bre control manual en

UNIFLAIR

Instruction manual

REGULATION PROGRAMME FOR B.R.E. UNITS

EN

Regulation Programme for B.R.E. Units

2 06MC0068@00B0110 15/10/2009

UNIFLAIR SpA policy is one of continuous technological innovation. The Company therefore reserves the right to amend any data herein without prior notice.

Disposal: the product is made up of metal parts and plastic parts. In reference to European Union directive 2002/96/EC issued on 27 January 2003 and the related national legislation, please note that:

WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately;

The public or private waste collection systems defined by local legislation must be used. In addition, the equipment can be returned to the distributor at the end of its working life when buying new equipment.

The equipment may contain hazardous substances: the improper use or incorrect disposal of such may have negative effects on human health and on the environment;

The symbol (crossed-out wheeled bin) shown on the product or on the packaging and on the instruction sheet indicates that the equipment has been introduced onto the market after 13 August 2005 and that it must be disposed of separately;

In the event of illegal disposal of electrical waste, the penalties are specified by local disposal legislation.

Drafted by: Checked by: Approved by:

Munari Andrea 15/10/2009

READ AND SAVE THESE INSTRUCTIONS


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CONTENTS

GENERAL FEATURES .................................................................................................................................................................. 5USER INTERFACE ........................................................................................................................................................................ 6LANGUAGE SELECTION .............................................................................................................................................................. 6DISPLAY INFORMATION WITH UNIT OFF ................................................................................................................................... 7CONDITIONS FOR UNIT START ................................................................................................................................................... 8UNIT SWITCH ON/OFF .................................................................................................................................................................. 8INFORMATION DISPLAYED WITH THE UNIT RUNNING ............................................................................................................ 9SWITCH ON/OFF USING MANUAL OVERRIDE ......................................................................................................................... 10VIEWING UNIT STATUS .............................................................................................................................................................. 11ACCESS TO DATA IN CONSULTING OR PROGRAMMING MODE ........................................................................................... 12ACCESS LEVELS ........................................................................................................................................................................ 13EDITING PARAMETERS ............................................................................................................................................................. 14PROGRAMME VERSION ............................................................................................................................................................. 14PROGRAMME IDENTIFICATION ................................................................................................................................................ 15SPECIAL FEATURES .................................................................................................................................................................. 15HOUR-METER READING AND PROGRAMMING ....................................................................................................................... 15CONSULTING INPUT AND OUTPUT STATES ........................................................................................................................... 17

INPUT/OUTPUT TABLE FOR THE TWO UPCO BOARDS ....................................................................................................... 18CONFIGURING THE UNITS DEVICES: "HARDWARE CONFIG." .............................................................................................. 19

HARDWARE CONFIGURATION .............................................................................................................................................. 19EVAPORATOR ANTI-ICE FEATURE WITH CONTROL ON DELIVERY ..................................................................................... 25DELAY SETTINGS ....................................................................................................................................................................... 26MANUAL CONTROL .................................................................................................................................................................... 27EXV PARAMETERS ..................................................................................................................................................................... 28UNITS REMOTE CONTROL ....................................................................................................................................................... 32UNIT IN LOCAL AREA NETWORK (LAN) .................................................................................................................................... 33WORKING PARAMETERS........................................................................................................................................................... 34SETBACK MODE ......................................................................................................................................................................... 35LOW POWER ............................................................................................................................................................................... 36SUMMER / WINTER SWITCH OVER .......................................................................................................................................... 36CLOCK-CALENDAR - TIME BANDS ............................................................................................................................................ 38ALARM ADDRESSING ................................................................................................................................................................. 40READING OF ALARMS ................................................................................................................................................................ 41UPDATING THE PROGRAM........................................................................................................................................................ 47DEFAULT VALUES ...................................................................................................................................................................... 48APPENDIX SCREENS FLOW CHARTS ................................................................................................................................... 51GENERAL INFORMATION AND DEFINITIONS .......................................................................................................................... 54MOST COMMON PLAN NETWORK CONFIGURATIONS ........................................................................................................... 55PLAN CONNECTION BETWEEN UPCO BOARDS ..................................................................................................................... 55REMOTE TERMINAL CONNECTIONS ........................................................................................................................................ 56CABLE FOR LAN AND SUPERVISION CONNECTION .............................................................................................................. 57


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EXAMPLE OF A CONNECTION TO THE REMOTE TERMINAL FROM THE BOARD ................................................................ 58CONFIGURATION OF THE TERMINAL AND THE UPCO BOARD ............................................................................................. 59LAN ADDRESS OF THE UPCO BOARD ..................................................................................................................................... 60LAN PARAMETER CONFIGURATION ........................................................................................................................................ 62VISUALIZATION OF THE NETWORK FROM THE TERMINAL ................................................................................................... 62NOTE ............................................................................................................................................................................................ 63


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GENERAL FEATURES

The microprocessor control manages unit operation. The control is essentially formed of:

a microprocessor control board, housed inside the electrical panel; a graphic user interface.

Control board Graphic user interface

In BRE units, the inputs and outputs of the two circuits are divided into two boards connected with each other in a local area network. The two boards perform like a single controller to all intents and purposes. The microprocessor controller manages the units operation autonomously.

The microprocessor control board contains the settings programme and all the stored operating parameters which can be viewed and set on the user interface.

Il sistema di controllo garantisce le seguenti funzioni: setpoint offsetting via 0-10 volt input control of delivery water temperature based on a settable setpoint; option of setting a double setpoint (for cooling mode); option of calculating the setpoint based on external temperature compensation; complete alarm detection system with visual and audible indicators, and messages regarding measures to be

taken; logging of all alarm events; alarm warning contacts divided up by type; programmable automatic restart when power is restored; remote unit switch on/off; control of all compressor operating time settings, pump-down mode management, compressor operation

rotation, to assure their efficiency and reliability; three types of cooling control: modulating, by steps and by steps in ultra-low-noise mode; suction pump management; antifreeze heating element management; management of unit operating as heat pump; defrosting management; password on 2 programming levels (setting, hardware and software configuration); possibility of communicating with a supervision system by means of a the following types of protocol: Netvisor,

Modbus, Bacnet, Lon, Metasys, SNMP (TCP/IP) and Trend; clock/calendar management (clock card optional); counter totalling hours of operation of most important components; display of operating status of all unit components and display of all values detected by sensors connected to

the control card; option of setting separate weekly switch on/off time bands (with optional clock card):

Weekdays - Saturdays - Sundays and holidays

LAN 1

LAN 21


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management of switching off for consecutive days (Holiday Programme) management of the local network with the possibility of setting the rotation of a unit in stand-by and the

operation of this unit in set-back mode, regulation based on the average temperatures and regulations steps; override facility via which operation of main components can be controlled manually without disabling remote

control, where operating; optimized control algorithm that constantly measures external temperature to manage freecooling mode in the

best way possible

USER INTERFACE

The user interface is made up of: 1 backlit 20x4 pixel LCD display with buzzer; 15 backlit keys to move between and change parameters.

The microprocessor board is connected to the user interface by a 6 pole telephone cable with a RJ11 jack connector.

LANGUAGE SELECTION

Normally the display uses the language that has been defined by the regulation programme selected in the Flash memory: IT = Italian, EN = English, DE = German, FR = French , SP = Spanish, RU = Russian and the possibility

of selecting a different language at any moment , by pressing on and .

+

+

+

+

+

NOTE: The only exceptions to this rule are the forms for service engineers ("Hardware Configurations"), which always appear in English.

12:22 26.3C Inizializzazione Attendere...

LAN01

12:22 26.3C Initiating ... Please Wait

LAN01

12:22 26.3C Einschaltung... Bitte warten

LAN01

12:22 26.3C DEPART

Attendre s.v.p. LAN01

12:22 26.3C Inicio Espere

LAN01


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DISPLAY INFORMATION WITH UNIT OFF

As soon as power is supplied to the control, the following forms appear:

When the unit is powered but not running, 3 fields are active on the user terminal display:

A. Time and current date (only in units featuring a clock card); B. Outlet water temperature. C. One of the following messages indicating what has switched

the unit off:

1. ON/OFF button; 2. Remote control ; 3. Supervision system; 4. Timed switch-off - in units with clock card - indicating what

time the next restart is programmed for; 5. Automatic unit inversion cycle; 6. Setback mode; 7. Forced switch-off subsequent to water flow alarm; 8. Forced switch-off subsequent to water flow alarm.

1.

2.

3.

4.

5.

6.

7.

8.

If you have chosen the holidays programme, the following form will appear:

Warning : Stopped by Water Flow Alarm

Warning : Unit in Set Back Mode

Initiating Please wait

12:22 26.1C EST Water OUT: C 23.0

C

A B C

To Start Unit Press On Key

Warning : Stopped by Remote Control!

Warning : Stopped by Supervisor !

Programmed Stop Restart at 13:15 LU

Warning : Stopped on Standby !

