CIAT AeroCONNECT 1B Use and maintenance manual

AEROCONNECT 1B
01 - 2017
EN7510364-00
Control manual

EN
EN - 1 EN7510364-00
CONTENTS PAGE
1 - IMPORTANT RECOMMENDATIONS 2
1.1 Power supply 2
1.2 Electronic board specifications 2
1.3 Caution 2
1.4 Earth 2
1.5 Sensor connections 2
1.6 Communication BUS connections 2
1.7 "ON/OFF" input connections 2
1.8 "ON/OFF" output connections 2
2 - THE CONTROL CONSOLE 3
2.1 Board functions 3
2.2 Board version 3
2.3 Usage limitations 3
2.4 Electrical 3
2.5 Compatible equipment 3
2.6 Description of the console (local and remote) 4
2.7 The display 4
2.8 Menu tree 5
3 - NAVIGATING THROUGH THE MENUS 6
4 - BOARD FUNCTIONS: DESCRIPTION 7
4.1 Control selection 7
4.2 Machine automatic operation control 10
4.3 Override control 10
4.4 Two setpoints 10
4.5 Stage runtime balancing 10
4.6 Misting (units with spray ducts). 10
4.7 Free-cooling 12
4.8 Warming function 13
4.9 CMS link (menu 11) 14
4.10 Link with a CIAT chiller 14
5 - OPTIONS 15
5.1 Energy meter (From V07) 15
5.2 Relay boards 15
5.3 Remote control console 15
6 - ELECTRICAL CONNECTIONS 16
6.1 Connection diagram 16
6.2 Board connections 17
7 - DRYCOOLER CONFIGURATION 20
7.1 Configurations 20
7.2 System start-up and configuration 20
7.3 Information available while the unit is running 22
7.4 Factory-set parameters 23
8 - CONDENSER CONFIGURATION 23
8.1 Configurations 23
8.2 System start-up and configuration 24
8.3 Information available while the unit is running 25
8.4 Factory-set parameters 26
9 - CMS COMMUNICATION PROTOCOL 26
9.1 Communication interface 26
9.2 RS485 transmission mode (From V07) 27
9.3 Remote signalling register (read-only) 27
9.4 Remote alarm register (read-only) 28
9.5 Remote measurement register (read-only) 28
9.6 Fault memory 28
9.7 Counters (read-only) 29
9.8 Remote configuration register (read and write) 29
9.9 Function 1, 2: read N bits 31
10 - PARAMETER TABLE 32
11 - GLOSSARY 39
Original text: French Version

