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Transcript of k-uniflair-mp20eng
mP20DX - DX/S - ES - TC - CW
MICROPROCESSOR CONTROL FOR DIRECT EXPANSIONAND CHILLED WATER UNITS
INSTRUCTION MANUAL
© COPYRIGHT UNIFLAIR 1999
Version: 1.4 - 06/09/1999 Pag. 27 Cod. 05MP112A1A
GB
2
1. CONTENTS
1. CONTENTS 2
2. IMPORTANT 2
3. INTRODUCTION 3
4. CHARACTERISTICS 3
4.1. Basic circuit 34.2. Eprom Memory 34.3. Optional circuits 44.4. User terminal 4
5. REMOTE CONTROLS 5
6. SPECIAL FUNCTIONS 6
6.1. Automatic inversion of strand-by unit 66.2. Setback function 76.3. Automatic time-band operation 76.4. Emergency function 7
7. SWITCHING ON AND PROGRAMMING 7
7.1. Connecting the user terminal and power supply 77.2. Display information with unit off 87.3. Switching the unit on and off 87.4. The STATUS screen 87.5. STATUS LOOP: visualisation of operational parame-ters
9
7.6. Keypad 97.7. Consultation and programming menus 97.8. Interaction levels 9
8. CONFIGURATION OF THE CONTROL 10
8.1. Direct expansion circuits settings 118.2. Energy saving circuits settings 118.3. Setting of the twin-cool circuits 118.4. Dehumidification and high temp. alarm settings 118.5. Setting of hot gas re-heat, external devices, humidi- 12
fier and off-set sensors8.6. Setting delay times 128.7. Remote control, supervision and stand-by manage-ment
13
8.8. Changing the password 138.9. Clearing the memory and restoring factory-set defaults 14
9. CALIBRATION AND SETTINGS 14
9.1. Room setting alarms 159.2. Setting the run hour counter alarm threshold 169.3. Setting second level alarms 16
10. CLOCK-CALENDAR - TIME BANDS 17
11. MANUAL CONTROLS 18
12. MANUAL OVERRIDE OF START-UP/STOP 19
12.1. Manual override procedure 1912.2. Exiting manual override 19
13. ALARMS 1913.1 Historical sequence of alarms 2013.2 Description of alarm events 20
14. TROUBLESHOOTING 22
15. FACTORY PRE-SETS/CALIBRATION FIELDS 23
15.1 Restoring factory pre-sets 23
DIAGRAM IN APPENDIX
LAY-OUT OF BASIC CIRCUIT - STANDARD VERSIONSCREEN FLOW CHART
2. IMPORTANT
Electronic components are sensitive to static discharges emitted by the human body. Touch anearth connection before handling any electronic component.
Take out the components (basic circuit, user terminal, EPROM) from their containers only whenready to assemble and avoid touching the electronic components.
Before undertaking any operation (connection, disconnection, external linking), always disconnectthe unit from the power supply.
3
3. INTRODUCTIONThe control system consists of a Basic Circuit containing the micro-processor , a read-only memory (EPROM) which contains the regula-tion programme, a read/write memory (RAM) for operational vari-ables, a permanent read/write memory (EEPROM) for the mainte-nance of the most important data and the pre-set parameters even inthe case of power failure; the circuit also contains the terminals forelectronic input and output connections and power supply.
The User Terminal is used for programming the control parameters(set points, differentials, alarm thresholds etc.) and the display of dataand events (reading the set points and the controlled values, functionevents and/or alarms etc.). This is also controlled by a microproces-sor equipped with an LCD display, a keypad, LEDs and alarmbuzzer).A single user terminal can be used to programme and display theparameters of more than one basic circuit; this can be done:• by linking where necessary the terminal to the appropriate unit,
through the six-way telephone cable link with an easily removableconnector
• setting up a network link of the circuits and the terminal whichcan exchange data with the pre-selected circuit.
Once programmed, the basic circuit can function automatically follow-ing the pre-set data contained in the EEPROM memory.The basic circuit can therefore be used on its own: this solution, how-ever - which does not provide any means of interface with the user forthe setting of parameters and the display of data and events - is sug-gested for units for which the programming of the functions and/or thefunctional parameters are expected to be modified very rarely - ornever - as for example in unmanned installations.
To see the date and the time and to use the subroutines linked totime (time bands, memorising the time of alarm events) the basiccircuit can be supplied with a clock circuit.
The control can be linked to a centralised supervision system; an op-tional serial board is available to this end , which makes possible theoptoisolated interface to a RS422 network for data transmission.
4. CHARACTERISTICS4.1. BASIC CIRCUIT
The basic circuit (see lay-out of the basic circuit in the appendix) inthe electrical panel of the unit is connected to the user terminal with atwo-wire half-duplex asynchronous cable with a six-way telephoneconnector; the maximum cable length for remote fitting of the userterminal is 50 metres. For longer distances a T-junction must be usedwith 6-pole shielded cable (AWG24-type with twisted pair shieldingand wires and resistance <80ohm/M) with maximum length200m.The inputs and outputs of the unit are summarised below:
OPTOISOLATED DIGITAL INPUTSDI1 Remote switch-on/switch-off inletDI2 Flow switch pressostatDI3 Clogged filter pressostatDI4 Circuit 1. low pressure-stat / phase sequence control relay /
CW units: water flow switchesDI5 Circuit 1. high pressure-statDI6 Circuit 2. low pressure-statDI7 Circuit 2. high pressure-statDI8 Electrical resistance safety thermostatDI9 Humidifier interface module (high level)DI10 Flooding detectorDI11 Smoke-fire detectorDI12 T+H room limit sensors
ANALOGUE INPUTS - NTC SENSORSAI1 Room air temperature sensorAI2 Delivery air temperature sensorAI3 Recirculating water / CW temperature sensor (NTC)AI4 External air temperature sensor (NTC)
ANALOGUE INPUTS - ACTIVE SENSORS -1÷1Vcc
AI5 Room relative humidity sensorAI6 Hot water temperature sensorAI7 Humidifier interface module B7AI8 Humidifier interface module B8
DIGITAL RELAY OUTPUTSDO1 Fan relayDO2 Compressor 1 relay / Chiller calling for dehumidification (CW
units)DO3 Compressor 2 relayDO4 Re-heat relay 1 / hot gas coilDO5 Re-heat relay 2DO6 Humidifier relay / external humidifier call-onDO7 Humidifier feed valve relayDO8 Humidifier drain valve relayDO9 Switch-over contact for control of dehumidification/coil part set
(in dehumidification/CW)DO10 Switch-over contact for 2nd level alarm signal (addressable)DO11 Switch-over contact for generic alarm signal
ANALOGUE OUTPUTS - SIGNAL 0÷10V=AO1 (DO12) Cold water valveAO2 (DO13) Hot water valve / external radiator control
4.2. EPROM MEMORYThe regulatory programme of the control system is contained in theEPROM memory on the basic circuit and identified by an alphanu-meric code.
mP20 v. 5.1 EN Microprocessor Control Software Version Language
25/06/99 SB n.1 Update SB = Base circuit SE = Expansion circuit LAN Address n. 1-5 for Base circuit n. 6-7 for Expansion circuit
4
If the EPROM is replaced, observe the following procedures:• disconnect the system from the power supply (turning off mains
power at the electrical panel) making sure that the yellow LEDpower indicator is off;
• • • • remove the EPROM from its socket using a suitable extractor,making sure that it is removed in a uniform manner, and takingspecial care not to touch the components mounted in thesocket on the circuit;
• insert the new EPROM in the correct way putting the semicircularreference mark in the position indicated in the diagram of the cir-cuit board: make sure that all the feet are aligned in their respec-tive slots before pushing the EPROM gently into the socket asshown in fig.1.
If an EPROM is replaced by one with a more recent version of thecontrol program, this automatically clears the memory. If the newEPROM has the same version of the program, then clearing thememory is not necessary. In this way the set points for each parame-ter are maintained.
REFERENCE MARK
Fig. 1
Electronic components are sensitive to static discharges emit-ted by the human body.Touch an earth connection before handling any electronic componentand/or the basic circuit.Remove the EPROM from its container only when ready to assem-ble: do not touch the metal feet.
4.3. OPTIONAL CIRCUITS
4.3.a RS422 SERIAL CIRCUIT FOR CONNECTION TO SUPERVI-SOTY/MAINTENANCE SYSTEMSNetwork transmission of data is possible through the RS422 serialcircuit (see fig 2.a.) which is inserted on the main circuit board. Theserial board has a connection socket with 9 pins.
4.3.b. CLOCK CIRCUITThis allows the user to see the date and time and is indispensable foroperating programmes linked to time (time bands and memorising ofthe time and date of the alarm event).The clock circuit (see fig 2b) is equipped with a rechargeable batterywhich can run for more than one month without recharging.
4.3.c. LAN ADDRESS CIRCUITThe LAN address circuit enables the microprocessor to be connectedto a Local Area Network (see special LAN manual).
4.3.d. CLOCK CIRCUIT/LOCAL NETWORKThere is only one connector on the mP20 circuit for either the clockboard or the LAN board. If both functions are needed then a singleCLOCK+LAN board must be fitted.
4.3.e. RS485 SERIAL CIRCUIT FOR SUPERVISION AND REMOTECONTROLFig. 2.e. shows the RS485 serial board which enables opto-isolatedinterfacing with an RS485 data transmission network This optionalboard is inserted in its own connector on the main circuit board (seecircuit layout diagram attached). Connection to the RS483 network isvia the extractable terminals on the board.
CLOCK CIRCUIT
Fig. 2b
LAN ADDRESS CIRCUIT
Fig. 2c
RS422 SERIAL CIRCUIT
Fig. 2a
1 2 3 4 5
6 7 8 9 pin 1: GNDpin 2: TX+pin 3: TX-pin 4: RX+pin 5: RX-
RS485 SERIAL CIRCUIT
Fig. 2e
JS2
M1
1 2 3
pin 1: GNDpin 2: RX+ / TX+pin 3: RX- / TX-
5
4.4. USER TERMINAL
The user terminal is equipped with:
• LCD display with 4 lines, 20 alphanumeric characters for consul-tation and programming of the system;
• LED displays showing power on (green) and alarm (red);• Alarm buzzer, which can be switched off with the appropriate key
and if necessary disconnected completely with software;• Command and programming keys.
The three buttons on the front of the panel have the following func-tions:
Turns the system on and off.The setting is memorised in order to allow automatic intelli-gent resetting. If programmed (see CONTROL CONFIGU-RATION: SETTING OF AUTO RESTART) the machine as-sumes the same state (ON/OFF) that it had before the inter-ruption of the power supply.
Switches the buzzer off and resetting the alarms.If pressed once the alarm buzzer stops; if pressed twice thealarm memory is reset and the alarm event display is can-celled.A continuing alarm state causes the signal to continue evenafter the button has been pressed.The sequence of the last 30 alarms is maintained in thememory and can be accessed with the appropriate routine.