Programmed Stop Press On Key

12:30 MO 28/01/02 Holiday Program

Restart in : 10 days (with prog. cycle)

###################### Selftest

please wait ######################


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CONDITIONS FOR UNIT START

The following operations must be performed before the user can start the unit:

check that the yellow light on the button is on (controller powered);

check that the red light on the button is off (no alarms active); check that the unit switches on and the green light on the

ON

OFF button comes on after having pressed it,

alternatively:

check that the unit is started when the remote digital input ID1 (see screen 140) contact is closed; check that the unit is started by the supervisory system if this connected and configured (see screen

140); check that the unit is started by the daily or weekly time bands (see screen 250).

UNIT SWITCH ON/OFF

The unit can be switched on in the following ways:

LOCAL mode via keypad: unit is controlled with the ON

OFF pushbutton (the

first time it is pressed, the unit starts; the second time, it switches off). Audible feedback tells you that the ON/OFF key has actually been pressed. The controller commands compressor start so that the units on and off cycles are not too close together (no more than 6 starts an hour). Hence the compressors start may be delayed after the ON/OFF key is pressed. The units new state is stored. When power is restored, the unit returns to the state it was in before the power was cut, meaning it will restart if it was running at the time.

ON

OFF

ON

OFF

AUTOMATIC mode: the controller is configured so that the unit switches on and off with: 1. a remote ON/OFF contact (only possible if said feature is enabled); 2. a supervision system (only possible in units featuring a serial card); 3. programmed automatic time bands (only in units featuring a clock card); 4. the automatic rotation cycle for units on standby. If programmed in setback mode, the unit also starts automatically when the set temperature and humidity limits are exceeded.

NB: when operating in automatic mode, the ON

OFF push button can only be used by switching the unit on or off using

the override feature by entering the "SETTINGS" password (see section entitled "SWITCH ON/OFF USING MANUAL OVERRIDE").

12:22 26.1C ESTT. water OUT: C 23.0

Start Delay Please Wait

12:22 26.1C ESTT. water OUT: C 23.0

Switching Off Please Wait


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INFORMATION DISPLAYED WITH THE UNIT RUNNING

STATUS SCREEN

When the unit is running, the STATUS SCREEN appears on the display featuring 6 active fields:

A

C

B

D E F

A. Current time (only in units featuring a clock card), ambient temperature, ambient humidity (only with humidity sensor);

B. Functions in progress; the following messages are given depending on work conditions: "COOLING","HEATING","RECOVERY HEAT"; PUMP-DOWN CIRC. 1, PUMP-DOWN CIRC. 2,PUMP-DOWN CIRC. 1-2 DEFROST CIRC.1, DEFROST CIRC.2, DEFROST CIRC.1-2; C.1 CONDENS LIMITS, C.2 CONDENS LIMITS ", "C.1-2 CONDENS

LIMITS"; C.1 EVAPOR LIMITS, C.2 EVAPOR LIMITS ", "C.1-2 EVAPOR LIMITS"; C.1 COND.LOW PRESS., C.2 COND.LOW PRESS."," C.1-2 COND.LOW

PRESS."; "C.1 DISCH.HIGH T.","C.2 DISCH.HIGH T.","C.1-2 DISCH.HIGH T." "C.1 OIL LOW P.","C.2 OIL LOW P.","C.1-2 OIL LOW P." " DRIPPING...","QUICK START"

C. Where applicable, it indicates automatic cycle operation override: MAN in operating mode with manual control; FORCE when switching on using manual forcing; WATCH when the unit enters setback mode to keep temperature

and humidity parameters within the set limits. LOWPW request for partial circuit operation to reduce power

consumption (request from digital input)

D. indicates units slave status, which can be one of the following: ON : to ON/OFF key on user terminal REMOTE: to a remote contact; SUPERV.: to a Supervisor; CYCLE: to automatic cycle inverting standard units and standby units; TIME: to a programme for operation based on time bands.

E. indicates trouble status, which can be one of the following: ALARM: when there is an alarm; "SERV": when a meter totalling hours of operation exceeds the threshold.

F. indicates the unit, identified with "LAN 01", "LAN 02", . when a number of units are connected in a LAN and their operating status is displayed on a shared terminal.

In this latter case, pressing keys and P

at the same time allows you to skip to the next unit in the order they have been addressed in.

P

P

12:22 26.1C ESTCOOLING

LAN 02

12:22 26.1C EST COOLING

LAN 01


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SWITCH ON/OFF USING MANUAL OVERRIDE

A unit switched on or off respectively can be stopped or started manually using one of the automatic operation devices: Remote ON/OFF contact; Supervision system; Automatic inversion of unit on standby; Automatic mode based on time bands.

When the ON

OFF button is pressed, form 190 automatically appears on the display

indicating, where applicable, that automatic operation has been overridden. To call up the subroutine, enter the digits making up the password to enter SETTINGS level (the password is contained in the envelope supplied with this manual) and press the key.

IMPORTANT NOTE: after an incorrect password has been entered three times, an alarm state is activated and logged (see section entitled "CONSULTING ALARMS").

ON

OFF

(screen 190)

MANUAL OVERRIDE PROCEDURE If the unit is running subsequent to a command from one of the automatic devices, form 200 is called up. If the unit is idle subsequent to a command from one of the automatic devices, form 201 is called up.

The second line () features the description of the device the unit is slaved to: REMOTE ON/OFF; SUPERVISOR; STAND-BY CYCLE; TIME PROGRAMME .

To switch the unit off or on using the override feature, simply press the ON

OFF key

again. In this case: if the unit is forced to switch off, the display reads UNIT MANUALLY OFF

PRESS ON KEY; if the unit is forced to start, the STATUS form reads FORCE.

EXITING MANUAL OVERRIDE To exit manual override, indicated in field C on the STATUS FORM with FORCE,

you will need to press the ON

OFF button and key in the password to enter

SETTINGS level. If the unit is forced to switch off, form 203 is called up. If the unit is forced to switch on, form 202 is called up. As described above, the line with the asterisk () features the description of the device the unit is slaved to.

Once you have exited manual override, the FORCE message disappears from the STATUS form

(screen 200)

(screen 201)

ON

OFF

(screen 203)

(screen 202)

ON

OFF

Switch-On/Off Manual Ovverdie Please Type-in

Password: _ 00000

Unit Switched On By ()

to Manually Stop Press On/Off Key

Unit Switched Off By ()

to Manually Start Press On/Off Key

Unit Manually Off: to Go Back to

() Press On/Off Key

Unit Manually On to Go Back to

() Press On/Off Key


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VIEWING UNIT STATUS The units operating parameters (temperatures, humidity, ) can be consulted by pressing the key and scrolling through the forms with the and . keys. When the consultation cycle ends, the initial STATUS FORM returns.

Press the key to go to the STATUS FORM directly.

Note: the status of compressors and circulation pumps may feature four kinds of information: 1. : device not running 2. ON : device running 3. AL : alarm 4. PD : device in pump-down state (for compressors only).

When it comes to compressors, the alarm warning may be the result of one of the three events below: - high pressure alarm - low pressure alarm - contact of compressors thermal cut-out opened

For water circulation pumps, on the other hand, the alarm warning is generated when the contact of the pumps thermal cut-out opens.


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ACCESS TO DATA IN CONSULTING OR PROGRAMMING MODE

Control parameter consulting and programming modes can be entered directly using the keys on the user terminal:

1. ACCESS IN READ-ONLY MODE: allows you to consult data, whilst you are not allowed to edit them;

2. ACCESS IN PROGRAMMING (READING AND WRITING) MODE allows you to alter stored data and entails: 2.a. pressing the key

P for a second (until you hear audible feedback);

2.b. immediately pressing one of the following keys: , , I/O

, , , ; 2.c. entering the PASSWORD contained in the sealed envelope supplied with this manual intended for the head of maintenance (see section entitled "ACCESS LEVELS").

The yellow LED associated with each key has the following function: - LED lit: access to forms in read-only mode; - LED flashing: access to forms in programming mode (when one of the membrane keys has been pressed in

sequence with the "P" key)

CONSULTATION MODE (LED on)

PROGRAMMING MODE (LED flashing)

Consultation of the counter for the unit and its devices regarding the number of compressor start-ups.

P +

Access to the reset Screen for the counters and for modification of the threshold values of the counter; access to the Screens connected to standard maintenance operations (manual override of defrosting only for heat pump).

Sequential reading of the last 100 alarm events.

P +

To call up forms to set level-2 alarms.

I/O

To consult state of cards inputs and outputs

P + I/O

To access unit configuration and manual controls.

To consult clock/calendar and time bands (only if optional clock card is fitted). P +

To call up forms containing functions related to clock card: setting of time bands for units switching on and off..

To consult set points P +

To call up forms to edit set points

To consult remote control settings P +

To call up forms to set remote commands (issued by remote control or supervisor), standby mode and LAN.


