Mitsubishi Electric s-MEXT-G00 006 User manual

For ME28-relC software versions
The information in this document may be modified without prior notice.
The reproduction and/or dissemination of this document, even in part, is prohibited without the written
consent of MEHITS S.p.A.
EN
COMPUTER ROOM AIR CONDITIONER
MODEL
s-MEXT-G00 006-044
TECHNICAL MANUAL
TRANSLATION OF THE ORIGINAL INSTRUCTIONS

TM_s-MEXT_ME28relC_00_12_19_EN
Technical manual
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
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PAGE LEFT INTENTIONALLY BLANK

TM_s-MEXT_ME28relC_00_12_19_EN
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Before carrying out any operation on the machine,
you must carefully read this manual
and make sure you understand
all the instructions and information given
Keep this manual in a known and easily accessible place to
refer to as necessary during the entire life-span of the unit.

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CONTENTS
1INTRODUCTION ................................................................................................................................................................................................................................7
1.1 SAFETY REQUIREMENTS........................................................................................................................................................................................................7
1.2 GENERAL FUNCTIONS.............................................................................................................................................................................................................7
1.3 UNITS CONTROLLED................................................................................................................................................................................................................7
2USER INTERFACE ............................................................................................................................................................................................................................8
2.1 USER TERMINAL.......................................................................................................................................................................................................................8
2.1.1 Technical characteristics.....................................................................................................................................................................................................8
2.1.2 General functions of keys and LEDs ..................................................................................................................................................................................8
2.2 GENERAL CHARACTERISTICS OF THE INTERFACE............................................................................................................................................................9
2.2.1 Groups of masks and menu structure.................................................................................................................................................................................9
2.2.2 Password management ....................................................................................................................................................................................................11
2.3 MAIN MASK..............................................................................................................................................................................................................................13
2.4 MAIN LOOP MASKS ................................................................................................................................................................................................................16
2.4.1 List of the main loop masks ..............................................................................................................................................................................................16
2.4.2 Main loop mask table ........................................................................................................................................................................................................16
2.5 ACTIVE FUNCTION DISPLAY MASK......................................................................................................................................................................................21
2.6 SAFETY REDUCTION LOAD (LP) DISPLAY MASK ...............................................................................................................................................................23
2.7 CHANGING THE PARAMETERS ............................................................................................................................................................................................24
2.7.1 Access to parameter changing .........................................................................................................................................................................................24
2.7.2 Menu mask table...............................................................................................................................................................................................................24
2.7.3 Parameter Table ...............................................................................................................................................................................................................57
2.8 EVENTS MASKS......................................................................................................................................................................................................................64
2.8.1 Events table ......................................................................................................................................................................................................................64
2.8.2 Table of internal humidifier alarms with CPY control........................................................................................................................................................68
3STARTING THE UNIT......................................................................................................................................................................................................................69
3.1 SOFTWARE UPLOAD..............................................................................................................................................................................................................69
3.2 UNIT POWER SUPPLY............................................................................................................................................................................................................69
3.3 VENTILATION START-UP .......................................................................................................................................................................................................69
3.4 START OF AUTOMATIC ADJUSTMENT ................................................................................................................................................................................70
3.5 FORCED VENTILATION ACTIVATION ...................................................................................................................................................................................71
3.6 MANUAL MANAGEMENT........................................................................................................................................................................................................71
4NOTES ON TEMPERATURE ADJUSTMENT.................................................................................................................................................................................72
4.1 MANAGEMENT OF THE LIMITS OF THE COLD SETPOINT ................................................................................................................................................72
4.2 REGULATION PROBE MANAGEMENT..................................................................................................................................................................................72
4.3 RETURN SETPOINT COMPENSATION .................................................................................................................................................................................73
5COOLING .........................................................................................................................................................................................................................................74
5.1 COMMUNICATION WITH THE MR SLIM UNIT ......................................................................................................................................................................74
5.1.1 Connection to only one external Mr Slim unit...................................................................................................................................................................74
5.1.2 Connection to more than one external Mr Slim unit .........................................................................................................................................................74
5.2 COLD REQUEST GENERATION.............................................................................................................................................................................................75
5.2.1 Management of dehumidification......................................................................................................................................................................................76
5.3 MINIMUM DELIVERY TEMPERATURE LIMIT ........................................................................................................................................................................77
5.3.1 Objectives..........................................................................................................................................................................................................................77
5.3.2 Adjustment logic................................................................................................................................................................................................................77
6HEATING..........................................................................................................................................................................................................................................78
6.1 ON/OFF HEATING ELEMENT MANAGEMENT ......................................................................................................................................................................78
6.2 POST-VENTILATION FUNCTION FOR THE ELECTRIC HEATERS .....................................................................................................................................78
7DEHUMIDIFY....................................................................................................................................................................................................................................79
7.1 DEHUMIDIFICATION START-UP ............................................................................................................................................................................................79
7.2 DEHUMIDIFICATION LIMITS...................................................................................................................................................................................................79
7.2.1 General considerations.....................................................................................................................................................................................................79
7.2.2 Upper limit .........................................................................................................................................................................................................................79
7.2.3 Lower limit .........................................................................................................................................................................................................................80
7.2.4 Combination of the limits...................................................................................................................................................................................................80
7.2.5 Low dehumidification temperature limit ............................................................................................................................................................................81
7.2.6 Timed dehumidification function .......................................................................................................................................................................................81
7.2.7 Post - heating....................................................................................................................................................................................................................81
7.3 DEHUMIDIFICATION SETPOINT LIMIT..................................................................................................................................................................................82
8HUMIDIFY.........................................................................................................................................................................................................................................82
8.1 INTRODUCTION ......................................................................................................................................................................................................................82
8.2 INTEGRATED HUMIDIFIER.....................................................................................................................................................................................................82
8.2.1 Operating principle............................................................................................................................................................................................................82
8.2.2 Vapour production regulation............................................................................................................................................................................................83
8.2.3 Cylinder and line initial pre-wash......................................................................................................................................................................................83
8.2.4 Reset cylinder hour counter..............................................................................................................................................................................................83
8.2.5 Dilution drain .....................................................................................................................................................................................................................83
8.2.6 Periodic drain ....................................................................................................................................................................................................................83
8.2.7 Drain due to inactivity........................................................................................................................................................................................................83
8.2.8 Alarm management...........................................................................................................................................................................................................83
8.2.9 Maintenance of the integrated dehumidifier .....................................................................................................................................................................84
9TEMPERATURE AND HUMIDITY PROBE.....................................................................................................................................................................................84
9.1 ROOM T+H PROBE .................................................................................................................................................................................................................84
9.2 REMOTE T+H PROBE.............................................................................................................................................................................................................84

