38RBS 039-160 Pro-Dialog+ Control

38RBS 039-160 Pro-Dialog+ Control
38RBS 039-160
Pro-Dialog+ Control
\\MAINMENU\STATUS
CAPB_T
DEM_LIM
SP
CTRL_PNT
EMSTOP
0
100
4.2
-28.9
dsable
%
%
°C
°C
Circuit B Total Capacity
START/STOP
ENTER
PRO-DIALOG+
Operation instructions
Contents
1 - SAFETY CONSIDERATIONS................................................................................................................................................ 3
1.1 - General...................................................................................................................................................................................... .3
1.2 - Avoid electrocution.................................................................................................................................................................. .3
2 - GENERAL DESCRIPTION..................................................................................................................................................... 3
2.1 - General...................................................................................................................................................................................... .3
2.2 - Abbreviations used.................................................................................................................................................................. .3
3 - HARDWARE DESCRIPTION................................................................................................................................................ 4
3.1 - General...................................................................................................................................................................................... .4
3.2 - Power supply to boards............................................................................................................................................................ .4
3.3 - Light emitting diodes on boards............................................................................................................................................. .4
3.4 - The sensors................................................................................................................................................................................ .5
3.5 - The controls............................................................................................................................................................................... .5
3.6 - Connections at the user terminal block................................................................................................................................. .5
4. SETTING UP PRO-DIALOG+ CONTROL (OPTION)...................................................................................................... 7
4.1 - General features....................................................................................................................................................................... .7
4.2 - Default screen characteristics................................................................................................................................................. .7
4.3 - Password screens...................................................................................................................................................................... .7
4.4 - Menu screen characteristics.................................................................................................................................................... .7
4.5 - Data screen or configurable parameter characteristics....................................................................................................... .7
4.6 - Parameter modification........................................................................................................................................................... .8
4.7 - Operating mode screen........................................................................................................................................................... .8
4.8 - Menu tree structure.................................................................................................................................................................. .9
4.9 - Detailed menu description.................................................................................................................................................... .10
5 - PRO-DIALOG PLUS CONTROL OPERATION............................................................................................................. 15
5.1 - Start/stop control.................................................................................................................................................................... .15
5.2 - Safety loop.............................................................................................................................................................................. .16
5.3 - Control point.......................................................................................................................................................................... .16
5.4 - Demand limit.......................................................................................................................................................................... .16
5.5 - Night mode.............................................................................................................................................................................. .16
5.6 - Capacity control..................................................................................................................................................................... .16
5.7 - Indoor fan control.................................................................................................................................................................. .17
5.8 - Head pressure control........................................................................................................................................................... .17
5.9 - High-pressure unloading function........................................................................................................................................ .17
5.10 - Pumpdown............................................................................................................................................................................ .17
6 - DIAGNOSTICS - TROUBLESHOOTING.......................................................................................................................... 17
6.1 - General.................................................................................................................................................................................... .17
6.2 - Displaying alarms with the alarm LED............................................................................................................................... .17
6.3 - Displaying alarms on the Pro-Dialog+ interface................................................................................................................ .17
6.4 - Resetting alarms..................................................................................................................................................................... .17
6.5 - Alarm codes........................................................................................................................................................................... .18
The cover photos are solely for illustration and forms no part of any offer for sale or any sale contract. The manufacturer
reserves the right to change the design at any time without notice.
2
1 - SAFETY CONSIDERATIONS
2 - GENERAL DESCRIPTION
1.1 - General
2.1 - General
Installation, start-up and servicing of equipment can be
hazardous if certain factors particular to the installation are
not considered: operating pressures, presence of electrical
components and voltages and the installation site (elevated
plinths and built-up up structures).
Pro-Dialog is an electronic control system to regulate 38RBS
condensing units. These units have one or two refrigerant
circuits.
Only properly qualified installation engineers and highly
qualified installers and technicians, fully trained for the
product, are authorised to install and start-up the equipment
safely.
During all servicing operations all instructions and recommendations which appear in the installation and service instructions for the product, as well as on tags and labels fixed to
the equipment and components and accompanying parts
supplied separately, must be read, understood and followed.
• Apply all standard safety codes and practices.
• Wear safety glasses and gloves.
• Use the proper tools to move heavy objects. Move
units carefully and set them down gently.
1.2 - Avoid electrocution
Only personnel qualified in accordance with IEC (International Electrotechnical Commission) recommendations
may be permitted access to electrical components. It is
particularly recommended that all sources of electricity to
the unit be shut off before any work is begun. Shut off the
main power supply at the main circuit breaker or isolator.
IMPORTANT: This equipment conforms to all applicable
codes regarding electromagnetic compatibility.
Pro-Dialog control must be completed either by a thermostat
or by two temperature sensors (room and supply air).
Control by thermostat (via contacts) is the default operating
mode and called remote mode.
For two-stage cooling units the Carrier 33CS thermostat
can be used.
The thermostat (programmable or non programmable)
ensures the start-up of the indoor fan and controls the unit
cooling stages (two to four stages, depending on the unit
size). This thermostat can also allow control of the electric
heater.
A second control type with temperature sensors is also
possible. Selection and parameter setting of this control
type are only available via the Carrier Pro-Dialog+ HMI
user interface. As an option Carrier offers the complete
equipment required for this control type.
To use this control type, three operating modes are available:
• Local on - continuous temperature control.
• Loc/Prog on - temperature control only in the occupancy
ranges defined by the user via the local interface.
• CCN bus - temperature control, based on the commands
from the Carrier Comfort Network (CCN).
Temperature sensor control permits:
• room temperature control at the desired setpoint,
• ensuring a minimum supply air temperature.
Independent of the selected control type, Pro-Dialog:
• ensures user comfort,
• controls the compressors based on the cooling load,
• controls the fans to optimise operation of each
refrigerant circuit,
• ensures unit protection.
The heating stages are not controlled by Pro-Dialog.
2.2 - Abbreviations used
In this manual, the refrigerant circuits are called circuit A
and circuit B. The compressors in circuit A are labelled A1,
A2 and A3. Those in circuit B are B1 and B2.
The following abbreviations are used frequently:
CCN
Carrier Comfort Network
DGT
Discharge gas temperature
LED
Light Emitting Diode
LEN
Internal communication bus linking the main
board to the slave boards
OAT
Outdoor air temperature
SCT
Saturated condensing temperature
SST
Saturated suction temperature
3
3 - HARDWARE DESCRIPTION
3.1 - General
The control system consists of an NRCP2-BASE board for
single-circuit units (up to two compressors) and two NRCP2BASE boards (one master and one slave board) for units
with three or four compressors.
All boards communicate via an internal LEN bus. The
NRCP2-BASE boards continuously manage the information received from the various pressure and temperature
probes. The NRCP2-BASE master board contains the
program that controls the unit.