Reads parameters and events.This displays unit status and the alarm sequence memory.
The seven membrane keys, which are accessible only when the pro-tective door is opened using the catch, have the following functions:
scrolling key for subsequent screens and verticalmovement of the cursor
key to access the selected screens and horizontalmovement of the cursor
key to increase setting values
key to decrease setting values
key to modify and accept values (Enter)
escape key: return to original screen of the currentread/write routine
Full escape key: return to STATUS screen
PROGRAMMING PANEL
UNIT ON LED
ALARM LED
LCD ALPHANUMERIC DISPLAY
PANEL OPENING CATCH
Fig. 3
6
4.4.1. REMOTE TERMINAL
An optional wall mounting kit is available for remote installation of theuser terminal, including a metal housing for the terminal.The terminal is linked to the basic circuit via the cable equipped withconnectors at both ends: insert the connector into socket A which isaccessible from the back of the container (see fig 4).
Fig. 4
A
A
Fig. 5
Wall mounting is possible by using the appropriate support box towhich the user terminal is fixed (see fig 6).The complete support of the user terminal is in turn attached to theplate and fixed to the wall with screws B (see fig 7); finally, the sup-port must be attached to the plate with the lower fixing screws C.
A
a
bc
Fig. 7a Fig. 7b
Wall plate code PAKT070X3A can be used for the remote fixing of the user terminal with a coonecting cable with plugs at both ends. (See sec-tion on Basic Circuit). The terminal is connected by inserting the plug in socket A on the back of the casing (see fig. 5).Important: the wall fixing kit for the terminal is suitable for indoor installations only. For outdoor installations a housing with an adequate IP levelof protection must be used - please contact the nearest service centre for further information.
5. REMOTE CONTROLS
The unit can be turned off and on with an external remote controlsystem. The unit ‘s resources are, however, controlled by the mi-croprocessor.The types of remote control provided for are the following:
REMOTE CONTROL: The unit is turned on by closing a potential-free remote N.O. contact linked to the base circuit (see electronicdiagram of the circuit and lay-out of the base circuit).
SUPERVISION SYSTEM: a supervision system exchanges datavia a serial cable with the basic circuit which has remote monitor-ing and control. For further details, see relevant report.
6 7
7
6. SPECIAL FUNCTIONS
6.1. AUTOMATIC INVERSION OF THE STAND-BY UNITThe microprocessor is programmed to run two units automatically, ofwhich one operates normally (the basic unit) and the other operatesin reserve (the stand-by unit), without the need for external systems.To enable this function it is bnecessaru to connect terminals 960-964(2nd level addressable alarm relay) on the first unit to terminals 20-50(remote control) on the second unit and vice versa. The terminals forthe interconnection of two units are shown on the electrical diagramssupplied with the units. The operation of more than two units re-quires connection to the local network: see the relevant technicalguide.
The management of the stand-by unit includes:• AUTOMATIC TIMED INVERSION which, at programmed inter-vals, switches between the stand-by unit and the operating unit;The time interval can be set in the “Cycle Duration”. To re-set therun hour counter which controls stand-by operation, press the
button for 5 seconds. The cycle re-set is confirmed by adouble beep.
• AUTOMATIC CALL OF THE STAND-BY UNIT if the current unitmalfunctions, including if the power fails, signalled by the generalalarm (see configuration of the controls: setting the alarms).
The stand-by unit can be set to switch on instead of the normal unitor in addition to it (see CONFIGURATION OF THE CONTROLS:MANAGEMENT OF THE STAND-BY UNIT).
The additional function is useful, for example, when the high roomtemperature alarm is activated, caused by overheating. However, ifthe electrical power supply is only sufficient for one unit, it is possibleto programme the stand-by unit to operate instead of the normal unit.
6.2. SETBACK FUNCTION
The setback function, which can be activated or de-activated usingthe keypad, consists of the automatic starting of the unit which is off,but powered, when the following room limits are exceeded:• minimum temperature• maximum temperature• minimum relative humidity• maximum relative humidity
The task of the safety cycle is to control the room conditions - al-though in a wider field - even when the unit is switched off; its
activation is not therefore conditioned by signals from any remotecontrol systems, over which it takes priority.It is possible to programme the recycled air fan to operate during thesetback function in order better to regulate the room temperature(see CONFIGURATION OF THE CONTROL, VARIOUS CONTROLPARAMETERS).The intervention of the unit caused by the setback mode is not con-sidered to be an alarm condition.
6.3. AUTOMATIC TIME BAND OPERATION
This feature - which can only be activated if the controls are equippedwith a clock circuit - allows automatic activation or deactivation of theunits to be set on a time basis (time band operation).
The following can be memorised (see CLOCK CALENDAR -TIMEBANDS):• up to three on-off cycles daily, each one with a start and end time;
• a weekly cycle distinct from the daily cycles, divided into week-days, pre-holidays (automatic for Saturdays), holidays (automaticfor Sundays)
It is possible to override the timer programme for seven successivedays to programme days of the week as pre-holidays or holidays orvice versa (e.g. Christmas or other special holidays).
6.4. EMERGENCY FUNCTION (special version)
A special version is available for emergency management.The microprocessor control can receive an external electrical signalto indicate power loss (instead of the remote ON/OFF control).
The control then stops electrical resistance function until power isrestored. This situation can be overridden manually with the userterminal.
8
7. SWITCHING ON AND PROGRAMMING
The programming of the microprocessor andthe INTERACTION (WRITING/READING ofthe functional parameters) is only possiblethrough the user terminal equipped with aLCD display linked directly to the basic unitconnected to the local network through atransmission line (see relevant technicalguide).
Once the functional parameters have beenset, the basic circuit can function independ-ently without the user terminal, which canthen be removed or used for the program-ming of other units and connected only incase of necessity (for the reading of events orto change the parameters).
In the absence of programming, the basicunit operates with the factory default settings.There follows a description of the use of theterminal for programming and reading theoperating parameters of the basic unit (seefactory settings - calibration fields).
7.1. CONNECTING THE USER TERMINAL AND POWER SUPPLY
Correctly insert the cable link (connectors)(see FEATURES - USER TERMINAL) with-out forcing the connection and turn on thepower supply. The control is activated as fol-lows:
the power supply LED on the base circuitcomes on (see LAY-OUT OF THE BASICUNIT);
• it emits a short acoustic signal;• the display shows the following message
for 10 seconds, before returning to unit offstatus (see paragraph below).
INITIALISATIONPLEASE WAIT....
9
7.2. DISPLAY INFORMATION WITH UNIT OFF
A
B
C
TO START THE UNIT 1PRESS THE ON BUTTON
WARNING: SWITCHED OFF 2BY REMOTE CONTROL!
WARNING: SWITCHED OFF 3BY SUPERVISOR!
SWITCHED OFF BY PROGRAMME 4RESTART. AT 13:15 LU
WARNING: UNIT 5STOPPED IN STAND-BY!
UNIT OVERRIDE OFF 6PRESS THE ON BUTTON
D-1
When the unit is connected to the powersupply but not on, 3 fields are active on thedisplay (see fig. D-1):A. Current time and date (only if unit is fitted
with clock circuit);B. Room temperature and (with free-cooling)
outside temperature;C. Indication of unit switched off by:
1. ON/OFF switch;2. SUPERVISION system (see REMOTE
CONTROLS: SUPERVISION SYS-TEM);
3. Automatic unit inversion cycle (seeSPECIAL FUNCTIONS: AUTOMATICINVERSION OF CURRENT/STAND-BY UNITS);
4. Timer programme - in units fitted with aclock circuit - with display of the nextstart time (see SPECIAL FUNCTIONS:AUTOMATIC TIME BAND OPERA-TION);
5. Manual override switch off (see MAN-UAL OVERRIDE FOR SWITCHINGON / OFF) .
If the unit is programmed in the SETBACKMODE (see SPECIAL FUNCTIONS: SET-BACK MODE), the following message ap-pears at regular intervals in field C:
ATTENTION: UNITIN SETBACK MODE
EXAMPLE 1: message shown on the displayin the unit equipped with a clock circuit andfree-cooling cycle turned off by the remotecontrol.
1 6 : 4 5 1 2 / 1 0 / 9 7IN : 2 3 ° C EXT: 1 5 °C
WARNING: STOPPED BYREMOTE CONTROL!
EXAMPLE 2: message on display on unitwithout clock circuit, programmed for manual
on/off switching.
TEMPERATURE: 2 3 ° CTO START THE UNIT,
PRESS 'ON'
7.3. SWITCHING THE UNIT ON AND OFFAccording to the pre-set configuration, (seeCONFIGURATION OF THE CONTROL:SETTING AUTOMATIC RESTART), the con-trol of the unit can be programmed:
LOCALLY: the unit is operated with the button; one touch switches the unit on, twotouches switches it off.In order to avoid the unit switching on and offtoo often, there is a delay between pressingthe on/off button and compressor start-up.The status of the system is memorised: ifprogrammed, when power is restored, the
unit returns to the state it had before powerwas cut and restarts if it was operating.AUTOMATICALLY: the control is configuredto enable switching the machine off and on tooccur automatically with:1. a remote control command;2. a SUPERVISION system (only in units
with serial circuit);3. programmed automatic timer (possible
only in units with clock circuit);the automatic inversion cycle of the baseunit (see SPECIAL FUNCTIONS: AUTO-
MATIC INVERSION OF BASE/STAND-BY UNITS).
If programmed in the SETBACK MODE (seeSPECIAL FUNCTIONS: SETBACK MODE),the unit starts up automatically even if thepre-set thermohygrometric limits have beenexceeded
NB. during automatic operation, the button is inactive, except when manual over-ride is activated (see SWITCHING ON/OFFMANUALLY).
7.4. THE STATUS SCREENWhen the unit is in operation, the STATUSscreen appears on the display, and has fiveactive fields (see fig D-2):A. The time (only in the units equipped with a
clock circuit), room temperature, roomhumidity (only with humidity sensors);
B. Current operation: according to the work-ing conditions, the following indicationsare provided:• COOLING• HEATING• DEHUMIDIFICATION• RE-HEATING
C. Manual override with regard to the auto-matic cycle:• “MAN“ in the operating mode with
manual commands (see MANUALCOMMANDS);
• “FORCE” if the machine is turned on bymanual override (see SWITCHINGON/OFF MANUAL OVERRIDE);
• “WATCH” when the unit enters theSETBACK MODE to maintain theTHERMOHYGROMETRIC parameterswithin the established limits (see SPE-CIAL FUNCTIONS: SETBACK MODE);
• EMERG” if the emergency function isactivated (see SPECIAL FUNCTIONS:EMERGENCY FUNCTION)
• • •
• •
A
B
C D E
MAN REMOTE ALARM
FORCE SUPERV. SERV.