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10 INTERNAL AIR FAN MANAGEMENT.............................................................................................................................................................................................85
10.1 INTRODUCTION ......................................................................................................................................................................................................................85
10.2 STANDARD OPERATION........................................................................................................................................................................................................85
10.3 MODULATING FUNCTION ......................................................................................................................................................................................................85
10.4 ECONOMY FUNCTION............................................................................................................................................................................................................85
10.5 AUTOMATIC SPEED REGULATION FUNCTION...................................................................................................................................................................86
10.5.1 Constant flow rate regulation ............................................................................................................................................................................................86
10.5.2 Calibrating the constant flow function...............................................................................................................................................................................87
10.5.3 Constant residual ∆P regulation.......................................................................................................................................................................................87
10.5.4 Operation data display......................................................................................................................................................................................................89
11 DAMPER MANAGEMENT...............................................................................................................................................................................................................90
11.1 DELIVERY DAMPER................................................................................................................................................................................................................90
11.2 DIRECT FREE COOLING DAMPER........................................................................................................................................................................................90
11.3 TEMPERATURE ADJUSTMENT IN UNITS WITH DIRECT FREECOOLING ........................................................................................................................91
11.3.1 Adjustment of Split Type units and Direct Freecooling with damper................................................................................................................................91
11.4 ENABLING DIRECT FREE COOLING.....................................................................................................................................................................................91
11.5 MAXIMUM HUMIDITY LIMIT....................................................................................................................................................................................................92
11.6 DIRECT FREE COOLING OPERATION DURING COLD RESOURCE ALARM....................................................................................................................92
11.7 DIRECT FREE COOLING STATUS DISPLAY MASK .............................................................................................................................................................92
12 PRESSURE PROTECTION AND CONTROL FUNCTIONS ...........................................................................................................................................................93
12.1 FROST-FREE FUNCTION WITH LOW PRESSURE PROBE.................................................................................................................................................93
12.2 SAFETY REDUCTION LOAD (LP) FUNCTION.......................................................................................................................................................................94
13 NETWORK TRANSDUCER.............................................................................................................................................................................................................96
14 MANAGEMENT OF DUAL SUPPLY...............................................................................................................................................................................................96
15 ALARM AND MAINTENANCE MANAGEMENT.............................................................................................................................................................................97
15.1 ORIGIN OF ALARMS ...............................................................................................................................................................................................................97
15.2 THRESHOLD ALARMS............................................................................................................................................................................................................97
15.2.1 High and low room temperature alarm. ............................................................................................................................................................................97
15.2.2 High and low room humidity alarm ...................................................................................................................................................................................97
15.3 PAC-IF013B-E ALARMS ..........................................................................................................................................................................................................98
15.4 ALARM OR SIGNAL EVENTS .................................................................................................................................................................................................98
15.5 EVENT NOTIFICATION RELAY...............................................................................................................................................................................................99
15.6 EVENT HISTORY.....................................................................................................................................................................................................................99
15.6.1 General information...........................................................................................................................................................................................................99
15.6.2 Event log display - User Level ..........................................................................................................................................................................................99
15.6.3 Event log display - Service Level......................................................................................................................................................................................99
15.6.4 Events mask....................................................................................................................................................................................................................100
15.6.5 Deleting the events log ...................................................................................................................................................................................................100
15.7 BLACK BOX FOR PARAMETERS.........................................................................................................................................................................................100
15.8 MAINTENANCE SIGNALS .....................................................................................................................................................................................................100
16 HARDWARE...................................................................................................................................................................................................................................101
16.1 DESCRIPTION OF THE LEDS...............................................................................................................................................................................................101
17 INPUT/OUTPUT CONFIGURATION TABLE ................................................................................................................................................................................102
17.1 MAIN CONTROLLER .............................................................................................................................................................................................................102
17.2 EXPANSION NO. 1 (ADDRESS 8).........................................................................................................................................................................................103
18 HARDWARE ARCHITECTURE.....................................................................................................................................................................................................104
19 ADDRESSING THE MODBUS COMMUNICATION MODULES ..................................................................................................................................................105
19.1 FIELDBUS 1............................................................................................................................................................................................................................105
19.1.1 Configuration of T+H probe module communication......................................................................................................................................................105
19.2 FIELDBUS 2............................................................................................................................................................................................................................106
19.2.1 Master PAC-IF013BE interface card communication configuration...............................................................................................................................106
20 LOCAL LAN NETWORK MANAGEMENT....................................................................................................................................................................................107
20.1 PURPOSE OF THE LOCAL LAN NETWORK .......................................................................................................................................................................107
20.2 PRELIMINARY OPERATIONS...............................................................................................................................................................................................107
20.2.1 Introduction .....................................................................................................................................................................................................................107
20.2.2 Network cabling...............................................................................................................................................................................................................107
20.2.3 Network configuration .....................................................................................................................................................................................................108
20.2.4 Addressing the control board - From the board..............................................................................................................................................................108
20.2.5 Address setting the control board - from the user terminal ............................................................................................................................................109
20.2.6 User terminal address setting .........................................................................................................................................................................................109
20.2.7 Network status display (NetSTAT)..................................................................................................................................................................................109
20.3 SETTINGS ON THE USER TERMINAL.................................................................................................................................................................................110
20.4 BACKUP UNIT MANAGEMENT (STAND-BY).......................................................................................................................................................................110
20.4.1 Introduction .....................................................................................................................................................................................................................110
20.4.2 Rotation management.....................................................................................................................................................................................................110
20.4.3 Reserve unit activation mode..........................................................................................................................................................................................110
20.4.4 Backup activation events ................................................................................................................................................................................................111
20.4.5 Management of two backup units ...................................................................................................................................................................................112
20.4.6 Exceeding the limits ........................................................................................................................................................................................................112
20.5 ACTIVE FAN ON STAND-BY.................................................................................................................................................................................................114
20.6 TEMPERATURE AND HUMIDITY AVERAGE MANAGEMENT............................................................................................................................................115
20.6.1 Introduction .....................................................................................................................................................................................................................115
20.6.2 Average calculation.........................................................................................................................................................................................................115
20.6.3 Enabling the average for use..........................................................................................................................................................................................115
20.7 H&L LOCAL TEMPERATURE PROTECTION.......................................................................................................................................................................116
20.8 LAN ALARM MANAGEMENT.................................................................................................................................................................................................118