EN7510364-00 EN - 2
1 - IMPORTANT RECOMMENDATIONS
Your machine is fitted with a microprocessor-controlled electronic board; it is essential to observe the regulations below to ensure
correct operation.
1.1 Power supply
Remote control: Voltage 230 V VAC/50 Hz.
If the remote control of the machine has a separate feed
(transformer not supplied), the following must be prepared:
1 - A feed line taken directly from a distribution point (this line
must only go to the remote control of the machine).
2 - This feed line must be kept at least 1 metre away from all
power lines (400 V).
1.2 Electronic board specifications
Power input of the boards: 35 Watts.
Maximum permissible voltage and current per input/output:
253 VAC -3.15 A.
The board feed is connected to a 3-point screw terminal with
terminals marked for:
1 - Live,
2 - Neutral,
3 - Earth.
Board fuse specifications:
Schurter fuse in series, UMT 250 VAC 3.15A. Time delayed 10 x 3,
ref. 34031 0171.
Environmental conditions of use:
- Storage → Temperature -40/+80°C, humidity 5/85% without
condensation.
- When operating → Temperature -20/+70°C, humidity 5/85%
without condensation.
Pollution degree: 3.
1.3 Caution
Always read the instructions in the manual before performing
any operation on the product.
Disconnect the power and ensure no voltage is present before
carrying out any operation on the board.
The board must not be accessible when it is powered on, to
avoid the risk of electric shocks.
Certain parts of the board (USB and Ethernet connections)
may be hot. Depending on the ambient temperature, these may
pose a burn risk. Therefore, avoid touching these connections
when plugging into them.
Warning:
There is a danger of explosion if the battery is replaced with the
wrong type.
Dispose of used batteries in accordance with the requirements
for this type of product.
1.4 Earth
The unit must be earthed (using an official earthing system
which complies with French standard C15.100).
1.5 Sensor connections
Do not pass connection cables near to a power line (400 V) or
remote control line (230 V). If the distance is greater than 6 m,
use shielded cable connected to the earth on the equipment
side.
Maximum distance 25 m.
1.6 Communication BUS connections
1.6.1 Specifications of the connecting cable
- Flexible cable
- 2 shielded wires
- Cable capacitance and shielding: 120 pF/m
- Resistance: 56 Ω/km
- Example of cable: FILOTEX FMA - 2P
FILOTEX IBM 7 362 211
1.6.2 Shielding connection
- Connect the shielding of the CMS or microcomputer to earth.
- Ensure continuity up to the last piece of equipment.
i.e. the communication cable shielding must be connected
between each piece of equipment.
- Do not connect the shielding to the equipment's earth.
- On each piece of equipment, the length of wire protruding
from the shielding should be as short as possible (2 cm).
1.6.3 Cable routing
- The cable routing must be at least 30 cm away from any 230
V or 400 V cable.
- If a 230 V or 400 V cable intersects with a computer connection
cable, it must do so at a right angle.
1.7 "ON/OFF" input connections
●Distance less than 30 metres:
- Use a shielded cable and keep it at least 30 cm away cm
from all lines that could generate interference; the shielding
will be connected to the earth on the equipment side. If there
are several shielded cables, each shielding must be connected
separately. (If there is still a risk of interference, the various
inputs will require relays).
●Distance greater than 30 metres:
- Prepare relays for the different inputs, 1 relay per input to be
mounted close to the electronic board (cable size: 0.5 mm2)
K: Auxiliary relay (to be fitted close to the electronic board)
CA: Automatic Operation Control (for each machine)
1.8 "ON/OFF" output connections
Potential-free dry contacts. Maximum current of 2 A (AC1 load),
minimum of 5 mA. Voltage of 12 to 230 V AC. Maximum
connection cross-section of 2.5 mm2.

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2.1 Board functions
Integrated in an electrics box, this board performs the following functions:
●Temperature or pressure control,
●Operating settings check,
●Communication with CIAT water chillers,
●Diagnostic and fault storage,
●Communication with the remote control console, ancillary boards and customer CMS (Modbus).
2.2 Board version
The version number is indicated on an adhesive label found on the board
2.3 Usage limitations
Room air: chap.1.2
Single-phase fluid  min./max. adjustment temperature = 5/90°C (up to 150°C optional)
Refrigerant fluid min./max. set pressure: 5/45 bar
2.4 Electrical
Board supply voltage: 230 V +6%, -10%
2.5 Compatible equipment
The board is used to control the drycoolers and the air-cooled condensers. Possible unit configurations and identification
conventions:
Flatbed coil V coil
Unit with one or two fan lines
Unit with one or two coils
Unit with one or two circuits
Line 1 Line 1 Line 2
Coil 2
Coil 1
Coil 1 Coil 2
Circuit 1 Circuit 2
2 - THE CONTROL CONSOLE

EN7510364-00 EN - 4
2.7 The display
Three-line LCD display
Displays system readings and controls.
2.6 Description of the console (local and remote)
Identification Visual Function
A
On/off button
BLED on = system powered on
CFan fault acknowledgment
D*LED on = fault
E
Press this button to select setpoint 1 or 2
The LEDs show the active setpoint.
FDisplay screen
GMenu navigation buttons: see section "3 - Navigating through the menus"
LED state Meaning
Off Machine stopped
On Machine operating
Flashing Machine stopped by automatic operation control
G
A
BC
D
F
E

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2.8 Menu tree
There are eight main menus for controlling the system.
Each menu contains different parameters.
2.8.1 Menu list
MENUS DESCRIPTION
1 - Setpoints Change setpoints - Menu not displayed if the unit is run with a CIAT water chiller.
2 - Machine state Default menu. Read only - information on the operation of the machine.
3 - Measured values Displays read-only temperature and pressure values.
4 - Machine configuration Machine configuration parameters
5 - Settings parameters Configuration of the control and various options
6 - Reading parameters Displays the state of the inputs, outputs, meters, etc. (read-only).
7 - Fault memory Shows the nine most recent faults (read-only).
11 - Communication MODBUS and TCP protocol configuration (from V07)
2.8.2 Structure of the menus
All information in the menus is displayed in a tree structure.
This tree structure is split into three levels, as shown in the diagram below.
MENUS PARAMETERS MODIFICATION OF
THE VALUES
1 - Setpoint
2 - Machine
state
3 - Measured
values
4 - Machine
parameters
5 - Settings
parameters
6 - Reading
parameters
7 - Fault
memory
11 -
Communication
A100 Language
A203 ----------
A100 Language
A100 Language