WATCH CYCLE
D -2 TIME
D. Indication of the slave status of the unitwhich may be:• “REMOTE”: to a remote control (see
REMOTE CONTROLS);• “SUPERV.”: to a supervision system
(see REMOTE CONTROLS);• “CYCLE”: to an automatic inversion cy-
cle (see SPECIAL FUNCTIONS:AUTOMATIC INVERSION OF STAND-BY UNIT);
• “TIME”: to a timer programme (seeSPECIAL FUNCTIONS: AUTOMATICTIME BAND FUNCTION).
E. Indication of fault, which may be:
• “ALARM” if there is an alarm;• “SERV.” if the run hours counter
threshold is exceeded (see SERVICEALARM).
10
7.5. STATUS LOOP: VISUALISATION OF OPERATING PARAMETERSThe unit’s function parameters can be read in
sequence by pressing the button on thefront panel. At the end of the reading cyclethe STATUS display returns
Pressing the button, accessed by openingthe terminal cover, returns to the STATUSdisplay immediately.The information shown on the display is illus-trated under the STATUS panel in theSCREEN flow chart. Only information related
to the pre-selected configuration is shown.Hour and date are only shown if the clockcircuit is fitted.
7.6. KEYPADThe keypad, described in the section on theUser Terminal, is divided into two parts:A. External buttons used for current opera-
tions (switching on/off, reading parame-ters, silencing alarm buzzer, etc.);
B. Internal buttons, accessed by opening theprotective cover, used for interacting withthe system memory.
During consultation, calibration and setting,the display guides the user through the
menu screen structure. A cursor shows theactive screen.
7.7. CONSULTATION AND PROGRAMMING MENU(cf. Screen flow chart appendix)
Access to consultation and programming ofcontrol parameters is arranged in menus andis obtained from any of the visualisation loopsfor the function parameters by pressing the
horizontal scrolling button found underthe cover of the user terminal.
ACCESS TO MENUS AND SUBROUTINESEach of the three areas of the menu whichgive access to the reading / calibration sub-routines is composed of several options (oneper line). To continue, move the cursor verti-cally using the button and then access the
option by pressing the button.
SUBROUTINE OPERATIONSThe sequential passage between screenswithin each subroutine is performed by
pressing the page down button; The se-quence is circular and leads back to the firstscreen.The write subroutines allow the variation ofmemorised data and require a password foraccess. The password is in a sealed enve-lope attached to this manual, addressed tothe service manager.
VARIATION OF PARAMETERSCalibration and/or configuration parameters ina subroutine are modified as follows:
• choose the screen (using the button)which contains the required parameter.The flashing cursor appears in the top leftcorner of the screen;
press the button to move the cursor tothe parameter; change the value of the pa-
rameter (whether numerical or yes/no) with
the and buttons (numerical valuescan be altered only within the limits of thepre-set calibration);
• press the button to enter new values.
Pressing the button moves the cursor tothe next parameter, leaving any unmodifieddata unchanged in the memory.
IMPORTANT:
• pressing the button takes the screenback to the start of the subroutine.
• pressing the button returns to theSTATUS screen.
7.8. INTERACTION LEVELSAttached is the screen flow chart for readingand programming the control.The appearance of the screen in the opera-tional sequence depends on the pre-selectedconfiguration. (e.g. the screen for the electri-cal resistance does not appear if the machineis not fitted with it).The interaction of the user with the control ison 4 levels:
1. READING which, as well as the visualisa-tion of parameters, consists of the readingof the following:• current date and time (if clock circuit
fitted)• room conditions• values measured by sensors con-
nected to the system• set point s of function parameters• alarm events and memories (with time
and date of event if clock circuit fitted);
This level, freely accessible, also permitsaccess to the setting of the clock and tothe programming of time bands
2. OPERATIONAL PARAMETER SETTINGLEVEL which allows the modification ofthe setting values of:• set points of function parameters;• thresholds of programmable alarms;• thresholds of cumulative function hours
of individual components to indicate re-quests for maintenance.
This level is accessed with the SETTINGpassword.
3. MANUAL COMMAND LEVEL which al-
lows the manual starting of the variouscomponents of the unit, independently ofroom conditions.
This level is accessed with the CON-FIGURATION / MANUAL COMMANDpassword.
4. CONFIGURATION LEVEL in which thefollowing are possible:• the adapting of software to the re-
quested functions;• operations on the microprocessor
memory.This level is only accessible with theCONFIGURATION / MANUAL COM-MAND password contained in the sealedenvelope attached to this manual and ad-dressed to the Service manager.. In thislevel it is also possible to modify theSETTING and CONFIGURATION / MAN-UAL COMMAND passwords (see CON-FIGURATION OF CONTROL: CHANG-ING PASSWORDS).
11
8. CONFIGURATION OF THE CONTROL
The microprocessor control must be configured, i.e. adaptedto the unit in which it is to be installed.This operation is normally performed when the control is in-stalled in the unit, i.e. in the factory.It may however happen that modifications need to be carriedout because of changes to the unit or to the system.
There is a specific part of the programme which accesses theCONFIGURATION subroutine and to the other operationswhich are normally performed by service technicians.To access the CONFIGURATION subroutine follow the se-quence below until screen 75 which requests the SERVICEpassword.
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75) (screen 76)
Hardware_ Configuration
Delay SettingManual Control
Unit Type DXCompressor No. 1Electric Reheat 3Hot Water Reheat N
(screen 76a) (screen 84a)
Closed circuit SetupTemp. E.S. °C 08.0Summer Temp. °C 28.0Rad-Cooler On-Off
(screen 85b - ES)
Closed circuit Setup
Set Point. °C 28.0Rad-Cooler On-Off
(screen 85a - DX, DX-S e TC)
Closed circuit Setup
Chilled Water Activ.Set Point °C 07.0
(maschera 86 - TC)
Screen 84 enables configuration of the unit type: direct expansion, energy saving with free cooling, twin-cool, chiller water.Depending on the configuration, one of the screens from 85 to 87 is shown for the settings of:- outside air temperature set point for free cooling activation;- water temperature set point for changeover to chilled water function;- temperature set points for the chilled water circuit.
Chilled Water setupDehum. Cycle StartSet Point °C 07.0High Temo. °C 15.0
Hot Gas Coil NExternal Dehumid. NExternal Humidif. N
Offset Adj.(sonda interessata)
Read value °C 22.7Adjustament °C 0.0
Humidifier Mod. : ---V: --- Ph. - TAM: ---Steam Cap. kg/h: --Nom. Curr. A: 00.00
(screen 87- CW) (screen 88) screen 89) (screen from 90 a 93)
12
8.1. DIRECT EXPANSION CIRCUIT SETTINGS
Enables the setting of the closed circuit water temperatureset point necessary for condensation.Radiator control can be either On-Off or modulating.
8.2. ENERGY SAVING CIRCUIT SETTINGS
Closed Circuit SetupTemp. E.S. °C 08.0Summer Temp. °C 28.0Rad-Cooler On-Off/Modul.
This appears only with Energy Saving versions and enablesthe settings necessary for the maintaining of water tempera-ture in the closed circuit at two levels:
• at minimum value (ES temperature) during the energy re-covery phase;
• at a value sufficient for condensation (Summer Temp.) dur-ing the mechanical cooling phase (only when compressorsare working).
The control of the radiator connected (Rad-Cooler) can be On-off or Modulating.
8.3. SETTING OF THE TWIN-COOL CIRCUIT
Closed Circuit Setup
Set Point °C 28.0Rad-Cooler On-Off/Modul
Close Circuit Setup
Chiller Water Activ.Set Point °C 07.0
This screen enables the settings necessary for the maintain-ing of water temperature in the closed circuit at two levels: atminimum value (ES temperature) during the energy recoveryphase and at a value sufficient for condensation (SummerTemp.) during the mechanical cooling phase (only whencompressors are working).The control of the radiator (Rad-Cooler) can be On-off orModulating.
Appears only with Twin-Cool versions enables the settingsnecessary for activating the transition to chilled water func-tion.
8.4. DEHUMIDIFICATION AND ALARM SETTINGS
Chilled Water setupDehum. Cycle StartSet Point °C 07.0High Temp. °C 15.0
When the water temperature sensor is installed it is automati-cally possible to control the unit as “sensible heat only”, i.e. asan oversized unit which enables the use of chilled water attemperatures higher than the normal 7/12°C.
A special control is activated in these units during dehumidifi-cation which functions as follows:
- when dehumidification is requested the corresponding digi-tal output is immediately activated (which sends a messageto the chilled water production group to produce water at alower temperature for dehumidification)
- The temperature sensor at the chilled water intake is read;
- When the reading value reaches the set-point (see screen87) the valve is overridden to max. opening;
- If the set-point is not reached after 15 minutes a fault condi-tion is indicated by an audible signal, an alarm status and adetailed message (see section on Alarms).
The need to have a sensor on the chilled water intake enablesthe setting of a High Temp. limit alarm which signals any faultin the chilled water production system (i.e. the water tempera-ture is too high for cooling) (see section on Alarms).
Closed Circuit Setup
Set Point °C 28.0Rad-Cooler On-Off
DX
85a
ES
85b
TC
85a
86
CW
87
13
8.5. SETTING THE HOT GAS RE-HEAT, EXTERNAL DEVICES,HUMIDIFIER AND OFF-SET SENSORS
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75) (screen 76)
Hardware_ Configuration
Delay SettingManual Control
Unit Type DXCompressor No. 1Electric Reheat 3Hot Water Reheat N
(screen 76a) (screen 84)
....(screen 85a - DX,DX-S)(screen 85a, 86 - TC)(screen 55b - ES)(screen 87 - CW)
Closed circuit Setup
Chilled Water Activ.Set Point °C 07.0
(screen 86 - TC)
Screen 88 is used to set:• the presence of a hot gas re-heat coil;• the use of an external dehumidifier piloted by the DO9 output,
which substitutes the dehumidification by the resources of theunit.
• The use of an external on/off humidifier piloted by the D06 relayoutput in place of the unit’s dehumidification system (see sectionon Base Circuit).
Screen 89 is used to set the model of built-in humidifier, the nomi-nal voltage, the number of phases, the model of amperometrictransformer (TAM) and the steam production capacity (SteamCap.). The nominal current absorption is also shown (Nom. Curr.A).
Screens 90,91,92 and 93 can be used for adjusting the read valuesof the temperature sensors via the display of the read values on ameasurement instrument..The adjustment can be made at intervals of 0.1 °C and the maxi-mum adjustment possible is from -9.9°C to +9.9 °C.
When the unit is configured in the factory, the microprocessor con-trol analyses the analogue and digital inputs to detect automaticallythe sensors which are connected to the terminal board. If optionalsensors (clogged filter, flooding, smoke/fire or temperature & hu-midity) are connected to the board after the unit is delivered, thesemust be specified in screen 93b.
NOTE: the electrical diagram supplied with the unit gives details ofanalogue and digital inputs for the connection of optional sensors..