The user interface includes an alphanumeric eight-line
display, two LEDs with five navigation keys as well as a
contrast control wheel.
Control board
Green LED
Unit has stopped
Contrast control
wheel
Back to the previous
screen
Unit starts up
Unit in operation
Red LED
No alarm
Warning
Circuit or complete unit error
Up/Down key
- Navigation
- Modification
On/off key
- Unit stopped
- List of available operating
modes (only in local mode)
Enter key
- Validation
- Access to the operating mode selection
3.2 - Power supply to boards
3.3 - Light emitting diodes on boards
All boards are supplied from a common 24 V a.c. supply
referred to earth.
All boards continuously check and indicate the proper
operation of their electronic circuits. A light emitting diode
(LED) on each board lights when it is operating properly.
• The red LED flashes for a two-second period - one
second on, one second off - to indicate correct operation.
A different rate indicates a board or a software failure.
• The green LED flashes continuously on all boards to
show that the board is communicating correctly over its
internal bus. If the LED is not flashing, this indicates a
LEN bus wiring problem.
• The orange LED of the master board flashes during
any communication via the CCN bus.
CAUTION: Maintain the correct polarity of the power
supply connection of the boards, to ensure that they are
not damaged.
If the power supply fails, the unit restarts automatically
without the need for an external command. Any faults active
when the supply is interrupted are saved and may in certain
cases prevent a circuit or unit from restarting.
4
3.4 - The sensors
3.5 - The controls
Pressure sensors
Two types of electronic (high and low-pressure) sensors
are used to measure the suction and discharge pressure in
each circuit.
Solenoid valves
Two solenoid valves must be installed on the liquid line of
each circuit to permit pumpdown of the circuit during
shut-down.
Thermistors
The outdoor temperature sensor is installed under a metal
plate. The compressor suction gas temperature sensors are
installed just upstream of the compressor.
Alarm LED
An LED installed at the front of the control box displays
the unit alarms.
If temperature sensor control is selected:
• The NTC 10 K room temperature sensor must be placed
in a position that is representative of the room temperature. Avoide exposure to the sun or to humidity.
• The NTC 5 K supply air sensor must be placed in a
position that is representative of the supply air temperature (downstream of the evaporator).
Alarm reset button
A push button installed at the front of the control box
permits resetting all activated unit alarms.
3.6 - Connections at the user terminal block
The contacts below are available at the user terminal block on
the NRCP2-BASE boards. Some contacts can only be used
if the unit operates in the remote operating mode (Remote).
NRCP2-BASE control board
J2A
J12
J2B
J3
J4
5
The following table summarises the connections at the user terminal block.
Terminal Board
Single-circuit unit
Contact 1: Indoor unit
fan
Connector/
channel
J4 / CH8
32-33
Contact 2: Cooling 1
J4 / CH9
63-64
Contact 3: Cooling 2
J4 / CH10
73-74
User safety loop input
J4 / CH11a
34-35
Description
Connection to solenoid J2B/CH21
valve A1
Connection to solenoid J2B/CH22
valve A2
Alarm relay output
J3 / CH24
CCN bus connection
24 V a.c. thermostat
supply
Dual-circuit unit
Contact 1: Indoor unit
fan
52-12
52a-12
30-31
J12
R.C
NRCP-BASE
master
This contact can be used to reverse indoor
fan operation. If the contact is not used, it
must be jumpered.
NRCP-BASE This contact is used to control the first
master
cooling stage: connected to thermostat.
NRCP-BASE This contact is used to control the second
master
cooling stage: connected to thermostat.
NRCP-BASE This contact can be used for any customer
master
safety loop that requires unit shut-down, if it
is open. If the contact is not used, it must be
jumpered.
Customer
Contact used for solenoid valve control of
terminal board compressor A1
Customer
Contact used for solenoid valve control of
terminal board compressor A2
NRCP-BASE Indicates that the unit is in alarm condition
master
NRCP-BASE Permits connection of the CCN
master
communication bus
Customer
terminal board
J4 / CH8
32-33
NRCP-BASE
master
Contact 2: Cooling 1
J4 / CH9
63-64
Contact 3: Cooling 2
J4 / CH10
73-74
User safety loop input
J4 / CH11a
34-35
NRCP-BASE
master
NRCP-BASE
master
NRCP-BASE
master
Contact 2: Cooling 3
J4 / CH9
63-64
Contact 3: Cooling 4
J4 / CH10
73-74
Connection to solenoid
valve A1
Connection to solenoid
valve A2
Connection to solenoid
valve B1
Connection to solenoid
valve B2
Alarm relay output
J2B/CH21
52-12
J2B/CH22
52a-12
J2B/CH21
53-12
J2B/CH22
53a-12
J3 / CH24
30-31
CCN bus connection
J12
24 V a.c. thermostat
R.C
supply
Unit with temperature sensor control
Room sensor input
J6 / CH1
278-0
278-1
Contact 1: Start of
J4 / CH8
278-2
occupied mode
278-3
Setpoint offset input
J6 / CH1
278-4
278-5
Supply air sensor input J6 / CH2
278-6
278-7
Output for indoor unit
J2B/CH23
278-6
fan control
278-8
Output for indoor unit
J3 / CH24
fan control
6
Remarks
NRCP-BASE
slave
NRCP-BASE
slave
Customer
terminal board
Customer
terminal board
Customer
terminal board
Customer
terminal board
NRCP-BASE
master
This contact can be used to reverse indoor
fan operation. If the contact is not used, it
must be jumpered.
This contact is used to control the first
cooling stage: connected to thermostat.
This contact is used to control the second
cooling stage: connected to thermostat.
This contact can be used for any customer
safety loop that requires unit shut-down, if it
is open. If the contact is not used, it must be
jumpered.
This contact is used to control the third
cooling stage: connected to thermostat.
This contact is used to control the fourth
cooling stage: connected to thermostat.
Contact used for solenoid valve control of
compressor A1
Contact used for solenoid valve control of
compressor A2
Contact used for solenoid valve control of
compressor B1
Contact used for solenoid valve control of
compressor B2
Indicates that the unit is in alarm condition
NRCP-BASE Permits connection of the CCN
master
communication bus
Customer
terminal board
Customer
terminal board
Customer
terminal board
Customer
terminal board
Customer
terminal board
Customer
terminal board
NRCP-BASE
slave
Permits connection of the room air sensor if
the control mode is selected.
This contact can be used to start unit operation
outside pre-defined occupany periods.
Permits connection of the room air sensor,
includes a potentiometer to offset the setpoint
Permits connection of the supply air sensor
24 V a.c. - 20 mA. Connection: 8-pin Wago 734-168,
pitch 3.5
Maximum 18 VA - 10 W - 24 V a.c.
Maximum 18 VA - 10 W - 24 V a.c.
