INSTRUCTION MANUAL

PROGRAM FOR AIR CONDITIONING

REGULATION PROGRAM FOR PRECISION AIR

CONDITIONING UNITS
- CHILLED WATER (CW)
- DIRECT EXPANSION (DX)
- TWIN COOL (TC)
- ENERGY SAVING (ES)

mP20 II

INSTRUCTION MANUAL

GB
© UNIFLAIR 2001

mP20 - Rev. 1.0 - Date: 16-02-2001 EN 1 (44)

INSTRUCTION MANUAL

PROGRAM FOR AIR CONDITIONING

Some characteristics of special-order units may be different from

those described in this manual.

UNIFLAIR ITALIA S.r.l.

Via dell’Industria, 10
35020 BRUGINE (Padova) Italy
Tel. +39 (0)49 9713211
Fax. +39 (0)49 5806906
Internet: www.UNIFLAIR.com
E-Mail: info@UNIFLAIR.com

Release: 1.0 Date: 16 - 02 - 2001

Checked by:

2 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

 INSTRUCTION MANUAL

PROGRAM FOR AIR CONDITIONING

CONTENTS

Page
Program Identification 4
Display information with unit OFF 4
Unit start up conditions 5
Start up and Shut down of Unit 5
Display information with unit ON 6
Manual override of switching on / switching off 7
Visualisation of the Unit state. 8

Access to consultation or programming data 8

Access Levels 10
Variation of parameters 11

Program Versions 12

#
Special Functions 12

Hourmeter reading and Programming 13

Draining of the humidifier cylinder 14
I/O
Reading of Inputs and Outputs States 15
Unit configuration devices: "Hardware Configurations" 16
Calibration of probe offsets 20
Optional Sensors 20
Changing the Password 20
Memory data operations 21
Operations to follow in the event of EPROM substitution 21
Delay Settings 22
Manual Commands ("Manual Control") 23

Unit remote control 24

Management of two units 25
Local Network Unit (LAN) 26

Temperature and Humidity Set point 27

Setback mode 29

Clock / Calendar – Time Bands 30

nd
Addressing of 2 level alarm 32
Alarm Readings 32
Default Values 37
Appendix - Screen flow chart 38

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PROGRAM FOR AIR CONDITIONING

PROGRAM IDENTIFICATION
This manual describes the standard regulation characteristics for air conditioning units. Some characteristics of
special-order units may be different from those described in this manual.

Family Release Language Update LAN Version

…… v .. EN .. / .. / 2001 LAN

DISPLAY INFORMATION WITH UNIT OFF

A 12:30 31/05/00
INITIATING ... B Temperature 23.5°C
PLEASE WAIT C C

When the unit is connected to the power supply but not running, three TO START UNIT
fields are active on the user terminal display: PRESS ON KEY
1.
A. Time and date (only in units with clock circuit);
WARNING: STOPPED
BY REMOTE CONTROL
B. Room temperature; 2.

C. OFF indication with the following alternatives: WARNING: STOPPED

BY SUPERVISOR
3.
1. ON/OFF button;
2. Remote control;
PROGRAMMED STOP
3. SUPERVISION system;
RE-START. AT 13:15 MO
4. Timer programme - in the units fitted with a clock circuit - with display of 4.
the next start time;
5. Automatic unit inversion cycle; WARNING: UNIT
6. Manual override switch off. ON STAND-BY !
5.

UNIT MANUAL OFF

PRESS ON KEY
6.

If the unit is programmed in the setback mode the following message appears WARNING: UNIT
at regular intervals in field C: IN SETBACK MODE

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PROGRAM FOR AIR CONDITIONING

UNIT START UP CONDITIONS

In order that the unit can be switched on it is necessary that there are no active alarms and that one of the following
conditions is verified:
ON

• The operator must press the OFF button so that the green terminal LED switches on;
• In the event of remote control command (see screens 130a or 130b), the digital input ID1 must be in the closed
contact position;
• the unit must be switched on by the supervisor in the event that it is connected to the unit and the unit is set (see
screens 130a or 130b);
• in the event of daily or weekly time bands, they must enable control switching on.

The display and the green light on the "ON/OFF" button inform the user of the system state.

START UP AND SHUT DOWN OF THE UNIT

The unit can be started in one of the following modes:

ON
ON

LOCALLY: the unit is controlled by the OFF button (on pressing the button OFF

once the unit starts up, on pressing the button a second time the unit switches
off). Pressure placed on the ON/OFF button is confirmed by an acoustic 12:30 31/05/00
signal. Temperature 23.5 °C
In direct expansion units the control commands the start up of the START DELAY
compressor in such a way that continuous start up cycles and unit shut down PLEASE WAIT …
is not possible (a maximum of 6 start’s each hour). Start up of the compressor
therefore can be delayed after the ON/OFF button push.
The assumed unit state is memorised; on regaining power the unit assumes ON

the previous state before power loss, the unit will restart if it was already OFF

operating. Re-starting the unit can be delayed by a period of time equal to the
"power on delay" value (see screen 80). 12:45 31/05/00
Shut down of the unit fans is delayed by 10 seconds after the ON/OFF button Temperature 22.4 °C
push. SWICTHING OFF
PLEASE WAIT …

Automatic MODE: the control is set in such a way that the unit switches on and shuts down due to the following:
1. a remote ON/OFF contact (see screens 130a or 130b);
2. a supervision system (only possible in units provided with serial board);
3. automatically programmed time bands (not only unit equipped with a clock circuit);
4. automatic inversion cycle of the base unit.
If programmed in the set back function, the unit switches on automatically also when the set thermo-hygrometric
limits are exceeded.

ON

PLEASE NOTE: in the automatic functioning mode the OFF button can be used only by forcing the switch on or
shut down through inserting the password "SETTINGS" (see paragraph "MANUAL START-UP /SHUT DOWN ").

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PROGRAM FOR AIR CONDITIONING

DISPLAY INFORMATION WITH UNIT ON

THE STATUS SCREEN

A
B
When the unit is in operation, the STATUS screen appears on the display,
and has 5 active fields:
C D E F

A. The time (only in the units equipped with a clock circuit), room
temperature, room humidity (only with humidity sensors); MAN REMOTE ALARM LAN 01

B. Current operation: according to the working conditions, the following FORCE SUPERV. SERV. LAN 02
indications are provided:
• "COOLING"/"HEATING"/"DEHUMIDIFICATION"; WATCH CYCLE
• "REHEATING"/"HUMIDIFICATION"

TIMED
C. Manual override with regard to the automatic cycle:
• “MAN” in the operating mode with manual commands;
• “FORCE” if the unit is turned on by manual override;
• “WATCH” when the unit enters the "setback mode" to maintain the
thermohygrometric parameters within the established limits.

D. Indication of the slave status of the unit which may be:

• “REMOTE”: to a remote control;
• “SUPERV.”: to a supervision system;
• “CYCLE”: automatic inversion cycle between the base unit and the stand-by unit;
• “TIMED”: to a timer programme.

E. Indication of fault, which may be:

• “ALARM”: if there is an alarm;
• "SERV": if the run hours counter threshold is exceeded.

F. Indication of the unit, identified by "LAN 01", "LAN 02", …. with more than one connected unit connected in LAN
that are shown as a shared terminal.
P
In this case by pressing the and buttons at the same time it is possible to move from one unit to the
next, following the order with which they were addressed.

12:22 26.3°C 55% 12:22 26.1°C 57%

Cooling Cooling ……
P P
LAN01 LAN02

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MANUAL OVERRIDE OF SWITCHING ON / SWITCHING OFF

It is possible to stop or start the unit manually using one of the automatic operation
devices: ON

OFF
• Contact ON/OFF remote; SWITCH ON/OFF
• Supervision system; MANUAL OVERRIDE
PLEASE TYPE IN
• Automatic inversion of unit in stand-by; PASSWORD: _ 00000
• Automatic time band function. (screen 201)
ON
……
By pressing the OFF button, the display automatically shows screen 201 with any
manual overrides of the automatic function mode.
To access the subroutine, enter the SETTING password found in the envelope

attached to this manual and press the button.

IMPORTANT: On entering three incorrect key words the alarm state is activated
and memorised (see paragraph "ALARM READINGS").

MANUAL OVERRIDE PROCEDURE ……

If the unit is commanded by one of the automatic devices, screen 202 is shown.
If the unit has been stopped by one of the automatic devices, screen 203 is shown.
UNIT SWITCHED ON BY
(∗)
On the second line (∗) description of the device through which the unit is managed TO STOP MANUALLY
PRESS ON/OFF KEY
appears:
(screen 202)
• REMOTE CONTROL;
• SUPERVISION SYSTEM; UNIT SWITCHED OFF BY
(∗)
• AUTOMATIC INVERSION OF UNIT IN STAND-BY; TO START MANUALLY
• AUTOMATIC TIME BAND FUNCTION. PRESS ON/OFF KEY
(screen 203)
ON
ON
To override the unit and turn it off or on, press the OFF button again; in this case: OFF

• if the unit is overridden and turned off, in field C of the display appears the
message “ UNIT TURNED OFF - PRESS THE ON/OFF KEY ”;
……
• if the unit is overridden and turned on, in field C of the STATUS SCREEN
appears the message “FORCE”.
UNIT MANUALLY OFF
TO GO BACK TO
(∗)
PRESS ON/OFF KEY
EXITING MANUAL OVERRIDE (screen 204)
To exit from manual override, shown in field C of the STATUS SCREEN with the
ON
UNIT MANUALLY ON
TO GO BACK TO
message “FORCE”, press the button and enter the SETTING password.
OFF
(∗)
If the unit is turned off, screen 204 appears. PRESS ON/OFF KEY
(screen 205)
If the unit is turned on, screen 205 appears.
The line with the asterisk (∗) shows the system commanding the unit. ON

OFF

Having exited from manual override, the message “FORCE” disappears from field
C of the STATUS SCREEN.