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ACCESS LEVELS

What forms appear depends on the chosen configuration (e.g.: forms relating to the hour-meter for heating elements do not appear if the unit is not fitted with said elements). User interaction with the microprocessor is based on 3 levels:

1. CONSULTING MODE consisting in displaying parameters and reading the following data: current time and date (only if system features a clock card); environmental conditions; values measured by sensors connected to system; operating parameter set points;

logged alarm events (with time and date of event only if system features a clock card).

2. OPERATING PARAMETERS PROGRAMMING MODE, via which you can edit settings for:

: thresholds for the number of hours of operation accumulated by individual components at which servicing is requested;

: alarm addressing;

: clock/calendar and time bands;

: operating parameters;

: parameters for remote controls, local area network, supervision and rotation between units.

This level is accessible with the "SETTINGS" password.

3. CONFIGURATION PARAMETERS and MANUAL CONTROL PROGRAMMING MODE, via which the units various components can be run manually (regardless of environmental conditions) and the following operations performed:

I/O

: setting unit type and configuring devices connected, editing passwords, operations on data in the microprocessors memory;

This level is only accessible by entering the "CONFIGURATIONS"/"SERVICE" password contained in the sealed envelope supplied with this instruction manual intended for the head of maintenance.


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EDITING PARAMETERS

Setting and/or configuration parameters in a subroutine (set points, differential) are edited as follows:

1. call up the forms in programming mode;

2. use the or key to select the form containing the parameter; the cursor ( _) flashes in the top left corner;

3. press the key to move the cursor onto the parameter to be edited;

4. edit the value of the parameter - whether numerical or Boolean (YES/NO) - using the or key (numerical values can only be edited within the controllers set range);

5. lastly, press the key to confirm the value.

To return to the main form, press the key. When configuring the units hardware, on the other hand,

pressing the key just once calls up the initial "Hardware Configuration" menu (Screen 180); To edit parameters on other forms, keep pressing the key until the cursor is positioned at the start of the

first line. Then press the or key to move to the desired form.

PROGRAMME VERSION

By pressing the key, you can view the version of the control programme contained in the Flash EPROM. This information is essential when you want to add a new unit to a group of units connected in a Local Area Network as all programmes of units connected with each other in a LAN must have the same version. When contacting a service centre, it is important to quote the version of the control programme contained in the Flash EPROM accurately.

(screen 135)

/

(screen 135a)

/

(screen 135b)

BREF 1602 No Pumps Comp.Bitzer R407C Mech:exp.Valve

Ver Date BIOS: 0000 00000 BOOT: 0000 00000

Program Version BIGCH 3.8/BRE

26-03-09 SCREW f 50Hz LAN: Unit n.01


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PROGRAMME IDENTIFICATION

This manual describes standard control characteristics for Chillers and Heat Pump. Some of the characteristics of special-version units might differ from those described herein.

Family Release Language Date of Version

Updating For LAN Network

BIGCH v 3.8/BRE EN 26/03/2009 LAN

#

SPECIAL FEATURES

In some programme versions, pressing the # key displays a number of special features tailored to the customers specifications. Special features, where included, may be illustrated in the APPENDIX.

P +

HOUR-METER READING AND PROGRAMMING

This part of the programme is used to determine service intervals for the units components: when the device in question exceeds the hours of operation threshold indicated, the microprocessor reports the service request by activating the alarm condition and sending the SERV message up on the main form. There are also two forms featuring the number of times the compressor starts (with the option of resetting the count). The forms give the number of hours accumulated and operation thresholds. To edit limits and/or reset the hour-meter, you must call up the subroutine in programming mode.

The functions regard the following unit components:

(screen 150)

1. Compressors; 2. Water circulation pumps; 3. Compressors starting number; P

+

4. Command manual Defrost circuit;

ACCESS TO SETTINGS

ENTER PASSWORD 00000


16 06MC0068@00B0110 15/10/2009

For each, you can:

read the accumulated number of hours of duty; set operation thresholds - setting the threshold to 0 inhibits the SERVICE

request warning; reset the hour-meter (RESET = "OK"), e.g. once the component has been

serviced and/or replaced.

Parameters can only be edited within the permissible setting ranges.

The screen 24 feature the progressive number of starts of the units compressors, with the option of resetting the count.

(screen 20a)

/

(screen 20b) /

(screen 21)

/

(screen 22)

/

(screen 23)

/

(screen 24)

/

(screen 25)

/

(screen 26)

Minimun Run Time Err Compressor 1 00000 Compressor 2 00000

PUMP 1 Tot. Run Hours 00000Alarm Limit H 00000Reset --

PUMP 2 Tot. Run Hours 00000Alarm Limit H 00000Reset --

PUMP FC Tot. Run Hours 00000Alarm Limit H 00000Reset --

Starting Number Compr.1 00000 res. Compr.2 00000 res.

Manual Defrost Circ.1 Defrost -- NoCirc.2 Defrost -- No

COMPRESSOR 1 Tot. Run Hours 00000Alarm Limit H 00000Reset --

COMPRESSOR 2 Tot. Run Hours 00000Alarm Limit H 00000Reset --


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I/O

(screen 40a)

CONSULTING INPUT AND OUTPUT STATES This part of the program, which can be called up directly by pressing the

I/O key, allows you to check the state of

the cards inputs and outputs of the two control board. The codes given on the display are the same ones used to identify components in the unit and in the relevant literature (wiring diagrams, ).

1. Digital inputs (ID1 - ID14): On-Off (Remoto) = remote On-Off contact LP1 = circuit 1 low-pressure pressure switch AP1= circuit 1 high-pressure pressure switch TH1-2 = protector breaker compressor 1 TH3-4 = protector breaker compressor 2 THPE1 = thermo protectors for the water circulation pump RSF = phase sequence relay FS = water flow-switch Heat Rec Req = start up contact of heat recovery THPES = thermo protectors for the water circulation pump Free-Cooling Change SETP. = commutation contact for the working setpoint Power Reduc. = reduction contact of the absorbed power Rem. SUM/WIN = commutation contact for SUMMER/WINTER operation I.V.LimitSw.= contact switches valve Free-Cooling Compress.1 Integral Prot. = CRIVAN compressor 1 protection

2. Analogue inputs (B1 - B8) Supplies the readings of the TEMPERATURE and PRESSURE sensors connected to the board.

3. UpCOe Expansion Analogue inputs (B1 B4) Supplies the readings of the sensors connected to the UpCOE expansion board. B1 = Rem Offset summer setpoint

I/O

(screen da 40b - 43)

A = input open C = input closed

/

(screen da 44 45)

/

(screen da 46) 4. Digital outputs (C1 - C13)

V3V1 (recup.) = 3-way valve 1 contact VIC1 = cycle inversion valve circuit 1 CPE1 = pump contacts circuit 1 CC1,CC2,CC3 = compressor contacts ETVR1 (recup.) = ECO system or liq. inject. system switch-on CPES = free-cooling pump contactor Al. type A = digital outputs of signaling alarm the type A ETF1 = circuit 1 freon solenoid valve ETVC1 (rec.) = circuit 1 condensing valve CV1R/CV1D = fan 1 contact Al. type B = digital output of signalling alarm the type B

5. Analogue output Y1 Fan 1 Signal = fan speed control; Y2 Anaout 2 = free-cooling valve contact;

/

(screen da 47 - 50)

/

(screen 51)

pCOe Expansion Board B1 Rem Offset 0000

Inlets/Outlets _Control Board 1 Control Board 2

ID1Remote On/Off C ID2 BP1 C

B1 Cond.Press.1 00.0 B2 Evap.Press.1 00.0

C1 V3V1 OFF C2 VIC1 OFF C3 CPE1 OFF

Y1 Fan 1 Signal 000 Y2 Anaout2 OFF


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INPUT/OUTPUT TABLE FOR THE TWO UPCO BOARDS

UpCO control board 1 UpCO control board 2 ID1 On/Off On-Off remote contact ID2 BP1/2 low pressure switch for circuits 1 low pressure switch for circuits 2 ID3 AP1/2 high pressure switch for circuit 1 high pressure switch for circuit 2 ID4 TH1-2 / TH3-4 thermo protector for compressor 1 thermo protector for compressor 2 ID5 Termico PE1/2 thermo protectors for the water circulation pump 1

thermo protectors for the water circulation pump 2

ID6 Not used ID7 RSF phase sequence relay ID8 FS water flow-switch ID9 Rich. Recupero/ THPES

start up contact of heat recovery / thermo protectors for pump FC

ID10 Cambio SETP. commutation contact for change setpoint ID11 Basso cons. reduction contact of the absorbed power ID12 Est/Inv rem.; FC Valvola

commutation contact for SUMMER/WINTER operation; contact switches valve Free-Cooling

ID13 Prot.Integrale Compress.1/2 CRIVAN compressor 1 protection CRIVAN compressor 2 protection

ID14 Not used

UpCO control board 1 UpCO control board 2 B1 Cond .Press.1 Cond .Press.2 B2 Evap. Press.1 Evap. Press.2 B3 Circuit 1 Discharge Temperature Circuit 2 Discharge Temperature B4 Abs.Curr Amp. compressor 1 Abs.Curr Amp. compressor 2 B5 Water T. IN Circuit 1 liquid B6 Water T. OUT Circuit 2 liquid B7 Water Tank Not used B8 External Air Temp. Not used

UpCO control board 1 UpCO control board 2 DO1 CC1 CC3 DO2 CC2 CC4 DO3 CPE1 CPE2 DO4 E1Y1 E2Y1 DO5 E1Y2 E2Y2 DO6 E1Y3 E2Y3 DO7 V3V2(recup.) / Valv.FC Int. DO8 Al. type A RAT1-2 RAC DO9 ETF1 ETF2 DO10 ETVI1(-E1) ETVI2(-E2) DO11 CV1R CV2R DO12 CV1D CV2D DO13 Al. type B ETV Drain. / Isol.Valve. DO14

UpCO control board 1 UpCO control board 2 Y1 Fan 1 Signal Fan 2 Signal Y2 Free-cooling valve contact Y3 VIC1 VIC2 Y4 E1Y4 E2Y4

UpCOE B1 Remote Offset B2 B3 B4

When a sensor is added or an optional sensor is added connected to the card, the "HARDWARE SETUP" command must be executed, which enables the card to read the inputs and outputs. Serial card and the clock card are exceptions to this rule.