8.6. SETTING DELAY TIMES
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75) (screen 76)
Harware Configurations_..Delay Settings....Manual Control
Power On Delay s 000LP-Stat Delay s 180Start Trans. s 60T+H Al. Delay min 15
Anti-Hunting TimeConstant of Room
Temp. Control min 01
(screen 76a) (screen 94) (screen 94b)
The first screen (n° 94) is used to set:• the unit re-start delay after power loss (Power On Delay);• the initial period after compressor start-up during which the low
pressure pressostat reading is ignored (LP-Stat Delay);• the delay between the start-up of the unit and the start of regulation.
(Start Trans.);
• the delay after the start-up of the unit before the signalling of roomcondition alarms (T+H Al. Delay)
The next screen (n° 94b) sets the room temperature control antihunting constant for avoiding excessive thermal swings. This valuemust increase with the thermal inertia of the air conditioned room.
.
Chilled Water setupDehum. Cycle StartSet Point °C 07.0High Temp. °C 15.0
(screen 87 - CW)
Hot Gas Coil NExternal Dehumid. NExternal Humidif. N
(screen 88)
Humidifier Mod.: --V: --- Ph. - TAM: ---Steam Cap. kg/h: --Nom. Curr. A: 00.00
(screen 89)
Offset Adj.(sensor)
Read Value °C 22.7Adjustament °C 00.0
(screen: 90 - 93)
Cl. Filter P-stat NFlood detector NSmoke/Fire-stat NT+H Instruments N
(screen: 93b)
14
8.7. REMOTE CONTROL, SUPERVISION AND STAND-BY MANAGEMENT
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75) (screen 76)
Screen 77 sets:• remote control via potential-free contact (I/O via Contact)• remote control by supervision system via RS422 or RS485 serial
line - (I/O via Serial)• the serial address of the unit if connected to a serial supervision
network• the serial transmission speed (Speed) -1200, 2400, 4800 (and for
RS485) 9600 and 19200.• The group configuration with one unit in stand-by (Unit Switch-Over).
As described in the section on special functions, it is possible to man-age two units with stand-by functions.
Screen 78 (which does not appear if the unit is in a local network)sets:• the rotation time of the stand-by unit (Cycle Time)• the possibility to have only one unit functioning (1 Unit On Limit), in
order to avoid overloading power supply line which is insufficient forboth units. (e.g. UPS)
Screen 79 is only shown when:a. “Unit switch-over - YES” is selected in screen 77;b. The unit is in a local network.This screen enables the setting of:• the rotation time of the stand-by unit (Cycle Time)• the number of units connected in the local network (No. of Units (2-
5) and in the rotation group.
If the stand-by management of units in a LAN is NOT required:• select ‘Unit Switch-Over’ - YES in screen 77• set the number of units in the LAN in screen 79• go to screen 77 in the Remote Control subroutine again and select
“Unit Switch-Over - NO” in screen 77.
Screen 79.a (only shown with LAN configuration) enables the selec-tion of unit function with mean temperature and humidity values orwith local values.- Mode: Local: unit control uses temperature and humidity values readby local sensors.- Mode: Mean: unit control uses average temperature a d humidityreadings from sensors on all the units in the LAN In this mode there isa settable differential value (default 2°C) which automatically switchesbetween mean and local values.
8.8. CHANGING THE PASSWORD
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75 ) (screen 76)
Software Configuration Remote Control_ Operat. on Memory
_ Password Settings Memory Clear-up Factory Pre-set
Set-up of Passwordsfor Accessing to:
Settings 00000Service 00000
(screen 76) (screen 80) (screen 81)
Screen 81 enables the Settings and Service menu access passwordsto be changed.Since access to the CONFIGURATION subroutine is possible onlywith the relative password, make a note of the new password beforechanging the old one.
Software Configuration_Renote Control Operat on Memory
(screen 76)
I/O via Contact NI/O via Serial NId# 01 Speed 1200Units Switch-Over N
(screen 77)
Autom. Switch-OverBase / Std-by Pair
Cycle Time h 1751 Unit On Limit N
(screen 78)
Autom. Switch-OverBase / Std-by Pair
Cycle Time h 175No. of Unit (2-5) 2
(screen 79 LAN)
Usage of T+H valuesMode: Mean
Aut.ChangeoverMean/Loc.Diff.°C 2.0
(screen 79a LAN)
15
8.9. CLEARING THE MEMORY AND RESTORING FACTORY-SET DEFAULTS
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75) (screen 76)
Software Configuration Remote Control_ Operat. on Memory
Password Settings_ Memory Clear-up Factory Pre-set
The Memory Clear-upInvolves the Loss ofall Recorded Data
Confirm? _NO YES
The Set Point ResetInvolves the Loss ofall Recorded Data
Confirm? _NO YES
(screen 76) (screen 80) (screen 82) (screen 83)
Screen 82 interacts with the data in the microprocessor EEPROM.
Clearing the memory (“memory clear-up”) is necessary if the EPROMis changed (for example to up-date the program) or if the data (set-points, configuration choices, etc.) is disrupted.After clearing the memory it is necessary to re-set the factory de-faults, re-configure the control and re-set parameters which were dif-ferent from the defaults. (See FACTORY DEFAULTS-SETTINGFIELDS).
Set Point Reset automatically restores the factory defaults (see FAC-TORY DEFAULTS-SETTING FIELDS) when the memory has beencleared or when it is necessary to restore all parameters to defaultvalues with a single command.After this operation it is necessary to re-configure the control and re-adjust the set-points if the desired settings are different from the de-faults.
9. CALIBRATION AND SETTINGS
All variables are pre-set in the factory to enable the control to functioncorrectly and guaranteeing the maintenance of standard conditions inthe room (see FACTORY DEFAULTS-SETTING FIELDS).
The setting variables in the memory can be checked and modified inthe SETTINGS subroutine by following the sequence below and then
pressing the button to read the data in sequence.By choosing the SET POINT DISPLAY mode, the password is notrequested and settings can be read but not modified.
(screen 11) (screen 67) (screen 41) (screen 42)
(screen 43) (screen 44) (screen 45) (screen 46)
If dehumidification control is activated, the set points relating to humidity are also shown :
(screen 44) (screen 44) (screen 45) (screen 46)
If setback mode is activated the set points relating to humidity are also shown:
(screen 46) (screen 46) (screen 47)
If the humidifier is configured using screen 89, the humidifier settings can be accessed:
.....Alarm Display Set Point Display_...Settings.... Service
Accessto Settings
Enter Password 00000
_ Room Cond. Setting Humidifier Setting Alarm Setting Clock Facility
Cool. Set P. °C 23.0Sensitivity °C 1.5Time constant s 0600Del. Temp.Limit °C 14
Cool. Set P. °C 23.0Heat. Set P. °C 23.0Sensitivity °C 1.5
_ Relative HumidityDehumid. Control: NDehum.Set P. rH% 55Deh.Prop.Band rH% 05
_ HumidificationHumid.Set P. rH% 45Hum.Prop.Band rH%0.5
Setback mode NMin. Temp. °C 16Max. Temp °C 28
Relative HumidityDehumid. Control: NO
_ Set Backmode NOMin. Temp. °C 16.0Max Temp. °C 28.0
Relative HumidityDehumid. Control: YESSet Dehumid. %rH 55Dehum.prod.band. 05
Humidifier SettingSet Humidif. %rH 45Humidif.prop.band 05
_ Set Backmode NOMin. Temp. °C 16.0Max Temp. °C 28.0
Set Backmode YESMin. Temp. °C 16.0Max Temp. °C 28.0
Set BackmodeMin. Rel Hum. rH% 35Max Rel.Hum. rH% 75
.....Alarm Display Set Point Display_...Settings.... Service
Accessto Settings
Enter Password 00000
Room Cond. Setting_ Humidifier Setting Alarm Setting Clock Facility
_ Humidifier SettingMaximum Steam
Production kg/h 02.0(30-100% Nom. Cap.)
16
To change the setting variables and adjust the performance of the unitit is necessary to enter the SETTINGS subroutine and follow the se-quence below up to screen 67 which requests the Setting password.
Enter the password which is found in the envelope enclosed with this
manual and press the button to enter the subroutine.
If the password is not correct access to the subroutine is denied.If an incorrect password is entered three times, an alarm status is ac-tivated and memorised.
IMPORTANT: at any time it is possible to:
• return to the previous menu with;
• return to the STATUS screen with:
The number and the content of the screens are related to the maxi-mum configuration. In the subroutines only information relating to theactual configuration appears.Values can only be changed in the enabled setting fields.N.B.: default values are shown in the screens in this manual (seeFACTORY DEFAULTS-SETTING FIELDS).
SCREEN 42• Cool. Set P.: cooling set point (°C)Important: to lower the cooling set point it may be necessary to lowerthe heating set point as well, in order to prevent the cooling proportio-nal band overlapping the heating band.• Sensitivity: .proportional cooling band (°C)• Time Constant: integration time of P+I (s), only for close control
mode.• Del. Temp. Limit:: discharge air minimum temperature limit (°C),
(only with optional temperature sensor.
SCREEN 43• Cool. Set P.: cooling set point (°C) (read only)
• Heat. Set P.: heating set point (°C)• Sensitivity: . proportional heating band (°C)
SCREEN 44For dehumidification control:• Dehumid. Control: dehumidification function enabled/disabled• Dehum. Set P.: dehumidification set point (rH%)• Deh. Prop. Band.: hysteresis of dehumidification (rH%)
SCREEN 45For humidification control (only with an internal or external humidifier)• Humid. Set P.: humidification set point (rH%)• Hum. Prop. Band.: proportional humidification function band (rH%)
SCREEN 46For setback mode control:• Setback mode: setback mode function enabled/disabled• Min. Temp.: re-heat temperature set point during setback mode
(°C)• Max. Temp.: cooling temperature set point during setback mode:
(°C)
SCREEN 47For setback mode control.• Min. Rel Hum.: humidification start set point during setback mode
(rH%)• Max. Rel Hum.: dehumidification start set point during setback
mode (rH%)
SCREEN 48For setting the steam production capacity of the built-in humidifier.• Maximum Steam Production: max. steam production limit in kg/hN.B. by reducing the steam production capacity to the level requiredby the room, it is possible to optimise humidification function and ex-tend the life of the steam cylinder.
9.1. ROOM SETTING ALARMS
(screen 11) (screen 67) (screen 41) (screen 49)
(screen 50) (screen 49) (screen 51)
For setting the minimum and maximum room temperature andrelative humidity limits; when the limit is reached the specific alarmis signalled by the internal sensor.
SCREEN 50• Cool. Set P.: cooling set point(°C) (read only)• Room High T: high room temperature alarm threshold (°C)• Heat. Set P: heating set point (°C) (read only)• Room Low T. low room temperature alarm threshold(°C)N.B. the last two lines only appear if there is at least one heatingdevice present.