EN7510364-00 EN - 6
Four buttons are available for navigating through the menus
Button Menus level Parameters level Values level
Back to Menus level Back to Parameters level
Select menu Select parameter Confirm value and go back to parameters
Menu scroll buttons
Scroll through the parameters
Decrease the parameter
value or scroll
through the values
Increase the parameter
value or scroll
through the values
Pressing and holding the '+' or '-' button will cause the display to scroll faster
Powered on:
The "machine stopped - on/off" menu [2-Machine state] screen appears.
Press to go back to the menu list.
If the console is not used for one hour, the [2-Machine state] menu reappears.
Press to go back to the menu list.
Arrows on the right of the screen indicate that additional information is available. To see this information, press the + or - button.
example:
COIL PRESSURE↑
2 0 . 7 B ↓
The active line in a menu is shown by a flashing box to the left of the menu number.
example:
A100LANGUAGE
E N G L I S H
The use of each button is described in the table below:
 Press these buttons firmly!
3 - NAVIGATING THROUGH THE MENUS

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4 - BOARD FUNCTIONS: DESCRIPTION
4.1 Control selection
There are 4 types of control are possible depending on the value of parameter A07.
●On/Off: In-series control by activation of fan stages.
●Variable speed control: Fan speed control by EC motor.
●Mixed 1: Variable speed control on one stage then activation of the other On/Off stages depending on the speed of the EC fan
●Mixed 2: Variable speed control on one stage then activation of the other On/Off stages when the EC fan is at 100%
●Mixed 3: Variable speed control on one stage then activation of the other On/Off stages depending on the temperature and the
temporization
4.1.1 On/Off control (stages)
This control is used to control the fan stages, its configuration is "IN SERIES".
Control can be for condensation pressure or temperature.
Each circuit has a control loop and can have different control setpoints but the number of stages is the same.
There are 2 types of On/Off control:
2
3
4
5
6
A152 :
A154 :
A156 :
A158 :
A160 :
A159 :
A157 :
A155 :
A151 :
A153 :
1
A150 :
EXAMPLE FOR CIRCUIT 1
A121 or A122 Setpoint Measurement
Stage no.2
Stage no.3
Stage no.4
Stage no.5
Stage no.6
Stage 6 hysteresis
Stage 5 hysteresis
Stage 4 hysteresis
Stage 3 hysteresis
Stage 2 hysteresis
Stage 1 hysteresis
●For drycoolers from V07
The diagram below illustrates the operating principle:
- When the fluid temperature (measured) is
between A121-A106 and A121+A106, the fan
stages are not active.
- When the fluid temperature < A121-A106 and the
temperature continues to drop for a duration < A108
the control system will shut off a control stage.
- When the fluid temperature > A121+A106 and
the temperature continues to rise for a duration >
A107 the control system will activate an additional
control stage.
● For the condensers + drycooler before
V07 on the board
- The fan stages are engaged
according to the stage hysteresis
and stage ∆.
- Each control loop has its own stage
hysteresis and its own stage ∆
CONTROL STAGE
A107
A108
A121
-
A106
A121
+
A106
A121 ou
A122
Stage no.7
Stage no.3
Stage no.2
Stage no.1
Temp
outside
range
Temp
outside
range
Measurement
Setpoint
A121 or
A122
CONTROL STAGE

