AIR CONNECT 2 control manual

AIR CONNECT 2 control manual
NA 09.41 G
µAIR CONNECT 2
07 - 2016
Control
manual
EN
CONTENTSPAGE
1. GENERAL INFORMATION
2
2. COMPONENTS
3
2.1 On the front: 3
2.2 On the rear:
4
3. MENU TREE
7
4. ACCESS LEVEL (menu 8)
10
5. CONFIGURING THE NUMBER OF UNITS
11
6. CONFIGURING THE UNIT.
12
6.1 Unit parameters 12
6.2 Humidifier parameters (visible if P10=2)
18
6.3 Supply air fan parameters (visible if P05=1 or 2 or 3)
20
7. FAULT LEVEL (menu 6)
21
8. WEEKLY PROGRAMMING (menu 5)
22
8.1 Ventilation on sub-menu 5.1
22
8.2 Shifting the temperature setpoints (sub-menu 5.2)
22
8.3 Using the weekly programming
22
9. CONTROL
22
10. SENSORS
23
11. COMMISSIONING
24
12. CHANGING THE CONTROLLER PROGRAM VERSION
26
13. BUS FOR MASTER/SLAVE FUNCTION
27
13.1 Bus connection
27
13.2 Addressing procedure for the units
27
14. BUS FOR CONNECTION TO AN RS485 MODBUS CMS
28
14.1 Bus connection between the units and the CMS.
28
14.2 Configuring the communication bus parameters (menu 7)
29
14.3 MODBUS PROTOCOL
29
15. BUS FOR CONNECTION TO A CMS (LON)
31
15.1 Bus connection between the controllers, gateway and the CMS
32
15.2 Configuration of the connectors linked to the LON gateway.
33
15.3 List of parameters
34
Original text: English Version
EN - 1
NA 09.41 G
1. GENERAL INFORMATION
The µAIR CONNECT 2 controller is equipment fitted as standard to CIATRONIC systems. Setting and display console
equipped with a 160-character LCD screen. The µAIR CONNECT 2 controller is equipped with a microprocessor and an
expansion board to provide the following functions:
● Filtration
Checking the pressure drop in the filters, by monitoring the air flow and fouling level.
● Control function (Cooling Mode)
- Chilled water model:
Gradual opening of the three-way valve following an increase in temperature.
- Direct expansion model:
Triggering of one or more refrigerating stages following an increase in temperature. (Action on the compressors or on the
condensation unit).
● Control function (Heating Mode)
- Hot water coil model:
Gradual opening of the three-way valve following a decrease in temperature.
- Electric heater model:
Triggering of one or two stages following a decrease in temperature.
● Control function (Dehumidification Mode)
- Opening of a chilled water valve or triggering of refrigerating stages, following an increase in humidity.
- Triggering of heating mode if there is a drift in temperature.
- As an option, decrease in the air flow to increase the latent part of the cooling capacity.
● Control function (Humidification Mode)
- Triggering of humidification following a decrease in humidity.
● Fan control
- Management of operation and faults for a 1-speed fan or variable speed control fan.
- Fan on/off via an outer contact, internal timer.
- Variable speed control via temperature regulation or dehumidification.
- Time-limited fan delay for an electric heater.
- Interlock the controls and controllers to operation of the fan.
- Shift in start-up, if there are several units at the same site.
- Soft start of the ventilation if there is a variable air volume.
● Safety and alarms
-
Overheating thermostat (Manual reset) on the electric heater.
Pressure sensor for checking the air flow and filter fouling (Thresholds interlocked to the variation in the air flow).
High pressure switch with manual reset on the refrigerating circuit.
Configurable alarm threshold for high and low temperature.
Configurable alarm threshold for high and low humidity.
Low supply air temperature limitation sensor (limitation of the cooling capacity).
Water leak sensor.
● Configurable potential-free (dry) contacts made available for:
- Critical fault summary: air flow, fan, compressors, clogged filter, temperature sensor.
- Non-critical fault summary: filter fouled, electric heater, humidifier, water leak, target temperatures exceeded, target relative
humidity exceeded.
● Memorisation
-S
torage of the last 20 faults with the date and time of each fault, plus the readings of all the analogue input values at the time of
the fault.
- Parameter setting storage in the event of a power failure.
● Remote control
- Option of remote control.
● Metering
- Option to display metering for:
-The number of operating hours for the fans, compressors, electric heater stages, the humidifier, the fault summaries sent with
individual reset of each meter.
- The number of the compressor start-ups.
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EN - 2
2. COMPONENTS
THE µAIR CONNECT 2 CONTROLLER COMPRISES:
2.1 On the front:
- A human-machine interface used to carry out adjustments, and signal and display the various states and information
The display appears on a backlit LCD (4 lines x 40 characters).
DESCRIPTION OF THE FRONT PANEL:
1 - Starting up (green LED)
2 - "Power on" indicator (yellow LED)
3 - Fault signal indicator (red LED)
4 - Reset
5 - Cursor pad
6 - Number pad
7 - Validation
8 - Correction
9 - Setpoints values
10 - 160-character LCD screen
1
2
3
EN
4
10
6
5
7
8
9
The dialogue between the machines and the user is provided by simple, precise text messages on a 160-character LCD screen.
The µAIR CONNECT 2.1 automatically displays information on the operation of the unit.
(ExampleAppearance of a fault).
It comprises:
- A backlit crystal screen with 4 lines of 40 characters.
- A forced off or on authorisation push button, equipped with LED indication (green LED).
- Green LED off → unit off.
- Green LED flashing → remote control open.
- Green LED permanently on → unit on
- A voltage on indicator (yellow LED).
- A fault signal indicator (red LED).
- A "RESET" push button for resetting the faults.
- An "ENTER" push button to confirm (modification of a value).
-A
push button to delete the last digit displayed when modifying values.
to quickly modify the setpoints for the unit being queried "heating, cooling, humidification, dehumidification"
- A push button
or to quickly modify the trigger setpoint for the extra unit.
- A cursor pad.
- A number pad.
The user can configure or query the machines at any time via a tree menu, the first window for which comprises the following
sections
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Note: The text that follows the unit number indicates its operating status.
The first line is simply a display of the date and time. We can access this main menu via the "0" number key from any of the
displays.
Move the cursor opposite the line corresponding to the required information using the cursor pad, then hit "ENTER".
The "CONFIGURATION OF NUMBER OF UNITS"’ line is used to configure the operation of the units connected to the bus.
The "UNIT…" lines are used to query the machine.
To return to the main menu, press the number key "0" several times.
● Locking the keypad
The control can be locked or unlocked by pressing the “right arrow” and “left arrow” keys simultaneously for 5 seconds.
When the controller is locked, the user can view the information but cannot edit the settings.
2.2 On the rear:
The various connectors used to connect the various elements required to control the unit.
● INPUTS
On/off:
• Acquisition of states via the traditional electro-mechanical components.
Analogue:
• Acquisition of temperatures via a thermistor type sensor.
• Acquisition of relative humidities via sensors delivering a voltage varying from 0 to 10 V for relative humidity of 0 to 100%.
• Acquisition of differential pressures in the air via sensors delivering a voltage varying from 0 to 10 V or from 0.5 to 4.5 V for 0 to
1000 Pa.
● OUTPUTS
On/off:
• Fan control.
• Electric heater and compressor stage control.
• Critical and non-critical fault summary changeover contacts.
Analogue:
• Control of the three-way valves for the water coils and the electric heater current valve.
• Control of the progressive humidifier.
• Control of the fan speed controller.
LOCATION OF TERMINALS (main board)
Communication
LED
LED de communication
24V~
1
2
J8
J14
ON
1
2
3
1
2
1
2
3
4
5
6
1
2
3
J9
3
4
J10
5
6
7 8
COM1
J15
2
3
4
J5
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5
6
7
5
6
7
5
6
7
J1
9
1
2
3
J4
1
4
ON
COM2
2
OFF
3
OFF
1
3
5
4
J2
6
1
2
3
4
5
6
1
J6
2
3
4
J7
EN - 4
5
6
1
2
3
4
J3
● Designation of terminals
EA = Analogue inputs
EL = Logic inputs
SA = Analogue outputs
SL = Logic outputs
TERMINAL
µAirConnect
µAirConnect2.1
1
J1
(EA)
J2
(EL)
2
0V
3
Supply air limit temperature sensor (10 K Ω)
4
Target relative humidity sensor (0 - 10 V)
0V
6
Sensor for controlling the differential pressure on the filter (0-10 V or 0.5 - 4.5 V)
7
+12 V
1
Remote control
2
Fire detection/External safety
3
Supply air fan operation feedback
4
Electric heater safety thermostat with manual reset
5
Humidifier fault or maintenance
6
Water leak
7
Logic input common terminal
Circuit 1 LP pressure switch fault or summary of faults
for condensation unit, circuit 1
Summary of condensation unit 1 faults
2
HP pressure switch or break in circuit 1
Temperature setpoint shift
3
Circuit 2 LP pressure switch fault or summary of faults
for condensation unit, circuit 2
Summary of condensation unit 2 faults
4
HP pressure switch or break in circuit 2
Hot water coil or electric heater
5
6
Starting order selection: CW/DX or DX/CW
Not used
Summer or winter mode
7
1
J4
(SA)
Logic input common terminal
Heating coil three-way valve
0V
3
Chilled water coil 3-way valve.