SCREEN 51• Dehum. Set P dehumidification set point (rH%) (read only)• High Rel.Hum: high room relative humidity alarm threshold
(rH%)• Hum. Set P: humidification set point (rH%) (read only)• Low Rel.Hum: low room relative humidity alarm threshold(rH%)
N.B. the display of the lines depends on the unit resources avail-able.
Cool. Set P. °C 23.0Room High T. °C 30Heat. Set P. °C 23.0Room Low T. °C 10
.....Alarm Display Set Point Display_...Settings.... Service
Accessto Settings
Enter Password 00000
Room Cond. Setting Humidifier Setting_ Alarm Setting Clock Facility
_ Temperature Alarms. Humidity Alarms Run Hour 2nd Level Alarms
Temperature Alarms._ Humidity Alarms Run Hour 2nd Level Alarms
Dehum. Set P. rH% 55High Rel.Hum. rH% 80Hum. Set P. rH% 45Low Rel.Hum. rH% 30
17
9.2. SETTING THE RUN HOUR COUNTER ALARM THRESHOLD
(screen 11) (screen 67) (screen 41) (screen 49)
(screen 52) (screens 53 to 60)
This part of the programme enables the setting of the service in-tervals of the unit’s components by fixing a run hour limit.When the component concerned reaches the limit the control sig-nals the service request, activating an alarm condition and display-ing “SERV” on the first screen.
Use the key to scroll down the devices present in the unit.:1. Dirty filters2. Compressor 1 (or 1.1 in a unit with 4 compressors)3. Compressor 1.2 (in a unit with 4 compressors)4. Compressor 2 (or 2.1 in a unit with 4 compressors)5. Compressor 2.2 (in a unit with 4 compressors)6. Electric re-heat 17. Electric re-heat 28. Humidifier9. Complete unit
9.3. SETTING SECOND LEVEL ALARMS
(screen 11) (screen 67) (screen 41 ) (screen 49)
(screen 61) (screen 62) (screen 63) (screen 64)
(screen 65) (screen 66) (screen 67)
This part of the programme enables the choosing of which alarmsde-energise the adressable alarm relay (2nd level).
When one or more units are connected of which one is in stand-by, the selected alarms activate the changeover of the functioningunit and the switching on of the stand-by unit.
Air FilterTot.Run Hours 00000Alarm Limit H 01000Reset --
.....Alarm Display Set Point Display_...Settings.... Service
Accessto Settings
Enter Password 00000
Room Cond. Setting Humidifier Setting_ Alarm Setting Clock Facility
Temperature Alarms. Humidity Alarms_ Run Hour 2nd Level Alarms
(Risorsa specifica)Tot.Run Hours 00000Alarm Limit H 00000Reset --
2nd Level AlarmsAir Flow/Fans YCompressors YEl.Heaters Y
2nd Level AlarmsMain Sensor YAuxil. Sensor NLocal Network N
Alarm Display Set Point Display_ Settings Service
Accessto Settings
Enter Password 00000
Room Cond. Setting Humidifier Setting_ Alarm Setting Clock Facility
Temperature Alarms. Humidity Alarms Run Hour_ 2nd Level Alarms
2nd Level AlarmsAir filters NHumidifier YLowRoomR.Hum Y
2nd Level AlarmsWrong Password NUnit Run Hours NFilter Run Hours N
2nd Level AlarmsHigh RoomTemp YLow Room Temp YHigh RoomR.Hum Y
2nd Level AlarmsCompr.Run Hours NReheat.Run Hours NHumidifier Run H. N
2nd Level AlarmsFlooding NSmoke/fire NExt.RoomSensor N
18
10. CLOCK-CALENDAR - TIME BANDS
Microprocessors fitted with the optional clock circuit, as well asdisplaying the current time and date, enable the associating of thefollowing with time:• the starting and stopping of the unit according to a time sched-
ule (see. SPECIAL FUNCTION: AUTOMATIC TIME BANDFUNCTION);
• alarm events.The programming of the current time and date and the program-ming of the time bands is done using the CLOCK FUNCTION sub-routine which is accessed as follows:
(screen 11) (screen 67) (screen 41) (screen 68)
(screen 70) (screen 71) (screen 72) (screen 73)
If the ‘unit on-off cycle’ function is enabled:
(screen 70) (screen 70) (screen 69) (screen 74)
(screen 74)
Screen 68 sets:• the time of day (hours, minutes);• the date (day, month, year).
This enables the setting of the automatic start and stop of the uniton a time basis (time bands) with:• up to three daily on/off cycles, each with a start time and a stop
time;
• a weekly cycle which divides the daily cycles into weekdays(Monday to Friday), pre-holidays (default for Saturday) and holi-days (default for Sundays).
If YES is selected in screen 70, the time band function is acti-vated. Screens 71-72 and 73 set the on and off cycles of the unitfor weekdays, pre-holidays and holidays. It is possible to changethe default settings for classification of days of the week. Thesymbol >P in screen 74 indicates that, for example, a weekdayhas been manually changed into a pre-holiday.
Alarm Display Set Point Display_ Settings Service
Accessto Settings
Enter Password 00000
Room Cond. Setting Humidifier Setting Alarm Setting_ Clock Facility
Clock - CalendarHours/Minutes 00:00DD/MM/YY 00/00/00Weekday
PROGRAM. 00/00/00MO TU WE TH FR SA SU
≥P N N N N P F
Unit On-off Cycle(Max 3 On-off Daily Cy-cles)Enable: N
Regular DayOn 00:00 Off 00:00On 00:00 Off 00:00On 00:00 Off 00:00
Saturday/Pre-HolidayOn 00:00 Off 00:00On 00:00 Off 00:00On 00:00 Off 00:00
Sunday and HolidayOn 00:00 Off 00:00On 00:00 Off 00:00On 00:00 Off 00:00
Unit On-off Cycle(Max 3 On-off Daily Cy-cles)Enable: _NO
Unit On-off Cycle(Max 3 On-off Daily Cy-cles)Enable: YES
Programmed Cycle: NRegular dayTo Change
Press Key >>
PROGRAM. 00/00/00MO TU WE TH FR SA SU_N N N N N P F
19
11. MANUAL CONTROLS
All unit components are normally in automatic function.
To facilitate service and regulation operations or in an emergencyit is possible to override the regulation process and manually start:• recirculation fans• the compressor• the electrical re-heat• the hot gas re-heat• the external air intake damper• the condenser fans.
Obviously all safety devices are active during manual override.
The programmed function mode can be read by entering theMANUAL CONTROL read-only subroutine, following the sequence
below and then pressing the key to read all the settings in se-quence.
Entering the subroutine in this way does not allow changing of theparameters.
To change the function mode of a component, move the cursor to
the relevant line, press the or key to change between
AUTO and MAN and then confirm with .
_ Alarm Display Set Point Display Settings Service
Alarm Display Set Point Display Settings_ Service
Access toConfiguration Menu
Enter Password: 00000
Software Configuration Remote Control Operat on Memory
(screen 11) (screen 11) (screen 75) (screen 76)
(screen 76a) (screen 95) DX (screen 96) CW (screen 97)
(screen 98) (screen 99)
SCREEN 95 (not for CW units)• Unit start-Up: switching on the fan• Compressor 1: switching on compressor 1• Compressor 2 switching on compressor 2
SCREEN 96 (only for CW units)• Unit start-Up: switching on the fan• Y0 Ramp %: override of analogue output 0.• Y1 Ramp %: override of analogue output 1
SCREEN 97• Dehumidification: override of dehumidification function• Reheating 1: switching on of first stage of electric re-heat
• Reheating 2: switching on of second stage of electric re-heat
SCREEN 98• Humidifier Drain Valve: overrides the drain function of the hu-
midifier
SCREEN 99• Y0 Ramp: overrides analogue output 0 in direct expansion units• Y1 Ramp: overrides analogue output 1 in direct expansion units
Hardware Configurations Delay Setting_ Manual control
Manual OverrideUnit start-Up NCompressor 1 NCompressor 2 N
Manual OverrideHumidifier Drain Valve N
Manual OverrideUnit start-Up NY0 Ramp % NY1 Ramp % N
Manual OverrideY0 Ramp % 000Y1 Ramp % 000
Manual OverrideDehumidification NReheating 1 NReheating 2 N
������������������������������������������
20
12. MANUAL OVERRIDE OF START-UP/STOP
This subroutine is necessary to stop or startthe unit manually when it been started orstopped by one of the automatic function de-vices (shown in field D of the STATUSSCREEN: (see START-UP AND STOPPING;THE STATUS SCREEN):• Remote control;• Supervision system;• Automatic inversion of the stand-by unit;• Automatic time band function.
If the key is pressed on a unit con-trolled by one of the above devices, the dis-play automatically goes to screen 201 whichshows any manual function overrides.To enter the subroutine, type the SETTINGSpassword, found in the envelope attached to
the manual, and press the key (seeSWITCHING ON AND PROGRAMMING:CONSULTATION AND PROGRAMMINGMENU).
If an incorrect password is entered threetimes an alarm condition is activated andmemorised.
IMPORTANT: at any time it is possible to:
• return to the start of the subroutine with:
• return to the STATUS screen with:
12.1. MANUAL OVERRIDE PROCEDUREIf the unit is controlled by one of the auto-matic devices, screen 202 is shown.If the unit has been stopped by one of theautomatic devices, screen 203 is shown.
The line with the asterisk contains the de-scription of the device controlling the unit:• REMOTE CONTROL (also for CDC exter-
nal control system);• SUPERVISOR;• BASE/STAND-BY CYCLE;• TIME PROGRAMME.
To force the unit to turn on or off, press the
key again;
• if the unit has been forced to turn off, infield C of the display appears the message:“UNIT FORCED OFF - PRESS THE ONKEY” (see . SWITCHING ON AND PRO-GRAMMING: DISPLAY INFORMATIONWHEN THE UNIT IS OFF);
• if the unit has been forced to turn on, infield C of the STATUS screen appears themessage “FORCE” (see SWITCHING ONAND PROGRAMMING: THE STATUSSCREEN).
12.2. EXITING MANUAL OVERRIDE
To exit manual override , shown in field C ofthe STATUS screen with the message“FORCE”, (see SWITCHING ON AND PRO-GRAMMING: THE STATUS SCREEN), press
the key and type the SETTING Pass-word.If the unit is forced off, screen 204 will ap-pear.
If the unit is forced on, screen 205 will ap-pear.The line on the screen with the asterisk (∗)gives the description of the device controllingthe unit.
After exiting manual override the word“FORCE” no longer appears in field C of theSTATUS screen.
13. ALARMS
All alarm conditions are signalled:1. acoustically, by the buzzer in the user
terminal;2. visually, by the red LED on the front and by
one of the messages below in field E of thedisplay:• ALARM, if there is a fault; SERV., if one of the programmed com-
ponent service thresholds has beenpassed (see RUN HOUR COUNTEROPERATIONS).