EN7510364-00 EN - 8
4.1.3 Mixed control 1
Used for variable speed control on stage 1. The other fan stages are controlled in series according to the stage 1 control signal
(0/10 V) which corresponds to the fan speed (0/100%).
The diagram below illustrates this type of control:
4.1.2 Speed control
Used to control the speed of all fans with EC motors.
●The board sends a 0-10V signal to control the EC.
●The following diagram illustrates the output signal according to the measurement taken on the fluid (temperature or pressure)
and the setpoint.
1 0/10V output signal for 1 FMA line units and/or 1 circuit
units.
2 0/10V output signal for 2 FMA line units and/or 2 circuit
units.
Stage operation:
Stage control is defined according to a percentage
of the operating range of the 1st stage.
7 stages:
5-15-25-30-40-45% and 50-55-65-75-85-95%
6 stages:
5-15-25-35-45% and 55-65-75-85-95%
(see example)
5 stages:
10-20-30-40% and 60-70-80-90%
4 stages:
10-25-40% and 60-75-90% for stages 2-3-4
3 stages:
15-30% and 70-85% for stages 2-3
2 stages:
20 and 80% for stage 2
EXAMPLE FOR CIRCUIT 1, COIL 1
5,5V 6,5V 7,5V
A121 A121 +A150
0,5V 1,5V 2,5V 3,5 4,5V 8,5V 9,5V V
2nd stage
3rd stage
4th stage
5th stage
6th stage
Measurement
Fan control
signal
(Setpoint)
The diagram illustrates this operating mode for a system with 6 control stages The diagram illustrates this operating mode for a
system with 6 control stages
A121 + A150
0V
10V
EXAMPLE COIL 1, CIRCUIT 1, SETPOINT 1
Voltage
Measurement
(A150 = hysteresis)

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ΔΔ
23
Δ
45
Δ
6
100
%
0 %
Δ
Stage Stage Stage Stage Stage
Measurement
Setpoint +
Stage 1
hysteresis
Setpoint
Hysteresis Stage 6
Hysteresis Stage 5
Hysteresis Stage 4
Hysteresis Stage 3
Hysteresis Stage 2
STAGE no.6
STAGE no.5
STAGE no.4
STAGE no.3
STAGE no.2
STAGE no.1
4.1.4 Mixed control 2
Used for variable speed control on stage 1.
The other fan stages are controlled in series when the 1st stage is at 100%.
The following diagram illustrates this operating mode for a system with 6 control stages.
●Regulation of floors On/Off (AC fans):
- If the fluid temperature> A121 + A106 and when
the temperature continues to rise for> A107
regulation put into operation an additional control
stage.
- If the fluid temperature <A121-A106 and when the
temperature continues to drop for a period <A108
the control, cut a regulation stage
- If the fluid temperature (measured) is between
A121 - A106 and A121 + A106, there is no action
on the stage of AC fans.
The diagram illustrates this operating mode for a device
with 7 stages of regulation
A108 A107
A121 ou A122
A115
A121 + A106
A121 – A106
If no stage AC
If stage AC
CONTROL STAGE
Stage no 7 AC
Stage no 3 AC
Stage no 2 AC
Stage no 1
Temp
outside
range
Temp
outside
range
Measurement
Setpoint
4.1.5 Mixed control 3
The stage no 1 (EC) is is always the first lit floor and the switched top floor off.
The other floors, of the fan (AC) light up depending on the A110 setting.

EN7510364-00 EN - 10
4.2 Machine automatic operation control
Used to remotely authorise or prohibit the operation of the machine.
The machine is on when the contact is closed (J6 terminals 2-3).
4.3 Override control
Used to turn on all the fans. The fans operate when the contact is closed (J6 terminals 1-3).
4.4 Two setpoints
Used, for example, for summer/winter or day/night operation. Each circuit can have up to two control setpoints. Setpoints 1 to 2
can be switched via the potential-free (dry) contact (J6 terminals 4-6), the console or over a CMS.
4.5 Stage runtime balancing
The running time of each fan stage is balanced by a time meter. The type of balancing of the fan running time can be configured
with A110.
4.6 Misting (units with spray ducts).
Parameter A10 = YES
Used to increase the efficiency of the drycooler by misting tiny droplets of water into the ambient air to cool it through evaporation.
To activate this function, set parameter A10 = YES
A 1 0 M I S T I N G
Y E S
2 possible options depending on the value of parameter A113:
- Optimised water consumption A113 = WATER: the water misting does not start until all the stages are on.
- Optimised electricity consumption A113 = ELEC: the water misting does not come on until the outdoor temperature
reaches the defined value (parameter A199)
A 1 1 3 M I S T I N G
W A T E R O P T I M I S A T I O N
E L E C O P T I M I S A T I O N
Default value
Other setting values
●Control stage No. 1 (EC fan):
The control signal (0 / 10V) of the stage # 1 varies as
follows:
- Measurement = A121 (or A122) – A106 → 0V
- Measurement = A121 (or A122) + A106 → 10V
The operation of the stage 1 (EC) without stage AC is on.
A108 A107
A
121 ou A122
A121 + A106
A121 – A106
S T A G E EC
0/10
Stage no 1
Temp
outside
range
Temp
outside
range
Measurement
Setpoint
●Operating the stage No. 1 (EC) with at least one
switched AC stage
- If an AC stage is in operation, the minimum speed
of the stage = A115.
The A115 setting is adjustable from 0 to 5V in
increments of 0.1.
Default value of A115 = 2V
- When the last AC stage is stopped, stage speed
No. 1 may be less than A115 the after A108
time.
A108 A107
A
121 ou A122
A115
A121 + A106
A121 – A106
S T A G E EC
Stage no 1
Temp
outside
range
Temp
outside
range
Measurement
Setpoint
A115/10V
A115