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20.8.1 Preliminary considerations..............................................................................................................................................................................................118
20.8.2 Management algorithm ...................................................................................................................................................................................................118
20.8.3 Examples.........................................................................................................................................................................................................................118
20.8.4 Consequences of the alarm............................................................................................................................................................................................120
20.9 REACTIONS TO ALARMS WITHIN THE LAN NETWORK ...................................................................................................................................................120
20.9.1 Missing Air Flow alarm event..........................................................................................................................................................................................120
20.9.2 Gas Leak Detected alarm event .....................................................................................................................................................................................120
20.10 SHARED USER TERMINAL...................................................................................................................................................................................................121
20.10.1 Connecting the remote keyboard....................................................................................................................................................................................121
20.10.2 “T” shunt..........................................................................................................................................................................................................................121
20.10.3 Remote keyboard up to 200 metres ...............................................................................................................................................................................122
20.10.4 Remote keyboard from 200 metres up to 500 metres....................................................................................................................................................122
20.10.5 Remote keyboard for more than one unit.......................................................................................................................................................................122
21 ANNEXES.......................................................................................................................................................................................................................................123
21.1 PID ADJUSTER CONTROL PARAMETERS .........................................................................................................................................................................123
21.1.1 Proportional Action..........................................................................................................................................................................................................123
21.1.2 Integral Action .................................................................................................................................................................................................................123
21.1.3 Derivative Action .............................................................................................................................................................................................................124
21.1.4 The combined effect of the three actions .......................................................................................................................................................................124
21.1.5 Anti-Windup control (control of integral error).................................................................................................................................................................124
21.2 DEFINITION OF THE HUMIDIFIER'S CONFIGURATION PARAMETER.............................................................................................................................125
Description of the symbols
A number of symbols are used to highlight some parts of the text that are of particular importance. These are described below.
ATTENTION
Indicates situations of grave danger which, if ignored, can seriously endanger the health and safety of people.
OBLIGATION
Indicates that it is necessary to act in an appropriate manner in order not to put at risk the health and safety of people and not cause financial
damage.
INFORMATION
Indicates technical information of particular importance which should not be neglected.