Volt-free contact 24 V a.c., max. 48 V d.c., min. 20 V a.c.
or V d.c., max. 3 A, min. 80 mA min, external supply.
Connection: 4-pin WAGO 231-304/026000. pitch 5.08
Maximum 10 VA
24 V a.c. - 20 mA. Connection: 8-pin Wago 734-168,
pitch 3.5
Maximum 18 VA - 10 W - 24 V a.c.
Maximum 18 VA - 10 W - 24 V a.c.
Maximum 18 VA - 10 W - 24 V a.c.
Maximum 18 VA - 10 W - 24 V a.c.
Volt-free contact 24 V a.c., max. 48 V d.c., min. 20 V a.c.
or V d.c., max. 3 A, min. 80 mA min, external supply.
Connection: 4-pin WAGO 231-304/026000, pitch 5.08
Maximum 10 VA
NTC10 K
Push button
10 K
NTC 5 K
This contact can be used to control the
Maximum 18 VA - 10 W - 24 V a.c.
indoor fan or to signal that the unit is running
This contact can be used to control the
Volt-free contact 24 V a.c., max. 48 V d.c., min. 20 V a.c.
indoor fan
or V d.c., max. 3 A, min. 80 mA, external supply.
Connection: 4-pin WAGO 231-304/026000, pitch 5.08.
One terminal strip per board.
4. SETTING UP PRO-DIALOG+ CONTROL (OPTION)
Enter password
4.1 - General features
1_**
The interface includes different screens that are listed below:
• Default screens with direct display of the main
parameters,
• Menu screens for navigation,
• Data/configuration screens listing the parameters by
type,
• Operating mode selection screen,
• Password entry screen,
• Parameter modification screen.
NOTE: If the interface is not used for a long period, it will
go black. The control is always active, the operating mode
remains unchanged. The interface screen is re-animated,
when the user presses a key. Pressing the key once illuminates the screen, pressing the key a second time leads to a
screen that is related to the context and the key symbol.
4.2 - Default screen characteristics
There are four default screens. Each screen shows:
• The unit status, its screen number,
• Three displayed parameters.
LOCAL OFF
1
On the left the unit status, on the right
the screen number
Room temperature
Description of the first parameter
ROOMT
Abbreviation and value with unit of
measurement of the first parameter
25.3°C
Control point
CTRL_PNT
Description of the second parameter
22.5°C
Abbreviation and value with unit of
measurement of the second parameter
Percent total capacity
Description of the third parameter
CAP_T
Abbreviation and value with unit of
measurement of the third parameter
50%
Pressing the Up or Down key changes one default screen
to another default screen. The screen number is updated.
4.3 - Password screens
Enter password
Description of the password entry
screen
0_**
(0 = basic access)
Password value
Description
The password is entered digit by digit. The cursor is shown
at the current digit that flashes. The arrow keys modify the
digit value. The digit modification is validated with the
Enter key and the cursor is moved to the next digit.
The first digit is 1, the cursor is
positioned on the second digit
(0 = basic access)
Enter password
11_**
(0 = basic access)
Pressing the Enter key at a digit without value validates the
overall selection of the password. The screen is refreshed
by the menu list, and the items displayed depend on the
level of the activated password.
The entry of an incorrect password keeps the password
entry screen.
Password selection 0 (zero) can simply be made by pressing
the Enter key twice in succession.
4.4 - Menu screen characteristics
\\MAINMENU
Current path in the menu structure
GENUNIT
ALARMS
TEMP
RUNTIME
PRESSURE
MODES
SETPOINT
LANGUAGE
INPUTS
LOGOUT
Selection cursor to the left of the first
column
Menu list
OUTPUTS
General Parameters Menu
Description of the menu framed by
the selection cursor
Each menu item defines the access to categorised data. The
Up and Down arrows position the cursor at the current item.
The Enter key activates the display of the selected sub-menu.
The item LOGOUT permits exiting from the menu screen
and protects access by a user password. The “Previous” key
permits exiting from the current screen without deactivating
the password-protected access.
4.5 - Data screen or configurable parameter
characteristics
The data screens display information parameters such as
temperatures or pressures. The configuration screens display
unit control parameters such as the air temperature setpoints.
7
\\MAINMENU\TEMP
ROOMT
SPOFFSET
25.3°C
0.3^C
OAT
35.0°C
SAT
19.2°C
SCT_A
57.0°C
Room Setpoint Offset
Current path in the menu structure
List of items
Cursor position
Description of the item framed by
the selection cursor
The Up and Down arrow keys position the cursor on the
current menu item. The Enter key activates the parameter
modification (if possible). Any non-pertinent modification
attempt is blocked by a refusal screen.
ATTENTION: If the user exits from the current data screen,
the value is saved. A saving confirmation is displayed.
The Enter key validates the parameter modification(s).
The Return to the Previous Screen key cancels the current
modification(s).
\\MAINMENU\SETPOINT
Current path in the menu structure
Save changes?
Confirmation that the modification is
saved
4.6 - Parameter modification
4.7 - Operating mode screen
A configuration parameter can be modified by positioning
the cursor and then pressing the Enter key.
The unit is in Local Off mode, pressing the on/off (0/1) key
once activates the display of the operating mode screen.
\\MAINMENU\SETPOINT
Current path in the menu structure
roomtocc
21.0°C
roomtuno
28.0°C
List of items
satmin
14.0°C
satmax
30.0°C
potreset
3^C
Room T, unoccupied
Cursor position
Description of the item framed by
the selection cursor
roomtuno
28.0
°C
_
°C
Room T, unoccupied
Description of the screen
Local On
List of the machine operating
modes
Local Schedule
Cursor
CCN
Remote
The following screen allows modification of a parameter.
Modify value
Select Machine Mode
Screen description
Current value
Cursor position
The Up and Down keys position the cursor on the selected
operating mode. Four modes are immediately displayed on
the screen. To access operating modes that are not visible,
please use the Up and Down keys.
When the operating mode has been selected, the new
operating mode can be validated with the Enter key.
Command accepted
Operating mode validation screen
Item description
The Up and Down arrow keys permit the selection of the
first digit. Pressing the Up key successively scrolls up to
the following symbols:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ., -.
When the unit is in an operating mode and the On/off key
is pressed, the unit will stop. A confirmation screen protects
the unit against inadvertent shutdowns.
The Down key follows the reverse order of the Up key in
scrolling down the digit list above. Each digit is validated
with the Enter key.
The - sign is only accessible for the first selected character.
Modify value
28.0
27.5_
Room T, unoccupied
roomtuno
°C
°C
Description of the screen
Current value
Cursor position
Item description
The value is validated with the Enter key. At any time the
return key cancels the current modification.