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VISUALISTAION OF THE UNIT STATE

The functioning parameters of the unit (temperature, humidity, …) are readable by pressing the button and

scrolling the screens using the and buttons. At the end of the reading cycle the STATUS SCREEN
appears.

By pressing the button the STATUS SCREEN appears.

Information on the display is shown in the SCREEN FLOW CHART in the appendix; however it is to be noted that
only the information or data relative to the chosen configuration appears:
- time and date appear only in the controls with base circuit supplied with clock circuits;
- temperature sensors which are not present are shown as "NC" in the place of the corresponding reading.

ACCESS TO THE DATA

READING OR PROGRAMMING
Access to the consultation and programming of the control parameters is direct using the user terminal buttons:

1. ACCESS TO THE CONSULTATION (READ ONLY): possibility to consult data yet without the possibility to
perform any modifications;

2. ACCESS TO PROGRAMME MODE (READING AND WRITING) possibility to vary memorised data and
requires:
P
2.a. pressure on the button for one second (until hearing the acoustic signal);
I/O
2.b. immediate pressure on one of the following buttons: , , , , , ;
2.c. entry of the PASSWORD found in the sealed envelope attached to this manual and addressed to the
maintenance manager (see paragraph "ACCESS LEVELS").

The yellow LED associated to each button has the following function:
- LED on: access to the screens for reading only ;
- LED flashing: access to the screens for programming (by pushing the selected button immediately after the “P”
button)

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CONSULTATION MODE PROGRAMMING METHOD

( LED on) (Flashing LED)
Consultation of the unit hourmeter and its Access to screens to reset the hourmeter
devices and screens connected to
P
+ and to modify threshold value; access to
operations of ordinary maintenance. screens connected to ordinary
maintenance operations (draining of the
humidifier cylinder for cleaning or
substitution).
nd
Sequential reading of the last 25 alarm Access to screens for the setting of 2
events.
P
+ level alarms.
Consultation of the input and output Access to the unit configuration and
I/O
board states.
P
+ I/O
manual commands.
Consultation of clock/date and time bands Access to screens containing operations
(only if the optional clock circuit is present).
P
+ connected to the clock circuit: setting of
time bands for unit switch on and shut
down.
Consultation of the set point. Access to screens to modify set point.
P
+
Consultation of remote command settings. Access to screens to set remote
P
+ commands (by remote control or by the
supervisor), of the stand by unit and LAN.

Example: read only access

12:30 31/05/00 AL01

AIR FILTER BLOCKED

Example: reading and writing access

ACCESS _2nd Level Alarms _2nd Level Alarms

TO SETTINGS Air Flow/Fans Y/N Air filters Y/N
P + ENTER PASSWORD Compressors Y/N Humidifier Y/N …….
_00000 El.Heaters Y/N LowRoomR.Hum Y/N

A hyphen ( _ ) indicates the screen field during programming.

To move from one screen to another press one of the vertical scrolling buttons or ; any direction (up or
down) you may choose, you will return to the first screen of the SUBROUTINE. To move the cursor to the wanted

line press the button.

From any consultation or programming screen it is possible to return to the unit STATE field by pressing the

. button

IMPORTANT: entry an incorrect password is pointed out by a brief acoustic signal. After entering three incorrect
passwords, the alarm state is activated (see paragraph "ALARMS READING").

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ACCESS LEVELS
In the APPENDIX "SCREEN FLOW CHART" is shown with reference and programming screens.
Screens which are displayed directly refer to the chosen configuration (ex.: screens relative to the timer operations
of the electric heaters do not appear if the unit is not provided with this feature).
User interaction with the microprocessor is developed on 3 levels:

1. CONSULTATION METHOD: visualisation of the parameters and reading of the following data:
• Time and date (if the system is equipped with the clock circuit);
• Environmental conditions;
• Measured values of the sensors connected to the system;
• set point of functional parameters;
• memorised and past alarms (with past time and dates only if the system is equipped with the clock circuit).

2. PROGRAMMING METHOD of the OPERATIVE PARAMETERS : to modify the set values of:

• : the working hours threshold of each component to signal the maintenance intervention request;

• : addressing of alarms of the second level;

• : clock/calendar and time bands;

• : set point of the functional parameters;

• : remote command parameters, the local network, supervision and rotation between units.

This level is accessible using the pass word "SETTINGS".

3. PROGRAMMING METHOD of the CONFIGURATION PARAMETERS and MANUAL COMANDS that allow the
manual start-up of various unit components, independent to the environmental conditions and following
operations:
I/O
• : configuration of unit type, devices password modification and operations on all data present in the
microprocessor memory;

this level is accessible only through using the password "CONFIGURATIONS"/"SERVICE" found in the
closed envelope attached to this instruction manual and addressed to the maintenance manager.

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VARIATION OF PARAMETERS
Modification of set parameters and/or configuration in a subroutine (set point, differential…), is as follows:

1. proceed to screens in the programming method;

2. select with the or buttons the screen that shows the parameter (see "SCREEN FLOW CHART"); the
cursor ( _) flashes in the top left corner;

3. press the button to move the cursor to the parameter to be modified;

4. to vary the parameter value – this may be numerical or Boolean (YES/NO) – with the or button
(numeric values can be varied only within the set control limits);

5. finally press the button to confirm the value.

• To return to the STATUS screen press the button. In the unit hardware configuration, pressing the
button however returns to the initial "Hardware Configuration" (screen 50);

• To modify parameters in other screens press the button until the cursor is at the start of the first line;

press the or button to move to the desired screen.

Example: Unit settings for start up and/or shut down by remote.

12:30 31/05/00
Temperature 23.5°C
TO START UNIT
PRESS ON KEY

ACCESS
TO SETTINGS
P + ENTER PASSWORD: ……
***** 220

(* * * * *: Input the password found in the envelope attached to this manual)

_I/O VIA CONTACT N I/O VIA CONTACT _N I/O VIA CONTACT _Y

I/O VIA SERIAL N I/O VIA SERIAL N I/O VIA SERIAL N
Id#.: 001 SPEED: 1200 Id#.: 001 SPEED: 1200 Id#.: 001 SPEED: 1200
130a 130a 130a

12:30 31/05/00

REMOTE

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PROGRAM VERSION

Using the button it is possible to visualise the regulation program version

contained in the EEprom. Programm Version
This information is extremely important if it is necessary to add a new unit to a
group of connected units in the local LAN network, in that all the EEprom of the
controls must have the same program version.
(screen 120)
When referring to a help centre it is important to precisely indicate regulation
program version contained in the EEprom.

SPECIAL FUNCTIONS

#
In a few program versions, by pressing the button it is possible to visualise a
few special functions, personalised on the clients request.
Possible special functions are illustrated in the APPENDIX.

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P +

HOURMETER READING AND PROGRAMMING

This part of the programme enables the setting of maintenance intervals for the components of the unit,
establishing a threshold for operation hours. When the device concerned reaches that limit, the microprocessor
signals the maintenance request , activating an alarm and displaying the message “SERV” on the STATUS
SCREEN.
The number of hours cumulated and the intervention threshold can be read in the screens. To modify the limits
and/or reset the hourmeter it is necessary to enter into the subroutine in programming mode.

ACCESS
TO SETTINGS
P ENTER PASSWORD
+
_00000
(screen 210)

TIMER SETTING (SCREENS 10-18)

Screens 10 to 18 relate to the following unit components:
1. Air filters;
FAN
2. Compressors; TOT. RUN HOURS 00000
st nd
3. Heating (1 and 2 stage); ALARM LIMIT H 10000
RESET --
4. Humidifier;
(screen 10)
5. Unit.

and enables, for each of them: /

• reading of the cumulative number of service hours; COMPRESSOR
TOT. RUN HOURS 00000
• setting of the SERVICE intervention threshold for maintenance; setting the ALARM LIMIT H 10000
threshold at 0 inhibits the signalling of the SERVICE request; RESET --
(screen 11)
• zeroing of the timer ("RESET" = OK), e.g. after the service intervention or the
replacement of the component.
/
Values can be changed only in the context of permitted setting fields. ELECTR. HEATERS
TOT. RUN HOURS 00000
ALARM LIMIT H 10000
RESET --
(screen 12)

/
AIR FILTER
TOT. RUN HOURS 00000
ALARM LIMIT H 20000
RESET --
(screen 13)
……

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DRAINING OF THE HUMIDIFIER CILINDER

(only in programming mode)

The steam cylinder needs to be periodically cleaned of the build up of lime; before
removing the cylinder for cleaning or substitution it is necessary to drain completely
the water from the boiler.
To complete this operation it is necessary access to the hourmeter screen in ……
programming mode:
Humidifier Cilinder
- the cursor will appear on the third row of the display (---); Maintenance
_ ---

(screen 19a)
- press the (or ) button to visualise the command "_SWITCH OFF AND

EMPTY" or press the button to exit; Humidifier Cilinder

Maintenance
_ Switch off and Empty

- press the button; the command "SWITCH OFF AND EMPTY" will be
confirmed by a brief acoustic signal and the message "Please wait…" will appear
on the display;
Humidifier Cilinder
Maintenance
- wait about 2 minutes;
Please Wait…
(screen 19b)
- a brief acoustic signal confirms that the draining process is complete and the
message "EMPTY CILINDER" appears on the display; ……(after 2 minutes)
Humidifier Cilinder
- open the humidifier magnetothermal switch and complete cylinder Maintenance
cleaning/replacement; Press Enter to ESC
EMPTY CILINDER
(screen 19c)
- only after all the maintenance operations on the cylinder have been carried out

press the button to restore normal functioning of the humidifier. To restore humidifier functioning
press

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I/O

INPUTS AND OUTPUTS STATUS READING

I/O
This part of the program is directly accessible by pressing the button. It is possible to verify the the state of the
input and output boards.
The initials visualised in the display are the same used to identify components within the unit and in the relative
documentation (electrical diagrams, …).

