Carrier 30RY-RYH, 30RA-RH User Manual

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AQUASNAP

30RA/RH “B” 30RY/RYH “B”

PRO-DIALOG Control

Operation and maintenance instructions

TABLE OF CONTENTS

1 - SAFETY CONSIDERATIONS..................................................................................................................................................4

1.1 - General .................................................................................................................................................................................4

1.2 - Avoid electrocution ..............................................................................................................................................................4

2 - GENERAL DESCRIPTION ......................................................................................................................................................4

2.1 - General .................................................................................................................................................................................4

2.2 - Abbreviations used ...............................................................................................................................................................4

3 - HARDWARE DESCRIPTION..................................................................................................................................................5

3.1 - General .................................................................................................................................................................................5

3.2 - Electrical supply to boards ...................................................................................................................................................5

3.3 - Light emitting diodes on boards...........................................................................................................................................5

3.4 - The sensors ...........................................................................................................................................................................5

3.5 - The output controls...............................................................................................................................................................5

3.6 - Connections at the user's terminal block ..............................................................................................................................6

3.6.1 - General description ......................................................................................................................................................6

3.6.2 - Volt-free contact on/off/cooling/heating without multiplexing ..................................................................................8

3.6.3 - Volt-free contact on/off/cooling/heating with multiplexing........................................................................................8

3.6.4 - Demand limit or setpoint volt-free contact for single-circuit units .............................................................................8

3.6.5 - Demand limit volt-free contact for dual-circuit units ..................................................................................................8

3.6.6 - Water setpoint selection volt-free contact with multiplexing for dual-circuit units....................................................8

4 - SETTING UP PRO-DIALOG CONTROL ..............................................................................................................................9

4.1 - Local interface general features............................................................................................................................................9

4.2 - Unit start/stop control .........................................................................................................................................................10

4.2.1 - Description................................................................................................................................................................. 10

4.2.2 - Stopping the unit in local mode .................................................................................................................................10

4.2.3 - Starting unit and selecting an operating type............................................................................................................. 10

4.3 - Menus .................................................................................................................................................................................11

4.3.1 - Selecting a menu ........................................................................................................................................................11

4.3.2 - Selecting a menu item................................................................................................................................................ 11

4.3.3 - Modifying the value of a parameter/access to a sub-menu........................................................................................11

4.3.4 - Expand display...........................................................................................................................................................12

4.3.5 - Description of the Information menu.........................................................................................................................15

4.3.6 - Description of the Temperatures menu......................................................................................................................17

4.3.7 - Description of the Pressures menu.............................................................................................................................17

4.3.8 - Description of the Setpoints menu............................................................................................................................. 17

4.3.9 - Description of the Inputs menu..................................................................................................................................18

4.3.10 - Description of the Outputs/Tests menu ...................................................................................................................19

4.3.11 - Description of the configuration menu ....................................................................................................................22

4.3.12 - Description of the Alarms menu ..............................................................................................................................28

4.3.13 - Description of the Alarms History menu .................................................................................................................28

4.3.14 - Runtime menu description .......................................................................................................................................28

5 - PRO-DIALOG CONTROL OPERATION ............................................................................................................................29

5.1 - Start/stop control ................................................................................................................................................................29

5.2 - Heating/cooling operation ..................................................................................................................................................30

5.2.1 - General.......................................................................................................................................................................30

5.2.2 - Heating/cooling selection ..........................................................................................................................................30

5.3 - Evaporator water pump control ..........................................................................................................................................31

5.4 - Control interlock contact ....................................................................................................................................................31

5.5 - Evaporator heater control ................................................................................................................................................... 31

5.6 - Control point.......................................................................................................................................................................31

5.6.1 - Active setpoint ...........................................................................................................................................................31

5.6.2 - Reset...........................................................................................................................................................................33

5.7 - Demand limit ......................................................................................................................................................................33

5.8 - Night mode .........................................................................................................................................................................33

5.9 - Capacity control..................................................................................................................................................................33

5.10 - Head pressure control .......................................................................................................................................................33

5.11 - Defrost function................................................................................................................................................................34

5.12 - Additional electric heater stage control ............................................................................................................................34

5.13 - Control of a boiler ............................................................................................................................................................34

5.14 - Master/slave assembly...................................................................................................................................................... 34

5.15 - Controlling Pro-Dialog units with a System Manager .....................................................................................................34

6 - DIAGNOSTICS - TROUBLESHOOTING ............................................................................................................................35

6.1 - General ...............................................................................................................................................................................35

6.2 - Displaying alarms...............................................................................................................................................................35

6.3 - Resetting alarms .................................................................................................................................................................35

6.4 - Alarm codes........................................................................................................................................................................35

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

GENERAL LEGEND

Start/stop button

Return key

Down arrow

Up arrow

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.

1 - SAFETY CONSIDERATIONS

2 - GENERAL DESCRIPTION

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 ser vicing 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 (International 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 electromagnetic signals. Tests have shown that the equipment conforms to all applicable codes with respect to electromagnetic 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.

Fan start-up: ATTENTION: In accordance with the operating conditions the fans can be cleaned periodically. A fan can start at any time, even if the unit has been shut down.

2.1 - General

Pro-Dialog is a system for controlling single or dual-circuit 30RA/RY air-cooled liquid chillers or air-to-water 30RH/RYH heat pumps. Pro-Dialog controls compressor start-up needed to maintain the desired heat exchanger entering or leaving water temperature. In cooling mode it controls the operation of the fans to maintain the correct condensing pressure in each circuit. For heat pump units it controls and optimises the defrost cycles of each circuit in order to minimize the heating capacity reduction. Safety devices are constantly monitored by ProDialog to ensure their safe operation. Pro-Dialog also gives access to a Quick Test program covering all inputs and outputs.

All PRO-DIALOG 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 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, A2 and A3. Those in circuit B are B1, B2 and B3.

The following abbreviations are used fr equently:

CCN : Carrier Comfort Network CCn : Operating type: CCN LED : Light Emitting Diode LOFF : Operating type: Local Off L-On : Operating type: Local On mode L-Sc : Operating type: Local On following a time schedule MASt : Operating type: master unit (master/slave assembly) rEM : Operating type: by remote contacts SCT : Saturated Condensing Temperature SIO : Sensor Bus (internal communication bus linking the

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

3 - HARDWARE DESCRIPTION

3.2 - Electrical supply to boards

3.1 - General

Figure 1

Legend

1 CCN connector 2 Red LED, status of the board 3 Green LED, communication bus SIO 4 Orange LED, communication bus CCN 5 Remote master board customer control connection contacts 6 Remote slave board customer control connection contacts 7 Master board customer connection relay outputs 8 Slave board customer connection relay outputs 9 Master NRCP basic board 10 Slave NRCP basic board

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. Heat pump units equipped with optional additional heater stages use an additional board, type PD-AUX. 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 basic board and gives access to a full array of control parameters.

All boards, except the PD-RCPM board, 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 NRCPBASE 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.

• The orange LED of the master board flashes during any communication via the CCN bus.

3.4 - The sensors

Pressure sensors

Two types of electronic sensors are used to measure the suction and discharge pressure in each circuit.

Thermistors

The evaporator water sensors are installed in the entering and leaving side. The outdoor temperature sensor is mounted below the control box. An optional water system temperature sensor can be used for master/slave assembly control (in the case of leaving water control).

In heat pump units a sensor placed on an air heat exchanger pipe ensures defrost operation.

3.5 - The controls

3.6 - Connections at the user's terminal block

Evaporator pumps

The controller can regulate one or two evaporator pumps and takes care of automatic change-over between pumps.

Evaporator heater

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

Boiler

This relay output authorises start/stop of a boiler.

Condensate defrost heater

This heater is used for heat pump units and is located at the bottom of the air heat exchanger of each circuit. It prevents ice build-up, if defrost cycles are initiated at low outdoor temperatures.

SINGLE-CIRCUIT UNITS Description

Alarm relay output Boiler relay output

Connector/channel

J3 / CH24 J3 / CH25

Terminal

30 - 31 37 - 38

Board

NRCP-BASE NRCP-BASE

3.6.1 - General description

The 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.

Remarks

Indicates alarms Boiler start/stop control output.

See section 5.13.

Remarks

Volt-free contact 24 V a.c. 48 V d.c. max, 20 V a.c. or V d.c., 3 A max, 80 mA min, external power supply .

Contact 1: start/stop/heat/cool

Contact 2: start/stop/heat/cool

Contact 3: demand limit selection or setpoint selection

User safety loop input

Connection to CCN

J4 / CH8

J4 / CH9

J4 / CH10

J4 / CH11a

J12

32 - 33

63 - 64

73 - 74

34 - 35

1 - 2 - 3

NRCP-BASE

The contacts are used for unit start/stop and heat/cool control. The y are only taken into account if the unit is under remote operation control (rEM).

See the description of these contacts in sections 3.6.2 and 3.6.3.

Depending on the configuration, this dry contact can be used for remote setpoint selection or demand limit selection (see sections 4.3.11.3 and 3.6.4).

- The remote setpoint selection contact is only taken into account if the unit is in remote control operating type.

- The remote demand limit selection contact is active whatever the operating type of the unit.

This contact is mounted in series with the water flow control contact. It can be used for any customer safety loop that requires that the unit is stopped, if it is open. If it is unused this contact must be bridged.

An RS-485 bus is used for connection to the CCN.

- Pin 1: signal +

- Pin 2: ground

- Pin 3: signal -

Connector: 4 pin WAGO 734-104 pitch 3.5. One per board needed.

24 V a.c., 20 mA

Connector: 8 pin WAGO 734-168, pitch 3.5

Connector: 3 pin WAGO 231-303, pitch 5.08

DUAL-CIRCUIT UNITS Description

Alarm relay output circuit A

Alarm relay output circuit B

Boiler relay output

Contact 1: start/stop/heat/cool

Contact 2: start/stop/heat/cool

Contact 3: demand limit selection

Contact 4: demand limit selection

Contact 5: setpoint selection

Control contact 6: setpoint selection

User safety loop input

Connection to CCN

Connector/channel

J3 / CH24

J3 / CH25

J4 / CH8

J4 / CH9

J4 / CH10

J4 / CH8

J4 / CH9

J4 / CH11a

J12

Terminal

30A - 31A

30B - 31B

37 - 38

32 - 33

63 - 64

73 - 74

75 - 76

65 - 66

67 - 68

34 - 35

1 - 2 - 3

Board

Master NRCPBASE

Slave NRCPBASE

Master NRCPBASE

Slave NRCP-BASE

Master NRCP-BASE

Remarks

Indicates alarms/alerts f or circuit A*

Indicates alarms/alerts f or circuit B*

Boiler start/stop control output. See section 5.13.

The contacts are used for unit start/stop and heat/cool control. The y are only taken into account if the unit is under remote operation control (rEM).

See the description of these contacts in sections 3.6.2 and 3.6.3.

These dry contacts are used for demand limit selection. See description of these contacts in section 3.6.5.

The remote demand limit selection contact is active whatever the operating type of the unit.

These dry contacts are used for setpoint selection. They are only taken into account if the unit is in remote control operating type (rEM).

See the description of these contacts in sections 3.6.6.

An RS-485 bus is used for connection to the CCN.

- Pin 1: signal +

- Pin 2: ground

- Pin 3: signal -

Remarks

Volt-free contact 24 V a.c. 48 V d.c. max, 20 V a.c. or V d.c., 3 A max, 80 mA min, external power supply .

Connector: 4 pin WAGO 734-104 pitch 3.5. One per board needed.

24 V a.c., 20 mA Connector: 8 pin WAGO

734-168, pitch 3.5

Connector: 3 pin WAGO 231-303, pitch 5.08

* The operation of these relays can vary depending on the user configuration. See section ‘Description of the User 2 configuration sub-menu’.

3.6.2 - Volt-free contact on/off/cooling/heating without multiplexing

If the automatic heating/cooling changeover function is not selected (see sections 4.3.11.3, 5.1 and 5.2) the operation of contacts 1 and 2 is as follows:

OFF ON cooling ON heating

Contact 1 Open Closed Closed Contact 2 - Open Closed

Contact status not significant

3.6.3 - Volt-free contact on/off/cooling/heating with multiplexing

If the automatic heating/cooling changeover function is selected (see sections 4.3.11.3, 5.1 and 5.2) the operation of contacts 1 and 2 is multiplexed:

OFF ON cooling ON heating ON auto

Contact 1 Open Closed Closed Open Contact 2 Open Open Closed Closed

NOTE: The automatic changeover function (ON auto) selects the cooling or heating mode based on the outdoor temperature (see section 5.2).