4
Progressive humidifier
5
0V
6
Variation of the air flow rate
Not used
Free cooling damper
8
9
Hot water coil 3-way valve
2
7
J5
(SL)
EN
5
1
J3
(EL)
Target temperature sensor (10 K Ω)
0V
Not used
Electric heater (TRIAC)
1
Critical fault summary common terminal
2
Contact rest if P206=0 (or work if P206=1) of the synthesis of the important defects
3
Contact work if P206=0 (or rest if P206=1) of the synthesis of the important defects
4
Non-critical fault summary common terminal
5
Contact rest if P205=0 (or work if P205=1) of the synthesis of the simple defects
6
Contact work if P205=0 (or rest if P205=1) of the synthesis of the simple defects
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TERMINAL
µAirConnect2
1
2
J6
(SL)
5
J7
(SL)
J8
J9
J10
J14
Control of circuit 1 or condensation unit 1 refrigerating stage No. 1
Control of circuit 1 refrigerating stage No. 2 or hot gas bypass
valve stage 1
3
4
µAirConnect2.1
Refrigerating stage no. 1 common terminal
Control of circuit 1 or condensation unit 2 refrigerating stage No. 2
Control of circuit 2 refrigerating stage No. 2 or hot gas bypass
valve stage 2
Refrigerating stage no. 2 common terminal
1
Control of electric heater stage 1
2
Control of electric heater stage 2
3
Electric heater control common terminal
4
Supply air fan control
5
Not used
6
Fan control common terminal
1
24 V AC power supply
2
24 V AC power supply
3
0V
1
RS485 A or + (Link between controllers for master/slave function)
2
RS485 B or - (Link between controllers for master/slave function)
3
0V
1
RS485 A or + (Link with CMS or gateway)
2
RS485 B or - (Link with CMS or gateway)
3
0V
1
+ 12 V
2
RS485 A or + (Link with CPY humidifier and/or FMA)
3
RS485 B or - (Link with CPY humidifier and/or FMA)
4
0V
0V
2
Not used
Outdoor temperature sensor (10 K Ω)
3
Not used
Outdoor relative humidity sensor (0- 10 V)
4
Not used
Raised floor differential pressure monitoring sensor (0- 10 V)
5
Not used
Not used
6
5V
COM SWITCH
- COM 1: Line termination resistance on CMS link (see section 14)
- COM 2: BUS polarisation on master/slave link (see section 13)
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Not used
6
1
J15
(SA)
Not used
EN - 6
3. MENU TREE
Depending on the configuration, only the menus in use are displayed.
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N OF NUMBER OF UNITS
UTOMATIC MODE
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With the cursor opposite the "CONFIGURATION OF NUMBER OF UNITS" line, press the Enter key to access the following
menus:
Configuration of number of units
1.1 Operating
configuration
ENTER
ENTER
C01
C09
1.2 Settings
parameters
ENTER
C11
C19
1.3 Reading
parameters
ENTER
Master/slave
configuration
C21
C29
Back to menu
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N OF NUMBER OF UNITS
UTOMATIC MODE
PED
With the cursor opposite the "UNIT 1" line, press the Enter key to access the following menus:
EN - 7
NA 09.41 G
EN
Unit 1
ENTER
1 Operating info
With no fault, the temperature, humidity, setpoints
and unit state are displayed
ENTER
With a fault, the type of fault is displayed along
with its solution (reset button to cancel after
resolution)
Back to menu
2 Fault memory
ENTER
Back to menu
3 Parameters
0
List of the last 20 timestamped faults. To view the
state of the machine at the time of the fault, select the
fault with the cursors and hit ENTER
0
3.1 Unit
type
ENTER
P01
P99
3.2 Control and
settings
P100
P249
3.3 Reading
parameters
Machine
configuration
P250
P599
Back to menu
4 Help
0
4.1
Troubleshooting
help
ENTER
4.2 Console
help
4.3 Maintenance
Back to menu
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EN - 8
0
Help information
5 Timer programming
ENTER
Back to menu
6 Fault level
5.1 Ventilation on
20 programming steps to
switch the fan on
5.2 Setpoint shift
20 timer programming steps to
shift setpoint
0
N01
ENTER
N19
Back to menu
7 Communication
0
P700
ENTER
P706
Back to menu
8 Access level
Selection for forwarding faults to the
critical or non-critical fault relays
Communication configuration
0
ENTER
8.1 Level 1 access
8.2 Level 2 access
To change the access level
8.3 Level 3 access
Back to menu
9 Humidifier
0
ENTER
9.1 Settings
P900
P912
9.2 Reading parameters
P950
Humidifier
configuration
P958
9.3 Alarms
Back to menu
0
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EN
10 Supply air
fan(s)
ENTER
10.1 FMA1
information
P1000
P1049
10.1 FMA2
information
P1050
P1099
10.1 FMA3
information
Supply air fan
information
P1100
P1149
Back to menu
Back to menu
0
0
4. ACCESS LEVEL (menu 8)
The µAIR CONNECT 2 control has 3 access levels, two of which require an access code. The various levels are accessed using
menu 8 in the unit's menu.
Access to level 1 (No access code)
● This is a general level designed for the end user. This level gives access to all the reading parameters and the settings for the
main setpoints and proportional bands:
• Cooling
• Heating
• Humidification
• Dehumidification
• Supply air temperature limits
• Temperature and humidity limit thresholds
• Filter check.
It also allows the language, date and time to be altered.
● Access to level 2 (editable numeric code)
This level is designed for installers and experienced users. It gives access to the following functionalities
• Free cooling
• On/off control and configuration lock
• Fixed shifts during heating/cooling
• Limits relating to the supply air fan speed variation
• Time delay settings
• CMS communication parameter settings
● Access to level 3 (uneditable numeric code)
This level is designed for the manufacturer's operators and for factory settings. It gives access to all parameters of the control.
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5. CONFIGURING THE NUMBER OF UNITS
These parameters are only visible if parameter P215 = 1 (master unit)
This sub-menu groups together the operating parameters for the units. They can operate individually or grouped as master/slaves.
Access level
No.
Description
Setting
By
default
Display condition
OPERATING CONFIGURATION
2
C01
Number of units
1 to 32: self-contained units
2 to 10: in master/slave
1
2
C02
Additional unit
0: No additional unit
1: One additional unit
0
C01 > 1 and C01 < 11
2
C03
Backup unit
0: No backup unit
1: One backup unit
0
C01 > 1 and C01 < 11 and
C02 = 0
2
C04
Additional backup unit
0: No additional backup unit
1: One additional backup unit
0
C01 > 2 and C01 < 11 and
C02 = 1
Rotation
0: No rotation
(the last unit is the backup unit).
1: Automatic rotation
(according to the time delay adjustable using
C12).
0
C02 = 1 or C03 = 1
2
C05
0: French
2
C08
Language used
1: English
2: German
0
3: Spanish
2
C09
Locking of the configuration
0: Unlocked (the adjusted master/slave functions
are not activated)
1: Locked (the adjusted master/slave functions
are activated).
0
SETTING
15 to 40°C
(but always 2 K greater than the highest of the
P103 cooling setpoints for the units currently
operating)
27°C
C02 = 1
168 h
C05 = 1
2
C11
Setpoint for activating the additional
unit (authorisation setpoint)
2
C12
Unit rotation time delay
Value adjustable from 0 to 240 h (value '0' is
used for testing and corresponds to a period of
5 minutes)
C05 = 1
C02 = 1
READ-ONLY
1
C21
Unit rotation counter
Note: This counter counts down in increments
and when it reaches 0, it is reset to the value
for C12 and the unit whose number precedes
the stopped unit or units stops in turn. The
unit whose number precedes those currently
operating starts.
1
C22
Additional unit setpoint
(calculated setpoint)
Note: This gives the actual value of the
setpoint, i.e. at least 2 K above the highest
cooling setpoint for all units
1
C29
Software version number
TREE FOR CONFIGURING THE NUMBER OF UNITS
(only visible if parameter P215 = 1 "master unit")
EN - 11
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C01
Number of units
C02
No additional
C03
No backup
Backup
Additional
C04
The additional unit
acts as backup
One additional backup unit
One backup unit
French
C08
English
German
C05
Spanish
No rotation
Automatic rotation
C09
Unlocked
Trigger setpoint
Locked
Rotation time delay
6. CONFIGURING THE UNIT.
6.1 Unit parameters
6.1.1 UNIT TYPE (sub-menu 3.1)
To limit the amount of different software required whilst meeting our customers' need for applications, µAir connect 2 is provided
with a configuration system. It allows the composition of the unit to be configured, along with all the functions which must be
managed by the system
To configure the µAIR CONNECT 2, use the menu No.3: PARAMETER and the sub-menu No. 3.1: UNIT TYPE. (Menu on the
µAIR CONNECT 2 display)
These parameters are directly linked to the composition of the unit, and they must not be modified on site.
The procedure for saving these parameters is carried out in the workshop. (To view the type of programming specific to your
control, refer to the configuration guide attached to the unit).
To modify parameters P01 to P99, the unit must be stopped and the configuration unlocked. Parameter P99 (Locking of
configuration) is equipped with a system which counts the number of times the configuration is unlocked.
Most of the parameters can only be modified if the correct authorisation level is accessed in Menu No.8 of the µAIR CONNECT 2
(See paragraph 4 in this guide).
NA 09.41 G
EN - 12
Access
level
No.
Description
Setting
By
default
Display
condition
CONFIGURATION OF THE FANS
2
1
On control
1: Outer contact (the push button on the console acts as a forced stop)
2: Internal timer (the push button on the console acts as priority forced stop and the
outer contact as forced start)
1
1: One speed
P05 = 0
10: V
ariation of the rotation speed with increase of the speed via an increase in cooling
control.
11: Variation
of the rotation speed with increase of the speed
via an increase in heating control.