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EN - 11 EN7510364-00
●Optimised water consumption (A113 = WATER):
The water misting does not start until all the stages are on and the measurement is above the value of parameter A200.
With On/Off or Mixed control
In this case, misting is controlled as an additional control stage.
When the drycooler is at 100% power and the fluid temperature continues
to increase to the value of parameter A200, misting is activated.
A200 MISTING STAGE
DIFFERENCE 2 °
During On/Off control, misting is stopped when the fluid measurement
is equal to the corresponding value at 50% of the operating range of
the last fan stage.
During mixed control 1, misting is stopped when the fan output signal
is equal to 6V.
With variable speed control
From version V07 it is possible to activate misting before being
at 100% on the drycooler by modifying the value of parameter
A113.1.
A113.1VOLTAGE THRESHOLD
MISTING CTRL 1 0 V
●Electrical optimisation
Water misting is activated when the outdoor temperature reaches
the value of parameter A199 and at least one control stage is
activated.
A199 OUT. TEMPERATURE
DIFFERENCE 35°
Misting is stopped in one of the following cases:
Outdoor temperature < A199 - 2°C
No control stages active
A199
Misting
temperature
Outdoor
temperature
A121
100%
A200
CONTROL STAGE
Setpoint
Measurement
∆ Misting
stage
A121 A121
+ A150
8V
0V
10V
(Valeur A113.1 = 8)
Misting control
Fan control signal
Measurement
Setpoint
FAN CONTROL
(Value A113.1 = 8)
Misting control

EN7510364-00 EN - 12
4.7 Free-cooling
4.7.1 List of parameters
No.
PARAMETER NAME PARAMETER ADJUSTMENT
Description Display conditions Adjustment possible By default
A111 FREE COOLING OPERATION
A10 = NO
A02 = (1 or Yes) and
A03 = 1 LT water circuit
YES or NO NO
A112 SELECTION EXT. TEMP. A111 = Yes 5 to 20 in increments of 1 10
A117 MIN DIFFERENCE FOR FREECOOLING
DEACTIVATION A111 = YES 0.5°C to 15°C in increments
of 0.5 2
A118 MAX DIFFERENCE FOR
FREECOOLING ACTIVATION A111 = YES 1°C to 10°C in increments
of 0.5 4
4.7.2 Schematic diagram
Depending on the difference between the return operating temperature and the outdoor air freecooling operation is authorised
(or not). If the value of the difference is less than A117 freecooling operation is stopped and when the value is greater than A118
operation of the drycooler is authorised.
In free cooling operation, priority of operation is given to the drycooler. The drycooler controls the control stages according to the
control setpoint and the fluid temperature. When the drycooler is at 100% power it will send control authorisation to the water
chiller. The water chiller controls according to its own parameters. This authorisation is timed for 15 minutes when the drycooler
is started.
4.7.3 Electrical connections
●ADD2 board
Rotary switch RC1 in position 2
CONNECTOR/
TERMINALS DESIGNATION DIRECTION OF ACTIO
On/Off outputs
J3 terminals 1-2 Water chiller in free cooling mode
Provision of 2 dry contacts with direction
of action reversed.
The contact closes to allow the
operation of the water chiller.
J3 terminals 1-3
(From V13)
The contact opens to allow the
operation of the water chiller.
J3 terminals 4-5-6
Free cooling valve control
Terminal 4: voltage 230V 50Hz
Terminal 5: Fluid towards the chiller
Terminal 6: Fluid towards the drycooler
See wiring diagram
Note:
For CIAT water chillers, do not connect J3 1-2; instead, use
the bus connection (J10 water chiller board/J9 drycooler board)
J2
J5
J6
J4
J8 J7
RC1
J3
J1
++
0
1
2
3
4
5
6
7
8
9
54321
321
1234
1234
45678123567891234
5432110 9876
10 9876
15 14 13 12 1120 19 18 17 16
2468101214
16
13579111315
Assembly with two 2-way valves
TT
V1
V2
WATER
CHILLER
Sensor
Return
operating
temperature
Assembly with two 3-way valves
Sensor
Return
operating
temperature
WATER
CHILLER TT
V1

