating mode. Usually, the second cooling setpoint is used for unoccupied periods or for ice storage (brine unit). The second setpoint in heating mode is used for unoccupied periods, and the third heating setpoint is used for holiday periods or public holidays. Depending on the current opera-tions, the active setpoint can be selected by choosing the item in the Information menu, with the user’s volt-free contacts, with network commands or with the setpoint timer program (schedule 2).

26

The following table summarises the possible selections depending on the control types (local, remote or CCN) and the following parameters:• setpoint select in local control: item #13 of the Infor-

mation menu permits selection of the active setpoint, if the unit is in local operating type.

• Heating/cooling operating mode• control contacts: status of control contacts 5 and 6

(dual-circuit units only). These contacts are only active if the unit is in remote control operating type. See section 3.6.4.

• control contact 3: status of control contact 3 (single-circuit units only). See section 3.6.2.

• contol contact 3 selection: this selection, only used for single-circuit units, indicates if contact 3 is used for dual setpoint control or for demand limit control (see User Configuration menu).

• schedule 2 status: schedule for setpoint selection. See section 4.3.11.6.

Local operating modeParameter statusHeating/cooling operating mode

Local setpoint selection

Schedule 2 status

ACTIVE SETPOINT

Cooling sp1 - Cooling setpoint 1Cooling sp2 - Cooling setpoint 2Cooling Auto Occupied Cooling setpoint 1Cooling Auto Unoccupied Cooling setpoint 2Heating sp1 - Heating setpoint 1Heating sp2 - Heating setpoint 2Heating sp3 - Heating setpoint 3Heating Auto Occupied Heating setpoint 1Heating Auto Unoccupied Heating setpoint 2Heating Auto Holiday Heating setpoint 3

Remote operating mode - single-circuit unitsParameter statusHeating/cooling operating mode

Control contact 3 selection

Control contact 3

Schedule 2 status

Active setpoint

Cooling Setpoint Setpoint1 - Cooling setpoint 1Cooling Setpoint Setpoint2 - Cooling setpoint 2Cooling Demandlimit - Occupied Cooling setpoint 1Cooling Demandlimit - Unoccupied Cooling setpoint 2Heating Setpoint Setpoint1 - Heating setpoint 1Heating Setpoint Setpoint2 - Heating setpoint 2Heating Demandlimit - Occupied Heating setpoint 1Heating Demandlimit - Unoccupied Heating setpoint 2Heating Demandlimit - Holiday Heating setpoint 3

Remote operating mode - dual-circuit unitsParameter statusHeating/cooling operating mode

Control contacts

Schedule 2 status

Active setpoint

Cooling sp1 - Cooling setpoint 1Cooling sp2 - Cooling setpoint 2Cooling sp3 - Cooling setpoint 2Cooling Auto Occupied Cooling setpoint 1Cooling Auto Unoccupied Cooling setpoint 2Heating sp1 - Heating setpoint 1Heating sp2 - Heating setpoint 2Heating sp3 - Heating setpoint 3Heating Auto Occupied Heating setpoint 1Heating Auto Unoccupied Heating setpoint 2Heating Auto Holiday Heating setpoint 3

CCN operating modeParameter statusHeating/cooling operating mode

Schedule 2 status Active setpoint

Cooling Occupied Cooling setpoint 1Cooling Unoccupied Cooling setpoint 2Heating Occupied Heating setpoint 1Heating Unoccupied Heating setpoint 2Heating Holiday Heating setpoint 3

27

5.6.2 - ResetReset means that the active setpoint is modified so that less machine capacity is required (in cooling mode, the setpoint is increased, in heating mode it is decreased). This modifica-tion is in general a reaction to a drop in the load. For the Pro-Dialog control system, the source of the reset can be configured in the User 1 configuration: it can be provided either by the outdoor temperature (that gives a measure of the load trends for the building) or by the return water temperature (delta T that gives an average building load). In response to a drop in the outdoor temperature or to a drop in delta T, the cooling setpoint is normally reset upwards in order to optimise unit performance:

In both cases the reset parameters, i.e. slope, source and maximum value, are configurable in the Setpoints menu (see section 4.3.8). Reset is a linear function based on three parameters.• A reference at which reset is zero (outdoor

temperature or delta T - no reset value).• A reference at which reset is maximum (outdoor

temperature or delta T - full reset value).• The maximum reset value.