3
2
Number of speeds
or variation of air
flow rate
12: Variation of the rotation speed via cooling and heating control.
13: Variation of the rotation speed with decrease of the speed via an increase in
dehumidification control.
P03 = 2 and P07 > 0
P03 = 2 and P08 > 0
14
P03 = 2 P07 > 0 and
P08 > 0
P03 = 2 P09 > 0
14: Manual variation of the fan rotation speed.
15: Variation of the rotation speed with pressure increase on the raised floor.
3
3
Machine model
3
4
Controller type
3
5
FMA control
16: Variation of the rotation speed depending on the temperature difference (return/
supply air)
1: EXPAIR configuration
2: MAGISTER configuration
0 = µAir connect 2
1 = µAir connect 2.1
0: On/off or gradual 0-10 V
1: 1 MODBUS gradual FMA
2: 2 MODBUS gradual FMAs
3: 3 MODBUS gradual FMAs
P04 = 1
P04 = 1
1
1
0
P04 = 1
CONTROL SELECTION
3
6
Limitation via
the supply air
temperature
0: No limitation
1: With limitation
(Low limit affecting cooling control, high limit affecting heating control)
0
P11 ≠ 0
0: No cooling control
3
7
Cooling control
1: One chilled water coil
0
2: One direct expansion system
3: One chilled water coil and one direct expansion system
P04 = 0
0: No heating control
3
8
Heating control
1: One hot water coil
0
2: One electric heater
3: Electric heater or hot water coil via contact
P04 = 1
0: No dehumidification control
3
9
Dehumidification
control
1: One chilled water coil
0
2: One direct expansion system
3: One chilled water coil and one direct expansion system
3
10
Humidification
control
0: No humidification control
1: Progressive control
2: Progressive MODBUS
3
11
Free cooling control
0 = Without
1 = With
3
16
Electric heater
control
CONFIGURATION OF THE EXCHANGERS
1: One on/off output (one stage)
2: Two on/off outputs (three stages)
3: One progressive stage
4: One progressive stage and one on/off stage
P04 = 0
0
0
P04 = 1
P07 > 0
1
P08 = 2 or 3
1: One stage (one compressor)
2: Two stages (one compressor + hot gas)
3
17
Direct expansion
system control
3: Two stages (two compressors in two circuits)
4: Four stages (two compressors + two hot gas units in two circuits)
5: C
ontrol of a staged condensation unit, with external management of automatic
systems and unit faults.
1 if P04 = 0
5 if P04 = 1
P07 = 2 to 4
or P09 = 2 to 4
6: Control of two condensation units with 1 stage, with external management of
automatic systems and unit faults.
3
18
3
19
P04 = 0 and (P07
= 2 to 4 or P09 =
2 to 4)
Humidifier type
1: KUESFR 3 kg/h 230 V
2: KUET1 3 kg/h 400 V
3: KUET2 8 kg 400 V
4: KUET3 15 kg/h 400 V
1
P10 = 2
Type of water coil
1: One mixed coil
(cooling/heating operation via contact)
2: Two self-contained coils
(one cooling coil, one heating coil)
2
P04 = 1 and P07 = 1
and P08 = 1 and
P09 = 0
EN - 13
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EN
MODE SELECTION
2
31
Cooling setpoint offset
0: No control
1: Set offset shifted up by outer contact
2: Set offset shifted up by internal timer
0
P07 > 0
2
32
Heating setpoint offset
0: No shift
1: Set offset shifted down by outer contact
2: Set offset shifted down by internal timer
0
P08 > 0
33
CW/DX or DX/CW
selection
0: Via parameter (P34)
1: CW/DX or DX/CW selection via contact. Chilled water then direct
expansion: contact open*. Direct expansion then chilled water: contact
closed*
2: CW or DX selection via parameter*
3: CW or DX selection via contact*
0
P04 = 0
and P07 or P09 = 3
3
34
Cooling coil start-up
order
3
35
Differential pressure
measurement
0: Via 0-10 V pressure sensor
1: Via 0.5 - 4.5 V pressure sensor
0
3
36
HP/LP pressure
measurement
0: Via on/off sensors
0
P17 = at 4
3
37
Controlled temperature
sensor type
0: CIAT sensor
1: CAREL sensor
0
P07>0 or P08>0
3
0: Chilled water then direct expansion
1: Direct expansion then chilled water:
0
2: Chilled water only
3: Direct expansion only
P04 = 0 and P33 = 0 and (P07
or P09 = 3)
P04 = 0 and P33 = 3 and (p07
or P09 = 3)
FMA DIALOGUE CONFIGURATION
3
71
FMA1 configuration (*)
0: Not completed
1: Completed
0
P05 = 1 or 2 or 3
3
72
FMA2 configuration (*)
0: Not completed
1: Completed
0
P05 = 2 or 3
3
73
FMA3 configuration (*)
0: Not completed
1: Completed
0
P05 = 3
Locking of the
configuration
0: Configuration unlocked
(The unit cannot be started up; the unit type parameters may be changed).
1: Configuration locked
(The unit can be started up by pressing the "On/Off" push button on
the console. The unit type parameters may no longer be modified. The
number of times the configuration is unlocked is counted.)
LOCKING
2
99
0
(*) When these parameters are modified, a sequence is launched to configure the FMAs.
6.1.2 CONTROL AND SETTINGS (sub-menu 3.2)
Access
level
No.
Description
Setting
1
100
Language used
0: French
1: English
2: German
3: Spanish
1
101
Date
Day/Month/Year
1
102
Time
Hours/Minutes
By default
Display condition
0
COOLING CONTROL
1
103
Temperature setpoint in cooling mode
8.0 to 35.0°C if P08 = 0
MAX (15, P106) to 35°C if P08 > 0
1
104
Temperature proportional band
in cooling mode
1.0 to 10.0 K
1
105
Temperature integral time
in cooling mode
0 min 0 s to 30 min 0 s (0 to 1800 s)
25.0°C
P07 > 0
2.0 K
P07 > 0
0 min 0 s
P07 > 0
20.0°C
P08 > 0
2.0 K
P08 > 0
0 min 0 s
P08 > 0
HEATING CONTROL
1
106
Temperature setpoint in heating
mode
10.0 to 35.0°C
10.0 to MIN (35.0, P103)°C
1
107
Temperature proportional band
in heating mode
1.0 to 10.0 K
1
108
Integral time
Temperature in heating mode
0 min 0 s to 30 min 0 s (0 to 1800 s)
NA 09.41 G
EN - 14
DEHUMIDIFICATION CONTROL
1
109
Humidity setpoint during
dehumidification
30 to 90% if P10 = 0
MAX (30, P115) to 90% if P10 > 0
60%
P09 > 0
1
110
Humidity proportional band in
dehumidification mode
5 to 30%
10%
P09 > 0
1
111
Humidity integral time in
dehumidification mode
0 min 0 s to 30 min 0 s (0 to 1800 s)
0 min 0 s
P09 > 0
1
115
Humidity setpoint during
humidification
20 to 90% if P09 = 0
MAX (20, P109) to 90% if P09 > 0
40%
P10 > 0
1
116
Humidity proportional band in
humidification mode
5 to 30%
10%
P10 > 0
1
117
Humidity integral time in
humidification mode
0 min 0 s to 30 min 0 s (0 to 1800 s)
0 min 0 s
P10 > 0
1
121
Downward shift of the temperature
limit
0.0 to 10.0 K
2K
P06 = 0 and P09 > 0
1
122
Proportional band for reduction of the
cooling demand
1.0 to 10 K
2K
P06 = 0 and P09 > 0
2
125
Free cooling activation differential
3 to 20 K
3K
P11 = 1
2
126
Free cooling activation low limit
setpoint
-5 to 20°C
0°C
P11 = 1
2
128
Free cooling opening limit
0 to 100%
100 %
P11 = 1
2
129
External weight in water low limit
setpoint
0 to 15 g
4g
P11 = 1
2
130
External weight in water high limit
setpoint
8 to 18 g
12 g
p11 = 1
HUMIDIFICATION CONTROL
EN
RETURN TEMPERATURE LIMITATION
FREE COOLING CONTROL
LIMITATION OF THE SUPPLY AIR TEMPERATURE
1
140
Low limit setpoint
5 to 20 K
14°C
P06 = 1 and (P07 > 0 or
P09 > 0)
1
141
Proportional band for the low limit
1 to 20 K
4K
P06 = 1 and (P07 > 0 or
P09 > 0)
1
142
High limit setpoint
30 at 60°C
1
143
Proportional band for the high limit
1 to 20 K
50°C
P06 = 1 and P08 > 0
4K
P06 = 1 and P08 > 0
TEMPERATURE SETPOINT SHIFT
2
144
Cooling setpoint offset
0 to 30 K
5K
P31 > 0
2
145
Heating setpoint offset
0 to 20 K
5K
P32 > 0
2
150
Discharge pressure setpoint
20 to 250 Pa
100 Pa
P2 = 15
2
151
Discharge pressure proportional band
20 to 1000 Pa
50 Pa
P2 = 15
2
152
Discharge pressure integral time
0 min 0 s to 30 min 0 s (0 to 1800 s)
3 min 0 s
P2 = 15
2
153
Discharge pressure derivative time
0 min 0 s to 30 min 0 s (0 to 1800 s)
3 min 0 s
P2 = 15
FLOOR PRESSURE
LIMITATION OF THE FAN ROTATION VARIABLE SPEED CONTROL
2
155
Percentage of the rotation speed
P156 to P157
2
156
Minimum percentage of the rotation
speed
0 to 90% if P08 = 0 and P10 = 0
50 to 90 % if P08 > 1 or P10 > 0
2
157
Maximum percentage of the rotation
speed
2
158
Percentage of proportional bands
reserved for controlling just the valves
(P156+P157)/2
60%
P02 > 9
P156 to 100%
100 %
P02 > 9
0 to 100%
50 %
P02 = 10 to 13
EN - 15
NA 09.41 G
RETURN/SUPPLY AIR TEMPERATURE CONTROL
2
159
Return/supply air temperature
differential setpoint
2
160
Return/supply air temperature
proportional band
5.0 to 20.0°C
10.0°C
P2 = 16
1.0 to 10.0°C
2.0°C
P2 = 16
CHECK THE FILTERS
The values correspond to the unit's maximum air flow.