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P + I/O

CONFIGURING THE UNITS DEVICES: "Hardware Config."

You enter the units configuration mode by pressing programming key P

repeatedly until you hear a short audible signal and then pressing the I/O

key (waiting no more than a few seconds). Once you have entered the password, the relevant form is called up, comprising three options: move the cursor vertically to the line you are interested in using the

key and then call up the forms by pressing the key.

(screen 180)

HARDWARE CONFIGURATION The unit control programme needs to be configured, i.e. adapted to the unit it is installed in. During this stage, you must define all elements making up the unit that the microprocessor will be required to control. This operation is generally only required when the controller is installed actually on the unit, in which case, therefore, it is performed at the factory during final testing. Nonetheless, configuration may be required as a result of later changes made to the unit. Consequently, forms concerning configuration appear in English and are intended for use by service engineers only.

(screen 160)

(screen 160)

(screen 180)

P

+ I/O

* * * * *: Enter the "SERVICE" password ("CONFIGURATION PASSWORD") to be found in the envelope supplied with this manual

SCREEN 60 - DEVICES CONNECTED TO THE UNIT Allows you to: set unit type depending on whether the unit in question is a:

- standard-version chiller - chiller for low temperatures - chiller with condensation heat recovery - heat pump - heat pump with condensation heat recovery - chiller with free cooling

select the number of pumps and modulating fan speed control.

(screen 60)

SCREEN 61 CONFIGURATION OF MODELS WITH DEVICES INSERTED Screen 61 allows setting of:

- the size of the unit - the type of compressor - the type of fans

(screen 61)

_Hardware Config. Delay Settings Manual Control EXV Parameters


Access to Configuration Menu Enter Password:

*****


00000

UNIT Type: STD Chiller Circul Pumps: 2Fan Speed Regul: Y

Unit Size: 1602 Compressor Type: Bitzer Fans Type: STD


20 06MC0068@00B0110 15/10/2009

SCREEN 62 CONFIGURATION OF SCREW COMPRESSORS OPTIONS Screen 62 in units with screw compressors allows the following options to be set: Injection of liquid for additional cooling only necessary for high levels of

compression; Eco+Subcooling to obtain an increased sub-cooling of the liquid.

(screen 62)

SCREEN 63 CONFIGURATION OF THE ELECTRONIC EXPANSION VALVE Screen 63 allows setting of:

- the type of refrigerant gas - high temperature function - the presence of the electronic expansion valve - the type of electronic expansion valve

(screen 63)

SCREEN 64 COOLING SETPOINT LIMITS Allows the minimum and maximum setpoint limits to be set.

(screen 64)

Only some of the following forms will be displayed, depending on the type of unit.

SCREEN 65 PUMP-DOWN CONFIGURATION Allows pump-down mode to be activated and procedure maximum time to be set. .

(screen 65)

SCREEN 66 FREQUENCY OF THE ELECTRIC NETWORK This Screen allows the frequency of the electric network to be set for fan operation

(screen 66)

SCREEN 67 CONFIGURATION OF FAN SET POINT Screen 67 sets the set point for fan activation when the external temperature exceeds the set value.

(screen 67)

SCREEN 68 FAN REGULATION This Screen and the ones which follow it allow the fan modulation parameters to be set on the basis of the condensing pressure: by setting the low-noise mode, the fan speed regulation is based on a ramp of 3 steps rather than 2, as illustrated in the diagrams which follow.

(screen 68)

SCREEN 69 FAN REGULATION Screen 69 allows the parameters for fan modulation to be set depending on the condensation pressure when in Chiller mode.

(screen 69)

SCREEN 70 FAN REGULATION This Screen allows the parameters relating to the 2nd fan modulation regulation step in low noise mode.

(screen 70)

Refrig.Circ.Option Gas Type:R407C HT: NoEXV valves: No

Not used

Screw Compressors Option:

Liquid Injection

Cool.SetPoint Limits Min Value C 06.0Max Value C 13.0

Fan Direct Set (S) On at T.ext.>C 00.0

Pump Down Config. Enable: YMax. Time s 20

Fan Speed Setting Mains Frequency Hz50

Fan Speed Setting Low Noise Mode NMin. speed % 12Max. speed % 100

Fan Speed Reg. (S) On: 00C Off: 00CRamp begin. 00CRamp ending 00C

Fan Speed Reg. (S) LowNoise (High Ramp)Ramp2 begin. 00CRamp2 ending 00C


06MC0068@00B0110 15/10/2009

21

SCREEN 71 FAN REGULATION Screen 71 allows the parameters for fan modulation to be set depending on the condensation pressure in heat pump mode.

(screen 71)

SCREEN 72 MAXIMUM SPEED SETPOINT OF FANS IN FC MODE Screen 72 in the event of total free-cooling, allows the maximum fan speed to be set.

(screen 72)

SCREEN 73 SETPOINT FREE-COOLING ACTIVATION In free-cooling units, this Screen appears which enables the activation delta T to be set. When the external air temperature is lower than the inlet water temperature, the unit enters free-cooling mode: the water circulation pump activates by means of the free-cooling coil and the compressor steps change in order to increase the efficiency of the air-water exchanger.

(screen 73)

SCREEN 74 FREE-COOLING ACTIVATION WITH UNIT IN STAND-BY This Screen allows the intelligent free-cooling management to be activated.

(screen 74)

FC Parameters Max Speed Setting

Total FC Mode % 000

Fan Off Fan On Ramp1 begin Ramp1 end Ramp2 begin Ramp2 end Press. Cond.

Min. Vel.

Max. Vel.

100%

Modulating control in low-noise mode Fan Speed

Fan Off Fan Off Ramp Begin Ramp End Press Cond.

Min. Vel.

100%

Fan Speed Standard modulating control

Fan Speed Reg. (W) On: 00C Off: 00CRamp begin. 00CRamp ending 00C

FC Parameters DT Water IN-Ambient SetPoint C 05.0 FC Mode: Standard

FC on Stand-by Unit (Hydr.Connected) Enabled: N


22 06MC0068@00B0110 15/10/2009

In the diagram shown below, an example is shown where unit 1 is in stand-by and units 2 and 3 are running and connected with intelligent free-cooling. If the external temperature is able to activate free-cooling, the control system of the units running controls the start-up of the fans of the unit in stand-by (1) and the start-up of the free-cooling pump (C) of the units which are running (2 and 3). In this way the water is sent to all of the available free-cooling coils.

A : Main onboard pump B : Free-cooling coil C : Free-cooling pump D : Evaporator

E : Non return valve

: Supplied by Manufacturer

SCREEN 75 ANTI-FREEZE This Screen gives the choice of activating the circulation pump or not through the free-cooling coils in anti-freeze operation. If this function is activated in the stand-by unit, the FC pump is switched on as soon as the external temperature falls below 1,0C; it turns off when it rises above 3,0C. N.B.: Only a correct mix of glycol ensures that the coils do not freeze if the external temperature falls below zero: the function indicated cannot guarantee the integrity of the coil, above all in freezing temperatures.

(screen 75)

SCREEN 76 FREE-COOLING ISOLATION VALVE Screen 76 allows operation of the water isolation valve of the Free-Cooling circuit to be activated. Complete opening is controlled by means of the limit switch or time, following which the FC pump is activated.

(screen 76)

SCREEN 77 REGULATION OF THE AMPEROMETRIC SENSOR READING RANGE Screen 77 allows the range of readings of the compressors amperometric sensor to be activated and set.

(screen 77)

SCREEN 78 MAXIMUM ABSORBED CURRENT REGULATION Screen 78 allows the maximum absorbed current threshold of the compressor above which the cooling capacity is reduced to be set.

(screen 78)

Antifreeze Function FC Pump Activation

On Stand-by: N

Comp.Curr.Sensor Max. Current Abs.