1. Digital Inputs (ID1 - ID10)

FS = air pressostat I/O

PSF = dirty filter pressostat ID1 Remote On/Off C

BP1/ BP2 = cooling circuit 1 / 2 low pressure pressostat; ID2 FS C
FL = water flow gauge (only CW units) ……
AP1 / AP2 = cooling circuit 1 / 2 high pressure;
(screens 40-42)
TSR = Electric heaters security thermostat;
Level SBU = cylinder high level signal from the humidifier interface board
/
SAS = flood detector
SFF = fire/smoke detector B1 Room T. 00.0
B2 Delivery T. 00.0
ATA-BTA-AUA-BUA = high/low temperature/humidity external sensors alarm ……
A = input open
C = input closed (screens 43-44)
……

2. Analogue Inputs (B1 - B8)

Provides the reading of the temperature and humidity sensor connected to the
board.

3. Digital Outputs (C1 - C11)

……
CV1 (CV) = Fan contactor
CC1, CC2 = compressor contactor
/
CR1, CR2 = electric heater contactor
CU = humidifier contactor C1 CV1 (CV) OFF
C2 CC1 OFF
EVC = humidifier fill solenoid valve C3 CC2 OFF
EVS = humidifier drain solenoid valve ……
EVD = dehumidification solenoid valve (screens 45-47)

4. Analogue outputs (Y0 -Y1) /

VAF = cold water valve Y1 VAF 000
VAC/RAD = external radiators / hot water valve ……

(screen 48)

When a sensor is added or an optional sensor connected to the board is added, it is necessary to carry out the
"HARDWARE SET-UP" command or to set the optional sensors in screen 70, so that the boards registers the
inputs and outputs. Serial boards RS485 or RS422 and the clock circuit are exceptions.

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P + I/O

HARDWARE CONFIGURATION
……
P _ Hardware Config.
Access to the unit configuration is possible by pressing the programming Delay Settings
Manual Control
I/O
button until hearing a brief signal and by then pressing the button.
(screen 50)
After introducing the password (screen 220) screen 50 is shown containing three

options: move the cursor vertically to the chosen line with the button and

move to the screens pressing the button.

HARDWARE CONFIGURATION
The unit regulation program needs to be “configured”, that is adapted to the unit in which it is installed; in this phase
it is necessary to define all the elements of the unit and that the microprocessor must control.
As a rule this intervention is only required when the control is installed inside the unit and therefore is carried out in
the factory during final inspections; it can however be necessary to intervene due to further unit modifications.
The screens that refer to configuration are in the English language and are reserved for technicians.

ACCESS TO ACCESS TO _Hardware Config.

CONFIGURATION MENU CONFIGURATION MENU Delay Settings
P I/O
ENTER PASSWORD …… ENTER PASSWORD Manual Control
+
_00000 _* * * * *
(screen 220) (screen 220) screen 50

* * * * *: Introduce the password "SERVICE" ("CONFIGURATION PASSWORD") found in the envelope attached to this manual.

SCREENS 60a / 60b – UNIT DEVICES ……

Possibility to: UNIT TYPE DX
• Set the unit type: COMPRESSOR No. 2
- Direct expansion (DX for 'B' units or DX-S for 'AMICO' units); REFR. CIRC. No. 1
ELECTRIC REHEAT 3
- with energy saving (ES); (screen 60a) - DX, TC, ES
- twin cool (TC);
- chilled water (CW);
UNIT TYPE CW
• select the COMPRESSOR number, the number of cooling circuits and the
number of ELECTRIC HEATER stages.
ELECTRIC REHEAT 3
(screen 60b) - CW

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Depending on the type of unit (CW, DX, ES, TC) only a few of the screens from 61a to 63 are shown.

SCREENS 61a –61b: RAD COOLER CONTROL

Using screens 61a and 61b is it possible to set the water cooled circuit: /
- in direct expansion units; CLOSED CIRCUIT SETUP
- in twin cool or energy saving units during the mechanical cooling phase (with
SET POINT. °C 28.0
operating compressors only). RAD-COOLER ON-OFF
The control maintains the closed circuit water temperature at a value sufficient for (screen 61a) DX-DX/S-TC
condensation, included between the set point (“SET POINT” in screen 61a or
"SUMMER TEMP." in screen 61b) and the set point + a differential fixed at 6°C.
CLOSED CIRCUIT SETUP
RAD COOLER ON/OFF - Unità DX, DX/S, TC. TEMP. E.S. °C 08.0
SUMMER TEMP. °C 28.0
RAD-COOLER ON-OFF
(screen 61b) ES
ON Fans
OFF

T closed water circuit

"Set Point"
(default = 28°C)
6°C

RAD COOLER ON/OFF - Unità ES.

ON Fans
OFF

"Summer Temp."
T closed water circuit
(default = 28°C)
6°C

The temperature is controlled by the remote radiator fans (”Rad-Cooler”)

connected to the internal unit; this may be:
- "On-Off" type: the start up and switch off of the radiator fans is controlled;
- modulating type ("Modul"): the 0-10 V signal is managed from the analogic
output Y1 towards the radiator speed regulator.

RAD COOLER MODULANTE

100% Fan speed
10 V
Analogica
output
0V

"Summer Temp."
T closed water circuit
(default = 28°C)
6°C

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SCREEN 61b -RAD COOLER WINTER CONTROL

Screen 61b appears only in the energy saving versions and permits the setting of /
the control parameters of the summer rad cooler (as described in the previous CLOSED CIRCUIT SETUP
paragraph), and the winter rad cooler, or the water set point (“Temp. E.S.”) during TEMP. E.S. °C 08.0
the energy recovery phase. SUMMER TEMP. °C 28.0
RAD-COOLER ON-OFF
Switching between the two set point "Summer Temp." and "Temp. E.S." occurs (screen 61b) ES
automatically on the basis of the external air temperature.
In the winter control the water temperature in the closed circuit is maintained
sufficiently cold to power the energy saving coils: the value is between the set
“Temp. E.S.” (default value equal to 8°C) and "Temp. E.S." + a differential fixed at
2°C.
The three way valve that regulates the energy saving operation is controlled
however on the basis of the temperature difference between the conditioned
environment and the closed circuit water.

SCREENS 62 - TWIN-COOL CIRCUIT SETTING

Appears only in the Twin-cool version and provides the possibility to carry out the /
necessary settings to activate the change from mechanical cooling function to the CLOSED CIRCUIT SETUP
chilled water function.
CHILLED WATER ACTIV.
SET POINT °C 07.0
Unità TWIN COOL.
(screen 62) TC
Valvola acqua
fredda

Compressori

Chilled water activ. set

T acqua circuito chiuso
point (default = 7°C)

differenziale
fisso: 3°C

To avoid continually alternating between the two functioning modes a minimum

interval of 30 minutes exists between two consecutive activation’s of the cold
water valve.
If the Room High Temperature limit is exceeded (default: 30°C) the unit
automatically passes from the 'CW' function to the 'DX' function signalling the
"Cold water high temperature or broken valve " alarm.

SCREEN 63 – CHILLED WATER DEHUMIDIFICATION CYCLE AND HIGH

TEMPERATURE ALARM SETUP /
(only if a water temperature sensor is installed) CHILLED WATER SETUP
DEHUM. CYCLE START
During the dehumidification phase a specific control is activated that reacts as SET POINT °C 07.0
follows: HIGH TEMP. °C 15.0
(screen 63) CW
- the control sends to the chilled water production group a request for water at a
lower temperature to dehumidify; this command immediately activates the digital
output DO2;
- this is read by the temperature sensor on the chilled water input;
- when the read value reaches the "SET POINT" set in screen 63 the valve is
forced open to a maximum;
- if vice-versa the "SET POINT" is not reached, after 15 minutes an alarm state is
signalled ("Water too warm to get Dehumidification").
The chilled water temperature sensor allows the control to activate the alarm "High
chilled-water temperature" when the ‘HIGH TEMP is exceeded’ set in screen 63,
signals a possible anomaly of the chilled water production group.