If there is a variation in the fan speed, these values are reduced proportionally
1
161
Setpoint for differential pressure
indicating air flow present
10 to 80 Pa
30 Pa
1
162
Setpoint for differential pressure
indicating filter fouling
60 to 500 Pa
150 Pa
1
163
Setpoint for differential pressure
indicating filter blocked
100 to 550 Pa
190 Pa
1
P17 = 1 to 16
1
P17 = 3.4 or 6
COMPRESSOR VALIDATION
3
181
Validation of compressor circuit 1
0: compressor stopped
1: compressor authorised
3
182
Validation of compressor circuit 2
0: compressor stopped
1: compressor authorised
2
185
Warm-up at fan start-up (validation of
detection of T° and RH exceeded)
5 to 180 min
30 min
2
186
Application of control at fan start-up
10 to 180 s
30 s
2
188
Fault taken into account when
temperature or relative humidity
exceeded.
1 to 5 min
2 min
2
190
Post-ventilation of electric heater
1 to 300 min
10 min
2
191
Delayed fan control after operation
request.
0 to 480 s
0s
2
192
Duration of fan soft start incline
0 to 500 s
30 s
P02 > 9
2
193
Rotation time delay for refrigerating
circuits
0 to 240 h
240 h
P17 = 3, 4 or 6
TIME DELAY
P08 = 2 or 3
CHECKING WHETHER TEMPERATURE THRESHOLDS ARE EXCEEDED
1
200
Temperature upper limit threshold
30 to 75°C if P07 = 0
(P103 + P104) to 75°C if P07 > 0
40°C
P07 or P08 > 0
1
201
Temperature low limit threshold
30 to 75°C if P08 = 0
5°C to (P106 - P107) if P08 > 0
10°C
P07 or P08 > 0
CHECKING WHETHER HUMIDITY THRESHOLDS ARE EXCEEDED
1
202
Humidity upper limit threshold
40 to 100% RH if P09 = 0
(P109 + P110) to 100% RH if P09 > 0
80% RH
P09 or P10 > 0
1
203
Humidity low limit threshold
10 to 40% RH if P10 = 0
10% RH to (P115 - 116) of P10 > 0
20% RH
P09 or P10 > 0
Test mode
0: no
1: yes
TEST MODE
3
204
0
P17 > 0
RELAY DEFECT
1
205
Non crit fault relay dir of action
0 : Standard active/standby contact
1 : Inverted active/standby contact
1
1
206
Crit fault relay direct of action
0 : Standard active/standby contact
1 : Inverted active/standby contact
1
MASTER/SLAVE BUS
2
215
Unit number on console
1 to 32
1
6.1.3 Reading parameters (sub-menu 3.3)
This third sub-menu gives access to all the values (temperatures, relative humidities, pressures, time delays, meters, input and
output states, etc.) managed by the µAir connect 2.. Only the useful parameters are displayed. They cannot be modified
The meters can be reset to zero. To do this, place the cursor on the chosen meter and simultaneously press the Reset and 0 keys
for 5 to 6 seconds.
All these parameters are accessible from the "customer" access level.
NA 09.41 G
EN - 16
Access
level
No.
1
250
Cooling setpoint value
1
251
1
252
1
1
1
Description
Unit
Display condition
CALCULATED SETPOINT
°C
P07 > 0
Temperature setpoint value in heating mode
°C
P08 > 0
Air flow activation threshold value
Pa
253
Filter fouling activation threshold value
Pa
254
Filter clogging activation threshold value
Pa
255
Target temperature
EN
MEASURED VALUE
°C
P07 > 0 or P08 > 0
P09 > 0 or P10 > 0
1
256
Target relative humidity
%
1
257
Filter differential pressure
Pa
1
258
Outdoor temperature
°C
P11 = 1
1
259
Supply air temperature
°C
P06 = 1
1
265
Outdoor humidity
%
P03 = 2 and (P09 > 0 or P10 > 0)
and P11 = 1
1
266
Raised floor differential pressure
Pa
1
268
External weight in water
g/Kg
P2 = 16
P3 = 2 and (P09 or P10 > 0)
and P11 = 1
LOGIC INPUT STATE (ON/OFF)
1
270
Electric heater safety thermostat with manual reset
default = off
1
271
Summary of condensation unit 1 faults
default = on
P17 > 5
1
272
Summary of condensation unit 2 faults
default = on
P17 > 6
1
273
Low pressure fault 1
default = on
P17 = 1 to 4 and P36 = 0
1
274
High pressure or circuit break fault 1
default = off
P17 = 1 to 4
1
275
Low pressure fault 2
default = on
P17 = 3 to 4 and P36 = 0
1
276
High pressure or circuit break fault 2
default = off
P17 = 3 or 4
1
277
CW/DX, DX/CW, CW or DX selection
CW/DX or CW = off
1
278
External safety contact
1
279
On request contact
1
281
Humidifier maintenance, fault or operation feedback
1
282
Fan operation feedback
1
284
Water leak contact
1
287
Hot water coil or electric heater selection contact
1
288
Summer or winter mode contact
P07 or P09 > 2
PERCENTAGE FOR ANALOGUE OUTPUTS
1
290
Opening of the heating coil three-way valve or electric heater percentage
Opening of the heating coil three-way valve
%
P04 = 0 and (P08 = 1 or (P08 = 2
and (P16 = 3 or P16 = 4))
P04 = 1 and (P08 = 1 or P08 = 3)
1
291
Opening of the cooling coil three-way valve
%
(P07 = 1 or 3) or (P09 = 1 or 3)
1
294
Progressive humidifier percentage
%
P10 = 1
1
295
Fan rotation speed
%
P02 > 9
1
296
Fresh air percentage
%
P11 = 1
1
297
Electric heater percentage
%
P04 = 1 and ((P08 = 2 or P08 =
3) and
(P16 = 3 or P16 = 4))
1
300
Condensation unit 1 or circuit 1 compressor 1
1
301
Short-cycle protection time countdown for compressor 1
1
302
Number of start-ups for condensation unit 1 or circuit 1 compressor 1
1
303
Condensation unit 1 or circuit 1 compressor 1 operating-hour meter
1
304
Condensation unit 2 or circuit 2 compressor 1
STATE OF THE COMPRESSOR CONTROLS
Off/On
mins
P17 > 0
P17 > 0
h
Off/On
EN - 17
P17 > 0
P17 > 0
P17 = 3.4 or 6
NA 09.41 G
1
305
Short-cycle protection time countdown for condensation unit 2 or circuit 2
compressor 1
1
306
Number of starts for condensation unit 2 or circuit 2 compressor 1
1
307
Condensation unit 2 or circuit 2 compressor 1 operating-hour meter
1
315
State of the hot gas bypass valve for circuit 1
1
316
Operating-hour meter for opening of the hot gas bypass valve for circuit 1
1
315
State of the hot gas bypass valve for circuit 2
1
316
Operating-hour meter for opening of the hot gas bypass valve for circuit 2
mins
P17 > 0
P17 > 0
h
P17 > 0
STATE OF THE HOT GAS BYPASS CONTROLS
Off/On
P17 = 2 or 4
h
P17 = 2 or 4
Off/On
P17 = 4
h
P17 = 4
STATE OF THE ELECTRIC HEATER CONTROLS
1
320
Electric heater stage 1
1
321
Operating-hour meter for electric heater stage 1.
1
322
Electric heater stage 2
1
323
Operating-hour meter for electric heater stage 2.
1
330
Fan control state
1
331
Fan operating-hour meter
Off/On
P16 = 2
h
P16 = 2
Off/On
P16 = 2 or 4
h
P16 = 2 or 4
STATE OF THE FAN CONTROLS
Off/On
h
STATE OF THE FAULT SUMMARY CONTROLS
1
350
Indication of the critical faults
1
351
Operating-hour meter indicating the critical faults
Off/On
1
352
Indication of the non-critical faults
1
353
Operating-hour meter indicating the non-critical faults
h
Off/On
h
STATE OF THE FAN CONTROLS
1
360
Fan on request
Off/On
P01 = 2
1
361
Temperature setpoint shift request
Off/On
P31 = 2 or P32 = 2
1
362
Warm-up
1
363
Activation time delay for the compressor stages
TIME DELAY COUNTDOWN
mins
mins
P17 = 3 or 4
VERSION NUMBER
1
365
µAir Connect 2.1 software version number
ORDER NUMBER
1
570
SO order number
1
571
OF number
6.2 Humidifier parameters (visible if P10=2)
6.2.1 Settings (sub-menu 9.1)
Access
level
No.