000A

Comp.Curr.Sensor: N Range Begin A 000 Range End A 000 Multipl. Fact 1

Control of Motorised Isolating Valve: No CtrlMode: LimitSwitch


06MC0068@00B0110 15/10/2009

23

SCREEN 79 READING RANGE REGULATION Screen 79 allows the reading range of the high pressure transducer to be set.

(screen 79)

SCREEN 80 READING RANGE REGULATION Screen 80 allows the reading range of the low pressure transducer to be set.

(screen 80)

SCREEN 81-86 SENSOR ADJUSTMENT Screen 81 and the following Screens allow the temperature sensors which can be found in the unit to be adjusted (read value), when there is a difference between the value measured by the probe and the actual temperature, measured by a precision instrument.

(screen 81-86)

SCREEN 87 MONITORING OF THE REFRIGERANT LOAD Screen 87 allows the Subcooling Setting to monitor the refrigerant load in the cooling circuit to be set.

(screen 87)

SCREEN 88 REMOTE SETPOINT Screen 88 allows the relative control parameters of the remote modulating control of the unit operating values to be set. A high-precision (1/1000) 20Kohm resistor must be connected in series to terminal B1 the UpCOE board. Next, apply the 0-10V signal referred to the GND terminal (both terminals are located on the control card). The zero value is adjusted automatically using the Hardware setup function.

(screen 88)

SCREEN 89 HEAT RECOVERY Screen 89 allows the maximum condensation temperature limit to be set above that which is prevented by the heat recovery.

(screen 89)

SCREEN 90 OPTIONAL REMOTE SETPOINT Screen 90 allows changing of the optional summer setpoint on the other units connected by means of the LAN network to be activated.

(screen 90)

SCREEN 91 QUICKSTART Screen 91 allows the QuickStart function to be activated. If, following a return of supply (Power ON) the temperature of the water is above the summer SetP.+ the programmed setting, the compressors will start-up in approx. 3 minutes.

(screen 91)

Heat Recovery Cond. Pressure Limit

00C

High Press Sensor Range Begin kPa 0000Range End kPa 0000

Emergency Recovery Enable: No Activ.At Power ON IF Twout>SetP+C 00.0

Wat.OUT Summer Reg. Opt SetP. by LAN: N

Refr.Charge Monitor Set SubCool. C 00.0

Circ.1 Circ.2 00.0 -- 00.0 --

Low Press Sensor Range Begin kPa 0000Range End kPa 0000

Offset Adj. Cond. 1 Temp Sensor

Read Value C 00.0Adjustement 00.0

Set Point Remote Offset (positive) YZero Adj. = mV 00010 V Signal = C 00.0


24 06MC0068@00B0110 15/10/2009

SCREEN 92 BUZZER ACTIVATION TIME Screen 92 allows the maximum activation time of the buzzer activation when an alarm is active to be set.

(screen 92)

SCREEN 93 SETTING THE ACCESS PASSWORD Screen 93 allows the access password to be set: - At the settings ("SETTINGS" password). See paragraph "ACCESS LEVEL",

point 2.; - At the configuration ("CONFIGURATIONS" password or "SERVICE"

password). See paragraph "ACCESS LEVEL, point 3.

(screen 93)

Since access to the SERVICE menu is not granted unless you know the relevant password, we recommend you write the new password down before changing the existing one.

Screen 94, allows the data contained in the microprocessors EEPROM to be altered.

PROGRAMME SETUP. This operation is performed automatically if the programme is replaced. It may prove useful if you find data (setpoints, configurations etc.) are contaminated as it allows you to clear the memory (including data concerning the units HARDWARE configuration): all setpoints are automatically restored to their respective factory settings (see section entitled "DEFAULT VALUES"). Following this operation, the controller must be reconfigured and you will need to adjust any setpoints that are to have a value other than the default value.

AL. PAGE CLEAR-UP. By clearing the alarm log, you erase the all alarm events stored in the memory.

HARDWARE SET-UP. Used to run an automatic procedure for detecting devices connected to the controller. This operation is useful when you want to add an option to the card, replace a sensor, or when the display features the "NC" message instead of the temperature sensors reading.

/

(maschere 94)

/

To restore factory setpoints and reset other data in the memory (except "Hardware Configuration" parameters), press keys

P and at the same time and hold them down for at least 5 seconds.

A short audible signal tells you that the operation has been performed successfully.

Alarm Buzzer Conf. Activat.Time min 05 (0=never;99=ever)

SET-UP OF PASSWORD FOR ACCESSING TO:

SETTINGS 00000 SERVICE 00000

PROGRAM SET-UP NOAL. PAGE CLEAR-UP NOHARDWARE SET UP NO

PROGRAM SET-UP SIAL. PAGE CLEAR-UP NOHARDWARE SET UP NO

Please Wait


06MC0068@00B0110 15/10/2009

25

EVAPORATOR ANTI-ICE FEATURE WITH CONTROL ON DELIVERY

Note: Needs low-pressure transducers.

The advanced feature checks for ice inside the evaporator, monitoring the delta between evaporating pressure and outlet water temperature. When ice-over conditions are detected, partial capacity operation is instantly implemented on the circuit in question, issuing a pre-alert. If the situation is repeated 4 times within the space of an hour, the antifreeze alarm is generated, which stops both circuits (operator intervention needed).

Defrost demand: Defrosting is requested and carried out with the following conditions: phase 1 : Evaporating pressure of any one circuit must reach the setback value; phase 2 : The controller immediately calculates unit efficiency at this evaporating pressure, also based on external air temperature detected by the sensor, and sets and saves the value in this condition (?T = Text-Tevap. recalculated by system with ?T referring to an Text of 5C); phase 3 : If evaporating pressure continues to stay below the setback value, the controller continues to save and recalculate efficiency every moment, comparing it with the one established before so that it can determine the decrease as a % of the value versus time; phase 4 : When the decrease in efficiency drops below the value calculated by the controller during stable operation, the defrost demand is made, though defrosting only takes place if the demand condition persists for 180 seconds if the request has been made by just one circuit;

Defrost activation: After those 180 seconds, the controller: Switches the 4-way valve or valves from heat pump back to chiller (summer mode); Switches off the compressors of any circuit not receiving the defrost command; Switches off the fans;

The end-defrost and stop-compressors request is made if condensing pressure has reached 23 bar or if defrosting has reached the maximum time of 5 minutes.

Dripping cycle activaction: phase 5 : Once the compressors are switched off, the controller checks to assess dripping mode and time:

case 1 : If Text < 5C, compressors off for 120 seconds and fans off; case 2 : If Text > 6C, compressors off for 60 seconds, fans off for 30 seconds and then on at full speed for remaining 30 seconds;

End of defrost and return to regular operation: phase 6 : When the dripping cycle ends, the controller: Switches the 4-way valve or valves from Chiller back to Heat Pump (winter mode); Switches on the compressors;

Low-power defrost Defrosting in low-power mode follows the same procedures determined by the algorithm applied during regular operation, however the option of defrosting both circuits at the same time is inhibited. (only two compressors on).Defrosting will be enabled in the circuit reaching defrost activation conditions (evaporating pressure 3.2 bar).


26 06MC0068@00B0110 15/10/2009

DELAY SETTINGS

(screen 160)

(screen 160)

P

+ I/O

* * * * *: Enter the "SERVICE" password ("CONFIGURATION PASSWORD") to be found in the envelope supplied with this manual.

(screen 180)

(screen 180)

x 1

Screen 100 concerns initial transient behaviour and gives you the option of setting: length of delay before the unit restarts after a power cut (POWER ON DELAY) -

it is required to prevent simultaneous starts in multiple installations; In LAN-connected units, a progressive start sequence (unit 1, unit 2, ) is run automatically, with 5-second intervals between one unit and the next.

initial period - from when the compressor starts - during which the low-pressure pressure switch reading is disregarded (LP-STAT DELAY). It enables the compressor to start even in a harsh climate.

length of time between the unit switching on and control starting (START TRANS.) - this is the initial period deemed necessary to give the control system time to stabilize. During this period, the FS water flow-switch reading is also disregarded. This allows the unit to start without generating the " Loss of Water Flow " alarm.

delay - from when the unit starts - before environmental condition alarms are reported (T+H Al Delay).

Screen 101 allows the anti-hunting time constant to be set to avoid excessive differences in temperature. The greater the heat inertia of the room being air-conditioned, the greater this value must be.

Screen 102 allows the water flow-switch (FS) reading parameters to be set: the first parameter is the acquisition delay for the signal issued by the flow-switch when the unit is started, whilst the second parameter is the length of the delay before the alarm, if there is one, is reported after the pump starts. Lastly, the third parameter (only displayed if there are two pumps) is the rotation time for the pumps operation (1).

The Screen 103 allows the compressor times to be set, i.e.: 1. minimum time between two starts for a single compressor; 2. minimum time each compressor stays on; 3. minimum time each compressor stays off; 4. minimum time between two consecutive starts by different compressors;

Screen 104 allows the start-up delay of the free-cooling pump during opening of the water isolation valve to be set.