18 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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PROGRAM FOR AIR CONDITIONING

SCREENS 64a-64b-65 SETTING OF HOT WATER OR HOT GAS RE-HEATING

AND EXTERNAL DEVICES FOR HUMIFICATION/DEHUMIDIFICATION /
HOT WATER REHEAT N
In screens 64a / 64b it is possible to select: HOT GAS COIL N
EXTERNAL DEHUMID. N
• the presence of the hot water re-heat coil device. EXTERNAL HUMIDIF. N
• the presence hot gas re-heat coil device (excluding CW units); (screen 64a)
• use of an external dehumidifier managed by the output DO9, that substitutes the
HOT WATER REHEAT N
dehumidification carried out with the resources of the unit;
• use of an external humidifier -ON/OFF- managed from the relay output DO6, to EXTERNAL DEHUMID. N
EXTERNAL HUMIDIF. N
substitute the integrated unit humidifier.
(screen 64b)

In screen 65 it is possible to set integrated humidifier model, the nominal tension,

/
the number of phases, current transformer model (TAM) and the steam production
capacity (‘Steam Cap.’). It is also possible to see the nominal current absorbed HUMIDIFIER MOD.: ----
V: ---- Ph.: ---- TAM: ----
("Nom. Curr.A"). STEAM CAP. Kg/h.: ----
Nom. Curr. A: 00.00
(screen 65)

SCREEN 64c – HOT WATER COIL

This screen is only visualised if the unit is fitted with electric heaters ('ELECTRIC
REHEAT' > 0) or a hot water coil ('HOT WATER REHEAT Si'). HOT WATER COIL
Possibility to set the set point that activates the switch between two heating ACTIVATION SET
systems. WATER TEMP. °C 00
Hot water valve
(screen 64c)

Electric heater

Hot water coil Activation

T hot water
Set point (default = 40°C)

differential
fixed: 5°C

mP20 - Rev. 1.0 - Date: 16-02-2001 EN 19 (44)

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PROGRAM FOR AIR CONDITIONING

SETTING OF THE SENSORS OFFSET

By using screens 67, 68, 69, 70 it is possible to correct the reading of the
temperature sensors ("ROOM TEMP.", "OUTDOOR TEMP.", "DELIVERY /
TEMP.", "CLOSED CIRC.") in case a difference between the measured value of OFFSET ADJ.
the sensor and the effective value is detected, measured with a precision (sensor)
instrument. READ VALUE °C 22.7
ADJUSTMENT °C 00.0
The adjustments can be done at intervals of 0.1 °C and the maximum adjustment (screens 66 … 69)
possible is between -9.9°C and +9.9 °C.

The adjustment ("Adjustment") is the quantity that needs to be added or

subtracted to obtain the correct value, measured with a precision instrument.
The Read value is the measurement transmitted by the sensor already corrected.

OPTIONAL SENSORS
At the first start of the board, during the configuration phase carried out in the
factory, the control automatically researches all the devices and sensors /
connected to the terminals, through analysis of the analogue and digital inputs. CL. FILTER P-STAT N
Whatever is inserted – by the installer – an optional sensor (dirty filer pressostat, FLOOD DETECTOR N
flood detector, fire/smoke detector or temperature and humidity sensors), it is SMOKE/FIRE-STAT N
T+H INSTRUMENTS N
necessary to specify this in screen 70. (see also screen 72a – command (screen 70)
"HARDWARE SET UP")

NOTE: the digital and analogue inputs for connection of the optional sensors are
specified in the unit electrical diagram.

SET-UP PASSWORD
Screen 71 permits the possibility to change the password for access:
- to the settings ("SETTINGS" password). See paragraph "ACCESS LEVELS", /
point 2.; SET-UP PASSWORDS
- to the configuration ("CONFIGURATIONS" password or "SERVICE" password). FOR ACCESSING TO:
SETTINGS 00000
See paragraph " ACCESS LEVELS ", point 3. SERVICE 00000
(screens 71)
Since access to the HARDWARE menu is denied if the correct password is not
introduced, it is advised to note down the new password before changing the old
password.

20 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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PROGRAM FOR AIR CONDITIONING

MANAGEMENT OF THE DATA IN THE MEMORY

Screen 72a manages the data contained in the microprocessor EEPROM.
/
PROGRAM SETUP. This is an operation that is carried out automatically in the PROGRAM SET-UP NO
event of EPROM substitution. It can be useful if data is ‘damaged’ (set-point, AL. PAGE CLEAR-UP NO
configurations, etc.) as it is possible to clean the memory (including data relative HARDWARE SET UP NO

to the unit HARDWARE configuration); where all the set point values reset (screens 72a)
automatically (see paragraph "DEFAULT VALUES").
After this operation it is necessary to re-configure the control and to proceed to the /
setting of the set-point when different from those of the default.
PROGRAM SET-UP NO
AL. PAGE CLEAR-UP NO
IMPORTANT: when modified also if only a parameter of the configuration (and HARDWARE SET UP NO
therefore also for EPROM substitution) it is necessary to empty also the RAM Please Wait…
(screen 72b)
memory by cutting off the power to the control for a few seconds.

AL. PAGE CLEAR-UP. La historical alarms cleaning permits to cancel the last 30
alarm event saved in the memory.

HARDWARE SET-UP. Possibility to carry out an automatic identification of the

devices connected to the control. This operation is useful in case of need to add
an option to the board, substitute a sensor or when the display shows "NC" as the
reading of the temperature sensor.

To carry out default factory settings and other memory data (with the exception of "Hardware Configuration"
P
parameters) press both the and buttons at the same time for at least 5 seconds.
A brief signal sounding will confirm that the operation has been carried out correctly.

EPROM SUBTITUTION.
In the event of EPROM substitution control automatically performs all the
operations listed above: memory clear-up, re-setting of the factory defaults,
cleaning of the historical alarms, re-reading of the devices:
- proceed to the configuration and setting of parameters different to that of the
default.;
- cut off power to the control for a few seconds;
- restore power to the control;.
In the event of problems, carry out manually the command program set-up and
repeat the sequence of operations.

mP20 - Rev. 1.0 - Date: 16-02-2001 EN 21 (44)

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PROGRAM FOR AIR CONDITIONING

DELAY SETTINGS

ACCESS TO ACCESS TO
CONFIGURATION MENU CONFIGURATION MENU
P I/O
ENTER PASSWORD …… ENTER PASSWORD
+
_00000 _* * * * *
(screen 220) (screen 220)

* * * * *: Insert the key word "SERVICE" ("CONFIGURATION PASSWORD") that youm find in the envelope attached to this
manual.

_Hardware Config. Hardware Config.

Delay Settings _Delay Settings
Manual Control Manual Control ……

screen 50 Screen 50

Screen 80 manages the behaviour in the initial transitori and the possibilty to set:
• units re-start delay after power loss (‘POWER ON DELAY’); serve to prevent
simultaneous starting in multiple installations;
In the units in LAN there is the automatic progressive re-start sequence (unit 1, Power On Delay s 000
unit 2, …) with intervals of 5 seconds between one unit and the next. LP-Stat Delay s 180
Start Trans. s 60
• (only DX, TC, ES units) the initial period – from the start of the compressor - T+H Al. Delay min 15
during which there is no reading of the low pressure pressostat (‘LP-STAT (screens 80)
DELAY’); permits the start up of the compressor also at tough temperatures
• The period of time that between the start up of the unit and the start of regulation /
(‘START TRANS.’); is the starting period deemed necessary to obtain control Anti-Hunting Time
system stability. Constant of Room
In this period also the reading of the air fluxostat FS is ignored; this permits – Temp. Control min 01
mostly in units with a motorised damper – start-up of the unit without an alarm (screens 81)
signal "Loss of air flow".
• The signal of ambient alarms delay since the unit first starting (‘T+H AL.
DELAY’).

In the next screen 81 there is the setting of the ‘ANTI HUNTING CONSTAT OF
ROOM TEMP. CONTROL’ to avoid excessive thermal excursion. The value has to
be as high as bigger is the thermal inertia in the conditioned room.

22 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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MANUAL CONTROL
During normal operation all unit components are controlled automatically, however the simplify maintenance and
regulation operations or in emergency conditions it is possible to force manually– and independent to the
reguklation process the start up of each component.
• Unit fans (Unit start-Up);
• Compressor 1/2;
• (CW units) analogue output 0/1 (Y0/Y1Ramp %);
• Dehumidification;
• Reheating 1 ;
• Reheating 2;
• Forces the analogic output 0/1 in DX, TC, ES units(Y0/Y1Ramp);
The security devices are active also during manual functioning.

To modify the parameter values it is necessary to access to the subroutine "MANUAL CONTROL" from the
"HARDWARE" menu until reaching screen 220 where the password is requested password.

ACCESS TO ACCESS TO
CONFIGURATION MENU CONFIGURATION MENU
P I/O
ENTER PASSWORD …… ENTER PASSWORD
+
_00000 _* * * * *
(screen 220) (screen 220)

* * * * *: Introduce the password "SERVICE" ("CONFIGURATION PASSWORD") found in the envelope attached to this maunual.

_Hardware Config. Hardware Config.

Delay Settings Delay Settings
Manual Control _Manual Control ……

screen 50 screen 50

AUTOMATIC/MANUAL FUNCTIONING MODES (SCREENS 90-93)

MANUAL OVERRIDE
To vary the functioning mode of a component it is sufficient to move the cursor in UNIT START-UP NO
COMPRESSOR 1 NO
COMPRESSOR 2 NO
corresponding line, press the or button to change from automatic ("No")
(screen 90) DX, TC, ES

to manual ("Yes") or vice versa and confirm by pressing the button.