EN
EN - 13 EN7510364-00
4.7.4 Operation
Tu: Return operating temperature
Ta = Free cooling off air temperature
Ta = Tu – A117
When the outdoor temperature exceeds the value Ta, free
cooling will be stopped if the drycooler is already at 100%
Td = Air temperature value authorising the start of free
cooling operation =
Td = Tu – A118
When the air temperature is below the value Td, free cooling
operation is authorised
Valve position
The 2-way valves can be controlled by the motherboard if the
following conditions are met: max current = 3A - max voltage =
230V. Refer to the water circuit pump curve for the valve sizing.
When the outdoor temperature is greater than the value Ta, the drycooler will stop, the valves will switch and the following
message will appear.
F R E E C O O L I N G O F F
4.7.5 Parameter A112
The value of A112 corresponds to the air temperature that allowed it to select the drycooler.
This parameter is not for free cooling operation, it is for detecting a fault.
If the air temperature is < (A112 - 5°C) and the drycooler is operating at 100% power, the drycooler will authorise operation of the
water chiller and the fault message below will appear.
C H E C K
THE INSTALLATION
This fault is timed for 15 minutes from start-up. The fault is acknowledged by pressing the reset button.
If the temperature drops below that of value " 5" the parameter will be deactivated and control of this fault is inactive.
4.8 Warming function
This function is available for drycoolers with 1 coil and 1 circuit from version V07.
It is activated by selecting the parameter A109
A 1 0 9 OPERATION OF
COOLING
W A R M I N G W I T H C O N T R O L
WARMING WITHOUT CONTROL
If A109 = COOLING (standard operation). The number of fan stages and/or the fan speed increases if the temperature of the fluid
increases
If A109 = WARMING the drycooler will heat the fluid using outdoor air during a warm period. This function requires the installation
of the outdoor sensor. When the outdoor air temperature is above the value of parameter A109.1, the warming function is active.
Two types of operation are possible: with or without control.
A 1 0 9 . 1 O U T . T E M P W A R M I N G
O P E R A T I N G O R D E R 1 0 °
When the outdoor air is < A109.1 - (1°C) the warming operating order becomes inactive.
If the operating order is inactive the fans are not active.
If A109 = WARMING WITHOUT CONTROL:
If the water temperature < (Outdoor air temperature - 2°C all the
fans will operate at 100%
If the water temperature >= (Outdoor air temperature - 1°C) the
fans will stop
If A109 = WARMING WITH CONTROL
Control is at around setpoint A121 or A122.
This control is the opposite of the cooling function. The number
of fan stages and/or the fan speed decreases if the temperature
of the fluid increases.
Default value
Other setting values
Tu
Tu
Ext. air T°
Hysteresis
zone
FREE COOLING
operation
Authorised
FREE COOLING
operation Not
Authorised
A118 = 4
A117 = 2
e.g. Tu = 12°C
12°C
Td =
8°C
Ta =
10°C
Tu
Tu
Td =
8°C
Ta =
10°C
Ext. air T°
Hysteresis
zone
Closed
Open Closed
Open
A118 = 4
A117 = 2
e.g. Tu = 12°C
12°C