(screen 100)

/

(screen 101)

/

(screen 102)

/

(screen 103)

/

(screen 104)

Free-Cooling Pump: Start Delay: s 000


Hardware Config. _Delay Settings Manual Control EXV Parameters


*****


00000

Power On Delay s 000 LP-Stat Delay s 90Start Trans. s 20Temp. Al. Delay min 15

Anti-Hunting Time Constant of Water

Temp.Control s30

FS Start Delay s 10FS Run Delay s 03Pump Changeover h 12

Compr. Timing Cycle min. s 000Run s 000 Off. s 000Between 2 Diff. s 000


06MC0068@00B0110 15/10/2009

27

MANUAL CONTROL

During regular operation, all components the unit is fitted with are managed automatically. Nonetheless, to make maintenance and adjusting work easier, or if there is an emergency, individual components can be switched on using the manual override feature, regardless of the control process.

In particular, it is possible to: switch the unit on/off in manual mode switch the compressors on/off swap the two pumps over switch on /off the FC pump control the ramp for the fans modulating control (analogue output Y1- Y2)

Anche durante il funzionamento manuale sono attivi i dispositivi di sicurezza.

To edit parameter values, you must call up the "MANUAL CONTROL" subroutine from the "HARDWARE" menu until you reach form 160 prompting you to enter the CONFIGURATION password.

(screen 160)

(screen 160)

P

+ I/O


(screen 180)

(screen 180)

x 2

AUTOMATIC / MANUAL OPERATING MODE (SCREENS 110-116)

To alter the operating mode of a component, simply move the cursor onto the relevant

line, press the or key to change from automatic ("No") to manual ("Yes") or vice versa, and confirm by pressing the key.

Via form 114, you can also set the degree that devices connected to analogue output Y1, Y2, Y3 and Y4 must open, given as a percentage.

When you use manual override to start one or more components, field D on the STATUS form reads MAN. When in manual mode, all parameter settings relating to compressors and pumps remain active (Lp/Hp; THPE 1; ..). In low-power mode, only 2 compressors can be switched on/off with the override feature (capacity reduced by 50%).

(screen 110)

/

(screen 111)

/

(screen 112)

/

(screen 113)

/

(screen 114)

/

(screen 115)

/

(screen 116)


Hardware Config. Delay Settings _Manual Control EXV Parameters


*****


00000

Manual Override Unit Start-Up NoCompressor 1 NoTime to Restart 25000

MANUAL OVERRIDE Compressor 2 NoTime to Restart 25000

MANUAL OVERRIDE PUMP 1 N PUMP 2 N Switchover P1-2 N

MANUAL OVERRIDE Fan Speed C.2 % 000 Out Ramp C.2 % 000 Ramp Y2 C.2 % 000

MANUAL OVERRIDE Fan Speed C.1 % 000 Out Ramp C.1 % 000 Ramp Y1 C.1 % 000

MANUAL OVERRIDE FAN SPEED % 000 OUT RAMP % 000 RAMP %:Y1 000 Y2 000

MANUAL OVERRIDE Free-Cooling Pump N


28 06MC0068@00B0110 15/10/2009

EXV PARAMETERS

This part of the programme will only be visible if the electronic expansion valve is configured in Screen 63 of the configuration parameters Hardware Settings.

(screen 160)

(screen 160)

P

+ I/O


(screen 180)

(screen 180)

(screen 210)

x 3

The screens shown here allow the read only data and some operating parameters of the electronic expansion valve on circuit 1 to be displayed. The screens are the same for the valve on circuit 2, but it is necessary to enter the screen dedicated to Circuit 2 Valves.

(screen 211)

/

(screen 212)

/

(screen 213)

/

(screen 214)

/

(screen 215)

C.1 MANUAL CONTROL Opening steps 0000Mode Aut

PROBES OFFSET ADJ. C.1 Suction Temp.

Read Value bar 00.0Adjustment bar 00.0

PROBES OFFSET ADJ. C.1 Evap. Pressure

Read Value bar 00.0Adjustment bar 00.0

Suct. Temp. C 00.0SuperHeat C 00.0SSH Set C 00.0FW vers.HW:000 SW:000

Capacity req. % 000 Opening steps n 0000 Evap. Press. bar 00.0 Evap. Temp. C 00.0

EXV Work. Param. _Circuit 1 Values Circuit 2 Values Settings


Hardware Config. Delay Settings Manual Control _EXV Parameters


*****


00000


06MC0068@00B0110 15/10/2009

29

(screen 180)

(screen 180)

(screen 210)

x 3

x 2

Screen 230 allows the type of electronic expansion valve to be set. /

(screen 230)

Screen 231 allows the subcooling temperature to be set in the various operating modes. /

(screen 231)

Screen 232 allows the Proportional Gain to be set in the various operating modes. /

(screen 232)

Screen 233 allows the set point of the Integral Time of the various operating modes to be set. /

(screen 233)

Screen 234 allows the set point of the Derivative time and the maximum suction temperature to be set. /

(screen 234)

Screen 235 allows the maximum number of opening steps and the set point of the neutral band of the subcooling. /

(screen 235)

Screen 236 allows the relationship in % of the power of the electronic expansion valve and the cooling circuit to be set where it has been inserted in the various operating modes described.

/

(screen 236)

Derivat. Time s 01.5 (Auto: 01.5)Max Suct. T. C 30.0 (Auto: 01.5)

Circ./EXV Ratio Chiller Mode 080 HP Mode 040 Defrost Mode 000

Overclos. Steps 3000

SSH Dead Zone C 0.0 (Auto: 0.0)

Integr. Time (A. s 030)Chiller Mode s 028Heating Mode s 028Defrost Mode s 035

Prop. Gain (Auto 28.0)Chiller Mode 35.0Heating Mode 13.0Defrost Mode 19.0

SSH Set (Auto: 07.0)Chiller Mode C 05.0Heating Mode C 05.0Defrost Mode C 06.0

EXV Driver Set Valve: SEI50-SEH175 Refriger. Gas: R407C

EXV Work. Param. Circuit 1 Values Circuit 2 Values _Settings


Hardware Config. Delay Settings Manual Control _EXV Parameters


30 06MC0068@00B0110 15/10/2009

Screen 237-238 allows the limits of low subcooling to be set: integral time and temperature in the various operating modes.

/

(screen 237)

/

(screen 238)

Screen 239 allows the setpoints of the MOP and LOP to be set in chiller mode. /

(screen 239)

Screen 240 allows the setpoints of the MOP, LOP and kP factor to be set in heat pump mode. /

(screen 240)

Screen 241 allows the setpoints of the MOP and LOP to be set in defrost mode. /

(screen 241)

Screen 242 allows the start up delay of the MOP and the integral time to be set. /

(screen 242)

Screen 243 allows the integral time of the LOP to be set. /

(screen 243)

Screen 244 allows the start and finish of the range of the evaporating pressure sensor to be set.

/

(screen 244)

Evap. Press. Sensor Range Begin. bar -01.0Range End bar 09.0

LOP PROTECTION Integr. Time s 01.5 (Auto: 01.5)

MOP Start Up Dly s 030 (Auto: 060)Integr. Time s 04.0 (Auto: 02.5)

Defrost Mode MOP Set C 00.0LOP Set C 00.0

Heating Mode MOP Set C 00.0LOP Set C 00.0Dynamic kP factor NO

Chiller Mode MOP Set C 15.0LOP Set C 00.0

SSH Low Limit Integr. time s 02.0

(Auto: 01.0)

SSH LowL. (Auto: 02.5)Chiller Mode C 00.1Heating Mode C 00.1Defrost Mode C 00.1


06MC0068@00B0110 15/10/2009

31

Screen 245 allows the delay time regarding the activation of the following parameter alarms to be set : Low subcooling, high suction temperature, LOP and MOP.

/

(screen 245)

Screen 246 allows the delay time regarding the activation of the Pressure sensor failure to be set for the compressor start-up and during normal operation. /

(screen 246)

ALARM DELAY (s) Press. Probe Failure:

At Compr. Start. 000At Normal Working 00

ALARM DELAY (s) Low SSH 0120High Suct. T. 0000LOP 0000 MOP 0000


32 06MC0068@00B0110 15/10/2009

P +

UNITS REMOTE CONTROL

As an alternative, the unit can be started and stopped by means of: 1. a remote contact (or "remote control"); 2. a "supervision system" connected to the microprocessor with a serial cable. The microprocessor nonetheless retains control of the units resources.

ON/OFF VIA REMOTE CONTACT: the closing of a remote contact is responsible for starting the unit. The N.O. contact is voltage-free and connected to the master card (see wiring diagram). In units with a standard control programme, digital input 1 is the one specifically used for the on/off contact. SUPERVISION SYSTEM: a supervision system exchanges data via a serial cable with the units master card, which is controlled and monitored from a remote location. An optional Serial Card is available for this purpose, used to enable optoisolated interfacing with an RS-485 network for data transfer (see manuals for Supervision Systems).