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1INTRODUCTION
1.1 SAFETY REQUIREMENTS
The software described in this document was designed for use with precision air-conditioning units such as “Close Control” units (for data processing centres).
The software was designed for use on the following control systems:
•control board EVOLUTION+ –Small with user terminals and PGD1 graphic interface
ATTENTION
The EVOLUTION+ controller software is protected by a digital signature.
This means that it can only work on boards supplied by MEHITS and not on boards purchased from other dealers.
1.2 GENERAL FUNCTIONS
Below is a non-exhaustive list of the functions of the application:
•Adjustment of room temperature and humidity according to the setpoints entered using the user terminal.
•Complete visualisation of the operating status of the unit.
•Possibility of setting the adjustment parameters, both the fundamental ones (entering the “User” password) and the more advanced ones (entering the “Service”
and “Factory” password).
•Possibility of manually managing (manual override) all the unit devices.
•Management and acoustic and visual signalling (visual only by default) of faults (alarms), events and maintenance, with memorisation up to 200 events.
•Possibility of serial control and management.
•Possibility of operating up to 10 units connected together in a local network LAN, also with one or two time-switched backup units.
1.3 UNITS CONTROLLED
The software in question can be installed on the following version of air-conditioning units.
Type and diagram
Description
Unit code
Features
SPLIT TYPE
These direct expansion units use
refrigerant for the transfer of heat. The air
in the room is, therefore, treated in the
evaporating coil where the refrigerant
flows.
The condensation heat is dumped by a Mr.
Slim external air condensing unit with
inverter compressor.
s-MEXT
•Direct expansion coil to use in combination with
the Mr. Slim condensing unit
•EC fans

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2USER INTERFACE
2.1 USER TERMINAL
2.1.1 Technical characteristics
The user interface comprises:
•132x64 pixel backlit LCD display.
•6 backlit buttons.
The connection between the microprocessor board and the user terminal involve a 4-pole telephone cable equipped with RJ11 connector. The terminal is fed directly from
the control board.
Figure 2-1: User terminal
2.1.2 General functions of keys and LEDs
Key
Name
Description
Key
Led
[ALARM]
Displays the alarms and resets normal
operating conditions.
Fixed in case of alarm and flashing in case
of signal.
Once the [ALARM] key is pressed, the led
becomes fixed.
In lack of alarms/signals, the led is off.
[PRG]
Accesses the main menu.
When the unit is operating (ON).
[ESC]
goes back one level in the mask tree if
you are in the header masks, or returns
to the main mask.
Upon turning on the unit, when pressing
any key or activating an alarm/signal.
It will disengage after three minutes of
inactivity on the keyboard of the user
terminal.
/
[UP] / [DOWN]
Move around the masks and set control
parameter values.
[ENTER]
Confirms entered data.
+ + /
[ALARM + PRG + UP / DOWN]
Increase or decrease screen contrast.
+
[ALARM + ESC]
In the shared keyboard mode, this
combination allows to share screenshots
and parameters among LAN connected
units.
Table 1: List of keys and related functions

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2.2 GENERAL CHARACTERISTICS OF THE INTERFACE
2.2.1 Groups of masks and menu structure
The tree structures for moving around the various menus of the controller are shown below.
The masks may be accessed through different menus using the [UP] and [DOWN] keys shown in the following figures with a double arrow . The [ENTER] or [ESC] keys
are identified by .
Main Mask
Select User
Menu
Alarm Menu
User
Password
Service
Password
Power On
Select Unit
Menu
Select Setpoint
Menu
Select I/O
Menu
Select Clock
Menu
Select Service
Menu
Esc
Esc
PRG
key
  
  
  
  
Alarm key
Esc
Esc User Menu
Service Menu
Setpoint Menu
I/O Menu
Clock Menu
Esc
Esc
Esc /  