3
900
Maximum production
20 to 100%
100 %
P10 = 2
3
901
Off delay time
0 s to 120 s
0s
P10 = 2
3
902
Water conductivity
(0 = automatic measurement > 0 =
forced conductivity)
0 to 125 µS/cm
0 µS/cm
P10 = 2
3
903
Conductivity pre-alarm threshold
0 to 2000 µS/cm
1500 µS/cm
P10 = 2
3
904
Conductivity alarm threshold
0 to 2000 µS/cm
2000 µS/cm
P10 = 2
3
905
Foam detection threshold control
(0 = foam detection excluded
1 = max. foam detection sensitivity;
100 = min. foam detection sensitivity)
0 to 100%
50 %
P10 = 2
3
906
Internal conductivity control of the
cylinder on warm-up as compared
to the nominal (less than 100%:
conductivity increases)
50 to 200%
100 %
P10 = 2
NA 09.41 G
Description
Setting
EN - 18
By default
Display condition
Access
level
No.
3
907
Control of the duration of release for
dilution
50 to 200%
100 %
P10 = 2
3
908
Cylinder maintenance limit time (0 =
"CY" cylinder life and maintenance
alarm no longer appears as a matter
of course)
0 h to 4000 h
3000 h
P10 = 2
3
909
Limit time between two periodic
releases
1 h to 240 h
24 h
P10 = 2
3
910
Days of inactivity awaiting release
1 to 199 days
3 days
P10 = 2
P10 = 2
P10 = 2
Description
Setting
2
911
Manual drain
0: without
1: with
2
912
Prewashing
0: without
1: with
By default
Display condition
EN
6.2.2 Reading parameters (sub-menu 9.2)
Access
level
No.
1
950
Outdoor request display
1
951
Display of the instantaneous steam flow rate (instantaneous steam)
1
952
Conductivity of supply water
1
953
Current consumed
1
954
Maximum production display
(corresponding to the configured P900 value)
1
955
Nominal steam production
1
956
1
1
Description
Unit
Display condition
%
P10 = 2
kg/h
P10 = 2
µS/cm
P10 = 2
A
P10 = 2
kg/h
P10 = 2
kg/h
P10 = 2
Cylinder hours counter
(can be reset to 0 by pressing the reset+0 keys for 5 secs)
h
P10 = 2
957
Machine hours counter
(cannot be reset to zero; read only)
h
P10 = 2
958
Humidifier state
0: Not activated
1: Evaporation cycle start
2: Charging with water
3: Evaporating
4: AFS drain
5: Water drain (for dilution or manual)
6: Water drain ended
7: Complete drain for extended period of inactivity
8: Network or manually requested complete drain
9: Water shortage management
10: Prewash
11: Periodic drain
P10 = 2
6.2.3 Alarm (sub-menu 9.3)
Alarm
Description
The humidifier has no fault
Mn
Replace the cylinder
EC
Water conductivity too high
E1
Configuration parameter error
E0
Internal memory error
EH
Electrode overcurrent
EP
Low steam flow rate during reduced production
EU
Water level raised without humidification request
EF
Lack of supply water
ED
Drain problem
To acknowledge a humidifier fault, go into the "ALARM" menu (menu 9.3) and press the "Reset" key
EN - 19
NA 09.41 G
6.3 Supply air fan parameters (visible if P05=1 or 2 or 3)
6.3.1 FMA1 information (sub-menu 10.1)
Access
level
No.
1
1000
FMA1 max. speed
rpm
P05 = 1, 2 or 3
1
1001
FMA1 requested speed
rpm
P05 = 1, 2 or 3
1
1002
FMA1 current speed
rpm
P05 = 1, 2 or 3
1
1003
FMA1 current consumed
A
P05 = 1, 2 or 3
Description
Unit
Display condition
1
1004
FMA1 peak supply voltage
V
P05 = 1, 2 or 3
1
1005
FMA1 power input
W
P05 = 1, 2 or 3
1
1010
FMA1 fault summary
Off/On
P05 = 1, 2 or 3
1
1011
FMA1 start-up fault
Off/On
P05 = 1, 2 or 3
1
1012
FMA1 rotation direction fault
Off/On
P05 = 1, 2 or 3
1
1013
FMA1 current limitation
Off/On
P05 = 1, 2 or 3
1
1014
FMA1 temperature limitation
Off/On
P05 = 1, 2 or 3
1
1015
FMA1 off
Off/On
P05 = 1, 2 or 3
1
1020
FMA1 internal DC voltage
V
P05 = 1, 2 or 3
1
1021
FMA1 IGBT temperature
°C
P05 = 1, 2 or 3
1
1022
FMA1 indoor room temperature
°C
P05 = 1, 2 or 3
1
1023
FMA1 MCU temperature
°C
P05 = 1, 2 or 3
1
1024
FMA1 motor temperature
°C
P05 = 1, 2 or 3
1
1048
FMA1 product code
P05 = 1, 2 or 3
1
1049
FMA1 software version
P05 = 1, 2 or 3
6.3.2 FMA2 information (sub-menu 10.2)
Access
level
No.
1
1050
FMA2 max. speed
rpm
P05 = 2 or 3
1
1051
FMA2 requested speed
rpm
P05 = 2 or 3
1
1052
FMA2 current speed
rpm
P05 = 2 or 3
1
1053
FMA2 current consumed
A
P05 = 2 or 3
1
1054
FMA2 peak supply voltage
V
P05 = 2 or 3
1
1055
FMA2 power input
W
P05 = 2 or 3
1
1060
FMA2 fault summary
Off/On
P05 = 2 or 3
1
1061
FMA2 start-up fault
Off/On
P05 = 2 or 3
1
1062
FMA2 rotation direction fault
Off/On
P05 = 2 or 3
1
1063
FMA2 current limitation
Off/On
P05 = 2 or 3
1
1064
FMA2 temperature limitation
Off/On
P05 = 2 or 3
1
1065
FMA2 off
Off/On
P05 = 2 or 3
Description
Unit
Display condition
1
1070
FMA2 internal DC voltage
V
P05 = 2 or 3
1
1071
FMA2 IGBT temperature
°C
P05 = 2 or 3
1
1072
FMA2 indoor room temperature
°C
P05 = 2 or 3
1
1073
FMA2 MCU temperature
°C
P05 = 2 or 3
1
1074
FMA2 motor temperature
°C
P05 = 2 or 3
1
1098
FMA2 product code
P05 = 2 or 3
1
1099
FMA2 software version
P05 = 2 or 3
NA 09.41 G
EN - 20
6.3.3 FMA3 information (sub-menu 10.3)
Access
level
No.
1
1100
FMA3 max. speed
rpm
P05 = 3
1
1101
FMA3 requested speed
rpm
P05 = 3
1
1102
FMA3 current speed
rpm
P05 = 3
1
1103
FMA3 current consumed
A
P05 = 3
Description
By default
Display condition
1
1104
FMA3 peak supply voltage
V
P05 = 3
1
1105
FMA3 power input
W
P05 = 3
1
1110
FMA3 fault summary
Off/On
P05 = 3
1
1111
FMA3 start-up fault
Off/On
P05 = 3
1
1112
FMA3 rotation direction fault
Off/On
P05 = 3
1
1113
FMA3 current limitation
Off/On
P05 = 3
1
1114
FMA3 temperature limitation
Off/On
P05 = 3
1
1115
FMA3 off
Off/On
P05 = 3
1
1120
FMA3 internal DC voltage
V
P05 = 3
1
1121
FMA3 IGBT temperature
°C
P05 = 3
1
1122
FMA3 indoor room temperature
°C
P05 = 3
1
1123
FMA3 MCU temperature
°C
P05 = 3
1
1124
FMA3 motor temperature
°C
P05 = 3
1
1148
FMA3 product code
P05 = 3
1
1149
FMA3 software version
P05 = 3
EN
7. FAULT LEVEL (menu 6)
Each type of fault can be forwarded to one of the following two changeover contact relays:
• Non-critical fault relay.
• Critical fault relay.
This menu is used to configure which type of fault will be forwarded to which relay (critical or non-critical).
No.
Description
Setting
Unit
Display condition
N02
No air flow (*)
0: Non-critical fault
1: Critical fault
1
N03
Fan (*)
0: Non-critical fault
1: Critical fault
1
N04
Compressors (Condensation unit
Low pressure for each circuit
High pressure or circuit breaking for each circuit)
0: Non-critical fault
1: Critical fault
1
N05
Filtration fouled
0: Non-critical fault
1: Critical fault
0
N06
Filtration blocked (*)
0: Non-critical fault
1: Critical fault
1
N07
Temperature sensors
0: Non-critical fault
1: Critical fault
1
N08
Electric heater
0: Non-critical fault
1: Critical fault
0
P16 > 0
N09
Humidifier
0: Non-critical fault
1: Critical fault
0
P10 > 0
N11
Water leak
0: Non-critical fault
1: Critical fault
0
N13
Temperature set high
0: Non-critical fault
1: Critical fault
0
P07 > 0 or P08 > 0
N14
Temperature set low
0: Non-critical fault
1: Critical fault
0
P07 > 0 or P08 > 0
N15
Relative humidity set high
0: Non-critical fault
1: Critical fault
0
P09 > or P10 > 0
N16
Relative humidity set low
0: Non-critical fault
1: Critical fault
0
P08 > 0 or P10 > 0
P17 > 0
Note:
• The faults marked (*) shut down the machine
• If the master/slave function is used, the faults defined as critical stop the unit.
EN - 21
NA 09.41 G
8. WEEKLY PROGRAMMING (menu 5)
This menu is only accessible if at least one timer channel is used. Only the configured channels are displayed. The two channels
can be programmed over a week. Each day can have different time schedules. Each channel can have twenty different programs.
A program includes the hours and the days for activation and deactivation of the channel.
TIMER CHANNELS:
8.1 Ventilation on sub-menu 5.1
This menu is only visible if P01 = 2 is configured.