3.6.5 - Demand limit volt-free contact for dual-circuit units

On 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% Limit 1 Limit 2 Limit 3 (no limit)

Contact 3 Open Closed Open Closed Contact 4 Open Open Closed Closed

3.6.6 - Water setpoint selection volt-free contact with multiplexing for dual-circuit units

On 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 mode

Setpoint 1 Setpoint 2 Setpoint 3 Auto

Contact 5 Open Open Closed Closed Contact 6 Open Closed Open Closed

Heating mode

Setpoint 1 Setpoint 2 Setpoint 3 Auto

Contact 5 Open Open Closed Closed Contact 6 Open Closed Open Closed

3.6.4 - Demand limit or setpoint volt-free contact for singlecircuit units

On 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 selection 100% Limit 1 Setpoint 1 Setpoint 2

(no limit)

Contact 3 Open Closed Open Closed

4 - SETTING UP PRO-DIALOG CONTROL

4.1 - Local interface general features

MAIN INTERFACE SUMMARY INTERFACE

MENU BLOCK

PRO-DIALOG PLUS INTERFACE

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

• A two-digit display showing the number of the item selected.

PRO-DIALOG JUNIOR INTERFACE

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

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

selected.

• LEDs and buttons for unit start/stop, menu selection, menu item selection and value adjustment.

Main interface

It gives access to all PRO-DIALOG data and operating functions. It consists of:

PRO-DIALOG Junior interface: On some units the local user interface consists only of a simplified main interface (left-hand section) that is identical to the main interface described below, but does not include the menu block diodes.

MAIN INTERFACE BUTTON NAME DESCRIPTION

Menu Permits the selection of a main menu. Each main menu is represented by an icon. The icon is lit if active.

Up arrow Permits scrolling through the menu items (in the two-digit display). If the modification mode is active this button authorises

Down arrow Permits scrolling through the menu items (in the two-digit display). If the modification mode is active this button authorises

Enter Gives access to the modification mode, validates a modification or displays expanded item description.

Start/stop Authorises start or stop of the chiller in local mode or modification of its operating type.

MAIN INTERFACE MENU LED'S LED* NAME DESCRIPTION INTERFACE DISLAY

INFORMATION menu Displays the general operating parameters for the unit. Information

increase of the value of any parameter.

decrease of the value of any parameter.

TEMPERATURES menu Displays the unit operating temperatures. Temperatures

kPa

* Not available on the PRO-DIALOG Junior interface.

PRESSURES menu Displays the unit operating pressures. Pressures

SETPOINTS menu Displays the unit setpoints and enables them to be modified. Setpoints

INPUTS menu Displays the status of the unit digital and analogue inputs. Inputs

OUTPUTS/TESTS menu Displays the status of the unit outputs and enables them to be tested. Outputs

CONFIGURATIONS menu Displays the unit configuration and enables it to be modified. Confguration

ALARMS menu Displays active alarms. Alarms

ALARMS HISTORY menu Displays the history of the alarms. History

RUNTIMES menu Displays the operating times and number of starts for the unit and the Runtimes

compressors.

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 LEDs* LED INDICATION WHEN LIT

Green LED:

The unit is authorised to start or is already running

Red LED:

- Lit: circuit A or unit shut down by alarm

- Flashing: circuit A or unit running with alarm present

Red LED:

- Lit: circuit B or unit shut down by alarm

- Flashing: circuit B or unit running with alarm present

Red LED:

Water flow switch default or user safety loc k open.

Green LED:

The evaporator pump is running.

Yellow LEDs:

From top to bottom - start/stop status of compressor A1, A2 and A3 or B1, B2 and B3. Flashing LED indicates that the circuit is in the protection or defrost mode (A or B).

Green LED:

The unit operates in heating mode.

Green LED:

The unit operates in cooling mode.

* Not available on the PRO-DIALOG Junior interface.

SUMMARY INTERFACE PUSH BUTTONS* BUTTON DISPLAY

Blue button: evaporator leaving or entering water temperature in °C Gray button: outdoor air temperature in °C

Control point (setpoint + reset) in °C

Press 1: circuit A/B discharge pressure in kPa Press 2: circuit A/B saturated condensing temperature in °C

Press 1: circuit A/B suction pressure in kPa Press 2: circuit A/B saturated suction temperature in °C

Press 1: compressor A1/B1 operating hours in h/10 or h/100 Press 2: compressor A2/B2 operating hours in h/10 or h/100 Press 3: compressor A3/B3 operating hours in h/10 or h/100

* Not available on the PRO-DIALOG Junior interface.

4.2 - Unit start/stop control

4.2.1 - Description

The 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 following operating types can be selected using the Start/Stop button:

OPERATING TYPES

4 DIGIT DISPLA Y DESCRIPTION

LOFF Local Off. The unit is halted in local mode. L-On Local On. The unit is in local control mode and is

L-Sc* Local On - timer control. The unit is in local control

CCN* CCN. The unit is controlled by CCN commands. rEM* Remote. The unit is controlled b y remote control

MAST* Master Unit. The unit runs as a master in a two unit

Legend

* Displayed if the configuration requires it.

Section 5.1 gives a more detailed description of the commands to start/stop the unit, analysed by operating type.

authorised to start.

mode. It is authorised to start if the period is occupied. If the timer program for unit operation is unoccupied, the unit remains shut down until the period becomes occupied.

contacts.

lead/lag arrangement. This is displayed if the unit is configured for master/slave control.

4.2.2 - Stopping the unit in local mode

The unit can be stopped in local mode at any time by pressing the Start/Stop button.

TO STOP THE UNIT BUTTON ACTION 2-DIGIT DISPLAY 4-DIGIT DISPLAY

Press the Start/Stop C LOFF button for less than 4 seconds (one short press is enough).

If the button is t LOFF released, the unit stops without the need for further action.

4.2.3 - Starting unit and selecting an operating type

The 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.

START UP WITH THE PREVIOUSLY USED OPERA TING TYPE WHEN THE UNIT IS STOPPED IN LOCAL MODE (LOFF)

BUTTON ACTION

The unit is in local stop mode. The previously used operating type is local on (L-ON)

Press the Start/Stop button for 4 seconds (one short press-down is sufficient). L-ON illuminates immediately. "C" flashes in the 2-digit display to show that the controller is awaiting confirmation.

Press the Enter button to confirm the operating type. "t" is displayed in the 2-digit display to indicate the operating type selected. If the Enter button is not pressed soon enough, the controller will cancel the change and remain in the stop mode.

2-DIGIT 4-DIGIT DISPLAY DISPLAY

LOFF

L-On

t L-On

The available operating types are described in the following table.

CHANGING THE OPERATING TYPE BUTTON ACTION

Continually press the operating type selection button for more than 4 seconds.

Hold down the Start/Stop button. The available operating types are displayed one by one until the button is released.

Release the Start/Stop button if the operating type you want is displayed (in this example L-On). "C" flashes in the 2-digit display to show that the controller is awaiting confirmation.

Press the Enter button to confirm the operating type selected (in this example: L-On). "t" is displayed in the 2-digit display to indicate the operating type selected. If the Enter button is not pressed soon enough, the controller will cancel the change and continue to use the previous operating type.

2-DIGIT 4-DIGIT DISPLAY DISPLAY

C LOFF

L-On L-Sc

rEM L-On

t L-On

4.3 - Menus

4.3.1 - Selecting a menu

The 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.

4.3.3 - Modifying the value of a parameter/access to a submenu

Press 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 as well as the 2digit display flash in the menu block. Once the required value is obtained, press the Enter button again to validate the c hange or to acc e s s t h e sub-m e nu. The LED for the menu to which the item and the 2-digit display belong then stops flashing, indicating that modification 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.

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

4.3.2 - Selecting a menu item

The 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 configuration 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 ITEM OPERATION PRESS MENU LED ITEM NUMBER

Press the MENU button until the 0 LED marked PRESSURE lights.

Note: On the PRO-DIALOG Junior interface the menu LEDs are not available. Instead, each time the menu button is pressed, the name of the active menu is dsplayed in the 4-digit display. In this example, press the MENU button until PRESSURE is displayed in the 4-digit display.

BUTTON 2-DIGIT

DISPLAY

kPa

Press one of the Arrow buttons 1 until the two-digit display shows 3 (item number 3).

kPa

4.3.4 - Expand display

Pressing 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.

MODIFYING THE VALUE OF A PARAMETER OPERA TION PRESS BUTTON MENU LED ITEM NUMBER ITEM VALUE

Hold on the MENU button until the LED for SETPOINT lights. PRO-DIALOG Junior interface: Press the menu button, until SETPOINTS is

displayed in the 4-digit display

Press one of the Arrow buttons until the two-digit display shows 1 (item number 1- cooling setpoint 2). The value for setpoint 2 is displayed in the four-digit display (6.0°C in this example).

2-DIGIT DISPLAY 4-DIGIT DISPLAY

0 SEtPoint 1

1 6.0

Press the Enter button for more than 2 seconds to enable the value associated with item 1 to be modified. The Setpoint menu LED and the two-digit displa y flash indicating that modification mode is active.

Keep pressing the Down Arro w b utton until the value 5.7 is displa y ed in the f ourdigit display. The Setpoint menu LED and the two-digit displa y keep flashing.

Press the Enter button again to validate the change. The new setpoint is 5.7°C . The Setpoint menu LED and the two-digit display stop flashing, indicating that modification mode no longer applies.

1 1

1 5.7

6.0

5.9

5.8

5.7

MENU STRUCTURE

MAINTENANCE

[MAintEnAnCE]

ALARMS

RUNTIME 2

[RuntiME 2]

RUNTIME 1

[RuntiME 1]

[FACtorY]

FACTORY

SERVICE

[SErviCE]

SUB-SUB-MENUS

SUB-MENUS

HSM

[HSM]

[MAStEr SLAvE]

MASTER/SLAVE

[SErviCE 2]

SERVICE 2

[SErviCE 1]

SERVICE 1

[brodCASt]

BROADCAST

NOTE: The items in brackets show what is

displayed on the user interface.

MAIN MENUS

USER

[USEr]

[dAtE]

HOUR + DATE

[HoLidAy]

HOLIDAYS

SCHEDULE 2

[SCHEduLE 2]

SCHEDULE 1

[SCHEduLE 1]

USER 2

[USEr 2]

USER 1

[USEr 1]

[HoLidAy 1]

HOLIDAYS 1

[PEriod 1]

PERIOD 1

[PEriod 1]

PERIOD 1

[HoLidAy 3]

[HoLidAy 2]

HOLIDAYS 3

HOLIDAYS 2

[PEriod 3]

PERIOD 3

[PEriod 2]

PERIOD 2

[PEriod 3]

[PEriod 2]

PERIOD 3

PERIOD 2

SUB-SUB-SUB-MENUS

[HoLidAy 4]

HOLIDAYS 4

[PEriod 4]

PERIOD 4

[PEriod 4]

PERIOD 4

[HoLidAy 5]

HOLIDAYS 5

[PEriod 5]

PERIOD 5

[PEriod 5]

PERIOD 5

[HoLidAy 7]

HOLIDAYS 6

[PEriod 6]

PERIOD 6

[PEriod 6]

PERIOD 6

[HoLidAy 7]

HOLIDAYS 7

[PEriod 7]

PERIOD 7

[PEriod 7]

PERIOD 7

[HoLidAy 8]

HOLIDAYS 8

[PEriod 8]

PERIOD 8

[PEriod 8]

PERIOD 8

- - -

[HoLidAy15]

HOLIDAYS 15

[HoLidAy16]

HOLIDAYS 16

TATUS TEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURATION ALARMS ALARMS HISTORY

Menu tree structure

RUNTIMES

SUB-MENU:

Runtimes 1

SUB-MENU:

Runtimes 2

ALARMS HIST

Historic alarm code

1**

Historic alarm code

2**

ALARMS

Number of active

alarms/resets**

Active alarm code 1**

SUB-MENU:

Maintenance--

Historic alarm

code 3**

Historic alarm code

4**

Historic alarm code

Active alarm code 2**

Active alarm code 3**

Active alarm code 4**

5**

Historic alarm code

6**

Historic alarm code

Active alarm code 5**--

7**

Historic alarm code

8**

Historic alarm code

9**

Historic alarm code

10**--

CONFIG

SUB-MENU: User

Configuration (USEr)

SUB-MENU:

Service Configuration

OUTPUTS

Compressor status

circuit A

Compressor status

circuit B*

INPUTS

Contact 1: on/off/

heating/cooling

Contact 2: on/off/

heating/cooling

SETPOINTS

Cooling setpoint 1

Cooling setpoint 2

PRESSURES

Discharge pressure

circuit A

Suction pressure

circuit A

(SErviCE)

SUB-MENU:

Factory Configuration

(FACtorY)--

Two-speed fan

status circuit A

Two-speed fan

Contact 3: demand

limit/setpoint

selection

Contact 4: demand

Heating setpoint 1*

Heating setpoint 2*

Discharge pressure

circuit B*

Suction pressure

status circuit B*

Single-speed fan

status, crt A + B*

Water pump 1

limit selection*

Contact 5: setpoint

selection*

Contact 6: setpoint

Heating setpoint 3*

Auto changeover

circuit B*--

status*

Water pump 2

status*

Water heat

selection*

Safety loop status

Water pump

threshold (heating

mode)*

Auto changeover

threshold (cooling

mode)*

Setpoint demand

exchanger + air heat

exchanger heater

status, circuit A-Alarm circuits A and

operation contact

status*

Fault contact, com-

pressor, circuit A*

Fault contact, com-

limitation 1*

Setpoint demand

limitation 2*

Setpoint demand

B status

Boiler status*

pressor, circuit B*--

limitation 3*

Ramp loading*

Speed, fan A in %*

Speed, fan B in %*

Reversing valve,

circuit A*

Cooling - zero reset

threshold*

Cooling - full reset

threshold*

Cooling - full reset

value*

Reversing valve,

circuit B*

Status, heater

stages*

Local interface test

Heating - zero reset

threshold*

Heating - full reset

threshold*

Heating - full reset

value*

TEMP

Evaporator water

entering temp.

Evaporator water

STATUS

Default display

Mode

ITEM

leaving temp.

Outdoor tempera-

ture

Chiller occupied

mode*

Saturated discharge

temperature circuit

Saturated suction

temp. circuit A

Saturated discharge

Minutes left

Cooling/heating

selection*

Cooling/heating

temperature circuit

Saturated suction

temp. circuit B*

Defrost temperature,

status*

Unit capacity in%Capacity circuit

circuit A*

A in %*

Defrost temperature,

circuit B*

System water

temperature*--

Capacity circuit

B in %*

Heater stages in

Present demand

limit in %

Present lag limit

in %*

Setpoint in local

control*

Setpoint

occupied mode*

Active setpoint

Control point

Controlled water

temperature

Legend

* Displayed if the configuration requires it

** Displayed if the alarm exists

- Not in use

4.3.5 - Description of the Information menu

INFORMATION MENU (3) ITEM FORMAT UNITS

±nn.n °C

LOFF L-On L-Sc CCn rEM MASt -

OFF rEADY dELAY -

StOPPing running triPout OvErridE dEFrOSt -

OCCUPIEd UNOCCUPIEd -

COOL HEAT StAndbY BotH -

ALArM ALErt -

MAStEr SLAvE -

1 [1] nn

2 [2] -

occu unoc Forc

3 nn.n minutes

4 [2] -

HEAt COOL Auto -

5 [2]

HEAt COOL StbY both -

Forc 6 nnn % 7 nnn % 8 [2] nnn % 9 [2] nnn % 10 nnn

Forc % 11 [2] nnn % 12 [2] -

SP-1

SP-2

SP-3

AUtO 13 [2] -

occu

unoc

Forc

DESCRIPTION Automatic display mode. It cycles through the following displays:

1: Controlled water temperature: temperature of the water that the unit tries to maintain at the control point.

2: Unit operating type

Local Off Local On Local On - based on unit clock. Displayed if the CCN/clock board is installed. CCN Control. Displayed if the CCN/clock board is installed. Remote Control Master unit

3: Unit status

Off: Unit is stopped and not authorised to start. Ready: Unit is authorised to start Delay: Unit is in delay at start-up. This delay is active after the unit has been switched on. The delay can be configured in the User Configuration menu. Stopping: Unit is currently stopping. On: Unit is running or authorised to start. Fault shutdown. Limit: The operating conditions do not allo w total unit operation. Defrost: One circuit is in defrost mode.

4. Unit occupied/unoccupied status

Occupied: Unit in occupied mode Unoccupied: Unit in unoccupied mode

5. Heating/cooling operating mode

Cooling: Unit operates in cooling mode Heating: Unit operates in heating mode Standby: Unit is in auto cooling/heating changeover mode, and is in standby Both: The unit operates in cooling (compressors) and heating (boiler). Only with HSM operation.

6: Alarm mode

Alarm: Unit is totally stopped because of failure. Alert: Unit is in failure but not completely stopped.

7: Master/Slave status

Master: The master/slave control is active and the unit is the master Slave: The master/slave control is active and the unit is the slave

Active mode codes. Each active mode is displayed in turn. This Item is masked when nil. Pressing the enter button when a mode code is displayed causes a character text expansion to be scrolled accross the four-digit display. See the description in the following table

This item indicates the current unit occupied/unoccupied mode. Displayed if the CCN/clock board is installed. Occupied Unoccupied The value is displayed in turn with 'Forc' when the unit is in CCN control and if this variable if forced through CCN.

Start-up delay. This item indicates the minutes left before the unit can be started. This delay at start-up is alw ays active after the unit has been switched on. The delay can be configured in the User Configuration 1 menu.

Heating/cooling on selection: This item is accessible in read/write, if the unit is in local control mode. It is only displayed, if the unit is in LOFF, L-On or L-Sc operating type. Display ed for heat pumps or if the unit controls a boiler. Heating mode selection Cooling mode selection Automatic heating/cooling mode changeover selection. Only displayed if the auto changeover function is selected (User Configuration 1 menu).

Heating/cooling mode. This item indicates whether the unit is in cooling or heating. Displayed if the unit controls a boiler. Heating Cooling Standby: Unit is in auto cooling/heating changeover mode, and is in standby. Both: The unit operates in cooling (compressors) and heating (boiler). Only with HSM operation. The value is displayed in turn with 'Forc' when the unit is in CCN control and if this variable if forced through CCN.

Total active capacity of unit. It is the percentage of compressor capacity used by the unit. Total active cap acity of circuit A. It is the percentage of compressor capacity used by on circuit A.. Total active capacity of circuit B. It is the percentage of compressor capacity used by on circuit B. Dual-circuit units only. Active electric heating stages. Only displayed for heat pumps and if the unit controls additional electric heating stages. Present demand limit. This is the authorised operating capacity of the unit. See section 5.7.

The value is displayed in turn with 'Forc' when the unit is in CCN control and if this variable if forced through CCN.

Present lag chiller demand limit. Displayed when the master/slave control is selected. Setpoint select in local mode. This point is read/write accessible. Displayed only when the unit is LOFF, L-On or L-Sc operating type.

SP-1 = cooling/heating setpoint 1 SP-2 = cooling/heating setpoint 2 SP-3 = heating setpoint 3 AUtO = active setpoint depends on schedule 2 (setpoint selection schedule). See section 5.6.1 & 4.3.11.6.

Setpoint occupied mode. Displayed if the CCN/clock board is installed. Occupied: cooling setpoint 1 is active Unoccupied: cooling setpoint 2 is active The value shall be displayed in turn with 'Forc' when the unit is in CCN control and if this variable if forced through CCN.

INFORMATION MENU (3) continued ITEM FORMAT UNITS

14 ±nn.n °C

15 ±nn.n

Forc °C

16 ±nn.n °C

1 This item is masked when nil. 2 This item is displayed in certain unit configurations only. 3 Access to this menu is read-only except for item 10 that can be forced when the unit is in Local operating type.

DESCRIPTION OF OPERATING MODES (ITEM 1 OF THE INFORMATION MENU) MODE # MODE NAME

1 Delay at start-up active

2 2nd cooling/heating setpoint active 3 3rd heating setpoint active 4 Setpoint reset active 5 Auto heating/cooling changeover

active 6 Demand limit active 7 Ramp loading active

8 Water or air heat exchanger

heater active 9 Evaporator pump reversal in effect 10 Evaporator pump periodic start

11 Night condensing mode

12, 13 Low suction temperature protection

14, 15 High pressure protection

16, 17 Defrost

18 Low water entering temperature

protection in heating mode 19, 20 Hot gas protection in heating mode

21, 22 Low suction temperature protection

in heating mode 23 Boiler active 24 Electric heating stages active 25 Unit in SM control 26 Master/slave link active 27 Low outside temperature protection

DESCRIPTION Active setpoint. This is the current cooling/heating setpoint: it refers to cooling setpoint 1 or cooling/heating setpoint 2. See section

5.6.1. Control point. This is the setpoint used by the controller to adjust the temperature of the leaving or entering w ater (according to

configuration). Control point = active setpoint + reset. See section 5.6 The value is displayed in turn with 'Forc' when the unit is in CCN control and if this variable if forced through CCN.

Controlled water temperature. Water temperature that the unit tries to maintain at the control point.

DESCRIPTION

The delay at start-up operates after the unit has been switched on. If the delay has not expired, the mode is active. The delay is configured in the User Configuration 1 menu.

The second cooling/heating setpoint is active. See section 5.6.1 The third heating setpoint is active. See section 5.6.1 In this mode, the unit uses the reset function to adjust the leaving water temperature setpoint. See section 5.6. If the unit is in auto mode, the heating/cooling changeover is automatic, based on the outdoor temperature. See

section 5.2. In this mode, the demand at which the unit is authorised to operate is limited. See section 5.7. Ramp loading is active. In this mode, the rate of water temperature drop or rise (heating mode) in °C/min is limited

to a preset value in order to prevent compressor overloading. Ramp function must be configured (see User Configuration 1 menu). Ramp values can be modified (see Setpoint menu).

The water or air heat exchanger heater is active. See section 5.5.

The unit is fitted with two evapor ator water pumps and reversal between pumps is in effect. See section 5.3. The unit is stopped and the pump is started each day at 14.00 p.m. for two seconds. This function needs to be

configured in the User Configuration 1 menu. See section 5.3 & 4.3.11.3. The night mode is active. Fan runs at low speed (if permitted by operating conditions) and unit capacity can be

limited. See section 5.8 & 4.3.11.3. 12 = circuit A & 13 = circuit B. Protection f or evaporator low suction temperature circuit is active. In this mode,

circuit capacity is not authorised to rise and the circuit can be unloaded. 14 = circuit A & 15 = circuit B. The unit is in cooling or heating mode. The circuit is in high pressure protection

mode because the HP protection threshold has been exceeded. Circuit has been unloaded and the circuit capacity is not authorised to rise.

16 = circuit A & 17 = circuit B. The unit is in heating mode, and the defrost sequence is active on the relevant circuit.

The unit is in heating mode and compressor start is not authorised, as the entering water temperature is below 10°C.

19 = circuit A & 20 = circuit B. The unit is in heating protection mode and hot gas discharge protection is active. In this mode, the circuit capacity cannot increase, and the circuit may be unloaded or go into defrost mode.

21 = circuit A & 22 = circuit B. The unit is in heating mode and low suction temperature protection is active. In this mode, circuit capacity is not authorised to rise and the circuit can be unloaded or go into defrost mode.

The unit controls a boiler and this is operating. See section 5.13. The unit controls additional electric heating stages, and these are operating. See section 5.12. Unit is in control of a System Manager (FSM, CSM III or HSM). Unit is connected to a secondary unit by a master slave link and the master/slave modes are active. The unit is in heating mode, and compressor start-up is not permitted, when the outside air temperature is lower

than the value configured in item 12 of the User 1 configuration menu. See the relevant section.