Reset example in cooling mode

5.8 - Night mode

The night period is defined (see User configuration) by a start time and an end time that are the same for each day of the week. During the night period, the fan runs at low speed, if permitted by the current operating conditions. In addition, the user can reduce the unit capacity.

5.9 - Capacity control

This function adjusts the number of active compressors to keep the heat exchanger water temperature at its setpoint. The precision with which this is achieved depends on the capacity of the water loop, the flow rate, the load, and the number of stages available on the unit. The control system continuously takes account of the temperature error with respect to the setpoint, as well as the rate of change in this error and the difference between entering and leaving water temperatures, in order to determine the optimum moment at which to add or withdraw a capacity stage. If the same compressor undergoes too many starts (per hour) or runs below one minute each time it is started this automatically brings about reduction of compressor starts, which makes leaving water temperature control less precise.

In addition, the high pressure or low pressure unloading functions can also affect the temperature control accuracy. Compressors are started and stopped in a sequence designed to equalise the number of start-ups (value weighted by their operating time).

5.10 - Head pressure control

5.10.1 - 30RW units in cooling modeThe control can regulate the following configurations:• Drycooler and variable-speed condenser pump. The fixed fan stages and the pump speed are controlled

in order to permit start-ups at low outside temperatures and permanent optimisation of the unit performances (no parameter setting required).

• Variable-speed condenser pump (no drycooler control). The pump speed is controlled in order to maintain a

fixed condensing setpoint (value can be adjusted).• Drycooler and three-way valves. The fixed fan stages and the three-way valve position

are controlled in order to permit start-ups at low outside temperatures and permanent optimisation of the unit performances (no parameter setting required).

• Three-way valve only (no drycooler control). The three-way valve position is controlled in order to

maintain a fixed condensing setpoint (value can be adjusted)

• Drycooler only (fan stages or Varifan). Only the drycooler fan stages are controlled, based on

a fixed entering condenser water setpoint.• Open-loop pump. The pump speed is controlled, based on a fixed con-

densing setpoint.

LegendA MaximumresetvalueB OATordeltaTfornoresetC OATordeltaTforfullresetD Buildingload

5.7 - Demand limit

Generally, demand limit is used by an energy management system to restrict the unit electricity consumption. The Pro-Dialog control system enables the capacity of the unit to be limited by means of user-controlled volt-free contacts. Single-circuit units only have one contact (control contact 3), available in the User Configuration function for demand limiting or setpoint selection. Dual-circuit units have two volt-free contacts that permit several limit levels. The capa-city of the unit cannot exceed the demand limit setpoint activated by the position of the contacts (see section 3.6.4 and 3.6.5 for the contact description). The demand limit setpoints are adjustable via the setpoint menu.

The demand limit is active in all operating types: Local, Remote or CCN. However in CCN operating type, demand limit can be controlled directly with the aid of CCN com-mands.

A limitation value of 100% means that the unit may call upon the full array of its capacity stages.

Resetvalue

Outdoortemperature(OAT)EvaporatorDeltaT

%Buildingload

28

5.10.2 - 30RWA unitsThe control offers two control modes (fan stages with or without Varifan)• Automatic mode. The fan stages are controlled in order

to permit start-ups at low outside temperatures and permanent optimisation of the unit performances (no parameter setting required).

• Manual mode. The fan stages are controlled based on a fixed condensing point.

5.11 - Control of a boiler

NOTE: The control of a boiler is not authorised for slave units.

The unit can control the start-up of a boiler, if it is in heating mode. When the boiler is operating, the unit water pump is stopped.

A heat pump unit and a boiler cannot operate together. In this case the boiler output is activated in the following conditions:• The unit is in heating mode, but a fault prevents the

use of the heat pump capacity.

5.12 - Master/slave assembly

Two Pro-Dialog Plus units can be linked to produce a master/slave assembly. The two machines are interconnected over the CCN bus. All parameters required for the master/slave function must be configured through the Service configura-tion menu. Master/slave operation requires the connection of a temperature probe at the common manifold on each machine, if the heat exchanger leaving water temperature is controlled.