When the channel is activated, the fan is authorised to start up. (To ensure this channel is active, check that no shunt has been
created on terminals 4 and 5 of terminal block J5).
8.2 Shifting the temperature setpoints (sub-menu 5.2)
This menu is only visible if P31 = 2 or P32 = 2 is configured.
When the channel is activated, the setpoint shift is activated.
8.3 Using the weekly programming
Weekly program
VENTILATION ON TIMER PR
PROG.:01 ACTIVATE DEACT
SCHEDULE:
00:00
DAY:
MO TU WE TH FR
OGR
IVA
00:
SA
AM
TE
00
SU
CONFIRM
NO
0:MENU
⇔
The first line indicates the timer channel (example VENTILATION ON). On the second line, the digit indicates the step for the
program currently being viewed. The cursor positioned on the box using the ⇑ and ⇓ buttons allows us to scroll through the
program steps.
The third line is used to enter the time for activating and deactivating the displayed program step. You can enter the hours and
minutes using the number pad.
With the cursor positioned on the NO box, press the ⇑ button to bring up the word "YES"; this program step is taken into account.
Press the ⇓ button to bring up the word "NO"; this program step is not taken into account. The cursor switches to the "NO" box
after having moved to the fourth line.
The fourth line is used to select the days of the week. They are in the following order: Monday, Tuesday, Wednesday, Thursday,
Friday, Saturday, Sunday.
Position the cursor on the selected day and press the ⇑ button to bring up the abbreviation for the day or press the⇓ key to clear
the text. Only the displayed days are taken into account.
Each operating day needs to be programmed.
The text "0: MENU" is only displayed if the cursor is on the box on line 2. In this position only, the 0 digit key can be used to return
to the previous menu.
⇔
9. CONTROL
● Progressive control
This may be proportional or proportional integral.
- Proportional control
To obtain the strictly proportional, set the integral time (setting configuration) to the value of 0 seconds. Control is carried
out continuously. At each scan, the controller compares the measurement and the setpoint and calculates the control value
proportionally to the discrepancy. With this type of control, there is always a discrepancy between the measurement and the
setpoint.
To stabilise the control, the proportional band must be increased. This type of control is recommended if all stages are controlled
as on/off (example: electric heater, direct expansion coil).
- Proportional-integral control
Proportional control is carried out continuously (see above). The integral calculation is carried out every 15 seconds. The value
obtained is added to that calculated proportionally. The proportional action allows the response to the measurement to be
accelerated based on the discrepancy between the measurement/setpoint. A high proportional band value allows the control loop
to be stabilised, but decreases the response speed. A value which is too large will lead to oscillations of a high amplitude during
start-up.
The integral action allows this discrepancy between the measurement and the setpoint to be cancelled. A high integral time allow
the control loop to be stabilised, but increases the time taken to cancel the discrepancy.
- Staged control
If the value measured differs from the setpoint upwards or downwards depending on the type of control to be obtained, the first
stage is triggered. If this value differs from the differential calculated between stages, the second stage is triggered, and so on
and so forth
● Control of the "Target" temperature
This is proportional or proportional integral.
- Cooling control
The master control is increased if the temperature exceeds the setpoint. This value is broken down according to the parameter
settings (unit type parameter) and is:
• Progressive for the chilled water valve control.
NA 09.41 G
EN - 22
• Staged for the control of compressors or condensation units.
• Progressive for the control of the fan speed controller. This slave control exists regardless of the parameter settings.
• Staged for indicating that the upper temperature limit has been exceeded.
• Limitation of the cooling demand if the lower supply air limit setpoint has been exceeded. (Progressive on CW, staged on DX
model).
Depending on the strictly proportional composition of the unit, a discrepancy may remain between the setpoint and the
measurement, even with all the elements at 0.
- Heating control
The master control is increased if the temperature drops below the setpoint. This value is broken down according to the parameter
settings (unit type parameter) and is:
• Progressive for the electrical current or hot water valve control.
• Progressive for the limitation of the dehumidification control. This slave control exists regardless of the parameter settings.
• Staged for indicating that the lower temperature limit has been exceeded. Depending on the composition of the unit, as strictly
proportional, a discrepancy may remain between the setpoint and the measurement, even with all the elements at 0.
- Operation in free cooling mode
CW (chilled water) units
• Return air temperature sensor: Progressive operation of motorised dampers then the 3-way valve.
• Supply air temperature sensor: limitation of the 3-way valve then the FRESH AIR damper.
DXA (direct expansion) units
• Return air temperature sensor: progressive operation of the dampers (condensation units off).
• Supply air temperature sensor: FRESH AIR damper limit
● Control of the "Target" relative humidity
This is proportional or proportional integral.
- Dehumidification control
The master control is increased if the relative humidity exceeds the setpoint. This value is broken down according to the parameter
settings (unit type parameter) and is:
• Progressive for the chilled water valve control.
• Staged for the control of the direct expansion coil.
• Staged for indicating that the upper relative humidity limit has been exceeded.
Depending on the strictly proportional composition of the unit, a discrepancy may remain between the setpoint and the
measurement, even with all the elements at 0.
This control is limited by the lower drift of the target temperature.
Note: If the cooling and dehumidification controls control the same component, it is the largest value which counts.
- Humidification control
The master control is increased if the relative humidity drops below the setpoint.
This value is broken down according to the parameter settings (unit type parameter) and is:
• Progressive for the humidifier control.
• Staged for indicating that the lower relative humidity limit has been exceeded.
Depending on the composition of the unit, as strictly proportional, a discrepancy may remain between the setpoint and the
measurement, even with all the elements at 0.
10. SENSORS
● Sensor specifications
• TEMPERATURE
Range: -35°C to + 105°C.
Tolerance: ± 0.2°C from 0 to 70°C.
Thermistor: CTN 10 k at 25°C.
Reference: 10 K 3A1.
Adjustment of the controlled and outdoor temperature sensor from -5 to +5 °C (reserved for the manufacturer access level).
• HUMIDITY
0-10 V sensor range
Relative humidity: 0 to 100%.
Adjustment of the controlled and outdoor humidity sensor from -10 to 10 °C (reserved for the manufacturer access level).
• DIFFERENTIAL PRESSURE
Differential air pressure: 0 to 1000 Pa.
0-5 V sensor range
Differential air pressure: 0.5 V - 4.5 V ⇒ 0 to 1000 Pa
● Failure to connect, wire cut or short circuit feedback.
Only the temperature sensors are controlled.
The fault is displayed. It stops the corresponding controls and controllers, for example: the outdoor sensor fault can stop the free
cooling control.
Example of adjustment on controlled temperature:
1. Reading parameters (menu 3.3) ⇒ ENTER
2. Cursor opposite parameter P255 - Controlled temperature ⇒ ENTER
3. Modify the adjustment (-5 to +5°C)
4. Confirm with the ENTER key.
EN - 23
NA 09.41 G
EN
11. COMMISSIONING
1. Power up.
2. The yellow voltage present indicator on the console comes on.
3. Adjust the setpoint and settings parameters as explained in sections 4 and 5.
4. Press the power button (if the green LED does not come on, check whether parameter P99 is locked "P99 = 1").
5. The green indicator flashes if the external control contact is open; if the timer is not set to operate the unit then it remains on
standby.
6. If the green indicator comes on, the unit will be started.
OPERATING STATUS OF THE UNITS
● Stopped: The units are operating individually. The unit in question is authorised by the console button and by the external
safety contact. The unit is not faulty, it is powered on. The unit is stopped by the on/off control (contact or timer).
● Forced stop: The unit in question is stopped by the console button or by the external safety contact. It is not faulty, it is powered on.
● Operating: The units are operating individually. The unit in question is authorised by the console button and by the external
safety contact. The unit is not faulty, it is powered on. The unit is authorised by the on/off control (contact or timer).
● In automatic operation: The units are operating as master/slaves. At least one unit is configured as backup or additional.
The unit in question is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered on.
The unit is not controlled by the on/off (contact or timer). The unit is not selected as a backup or additional unit.
● In override: The units are operating as master/slaves. At least one unit is configured as backup or additional. The unit in
question is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered on. The unit is
controlled by the on/off (contact or timer).
● In standby: The units are operating as master/slaves. At least one unit is configured as backup or additional. The unit in
question is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered on. The unit is
not controlled by the on/off (contact or timer). The unit is selected as a backup or additional unit, but it is not operating as a backup
or additional unit.
● As backup: The units are operating as master/slaves. One unit is configured as backup or additional. The unit in question is
authorised by the console button and by the external safety contact. The unit is not controlled by the on/off (contact or timer).
The unit is selected as a backup or additional unit, it is operating as a backup but not as an additional unit.
● As additional: The units are operating as master/slaves. One unit is configured as additional. The unit in question is authorised
by the console button and by the external safety contact. The unit is not faulty, it is powered on. The unit is not controlled by the
on/off (contact or timer). The unit is selected as an additional unit, it is operating as an additional unit but not as backup.
● As additional and backup: The units are operating as master/slaves. One unit is configured as additional. The unit in question
is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered on. The unit is not
controlled by the on/off (contact or timer). The unit is selected as an additional unit, it is operating as an additional and backup unit.
● With non-critical fault: The unit in question is powered on. It has at least one non-critical fault, but no critical faults.
● With critical fault: The unit in question is powered on. It has at least one critical fault.
● Powered off: The µAIR CONNECT 2 for the unit in question is not responding. It is not powered on or the bus connection is broken.
OPERATING INFORMATION FOR EACH UNIT (menu 1 "operating info'')
● Unit with no fault
The first line: displays the values measured by the target relative humidity and/or temperature sensors.