3. By the closing of the potential-free NOcontacts (see LAYOUT OF THE BASECIRCUIT):• NO8-C8, with a recirculation fan alarm;• NO6-C6, with a compressor alarm;• NO11-C11, with an electric re-heat
alarm;
• NO7-C7, with a dirty filter alarm(optional)
Only if programmed (see SETTING THE 2ndLEVEL ALARMS), the alarm condition of thespecified components activates:
• the exchange of the general alarm signalcontact C10-NO10-NC10,; the automaticcalling of the stand-by unit (see REMOTECONTROL, SUPERVISION AND STAND-BY MANAGEMENT
Press the key to silence the buzzer (ifactive) and the alarm description.
Press the to read any other alarmevents in sequence and to enter the STATUS
LOOP (see STATUS LOOP: DISPLAYINGFUNCTION PARAMETERS).
The message ALARM is displayed until thecause of the alarm has been eliminated.
If the cause of the last alarm is no longer
present, keeping the button pressedeliminates that alarm message. If the causeof the alarm is still present, the buzzer willcontinue to sound.
The message SERV. Is displayed until therun hour counter is re-set (see RUN HOURCOUNTER OPERATIONS).
SWITCH ON/OFFMANUAL OVERRIDE
PLEASE TYPE INPASSWORD: 00000
(screen 201)
_UNIT MANUALLY ONTO GO BACK TO
(∗)PRESS ON/OFF KEY
(screen 205)
_UNIT SWITCHED-ON BY(∗)
TO MANUALLY STOPPRESS ON/OFF KEY
(screen 202)
_UNIT SWITCHED-OFF BY(∗)
TO MANUALLY STARTPRESS ON/OFF KEY
(screen 203)
_UNIT MANUALLY OFFTO GO BACK TO
(∗)PRESS ON/OFF KEY
(screen 204)
21
13.1. HISTORICAL ALARM SEQUENCE
In order to reconstruct the historical alarmsequence the microprocessor keeps the last30 alarm events in the memory.
All memorised alarms can be read in seriesstarting from any screen in the STATUSLOOP and following the sequence shown
here and then pressing the key.
SERV events (when the run hour counterthreshold is passed) are not memorised andare therefore not read.
In the sequence, the first alarm read is themost recent event..
All descriptions of alarm conditions include anumber from 01 to 30 next to the letters AL inthe top right corner of the display. This num-ber indicates the time order of the event. Af-ter the 30th event is passed, the numbersstart again from 01.Microprocessors with the optional clock cir-cuit associate the time and date with thealarm event.
Pressing the key returns to theSTATUS screen from any alarm readingscreen.
13.2. DESCRIPTION OF ALARM EVENTSAll possible alarm messages which can be shown on the userterminal display are listed below.
It should be noted that some of these refer to specific unitconfigurations and will not appear unless the unit in questionhas the relevant feature.
To find the solution to any problems, please refer to the Trouble-shooting section in this manual and to the instruction manual forthe unit controlled by the microprocessor.For alarms in progress (i.e. not alarms in the historical sequence),the last two lines of the screen give general indications for the so-lution of the problem.
Alarm LAN 1EEPROM Failure:
Replace Control Board
Indicates EEPROM write error - itmust be replaced.
Alarm LAN 1Attempt to Access
With Wrong(Min. 3 Oc-currences) Password
Access alarm
Alarm LAN 1Compr.1 Low Pressure
Check refrig. Circuit/Refrigerant Charge
Compressor alarm: on DX, ES, TCunits only.Causes circuit 1 compressors to stop.See Note 1.
Alarm LAN 1Compr.1 High Press.Check Refrig. Circuit
and/or Condenser
Compressor alarm: on DX, ES, TCunits only.Causes circuit 1 compressors to stop
Alarm LAN 1Compr.2 Low PressureCheck Refrig. Circuit/Refrigerant Charge
Compressor alarm: only on DX, ESand TC units.Causes circuit 2 compressors toswitch off. See note 1.
Alarm LAN 1Compr.1 High PressCheck Refrig. Circuit
and/or Condenser
Compressor alarm: only on DX, ES,TC units.Causes circuit 2 compressors to turnoff.
Alarm LAN 1Loss of Air Flow
Check Fan/Switch
Fan alarm: detected by airflow differ-ential pressostat. Causes compres-sors, electric re-heat and humidifier toturn off, leaving only fans operating.
WARNING! LAN 1Wrong Power Phases
Sequence: PleaseChange-Over 2 Phases
Causes the unit to turn off.See NOTE 1.
Alarm LAN 1Heaters Overheating
Check Air Flowand/or Safety Switch
Alarm detected by safety thermostat,Causes the electric re-heat to turn off..
Alarm LAN 1Clogged Filters
Clean or ReplaceFilter Element
Detected by dirty filter differentialpressostat. Causes an alarm signalonly - does not influence unit function.
Alarm LAN 1Flood AlarmCheck WaterConnections
For CW units only. Detected byflooding sensor. Causes the unit toswitch off only if included among sec-ond level alarms.
Alarm LAN 1Presence of
SMOKE/FIRE
Detected by smoke/flame sensor.Causes the unit to switch off only ifincluded among second level alarms.
AlarmCW Valve Failure orWater Flow too Low
Only on TC units. Causes function tochange from chilled water to directexpansion.Also displayed when the room tem-perature sensor detects the exceedingof the set limit for the first time.
Alarm LAN 1Room Limit Exceeded
(by Ext. Sensors)
Signal only.
Alarm LAN 1Room TemperatureAbove Max. Limit
Signal only.
Alarm LAN 1Room Temperature
Below Min. Limit
Signal only.
Alarm LAN 1Room Rel. Humidity
Above Max. Limit
Signal only.
Alarm LAN 1Room Rel. Humidity
Below Min. Limit
Signal only.
AL12AIR FILTER BLOCKED
12:44 12 / 10 / 97 AL12AIR FILTER BLOCKED
_ ALARM DISPLAY SET POINT DISPLAY SETTINGS SERVICE
(screen 11)
22
Alarm LAN 1Humidifier: High Current:Check Cylinder / Draining
Humidifier alarm; disables humidifica-tion function
Alarm LAN 1Humidifier: Loss of
Water: CheckWater Supply
Humidifier alarm; disables humidifica-tion function.
Alarm LAN 1Humidifier: Loss of
Power: CheckElectrical Circuit
Humidifier alarm; disables humidifica-tion function.
Alarm LAN 1Room Rel. Hum.
SensorFailed/Disconnected
Causes compressors, electric re-heatand humidifier to turn off, leaving onlyfans operating
Alarm LAN 1Room Temp.
SensorFailed/Disconnected
Causes compressors, electric re-heatand humidifier to turn off, leaving onlyfans operating
Alarm LAN 1Water In Temp.
SensorFailed/Disconnected
Disables the function of the unit linkedto sensor measurement (dry coolercontrol)
Alarm LAN 1Outdoor Temp.
SensorFailed/Disconnected
Disables the function of the unit linkedto sensor measurement (free-coolingcontrol).
Alarm LAN 1Deliv. Temp.
SensorFailed/Disconnected
Disables the function of the unit linkedto sensor measurement.
Alarm LAN 1Hot Water Temp.
SensorFailed/Disconnected
Disables the function of the unit linkedto sensor measurement.
Service Alarm LAN 1Air Filter
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero.
Service Alarm LAN 1Unit
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero.
Service Alarm LAN 1Compressor 1
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero. Not available onCW units.
Service Alarm LAN 1Compressor 2
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero. Not available onCW units.
Service Alarm LAN 1Compressor 2
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero. Not available onCW units.
Service Alarm LAN 1Compressor 2
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero. Not available onCW units.
Service Alarm LAN 1El. Heater 1
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero.
Service Alarm LAN 1El. Heater 2
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero.
Service Alarm LAN 1Humidifier
Exceeded 00000 RunHours
Signal only. Displayed only if timethreshold is not zero.
Alarm LAN 1Water too Warm to
get DehumidificationCheck Chiller Group
CW units only. Detected by tem-perature sensor when chilled watertemperature does not reach thevalue set on the terminal within 15minutes of the call for dehumidifica-tion.
Alarm LAN 1High Chilled Water
Temperature:Check Chiller Group
CW units only (Signal only).
Alarm LAN 1Local Area Network
InterruptedCheck Wiring
Signal only.
LAN 1No alarm
NOTES:
1. If the Phase Sequence Error alarm is shown, check the electricalconnections and also whether the LP pressostat has intervened. Itcould be that the refrigerant charge needs to be increased (see unitinstruction manual).In the same way, if there is a Low Pressure Circuit xx alarm, thecause of this alarm must be investigated (intervention of LP pres-sostat or phase sequence relay).
2. If a unit is in a local network, the LAN address of the unit is di-splayed in addition to alarm or service messages.
23
14. TROUBLESHOOTING
Many problems can be caused by loose header connections. In theevent of an alarm, check that all wires are securely attached to theheader.
In any case it is advisable to contact the nearest authorised Service Centre, with at least a general indication of the natureof the problem.To facilitate diagnosis of the problem it is helpful to have an electricaldiagram of the unit in which the control is fitted.
PROBLEM POSSIBLE CAUSE CHECK / CORRECTIVE ACTIONTHE UNIT DOES NOT SWITCH ON(Mains LED on base circuit is off,
A) The unit’s on-board electrical panelis not powered
Check mains power. Check that the power switch on theelectrical panel is closed.
display is off, other LEDs are off) B) The base circuit of the control is notpowered.
1) Check that auxiliary power switch is primed;2) Check mains power at headers G and G0 on the base
circuit;3) Check that the protection fuse for the base circuit is
intact;4) Check the electrical connections (see unit electrical
diagram).AFTER SWITCHING ON, THE CON-TROL IS NOT IN NORMAL CONDI-TION (alarm LED on; no LCD displayor random display; buzzer active)
A) The EPROM is nor positioned cor-rectly
Disconnect the power supply, position the EPROM cor-rectly (see CHARACTERISTICS) and re-connect thepower supply. N.B.: read the IMPORTANT WARNINGSon page 2 CAREFULLY
B) Some of the EPROM pins werebent during installation.
See above
C) The microprocessor chip has beenincorrectly handled
The control must be replaced: contact the authorisedservice centre
THE USER TERMINAL DOES NOTRESPOND TO THE BUTTONS BE-ING PRESSED
D) The user terminal is not connected. Disconnect the power supply, connect the terminal and re-connect the power supply. N.B.: read the IMPORTANTWARNINGS on page 2 CAREFULLY
E) The EPROM is nor positioned cor-rectly
Disconnect the power supply, position the EPROM cor-rectly (see CHARACTERISTICS) and re-connect thepower supply. N.B.: read the IMPORTANT WARNINGSon page 2 CAREFULLY
A NON-EXISTENT ALARM CONDI-TION APPEARS REPEATEDLY
F) The contact connected to the digitalinput is normally open instead ofnormally closed
Switch the contact over (see LAYOUT OF BASE CIR-CUIT)
G) Defective contact on the relativedigital input connections
Check the closure of the contact on the base circuit head-ers.