/
In screen 93 it is also possible to set in % the opening grade of the devices MANUAL OVERRIDE
UNIT START-UP NO
connected to the analogic output Y0 o Y1. Y0 RAMP % 000
Y1 RAMP % 000
By forcing in operation one or more components, in D field of the STATUS screen (screen 91) CW
appears “MAN”.
/
MANUAL OVERRIDE
DEHUMIDIFICATION NO
REHEATING 1 NO
REHEATING 2 NO
(screen 92)

/
MANUAL OVERRIDE
Y0 RAMP % 000
Y1 RAMP % 000

(screen 93) DX, TC, ES

mP20 - Rev. 1.0 - Date: 16-02-2001 EN 23 (44)

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P +

REMOTE CONTROL OF THE UNIT

The start up and the stop of the unit can be carried out alternatively through:
1. a remote contact (or "remote control");
2. a "supervision system" connected to the microprocessor with serial cable.
The control of the unit devices is made in any case by the microprocessor.

ON/OFF FROM REMOTE: unit start up is managed by the closure of a remote contact N.O. without tension
connected to the board (see electrical diagram). For units with standard regulation program the digital input is: ID1.

SUPERVISION SYSTEM
A supervision system exchanges data via a serial cable with the board of the unit that is commanded and controlled
from remote: for this purpose an optional Serial card is available which permits the interface to a net RS422/RS485
for the transmission of data (see Supervision System manual).

ACCESS TO
CONFIGURATION MENU
P ENTER PASSWORD
+
_00000
(screen 210)

Screens 130a/130b determine if the unit is managed by remote by tele control and
you can set:
• remote start-up/shut down from free contact (‘I/O via Contact’);
• remote start-up/shut down by a supervision system – via serial RS422 or RS485 I/O via Contact N
- (‘I/O via Serial’); if "I/O via Serial YES" is set the possibility to select "I/O via I/O via Serial N
Id# 001 Speed 1200
Contact" is excluded automatically;
• the serial address of the unit connected to the supervision serial network (must (screen 130a)
be the same as the serial address set in the supervision program); the speed of
data transmission (‘Speed.’): 1200, 2400, 4800 for RS422 or 1200, 2400, 4800, I/O via Contact N
I/O via Serial N
9600 and 19200 for RS485. Id# 001 Speed 1200
LAN: UNIT NUMBER 00
(screen 130b)

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TWO UNITS MANAGEMENT

The microprocessor automatically control of two units, of which one is functioning (base) and one is in reserve (in
stand-by).
This is possible without the need to create a local network (LAN): it is sufficient to connect the digital output DO10 of
the 2° livel alarms of the base board (addressable alarm) of the first unit to the remote control terminals of the
other and vice-versa.

By selecting 'AUTOM.SWITCH-OVER OF STD-BY UNIT: Yes' in screen 131b it is possible to verify the following
functioning modes:
• one functioning unit; second unit in stand-by;
• Start-up of the reserve unit in the event of the break down of the first unit; the alarm states that activate this
ND
function are those defined in the paragraph "ADDRESSING OF 2 LEVEL ALARM", including the loss of tension in
the working unit
If in screen 131b "1 UNIT ON LIMIT: No' is set, following an alarm situation on the functioning unit the reserve

unit is started and both unit continue to work until the operator intervenes. Only by pressing the button for 5
seconds the alarm is reset and the unit is disactivated.
• Rotation on a temporary basis between the two units; this operation allows the division of the work load onto
two units at intervals of time which are pre-set (see screen 131b "CYCLE TIME");
• It is possible to start-up the stand-by unit as a substitute of the already working unit or in addition. The additional
unit may be useful, for example, in the event of an alarm caused by a high room temperature due to thermal
overloading, however if the available electrical power is sufficient for only one unit it is possible limit the operation
to just one unit.

SCREEN 131b
It does not appear in units not suitable for the LAN connection.
Provides the possibility to control two units of which one is functioning and one is in P +
stand-by by selecting: ……
• The possibility of this management (Yes/No);
Autom. Switch-Over
• the length of the automatic cycle between one inversion and the next (‘Cycle Base / Std-by Pair Y
Time’), within 1 and 999 hours; Cycle Time h 000
1 Unit On Limit N
• the possibility to have only one working unit ('1 Unit ON Limit'), for example with
(screen 131b)
the intention to avoid overloading on a supply line unable to support both units
(eg. UPS).

As an alternative to the control of two units as described above it is possible to manage a local network at the
condition that the board is provided with LAN card and EPROM able to manage the LAN (see next paragraph).
Management of more than two units always requires connection to a local network (see specific instruction
manual).

mP20 - Rev. 1.0 - Date: 16-02-2001 EN 25 (44)

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UNITS IN LOCAL AREA NETWORK

Units with EPROM equipped with LAN and equipped with relevant optional card, in P +
the 130b screen the number of units in the local network has to be set (‘LAN: Unit
……
Number’).
It is however possible to work one unit on a temporary basis if the board address is I/O via Contact N
equal to 1 and if the "LAN: Unit Number" is set equal to 1. I/O via Serial N
Id# 001 Speed 1200
LAN: UNIT NUMBER 00
(screen 130b)
Screen 132 regards the parameters for automatic rotation between working
units and the stand-by unit and provides the possibility to set: /
• the presence of this feature (Yes/No); when automatic rotation is set, on a unit Autom. Switch-Over
ON of Std-By Unit N
Cycle Time h 000
with an address lower then the network it is necessary to press the button.
OFF
N° Stand-by units 0
• The length of the automatic cycle between one inversion and the next (‘CYCLE (screen 132) LAN
TIME’);
• The number of units in stand-by (‘N. STAND-BY UNITS'). /
Automatic rotation occurs with the same modes described in the previous Usage of T+H values
paragraph: on a temporary basis or following a second level alarm; in the Mode: Local / Mean
second hypothesis start up of the stand-by unit causes the shut down of the first unit. Aut.Changeover
Mean/Loc.Diff.°C 2.0
(screen 133)

Screen 133, displayed only if the local network is is set, gives the possibility to
control unit operation with a mean temperature measured in the room or with the
"local" value measured the sensor inside the unit:

- Mode: Local Unit control is made by the temperature and humidity values read
by the sensors in the unit.

- Mode: Mean Unit control is affidato to the mean temperature and humidity
values read by the sensors in the active connected units in the local network.
Whatever the difference between the mean value and the sensor reading exceeds
the value "MEAN/LOC.DIFF." (default equal to 2°C), the control automatically
exchanges from the "MEAN" mode to the "LOCAL" mode.

26 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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P +

TEMPERATURE AND HUMIDITY SET POINT

All variables are pre-set in the factory so that the control functions correctly, maintaining standard conditions in the
room.

The set points and other set parameters can be read by pressing the button (it is not possible however to vary
the parameters).
To modify the values it is necessary to access the programming mode and insert the password "SETTINGS"
(screen 210).

ACCESSO TO
SETTINGS
P + ENTER PASSWORD
_00000
(screen 210)

By using screens 110 to 119 it is possible to set the regulation parameters.

COOLING SET POINT (SCREEN 110)

• COOL. SET P.: cooling set point;
• SENSITIVITY.: cooling proportional band;
Cool. Set P. °C 23.0
• TIME CONSTANT integration time of P+I (s), only for close control mode; Sensitivity °C 1.5
• DEL. TEMP. LIMIT: minimum air delivery temperature (°C), appears only if there Time Constant s 0600
Del. Temp. Limit °C 14
is the optional temperature sensor. (screen 110)
Warning: to lower the cooling set point it may be necessary to lower the heating
set point to avoid the superimposition/overlapping of the heating proportional band
with that of the heating proportional band. /
Cool. Set P. °C 23.0
Heat. Set P. °C 23.0
HEATING SET POINT (SCREEN 111) Sensitivity °C 1.5

• COOL. SET P.: cooling set point (reference only); (screen 111)
• HEAT. SET P. (°C): heating set point;
• SENSITIVITY (°C): heating proportional band. /
Cool. Set P. °C 23.0
Room High T. °C 30
TEMPERATURE ALARMS (SCREEN 112) Heat. Set P. °C 23.0
Setting of the minimum and maximum room temperatures, when reached a Room Low T. °C 10
(screen 112)
specific alarm signal is switched on (from an internal sensor).
• COOL. SET P. (°C): cooling set point (reference only);
• ROOM HIGH T. (°C): threshold of high room temperature limit alarm;
• HEAT. SET P. (°C): heating set point (reference only);
• ROOM LOW T. (°C): threshold of low room temperature limit alarm.
N.B. the last two lines only appear if the unit is provided with at least one
dedicated heating device.