EN7510364-00 EN - 14
Switching to the cooling function (standard) from warming can
be done via the BUS connection.
In the event of an outdoor temperature sensor fault the warming
function is stopped.
100%
Fans
A109.1 =
Selection
temperature
Outdoor
temperature –
Water temp ≤ 1
Outdoor
temperature –
Water temp ≥ 2
4.9 CMS link (menu 11)
(from V07)
With the exception of the language, control type (local, remote) and communication parameters, all the parameters can be
accessed in read and write modes.
2 communication interfaces are possible (RS 485 and TCP)
4.10 Link with a CIAT chiller
To establish communication between the water chiller and the drycooler, the following is required:
1) A BUS connection between the water chiller and the drycooler, using the following wiring:
- Terminal block J10 of water chiller to J11 of the drycooler (for drycooler software versions <V09)
- Terminal block J10 of water chiller to J9 of the drycooler (for drycooler software versions ≥V09)
2) Configure the following parameters:
- P116 of water chiller = YES
- A116 of drycooler = YES for software versions < V09
- On software versions ≥V09, drycooler parameter A116 is no longer visible, it automatically changes to YES upon
connection.
For software versions ≥V09, check that the connection has been established by parameter A316 visible in the reading parameters.
A 3 1 6 T E R M . B L O C K J 9 C O N N .
Y E S
The following information is exchanged between the drycooler or the condenser and the water chiller:
Drycooler case
Chiller to Drycooler Drycooler to Chiller
Chiller on/off Drycooler on/off
Free cooling operation
Fan stage fault
Sensor fault
Air-cooled condenser case
Chiller to Air-cooled condenser Air-cooled condenser to Chiller
Chiller on/off DC or condenser on/off
Setpoint Free cooling operation
Pressure value Fan stage fault
Sensor fault
SOFTWARE VERSION UPGRADE
When upgrading from a software version < V09 to a version ≥ V09, the BUS connection wiring on the drycooler
board must be changed from J10 to J9.

EN
EN - 15 EN7510364-00
5.1 Energy meter (From V07)
The energy meter is installed in the cabinet of the unit. Various values can be viewed on the screen. (3 measured values menu)
- A470 = Voltage
- A471 = Input current
- A472 = Power input
- A473 = Energy consumed
5.2 Relay boards
The boards must be installed in a cabinet.
Motherboard
It has potential-free (dry) contacts for remote displaying the following parameters: unit running, sensor faults and fan stage faults.
ADD3 expansion boards
For a unit with 2 circuits, its potential-free (dry) contacts allow remote displaying of the following parameters: sensor faults, fan
stage faults on circuit no.2.
5.3 Remote control console
Used to view and control the operation of the unit remotely. Maximum distance: 1000 m
Must be installed in the plant room
Console mounting dimensions (mm)
5 - OPTIONS
Navigation in the drycooler board menus via the water chiller board.
The drycooler configuration can be accessed from menu 13 of the water chiller board.
All the drycooler board parameters are accessible in read and write mode.
1 3 - AERO-CONNECT
- Menu 13 displays all the drycooler data on the water chiller console.
- The drycooler parameters are prefixed with the letter "A" to differentiate them from the water chiller parameters.
- If a drycooler and console are connected to a water chiller with P116 set to Yes, no priority is given between the two consoles.
- If menu 13 is displayed for 1 hour with no button activated, the water chiller display is restored.
- Parameter A99 for locking parameters can be switched to No by the water chiller console.
- Parameter A250 is not accessible as the water chiller console lamps are tested using parameter P250.
- The console function to override fan operation is not accessible using the water chiller console.
Note: If the BUS connection is removed or the water chiller is off, a communication fault will appear on the drycooler. To remove
this fault, press and hold the reset and OK buttons for 5 seconds to set parameter A116 to NO.
A 3 1 6 T ERM.B L O C K J 9 C O N N .
N O
When the water chiller restarts, parameter A116 will automatically switch to YES.
235
15335
120
80 28
Ø 10
Ø 5
10
Height = 55