4.3.6 - Description of the Temperatures menu

4.3.7 - Description of the Pressures menu

TEMPERATURES MENU [2] ITEM FORMAT UNITS COMMENTS

0 ±nn.n °C Water heat exchanger entering water tempera-

1 ±nn.n °C Water heat exchanger leaving water tempera-

2 ±nn.n °C Outdoor temperature 3 ±nn.n °C Saturated discharge temperature, circuit A 4 ±nn.n °C Saturated suction temperature, circuit A 5 [1] ±nn.n °C Saturated discharge temperature, circuit B 6 [1] ±nn.n °C Saturated suction temperature, circuit B 7 [1] ±nn.n °C Defrost temperature, circuit A 8 [1] ±nn.n °C Defrost temperature, circuit B 9 [1] ±nn.n °C Chilled water system temperature. Used for

1 This item is displayed in certain unit configurations only 2 Access to this menu is read-only.

ture

master/slave control.

4.3.8 - Description of the Setpoints menu

SETPOINTS MENU [2] ITEM FORMAT UNITS RANGE

0 ±nn.n °C See table below 1 ±nn.n °C See table below 2 nnn °C See table below 3 [1] nnn °C See table below 4 [1] nn.n °C See table below 5 [1] ±nn.n °C 3.8 to 50

6 [1] ±nn.n °C 0 to 46

7 nnn % 0 to 100

8 [1] nnn % 0 to 100

9 [1] nnn % 0 to 100

10 ±nn.n °C/min 0.1 to 1.1

11 [1] ±nn.n °C See table below 12 [1] ±nn.n °C See table below 13 [1] ±nn.n °C See table below 14 [1] ±nn.n °C See table below 15 [1] ±nn.n °C See table below 16 [1] ±nn.n °C -16 to 16

COMMENTS

This item lets you display and modify Cooling setpoint 1* This item lets you display and modify Cooling setpoint 2* This item lets you display and modify Heating setpoint 1*, only display ed for heat pumps. This item lets you display and modify Heating setpoint 2*, only display ed for heat pumps. This item lets you display and modify Heating setpoint 3*, only display ed for heat pumps. Automatic changeover threshold, cooling mode. This item lets you display and modify the outdoor

temperature threshold at which the unit changes over in cooling mode. See section 5.2. Displayed only if the auto cooling/heating changeover function is selected.

Automatic changeover threshold, heating mode. This item lets you display and modify the outdoor temperature threshold at which the unit changes over in heating mode. Displayed only if the auto cooling/ heating changeover function is selected and if the unit is a heat pump. The heating threshold must be

3.8°C below the cooling threshold, otherwise the new setpoint will be rejected. Demand limit 1 setpoint. Limitation by volt-free contact. This item is used to define the maximum

capacity that the unit is authorised to use, if the demand limit contact(s) activate limit 1. Contact control depends on the unit type and configuration. See sections 3.6.4 and 3.6.5.

Demand limit 2 setpoint. Limitation by volt-free contact. This item is used to define the maximum capacity that the unit is authorised to use, if the demand limit contact(s) activate limit 2. Contact control depends on the unit type and configuration. Displayed and used only for dual-circuit units. See section

3.6.5 for the contact control description. Demand limit 3 setpoint. Limitation by volt-free contact. This item is used to define the maximum

capacity that the unit is authorised to use, if the demand limit contact(s) activate limit 3. Displayed and used only for dual-circuit units. See section 3.6.5 for the contact control description.

Cooling or heating ramp loading rate. This parameter is only accessible if the ramp function is validated in the User Configuration 1 menu. This item refers to the rates of temperature drop in °C in the evaporator. When capacity loading is effectively limited by the ramp, mode 7 is active.

Zero reset threshold, cooling mode** Full reset threshold, cooling mode** Full reset value, cooling mode** Zero reset threshold, heating mode** Full reset threshold, heating mode** Full reset value, heating mode**

PRESSURES MENU [2] ITEM FORMAT UNITS COMMENTS

0 nnnn kPa Discharge pressure, circuit A .

Relative pressure.

1 nnn kPa Suction pressure, circuit A.

Relative pressure.

2 [1] nnnn kPa Discharge pressure, circuit B.

Relative pressure.

3 [1] nnn kPa Suction pressure, circuit B.

Relative pressure.

1 This item is displayed in certain unit configurations only. 2 Access to this menu is read-only

1 This item is displayed in certain unit configurations only. 2 All points contained in this table can be modified. * Those setpoints can be used for entering or leaving water temperature control. By default the unit controls the evaporator entering fluid temperature.

Leaving fluid temperature control requires a parameter modification in the Service Configuration menu.

** These parameters are only accessible when reset based on OAT or delta T has been selected in the User Configuration 1 menu. See section 4.3.11.3 & 5.6.2.

LEAVING WATER TEMPERATURE CONTROL SETPOINT - °C R-22/R-407C

Minimum cooling value

Water 5.0 Medium brine 0.0

Brine -10.0 Maximum cooling value 20.0 Feedback setpoint, cooling 6.0 Minimum heating value 20.6 Maximum heating value 56.1 Feedback setpoint heating 48.0

ENTERING WATER TEMPERATURE CONTROL SETPOINT - °C R-22/R-407C

Minimum cooling value

Water 10.0

Medium brine 6.1

Brine -3.9 Maximum cooling value 26.1 Feedback setpoint, cooling 12.0 Minimum heating value 14.4 Maximum heating value 50.0 Feedback setpoint heating 42.0

4.3.9 - Description of the Inputs menu

INPUTS MENU [2] ITEM FORMAT UNITS

0 oPEn/CLoS -

COMMENTS Remote contact 1 status.

If the auto cooling/heating changeover function is not selected (User Configuration 1), this contact is used to start and stop the unit. If the auto cooling/heating changeover function is selected, this contact is multiplexed with contact 2 to permit starting and stopping the unit and the selection of heating/cooling/auto. This contact is only v alid, if the unit is in the remote operating control (rEM) mode. See section 3.6 for the description of the connections of this contact.

RESET THRESHOLDS IN COOLING OR HEATING MODE Reset threshold Zero Full Reset based on outdoor -10 to 51 °C -10 to 51 °C

air temperature Reset based on 0 to 11.1 °C 0 to 11.1 °C

Delta T

1 [1] oPEn/CLoS -

2 oPEn/CLoS -

3 oPEn/CLoS -

4 [1] oPEn/CLoS -

5 [1] oPEn/CLoS -

6 [1] oPEn/CLoS -

7 oPEn/CLoS -

8 [1] b1b2b 9 [1] b1b2b

1 This item is displayed in certain unit configurations only 2 Access to this menu is read-only.

Remote contact 2 status.

If the auto cooling/heating changeover function is not selected (User Configuration 1), this contact is used to select the heating or cooling mode. If the auto cooling/heating changeover function is selected, this contact is multiplexed with contact 1 to permit starting and stopping the unit and the selection of heating/cooling/auto. This contact is only valid, if the unit is in the remote operating control (rEM) mode. See section 3.6 for the description of the connections of this contact.

Remote contact 3 status.

The operation of this contact depends on the unit type. Single-circuit unit: this contact can be used either to limit unit demand or to select a setpoint, as described in User Configuration. If this contact is used for selecting a setpoint it is only active if the unit is in the remote operating control mode. If the contact is used to limit the demand of the unit, it is active in all operating types. Open contact: unit capacity is not limited or unit control is based on setpoint 1. Closed contact: unit capacity is limited at limit setpoint 1 or unit control is based on setpoint 2. See section 4.3.11.3 for the configuration of contact 3 - section 5.6.1 for the description of the setpoint selection section 5.7 for the description of the demand limit function and 3.6 for the description of the connection of contact 3 for single-circuit units. Dual-circuit units: this contact is multiplexed with contact 4 to permit the selection of a demand limit point. This contact is active in all operating types. See section 3.6.5 for the description of this contact and section 5.7 for the description of the demand limit function.

Remote contact 4 status.

This contact is only used for dual-circuit units: this contact is multiplexed with contact 3 to permit selection of a demand limit value. This contact is active in all operating types. See section 3.6.5 f or the description of this contact and section 5.7 for the description of the demand limit function.

Remote contact 5 status.

This contact is only used for dual-circuit units: this contact is multiplexed with contact 6 to permit selection of a setpoint. This contact is only active in the remote operating control mode. See section 3.6.6 for the description of this contact and section 5.6.1 for the description of the setpoint selection function.

Remote contact 6 status.

This contact is only used for dual-circuit units: this contact is multiplexed with contact 5 to permit selection of a setpoint. This contact is only active in the remote operating control mode. See section 3.6.6 for the description of this contact and section 5.6.1 for the description of the setpoint selection function.

Interlock status. When this contact opens the unit stops or is prevented from starting and an alarm is created. This contact is used to control the water flow . In addition, a customer safety device can be connected in series with this contact (see section 3.6).

Water pump run contact status. When this contact opens while an evaporator pump has received a command to be on then a pump failure alarm is tripped.

Compressor feedback contacts, circuit A b1 = feedback A1 b2 = feedback A2 b3 = feedback A3 Compressor feedback contacts, circuit B b1 = feedback B1 b2 = feedback B2 b3 = feedback B3

4.3.10 - Description of the Outputs/Tests menu

4.3.10.1 - General

This menu displays the status of the controller outputs. Moreover, when the machine is fully stopped (LOFF) the outputs can be activated for manual or automatic tests (the access to the tests is password controlled).

4.3.10.2 - Menu description

OUTPUTS STATUS & TESTS MENU [2] [3] ITEM FORMAT UNITS

1 [1] b1b2b

2 StoP

3 [1] StoP

4 [1] b

5 [1] On

6 [1] On

7On

9 [1] On

10 [1] nnn

11 [1] nnn

12 [1] b

1b2b3

tESt FAIL Good -

LOW HIGH tESt -

1b2

OFF tESt FAIL Good Forc -

OFF tESt -

1b2

tESt -

OFF tESt -

tESt %

1b2

tESt

DESCRIPTION Circuit A compressors, command status

= compressor A1

b2 = compressor A2

b3 = compressor A3 In test mode, the Arrow buttons display 001, 010 and 100 in succession, so as to force the status of the compressor outputs in turn. During the test phase, power to the compressor is s witched on for 10 seconds only. It is then not possible to restart the compressor for a further 30 seconds. When the test is completed the following is displayed:

- Fail: displayed if the test has failed because the compressor was not started or run in reverse rotation.

- Good: displayed if test was successful

Circuit B compressor, dual-circuit unit s only

= compressor B1

b2 = compressor B2

b3 = compressor B3 In test mode... as above

Two-speed fan status, circuit A

Stop = fan is stopped

Low = fan is in low speed

High = fan is in high speed

Two-speed fan status, circuit B

Stop = fan is stopped

Low = fan is in low speed

High = fan is in high speed

Single-speed fan status

= fan A2

b2 = fan B2 Only for dual-circuit units

Evaporator water pump #1 command status. Not displayed if the unit does not control a pump.

On: pump is running

Stop: pump is stopped

Forc: this item is displayed only when the unit is stopped locally (LOFF). selecting this item authorises turning on the

pump with no delay and for an unlimited length of time. The pump will remain on until any button of the user interface is

pressed: it is then immediately stopped. If the unit is in CCN control, then the pump status is displayed in turn with "Forc"

if the pump status if forced through CCN. During the test phase, power to the pump is switched on for 10 seconds only. When the test is completed the f ollowing is displayed:

- Fail: displayed if the test has failed because the pump was not started

- Good: displayed if the test was successful Evaporator water pump #2 command status. Not displayed if the unit does not control a secondary pump.

On: pump is running

Stop: pump is stopped

Forc: this item is displayed only when the unit is stopped locally (LOFF). selecting this item authorises turning on the pump with no delay and for an unlimited length of time. The pump will remain on until any button of the user interface is pressed: it is then immediately stopped. If the unit is in CCN control, then the pump status is displayed in turn with "Forc" if the pump status if forced through CCN.

During the test phase, ...as above

Water or air heat exchanger heater command status

See sections 5.5 and 5.11

Alarm output command status

b1 = alarm circuit A b2 = alarm circuit B

In test mode, the Arrow buttons display 01 and 10 in succession, so as to force each alarm output status in turn.

Boiler command status. Displa yed if the unit controls a boiler. See section 5.13.

Variable fan speed, circuit A. Displayed if the unit controls a variable-speed fan.

Variable fan speed, circuit B. Dual-circuits only and if the unit controls a variable-speed fan.

4-way reversing cycle valve status. In test mode, the arrow keys successively display 01 and 10, in order to authorise the

test for each valve in turn. b1 = valve circuit A b2 = valve circuit B This item is only displayed for heat pump units.