H) Fault on the digital input circuit The control must be replaced. Contact the Service CentreON THE DISPLAY APPEARS THEMESSAGE: EEPROM DAMAGED -CHANGE CONTROL CIRCUIT
The memory chip is damaged Contact the Service Centre; change the base circuit
24
15.1. FACTORY PRE-SETS - CALIBRATION FIELDSThe microprocessor function parameters arepre-set in the factory at the most commonfunction values (DEFAULT values).
These values can be adapted to the de-mands of the environment, within the mini-mum and maximum limits given in the tablebelow.
For convenience, next to the parameter isgiven the number of the screen in which thatparameter can be modified.
CONFIGURATION STATUS PARAMETER NUMBERS
Screen PARAMETER DEFAULT Screen SETTING VALUE PRE-SET MIN MAX.
Humidity control: 42 Cooling set point °C 23,0 18,0 32,044 Dehumidification NO 42 Cooling sensitivity °C 1,5 0,5 9,989 Humidification NO 42 Time constant sec 060046 Setback mode NO 42 Delivery Temp. limit °C 14 10 25
50 High room temp. alarm threshold °C 30 20 45Addressing for 2° level alarm: 43 Heating set point °C 23,0 5,0 25,0
61 Airflow / fan YES 43 Heating sensitivity °C 1,5 0,5 9,061 Compressors YES 50 Low room temp. alarm threshold. °C 10 25 2561 Electrical Heaters YES62 Air filter NO 44 Dehum. set point rH% 55 40 9062 Humidifier YES 44 Dehum. prop. band. rH% 05 03 1562 Low Room R.Hum. YES 51 High room rH alarm threshold rH% 80 40 9963 High Room Temp.. YES 45 Hum. set point rH% 45 20 8063 Low Room Temp. YES 45 Hum. prop. band. rH% 05 03 2063 High Room R.Hum. YES 51 Low room rH alarm threshold rH% 30 05 6564 Flooding NO64 Smoke/fire NO Setback mode control64 External Room sensor NO 46 Min. Temp. °C 16 5,0 24,065 Main sensor YES 46 Max. Temp. °C 28 20,0 35,065 Auxiliary Sensor NO 47 Min. Rel. Hum. rH% 35 20 6065 Local Network NO 47 Max. Rel. Hum. rH% 75 50 9066 Wrong password NO66 Unit Run Hours NO 78 Cycle Time h 168 1 99966 Filter Run Hours NO 79 No. of Unit 2 2 567 Compr.Run Hours NO Changing the password67 Reheat.Run Hours NO 81 Password for settings 00000 00000 3200067 Humidifier Run Hours NO 81 Password for service * 00000 32000
∗ Passwords contained in sealed en-velope attached to this manual
84 Compressor number 1 1 4Remote control, supervision and stand-by management 84 Electrical Reheat 3 0 3
77 I/O via Contact NO77 I/O via Serial NO Counter threshold77 Id# 01 Speed 1200 Filter counter threshold h 1000 0 3200077 Units Switch-Over NO Humidifier h 500 0 3200078 1 Unit On Limit NO All other devices h 0 0 3200084 Hot water re-heat NO88 Hot gas coil NO Energy Saving circuit settings88 External Dehumidifier NO 85 Temp. E.S. °C 8,0 5 2488 External Humidifier NO 85 Summer Temp. °C 28,0 15 40
Manual override - DX Twin-cool circuit settings95 Unit start-up NO 86 Chilled Water Activ. - set point °C 7,0 7 2595 Compressor n.1 NO Dehumidification and alarm settings95 Compressor n.2 NO 87 Chill. water set-up - Dehum. cycle
start°C 7,0 5 20
Manual override - CW 87 Chilled Water set-up - High Temp. °C 15,0 5 2096 Unit start-up NO96 Y0 Ramp % NO 90÷93 Offset sensors - Adjustment °C 0 -9,9 +9,996 Y1 Ramp % NO Setting delay times97 Dehumidification NO 94 Power On Delay sec 0 0 30097 Reheating n.1 NO 94 Low pressure delay sec 180 0 30097 Reheating n.2 NO 94 Start Transitory sec 60 0 9998 Humidifier - drain valve NO 94 T+H Alarm Delay min 15 0 9999 Y0 Ramp % 000 94b Anti-Hunting time constant of room min 1 0 3099 Y1 Ramp % 000
15.1. RESTORING FACTORY PRE-SETSThe instruction RESTORE DEFAULT PRE-SETS (see CONFIGURATION OF THECONTROL: CLEARING THE MEMORY) canbe used to restore automatically the factorypre-sets.
This may be useful if the control needs to bereconfigured or to return with a simple com-mand to the default settings after a trial cycleof the unit.
After this operation the control must be re-configured and any set points different fromthe default must be adjusted.
LAY-OUT OF BASIC CIRCUIT - mP20 DX-DX/S-ES-TC-CW(without hot gas reheat)
123
J14
J15
J8J9
+24V
24V~
0
24V~
0
POWER SUPPLY CONNECTOR24V∼ - 50/60Hz -15VA
FUSE (250 V ∼ - 2A RIT)
POWER LED
JUMPER TO SELECT THE LOCALNETWORK COMMUNICATION MODE
MICROPROCESSOR
TELEPHONE-TYPE CONNECTOR FOR CONNECTION TOTHE USER TERMINAL UNIT OR TO LOCAL NETWORK
REAL TIME CLOCK BOARD (OPTIONAL)or NETWORK CIRCUIT (OPTIONAL)
ANALOGUE OUTPUTS
HOT WATER VALVE / EXTERNAL RADIATOR CONTROL
COLD WATER VALVE
EPROM WITH APPLICATIONPROGRAM
RS422/RS485 BOARD (OPTIONAL) FOR CONNECTION TOSUPERVISORY/TELEMAINTENANCE SYSTEMS
JUMPER TO SELECT ANALOGUE INPUTB5 (J14) - B6 (J15) IN 0÷1V OR 4÷20 mA1-2 = 4÷20 mA 2-3 = 0÷1V
HOT WATER TEMPERATURE SENSORROOM RELATIVE HUMIDITY SENSOR
EXTERNAL AIR TEMPERATURE SENSOR
RECIRCULATING WATER / CW TEMP. SENSORDELIVERY AIR TEMPERATURE SENSOR
ROOM AIR TEMPERATURE SENSOR
CIRCUIT 1. HIGH PRESSURE-STATLOW PRESSURE-STAT & PHASE SEQUENCE CONTROL RELAYCLOGGED FILTER PRESSOSTAT (OPZ)FLOW SWITCH PRESSOSTATREMOTE SWITCH-ON AND SWITCH-OFF INLET
FLOODING DETECTORHUMIDIFIER INTERFACE MODULE (high level)ELECTRICAL RESISTANCE SAFETY THERMOSTATCIRCUIT 2. HIGH PRESSURE-STATCIRCUIT 2. LOW PRESSURE-STAT
B8+24VccB7
GG0
VG0VG1
Y1Y0
ID11-220V∼ID11-24V∼ID11-Com
--------ID12-220V∼ID12-24V∼ID12-Com
NO11C11
NC11
--------NO10
C10NC10
--------NO9
C9NC9
NO8C8
--------NO7
C7
--------NO6
C6
--------NO13
C13
B6AVSSB5B4AVSSB3B2AVSSB1
IDCM2ID10ID9ID8ID7ID6
NO3C3
--------NO4C4
--------NO5C5
--------NO12C12
IDCM1ID5ID4ID3ID2ID1
C1NO1
--------C1NO1
24V∼
0
24V∼
0
N.O.COMN.C.
N.O.COMN.C.
mP20 DX-DX/S-ES-TC-CW Version 1.4
DIGITAL INPUTS
ANALOGUE INPUTS
DIGITAL INPUTS
DIGITAL OUTPUTS
GNDRX/TX -RX/TX+
LOCAL NETWORK
DIGITAL OUTPUTS
HUMIDIFIER INTERFACEMODULE
mP
20 S
cree
n F
low
Ch
art
DX
, D
X-S
, E
S,
TC
, C
W
(ve
rsio
n 1
.4.)
Su
bro
utin
e S
ett
ing
Ro
om
(T
, U
R)
Su
bro
utin
e S
ett
ing
Ala
rms
Su
bro
utin
e S
ett
ing
Hu
mid
ifie
r
Su
bro
utin
e S
ett
ing
Clo
ck A
nd
Tim
e B
an
ds
RO
OM
SE
TT
ING
HU
MID
IF. S
ET
TIN
G.
AL
AR
MS
SET
TIN
G C
LO
CK
FU
NC
TIO
NS
ME
NU
2
41
AL
AR
MS
DIS
PLA
Y S
ET
TIN
G D
ISPL
AY
SE
TT
ING
S S
ER
VIC
E
11
ME
NU
- sc
ree
n 1
Serv
ice (
ME
NU
3)
Se
ttin
g d
isp
lay
sub
rou
tine
(M
EN
U 2
)
Ala
rm d
isp
lay
sub
rou
tine
(re
ad o
nly
)
Se
ttin
g s
ub
rou
tine
(M
EN
U 2
)
Rea
d o
nly
Rea
d a
nd
wri
te
Sof
twar
e C
onfi
gura
tion
s R
emot
e C
ontr
ol O
pera
t. on
Mem
ory
ME
NU
3
76
Har
dwar
e C
onfi
gura
tion
s D
elay
Set
ting
s M
anua
l Con
trol
76a
hh:
mm
gg/
mm
/aa
AL
--
Ala
rm D
escr
ipti
on
20
Su
bro
utin
e A
larm
s
17:1
2 0
5/07
/98
A
L07
Out
door
sen
sor
lim
its
pass
ed
21 D
ISP
LA
Y O
F H
IST
OR
ICA
LSE
QU
EN
CE
OF
ME
MO
RIS
ED
AL
AR
MC
ON
DIT
ION
SC
lock
/cal
enda
r se
ttin
gH
our/
Min
utes
XX
:XX
DD
/MM
/YY
XX
/XX
/XX
Wee
kday
XX
68
Su
bro
utin
e C
lock
Fa
cilit
y
UN
IT O
N-O
FF
CY
CL
E(M
ax 3
On-
Off
cyc
les
dail
y)E
nabl
ed:
No/
yes
70
Wee
kday
sO
n 0
0:00
Off
00:
00O
n 0
0:00
Off
00:
00O
n 0
0:00
Off
00:
00
71
Sat
urda
y an
d pr
e-ho
lida
ysO
n 0
0:00
Off
00:
00O
n 0
0:00
Off
00:
00O
n 0
0:00
Off
00:
00
72
Sun
day
and
holi
days
On
00:
00
O
ff 0
0:00
On
00:
00
O
ff 0
0:00
On
00:
00
O
ff 0
0:00
73
Pro
gram
med
cyc
le:
N
Wee
kday
To
chan
ge p
ress
>>
69
No
Yes
PR
OG
RA
M.