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 27 (44)

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DEHUMIDIFICATION CONTROL (SCREEN 113a-113b)

• DEHUMID. CONTROL: enables/disables the dehumidification function; /
• DEHUM. SET P. (rH%): dehumidification set point; _Relative Humidity
• DEH. PROP. BAND. (rH%): de-humidification hysteresis effect Dehumid. Control: Y
Dehum. Set P. rH% 55
Deh. Prop. Band. rH% 05
(screen 113b)
HUMIDIFIER SET POINT (SCREEN 114)
• HUMID. SET P. (rH%).: humidification set point;
/
• HUM. PROP. BAND. (rH%): humidification proportional band.
_Humidification
Humid. Set P. rH% 45
Hum. Prop. Band. rH% 05
HUMIDIFIER SETTING (SCREEN 115)
(screen 114)
Regards the setting of the steam production capacity from the integrated
humidifier.
• MAXIMUM STEAM PRODUCTION: maximum steam production in kg/h. /
N.B. By reducing the steam production capacity as closest as possible to the room Humidifier Setting
Maximum Steam
necessities, it is possible to optimise the humidifier function and to prolong the life Production kg/h 00.0
of the steam cylinder. (30-100 % Nom. Cap.)
(screen 115)

HUMIDITY ALARMS (SCREEN 116) /

Setting of the minimum and maximum relative humidity limits, when reached, a Dehum. Set P. rh% 55
specific alarm signal is switched on (from an internal sensor). High Rel. Hum. rh% 80
Hum. Set Point rh% 45
• DEHUM. SET P. (rH%): dehumidification set point (reference only); Low Rel. Hum. rh% 30
• HIGH REL. HUM. (rH%): threshold alarm due to high relative humidity.; (screen 116)
• HUM. SET POINT (rH%): humidification set point (reference only);
• LOW REL. HUM. (rH%): threshold alarm due to low relative humidity.

N.B. the options shown relate to the units available resources.

28 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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P +

SET BACK FUNCTION

The set back function, which can be either activated or de-activated by using the control panel, consists of an
automatic start-up of the stand-by unit – yet powered – to exceed the following programmable limits for at least 30
seconds:
• Minimum temperature;
• Maximum temperature;
• Minimum relative humidity (only with optional humidity sensor and humidifier);
• Maximum relative humidity (only with optional humidity sensor);
Intervention of the set back function, must control the room conditions – although with larger tolerances – even if
the whole system is in stand-by; it’s intervention therefore is independent and not conditioned by signals from
remote systems.
It is possible to program that during the set back function the fan runs in cycles to allow that the
temperature sensor is blown by the air within the room.
Intervention of the set back function is not considered as an alarm situation.

VARIOUS CONTROL PARAMETERS (SCREENS 117a-117b-118-119) P +

• SETBACK MODE: enables/disables the 'set back function';
if the function is selected, the message "WARNING: UNIT IN SETBACK MODE" ……
appears in the STATUS screen;
Setback Mode Y
• MIN. TEMP.: minimum temperature threshold for the intervention of the set back Min. Temp. °C 15
mode (heating set during the set back mode); Max. Temp. °C 29
• MAX. TEMP.: maximum temperature threshold for the intervention of the set (screen 117b)
back mode (cooling set during the set back mode);
• MIN. REL. HUM. (rH%): set point for starting of the humidifier during the set
/
back mode;
Setback Mode
• MAX. REL. HUM. (rH%): maximum relative humidity before intervention of the Min. Rel Hum. rH% 35
set back mode (dehumidification function); Max. Rel Hum. rH% 75
• CYCLICAL START OF FAN: defines the fan operation during the set back
(screen 118)
function; if "Yes" is set the fan is started in cycles to guarantee stable room
conditions.
/
When the unit is in the set back mode, "WATCH" is displayed in the STATUS Setback Mode
Cyclical Start
SCREEN. of Fan (s 60) N
Normal operation conditions are re-stared automatically when the temperature Interval min. 00
returns within the set values [MIN. TEMP. + 2°C] and [MAX. TEMP. - 2°C]. (screen 119)
There is however a minimum time period of 15 minutes before which the unit does
not exit from the set back mode; this means that conditions may be stabilised.

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 29 (44)

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P +

CLOCK - CALENDAR – TIME BANDS (only with optional clock circuit)

If the microprocessor is fitted with the optional clock circuit the date, time and weekday is shown in the STATUS
screen. It is possible the time with:
• start up and shut down of the unit according to timed program;
• memorisation of the alarm events.
Setting of the time and date and the programming of the time bands is possible by using the following screens:

ACCESS TO _ CLOCK - CALENDAR UNIT ON-OFF CYCLE

SETTINGS 12:24 (MAX 3 ON-OFF DAILY
P ENTER PASSWORD 14/02/01 CYCLES) ……
+
_00000 WED ENABLE: NO
(screen 210) (screen 100) (screen 101)

SETTING OF THE CLOCK - CALENDAR

In screen 100, it is possible to set:
• time of day (hours, minutes);
• date (day, month, year);
• weekday classification.

SETTING OF THE TIME BANDS (SCREENS 101-106) ……

Using this device it is possible to set the automatic start up and shut down of the /
unit on a temporary basis (time bands) to obtain: Unit On-Off Cycle
• up to 3 on-off daily cycles, each with start-up and stop time; (Max 3 on-off Daily
Cycles)
• a weekly cycle distinguishing the daily cycles divided into regular days N (default Enable: Y
is from Monday to Friday), pre-holiday P (default is on Saturday), holidays F (screen 101)
(default is on Sunday).
/
By setting "YES" in screen 101 the time bands device is activated; in field D of the
REGULAR DAY
STATUS screen “TIMED” appears. ON 08:15 OFF 12:30
Screens 104, 105, 106 it is possible to program the time cycles - characterised by ON 13:15 OFF 18:20
a start time (ON) and a stop time (OFF) – of the regular days (N) , pre-holidays ON 20:00 OFF 22:30
(screen 104)
(P), holidays (F).
A stopped unit, “PROGRAMMED STOP - RE-START. AT ...” appears in the
display with the time and weekday that is programmed for the next start-up. /
By setting 00:00 in the ON or OFF the cycle is ignored. SATURDAY / PRE-HOLIDAY
ON 08:30 OFF 14:00
ON 00:00 OFF 00:00
ON 00:00 OFF 00:00
(screen 105)
CLASSIFICATION OF THE WEEKDAYS (SCREEN 102)
This is automatic, however it can be modified using screen 102; the screen /
appears when the time bands device is activated (screen 101 - "ENABLE:" YES).
SUNDAY AND HOLIDAY
The present day is shown – at the end of the programming of the time bands: ON 00:00 OFF 00:00
- N: regular day or holiday; ON 00:00 OFF 00:00
ON 00:00 OFF 00:00
- P: pre-holiday;
(screen 106)
- F: holiday.
……
Whenever it is necessary to change the classifications, press the button to Programmed Cycle:

To change
move to screen 103, otherwise press the button. Press Key "ENTER"
(screen 102)

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WEEKLY PROGRAM (SCREEN 103)

Unless it is different set, in the microprocessor memory are classified: Programmed Cycle:
• regular days (N) all week days from Monday to Friday;
To change
• pre-holidays (P) Saturday; Press Key "ENTER"
• holiday (F) Sunday. (screen 102)

By using screen 103 (moving from screen 102 by pressing the button) it is
possible to change the classification of the seven days to come, including the PROGRAM. LU 13/10/97
actual day that is shown on the first line of the screen. MO TU WE TH FR SA SU
N N >F N >P >F F
Under each day there is a memorised classification (N or P or F) that can be (screen 103)

modified by pressing the or button until finding the wanted classification;

by pressing the button the set classification is confirmed and the next day is
selected. If the classification differs from the standard the symbol > appears
automatically before the classification.
The selected time bands will be the same as days of same classification.

The selection of the time bands is cancelled automatically once the day for which it was activated has passed.

To exit from the time-calendar and time bands screens press the button.

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 31 (44)

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PROGRAM FOR AIR CONDITIONING

P +

ADDRESSING OF 2nd LEVEL ALARMS

This paragraph ("ALARM READINGS ") explains
the possible alarm events that can be detected P + /
by the control, specifying each action carried out ACCESS TO 2nd Level Alarms
by the control. SETTINGS Flooding N
In the worst cases (for example when the alarm ENTER PASSORD Smoke/Fire N
_00000 Ext.Room Sensor N
originates from a security device) the control (screen 210) (screen 34)
commands the shut down of a few unit ……
components; in other cases, following an alarm,
/
only a signal is shown on the display terminal.
2nd Level Alarms 2nd Level Alarms
Air Flow/Fans Y Main Sensors Y
Screens 31…. 37 give the possibility to select Compressors Y Auxil. Sensors N
nd El. Heaters Y
between a list of 2 level alarms. Local Network N
(screen 31) (screen 35)
In the event of an alarm addressable alarm relay
nd
is powered (or 2 level alarms):
/ /
- with two or more connected units with one in 2nd Level Alarms 2nd Level Alarms
nd Air Filters N
stand-by, the 2 level alarms activate the Humidifier Y
Wrong Password N
Unit Run Hours N
exchange between the operating unit and the Low Room R.Hum. Y Filter Run Hours N
stand-by unit; (screen 32) (screen 36)

- in the event of remoting the selected alarms / /

cause a generic signal of alarm units (digital 2nd Level Alarms 2nd Level Alarms
output board: DO10). High Room Temp. Y Compr. Run Hours N
Low Room Temp. Y Reheat. Run Hours N
nd High Room R.Hum. Y Humidifier Run H N
If selected as 2 level alarms, the 'SMOKE/FIRE' (screen 33) (screen 37)
and 'FLOODING' alarms cause the unit to shut
down.

32 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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PROGRAM FOR AIR CONDITIONING

ALARM READINGS

ACTIVE ALARMS

By pressing the button the alarm buzzer is silenced and a description of the alarm is shown in the display.

If the cause of the alarm has been eliminated, the last alarm message can be reset by holding the button
down for a few seconds; by doing this the red light on the button switches off immediately.
If the cause of the alarm has not been eliminated, the buzzer is activated again.