OUTPUTS STATUS & TESTS MENU [2] [3] continued ITEM FORMA T UNITS

13 [1] b

14 [1] YES -

15 Auto tESt -

1 This item is displayed in certain unit configurations only. 2 Testing authorised only if the unit is in Local Off and all compressors are off. 3 Password needed only for testing. “Test” Displayed in turn with the item value during tests.

1b2b3b4

tESt

no tESt %

DESCRIPTION Additional heating stage status.

= stage 1

b2 = stage 2 b3 = stage 3 b4 = stage 4 In test mode the arrow keys successively display 0001, 0010, 0100 and 1000 to force the status of each electric heating stage in turn. This item is only displayed for heat pump units controlling additional electric heater stages. See section 5.12.

Used for local interface test only . Lights or flashes all LEDs and blocks, so as to check that they are working properly .

Automatic test. Selecting this item activates the automatic test function.

4.3.10.3 - Manual tests

This 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 4digit display alternately with the value tested. The Outputs/Test LED stops flashing. Press the Enter key or an arrow key to stop the test.

4.3.10.4 - Automatic tests

The automatic test function verifies the integrity of the analogue entries and activates the outputs in sequence. For each test 't XX' is displayed on the user interface. 'xx' indicates the number of the test in progress. When a test has been completed , the following test is automatically activated.

A message may appear, asking the operator for a validation with the Enter key, if the control cannot automatically verify a sensor value or an output status. If the value read or the output status is incorrect, the operator must press a different key (not the Enter key) to cancel the automatic test procedure.

If a test fails, an error message and an error code are displayed. The automatic test procedure is interrupted.

When all tests have been completed, an end-of-test message appears.

The table below describes the messages shown on the user interface during the automatic test sequence.

TEXT DESCRIPTION

Thermistor test failed [XX] Test number XX of the thermistor has failed Pressure test failed [XX] Test number XX of the pressure sensor has

failed Output test failed [XX] Output test number XX has failed Input test failed [XX] Input test number XX has failed Press enter if test [XX] correct Request for the operator to validate test XX OAT [value] press enter if Request for the operator to validate the

test [XX] correct outdoor air temperature value displayed.

T est number XX Auto test completed Automatic test completed

The table below describes the different sequences of the automatic test.

TEST NUMBER

0 1 2 3 4 5, 6 7, 8, 9 10, 11 12, 13, 14 15, 16, 17 18 19, 20, 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

DESCRIPTION Outdoor temperature sensor test Pressure sensor test - circuit A Pressure sensor test - circuit B (dual-circuit units only) Defrost sensor test - circuit A (heat pumps only) Defrost sensor test - circuit B (dual-circuit heat pumps only) Water flow switch test and primary pump test Entering and leaving water temperature sensor test Water system temperature sensor test (for master/slav e units equipped with this sensor only) Water flow switch test and secondary pump test (for units equipped with a secondary pump only) Test compressor A1, A2 (if applicable) , A3 (if applicable) 4-way reversing valve test, circuit A (heat pumps only) Test compressor B1 (if applicab le), B2 (if applicable), B3 (if applicab le ) 4-way reversing valve test, circuit B (dual-circuit heat pumps only) Low-speed test, fan A1 (units not equipped with Varifan) High-speed test, fan A1 (units not equipped with Varifan) Low-speed test, fan A 2 (dual-circuit units not equipped with Varif an) High-speed test, fan A2 (dual-circuit units not equipped with Varifan) Fixed-speed test, fan A2 (f or circuits equipped with a second f an) Fixed-speed test, fan B2 (for circuits equipped with a second fan) Water and air heat exchanger heater test Not used Boiler output activation (if unit controls a boiler) Additional electric heating stage 1 activation (if unit controls electric heating stages) Additional electric heating stage 2 activation (if unit controls electric heating stages) Additional electric heating stage 3 activation (if unit controls electric heating stages) Additional electric heating stage 4 activation (if unit controls electric heating stages) Alarm output A activation Alarm output B activation Automatic test completed

CONFIRMATION

yes no no no no no no no no no no no no yes yes yes yes yes yes yes

yes yes yes yes yes yes yes

The table below describes the faults that can be displayed during the automatic test.

TEST FAULT

1 2

3 4 5 6

7 8

9 10

11, 12, 13; 14, 15 16, 17, 18, 19, 20

22, 23; 24, 25, 26

31 32 33

34 35

36 37

38 39

40 41 42 43 44

45 46

47 48

49 50 51

52 53

DESCRIPTION

Outdoor air thermistor outside range Outdoor air value read not validated by operator

Low pressure transducer, circuit A, outside range High pressure transducer, circuit A, outside range Low pressure transducer, circuit B, outside r ange High pressure transducer, circuit B, outside range

Defrost thermistor, circuit A, outside range Defrost thermistor, circuit B, outside range

Water flow switch not open Primary pump not started or water flow switch not

closed Water entering temperature sensor outside range

Water leaving temperature sensor outside range T emperature diff erence between entering and leaving

water sensors too high Water system leaving temperature sensor outside

range T emperature diff erence between the system entering

and leaving water sensors too high Water flow switch not closed or primary pump not

stopped Secondary pump not started or water flow switch not

closed Water flow switch not closed or secondary pump not

stopped Command fault; compressor A1

Command fault; compressor A2 Command fault; compressor A3

Command fault, 4-way reversing valve, circuit A Command fault; compressor B1

Command fault; compressor B2 Command fault; compressor B3

Command fault, 4-way reversing valve, circuit B Low-speed test, fan A1 not validated by the operator

High-speed test, fan A1 not validated by the operator Low-speed test, fan B1 not validated by the operator High-speed test, fan B1 not validated by the operator Test fan A2 not validated by the operator Test fan B2 not validated by the operator

Water heat exchanger heater and air heat exchanger condensate heater test, circuit A not validated by the operator Air heat exchanger condensate heater, circuit B, not validated by the operator

Boiler activation test not validated by the operator Electric heating stage 1 activation test not validated

by the operator Electric heating stage 2 activation test not validated by the operator Electric heating stage 3 activation test not validated by the operator Electric heating stage 4 activation test not validated by the operator

Alarm relay output activation test, circuit A not validated by the operator Alarm relay output activation test, circuit B not validated by the operator

4.3.11- Description of the configuration menu

4.3.11.1- General

This menu can be used to display and modify all configurations: Factory, Service and User. Only the User Configuration 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 11 of the User 2 menu (password for all configurations) has been validated.

4.3.11.2 - Password

A 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 deactivates the password after 5 minutes without activity (i.e. no buttons pressed) or after powering up.

SUB-MENU USER CONFIGURATION

USER 1

ITEM

[USER1]

Return to previous menu

Ramp selection*

Start-up delay*

Water pump selection

Water pump changover

delay* Pump shutdown in

standby mode Control contact 3

selection* Setpoint reset selection,

cooling mode Setpoint reset selection,

heating mode* Boiler selection

Boiler operation

threshold* Operating threshold,

heating mode* Electric heating stage

operation threshold* Electric heating safety

stage threshold* Electric heating stage

operation schedule* Quick start-up, electric

heater stages in defrost mode* Automatic heating/cooling

changeover selection Extended display

selection

USER 2 [USER2]

Return to previous menu Periodic pump startup Night mode - start hour Night mode - end hour Night mode demand limit Night mode min. demand Alarm relay selection

Number clock 1

Number clock 2

CCN element number CCN bus number

Password for all user configurations

Software version number

* only displayed if configuration requires.

DATE [dAtE]*

Return to previous menu Hour*

Day of the week*

Day and month*

Year*

SCHEDULE 1 [ScHEduLE 1MEnu]*

Return to previous menu

SUB-MENU: Period 1 [PErIod 1] SUB-MENU: Period 2 [PErIod 2] SUB-MENU: Period 3 [PErIod 3] SUB-MENU: Period 4 [PErIod 4] SUB-MENU: Period 5 [PErIod 5] SUB-MENU: Period 6 [PErIod 6] SUB-MENU: Period 7 [PErIod 7] SUB-MENU: Period 8 [PErIod 8]

SCHEDULE 2 [ScHEduLE 2 MEnu]*

Return to previous menu SUB-MENU: Period 1 [PErIod 1] SUB-MENU: Period 2 [PErIod 2] SUB-MENU: Period 3 [PErIod 3] SUB-MENU: Period 4 [PErIod 4] SUB-MENU: Period 5 [PErIod 5] SUB-MENU: Period 6 [PErIod 6] SUB-MENU: Period 7 [PErIod 7] SUB-MENU: Period 8 [PErIod 8]

HOLIDAYS [HOLidAy MEnu]*

Return to previous menu

SUB-MENU: Holidays 1 [HOLidAy 1] SUB-MENU: Holidays 2 [HOLidAy 2] SUB-MENU: Holidays 3 [HOLidAy 3] SUB-MENU: Holidays 4 [HOLidAy 4] SUB-MENU: Holidays 5 [HOLidAy 5] SUB-MENU: Holidays 6 [HOLidAy 6] SUB-MENU: Holidays 7 [HOLidAy 7] SUB-MENU: Holidays 8 [HOLidAy 8] SUB-MENU: Holidays 9 [HOLidAy 9] SUB-MENU: Holidays 10 [HOLidAy 10] SUB-MENU: Holidays 11 [HOLidAy 11] SUB-MENU: Holidays 12 [HOLidAy 12] SUB-MENU: Holidays 13 [HOLidAy 13] SUB-MENU: Holidays 14 [HOLidAy 14] SUB-MENU: Holidays 14 [HOLidAy 14] SUB-MENU: Holidays 16 [HOLidAy 16]

BROADCAST [BrodCASt]*

Return to previous menu

Broadcast acknowledger selection Broadcast activation

Outdoor temperature broadcast bus Outdoor temperature broadcast element Start month daylight saving time Start day daylight saving time Start hour daylight saving time Minutes to add

End month daylight saving time End day daylight saving time End hour daylight saving time Minutes to subtract

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

CONFIGURATION

USER [USEr]

USER1 [USEr 1]

USER2 [USEr 2]

SCHEDULE 1 [SCHEduLE 1]*

PERIOD 1

PERIOD 2

PERIOD 3

PERIOD 4

PERIOD 5

PERIOD 6

PERIOD 7

PERIOD 8

SCHEDULE 2 [SCHEduLE 2]*

PERIOD 1

PERIOD 2

PERIOD 3

PERIOD 4

PERIOD 5

PERIOD 6

PERIOD 7

PERIOD 8

HOLIDAYS [HOLIDAYS]*

HOLIDAY 1

HOLIDAY 2

HOLIDAY 3

HOLIDAY 4

HOLIDAY 5

HOLIDAY 6

HOLIDAY 7

HOLIDAY 8

...

HOUR + DATE [dAtE]*

BROADCAST [broAdCASE]*

SUB-MENU PERIOD CONFIGURATION* Item PERIOD 1 to 8

[PEriod X MEnu]*

0 Return to previous menu 1 Start of occupied period 2 End of occupied period 3 Selection Monday 4 Selection Tuesday 5 Selection Wednesday 6 Selection Thursday 7 Selection Friday 8 Selection Saturday 9 Selection Sunday 10 Selection holidays

SUB-MENU HOLIDAY CONFIGURATION* Item HOLIDAYS 1 to 16

[HoLidAy X MEnu]*

0 Return to previous menu 1 Start month holidays 3 Start day holidays 4 Number of days, holidays

* only displayed if configuration requires.

...

HOLIDAY 15

HOLIDAY 16

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

4.3.11.3 - Description of the User 1 Configuration sub-menu

USER 1 CONFIGURATION SUB-MENU [2]

ITEM FORMAT UNITS DEFAULT COMMENTS

0 USEr MEnu - - When selected this item authorises return to the previous menu. 2 [1] YES/no - no Ramp loading select. For units with more than one compressor only.

3 1 to 15 min 1 Delay at start-up. This value is reinitialised after power-up or when both circuits are halted by local, remote or

4 0/1/2/3/4 - 0 Pump sequence select

Yes = ramp enabled No = ramp disabled This configuration enables the ramp to be activated for heating or cooling (depending on configuration): the maximum rate (in °C/min) of temperature drop or rise for the heat exchanger water (leaving or entering, upon configuration). Ramp setting value can be configured in the Setpoint menu.