Esc / 
Esc / 
Esc / 
Unit Menu
  
  
Esc
Esc
Esc / 
  
Esc / 
Esc Display Alarm
Display User
Display Service
Display Setpoint
Display I/O
Display Clock
Display Unit
Esc / 
Esc / 
Esc / 
Esc / 
Esc / 
Esc / 
Esc / 
  
  
  
  
  
  
  
Esc / Status pages
  
Select Log
Menu
Esc Log Menu
Esc / Display Log
Esc / 
  
  
Factory
Password
Select Factory
Menu
Esc Factory Menu
Esc /  
   Esc
Display Factory
Esc / 
  
Figure 2-2: Tree for moving around the menus
•The “Unit Menu” displays information such as temperature, pressure and circuit states.
•The “Setpoint Menu” is used to set the setpoints for the various available functions.
It is possible to set different setpoints depending on the available function modes (heat resources present, humidifier present, and dehumidifier present, etc.).
•The “In/Out menu” shows the status of the digital inputs and values read from the analogue inputs.
It also shows the status of the digital outputs and the voltage supplied to the analogue outputs.
If I/O expansions are present (depending on the configuration parameters), the inputs and outputs of the latter are also shown.
•The “Clock menu” is used to set and display the date and time and configure the time bands.
•The “Log menu” is used to display the list of alarm events recorded by the unit.
•The “User menu” is used to display and set parameters relative to user programming of the unit.
•The “Service” menu is used by Service to display and set unit configuration parameters.
•The “Factory menu” is used by the manufacturer to display and set unit configuration parameters.

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User Menu
Serial Menu
Selection
Alarm Out Menu
Selection
Scheduler Menu
Selection
Info Menu
Selection
Esc
  
  
  
Esc
Alarm Out Menu
Scheduler Menu
Info Menu
Esc
Esc
Esc / 
Esc / 
Esc / 
Serial Menu
  
Esc / 
  
Alarm Out 2 Menu
Selection
Esc Alarm Out 2 Menu
Esc / 
  
Figure 2-3: Tree for moving around the “User menu”
Service menu
Selection
Emergency menu
Selection
Regulations menu
Selection
Freecooling menu
Selection
Settings menu
Selection
Fan menu
Selection
Lan menu
Esc
Esc
  
  
  
  
Esc
Esc Emergency Menu
Lan menu
Freecooling menu
Settings menu
Fan menu
Esc
Esc
Esc / 
Esc / 
Esc / 
Esc / 
Regulations menu
  
  
Esc / 
Esc / 
  
Selection
Adjust menu
Esc Adjust menuEsc / 
  
Selection
Manual menu
Esc Manual menu
Esc / 
  
Selection
Optional menu
Esc Optional menu
Esc / 
  
Selection
Regulations 2
menu
Esc Regulations 2
menu
Esc / 
  
Figure 2-4: Tree for moving around the “Service” menu

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Factory menu
Selection Config.
menu
Selection
Functions menu
Selection
Compressor menu
Selection Valve
menu
Esc
  
  
  
Esc
Functions menu
Compressor menu
Valve menu
Esc
Esc
Esc / 
Esc / 
Esc / 
Config. menu
  
Esc / 
  
Selection Safety
menu
Esc Safety menuEsc / 
  
Selection Default
menu Default menu
Esc / 
  
Selection
Super User menu
Esc Super User menu
Esc / 
Selection Safety 2
menu
Esc Safety 2 menu
Esc / 
Esc
  
  
Figure 2-5: Tree for moving around the “Factory” menu
The access to the “User”, “Service” and “Factory” menus requires a password. The following chapter explains how to manage the passwords.
2.2.2 Password management
There are three menu levels that may be accessed upon entering a numeric password. The access levels are as follows:
•“User” password, for the user.
•“Service” password, for maintenance and assistance operators;
•“Factory” password, for the sole and exclusive use of the manufacturer’s employees (not to be disclosed externally).
To enter the password, type every single digit in the set order from left to right.
To move from one digit to the next, just press the [ENTER] key.
To move from one digit to the previous, just press the [ESC] key. If the cursor should be on the first digit to the left, then this brings back to the main window.
The following table shows the values of the “User” password, the “Service” password and the “Factory” password:
USER PASSWORD
1234
(modifiable)
SERVICE PASSWORD
FACTORY PASSWORD
9990
(modifiable)
0000009982
(modifiable)
The “Factory” password is managed using the Service software, which for each controller configures a Factory password, which is then saved in the job and is only
available to after-sales service.
Once at the last digit of the password, by pressing the [ENTER] key the software will compare the entered password with those stored in its memory. If the entered password
should not be correct, the message “Wrong Password !!!” will appear for a few instants, all digits will be reset, and the cursor will move back to the first digit, on the left end of
the password space.
To go back with the cursor to the previous password digit, just press the [ESC] key.
By pressing the [ESC] key with the cursor on the first digit on the left, the system goes back by one level.