8
PRESS ENTER
TO CONFIRM STOP
Machine shutdown confirmation
screen
NAVIGATION
NAVIGATION
DEFAULT
ECRANS
SCREENS
PAR
DEFAUT
CONFIGURABLE
ALL
TOUS
USER
UTILISATEUR
ACCESS
ACCES
PASSWORD
MOT DE
PASSE
Already connected
Disconnection
LOGOUT
Configuration menu
CONFIG
CONFIG
Alarms menu
ALARMS
ALARMS
Setpoint
SETPOINT
MODES
Menu modes
MODES
RUNTIME
RUNTIME
OUTPUTS
Operating temperatures
Output status
OUTPUTS
INPUTS
Input status
Alarm history
ALMHIST1
ALMHIST1
Active alarms
INPUTS
Pressures
CUR_ALRM
CUR_ALRM
Alarm reset
ALARMRST
ALARMRST
PRESSURE
PRESSURE
Temperatures
TEMP
TEMP
General parameters
GENUNIT
GENUNIT
Control identification
CTRL_ID
DISPLAY
Interface configuration
DISPLAY
DATETIME
Date/time control
DATETIME
USERCONF
CCN broadcast config.
BRODCAST
BRODCAST
Holiday planning
HOLIDAY
HCCONFIG
Time schedules
SCHEDULE
HOLIDAY
User parameters
USERCONF
SCHEDULE
General configuration
GEN_CONF
GENCONF
(seulement
(for mainpour
l'interface
principale)
interface
only)
LISTE
DES
LIST OF
OPERATING
MODES
D'EXPLOITATION
SHUTDOWN
ECRAN DE
CONFIRMATION
DE
SCREEN
L'ARRET
CCN broadcast
BROCASTS
BRODCAST
Holidays 16
HOLIDY16S
HOLIDY16S
…
…
Holidays 1
HOLIDY01S
Schedule 2
OCC1P02S
OCC1P02S
Schedule 1
OCC1P01S
OCC1P01S
4.8 - Menu tree structure
9
4.9 - Detailed menu description
ATTENTION: Depending on the unit characteristics, certain menu items are not used.
4.9.1 - GENUNIT menu
NAME
FORMAT
UNIT
DESCRIPTION
ctrl_typ
0/1/2
-
STATUS
-
-
Alarm status
min
-
Start-up delay
Heating/cooling status (not used)
LOCAL_HC
HC_SEL
STATUS = 0 --> Off
STATUS = 1 --> Running
STATUS = 2 --> Stopping
STATUS = 3 --> Delay
STATUS = 4 --> Tripout
STATUS = 5 --> Ready
STATUS = 6 --> override
STATUS = 7 --> defrost
STATUS = 8 --> FreeCool
STATUS = 9 --> RunTest
STATUS = 10 --> Test
ALM = 0 --> Normal
ALM = 1 --> Partial
ALM = 2 --> Shutdown
HEATCOOL = 0 --> Cool
HEATCOOL = 1 --> Heat
HEATCOOL = 2 --> Standby
HEATCOOL = 3 --> Both
0/1/2
0/1/2
Control mode type
0 = Control via local interface
1 = Control via CCN network
2 = Control via volt-free contacts
Operating status
-
LSP_SEL
SP_SEL
SP_OCC
CHIL_S_S
CHIL_OCC
0/1/2
0/1/2
No/Yes
Disable/Enable
No/Yes
-
Heating/cooling selection via the main interface (not used)
Heating/cooling selection via the CCN network 0 = cooling, 1 = heating, 2 = auto (not
used)
Setpoint selection via the main interface
Setpoint selection via the CCN network 0 = Auto 1 = Setpoint 1, 2 = Setpoint 2
Selection of setpoint 1, occupied mode
Operation demand from the CCN bus
Occupancy demand from the CCN bus
ALM
min_left
HEATCOOL
CAP_T
CAPA_T
CAPB_T
DEM_LIM
SP
CTRL_PNT
EMSTOP
0 to 100
0 to 100
0 to 100
0 to 100
-20 to 67.2
Disable/Enable
%
%
%
%
°C
°C
-
Total capacity in %
Capacity circuit A in %
Capacity circuit B in %
Current capacity limit
Current setpoint
Final control point
Emergency stop
SCT_A
SST_A
DEFR_T_1
SUCT_A
FORMAT
-50 to 50
-50 to 50
-50 to 50
-
UNIT
°C
^C
°C
°C
°C
°C
°C
°C
SCT_B
SST_B
DEFR_T_2
SUCT_T_B
-
°C
°C
°C
°C
DESCRIPTION
Room temperature
Room temperature setpoint offset
Outdoor temperature
Supply air temperature
Refrigerant circuit temperature
Circuit A
Saturated condensing temperature
Saturated evaporating temperature
Defrost temperature 1 (not used)
Compressor suction temperature
Circuit B
Saturated condensing temperature
Saturated evaporating temperature
Defrost temperature 2 (not used)
Compressor suction temperature
UNIT
kPa
kPa
kPa
kPa
DESCRIPTION
Discharge pressure, circuit A
Suction pressure, circuit A
Discharge pressure, circuit B
Suction pressure, circuit B
4.9.2 - TEMP menu
NAME
ROOMT
SPOFFSET
OAT
SAT
4.9.3 - PRESSURE menu
NAME
DP_A
SP_A
DP_B
SP_B
10
FORMAT
-
4.9.4 - SETPOINT menu
NAME
roomtocc
roomtuno
satmin
satmax
potreset
oat1_cor
corlooat
oat2_cor
corhioat
oat_cor
lim_sp1
lim_sp2
lim_sp3
FORMAT
15 to 30
5 to 35
10 to 18
25 to 35
0 to 3
-20 to 14
-5 to 0
15 to 35
0 to 5
No/Yes
0 to 100
0 to 100
0 to 100
DEFAULT
21.05
28
14
30
3
-10
-2
30
2
no
100
100
100
UNIT
°C
°C
°C
°C
^C
°C
^C
°C
^C
%
%
%
DESCRIPTION
Room temperature setpoint in occupied mode
Room temperature setpoint in unoccupied mode
Minimum supply air temperature
Maximum supply air temperature
Maximum room air setpoint reset
OAT threshold 1
Correction if OAT < oat1
OAT threshold 2
Correction if OAT > oat2
Setpoint reset based on OAT
Capacity limit 1
Capacity limit 2
Capacity limit 3
UNIT
-
DESCRIPTION
Indoor fan reversal, start/stop
Contact stage 1
Contact stage 2
Contact stage 3
Contact stage 4
Customer contact status (safety loop)
Alarm reset demand
Remote contact for heating/cooling mode selection (not used)
Current control
Remote contact for setpoint 1 selection, occupied mode
Status limit contact 1 (not used)
Status limit contact 2 (not used)
Start of occupied mode
UNIT
%
%
-
DESCRIPTION
Output compressor 1
Output compressor 2
Output compressor 3
Fan output A1
Fan output A2
Fan variator output A
Four-way valve
Liquid line valve A1
Liquid line valve A2
Output compressor 1
Output compressor 2
Fan output B
Fan variator output B
Four-way valve
Liquid line valve B1
Liquid line valve B2
Indoor fan control
Alarm LED status
Alarm relay status
Unit operation status
UNIT
hours
-
DESCRIPTION
Number of unit operating hours
Number of start-ups, unit
4.9.5 - INPUTS menu
NAME
ONOFF_SW
STAGE_1
STAGE_2
STAGE_3
STAGE_4
LOCK
AL_RESET
HC_SW
on_ctrl
SP_SW
LIM_SW1
LIM_SW2