The second line: displays the target relative humidity and/or temperature setpoint values.
For the two values, the value displayed is the setpoint for the last control mode (heating or cooling, humidification or
dehumidification).
If the measurement value is below the heating or humidification setpoint, it is this setpoint which is displayed. If the measurement
value is above the cooling or dehumidification setpoint, it is this setpoint which is displayed. If the measurement value is between
the two setpoints, the value displayed does not change.
The third line displays the unit's operating status:
● Unit stopped: The fan is stopped as are all the controls and controllers.
● Unit operating: The one-speed or variable speed fan is operating, the controls are authorised, the temperature setpoints are
calculated based on the normal value.
● Unit in fan delay: The unit stop has been requested, the controls and controllers are no longer authorised. The fan operates
until the fan delay is finished.
● Unit stopped by the safety contact: The external safety contact is open. The unit stop has been requested.
● Unit faulty: the last fault that appeared is displayed with a text indicating the components which have been stopped and the first
verifications to be carried out before acknowledging the fault.
NA 09.41 G
EN - 24
TABLE OF ALARMS
Faults
Sources
Filtration fouled
Filtration blocked
Pressure sensor
No air flow
Fan/motor
Belts
Switch
Circuit breaker
Embedded thermistor
Causes
Solutions
Filter fouled
• Clean or replace the filter
Filter too dirty
(ventilation stopped)
• Replace the filter
Belts
• Check the tension
• Replace the belts
Filters
• Clean or replace
Fan
• See fan fault
Damper
• Check the opening
• Check the servomotor
Motor
• Check the direction of rotation
Network
• Check the network pressure drop
Fan stopped
• Check the belts
Motor
• Check the motor's power supply
• Check the switch, the circuit breaker setting, the motor's embedded
thermistor
• Check the motor cooling
• Measure the input current
• Check the compressor's power supply
• Check the switch, the circuit breaker setting
• Measure the input current
Switch
Circuit breaker
• Check the charge, top up
• Measure the air temperature at the coil intake,
• Check the operation of the expansion valve, the valves, the condition of
the dryer,
• Check that the water loop is bled correctly
Compressor stopped
Circuit breaker LP
HP/compressor
Low pressure
pressostat
• Check the charge
• Check the operation of the expansion valve, the valves and the condenser
• Check that the outdoor temperature does not exceed the drycooler
selection value,
• Reset the pressure switch (clear the fault before resetting)
• Check the compressor input current
• Check the power supply
High pressure switch
Electric heater
Cylinder
Humidifier
No production of
steam
Drain
Condensation unit
Water leak
Sensor
No more operation or
display
The time is wrong
Overheating
• Check the air flow rate
• Measure the input current
• Measure the supply voltage
• Check the fan delay duration
No heating
• Check the supply voltage
• Check the switches, the circuit breakers, the triac (option), the control
component
• Reset the thermostat (clear the fault before resetting)
The humidifier does not work
• Check the supply voltage
• Check the switch, the circuit breaker, the control component, the
humidifier control panel
Cylinder dirty
Change the cylinder
No water in the cylinder
• Check the water supply
• Check that the valve is operating correctly
• Check the power supply to the electrodes
• Add a handful of salt to the cylinder
• Refer to the indications on the humidifier control panel
Pan overflowing
• Check that the drain valve is operating correctly
• Check that the drain circuit is not blocked
Refrigeration stopped
• Refer to the manual or to the unit's controller to troubleshoot the fault
Pan overflowing
• Check that the siphon is of the correct design
• Check the priming of the siphon
• Check that the condensate is draining correctly
• Check that the air flow is not too high
Coil or humidifier leak
• Find the leak and stop it
Electric heater
Humidifier
Water leak sensor
EN
• Check the sensor
• Check the connection and continuity of the cable
Temperature sensor
Eprom memory
• Contact CIAT After-Sales
Fault with the CPU board battery
- the timer has stopped working
• Change the battery
EN - 25
NA 09.41 G
Faults
Sources
Causes
Solutions
• Check the sensor
• Replace the sensor
Sensor
Low temperature
Temperature sensor
Malfunction
Drift in dehumidification mode
Temperature sensor
Malfunction
Room overheated
Humidity sensor
Malfunction
Humidity sensor
• Revise the room loads
• Check the stability of the control
• Check the operation of the humidifier
• Revise the room loads
• Check the sensor
• Replace the sensor
Sensor
High humidity
• Check the stability of the control
• Check the operation of the cooling valve, the compressors
• Check the sensor
• Replace the sensor
Sensor
Low humidity
• Internal load insufficient
• Check the sensor
• Replace the sensor
Sensor
High temperature
• Check the stability of the control
• Check the operation of the heating valve or the electric heater
Malfunction
Excessively high humidity
• Check the stability of the control
• Check the operation of the cooling valve, the compressors
• Revise the room loads
12. CHANGING THE CONTROLLER PROGRAM VERSION
To change the µAirConnect2 controller fan version (update to the latest version, for example), the memory (EPROM) containing
the program must be replaced.
The µAIR CONNECT 2 Eprom must be changed when the unit is powered off (yellow LED on the console off) and the control
electrics box disconnect switch is open.
● µAIR CONNECT 2 memory replacement procedure
• Open the door of the vertical unit.
• Disconnect the connectors on the µAIR CONNECT 2.
• Unscrew the mounting bolts on the µAIR CONNECT 2 enclosure.
• Mark the EPROM to be replaced. Component on support).
• Unplug the memory.
• Plug in the new memory (ensure the correct direction of fitting).
• Refit the µAIR CONNECT 2 enclosure and screw in its mounting screws.
• Reconnect the connectors to the µAIR CONNECT 2.
• The unit can be restarted.
NA 09.41 G
EN - 26
13. BUS FOR MASTER/SLAVE FUNCTION
13.1 Bus connection
BETWEEN THE VARIOUS UNITS
µAIR CONNECT 2 MASTER
µAir connect 2 SLAVE
J9
ON
1
OFF
2
J9
ON
OFF
3
1
2
3
EN
COM2
COM2
µAir connect 2 SLAVE
Multiconductor
cables
shielded, jacketed (shielding
with braiding), length between
the 1st and the last µAIR
CONNECT 2.1:
1000 m
1: Line A or +
2: Line B or 3: Earth
J9
ON
OFF
1
2
3
COM2
COM2: Bus polarisation switch
Master unit = ON
Slave unit = OFF
13.2 Addressing procedure for the units
The first time the power is switched on, all the boards are initialised with the parameter P215 "UNIT NUMBER ON CONSOLE"
having the value 1.
Connection diagram
Shunt to be removed from connector J2
Terminals 1 and 7
J9
µAIR CONNECT 2.1
Controller
Unit 1
(P215 = 1)
J9
µAIR CONNECT 2.1
Controller
Unit 2
(P215 = 2)
J9
µAIR CONNECT 2.1
Controller
Unit 3
(P215 = 3)
On the controller for unit 1, in the "CONFIGURATION OF NUMBER OF UNITS" menu, "OPERATING CONFIGURATION", adjust
the parameter "C01 NUMBER OF UNITS": (3 in the example).
Addressing units
The parameter P215 must be set on each unit.
Position the cursor opposite unit 1 and press the "ENTER" key’.
In the "PARAMETERS"’, "SETTINGS PARAMETERS" menu, set parameter P215 to the value corresponding to the unit number.
EN - 27
NA 09.41 G
14. BUS FOR CONNECTION TO AN RS485 MODBUS CMS
14.1 Bus connection between the units and the CMS.
The communication bus between the units and the CMS is a 2-wire RS485 bus
The green light indicates that the data sent by the CMS to the µAir Connect 2 has been received.
The yellow light indicates that data has been sent by the µAir Connect 2 to the CMS.
To CMS
2
ON
OFF
3
COM1
ON
J10
2
OFF
3
Multiconductor
cables,
shielded, jacketed (shielding
with braiding), length between
the 1st and the last
µAIR CONNECT 2.1: 1000 m
1: Line A or +
2: Line B or 3: Earth
COM1
Last unit
1
J10
2
ON
OFF
3
COM1
COM1:
Line termination resistor switch
First unit = OFF
Intermediate unit = OFF
Last unit = ON
NA 09.41 G
Multiconductor
cables,
shielded, jacketed (shielding
with braiding), length between
the 1st and the last
µAIR CONNECT 2.1: 1000 m
1: Line A or +
2: Line B or 3: Earth
To ensure correct operation,
the line must be polarised.
Intermediate unit(s)
1
Earth
J10
Line B or +
1
Line A or +
1st Unit
EN - 28
14.2 Configuring the communication bus parameters (menu 7)
This menu gives access to all parameters used to define the communication protocol and the 2-wire RS485 serial link parameters.
Access
level
No.
2
700
Description
Setting
By default
Communication mode
1: MODBUS/JBUS
1
1
2
701
Communication speed
0: 4800 bauds
1: 9600 bauds
2: 19200 bauds
2
702
Parity
0: None
1: Even
2: Odd
0
2
703
Number of stop bits
1 stop bit
2 stop bits
1
2
704
Actual number format reversed
0: No
1: Yes
0
2
705
Slave number
1 to 255
1
Control type*
0: Local
1: Remote
1
2
706
Display condition
EN
* If the selected control type is local, the controller data can be accessed in read only mode by the PLC; with remote selection, the
controller data can be accessed in read and write mode by the PLC.
14.3 MODBUS PROTOCOL
● RS485 2-wire communication support
3-pin connector (J10)
Terminal 1: A or +
Terminal 2: B or –
Terminal 3: 0 V
Line termination resistor: Connected if COM1 is ON
Not connected if COM1 is OFF
External BUS polarisation.