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To change the “User” password access the “Info” menu inside the “User” menu and scroll the masks until the “User” password change mask appears:
Insert a NEW
USER
password
0000
The window to change the “Service” password, which can be accessed by entering the “Settings” menu, under the “Service” menu.
The window to change the “Factory” password can be accessed from the “Config” menu”, under the “Factory” menu.
OBLIGATION
If the Factory password is changed, remember to re-enter the password generated by the service software at the end of the test, after maintenance is
completed.
INFORMATION
Some parameters in the “Factory” menu can only be changed after switching off the unit (OFF).

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2.3 MAIN MASK
The figure below shows the main mask layout, including the (numbered) areas in which it is divided.
Figure 2-6: Main mask
The area above displays the hour and the date.
It also displays room humidity and temperature (only when the probe is installed) in real time (also in case the average value mode for the local LAN units connected should
be active). Following is a description of the main mask areas:
Zone 1: General unit status
Unit off
Unit operating in normal mode
Unit off but with fan in operation at low speed to prevent gas build-up
/ /
Unit operating on steady capacity mode
Normal operation / Maximum flow reached / Minimum flow reached
/
Unit operating on steady residual ∆P mode
Normal operation / Minimum flow reached
NOTE
If the icon flashes and the icons also flash at the same time, this means that the unit is on for post-ventilation of the electric heaters (see the relevant
paragraph in the chapter Heating). The flashing of the icon together with the flashing of the icon indicates that the unit is on because it is waiting for the Mr Slim
external unit to switch off.
Zone 2: Unit detail status
Presence of an active alarm
Unit on stand-by
Maintenance signal
Unit on for exceeding the maximum room temperature
threshold
Active manual controls
Unit on for exceeding the minimum room temperature
threshold
Unit on/off from terminal
Unit on for exceeding the maximum room humidity
threshold
Unit on/off from remote contact
Unit on for exceeding the minimum humidity threshold
Unit on/off from supervision system
Blinking
Unit on for electric heater post-ventilation function
Unit on in local LAN
Unit off and powered by ULTRACAP
Unit turned on for LAN disconnection alarm
ZONE 11
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE 5
ZONE 6
ZONE 7
ZONE 9
ZONE 10
ZONE
12
ZONE 3_A
ZONE 8
D
D
Y
Y

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TRANSLATION OF THE ORIGINAL INSTRUCTIONS
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Zone 3: Type of event, shown in case of event
EEPROM faulty
Room temperature probe faulty
LAN disconnected
Room humidity probe faulty
ADL function at operating limit
Feed air temperature probe faulty
Water leaks (flooding)
External air temperature probe faulty
High ambient temperature
Differential pressure transducer faulty
Low ambient temperature
IO 1 expansion alarm offline (ind. 8)
High ambient humidity
T+H probe offline alarm
Low ambient humidity
Humidifier driver offline alarm
Air flow alarm
Network transducer offline alarm
Phase sequence wrong
Circuit 1 frost-free function alarm
Filters clogged
Circuit 2 frost-free function alarm
Fire/smoke detected
BMS1 offline
Electric element overheating
Master PAC-IF offline alarm
High humidifier current
Slave 1 PAC-IF offline alarm
Low humidifier current
Master PAC-IF alarm
No water to the humidifier
Slave 1 PAC-IF alarm
Gas leak detected
In case of several active events, the area displays the event having higher priority of all the present events. The order of severity for the events displayed in this area reflects
the order in which the alarms are reported in the table, from the most to the least severe. The severity of the events is valued based on the consequences they imply for the
operation of the conditioning unit.
Area 3_A: Code of the event corresponding to the icon shown in area 3
As well as the code, the event type is also displayed (Signal or Alarm).
Zone 4: “Cold” devices currently in operation
At least one compressor of an Mr Slim unit is active
NOTE
If icon flashes intermittently, the request for compressor start-up is in process, but a countdown is active for PAC-IF dedicated protection timing purposes (see the
corresponding section in the safety function chapter).
Zone 5: Currently active “Freecooling” devices
Direct Freecooling damper in adjustment
Zone 6: “Humidity” devices currently in operation
Dehumidifier active
Humidifier active
When the icon flashes intermittently, the dehumidifier activation request is in process, though a temperature block is active (high or low temperature threshold, minimum
temperature threshold).
On the other hand, the icon flashing indicates that there is a pending dehumidification request, but a compressor protection time count is running.

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Zone 7: “Hot” devices currently in operation
First electrical element step active
Second electrical element step active
Third electrical element step active
Blinking
Electric heaters Post-Ventilation function active
Zone 8: Current unit ON/OFF status
This parameter can also be used to switch the unit on/off.
Zone 9: Serial address of the unit (when supervision operation enabled).
Zone 10: LAN address of the unit (where the local network (LAN) is engaged).
Zone 11: The type of unit
Split Type unit
Split Type unit with Direct
Freecooling
In recirculation position (only internal air)
In internal air + external air mixing position
In external air-only position
Zone 12: Display of active functions icon
This area shows the icon, which indicates the presence of active functions, and the “Active function display” mask, where it is possible to see which functions are actually
active (more details in the following pages).