OCC_SW
FORMAT
Open/Closed
Open/Closed
Open/Closed
Open/Closed
Open/Closed
Alarm/Normal
Open/Closed
Open/Closed
Open/Closed
Open/Closed
Open/Closed
Open/Closed
4.9.6 - OUTPUTS menu
NAME
CP_A1
CP_A2
CP_A3
fan_a1
fan_a2
HD_POS_A
RV_A
LLS_A1
LLS_A2
CP_B1
CP_B2
fan_b
HD_POS_B
RV_B
LLS_B1
LLS_B2
IN_FAN
ALRM_LED
ALARM
RUNNING
FORMAT
On/Off
On/Off
On/Off
On/Off
Closed/Open
Closed/Open
On/Off
On/Off
On/Off
Closed/Open
Closed/Open
On/Off
On/Off
On/Off
On/Off
4.9.7 - RUNTIME menu
NAME
hr_mach
st_mach
HR_CP_A1
st_cp_a1
HR_CP_A2
st_cp_a2
HR_CP_A3
st_cp_a3
HR_CP_B1
st_cp_b1
HR_CP_B2
st_cp_b2
hr_fana1
hr_fana2
hr_fanb1
st_fana1
st_fana2
st_fanb1
nb_def_a
nb_def_b
FORMAT
-
-
hours
hours
hours
hours
hours
hours
hours
hours
-
Number of operating hours compressor A1
Number of start-ups compressor A1
Number of operating hours compressor A2
Number of start-ups compressor A2
Number of operating hours compressor A3
Number of start-ups compressor A3
Number of operating hours compressor B1
Number of start-ups compressor B1
Number of operating hours compressor B2
Number of start-ups compressor B2
Number of operating hours fan 1, circuit A
Number of operating hours fan 2, circuit A
Number of operating hours fan, circuit B
Number of start-ups fan 1, circuit A
Number of start-ups fan 2, circuit A
Number of start-ups fan 1, circuit B
Number of defrost cycles, circuit A (not used)
Number of defrost cycles, circuit B (not used)
11
4.9.8 - MODES menu
NAME
m_limit
m_night
m_auto
m_defr_a
m_defr_b
m_sst_a
m_sst_b
m_dgt_a
m_dgt_b
m_hp_a
m_hp_b
m_sh_a
m_sh_b
FORMAT
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
No/Yes
UNIT
-
DESCRIPTION
Capacity limit active
Night mode active
Change-over auto active (not used)
Defrost active, circuit A (not used)
Defrost active, circuit B (not used)
Low SST, circuit A
Low SST, circuit B
High DGT, circuit A
High DGT, circuit B
High pressure override, circuit A
High pressure override, circuit B
High superheat, circuit A
High superheat, circuit B
4.9.9 - ALARMS menu
NAME
ALARMRST
CUR_ALRM
ALMHIST1
DESCRIPTION
Alarm reset
Current alarms
Alarm history
4.9.10 - ALARMST menu
NAME
RST_ALM
ALM
alarm_1c
alarm_2c
alarm_3c
alarm_4c
alarm_5c
alarm_1
alarm_2
alarm_3
alarm_4
alarm_5
FORMAT
No/Yes
-
UNIT
-
4.9.11 - CUR_ALRM menu
This menu lists up to ten a active alarms. For each alarm the
display shows the time and date the alarm was generated
as well as the alarm description. Each screen shows one
alarm.
…\ALARMS\CUR_ALM
HH:MM DD-MM-YY : alarm text
Alarm #1
12
DESCRIPTION
Alarm reset
Alarm status
Current alarm 1
Current alarm 2
Current alarm 3
Current alarm 4
Current alarm 5
JBus alarm 1 active
JBus alarm 2 active
JBus alarm 3 active
JBus alarm 4 active
JBus alarm 5 active
4.9.12 - ALMHIST1 menu
This menu lists up to twenty alarms that have occurred at
the unit. For each alarm the display shows the time and date
the alarm was generated as well as the alarm description.
Each screen shows one alarm.
…\ALARMS\ALMHIST1
HH:MM DD-MM-YY : alarm text
Alarm #1
4.9.13 - GEN_CONF menu
NAME
capactrl
FORMAT
0 to 1
DEFAULT
0
UNIT
-
ifan_occ
Auto/On
On
-
ifanunoc
Auto/On
Auto
-
lead_cir
seq_typ
off_on_d
nh_limit
nh_start
nh_end
auto_sel
0 to 2
No/Yes
1 to 15
0 to 100
No/Yes
0
No
1
100
0
0
No
min
%
-
heat_th
-20 to 0
-15
°C
bas_menu
0 to 3
0
-
DESCRIPTION
Capacity control mode selection
0 = thermostat control, 2 to 4 contacts
1 = room temperature sensor control with minimum supply air
temperature control
Indoor fan control type during occupied mode
Auto = fan "On" if capacity > 0%
On = fan always active
Indoor fan control type during unoccupied mode
Auto = fan “On” if capacity > 0%
On = fan always active
Master circuit selection 0 = Auto, 1 = circuit A, 2 = circuit B
Circuit loading stage
Start-up delay
Night capacity limit value
Night mode start hour
Night mode stop hour
Automatic heating/cooling mode selection
(function not available in this software version)
OAT threshold for heating mode (function not available in this
software version)
Configuration of access rights to the “Alarms” and “Setpoints” menus
0 = No access to these menus without password
1 = Access without password to the “Alarms” menu
2 = Access without password to the “Setpoints” menu
3 = Access without password to both menus
4.9.14 - USERCONF menu
NAME
language
FORMAT
0 to 5
DEFAULT
0
UNIT
-
use_pass
extratim
1 to 9999
0 to 4
11
1
hours
DESCRIPTION
Language selection
0 = English, 1= Spanish, 2 = French, 3 = German, 4 = Italian, 5 =
Other language
User password
Occupied mode start duration
4.9.15 - BROCASTS menu
NAME
ccnbroad
FORMAT
0/1/2
DEFAULT
2
UNIT
-
oatbusnm
0 to 239
0
-
oatlocad
dayl_sel
Summer time
startmon
startdow
startwom
Winter time
stopmon
stoptdow
stopwom
0 to 239
Disable/Enable
0
Disable
-
DESCRIPTION
Activates the broadcast
0 = deactivated, 1= broadast during holidays at the network, 2 =
broadcast during holidays, machine only
Broadcast of the outside temperature
Bus number of the machine with the outside temperature
Element number of the machine with the outside temperature
Activation summer time, winter time
1 to 12
1 to 7
1 to 5
3
7
5
-
Month
Day of the week (1 = Monday)
Week of the month
1 to 12
1 to 7
1 to 5
10
7
5
-
Month
Day of the week (1 = Monday)
Week of the month
DEFAULT
UNIT
hours
minutes
No
No
-
DESCRIPTION
Hour
Minutes
Day of the week
Holiday tomorrow?