HISTORICAL ALLARM SEQUENCE

To reconstruct the historical alarm sequence, the microprocessor maintains the last 25 events in the memory.

All the memorised alarms can be read in order by pressing the button starting from the STATUS MEMORY.

12:30 31/05/00 AL01

CLOGGED FILTERS

Service time limits overcoming are not memorised and therefore can not be read ("SERV.").
In the sequence the first event shown corresponds to the last alarm.

In microprocessor fitted with clock circuits (optional) during each alarm event the date and ime is shown.

DESCRIPTION OF ALARM EVENTS

All the possible alarm messages that can be shown on the user terminal display are recalled.
For those alarms that are still active (and therefore which are not memorised in the historic sequence) indications to
resolve the problem are found on the last two lines of the display.
nd nd
Alarms selected from the 2 level alarms can cause the unit to shut down (see paragraph "ADDRESSING 2
LEVEL ALARMS").

WRONG PHASE SEQUENCE ALARM

The SCROLL compressor must turn in a specific direction of rotation unless
efficiency loss. WARNING!
Only in units with a three phase power supply it is possible that the phase Wrong Power Phases
sequence of the power supply causes a rotation to the direction opposite of what Sequence: Please
Change-Over 2 Phases
has been set. In this such event, as soon as the unit is powered the
microprocessor immediately enters into an alarm state to prevents any other
manoeuvres.
In these circumstances cut off the unit power supply and reverse two of the power
phases.

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 33 (44)

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PROGRAM FOR AIR CONDITIONING

HIGH TEMPERATURE OR HUMIDITY VALUES.

These are alarms connected with the high thermo-hygrometric limits (see paragraph "TEMPERATURE AND
HUMIDITY SET POINT ": screens 112 and 116).

ALARM Signal only. Can be delayed during the unit start-up phase (15 minute default delay).
ROOM TEMPERATURE
ABOVE MAX. LIMIT

ALARM Signal only. Can be delayed during unit start-up phase (15 minutes default delay).
ROOM TEMPERATURE
BELOW MIN. LIMIT

ALARM Signal only. Can be delayed during unit start-up phase (15 minutes default delay).
ROOM REL. HUMIDITY
ABOVE MAX. LIMIT

ALARM Signal only. Can be delayed during unit start-up phase (15 minutes default delay).
ROOM REL. HUMIDITY
BELOW MIN. LIMIT

OPTIONAL SENSOR ALARMS

ALARM Detected by the flood control module, causes the unit to shut down only if selected from
FLOOD ALARM
CHECK WATER the second level alarms..
CONNECTIONS

ALARM Detected by the fire/smoke sensors, causes the unit to shut down only if selected from
PRESENCE OF
SMOKE/FIRE the second level alarms.

ALARM Signal only.

ROOM LIMIT EXCEEDED
(BY EXT. SENSORS)

UNIT FUNCTIONING ALARMS

Alarms relative to the air conditioning unit components and that are caused by the intervention of a protection
device.

ALARM Only TC units: causes the switching from chilled water (CW) functioning to direct
CW VALVE FAILURE OR
WATER FLOW TOO LOW expansion (DX) stage. Shown also when room temperature sensor detects exceeds for
the first time the set limits.

ALARM Only CW units. When the water flow gauge signals a flow loss in the chilled water circuit.
FLOOD ALARM
CHECK WATER
CONNECTIONS

ALARM CW units (Signal only). Detected by the chilled water temperature sensor when the "Set
WATER TOO WARM TO
GET DEHUMIDIFICATION Point" value set in screen 63 is not reached within 15 minutes after the dehumidification
CHECK CHILLER GROUP call.

ALARM Only CW units. Detected by the chilled water temperature sensors when it exceeds the
HIGH CHILLED WATER
TEMPERATURE: limit "High Temp." set in screen 63.
CHECK CHILLER GROUP

ALARM Fan alarms: Detected by the air flow differential pressostat. Causes the shut down of all
LOSS OF AIR FLOW
CHECK FAN/SWITCH devices (compressors, electric heaters, humidifier, fans).

34 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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PROGRAM FOR AIR CONDITIONING

ALARM Detected by the dirty filter differential pressostat (PFS), causes a single alarm signal,
CLOGGED FILTERS
CLEAN OR REPLACE without affecting the unit functioning. Indicates that the air filter must be cleaned or
FILTER ELEMENT replaced.

ALARM Only DX, ES, TC units. Causes the displayed circuit compressors (1 or 2) to shut down.
COMPR.1 HIGH PRESS.
CHECK REFRIG. CIRCUIT
AND/OR CONDENSER

ALARM Only DX, ES, TC units. Causes the shut down of the displayed circuit compressors (1 o
COMPR.1 LOW PRESSURE
CHECK REFRIG. CIRCUIT 2).
/REFRIGERANT CHARGE

ALARM Alarm detected by the safety thermostat, causes the electric heaters to shut down.
HEATERS OVERHEATING
CHECK AIR FLOW
AND/OR SAFETY SWITCH

HUMIDIFIER ALARMS

ALARM LAN 1 Humidifier alarm. Disables the humidification function.

HUMIDIFIER: HIGH
CURRENT: CHECK
CYLINDER / DRAINING

ALARM LAN 1 Humidifier alarm. Disables the humidification function.

HUMIDIFIER: LOSS OF
WATER: CHECK
WATER SUPPLY

ALARM LAN 1 Humidifier alarm. Disables the humidification function.

HUMIDIFIER: LOSS OF
POWER: CHECK
ELECTRICAL CIRCUIT

SENSOR ALARMS
Relative to the malfunction or the incorrect connection of the sensors to the basic board.
Whenever one of these alarms is activated, verify the accuracy of the set configuration, the presence of the sensor,
the exact connection of the sensor, the functional characteristics of the sensor.
ALARM Disable a unit function according to the sensor signalling
(*****)
SENSOR
FAILED/DISCONNECTED

(*****)

Causes the shut down of the compressors and the electric heaters keeping only the fans
ROOM TEMP.
running.

Disables the free-cooling function control (only ES units).

OUTDOOR TEMP.

Disables the electrical heaters

DELIVERY TEMP.

Disables the humidification and dehumidification functions.

ROOM REL. HUM.

Disables the free-cooling function control (only ES units) and forces the RAD COOLER
WATER IN T.SENSOR
to work at 100%.

Disables the hot water re-heat process (optional).

HOT WATER TEMP.

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 35 (44)

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PROGRAM FOR AIR CONDITIONING

SERVICE NOTES
These report the set service time limits overcoming of the described component refer to signal (cfr. HOURMETER
OPERATION).
As already mentionned, this type of alarms continues until the hourmeter is reset, however it is not memorised in
the historical series of alarms.

SERVICE ALARM Signal only. Can refer to: "UNIT", "Air FILTER", "COMPRESSOR 1", "COMPRESSOR 2",
(* * * * *)
EXCEEDED XXXXX RUN "COMPRESSOR 3", "COMPRESSOR 4", "EL. HEATER 1", "EL. HEATER 2", "HUMIDIFIER".
HOURS
To reset the alarm it is necessary to reset the hourmeter (see paragraph "HOURMETER
READING AND PROGRAMMING").

DISCONNECTED 'LAN' ALARM

ALARM Indicates communication problems between the LAN unit and specifies which units are
LAN INTERRUPTED,
DISCONNECTED UNITS not connected. Can be due to a power loss, a malfunction of the serial circuits or an
………………………. interruption in the electrical connections.
The alarm appears on the units which bear the lowest LAN address both just before and
after the disconnection.

SYSTEM ALARMS

ALARM Indicates errors in the EEPROM memory, probably due to the exceeding erasing /
EEPROM FAILURE:
REPLACE CONTROL writing cycles. It is necessary to replace the control board.
BOARD

ACCESS ALARMS

ALARM Refers to an attempt to access the setting screen or configuration with the wrong
ATTEMPT TO ACCESS
WITH WRONG (MIN. 3 OC- password three times in a row.
CURRENCES) PASSWORD
To reset the alarm proceed as follows:
- Enter into the "Hardware Config." Menu and insert the correct password;
- Use the "AL. PAGE CLEAR-UP" command (screen 72a) to cancel the alarms in the
memory;

- Exit from the subroutine using the button;

- Keep the button pressed for 5 seconds until the red light switches off.

REMOTE ALARM SIGNALLING

Remote signalling of the alarm states the following are available in the microprocessor control board potential free
contacts (see electrical diagrams):
DO10. Addressable second level alarm;
DO11. generic alarm;
In the event that there are more than one air conditioning units, the cabling of the clean contacts must be provided
for each unit independently.

36 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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PROGRAM FOR AIR CONDITIONING

DEFAULT VALUES

CONFIGURATION NUMERICAL PARAMETRES

Screen PARAMETERS DEFAULT Screen SET VALUES PRE-SET MIN MAX.