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2.4 MAIN LOOP MASKS
The main loop masks have the following functions:
•Provide a complete overview regarding the status of the unit.
•Provide useful information to the unit maintenance operator.
2.4.1 List of the main loop masks
Main Mask
Active Functions Mask
Temperature Values Read Mask
Additional T/H Probe Mask
PAC-IF
Summary Mask
Esc
  
  
  
Esc
Esc
Esc
  
  
PAC-IF Master
Summary Mask
Esc

  
PAC-IF Slave
Summary Mask
  
Gas Pressure Transducers Mask
  
Unit on LAN
Mimic Mask (on Slave Unit)
  
LAN Temperatures
Mimic Mask
  
Unit on LAN
Mimic Mask (on Master Unit)
  
APL Mask
  
ADL Mask
  
Air Flow
Control M ask
  
Air Pressure Differential
Control M ask
  
Direct Freecooling Mask
  
Internal Humidifier Mask
  
Network Transducer Masks
  
GSM Modem Masks
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc
Esc

Esc / PAC-IF Master
Main Mask    PAC-IF Master
Adjustment Mask    PAC-IF Master
Temperature Masks    PAC-IF Master
Status Mask
Esc Esc Esc Esc
Esc / PAC-IF Slave
Main Mask    PAC-IF Slave
Adjustment Mask    PAC-IF Slave
Temperature Masks    PAC-IF Slave
Status Mask
Esc Esc Esc Esc
Figure 2-7: Main menu navigation tree
2.4.2 Main loop mask table
Press [UP] or [DOWN] to move from one mask to another.
Below are the main loop masks

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TRANSLATION OF THE ORIGINAL INSTRUCTIONS
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Mask of the terminal
Description
ACTIVE FUNCTIONS
DELAY FOR TIME
OBSERVATION
Mask that displays the active functions of the unit
Visible only when certain functions are active
24.0 °C 15.0 °C
35.0 °C
Active probe value display mask
•Return temperature probe
•Delivery temperature probe
•External temperature probe
AUXILIARY T-H PROBE
Addr. 129
24.0 °C
50.0 %
Status:Offline
Mask that displays the value of the serial auxiliary probe (address 129).
Visible if the probe is configured
REQUEST STATUS
Cooling request: 100%
Step request: 11
Waiting: NONE
Mask displaying the requests of cold and steps sent to the PCA-IF013B-E card
It also shows if the system is waiting for the expiry of a time delay before sending the steps to the Master PAC-IF013B-E card:
•[NONE] No delay
•[SHORT WAIT] Short delay (300s / 5min)
•[LONG WAIT] Long delay (600s / 10min)
•[CHANGING MODE] Cycle inversion/mode change (120 s / 2min)
•[MIN T.OFF] Minimum Off (120s / 2min)
PAC-IF013B-E MASTER
Active step: 11
Mode: COOLING
Status:Online
Master PAC-IF013B-E status
Pressing [ENTER] will take to the section containing additional Master PAC-IF card information
In case of alarm, the icon will flash showing the “PAC-IF code:” message followed by the alarm code from the PAC-IF card.
For additional information on the meaning of the code, see the “Event Mask” chapter.
PAC-IF013B-E SLAVE1
Active step: 11
Mode: COOLING
Status:Online
Slave 1 PAC-IF013B-E status
Pressing [ENTER] will take to the section containing additional Slave 1 PAC-IF card information
In case of alarm, the icon will flash showing the “PAC-IF code:” message followed by the alarm code from the PAC-IF card.
For additional information on the meaning of the code, see the “Event Mask” chapter.
0 08.0bar 08.0bar
03.3°C 03.3°C
Mask for the display of the values of the active probes and their conversions into temperature
•Circuit 1 low pressure switch
•Circuit 2 low pressure switch
LAN 1: 2: 3:
4: 5: 6:
7: 8: 9:
10:
Visible if the local network (LAN) is configured Local network (LAN) status display mask. This mask is displayed only at the Master
unit (LAN address=1).
Unit operating Unit in stand by Unit in rescue mode
Unit not operating Unit with Hot-Spot protection Unit with Cold-Spot protection
When enabled it is possible to view the status of the ADL LAN function:
•ADL enabled ADL operating limit reached