Holiday today
Winter time change-over active?
Summer time change-over active?
Day of the month
Month
Year
DEFAULT
1
0
9600
Pro-Dialog+
38RBS
CSA-SR-20H430NN
-
UNIT
-
4.9.16 - DATETIME menu
NAME
hour
minutes
dow
tom_hol
tod_hol
dlig_off
dlig_on
d_of_m
month
year
FORMAT
0 to 24
0 to 59
1 to 7
No/Yes
No/Yes
No/Yes
No/Yes
1 to 31
1 to 12
0 to 99
4.9.17 - CTRL_ID menu
NAME
elemt_nb
bus_nb
baudrate
FORMAT
1 to 239
0 to 239
9600 to 38400
DESCRIPTION
Element number
Bus number
Communication speed
Description
Software version
Serial number
13
4.9.18 - OCC1PSX menu
The control provides two timer programs: schedule 1 and
schedule 2 that can be activated.
The first timer program (schedule 1) provides a means to
automatically switch the unit from an occupied mode to an
unoccupied mode: the unit is started during occupied periods.
If the auto mode is selected, the second timer program
(schedule 2) provides a means to automatically switch the
active setpoint from an occupied setpoint to an unoccupied
setpoint.
Each schedule consists of eight time periods set by the
operator. These time periods can be flagged to be active or
not on each day of the week plus a holiday period. The day
begins at 00.00 hours and ends at 23.59 hours.
Program is in unoccupied mode unless a schedule time period
is active. If two periods overlap and are both active on the
same day, the occupied mode takes priority over the
unoccupied period.
Each of the eight periods can be displayed and changed
with the aid of a sub-sub-menu. The table on page 17 shows
how to access the period configuration. Method is the same
for the time schedule 1 or the time schedule 2.
NAME
OVR_EXT
DOW1
FORMAT
0-4
0/1
DEFAULT
0
11111111
UNIT
hours
-
OCCTOD1
UNOCTOD1
DOW2
0:00-24:00
0:00-24:00
0/1
00:00
24:00:00
0
-
OCCTOD2
UNOCTOD2
DOW3
0:00-24:00
0:00-24:00
0/1
00:00
00:00
0
-
OCCTOD3
0:00-24:00
00:00
-
UNOCTOD3
DOW4
0:00-24:00
0/1
00:00
0
-
OCCTOD4
UNOCTOD4
DOW5
0:00-24:00
0:00-24:00
0/1
00:00
00:00
0
-
OCCTOD5
UNOCTOD5
DOW6
0:00-24:00
0:00-24:00
0/1
00:00
00:00
0
-
OCCTOD6
UNOCTOD6
DOW7
0:00-24:00
0:00-24:00
0/1
00:00
00:00
0
-
OCCTOD7
UNOCTOD7
DOW8
0:00-24:00
0:00-24:00
0/1
00:00
00:00
0
-
OCCTOD8
UNOCTOD8
0:00-24:00
0:00-24:00
00:00
00:00
-
14
Time schedule type:
Time
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
MON TUE WES THU
FRI
SAT SUN HOL
P1
P1
P1
P2
P2
P3
P4
P4
P5
P2
P2
P3
P4
P4
P5
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P2
P3
P3
P3
P3
P3
P3
P3
P3
P3
P4
P4
P4
P4
P4
P4
P4
P4
P4
P4
P4
P4
P5
MON:
Monday
TUE:
Tuesday
WED:
Wednesday
THU:
Thursday
FRI:
Friday
SAT:
Saturday
SUN:
Sunday
HOL:
Holiday
P5
P5
P4
P4
P4
P4
P3
P3
P3
P6
Occupied
Unoccupied
P1: period 1,
P2: period 2,
P3: period 3,
P4: period 4,
P5: period 5,
P6: period 6,
P7: period 7,
P8: period 8,
Starts at
Stops at
0h00,
3h00,
7h00,
18h00,
7h00,
21h00,
7h00,
17h00,
7h00,
12h00,
20h00,
21h00,
Not used in this example
Not used in this example
Active on
Monday
Monday + Tuesday
Wednesday
Thursday + Friday
Saturday
Holidays
DESCRIPTION
Occupied schedule override
Period 1 day of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 2 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 3 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 4 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 5 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 6 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 7 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
Period 8 days of the week MTWTFSSH
Monday Tuesday Wednesday Thursday Friday Saturday Sunday Holiday
Occupied from
Occupied until
4.9.19 - HOLIDY0XS menu
This function is used to define 16 public holiday periods.
Each period is defined with the aid of three parameters:
the month, starting day and duration of the public holiday
period. During these public holidays the controller will be in
occupied or unoccupied mode, depending on the programmed
periods validated for public holidays.
ATTENTION: The broadcast function must be activated
to utilise the holiday schedule, even if the unit is running
in stand-alone mode (not connected to CCN).
Each of these public holiday periods can be displayed and
changed with the aid of a sub-menu.
NAME
HOL_MON
HOL_DAY
HOL_LEN
FORMAT
0-12
0-31
0-99
DEFAULT
0
0
0
5 - PRO-DIALOG PLUS CONTROL OPERATION
5.1 - Start/stop control
The table below summarises the unit control type and stop
or go status with regard to the following parameters.
• Operating type: this is selected using the start/stop
button on the front of the user interface.
LOFF: local off, L-C: local on, L-SC: local schedule,
REM: remote, CCN: network
• Remote start/stop contact: this contact is used when
the unit is in remote operating type (Remote).
• CHIL_S_S: this network command relates to the unit
start/stop when the unit is in network mode (CCN).
ACTIVE OPERATING TYPE
LOFF L-C
L-SC
REM
Active
-
Active
-
Active
Active
-
CCN
-
-
Active
Active
Active
Active
Active
Active
Active
UNIT
-
•
•
•
•
•
PARAMETER STATUS
On/off contact
CHIL_S_S
indoor fan reversed CCN on/off control
Stop
Start
Start
Stop
Start
Start
DESCRIPTION
Holiday month
Holiday day
Holiday duration
Command set to Stop: the unit is halted.