(screen 150)

P

+

The Screen 140 you can establish whether the unit is slaved to a remote control. More specifically, you can set:

the remote on/off command via clean contact (I/O via Contact); the remote on/off command from a supervision system by means of RS-485

serial line (I/O via Serial). Being mutually exclusive, if the setting is "I/O via Serial Yes" , the "I/O via Contact" option is automatically disabled.

Moreover, with Screen 140 it is possible to set (only in heat pumps) the activation of the SUMMER/WINTER changeover remotely by means of a contact connected to the digital input 12 (see the electrical diagram attached to the unit).

(screen 140)

SETTING TRANSMISSION PARAMETERS FOR SUPERVISION Screen 141 allows the basic parameters to be set (first three lines) for switching via supervision, i.e.

1. serial address of the unit connected to the serial supervision network (must match serial address set in supervision programme);

2. data transfer rate (Ser. speed): 1200, 2400, 4800, 9600 and 19200 for RS-485.

3. protocol type (standard or Modbus).

In addition, the fourth line (should the unit be ready for connection in a Local Area Network) is for setting the number of units connected in the LAN. Remember that to prepare the unit for connection in a LAN, it must be assigned a LAN address other than 0 as indicated in the relevant LAN guide.

(screen 141)

Access to Settings

Enter Password: 00000

I/O via Contact N I/O via Serial N S/W via Contact Y

Serial Addr. : 001 Serial Speed: 1200 Protocol : Standard LAN :Unit Number 01


06MC0068@00B0110 15/10/2009

33

UNIT IN LOCAL AREA NETWORK (LAN)

Screen 142 concerns parameters for automatic rotation between running units and standby units. Via said form, you can determine: whether to activate this management feature (Yes/No). When automatic rotation

is enabled, you have to press the ON

OFF key on the unit with the lowest address in

the network. automatic cycle time between one inversion and the next (CYCLE TIME) - if it

has the value zero (" 0 "), the controller runs a test, rotating units at two-minute intervals.

the number of units on standby (Num. UNIT STAND-BY).

Automatic rotation can be executed: on a time basis (based on the above-mentioned cycle-time); subsequent to a level-2 alarm, i.e. subsequent to an alarm for which AR or BR

has been set in the alarm addressing forms (see relevant section herein).

Screen 143 allows the unit operating in rotation to be switched-off, only when the reserve unit has activated its own water circulation pump.

Screen 144, which is only seen if the local network is configured, allows the temperature regulation to be set in three different ways: - Independently: the unit independently controls the water temperature

regulation; - Connected: the unit control carries out the water temperature control by

calculating the average temperature of the units which are operating. - Cascading: the control carries out an off-set on the regulation set point

according to the units connected in the network therefore allowing the units to be switched on in succession. Each unit maintains its own regulation timings.

Screen 145, which is only displayed if the local area network is configured, allows the unit operation to be managed with the mean temperature value measured in the room or with the "local" value measured just by the sensor inside the unit: - Mode: Local Unit control is based on temperature and humidity values

detected by sensors on the actual air-conditioner. - Mode: Media Unit control is based on mean temperature and humidity

values detected by sensors on active units connected in the local area network. If the difference between the mean value and its own sensor reading exceeds the "MEDIA/LOC.DIFF." value (default setting 2C), the controller automatically switches from "MEAN" mode to "LOCAL" mode.

/

(screen 142)

/

(screen 143)

/

(screen 144)

/

(screen 145)

Run. Unit in Rotat. Switching OFF After Switch. ON Stand-by Enabled: N

Autom. Switch-over on Std-by Unit N Cycle Time h 168 N. Stand-by units N 1

Reg.Step Calling Mode:

Standalone

Usage of. Tamp. values Model: local-mean Aut.Changeover Mean/Loc.diff. C 2.0


34 06MC0068@00B0110 15/10/2009

P +

WORKING PARAMETERS

All variables are factory set to enable the controller to work correctly.

Setpoints and other setting parameters can be consulted by pressing the key (no parameter editing permitted in this access mode). To edit values, you will need to enter programming mode and enter the "SETTINGS" password (Screen 150).

(screen 150)

P

+

COOLING SETPOINT (SCREEN 120) No settings can be made to Screen 120. It gives the delivery water temperature setpoint to which the unit is referring for control purposes. The third and fourth line feature a message, where applicable, indicating the origin of the setpoint value when it deviates from the standard setting: - Compens. T.ext.: indicates that the setpoint given on the second line is

calculated based on external temperature (based on parameters set in the forms described further on);

- SetPoint OpT.: indicates that the second setpoint is active by virtue of the contact at digital input 10 switching;

- Setback Mode SetP.: indicates that the setback mode setpoint is active; - Active SetP.: indicates that the setpoint is calculated based on the offset read

by analogue input 4.

COOLING SETPOINT (SCREEN 121) Screen 121 allows the main cooling setpoint to be set and, where applicable, the second setpoint is activated when a contact connected to digital input 10 switches.

HEAT PUMP SETPOINT (SCREEN 122) Screen 122 only allows the water temperature setpoint in winter mode to be set, i.e. when the unit is working as a heat pump (hence this form only appears if the unit is a heat pump).

(screen 120)

/

(screen 121)

/

(screen 122)

SUMMER COMPENSATION (SCREEN 123) Screen 123 allows summer compensation to be set for the cooling setpoint depending on external temperature based on a ramp whose coordinates (of the two angular points P1 and P2) must be entered here. Summer setpoint P2

P1 External Temp.

/

(screen 123)

Access to Settings


Water OUT Regul. Active SetP. C 07.0 Mode:

Ext.Temp.Compens.

Wat.Out Summer Reg. Std.SetP. C 00.0 OptSetP. C 00.0 Max.Isteresi C 00.0

Wat.Out Winter Reg. Set. Point C 00.0 Max. Hysteresi C 00.0

Set Point Compens.: NO Summ.SetP. Ext.T P1 00.0 C to 00.0 C P2 00.0 C to 00.0 C


06MC0068@00B0110 15/10/2009

35

WINTER COMPENSATION (SCREEN 124) Screen 124 allows the winter compensation parameters to be set, i.e. heat pump setpoint compensation depending on external temperature.

ALARM THRESHOLDS (SCREEN 125 and 126) Screen 125 allows the inlet water temperature alarm thresholds to be set. If the unit is in its heat pump version, the second line reads Water Inlet Summer Temperature to distinguish summer mode thresholds from winter mode ones, which can be set on the Screen 126.

/

(screen 124)

/

(screen 125)

/

(screen 126)

SETBACK MODE

Setback mode, which can be activated or deactivated via the keypad, consists in starting the unit automatically when it is idle - but powered - based on the setpoint settable for this operating mode. Basically, setback mode is activated to ensure that environmental conditions are regulated - though in a wider range - even when the system is off. Hence its activation does not depend on signals coming from remote control systems, which it takes priority over. Unit start as a result of setback mode is not considered an alarm condition.

BASIC PARAMETERS (SCREEN 127-127a) Screen 127 (127a if unit is in its heat pump version) allows the setback mode to be enabled/disabled as well as the setpoint for operation whilst said mode is enabled.

CYCLIC PUMP START (SCREEN 128) Screen 128 determines operation of the fan water circulation pump whilst setback mode is enabled for a period of 120 seconds. If set to "Yes", the pump is switched on cyclically based on the set time interval.

P +

(screen 127)

(screen 127a)

/

(screen 128)

Winter Compens. Win.SetP. Ext.T. P1 00.0 C to 00.0 C P2 00.0 C to 00.0 C

Alarm Thresholds Water INLET Temp

Min. Temp. C 00.0Max. Temp. C 00.0

Alarm Thresholds Winter INLET Temp

Min. Temp. C 00.0Max. Temp. C 00.0

Setback Mode : Y SetPoint C 00.0

Setback Mode : Y Summer SetP. C 00.0 Winter SetP. C 00.0

Setback Mode Cyclical Start

Of Pump (s120) YesInterval min. min 00


36 06MC0068@00B0110 15/10/2009

LOW POWER

LOW POWER (SCREEN 129) Screen 129 allows the low absorption function of the compressors power supply to be set so reducing the cooling capacity. It is possible to commute between four different options:

1. OFF = always disabled 2. ON = always enabled 3. ON from Digital Contact = enabled from digital contact ID11 (see electrical

screen) 4. ON from Supervision = enabled by means of BMS (see variables list)

Max absorption: determines the maximum threshold current not to be exceeded when the Low Power function is active.

/

(screen 129)

SUMMER / WINTER SWITCH OVER

In the heat pump units it is possible to set the operating season Summer/Winter alternatively by means of three possibilities:

1. from the user terminal keyboard; 2. from the digital input ID12 (see electrical diagram attached to the unit); 3. from the supervision system;

FROM THE USER TERMINAL KEYBOARD (SCREEN 18) Screen 18 (if the unit is in heat pump mode) allows the Summer/Winter switching to be set. In this case, it is necessary to turn the unit off using the ON/OFF key and wait for the unit to stop. From the main Screen press the Up or Down key until Screen 18 is reached. To change the mode press the ENTER key, change the value by using the UP or DOWN key and press ENTER to confirm. Start up the unit again and the winter setpoint will automatically be used.