The master/slave assembly can operate with constant or variable flow. In the case of variable flow each machine must control its own water pump and automatically shut down the pump, if the cooling capacity is zero. For constant flow operation the pumps for each unit are continuously operating, if the system is operating. The master unit can control a common pump that will be activated, when the system is started. In this case the slave unit pump is not used.

All control commands to the master/slave assembly (start/stop, setpoint, heating/cooling operation, load shedding, etc.) are handled by the unit which is configured as the master, and must therefore only be applied to the master unit. They will be transmitted automatically to the slave unit. The master unit can be controlled locally, remotely or by CCN commands. Therefore to start up the assembly, simply validate the Master operating type (MASt) on the master unit. If the Master has been configured for remote control then use the remote volt-free contacts for unit start/stop. The slave unit must stay in CCN operating type continuously. To stop the master/slave assembly, select Local Off (LOFF) on the master unit or use the remote volt-free contacts if the unit has been configured for remote control.

One of the functions of the master unit (depending on its configuration) may be the designation, whether the master or slave is to be the lead machine or the follower. The roles of lead machine and follower will be reversed when the difference in running hours between the two units exceeds a configurable value, ensuring that the running times of the two units are automatically equalised. The changeover between lead machine and follower may take place when the assembly is started up, or even whilst running. The running time balancing function is not active if it has not been configured: in this case the lead machine is always the master unit.

The lead machine will always be started first. When the lead machine is at its full available capacity, start-up delay (configurable) is initialised on the follower. When this delay has expired, and if the error on the control point is greater than 1.7°C, the follower unit is authorised to start and the pump is activated. The follower will automatically use the master unit active setpoint. The lead machine will be held at its full available capacity for as long as the active capacity on the follower is not zero. When the follower unit receives a com-mand to stop, its evaporator water pump is turned off with 20 seconds delay.

In the event of a communication fault between the two units, each shall return to an autonomous operating mode until the fault is cleared. If the master unit is halted due to an alarm, the slave unit is authorised to start without prior conditions.

5.13 - Controlling Pro-Dialog Plus units with a System Manager

Up to eight Pro-Dialog Plus units (or System Manager compatible units) can be controlled by one control module of the FSM, CSM III or HSM type which can handle multi-tasking of control functions such as starting units in sequence.

29

6 - DIAGNOSTICS - TROUBLESHOOTING

6.1 - General

The Pro-Dialog Plus control system has many fault tracing aid functions. The local interface and its various menus give access to all unit operating conditions. The test function makes it possible to run a quick test of all devices on the unit. If an operating fault is detected, an alarm is activated and an alarm code is stored in the Alarm menu.

6.2 - Displaying alarms

The alarm LEDs on the summary interface (see section 4.1) give a quick display of the status of each circuit and the unit as a whole.• A flashing LED shows that the circuit is operating but

there is an alarm.• A steady LED shows that the circuit has been shut

down due to a fault.

The Alarm menu on the main interface displays up to 5 fault codes that are active on the unit.

6.3 - Resetting alarms

When the cause of the alarm has been corrected the alarm can be reset, depending on the type, either automatically on return to normal, or manually when action has been taken on the unit. Alarms can be reset even if the unit is running.

This means that an alarm can be reset without stopping the machine. In the event of a power supply interrupt, the unit restarts automatically without the need for an external command. However, any faults active when the supply is interrupted are saved and may in certain cases prevent a circuit or a unit from restarting.

A manual reset must be run from the main interface using the following procedure:

Reset of active alarmsOperation Item number

2-digit displayItem value4-digit display

Press button

Menu LED

HolddowntheMENUbuttonuntiltheLEDforalarmslights.The4-digitdisplayshowsthenumberofactivealarms(2inthisexample).

00

2ALArM

PresstheEnterbuttonuntil“rESEtALARrM”isshowninthe4-digitdisplay.

0 rESEtALArM

PresstheEnterbuttonagaintovalidatethereset.“Good”isdisplayedfor2secondsthen,“2ALArM”andthen,“noALArM”.

0 "Good"then"2AL"then,"noALArM"

30

6.4 - Alarm codes

The following list gives a complete description of each alarm code and its possible cause.