CCN command. No compressor will be started up until this pause has expired. However, the ev aporator pump command will be activated immediately . The safety lockout loop will not be checked until the pause has expired.

0 = no pump 1 = one pump only 2 = two pumps with auto rotation 3 = pump #1 manual select 4 = pump #2 manual select If the auto sequence is selected, the pump change-over occurs when the rotation delay is elapsed. If the manual sequence is selected then, the selected pump is used in priority. Change-over occurs if one pump fails.

5 [1] 24 to 3000 hours 48 Pump changeover delay. Displayed if auto pump sequence is selected. This parameter is used for pump

6 [1] «YES/no» - noi Pump shutdown in standby mode

7 [1] 0/1 - 0 Contact 3 select (for single-circuit units)

8 0/1/2 - 0 Cooling setpoint reset select. See section 5.6.2.

9 [1] 0/1/2 - 0 Heating setpoint reset select. See section 5.6.2

10 «YES/no» - no Boiler control select

11 [1] -15 to 0 °C -10 Boiler threshold. Outdoor air temperature limit; if the temperature is lower, the heat pump is stopped or only

12 [1] -20 to 0 °C -15 Operating threshold, heating mode. Outside air temperature threshold below which the heat pump shuts

13 [1] -5 to 21 °C 5 Electric heating stage threshold. Maximum outdoor air temperature threshold for the use of electric heating

14 [1] «YES/no» - no Electric heating safety stage. In this configuration the last electric heating stage is only activated in the safety

15 [1] 0 to 60 minutes Electric heating stage operation schedule. Permits configuration of a start-up delay after unit start-up during

16 [1] «YES/no» - no Quick start-up, electric heater stages in defrost mode. If a circuit switches to defrost mode, the electric

17 [1] «YES/no» - no Automatic cooling/heating changeover select. P ermits activation of the automatic changeo ver function.

18 «YES/no» - yes Extended menu select

1 This item shall be masked when not used. 2 Access to menu is read/write.

auto-rotation: the control tries to limit the pump run time difference to the pump changeover delay v alue. Change-over between pumps occurs when this difference becomes greater than the configured pump changeover delay.

Displayed if the unit controls a water pump. If this parameter is validated, the pump will be shut down when the standby mode is active (in automatic heating/cooling changeover). It automatically restarts in heating or cooling mode.

0 = input is used for demand limit command control 1 = input is used for dual setpoint command control Determines whether contact 3 is used for remote demand limit or dual setpoint control. For single-circuit units only.

0 = reset not selected 1 = reset based on outdoor temperature 2 = reset based on return water temperature

Yes = boiler controlled by the unit No = boiler not controlled

the boiler is used for hot water production. Only for heat pumps controlling an additional boiler.

down. The unit switches the electric heaters on and off (if these e xist). For heat pumps only.

stages. Only for heat pumps, equipped with optional additional electric heating stages.

mode (in case of a unit fault that prevents unit operation in heat pump mode). The other electric heating stages operate normally . See section 5.12.

which the electric heater stages are not allowed to start.

heater stages are allowed to start up immediately. For heat pumps only.

Caution: This function requires a special operation f or control contacts 1 and 2, if the machine is under remote control (see section 3.6.3).

Yes = menu description available No = menu description not available This item authorises activating or inhibiting the menu item expanded display.

4.3.11.4 - Description of the User 2 Configuration sub-menu

USER 1 CONFIGURATION SUB-MENU ITEM FORMAT UNITS DEFAULT COMMENTS

0 USEr 2 Menu When selected this item authorises return to the previous menu. 1 «YES/no» - no Periodic pump quick-start of the water pump(s)

3 [1] n

4 «YES/no» - no Night mode demand limit value. This item permits demand limitation in the night control mode. In this case, if

5 0 to 100 % 0 Night mode demand limit. The unit capacity is never reduced below this capacity in night control mode. 6 0/1/2 - 0 Alarm relay selection

7 0 or 65 to 99 - 0 Schedule 1 clock number (for unit on/off schedule, see section 4.3.11.6).

8 0 or 65 to 99 - 0 Schedule 2 clock number (schedule for setpoint selection, see section 4.3.11.6).

9 1 to 239 - 1 CCN element address.

10 0 to 239 - 0 CCN bus number .

11 «YES/no» - no Password for all User Configurations

12 nn.n - - Software version number

n3n4: minutes (00 to 59). Continuous pressing of the Enter key again causes the last two characters to flash so that minutes can be adjusted.

1n2n3 n4

00:00 to 23:59 - 00:00 Authorises entering the time of day at which the night control mode starts. During this period the fan runs at

1n2n3 n4

00:00 to 23:59 - 00:00 Authorises entering the time of day at which the night control mode ends.

: hours (00 to 23). The first time the Enter button is continuously pressed, the first two characters in the 4-digit display flash so that hours can be adjusted.

1n2

Yes = the pump is started periodically when the unit is manually stopped. No = periodic pump start is disabled When the unit is manually stopped (e.g. during the winter season) the pump is started each day at 14.00 hours for 2 seconds. If two pumps are a v ailable, pump #1 is started on odd days and pump #2 on e v en days.

Night control mode - start time*

low speed (to reduce fan noise) if permitted by operating conditions, and unit capacity is limited to the maximum night values.

Night control mode - end time*

the unit fans cannot be kept at low speed due to the operating conditions, the unit capacity is reduced to prevent f an operation at high speed.

0 = alarms/alerts, one alarm/alert output per circuit. 1 = alarms only, one alarm output per circuit. 2 = mixed mode, one alarm relay and one alert relay, dual-circuit units only.

0 = schedule in local operating mode 65 to 99 = schedule in CCN operating mode

No two network elements can have the same element number and bus number at the same time.

Yes = password required for all User Configurations (Date, Time Schedule , Broadcast) No = password require f or User menu only When this item is validated, the User Pass word will be required f or all configurations accessible by the User.

This item shows the number of the software version used b y this controller. Access is read only.

4.3.11.5 - Description of Date and Time configuration submenu

DA TE & TIME CONFIGURA TION SUB-MENU ITEM FORMAT COMMENTS

0 dAtE MEnu When selected this item authorises return to the

2 Current day of week setting.

4 nnnn Current year setting.

1n2n3n4

00:00 to 23:59 n1n2: hours (00 to 23). The first time the Enter button is

«Mon» Monday «tUe» Tuesday «uEd» Wednesda y «tHu» Thursday «FrI» Friday «SAt» Saturday «Sun» Sunday

1n2n3n4

01:01 to 31:12 n1n2:day (01 to 31). The first time the Enter button is

previous menu. Current time setting.

continuously pressed, the first two characters in the 4digit display flash so that hours can be adjusted. n3n4: minutes (00 to 59). Continuous pressing of the Enter key again causes the last two characters to flash and minutes can be adjusted.

Current day and month setting. continuously pressed, the first two characters in the 4-

digit display flash so that day can be adjusted. n3n4:month (01 to 12). Continuous pressing of the Enter key again causes the last two characters to flash so that month can be adjusted.

4.3.11.6 - Description of the Time Schedules sub-menus

The 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 set-point 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 COMMENTS

0 Period X Menu Indicates the period (X) you are going to configure.

3 Mo- 0 or Mo- 1 1 = the period is in effect on Monday.

4 tu- 0 or tu- 1 1 = the period is in effect on Tuesday.

5 UE-0 or UE- 1 1 = the period is in effect on Wednesday.0 =

6 tH- 0 or tH- 1 1 = the period is in effect on Thursday.

7 Fr-0 or Fr- 1 1 = the period is in effect on Friday.

8 SA- 0 or SA- 1 1 = the period is in effect on Saturday.

9 Su- 0 or Su- 1 1 = the period is in effect on Sunday.

10 Ho- 0 or Ho- 1 1 = the period is in effect on public holidays.

1n2n3n4

00:00 to 24:00 Authorises entering the time of day at which the

1n2n3n4

00:00 to 24:00 Authorises entering the time of day at which the

When selected this item authorises a return to the main menu.

Occupied period - Start time*. occupied period starts.

Occupied period - End time*. occupied period ends.

0 = period not in effect on Monday

0 = period not in effect on Tuesday.

period not in effect on Wednesday.

0 = period not in effect on Thursda y.

0 = period not in effect on Frida y.

0 = period not in effect on Saturday.

0 = period not in effect on Sunday.

0 = period not in effect on public holidays.

4.3.11.7 - Description of the Holidays sub-menus

This 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 occupied 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.

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.

* n

: hours (00 to 24). The first time the Enter button is continuously pressed,

1n2

the first two characters in the 4-digit display flash so that hours can be adjusted. n3n4: minutes (00 to 59). Continuous pressing of the Enter key again causes the last two characters to flash so that minutes can be adjusted.

Typical timer program:

Time

10 11 12 1 14 1 1 17 1 19 2 21 22 23 24

P1 P1

6 7 8

P3P2P2 P3 P3

P5P4P4P3P2P2 P5P4P4P3P2P2 P5P4P4P3P2P2 P5P4P4P3P2P2

P5P4P4P3P2P2 P4P4P3P2P2 P4P4P3P2P2 P4P4P3P2P2 P4P4P3P2P2 P4P4P3P2P2

HOLSUNSATFRITHUWESTUEMON

MON : Monday TUE : Tuesday WED : Wednesday THU : Thursday FRI : Friday SAT : Saturday SUN : Sunday HOL : Public holidays

P6P3

Occupied Unoccupied

Starts at Ends at Active on

P1: period 1, 0h00, 3h00, Monday P2: period 2, 7h00, 18h00, Monday and Tuesday P3: period 3, 7h00, 21h00, Wednesday P4: period 4, 7h00, 17h00, Thursday and Friday P5: period 5, 7h00, 12h00, Saturday P6: period 6, 20h00, 21h00, Public holidays P7: period 7, Not used in this example P8: period 8, Not used in this example

HOLIDA Y PERIOD X CONFIGURATION SUB-MENUS (X = 1 TO 16) ITEM # FORMAT COMMENTS

0 HoLidAy X Sub-menu When selected this item authorises a return to

the configuration menu.

1 0 to 12 Start month of public holiday period

0 = period not in use 1 = January, 2 = February, etc.

2 0 to 31 Start day of public holiday period. 0 period

not in use.

3 0 to 99 days Duration of the public holiday period in

days.

Typical programming for public holidays:

A public holiday period lasting 1 day on 20th May, for instance, is configured as follows: start month = 5, start day = 20, duration = 1 A public holiday period lasting 2 day on 25th May, for instance, is configured as follows: start month = 5, start day = 25, duration = 2

BROADCAST CONFIGURATION SUB-MENU ITEM # FORMAT COMMENTS

0 broAdCASt MEnu When selected this item authorises a return to the main menu. 1 YES/no Determines whether or not the unit is a broadcast acknowledger when the unit is connected on a CCN network. There must be only

one broadcast acknowledger in a CCN. Warning: if the unit operates in standalone mode (not CCN connected) this choice must be set to Yes if the holiday function is used

(see section 4.3.11.6) or if you want to configure the da ylight sa ving time function.

2 YES/no This item authorises enabling or disabling the Broadcast function. When it is set to Yes, the control will make a periodic broadcast

on the CCN. When it is set to No, the control is not the broadcaster and there is no need to configure the other choice in this table. There must be only one broadcaster in a CCN and this item should not be configured if any other system element is acting as broadcaster.

Warning: if the unit operates in standalone (not CCN connected) this choice must be set to Yes if the holiday function is used (see section 4.3.11.6) or if you want to configure the daylight sa ving time function.

3 nnn OA T Broadcaster bus number: it is the bus number of the system that has the outside air temperature sensor connected to it.

0 to 239 Used for CCN network function only.

4.3.11.8 - Description of the Broadcast sub-menu

The 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.

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

4 nnn OA T Broadcaster element number: it is the element number of the system element that has the outside air temperature sensor

5nn Daylight saving start month. In this mode you enter the month in which the broadcaster will adjust its time for the start of

6nn Daylight saving start day. In this mode you enter the day on which the broadcaster will adjust its time for the start of daylight

8 nnnn Daylight saving start minutes to add: number of minutes by which the broadcaster will adjust its time for the start of daylight

9nn Daylight saving stop month. In this mode you enter the month in which the broadcaster will adjust its time for the end of

10 nn Daylight saving stop day. In this mode you enter the day on which the broadcaster will adjust its time for the end of daylight

11 n

12 nnnn Daylight saving start minutes to subtract: number of minutes by which the broadcaster will adjust its time for the end of

0 to 239 connected to it. Used for CCN network function only.