Command set to Start: the unit runs in accordance
with schedule 1.
Time schedule: occupied or unoccupied status of the
unit as determined by the chiller start/stop program
(Schedule 1).
CCN emergency shutdown: if this CCN command is
activated, it shuts the unit down whatever the active
operating type.
General alarm: the unit is totally stopped due to failure.
Time
schedule
Unoccupied
Occupied
Unoccupied
Occupied
Unoccupied
Unoccupied
Occupied
Emergency
CCN stop
Active
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
CONTROL
General alarm TYPE
UNIT STATUS
Yes
No
No
No
No
No
No
No
No
No
Stop
Stop
Stop
Start
Stop
Start
Stop
Stop
Start
Stop
Stop
Stop
Start
Local
Local
Local
Local
Remote
Remote
CCN
CCN
CCN
CCN
15
5.2 - Safety loop
This contact checks the status of a loop (air flow switch
and customer safety loop, see chapter 3.6). It prevents the
unit from starting if it is open when the delay at start-up has
expired. This open contact leads to an alarm shut-down, if
the unit is running.
If correction, based on the outdoor temperature is selected,
it is in accordance with the diagram below.
Setpoint correction = f(OAT)
3
A
1
0
5.3 - Control point
The control point represents the air temperature that the
unit must control.
-1
B
-3
Control point = active setpoint + reset
-20
C
5.3.1 - Active setpoint
Two setpoints can be selected. Usually, the second setpoint
is used for unoccupied periods.
Legend:
A SETPOINT/corhioat
B SETPOINT/corlooat
C SETPOINT/oat1_cor
D SETPOINT/oat2_cor
Depending on the current operating type, the active setpoint
can be selected:
• by choosing the item in the GENUNIT menu,
• via the user’s volt-free contacts,
• via network commands
• via the setpoint timer program (schedule 2).
5.4 - Demand limit
The following table summarises the possible selections
depending on the control types (local, remote or network)
and the following parameters:
• Setpoint select in local control: item LSP_SEL in the
GENUNIT menu permits selection of the active setpoint,
if the unit is in local operating type.
• Setpoint selection contacts: setpoint selection contact
status.
• Schedule 2 status: schedule for setpoint selection.
Parameter status
Active
lsp_sel /
operating type sp_sel
Local
sp1
Local
sp2
Local
auto
Local
auto
Remote
Remote
CCN
CCN
CCN
CCN
Contact
Setpoint
active
-
Status time
schedule 2
Occupied
Unoccupied
Occupied
Unoccupied
Occupied
Unoccupied
-
sp1
sp2
-
Occupied
Unoccupied
sp1
sp2
auto
auto
-
Occupied
Unoccupied
Occupied
Unoccupied
Occupied
Unoccupied
5.3.2 - Reset
Reset means that the active setpoint is modified so that less
machine capacity is required. This modification is in
general a reaction to a drop in the load. For the Pro-Dialog
control system, the source of the reset can be configured in
the SETPOINT menu: it can be provided either by the
outdoor temperature (that gives a measure of the load
trends for the building) or imposed by the user.
In response to a drop in the outdoor temperature or to
user reset, the setpoint is reset to optimise unit performance
or enhance comfort.
16
0
10
OAT, °C
20
D
40
The demand limit is used to restrict the unit power consumption. The Pro-Dialog control system allows limitation of
the unit capacity, using user-controlled volt-free contacts.
The unit capacity can never exceed the limit setpoint activated by these contacts. The limit setpoints can be modified
in the SETPOINT menu.
5.5 - Night mode
The night period is defined (see GENUNIT configuration)
by a start time and an end time that are the same for each
day of the week. During the night period, the number of
fans operating can be reduced, and the unit capacity may
be limited.
5.6 - Capacity control
This function adjusts the number of active compressors to
keep the air temperature at its setpoint. The precision with
which this is achieved depends on the air volume, the flow
rate, the load, and the number of stages available on the unit.
The control system continuously takes account of the
temperature error with respect to the setpoint to determine
the optimal moment at which to add or withdraw a capacity
stage.
If the same compressor undergoes too many starts (per
hour) or runs below one minute each time it is started this
automatically brings about reduction of compressor starts,
which makes the controlled air temperature less precise.
The high and low pressure unloading functions can also affect
temperature control accuracy. Compressors are started and
stopped in a sequence designed to equalise the number of
start-ups (value weighted by their operating time).
5.7 - Indoor fan control
6 - DIAGNOSTICS - TROUBLESHOOTING
This function is only activated if the unit is not controlled
by a thermostat. It starts and stops the indoor fan. The fan
can be activated either continuously or only if any capacity is
applied. The user selects the desired performance configuration in the GEN_CONF menu. The configuration selected
can differ in the occupied mode and unoccupied mode.
6.1 - General
5.8 - Head pressure control
The head pressure is independently controlled for each
circuit, based on the saturated condensing temperature value.
5.9 - High-pressure unloading function
This option does not require an additional board. It permits
avoiding a high-pressure cut-out on a circuit by:
• not allowing any capacity increase on this circuit if the
high-pressure value reaches a first threshold,
• unloading one compressor if a second protection
threshold is reached.
The Pro-Dialog+ control system has many fault tracing aid
functions. The local interface and its various menus give
access to all unit operating conditions. If an operating fault
is detected, an alarm is activated and an alarm code is
stored in the Alarms menu, sub-menus CUR_ALRM and
ALARMRST.
6.2 - Displaying alarms with the alarm LED
The alarm LED on the unit permits an immediate alarm
display. This is followed by a blinking sequence that describes
the alarm code: the first one is for tens’ number, and the
second one for ones’ number.
Example:
Alarm 36 is detected by the Pro-Dialog control, the LED
lights up continuously for 5 seconds, then blinks three times,
stops and blinks six times, stops and continues the cycle.
If a compressor is unloaded, no capacity increase to the
affected circuit is allowed for several minutes.
The Pro-Dialog control permits display of up to five active
unit fault codes.
5.10 - Pumpdown
6.3 - Displaying alarms on the Pro-Dialog+ interface
If a circuit is shut down, it is evacuated to purge the
refrigerant from the evaporator and the suction line.
The alarm LED on the interface (see chapter 4.1) allows
the quick display of the unit status.
• A flashing LED shows that the circuit is operating but
there is an alert.
• A steady LED shows that the circuit has been shut
down due to a fault.
The ALARMRST menu on the main interface displays up
to five fault codes that are active on the unit.
6.4 - Resetting alarms
When the cause of the alarm has been corrected the alarm
can be reset, depending on the type, either automatically
on return to normal, or manually when action has been
taken on the unit. Alarms can be reset even if the unit is
running.