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Mask of the terminal
Description
99.9 99.9 99.9
99.9 99.9 99.9
99.9 99.9 99.9
99.9LAN:Local Unit
Temp.(°C)
Mask that displays all the temperature values read by the units on the LAN network. This mask is displayed only at the Master unit
(pLAN address=1).
Visible if the pLAN is configured
LAN 1: 2: 3:
4: 5: 6:
7: 8: 9:
10:
Local network (LAN) status display mask. This mask is displayed only in the Slave unit (LAN address=2÷10).
Visible if the local network (LAN) is configured
Unit operating Unit not operating
01 LAN APL
Current 0020 Pa
Target 0020 Pa
APL 0020 Pa
Local 0019 Pa
Status
On target
APL pLAN function operation status display mask. This mask is displayed for all the units (pLAN address=1 to 10).
Visible if the pLAN is configured and the APL function is active
DT 03.0
T.INT T.EXT
24.0 21.0
Status Enabled
Position ALL INTERNAL
000%
Direct Free Cooling function operation display mask.
Visible only if the function is enabled
It shows:
Internal temperature, external temperature, Freecooling enable, damper position (internal only, mix, external only) and its opening
percentage. The image graphically describes the Free Cooling damper position:
000.0kg/h
A 00.0
µS/cm000
Alarm Warning
code:00 code:0
Humidifier operation status display mask.
Visible if humidifier is present
Energy Managment
Voltages (V) 000
Current (A) 000.0
Active Power(kW)0000.0
Display mask for the values detected by the network transducer in case on mono-phase circuit.
Visible if the network transducer is present and configured
Energy Managment
Voltages (V)
L1-L2 000
L2-L3 000
L3-L1 000
Neutral 1 000
Neutral 2 000
Neutral 3 000
Display mask for the electric values detected by the network transducer. Displays phase-phase and phase voltage (phase-
neutral) values.
Only for three-phase units.
Visible if the network transducer is present and configured
Energy Managment
Current (A)
Line 1 000.0
Line 2 000.0
Line 3 000.0
Neutral 000.0
Display mask for the electric values detected by the network transducer. Displays phase and neutral current.
Only for three-phase units.
Visible if the network transducer is present and configured
Energy Managment
Active Power (kW)
Phase 1 0000.0
Phase 2 0000.0
Phase 3 0000.0
Total 0000.0
Display mask for the electric values detected by the network transducer. The phase active power is displayed
Only for three-phase units.
Visible if the network transducer is present and configured

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Mask of the terminal
Description
Energy Managment
Energy: 0000000kWh
Time: 0000000 h
Network transducer active energy and hour counter display mask.
Visible if the network transducer is present and configured
Input/Output GSM modem
Status:
Stand-by ext.modem
Offline 000%
Timelnextncallr:0000 s
SMS Queue: 00
GSM modem status display mask.
Visible if the GSM modem is present and configured
PAC-IF
MASTER
Mask confirming access to the Master PAC-IF013B-E card additional information section.
Press “Esc” to return to the Master PAC-IF013B-E card status mask.
PAC-IF013B-E Master
Status: ON
Mode: COOLING
Step: 11
Communication: Online
Master PAC-IF info mask:
•Status
•Method
•Communication
•Adjustment step
PAC-IF013B-E Master
TH11: 10.0°C
TH5: 13.0°C
TH2: 09.0°C
Master PAC-IF info mask:
•Suction temperature probe (TH11)
•Two-phase temperature probe (TH5)
•Liquid temperature probe (TH2)
PAC-IF013B-E Master
TH7: 10.0°C
Master PAC-IF info mask:
•External temperature probe (TH7)
PAC-IF013B-E Master
Compressor Status: ON
Predefrost: OFF
Defrost: ACTIVE
Selfprotection: ACTIVE
Software ver. 000001
Master PAC-IF info mask:
•Compressor status
•Pre-defrost
•Defrost
•Self protection
•PAC-IF SW version
PAC-IF
SLAVE1
Mask confirming access to the Slave 1 PAC-IF013B-E card additional information section.
Press “Esc” to return to the Slave 1 PAC-IF013B-E card status mask.

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Mask of the terminal
Description
PAC-IF013B-E Slave1
Status: ON
Mode: COOLING
Step: 11
Communication: Online
Slave 1 PAC-IF info mask:
•Status
•Method
•Communication
•Adjustment step
PAC-IF013B-E Slave1
TH11: 10.0°C
TH5: 13.0°C
TH2: 09.0°C
Slave 1 PAC-IF info mask:
•Suction temperature probe (TH11)
•Two-phase temperature probe (TH5)
•Liquid temperature probe (TH2)
PAC-IF013B-E Slave1
TH7: 10.0°C
Slave 1 PAC-IF info mask:
•External temperature probe (TH7)
PAC-IF013B-E Slave1
Compressor Status: ON
Predefrost: OFF
Defrost: ACTIVE
Selfprotection: ACTIVE
Software ver. 000001
Slave 1 PAC-IF info mask:
•Compressor status
•Pre-defrost
•Defrost
•Self protection
•PAC-IF SW version