Alarm code

Alarm name Alarm description Action taken by the control

Reset type Probable cause

1 CompressorA1failure Motorsafetyinputhasopenedduetocompressorovertem-peratureprotection.

Compressorisshutdown Manual Compressoroverheat

2 CompressorA2failure Asabove Asabove Asabove Asabove5 CompressorB1failure Asabove Asabove Asabove Asabove6 CompressorB2failure Asabove Asabove Asabove Asabove9 Evaporatorleavingwater

thermistorfailureThermistoroutsiderange Unitshutdown Automatic,iftemp.measuredbysensor

returnstopermittedrangeofvaluesFaultythermistor,wiringerrorordisconnection

10 Evaporatorenteringwaterthermistorfailure

Asabove Asabove Asabove Asabove

11 CHWSthermistorfailure(master/slave)


12 Condenserleavingwaterthermistorfailure

Asabove Unitshutdownforheatpumps,otherwisenoaction

Asabove Asabove

13 Condenserenteringwaterthermistorfailure


14 OATsensorfailure Asabove Unitshutdown Asabove Asabove15 Drycoolerleavingwater

thermistorfailureThermistoroutsiderange Unitshutdownifitisin

coolingmodeAsabove Asabove

16 Dischargepressuretransducerfailure,CircuitA

Voltagedeliveredbythesensorisincorrect

CircuitAshutdown Automaticifthevoltagedeliveredbythesensorreturnstonormal

Defectivetransducer,wiringfault

17 Dischargepressuretransducerfailure,CircuitB

Valuereadbythesensorisoutsiderange

CircuitBshutdown Asabove Asabove

18 Suctionpressuretransducerfailure,CircuitA

Voltagedeliveredbythesensorisincorrect

CircuitAshutdown Asabove Asabove

19 Suctionpressuretransducerfailure,CircuitB

Valuereadbythesensorisoutsiderange

CircuitBshutdown Asabove Asabove

21 CCN/clockboardfailure Theclockboardisnolongerdetected

Unitshutdown Automaticifboardisdetectedagain DefectiveCCN/clockboard

22 Lossofcommunicationwithslaveboard

Communicationhasbeenlostwiththeslaveboard(circuitBcontrol)

CircuitBshutdown Automaticifcommunicationisre-established

Buswiringfault,wrongsoftwareinslaveboardordefectiveslaveboard

23 LossofcommunicationwithPD_AUX1board

Communicationhasbeenlostwiththedrycoolerorremotecondensercontrol

Unitshutdown Asabove Asabove

24 Lossofcommunicationwithvariable-speeddrive1

Communicationhasbeenlostwiththecondenserpump1control

Changeovertosecondcondenserpump,ifavailable,otherwiseunitshutdown

Asabove Asabove

25 Lossofcommunicationwithvariable-speeddrive2

Communicationhasbeenlostwiththecondenserpump2control

Changeovertofirstcondenserpump,ifavailable,otherwiseunitshutdown

Asabove Asabove

30 Lowrefrigerantpressurefailure,circuitA

Circuitrunningandthesuctionpressurebelowthreshold

Circuitshutdown Automaticwhenpressurereturnstonormalandifthesamefaulthasnotoccurredthesameday(machineequippedwithCCN/clockboard,Ifnot,manual)

Shortageofrefrigerant,filterblockedorfaultypressuresensor

31 Lowrefrigerantpressurefailure,circuitB


32 Highpressurefailure,circuitA

Circuitrunningandthedischargepressureexceedsthehighpressuretrippoint

Circuitshutdown Automaticwhenpressurereturnstonormalandifthesamefaulthasnotoccurredthesameday(machineequippedwithCCN/clockboard,Ifnot,manual).Thehighpressureswitchmayhavetobereset.

Fancircuitfault,highcondenserenteringairtemperature

33 Highpressurefailure,circuitB


34 Highpressureswitchnotresetorcompressorreverserotation,circuitA

Thehighpressureswitchhasnotbeenresetfollowingahighpressuretriporonecircuitcompressorrunsinreverserotation

Asabove Manual.Thehighpressureswitchmayhavetobereset.

Thehighpressureswitchhasnotbeenresetsincethehighpressurealarmwasreset,incorrectcompressorwiring

35 Highpressureswitchnotresetorcompressorreverserotation,circuitB


36 Waterheatexchangerfrostprotection

Theheatexchangerenteringorleavingwatersensorisbelowthefrosttrippoint

Unitshutdown Automaticifthesamealarmhasnottrippedthesameday(machineequippedwithCCN/clockboard,Ifnot,manual)

Lowwaterflowordefectivethermistor

37 Repeatedlowevaporatorsuctiontemperatureunloading,circuitA

Morethan6successivecircuitcapacityunloadsbecauseoflowsuctiontemperatureoverride.