This means that an alarm can be reset without stopping the
machine. In the event of a power supply interrupt, the unit
restarts automatically without the need for an external
command. However, any faults active when the supply is
interrupted are saved and may in certain cases prevent a
circuit or a unit from restarting.
Manual reset must be done with the push button or run from
the main interface via the ALARMRST menu, item RST_
ALM. Depending on the configuration in the GENCONF
menu, access to the item may be protected by a password.
17
6.5 - Alarm codes
Alarm Alarm
No.
code
1
th204
Alarm description
Reset type
Probable cause
Action taken by the control
Room sensor thermistor fault
2
se-01
Setpoint reset fault
3
th-12
4
th-13
5
th-03
6
th-04
7
th-10
8
th202
Suction temperature sensor
fault, circuit A
Suction temperature sensor
fault, circuit B
Defrost sensor fault, circuit A
(not applicable to the control)
Defrost sensor fault, circuit B
(not applicable to the control)
Outdoor temperature sensor
fault
Supply air thermistor fault
9
Pr-01
Defective thermistor, thermistor not
connected, short circuit
Potentiometer not connected,
potentiometer resistance too high
Defective thermistor, thermistor not
connected, short circuit
Defective thermistor, thermistor not
connected, short circuit
Defective thermistor, thermistor not
connected, short circuit
Defective thermistor, thermistor not
connected, short circuit
Defective thermistor, thermistor not
connected, short circuit
Defective thermistor, thermistor not
connected, short circuit
Defective thermistor or wiring fault
Unit is shut down if this sensor is
used
Setpoint reset is no longer
available
Superheat monitoring is no
longer available for this circuit
Superheat monitoring is no
longer available for this circuit
Unit is shut down if this sensor is
used
Unit is shut down if this sensor is
used
Unit is shut down if this sensor is
used
Unit is shut down if this sensor is
used
Circuit is shut down
10
Pr-02
Defective thermistor or wiring fault
Circuit is shut down
11
Pr-04
Defective thermistor or wiring fault
Circuit is shut down
12
Pr-05
Defective thermistor or wiring fault
Circuit is shut down
13
Co-O1
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the value returns to the
normal range
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the temperature measured
by the sensor returns to normal
Automatic when the voltage transmitted by
the sensor returns to normal
Automatic when the voltage transmitted by
the sensor returns to normal
Automatic when the voltage transmitted by
the sensor returns to normal
Automatic when the voltage transmitted by
the sensor returns to normal
Automatic when communication is
re-established
14
CoDr1
15
CoDr2
16
FC-01
17
FC-nO
18
P-05
19
P-06
20
21
22
P-11
P-12
P-16
23
P-17
24
P-18
25
P-20
26
P-21
27
P-204
28
P-31
29
P-37
30
P-38
31
P-40
32
P-41
33
P-63
34
P-64
35
P-100
36
V0-xx
Fan voltage variator fault, circuit Manual or automatic
A
37
V1-xx
Fan voltage variator fault, circuit Manual or automatic
B
18
Discharge pressure sensor
fault, circuit A
Discharge pressure sensor
fault, circuit B
Suction pressure sensor fault,
circuit A
Suction pressure sensor fault,
circuit B
Communication loss with
auxiliary board 1
Communication loss with
frequency variator of fan 1
Communication loss with
frequency variator of fan 2
Illegal factory configuration
number 1 to nn
No factory configuration
Automatic when communication is
re-established
Automatic when communication is
re-established
Automatic when a correct configuration is
entered
Automatic when a correct configuration is
entered
Low suction temperature, circuit Automatic when the temperature returns to
A
normal, and if this alarm has not appeared
during the last 24 hours, otherwise manual.
Low suction temperature, circuit Automatic when the temperature returns to
B
normal, and if this alarm has not appeared
during the last 24 hours, otherwise manual.
Low superheat, circuit A
Manual
Low superheat, circuit B
Manual
Compressor A1 not started or
Manual
no pressure increase registered
Compressor A2 not started or
Manual
no pressure increase registered
Compressor A3 not started or
Manual
no pressure increase registered
Compressor B1 not started or
Manual
no pressure increase registered
Compressor B2 not started or
Manual
no pressure increase registered
No air flow or customer safety
Manual
loop open
Unit emergency stop
CCN
Repeated overrides, high
discharge temperature, circuit
A
Repeated overrides, high
discharge temperature, circuit
B
Repeated exceeded low
suction temperature, circuit A
Repeated exceeded low
suction temperature, circuit B
High pressure switch fault,
circuit A
High pressure switch fault,
circuit B
Incorrect indoor fan status
Automatic
Automatic
Automatic
Automatic
Manual and the high pressure switch must
be manually reset
Manual and the high pressure switch must
be manually reset
Automatic
Defective auxiliary board or wiring fault Depending on configuration,
compressor A3 shut down, circuit
B shout down or unit shut down
Defective variator or wiring fault
The circuit using this fan is shut
down
Defective variator or wiring fault
The circuit using this fan is shut
down
Incorrect configuration
Unit is shut down
No configuration (unit size)
Unit is shut down
Defective pressure sensor, TXV
blocked or refrigerant charge too low
Circuit is shut down
Defective pressure sensor, TXV
blocked or refrigerant charge too low
Circuit is shut down
Defective sensor, TXV blocked
Defective sensor, TXV blocked
Defective compressor or wiring fault
Circuit is shut down
Circuit is shut down
Compressor is shut down
Defective compressor or wiring fault
Compressor is shut down
Defective compressor or wiring fault
Compressor is shut down
Defective compressor or wiring fault
Compressor is shut down
Defective compressor or wiring fault
Compressor is shut down
Safety loop open, pressure switch fault,
air flow or wiring fault
An emergengy stop command has
been issued by the CCN
Defective transducer, condenser air
temperature too high, condenser
fouled or fan air flow too low.
Defective transducer, condenser air
temperature too high, condenser
fouled or fan air flow too low.
Defective pressure sensor or
refrigerant charge too low
Defective pressure sensor or
refrigerant charge too low
Fan circuit fault, air or condenser
temperature too high
Fan circuit fault, air or condenser
temperature too high
Thermostat transmits a cooling stage
demand when the indoor fan is shut
down
Variator fault or alert
Unit is shut down
Variator fault or alert
Unit is shut down
Signalling
Signalling
Circuit is shut down
Circuit is shut down
Circuit is shut down
Circuit is shut down
Unit is shut down
Alert: circuit continues to operate,
variator slows the motor down
Alarm: circuit is shut down
Alert: circuit continues to operate,
variator slows the motor down
Alarm: circuit is shut down
Order No. 13869-76, 06.2012. Supersedes order No.: New.
Manufacturer reserves the right to change any product specification without notice.
Manufactured by: Carrier SCS, Montluel, France.
Printed in the European Union.
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