EN7510364-00 EN - 16
1
2
3
J10
J12
B
(
-
)
A
(
+
)
Ph
N
T
J1
0V
UNIT
Local
console
Remote control console (option)
board
Supply
230V 50Hz
B
(
-
)
A(
+
)
off on
1 2 3
J11 W3
J12
1 2 3
J11 W3
J11 borne 1
J11 borne 2
J11 borne 3
J11 borne 1
J11 borne 2
J11 borne 3
J12
UNIT NO 1
Local
console
UNIT
NO. 2
UNIT
NO. (X-1)
Local console
UNIT NO X
RS485 2 wires
Max length
1000m
Controller or PC
output RS485
Position of line termination
resistance switch W3
Position W3 on the last unit
Position W3 on other units
6.1.2 Remote control console
6.1 Connection diagram
6.1.1 CMS link
6 - ELECTRICAL CONNECTIONS
board

EN
EN - 17 EN7510364-00
+
TR1
SP1
PL1
J4J2 J3
J6J8
J5J7
J9J11 J10
W3
J14J12J13
D46 D48D50 D52
12 11 10 987654321
12345678910111213141516
11 10 987654321
12 11 10 987654321 11 10 987654321321321 321
43214321
8642
7531
112345 123
+++
Shared Shared
6.2 Board connections
6.2.1 Motherboard
The structure of the motherboard is illustrated in the diagram below:
1234
123
J9
J12W3
3
2
1
DRYCOOLER
Local console board
BOARD
J10
B (-)
A (+)
Position of line termination
resistance switch W3
OFF ON Position W3 if drycooler is the last
unit in link
Position W3 if drycooler is not the
last unit in link
Water chiller
6.1.3 Link with a CIAT chiller

EN7510364-00 EN - 18
6.2.2 Relay motherboard
To be installed by the customer in its main electrical cabinet
16025
156
203.4
164
Ø 4.5
J2 J3
J1
J14
J15
J4
J12
J13
J6J8
J2 J3
J1
J15
J4
J13
J6J8
J5
J7J11 J9 J5J7J11 J9
C
J10
A
J10
B
J14
J12
CONNECTOR/TERMINALS DESIGNATION DIRECTION OF ACTION
On/Off inputs
J6 terminals 1-3 Fan manual override The fans turn on when the contact closes
J6 terms. 2-3 Automatic operation control The machine stops when the contact opens
J6 terminals 4-6 Setpoint 1/Setpoint 2 selection Setpoint 2 is enabled when the contact is closed.
Analogue Inputs
J7 terminals 1-2 Outdoor temperature sensor
J9 terminals 1-2-3 BUS feed connection to J10 of the water chiller board
J10 terminals 1-2-3 BUS power supply connected by shielded cable to J1 on relay board or J1 on remote control console. (terminal 1
to terminal 1, terminal 2 to terminal 2 and shielding to terminals 3).
J11 terminals 1-2-3 BUS power supply connected by shielded cable to J9 on the CONNECT2 board or J12 on the CONNECT
board or JA11 on the XTRACONNECT board. (terminal 1 to terminal 1, terminal 2 to terminal 2 and shielding to
terminals 3) or customer CMS.
Its potential-free (dry) contacts allow the following information to be viewed remotely:
CONNECTOR/TERMINALS DESIGNATION DIRECTION OF ACTION
J11 terminals 1-2-3 BUS feed connected by shielded cable to the unit's control board. (Terminal 1 to terminal 1, terminal 2 to terminal
2 and shielding to terminals 3).
J4 terminals 1-2-3 Single-phase 230 V power supply. (L - N T)
Terminal 1 Neutral
Terminal 2 Phase
Terminal 3 Earth
J13 terminals 1-2-3 If ADD3 board, terminal J1 connected to ADD3 board (30 cm of cable supplied with the ADD3 board)
J3 terminals 1-2 Unit running
The contacts are closed when the unit is running
without any faults.
J3 terminals 1-3 Sensor fault, coil 1, circuit 1
J3 terminals 4-5 Sensor fault, coil 2, circuit 1
J3 terminals 4-6 Fan fault, stage 1/fan
fault, stage 1, line 1
J3 terminals 4-7 Fan fault, stage 2/fan
fault stage 2, line 1
J3 terminals 4-8 Fan fault, stage 3/fan
fault stage 3, line 1
J3 terminals 9-10 Fan fault, stage 4/fan
fault stage 4, line 1
J3 terminals 11-13 Fan fault, stage 5/fan
fault stage 5, line 1
J3 terminals 14-15 Fan fault, stage 6/fan
fault stage 6, line 1
J3 terminals 14-16 Sensor fault, coil 1, circuit 2