Circuitshutdown Manual Faultypressuresensor,cloggedfilterorlowrefrigerantcharge

38 Repeatedlowevaporatorsuctiontemperatureunloading,circuitB


31

Alarm code descriptions (continued)

Alarm code

Alarm name Alarm description Action taken by the control Reset type Probable cause

39 Repeatedhighpressureunloading,circuitA

Morethan6successivecircuitcapacityunloadsbecauseofhighpressureoverride.

None Automatic Faultytransducer,highcondenserenteringairtemperature,highenteringwatertemperature,con-denserfouledfanflowratetoolow.

40 Repeatedhighpressureunloading,circuitB


41 Repeatedhighdischargetemperatureunloading,circuitA

Morethan8successivecircuitcapacityunloadsbecauseofhighdischargetemperature

Asabove Asabove Pressuresensorfaultyorheatexchangerfouled

42 Repeatedhighdischargetemperatureunloading,circuitB


43 Safetyinterlockopen Safetyinterlocknotclosedbeforeendofthestart-updelayoropensduringoperation

Unitpreventedtostartorshutdown

Manual Evaporatorpumpcontrolorwaterflowswitchfailure

44 Pump#1fault Evap.waterpumpruncontactopenswhilethepumphasreceivedacommandtobeon

Changeovertosecondpump,ifavailable,otherwiseunitshutdown

Manual Pumpoverheat,incorrectpumpconnection

45 Pump#2fault Asabove Changeovertofirstpump,ifavailable,otherwiseunitshutdown

Manual Asabove

4646-146-246-346-446-546-846-946-1046-7446-105

Fault,condenserpump1VoltagetoohighOvercurrentMotoroverloadMotoroverheatedTransformeroverheatedUSScommunicationVoltagetoolowIncorrectinitialisationMotoroverheated,calculationl2lInternaloverheating,Combimaster

Fixed-speedpump:pumpoperationcontactopen

Variable-speedpump:variable-speeddrivefault

Changeovertosecondpump,ifavailable,otherwiseunitshutdown

Manual Pumporvariable-speeddrivefault

47 Fault,condenserpump2 Asabove Asabove Asabove Asabove50 CCNemergencystop CCNcommandreceivedto

shutdowntheunitUnitshutdown Manual Networkcommand

51 LossofcommunicationwithSystemManager

TheunitiscontrolledbyaSystemManagerandcommunicationwiththismoduleislostformorethan2minutes

Unitreturnstoautonomousoperatingmode

Automaticwhencommunicationisre-established

DefectiveCCNbuswiringorsystemmodulefailure

52 Communicationfailurewiththemasterortheslaveunit

Themaster/slavelinkisbrokenduetoalossofcommunicationbetweenthetwounitsformorethan2minutes

Asabove Asabove Asabove

53 Initialfactoryconfigurationrequired Allfactoryparametersarezero Unitpreventedtostart Automatic Nofactoryconfiguration54 Illegalconfiguration Wrongconfiguration Asabove Automatic Factoryconfigurationerror55 Master/slaveconfigurationerror Wrongmaster/slaveconfiguration Master/slavecontroldisabled Automatic Masterorslaveconfigurationerror

56-256-3

56-4

56-5

56-6

56-7

56-8

MaintenancealertsWaterloopflowratetoolowMaintenancedelay,evaporatorpump1,elapsedMaintenancedelay,evaporatorpump2,elapsedMaintenancedelay,condenserpump1,elapsedMaintenancedelay,condenserpump2,elapsedMaintenancedelay,open-loopwaterpump2,elapsedMaintenancedelay,waterfilter,elapsed

Amaintenancealertisactive None Manual

OrderNo.13432-76,10.2011.SupersedesorderNo.:13432-76,06.2004. Manufacturedby:CarrierSCS,Montluel,France.Manufacturerreservestherighttochangeanyproductspecificationwithoutnotice. PrintedintheEuropeanUnion.

30rw - 30rwa pro-dialog control · 4 3 - hardware description 3.1 - general figure 1 - control...

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