Humidity Control 110 Cooling set point °C 23,0 18,0 32,0

113a-113b Dehumidification NO 110 Cooling sensitivity °C 1,5 0,5 9,9
65 Humidification NO 110 Time constant sec 0600
117 Setback mode NO 110 Delivery Temp. limit °C 14 10 25
112 High room temp. alarm threshold °C 30 20 45
Addressing for 2° level alarm: 111 Heating set point °C 23,0 5,0 25,0
31 Airflow / fan YES 111 Heating sensitivity °C 1,5 0,5 9,0
31 Compressors YES 112 Low room temp. alarm threshold. °C 10 25 25
31 Electrical Heaters YES
32 Air filter NO 113b Dehum. set point RH% 55 40 90
32 Humidifier YES 113b Dehum. prop. band. RH% 05 03 15
32 Low Room R.Hum. YES 116 High room rH alarm threshold RH% 80 40 99
33 High Room Temp. YES 114 Hum. set point RH% 45 20 80
33 Low Room Temp. YES 114 Hum. prop. band. RH% 05 03 20
33 High Room R.Hum. YES 116 Low room rH alarm threshold RH% 30 05 65
34 Flooding NO
34 Smoke/fire NO Setback mode control
34 External Room sensor NO 117 Min. Temp. °C 16,0 5,0 24
35 Main sensor YES 117 Max. Temp. °C 28,0 20,0 35,0
35 Auxiliary Sensor NO 118 Min. Rel. Hum. RH% 35 20 60
35 Local Network NO 118 Max. Rel. Hum. RH% 75 50 90
36 Wrong password NO
36 Unit Run Hours NO 131b-132 Cycle Time h 168 1 999
36 Filter Run Hours NO 130b No. of Unit
37 Compr.Run Hours NO Changing the password
37 Reheat.Run Hours NO 71 Password for settings 00000 00000 32000
37 Humidifier Run Hours NO 71 Password for service * 00000 32000
∗ Passwords contained in sealed envelope attached to this manual
Remote Control, superv. system, autom. switch-over 60a Compressor Number 1 1 4
130a-130b I/O via Contact NO 60a Circuit Number 1 2
130a-130b I/O via Serial NO 60a-60b Electrical Heaters 3 0 3
130a-130b Speed (1200÷19600) 1200
131a-132 Units Switch-Over NO Counter threshold
131b 1 Unit On Limit NO 10 Filter counter threshold h 1000 0 32000
64a Hot gas coil NO 11 Humidifier h 500 0 32000
64a-64b External Dehumidifier NO 12-18 All other devices h 0 0 32000
64a-64b External Humidifier NO
Manual override - DX Rad Cooler settings
90 Unit start-up NO 61b Temp. E.S. °C 8,0 5 24
90 Compressor n.1 NO 61b Summer Temp. °C 28,0 15 40
90 Compressor n.2 NO Twin-cool circuit settings
Manual override - CW 62 Chilled Water Activ. - set point °C 7,0 7 25
91 Unit start-up NO Dehumidif. and alarm settings
91 Y0 Ramp % NO 63 Chill. water set-up - Dehum. cycle start °C 7,0 5 20
91 Y1 Ramp % NO 63 Chilled Water set-up - High Temp. °C 15,0 5 20
92 Dehumidification NO
92 Reheating n.1 NO 66-69 Offset sensors - Adjustment °C 0 -9,9 +9,9
92 Reheating n.2 NO Setting delay times
19 Humidifier - drain valve NO 80 Power On Delay sec 0 0 300
93 Y0 Ramp % 000 80 Low pressure delay sec 180 0 300
93 Y1 Ramp % 000 80 Start Transitory sec 60 15 99
80 T+H Alarm Delay min 15 0 99

81 Anti-Hunting time constant of room min 1 0 30

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 37 (44)

INSTRUCTION MANUAL

PROGRAM FOR AIR CONDITIONING

APPENDX – Screens Flow Charts

38 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

 No Alarm Air Flow/Fans N/Y ID2: FS C
Compressors N/Y ID3: PFS C
(SPECIFIC RESOURCE) El. Heaters N/Y ……
Tot. Run hours 00000 20 31 40-42
Alarm Limit h. 00000
Reset -- 14:12 10/02/01 2nd Level Alarms
10 SEQUENTIAL DISPLAY OF
Loss of Air Flow Air Filters N/Y DIGITAL INPUTS
Humidifier N/Y
Low Room R.Hum. N/Y
SEQUENTIAL DISPLAY OF
RUN HOUR LIMITS OF ALL 21 32
COMPONENTS

DISPLAY OF HISTORICAL 2nd Level Alarms

11-18 B1 Room Air T. 00.0
SEQUENCE OF High Room Temp. N/Y B2 Delivery T. 00.0
MEMORISED ALARM Low Room Temp. N/Y ……
CONDITIONS High Room R.Hum. N/Y
33
43-44

2nd Level Alarms

Flooding N/Y SEQUENTIAL DISPLAY OF
Smoke/Fire N/Y ANALOGUE INPUTS
Programme
MODE Ext.Room Sensor N/Y
34

2nd Level Alarms

Main Sensors N/Y C1: CV1 (CV) OFF
Humidifier Cilinder Auxil. Sensors N/Y C2: CC1 OFF
Maintenance Local Network N/Y C3: CC2 OFF
_ --- 35 ……
45-47
19a
2nd Level Alarms
Wrong Password N/Y SEQUENTIAL DISPLAY OF
Unit Run Hours N/Y DIGITAL OUTPUT
Humidifier Cilinder Filter Run Hours N/Y
Maintenance
_ Switch off and Empty 36

2nd Level Alarms

Compr. Run Hours N/Y Y1: VAF 000
Reheat. Run Hours N/Y Y2: VAC / RAD 000
Humidifier Cilinder Humidifier Run H N/Y ……
Maintenance 37

Please wait … 48

19b
…… SEQUENTIAL DISPLAY OF
ANALOGUE OUTPUT
Humidifier Cilinder
Maintenance
Press Enter to ESC
EMPTY CILINDER
19c
 DX, DX-S TC ES CW
Anti-Hunting Time Manual Override
Closed Circuit Setup Closed Circuit Setup Chilled Water Setup Constant of Room Unit star-up
Temp. E.S. °C 08.0 Dehum. Cycle Start Temp. Control min 00 Y0 Ramp %
Set Point. °C 28.0 Summer Temp. °C 28.0 Set Point °C 07.0 Y1 Ramp %
Rad-Cooler On-Off / Modul. Rad-Cooler On-Off / Modul. High Temp. °C 15.0
81 91
61a 61b 63

Manual Override
Dehumidification
DX, DX-S TC ES CW
Reheating 1
Closed Circuit Setup Reheating 2
92
Chilled Water Activ.
Set Point °C 07.0
62 Manual Override
Y0 Ramp %
Y1 Ramp %

93
Hot Water Reheat Si Hot Water Reheat Si
Hot Gas Coil No
"PASSWORD External Dehumid. No External Dehumid. No
External Humidif. No External Humidif. No
64a 64b

Hot Water Coil

Activation Set
Water Temp. °C 40

64c

Humidifier Mod.: ---

V: --- Ph. - TAM: ---
Steam Cap. kg/h: 00
Nom. Curr. A: 00.00
65

Offset Adj.
SENSORE
Read value °C 00.0
Adjustment °C 0.0
66-69

Cl. Filter P-Stat Si

Flood. detector No
Smoke/Fire-Stat No
T+H Instruments No
70

Set-up Of Passwords
For Accessing To:
Settings 00000
Service *****
 Heat. Set P. °C 00.0
s 00:00 Programm Versi
Sensitivity °C 0.0
00/00/00
00 mP20
111
120
Cool.. Set P. °C 00.0
Cycle
Room High T. °C 00
on-off Daily
Heat. Set P. °C 00.0
ycles)
Room Low T. °C 00
N/Y
112

SI
Relative Humidity Relative Humidity
Programmed Cycle:
Dehumid. Control: N Dehumid. Control: Y
Dehum. Set P. rH% 00
To change
Deh. Prop. Band. rH% 00
Press Key "ENTER"
113a 113b
102

PROGRAM. 00/00/00
MO TU WE TH FR SA SU
Humidification
N N N N N P F
Humid. Set P. rH% 00
Hum. Prop. Band. rH% 00
103 Programme
MODE
114

Humidifier Setting
Maximum Steam
Production kg/h 00.0
(30-100 % Nom. Cap.) P
115
"SETTINGS" P
Dehum. Set P. rh% 00
High Rel. Hum. rh% 00
Hum. Set Point rh% 00
Low Rel. Hum. rh% 00 I/O via Contact N I/O
116 I/O via Serial N I/O
Id# 001 Speed 1200 Id#
LA
130a 130
Setback Mode N/Y Setback Mode Y
Min. Temp. °C 00.0 Min. Temp °C 00.0
Max. Temp. °C 00.0 Max. Temp °C 00.0
Autom. Switch-Over Au
Base / Std-by Pair N of
117a 117b Cy
N°
131a 13
Setback Mode
Min. Rel Hum. rH% 00
Max. Rel Hum. rH% 00
Autom. Switch-Over
118 Base / Std-by Pair Y M
Cycle Time h 000
1 Unit On Limit N Me
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PROGRAM FOR AIR CONDITIONING

42 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN

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PROGRAM FOR AIR CONDITIONING

mP20 - Rev. 1.0. - Date: 16-02-2001 EN 43 (44)

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PROGRAM FOR AIR CONDITIONING

Manual code @ digit: 06MC026 @ 00B0100

UNIFLAIR ITALIA S.r.l.

Via dell’industria, 10
35020 BRUGINE (Padova) - Italy
Tel. +39 (0)49 9713211 Internet: www.UNIFLAIR.com
Fax +39 (0)49 5806906 E-mail: INFO@UNIFLAIR.com

44 (44) mP20 - Rev. 1.0 - Date: 16-02-2001 EN