1 to 12 daylight saving time.

1 to 31 saving time.

1n2n3n4

00:00 to 24:00 adjust its time for the start of daylight saving time.

1 to 1440 minutes saving time.

1 to 12 daylight saving time.

1 to 31 saving time.

1n2n3n4

00:00 to 24:00 will adjust its time for the end of daylight saving time.

1 to 1440 minutes daylight saving time.

Authorises entering the hours and minutes for saving start. In this mode you enter the time of day when the broadcaster will

n1n2: hours (00 to 24). The first time the Enter button is continuously pressed, the first two characters in the 4-digit display flash so that hours can be adjusted. n3n4: minutes (00 to 59). Continuous pressing of the Enter key again causes the last two characters to flash so that minutes can be adjusted.

Authorises entering the hours and minutes for saving stop. In this mode you enter the time of day when the broadcaster

4.3.12 - Description of the Alarms menu

] ] ] ] ] ] ]

This 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 MENU

ITEM #

1 This item is masked when nil * Pressing the Enter key when alarm code is displayed causes the following

message to be scrolled: “time of alarm” “date of alarm” “full CCN alarm message”

- “time of alarm”: xxhmm

- “date”: dd-mm

- “full CCN alarm message”: up to 64 characters

0 [1]

1 [1] 2 [1] 3 [1] 4 [1] 5 [1]

FORMAT

X ALArM rESEt ALArM

1 to 55 1 to 55 1 to 55 1 to 55 1 to 55

COMMENTS

X alarms are active Reset of alarms is requested

To reset all active alarms , continuously press the Enter key. ‘rESET ALArM’ is then displayed. Press the select key again: all alarms are reset.

Current alarm code 1* Current alarm code 2* Current alarm code 3* Current alarm code 4* Current alarm code 5*

4.3.13 - Description of the Alarms History menu

ALARMS HISTORY MENU

ITEM #

10 [1]

1 This item is masked when nil * Pressing the Enter key when alarm code is displayed causes the following

message to be scrolled: “time of alarm” “date of alarm” “full CCN alarm message”

- “time of alarm”: xxhmm

- “date”: dd-mm

- “full CCN alarm message”: up to 64 characters

1 [1] 2 [1] 3 [1] 4 [1]

5 [1] 6 [1] 7 [1] 8 [1] 9 [1]

FORMAT

1 to 55 1 to 55 1 to55 1 to 55 1 to 55 1 to 55 1 to 55 1 to 55 1 to 55 1 to 55

COMMENTS

Alarm history code 1* Alarm history code 2* Alarm history code 3* Alarm history code 4* Alarm history code 5* Alarm history code 6* Alarm history code 7* Alarm history code 8* Alarm history code 9* Alarm history code 10*

4.3.14 - Runtime menu description

RUNTIMES

RUNTIMES 1 [runtiMES 1]

RUNTIMES 2 [runtiMES 2]

MAINTENANCE [MAintEnAnCE]

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

4.3.14.1 - Description of the Runtimes 1 menu

RUNTIMES MENU [2] ITEM

FORMAT

nnnn | M 10 | M100

2 [1]

nnnn | M 10 | M100

3 [1]

nnnn | M 10 | M100

5 [1]

nnnn | M 10 | M100

6 [1]

nnnn | M 10 | M100

7 [1]

nnnn | M 10 | M100

8 [1]

nnnn | M 10 | M100

9 [1]

nnnn | M 10 | M100

12 [1

nnnn | M 10 | M100

13 [1

nnnn | M 10 | M100

14 [1

nnnn | M 10 | M100

15 [1

nnnn | M 10 | M100

16 [1

nnnn | M 10 | M100

17 [1

nn nn

18 [1

1 This item is masked when not used

NOTES

* Certain values are divided by 10 or by 100, so that number of hours or start-

ups of less then 10 are displayed as 0. When the value is divided by 10 or by 100 it is displayed in turn with “M 10” or

“M100”.

UNITS

hrs/10 or 100 hrs/10 or 100

hrs/10 or 100

-/10 or 100

-/10 or 100 hrs/10 or 100 hrs/10 or 100

COMMENTS

When selected this item authorises return to the previous menu

Unit operating hours* Unit operating hour in cooling

mode Unit operating hours in heating

mode Compressor A1 operating

hours* Compressor A2 operating

hours* Compressor A3 operating

hours* Compressor B1 operating

hours* Compressor B2 operating

hours* Compressor B3 operating

hours* Machine starts* Compressor A1 starts* Compressor A2 starts* Compressor A3 starts* Compressor B1 starts* Compressor B2 starts* Compressor B3 starts* Pump #1 operating hours* Pump #2 operating hours*

4.3.14.2 - Description of Runtimes 2 menu

5 - PRO-DIALOG CONTROL OPERATION

ITEM #

5 [1]

6 [1]

7 [1]

8 [1]

FORMAT

nnnn | M 10 | M100

nnnn | M 10

nnnn | M 10 | M100

UNITS

minutes

hrs/10 or 100

-/10 or 100

DESCRIPTION

When selected this item authorises return to the previous menu

Compressor starts for compressor with most starts during the last hour

24 hours average number of starts/hour, compressor

Minimum compressor operating time during last hour

24 hours average minimum operating time above

Boiler operating hours

Electric heating stage operating hours

No. of defrost cycles, circuit A

No. of defrost cycles, circuit B

4.3.14.3 - Maintenance menu description

To be active, the maintenance function must be preset in the Service configuration

ITEM #

1 [1] 2 [1] 3 [1] 4 [1] 5 [1]

6 [1]

7 [1]

1 This item is masked when not used.

FORMAT

MAintEnAnCE MEnu

ALErt nnn/ALErt

nnn/ALErt

DESCRIPTION

When selected this item authorises return to the previous menu.

Accessible with the Service password. For future use For future use Water loop rate to low Next primary pump maintenance operation in

nnn days. 'ALErt' is displayed, when the delay before maintenance has elapsed.

Next secondary pump maintenance operation in nnn days. 'ALErt' is displayed, when the delay before maintenance has elapsed.

Next water filter maintenance operation in nnn days. 'ALErt' is displayed, when the delay before maintenance has elapsed.

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 arrangement. 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 STATUS OF PARAMETERS CONTROL UNIT

LOFF

Active

L-C

Active

L-SC

Active

rEM

Active Active

Active Active Active

CCN

Active Active

Active

MASt

Active Active Active Active Active

CHIL_S_S

Disable

Enable

REMOTE START/STOP CONTACT

Off

On cooling On heating On auto

MASTER CONTROL TYPE

Local Remote Remote CCN CCN

Local Remote Remote Remote CCN

START/STOP SCHEDULE MODE

Unoccupied

Unoccupied Unoccupied

Unoccupied

Occupied Occupied Occupied Occupied Occupied Occupied Occupied Occupied Occupied Occupied

CCN EMERGENC SHUTDOWN

Enable

Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable

GENERA ALARM

Yes

No No No No No No No No No No No

TYPE MODE

Local Local Remote Remote CCN CCN Local Remote Remote CCN CCN Local Local Remote Remote Remote CCN Local Remote Remote Remote CCN

Off Off Off Off Off Off Off Off Off Off Off Off Off On On On On On On On On On On On

5.2 - Heating/cooling/standby operation

5.2.1 - General

The heating/cooling/standby selection applies to all units. But only 30RA/RY (liquid chillers) units, controlling a boiler and 30RH/RYH (heat pumps) units can change over to heating mode. Heating/cooling control can be automatic or manual.

In automatic mode the outdoor temperature determines the heating/cooling/standby changeover based on the two threshold values configured by the user (see Setpoint menu for cooling and heating mode changeover thresholds). If the unit is in standby it does not cool or heat, and no compressor can be activated. The diagram below summarises the operating principle in automatic mode.

HEATING STANDBY COOLING

Heating threshold*

* This threshold does not apply to cooling only units that do not control a boiler.

Cooling threshold

Outdoor temperature

5.2.2 - Heating/cooling/auto selection

The table below summarises the unit heating/cooling 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/auto selection in local mode: operating

mode selected via the user interface. See Information menu.

- Remote heating/cooling contacts: these contacts are only

active if the unit is under remote control. See sections

3.6.2 and 3.6.3.

- HC_SEL: this network command permits heating/

cooling/auto control, if the unit is in CCN operating mode.

- Outdoor temperature: determines the operation, if the

unit is in automatic heating/cooling/standby changeover mode.

ON/OFF STATUS

Off On On On On On On On On On On On On On On On

* Does not apply to cooling only units that do not control a boiler.

CONTROL TYPE

Local Local Local Local Local Remote Remote Remote Remote Remote CCN CCN CCN CCN CCN

HEATING/COOLING SELECTION IN LOCAL MODE

Cooling Heating Auto Auto Auto

REMOTE HEATING/ COOLING CONTACTS

Cooling mode Heating mode Auto mode Auto mode Auto mode

PARAMETER STATUS

HC_SEL

Cooling Heating Auto Auto Auto

OUTDOOR TEMPERATURE

> Cooling threshold < Heating threshold Between cooling and heating thresholds

OPERATING MODE

Cooling Cooling Heating Cooling Heating* Standby Cooling Heating Cooling Heating* Standby Cooling Heating Cooling Heating* Standby

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 after the unit goes to stop mode. The pump keeps working when the unit switches from heating to cooling mode or vice-versa. It is turned off if the unit is shut down due to an alarm unless the fault is a frost protection error. The pump can be started in particular operating conditions when the evaporator heater is active (see section 5.5). 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 changeover 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 secondary pump is available, the unit is stopped and started again with this pump.

5.4 - 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.

5.5 - Evaporator antifreeze protection

The heater for the evaporator and water pump cycling (for units with a pump) can be energised to protect the evaporator, if it can be damaged by freezing, when the unit is shut down for a long time at low outdoor temperature.

NOTE: Evaporator heater control parameters can be modified, using the Service configuration.

5.6 - Control point

The control point represents the water temperature that the unit must produce. The inlet water is controlled by default, but the outlet water can also be controlled (requires a Service configuration modification).

Control point = active setpoint + reset

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.

5.6.1 - Active setpoint

Two 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 operations, 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).

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 #12 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 3.6.6.

- Control contact 3: status of control contact 3 (single-

circuit units only). See section 3.6.4.

- 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 MODE PARAMETER STATUS

HEATING/COOLING OPERATING MODE

Cooling Cooling Cooling Cooling Heating Heating Heating Heating Heating Heating

LOCAL SETPOINT SELECTION

sp 1 sp 2 Auto Auto sp 1 sp 2 sp 3 Auto Auto Auto

SCHEDULE 2 STATUS

Occupied Unoccupied

Occupied Unoccupied Holiday

ACTIVE SETPOINT

Cooling setpoint 1 Cooling setpoint 2 Cooling setpoint 1 Cooling setpoint 2 Heating setpoint 1 Heating setpoint 2 Heating setpoint 3 Heating setpoint 1 Heating setpoint 2 Heating setpoint 3

REMOTE OPERATING MODE - DUAL-CIRCUIT UNITS

PARAMETER STATUS HEATING/COOLING

OPERATING MODE

Cooling Cooling Cooling Cooling Cooling Heating Heating Heating Heating Heating Heating

CCN OPERATING MODE PARAMETER STATUS HEATING/COOLING

OPERATING MODE

Cooling Cooling Heating Heating Heating

CONTROL CONTACTS

sp 1 sp 2 sp 3 Auto Auto sp 1 sp 2 sp 3 Auto Auto Auto

SCHEDULE 2 STATUS

Occupied Unoccupied Occupied Unoccupied Holiday

SCHEDULE 2 STATUS

Occupied Unoccupied

Occupied Unoccupied Holiday

ACTIVE SETPOINT

Cooling setpoint 1 Cooling setpoint 2 Heating setpoint 1 Heating setpoint 2 Heating setpoint 3

ACTIVE SETPOINT

Cooling setpoint 1 Cooling setpoint 2 Cooling setpoint 2 Cooling setpoint 1 Cooling setpoint 2 Heating setpoint 1 Heating setpoint 2 Heating setpoint 3 Heating setpoint 1 Heating setpoint 2 Heating setpoint 3

REMOTE OPERATING MODE - SINGLE-CIRCUIT UNITS PARAMETER STATUS

HEATING/COOLING OPERATING MODE

Cooling Cooling Cooling Cooling Heating Heating Heating Heating Heating

CONTROL CONTACT 3 SELECTION

Setpoint Setpoint Demand limit Demand limit Setpoint Setpoint Demand limit Demand limit Demand limit

CONTROL CONTACT 3

Setpoint 1 Setpoint 2

SCHEDULE 2 STATUS

Occupied Unoccupied

Occupied Unoccupied Holiday

ACTIVE SETPOINT

Cooling setpoint 1 Cooling setpoint 2 Cooling setpoint 1 Cooling setpoint 2 Heating setpoint 1 Heating setpoint 2 Heating setpoint 1 Heating setpoint 2 Heating setpoint 3

5.6.2 - Reset

Reset 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 modification 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.