(screen 3)

/

(screen 18)

(screen 18)

/

(screen 18)

(screen 18)

LowPower Function. OFF

Max Current: A 000

12:00 MO 01/01/07Water OUT T. C 10.0

To Start Unit Press On Key

_Mode: SUMMER

To Change Press Enter Key

Mode: SUMMER


Mode: WINTER


_Mode: WINTER



06MC0068@00B0110 15/10/2009

37

FROM DIGITAL INPUT 12 (SCREEN 140) Screen 140 (if the unit is in heat pump mode) allows the Summer/Winter switching to be set. (N.O. Summer; N.C. Winter) Screen 18 will display the operating mode from the remote control.

P +

(screen 140)

/

(screen 18)

FROM THE SUPERVISION SYSTEM Consulting the supervision manual is advised, along with the list of variables.

/

(screen 18)

I/O DA CONTATTO NOI/O VIA SERIALE NOE/I DA CONTATTO SI

Mode: SUMMER

(remote control)

Mode: SUMMER

(remote control)


38 06MC0068@00B0110 15/10/2009

P +

CLOCK-CALENDAR - TIME BANDS

If the microprocessor features the optional clock card, the STATUS Screen displays the date, current time and day of the week. The following actions can also be associated with a particular time: unit starting and stopping based on a timer programme; logging of alarm events. Current time and date are set, and time bands programmed, by means of the following forms:

P

+

(screen 150)

(screen 250)

CLOCK-CALENDAR SETUP By means of the Screen 250, you can set: time of day (hours, minutes); date (day, month, year); classification of the day of the week.

SETTING TIME BANDS (SCREEN 252-255) Using this device, you can set times (time bands) for automatic unit starting and stopping, achieving: up to 3 on-off cycles a day, each with a start and stop time; a weekly cycle with different daily cycles split into weekdays N (default setting

from Monday to Friday), Saturdays P (default setting for Saturday, though it can be used for half-days etc.), and Sundays and holidays F (default setting for Sunday).

Entering Yes on Screen 252 activates the time band device. Field D on the STATUS form will read HOUR. By using Screens 253, 254 and 255 you can programme time cycles - featuring a start time (ON) and a stop time (OFF) - for normal days (N), Saturdays and pre-holidays (P), and Sundays and holidays (H). With the unit idle, the display reads UNIT SWITCHED OFF RESTART AT with the time and day of the week programmed for the next start. If you enter 00:00 in both the ON and OFF fields, the cycle is disregarded.

CLASSIFICATION OF DAYS OF THE WEEK (SCREEN 251) This is automatic, though it can be edited starting from Screen 251; the Screen is called up when the time band device is activated (Screen 252 - "ENABLE:" YES.) The current day is identified - for the purpose of time band programming - as: - N: normal or week day; - P: Saturday or half-day; - F: Sunday or holiday;

If you need to change this classification, press the key to call up the Screen

251a, or press the key.

/

(screen 252)

/

(screen 253)

/

(screen 254)

/

(screen 255)

(screen 251)

Clock/Calendar Hours/Minutes 12:24 DD/MM/YY 14/02/01 Weekday WE

Access to Settings


Unit On-Off Cycle (Max 3 On-Off Daily

Cycles) Enable Y

Regular Day ON 08:15 OFF 12:30ON 13:15 OFF 18:20ON 20:00 OFF 22:30

Saturday/Pre-Holiday ON 08:30 OFF 14:00 ON 00:00 OFF 00:00 ON 00:00 OFF 00:00

Sunday and Holiday ON 00:00 OFF 00:00ON 00:00 OFF 00:00ON 00:00 OFF 00:00

Programmed Cycle: N (Normal Day)

To Change Press Key ENTER


06MC0068@00B0110 15/10/2009

39

WEEKDAY PROGRAMME OVERRIDE (SCREEN 251a) Unless otherwise programmed, days are classified in the microprocessors memory as follows: weekdays (N) all days during the week from Monday to Friday; Saturdays or pre-holidays (P); Sundays and holidays (H) for Sunday Screen 251a (called up from the Screen 251 by pressing the ) allows the classification of the coming seven days, which will appear on the first line, today included to be changed.

The stored classification (N or P or H) appears under each day and can be edited by pressing key or until you reach the desired classification. Pressing

the key then confirms the classification entered and you are moved on to the next day. If classification differs from the standard setting (override), the > symbol automatically appears in front of it. Time bands adopted when overriding will be the same as the ones for days with that classification.

(screen 251)

(screen 251a)

The override condition is cancelled automatically once the day for which it was activated is over.

To exit forms regarding the clock-calendar and time bands, press the key.

PROGRAM. MO 13/10/97MO TU WE TH FR SA SU

N N >H N >P >H H N=NORM P=PREH. H=HOLY.

Programmed Cycle: N (Normal Day)

To Change Press Key ENTER


40 06MC0068@00B0110 15/10/2009

P +

ALARM ADDRESSING

The following section ("CONSULTING ALARMS") describes possible alarm events that may be detected by the controller, specifying the action taken by the controller for each.

Via the forms in this section, you can assign a type to each of the alarms listed, i.e.: type A: alarm is featured on the relay of

digital output 8; type AR: alarm is featured on the relay of

digital output 8 and causes the standby unit to take over;

type B: alarm is featured on the relay of digital output 13;

type BR: alarm is featured on the relay of digital output 13 and causes the standby unit to take over.

P +

(screen 150)

(screen 30)

/

(screen 31)

/

(screen 32)

/

(screen 33)

/

(screen 34)

/

(screen 35)

/

(screen 36)

/

(screen 37)

/

(screen 38)

/

(screen 39)

Compr.Hi.Current A

High Water Temp. B Low Water Temp. B Antifreeze-Preal. B Antifreeze-Lock AR

Oil Pressure B Oil Press.Serious B Err min ON Compr B EXV Valve Failure AR

High Pressure ARCompress. Overload ARLow Pressure BLow Press.Serious AR

Water Flow AR Pump Overload BFC Pump Overload BIsol.Valve Fail. B

Alarm Selection: A = relay 8 AR = relay 8 + rotat. B/BR = relay 13

Access to Settings


Water IN Sensor B Water OUT Sensor AR Ext. Air Sensor B

Heat Recovery: - Not Possible B- Locked B

Water Tank Sensor B Cond.Press.Sensor. A Evap.Press.Sensor. B EEPROM B

Pumps Run Hours --Compr. Run Hours --Wrong Password --Phases Sequence A


06MC0068@00B0110 15/10/2009

41

READING OF ALARMS

ACTIVE ALARMS

Pressing the

key silences the alarm buzzer and the description of the alarm is shown on the display.

If the cause of the alarm has been eliminated, the last alarm message can be reset by holding down the

key for a few seconds. If the cause of the alarm has not been eliminated, the audible buzzer warning is switched on again.

ALARM LOG SEQUENCE To be able to reconstruct the sequence in which alarms occurred, the microprocessor keeps the last 100 events in

its memory. All logged alarms can be consulted in series by pressing the key while you are on the STATUS Screen.

Events where the hour-meter threshold is exceeded ("SERV.") are not logged and hence not displayed. In the sequence, the first event displayed is actually the last alarm encountered. In control circuits featuring a clock card (optional extra), the data and time the alarm occurred are associated with each alarm event logged.

DESCRIPTION OF ALARM EVENTS All possible alarm messages that can be displayed on the user terminal are given below. General information on solving the problem is given on the last two lines of the display for alarms that are still active only (i.e. not for alarms that have been logged).

MAINS PHASE SEQUENCE ERROR OR LIMITS EXCEEDED ALARMS The compressor must rotate the planned way or efficiency will be lost. The mains phase sequence may call for a direction of rotation other than the envisaged one in units with a three-phase power supply only. In this case, as soon as the unit is powered, the microprocessor immediately goes into an alarm state, impeding any other manoeuvre. In this case, disconnect the units power supply and swap two of the supply phases over.

Alarm reporting no water flow from flow-switch

Alarm activated before starting up the pump. The control carried out a check of the state of the flow switch contact before the pumps start; if the contact remains closed, the control interprets it as an anomaly.

Circuit 1 Antifreeze pre-alert. Reporting the same for Circuit 2.

Alarm Loss of Water Flow Check Hydraulic

Circuit

12:30 31/05/00 AL01Loss of Water Flow Check Hydraulic

Circuit

Alarm Mains Phase Error/ Volt.Out of Limit

(Aut. Reset)

PreAlarm Circ.1 Antifreeze Check Evap.Cleaning /Refrigerant Charge

Alarm Flowswitch Failure Check Functionality/ Elctr.Connections

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