XX
dd
/mm
/yy
MO
TU
WE
TH
FR
SA
SU
N
N
N
N
N
P
F
74
Se
ttin
gs
dis
pla
y su
bro
utin
e
Set
back
mod
eN
o/Y
esM
in T
emp.
°C
XX
.XM
ax T
emp.
°C
XX
.X
46
Coo
l Set
P.
°C X
X.X
Sen
siti
vity
°C
X.X
Tim
e co
nsta
nts
XX
XX
Del
. Tem
p. L
imit
°C
XX
42 Coo
l Set
P.
°C X
X.X
Hea
t. S
et P
.°C
XX
.XS
ensi
tivi
ty°C
X
.X
43
Set
back
mod
eY
esM
in T
emp
°CX
X.X
Max
Tem
p °C
XX
.X
46
b
Rel
ativ
e H
umid
ity
Deh
umid
. Con
trol
:
No
44 Hum
idif
icat
ion
Hum
id. S
et P
.
rH
%
XX
Hum
. Pro
p. B
and.
rH
%
XX
45
Rel
ativ
e H
umid
ity
Deh
umid
. Con
trol
:
Yes
Deh
umid
Set
.
R
H%
X
XD
ehum
.pro
p.ba
nd. R
H%
X
X
44
b
Set
back
mod
eM
in R
el H
um.
rH%
X
XM
ax R
el H
um. r
H%
XX
47
ST
AT
US
Pro
gram
me
Ver
sion
mP
20 3
.5
18.0
6.98
09(S
EQ
UE
NT
IAL
DIS
PL
AY
OF
AL
AR
MS
IN P
RO
GR
ESS
)
(hh:
mm
X
X D
D/M
M/Y
Y)*
Roo
m T
emp.
°C
XX
.XD
eliv
ery
Tem
p. °
CX
X.X
Roo
m H
umid
. rh%
XX
02
hh:
mm
XX
.X °
C X
X%
rH
Deu
mid
ific
atio
nR
e-he
atM
an/F
orce
C
ycle
/Tim
e
01
Com
pres
sor
1.1
ON
Com
pres
sor
1.2
ON
Com
pres
sor
2.1
ON
Com
pres
sor
2.2
ON
03
Ele
ctri
c re
-hea
t 1O
NE
lect
ric
re-h
eat 2
- -
Hot
Wat
er V
alve
Ope
n X
XX
%
04
Out
side
air
°
CX
X.X
Clo
sed
circ
uit
°
CX
X.X
Hot
Wat
er
°C
XX
.X
08
a
Hum
idif
ier
- -
Val
ve I
ntak
e-
-V
alve
Sin
take
- -
Pro
d. V
ap.
kg
/hX
X.X
07
Ene
rgy
Sav
ing
--
Col
d W
ater
Val
veO
pen
X
XX
%
ES
Chi
lled
Wat
er V
alve
Ope
n X
XX
% TC
e C
W
ES
Out
side
air
°C
XX
.XC
old
Wat
er °
CX
X.X
Hot
Wat
er °
CX
X.X
08
bT
C a
nd
CW
05
06
Se
rvic
e S
ub
rou
tine
Uni
t Typ
e: D
X, D
X-S
, ES
, TC
Com
pres
sors
No.
XE
lect
ric
Reh
eat
XH
ot W
ater
Reh
eat
No/
Yes
84a
Hot
Gas
Coi
lN
o/Y
esE
xter
nal D
ehum
id.
No/
Yes
Ext
erna
l Hum
idif
.N
o/Y
es
88 Hum
idif
ier
Mod
.:X
XX
V:2
30/4
00 P
h. 1
/3 T
AM
: XX
XS
team
Cap
. kg
/h:
XX
Nom
. Cur
r. A
:X
X.X
X
89 Off
set A
dj. (*)
SEN
SOR
Rea
d va
lue
°C
XX
Adj
ustm
ent
°
C
0.0
90-9
3 Clo
sed
Cir
cuit
Set
up
Set
Poi
nt°C
XX
Rad
-Coo
ler
O
n-O
ff /
Mod
ul.
85a
Clo
sed
Cir
cuit
Set
up T
emp.
E.S
.°C
XX
Sum
mer
Tem
p.°C
XX
Rad
-Coo
ler
O
n-O
ff /
Mod
ul.
85
bUni
t Typ
e:C
W
Ele
ctri
c R
ehea
tX
Hot
Wat
er R
ehea
tN
o/ Y
es
84
b
Chi
lled
Wat
er S
etup
Deh
um. C
ycle
Sta
rt S
et P
oint
°C X
XH
igh
Tem
p.°C
XX
Ext
erna
l Deh
umid
.N
o/Y
esE
xter
nal H
umid
if.
No/
Yes
88
b
87
CW
DX
, DX
-ST
CE
S
Clo
sed
Cir
cuit
Set
up
Chi
lled
Wat
er A
ctiv
. S
et P
oint
°C X
X
86
mP
20 S
cree
n F
low
Ch
art
DX
, D
X-S
, E
S,
TC
, C
W (
pag
e 2
)
(ve
rsio
n 1
.4.)
Su
bro
utin
e M
an
ua
l Co
ntr
ol
Man
ual O
verr
ide
Uni
t sta
r-up
N
O/Y
ES
Com
pres
sor
1
NO
/YE
SC
ompr
esso
r 2
NO
/YE
S
95
Man
ual O
verr
ide
Uni
t sta
rt-u
p
NO
/YE
SY
0 R
amp
%
XX
XY
1 R
amp
%X
XX
96
Man
ual O
verr
ide
Deh
umid
ific
atio
n
NO
/YE
SR
ehea
ting
1
NO
/YE
SR
ehea
ting
2N
O/Y
ES
97
Man
ual O
verr
ide
Hum
idif
ier
D
rain
Val
veN
98
DX
, E
S,
TC
CW
Man
ual O
verr
ide
Y0
Ram
p %
X
XX
Y1
Ram
p %
XX
X
99
DX
Pow
er o
n D
elay
sX
XX
LP
-Sta
rt D
elay
sX
XX
Sta
rt T
rans
.
sX
XT
+H
Al.
Del
ay
min
XX
94
Su
bro
utin
e D
ela
y S
ett
ing
s
Ant
i-H
unti
ng T
ime
Con
stan
t of
Roo
mT
emp.
Con
trol
min
XX
94b
Sof
twar
e C
onfi
gura
tion
s R
emot
e C
ontr
ol O
pera
t. on
Mem
ory
ME
NU
3
76
Har
dwar
e C
onfi
gura
tion
s D
elay
Set
ting
s M
anua
l Con
trol
76a
Su
bro
utin
e O
pe
rate
on
Me
mo
ry
Pas
swor
d S
etti
ngs
Mem
ory
Cle
ar-u
p F
acto
ry P
re-s
et
80
Set
-up
Pas
swor
dsfo
r A
cces
sing
to:
Set
ting
s00
000
Ser
vice
0000
0
81
The
Mem
ory
Cle
ar-u
pIn
volv
es T
he L
oss
ofal
l Rec
orde
d D
ata
Con
firm
?
_
NO
YE
S
82
The
Set
Poi
nt R
eset
Invo
lves
The
Los
s of
all R
ecor
ded
Dat
aC
onfi
rm?
_N
O Y
ES
83
scre
en 82
scre
en 81
scre
en 82
Hum
idif
ier
sett
ing
Max
ste
am p
rodu
ctio
n se
ttin
gkg
/hX
X.X
(30-
100
% n
omal
P.)
Su
bro
utin
e T
ara
ture
Ala
rms
Tem
pera
ture
Ala
rms
Hum
idit
y al
arm
s R
un h
our
2nd
Lev
el A
larm
s
ME
NU
4
Coo
l. S
et P
.
°C
XX
.XR
oom
Hig
h T
. °
C
XX
Hea
t Set
P.
°CX
X.X
Roo
m L
ow T
. °
CX
X
50
Deh
um. S
et P
.
rh%
X
XH
igh
Rel
. Hum
. r
h%
XX
Hum
. Set
P.
rh%
X
XL
ow R
el. H
um.
rh%
XX
51
2nd
Lev
el A
larm
sA
irfl
ow/f
an
NO
/YE
SC
ompr
esso
rs
N
O/Y
ES
Ele
ctri
c he
ater
NO
/YE
S
61 2nd
Lev
el A
larm
sA
ir f
ilte
rs
NO
/YE
SH
umid
ifie
r
N
O/Y
ES
Low
Roo
m R
.Hum
. N
O/Y
ES
62 2nd
Lev
el A
larm
sH
igh
Roo
m T
emp.
N
O/Y
ES
Low
Roo
m T
emp.
N
O/Y
ES
Hig
h R
oom
Hum
id.
NO
/YE
S
63 2nd
Lev
el A
larm
sF
lood
ing
NO
/YE
SS
mok
e/F
ire
NO
/YE
SE
xt.R
oom
sen
sor
N
O/Y
ES
64 2nd
Lev
el A
larm
sM
ain
sens
or
NO
/YE
SA
uxil
. sen
sor
NO
/YE
SL
ocal
net
wor
k
NO
/YE
S
65 2nd
Lev
el A
larm
sW
rong
Pas
swor
d
N
O/Y
ES
Uni
t Run
Hou
rs
NO
/YE
SF
ilte
r R
un H
ours
NO
/YE
S
66 2nd
Lev
el A
larm
sC
ompr
. Run
Hou
rs
NO
/YE
SR
ehea
t R
un H
our
N
O/Y
ES
Hum
idif
ier
Run
H.
NO
/YE
S
67
Hu
mid
if S
ett
ing
Su
bro
utin
e
(SP
EC
IFIC
RE
SOU
RC
E)
Tot
. Run
hou
rsX
XX
XX
Ala
rm L
imit
h.
XX
XX
X
Res
et--
52 SEQ
UE
NT
IAL
DIS
PL
AY
OF
RU
N H
OU
R L
IMIT
S O
F A
LL
CO
MP
ON
EN
TS
53-6
0
scre
en 51
scre
en 50
scre
en 52
scre
en 61
49
Su
bro
utin
e R
em
ote
Co
ntr
ol
Aut
om. S
wit
ch-O
ver
Bas
e / S
td-b
y P
air
Cyc
le T
ime
h
XX
X1
Uni
t On
Lim
it N
78
Aut
om. S
wic
h-O
ver
Bas
e / S
td-b
y P
air
Cyc
le T
ime
h
XX
XN
o. o
f U
nit (
2-5)
X
79
LA
N
I/O
via
Con
tact
NI/
O v
ia S
eria
lN
Id#
01 S
peed
1200
Uni
ts S
wit
ch-O
ver
N/Y
77
77 -
Uni
ts S
wit
ch-O
ver
NO
YES
Usa
ge o
f T
+H
val
ues
Mod
e:
Loc
al /
Mea
nA
ut.C
hang
eove
rM
ean/
Loc
.Dif
f.°C
2.
0