● Transmission mode
•
•
•
•
•
Series, asynchronous, half duplex, 1 start bit, 8 data bits,
Parity configured by P702 (none, odd or even)
Number of stop bits configured by P703 (1 stop bit or 2 stop bits)
Communication speed configured by P701 (4800, 9600 or 19200)
Slave no. on the bus configured by P705
● Protocol
• Modbus (Gould Modicon)
• Compatible: JBUS (Merlin Gerin)
• RTU (GENERAL ELECTRIC protocol)
● Codes for functions used
•
•
•
•
•
•
•
•
1 or 2: Read n bits
3 or 4: Read multiple registers (16 bits) Maximum of 126 registers read.
5: Write one bit
6: Write one register
8: Read diagnostic counter
11: Read event counter
15: Write n bits
16: Write multiple registers (16 bits)
● Analogue value encoding
• Standard 32-bit IEEE format (2 registers).
• The byte order can be reversed with P704 (0:not reversed or 1:reversed)
Note: the register numbers correspond to the addresses coded on 16 bits.
● Register definitions
• Function 3 or 4 is used for reading,
• Function 6 or 16 is used for writing.
● Remote reporting (read only)
Damper
01 Controller type
EN - 29
NA 09.41 G
● Remote measurement (read only)
Registers
• 03 and 04 Outdoor temperature
• 05 and 06 Controlled temperature
• 07 and 08 Controlled humidity
• 09 and 10 Calculated cooling temperature setpoint
• 11 and 12 Calculated heating temperature setpoint
• 13 and 14 Outdoor humidity
• 32 and 33 Compressor 1 operating-hour meter
• 34 and 35 Compressor 2 operating-hour meter
• 36 and 37 Electric heater 1 operating-hour meter
• 38 and 39 Electric heater 2 operating-hour meter
• 40 and 41 Fan operating-hour meter
• 48 Heating coil percentage
• 49 Cooling coil percentage
• 50 Humidifier percentage
• 51 Air flow percentage
• 52 Fresh air percentage
• 53 Electric heater percentage
● Remote setting (read and write)
IEEE format
Registers
• 257 and 258 Cooling temperature setpoint
• 259 and 260 Heating temperature setpoint
• 261 Humidity setpoint during dehumidification
• 262 Humidity setpoint during humidification
• 263 and 264 Fixed setpoint shift in cooling mode
• 265 and 266 Fixed setpoint shift in heating mode
● Remote setting (read and write)
Registers
• 512 Year
• 513 Month
• 514 Day of the month
• 515 Day of the week (1:Monday, 2:Tuesday, 3:Wednesday, 4:Thursday, 5:Friday, 6:Saturday, 7:Sunday)
• 516 Hour
• 517 Minute
Bit definitions
• Function 1 or 2 is used for reading,
• Function 5 or 15 is used for writing.
● Remote signalling (read only)
•
•
•
•
•
•
•
01
16
17
18
19
20
32
Control type (0: local, 1: remote)
Supply air fan operation (0: off, 1: on)
Compressor 1 operation (0: off, 1: on)
Compressor 2 operation (0: off, 1: on)
Electric heater 1 operation (0: off, 1: on)
Electric heater 2 operation (0: off, 1: on)
Start-up request (0:no, 1:yes)
● Remote alarm (read only)
Display 1 = limitation or fault present.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
48: Critical fault summary
49: Non-critical fault summary
50: Supply air fan fault
51: Air flow fault
52: Filter fouled fault
53: Clogged filter fault
55: Electric heater fault
56: Humidifier fault
57: Water leak fault
58: Condensation unit 1 fault
59: Condensation unit 2 fault
60: High temperature fault
61: Low temperature fault
62: High humidity fault
63: Low humidity fault
NA 09.41 G
EN - 30
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
64: Controlled temperature sensor fault
65: Output temperature sensor fault
66: Outdoor temperature sensor fault
68: EEPROM fault
80: Circuit 1 low pressure fault
81: Circuit 1 high pressure or circuit breaking fault
96: Circuit 2 low pressure fault
97: Circuit 2 high pressure or circuit breaking fault
112: FMA1 fault summary
113: FMA1 start-up fault
114: FMA1 rotation direction fault
115: FMA1 current limitation
116: FMA1 temperature limitation
128: FMA2 fault summary
129: FMA2 start-up fault
130: FMA2 rotation direction fault
131: FMA2 current limitation
132: FMA2 temperature limitation
144: FMA3 fault summary
145: FMA3 start-up fault
146: FMA3 rotation direction fault
147: FMA3 current limitation
148: FMA3 temperature limitation
EN
● Remote control (read and write)
• 512 On/Off (0:off, 1:On)
15. BUS FOR CONNECTION TO A CMS (LON)
As an option integrated into the vertical unit, CIAT provides a MODBUS/LON gateway.
The gateway is used to translate the main information available in MODBUS into LON. (Lists of information available in LON in
paragraph 15.3).
It is possible to connect 1 to 5 units to the LON gateway.
This option can also be added to a vertical unit which is already operating.
RESPONSIBILITY
CIAT
Installer
Integrator
X
If option "sold separately" /
Checking connection of the gateway RS 485 MODBUS side/
X
Checking connection of the gateway kit RS 485 - LON side/
X
(1)
CIAT unit system start-up
(2)
X
(1) CIAT service if a CIAT warranty extension (including system start-up) was sold
(2) Installer service if no CIAT system start-up sold
Note: The MODBUS RS485/LON gateway can only operate correctly if it is connected to a Building Technical
Management system (not supplied by CIAT).
EN - 31
NA 09.41 G
D
15.1 Bus connection between the controllers, gateway and the CMS
LON bus to CMS
1st Unit
G0
Rx/Tx+
Rx/Tx-
G0
4
G
3
C2
5
LON gateway
C1
µAir Connect2.1 controller
1
2
1
2
3
ON
J10
1
2
OFF
3
COM1
24V~
ON
J10
1
2
OFF
3
COM1
Last unit
µAir Connect2.1 controller
ON
J10
1
2
OFF
3
COM1
NA 09.41 G
EN - 32
Earth
Line B or +
µAir Connect2.1 controller
Line A or +
intermediate unit(s)
Multiconductor
cables,
shielded, jacketed (shielding
with braiding), length between
the 1st and the last
µAir Connect2.1: 1000 m
1: Line A or +
2: Line B or 3: Earth
Note: The MODBUS RS485/LON gateway can only operate correctly if it is connected to a
Building Technical Management system (not supplied by CIAT).
15.2 Configuration of the connectors linked to the LON gateway.
The communication parameters for each controller must be set to the following values:
•
P700 (Communication mode) = 1 (MODBUS)
•
P701 (Communication speed) = 1 (9600 bauds)
•
P702 (Parity) = 0 (None)
•
P703 (Number of stop bits) = 1 (1 stop bit)
•
P704 (Variables in actual format) = 1 (Yes)
•
P705 (Bus number) = see information below.
•
P706 (Control type = 2 (Remote)
EN
LonWork ®
1st Unit
P705=1
P705=2
2nd unit
P705=3
3rd unit
4th unit
P705=4
P705=5
5th unit
EN - 33
NA 09.41 G
15.3 List of parameters
Description
Name of the LON variable
Unit 1
Unit 2
Controlled temperature (P255)
Controlled humidity (P256)
Supply air temperature (P259)
Outdoor temperature (P258)
Outdoor humidity (P265)
Filter differential pressure (P257)
Floor differential pressure (P266)
Cooling temperature setpoint (P103)
Heating temperature setpoint (P106)
Dehumidification humidity setpoint (P109)
Humidification humidity setpoint (P115)
Supply air fan speed setpoint (P155)
Start-up request
On/Off
Supply air fan (P330)
Condensation unit 1 (P300)
Condensation unit 2 (P304)
Electric heater stage 1 (P320)
Electric heater stage 2 (P322)
Air flow rate ctrl percentage (P295)
Cooling coil ctrl percentage (P291)
Heating coil ctrl percentage (P290)
Electric heater ctrl percentage (P297)
Humidifier ctrl percentage (P294)
Fresh air ctrl percentage (P296)
External safety (P278)
Non-critical fault summary (P352)
Critical fault summary (P350)
Supply air fan fault
Air flow fault
Filter fouled fault
Clogged filter fault
Electric heater fault
Condensation unit 1 fault
Condensation unit 2 fault
Humidifier fault
High temperature fault
Low temperature fault
High humidity fault
Low humidity fault
Water leak fault
On/Off control
Cool temp. setpoint adjustment (P103)
Heating temp. setpoint adjustment (P104)
Dehumidification temperature setpoint adjustment
(P109)
Humidification temperature setpoint adjustment
(P115)
Supply air fan speed setpoint adjustment (P155)
NA 09.41 G
EN - 34
Unit 3
Unit 4
Unit 5
CIAT Service
Tel.: 08 11 65 98 98 - Fax: 08 26 10 13 63
(0.15 €/min)
This document is not legally binding.
As part of our continuous drive to improve our products, CIAT
reserves
the right to make any technical modifications without prior notice.
Registered address
Avenue Jean Falconnier B.P. 14
01350 Culoz - France
Tel.: +33 (0)4 79 42 42 42
Fax: +33 (0)4 79 42 42 10
info@ciat.fr - www.ciat.com
Compagnie Industrielle
d’Applications Thermiques
Corporation with a capital of €26,728,480
R.C.S. Bourg-en-Bresse B 545.620.114
With Ecofolio,
all papers
can be recycled
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