5.7 - Demand limit

Generally, demand limit is used by an energy management system to restrict the unit electricity consumption. The PRODIALOG control system enables the capacity of the unit to be limited by means of user-controlled volt-free contacts. Singlecircuit 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 lev els. The capacity 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 commands.

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

5.8 - Night mode

Reset example in cooling mode

Reset value

Legend

A Maximum reset value B OAT or delta T for no reset C OAT or delta T for full reset D Building Load

Outdoor temperature (OAT) Evaporator Delta T

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 (but a minimum capacity value can be configured).

5.9 - Capacity control

This function adjusts the number of active compressors to keep

% Building load

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, low pressure or defrost 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).

NOTE: Circuits with 3 compressors (reversible heat pump units) only provide 2 capacity stages (2 compressors are started/stopped together).

5.10 - Head pressure control

Condensing pressure control is automatically ensured by a twospeed fan and can also be ensured by an additional fan on each circuit (no adjustment).

Fan start-up: ATTENTION: In accordance with the operating conditions the fans can be cleaned periodically. A fan can start at any time, even if the unit has been shut down.

5.11 - Defrost function

Defrost is activated, when the unit is in heating mode, in order to reduce frost build-up on the air heat exchanger. The defrost cycle can only be applied to one circuit at a time. During the defrost cycle the fans of that circuit are stopped, and the fourway refrigerant valve is reversed, forcing the circuit to cooling mode. The fan can temporarily be restarted during the defrost cycle. The defrost c ycle is full y automatic and does not require any setting. A condensate heater prevents ice formation at the bottom of the heat exchangers, if the defrost cycles are taking place at low outdoor temperature.

5.12 - Additional electric heater stage control

The heat pump units can control up to four additional electric heating stages.

The electric heating stages are activated to complement the heating capacity when the following conditions are satisfied:

- The unit uses 100% of the available heating capacity, or the unit is limited in its operation by a protection mode (low suction temperature, hot gas or defrost sequence in progress protection), and in all cases cannot satisfy the heating load.

- The outdoor temperature is below a configured threshold (see User 1 configuration).

- The unit demand limit is not active.

The user may configure the last available electric heating stages as a safety stage. In this case, the safety stage is only activated in addition to the other stages if there is a machine fault, preventing the use of the heating capacity . The other electr ic heating stages will continue to operate as described above.

5.13 - Control of a boiler

NOTE: The control of the electric heating stages or 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.

- The unit is in heating mode, but works at a very low outdoor temperature, making the heat pump capacity insufficient. The outdoor air temperature threshold for use of the boiler is fixed at -10°C, but this value can be adjusted in the User 1 menu.

5.14 - Master/slave assembly

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 com-mands. 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 voltfree 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 command 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.

5.15 - Controlling Pro-Dialog units with a System Manager

Two PRO-DIALOG 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 configuration 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.

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

A C

6 - DIAGNOSTICS - TROUBLESHOOTING

6.1 - General

The PRO-DIALOG 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.

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 ALARMS OPERATION ITEM NUMBER ITEM VALUE PRESS MENU

Hold down the MENU button until the LED for alarms lights. The 4digit display shows the number of active alarms (2 in this example).

Press the Enter button until "rESEt ALARrM" is shown in the 4-digit display.

2-DIGIT DISPLAY 4-DIGIT DISPLAY BUTTON LED

0 2 ALArM

0 rESEt ALArM

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

6.3 - Resetting alarms

Press the Enter button again to validate the reset. "Good" is displayed for 2 seconds then, "2 ALArM" and

0 Good

then, 2 AL then, no ALArM

then, "no ALArM".

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.

6.4 - Alarm codes

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

ALARM CODE DESCRIPTIONS

LARM

ALARM NAME

ODE

Compressor A1 failure

Compressor A2 failure

Compressor A3 failure

Compressor B1 failure

Compressor B2 failure

Compressor B3 failure

Heat exchanger leaving fluid thermistor failure

Heat exchanger entering fluid thermistor failure

CHWS fluid thermistor failure (master/slave)

Defrost sensor fault, circuit A

Defrost sensor fault, circuit B

OAT sensor failure

Discharge pressure transducer failure, Circuit A

Discharge pressure transducer failure, Circuit B

Suction pressure transducer failure, Circuit A

Suction pressure transducer failure, Circuit B

CCN/clock board failure

Loss of communication with slave board

Loss of communication with compressor slave board

Loss of communication with PD4 x DO slave board

ALARM DESCRIPTION

Motor safety input has opened due to compressor overtemperature protection.

As above As above As above As above As above Thermistor outside range

As above

As above As above Voltage delivered by the sensor is incorrect

Value read by the sensor is outside range

Voltage delivered by the sensor is incorrect

Value read by the sensor is outside range

The clock board is no longer detected Communication has been lost with the slave

board (circuit B control) Communication has been lost with the

compressor A3 + B3 control board Communication has been lost with the

electric heating stage control board

ACTION TAKEN BY THE CONTROL

Compressor is shut down

As above As above As above As above As above Unit shut down

As above

Circuit shut down, if unit is in heating mode

As above As above Circuit A shut down

Circuit B shut down

Circuit A shut down

Circuit B shut down

Unit shut down Circuit B shut down

Compressors A3 + B3 shut down

Electric heating stages shut down

RESET TYPE

Manual

As above As above As above As above As above Automatic, if temp. measured by sensor

returns to permitted range of values As above

As above

As above As above Automatic if the voltage delivered by the

sensor returns to normal As above

As above

Automatic if board is detected again Automatic if communication is re-

established As above

As above

PROBABLE CAUSE

Compressor overheat

As above As above As above As above As above Faulty thermistor, wiring error or

disconnection As above

As above

As above As above Defective transducer, wiring fault

As above

Defective CCN/clock board Bus wiring fault, wrong software in slave

board or defective slave board As above

As above

A C

ALARM CODE DESCRIPTIONS (continued)

LARM

ALARM NAME

ODE

Low refrigerant pressure failure, circuit A

Low refrigerant pressure failure, circuit B

High pressure failure, circuit A

High pressure failure, circuit B

Reverse compressor rotation, circuit A

Reverse compressor rotation,

circuit B Water heat exchanger frost

protection

Repeated low evaporator suction temperature unloading, circuit A

Repeated low evaporator suction temperature unloading, circuit B

Repeated high pressure

unloading, circuit A

Repeated high pressure unloading, circuit B

Repeated high discharge

temperature unloading in heating mode, circuit A

Repeated high discharge

temperature unloading in heating mode, circuit B

Repeated low suction

temperature unloading in heating mode, circuit A

Repeated low suction

temperature unloading in heating mode, circuit B

Low heat exchanger entering

water temperature in heating mode

Safety interlock open

Pump #1 fault

Pump #2 fault

CCN emergency stop

Loss of communication with System Manager

Communication failure with the master or the slave unit

Initial factory configuration required

ALARM DESCRIPTION

Circuit running and the suction pressure below threshold

As above

Circuit running and the discharge pressure exceeds the high pressure trip point

As above One circuit compressor runs in reverse

rotation As above

The heat exchanger entering or leaving water sensor is below the frost trip point

More than 6 successive circuit capacity unloads because of low suction temperature override.

As above

More than 6 successive circuit capacity unloads because of high pressure override.

As above

More than 8 successive circuit capacity unloads because of high discharge temperature

As above

More than 8 successive circuit capacity unloads because of low suction temperature

As above

Heat exchanger temperature is too low (less than 10°C), preventing unit start-up

Safety interlock not closed before end of the start-up delay or opens during operation

Evap. water pump run contact opens while the pump has received a command to be on

As above CCN command received to shutdown the

unit The unit is controlled by a System Manager

and communication with this module is lost for more than 2 minutes

The master/slave link is broken due to a loss of communication between the two units for more than 2 minutes

All factory parameters are zero

ACTION TAKEN BY THE CONTROL

Circuit shut down

As above

Circuit shut down

As above As above

As above

Unit shut down

Circuit shut down

As above

None

As above

Unit shut down

Unit prevented to start or shut down

Unit shut down

Unit shut down Unit shut down

Unit returns to autonomous operating mode

As above

Unit prevented to start

RESET TYPE

Automatic when pressure returns to normal and if the same fault has not occurred the same day (machine equipped with CCN/clock board, If not, manual)

As above

Manual, the high pressure switch must be reset manually with the push-button located on or in the pressure switch

As above As above

As above

Automatic if the same alarm has not tripped the same day (machine equipped with CCN/clock board, If not, manual)

Manual

As above

Automatic

As above

Manual

Manual Manual

Automatic when communication is reestablished

As above

Automatic

PROBABLE CAUSE

Shortage of refrigerant, filter blocked or faulty pressure sensor

As above

Fan circuit fault, high condenser entering air temperature

As above Incorrect compressor wiring

As above

Low water flow or defective thermistor

Faulty pressure sensor, clogged filter or low refrigerant charge

As above

Faulty transducer, high condenser entering air temperature, high entering water temperature, condenser fouled fan flow rate too low.

As above

Pressure sensor faulty or heat exchanger fouled

As above

Pressure sensor faulty, filter obstr ucted, shortage of refrigerant, heat exchanger fouled or fan faulty.

As above

Evaporator pump control or water flow switch failure

Pump overheat, incorrect pump connection

As above Network command

Defective CCN bus wiring or system module failure

As above

No factory configuration

Illegal factory configuration

Master/slave configuration error

Maintenance alerts Water loop flow rate too low

55-2

Maintenance delay, pump 1,

55-4

elapsed Maintenance delay, pump 2,

55-5

elapsed Maintenance delay, water filter,

55-6

elapsed

Wrong factory configuration Wrong master/slave configuration

A maintenance alert is active

Order No. 13444-76, 06.2005. Supersedes order No.: 13429-76, 06.2004. Manufactured by: Carrier s.a., Montluel, France. Manufacturer reserves the right to change any product specification without notice. Printed in the Netherlands on chlorine-free paper.

As above Master/slave control

disabled None

Automatic Automatic

Manual

Factory configuration error Master or slave configuration error

Carrier 30RY-RYH, 30RA-RH User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 - SAFETY CONSIDERATIONS

2 - GENERAL DESCRIPTION

1.1 - General

1.2 - Avoid electrocution

2.1 - General

2.2 - Abbreviations used

3 - HARDWARE DESCRIPTION

3.2 - Electrical supply to boards

3.1 - General

3.3 - Light emitting diodes on boards

3.4 - The sensors

3.5 - The controls

3.6 - Connections at the user's terminal block

4 - SETTING UP PRO-DIALOG CONTROL

4.1 - Local interface general features

4.2 - Unit start/stop control

4.3 - Menus

5 - PRO-DIALOG CONTROL OPERATION

5.1 - Start/stop control

5.2 - Heating/cooling/standby operation

5.3 - Evaporator water pump control

5.4 - Control interlock contact

5.5 - Evaporator antifreeze protection

5.6 - Control point

5.7 - Demand limit

5.8 - Night mode

5.9 - Capacity control

5.10 - Head pressure control

5.11 - Defrost function

5.12 - Additional electric heater stage control

5.13 - Control of a boiler

5.14 - Master/slave assembly

5.15 - Controlling Pro-Dialog units with a System Manager

6 - DIAGNOSTICS - TROUBLESHOOTING

6.1 - General

6.2 - Displaying alarms

6.3 - Resetting alarms

6.4 - Alarm codes