Carrier Aquaforce 30XA Series User manual

CONTROLS MANUAL
Operation instructions
Original document
Touch Pilot Control
AquaForce ® PUREtec with R-1234ze(E)
30XA/XAS/XW
30XA-ZE/XW-ZE

2
CONTENTS
1 - SAFETY CONSIDERATIONS................................................................................................................................ 5
1.1 - General description................................................................................................................................................... 5
1.2 - Safety precautions ..................................................................................................................................................... 5
2 - CONTROLLER OVERVIEW ................................................................................................................................. 5
2.1 - General description................................................................................................................................................... 5
2.2 - Abbreviations ............................................................................................................................................................ 5
3 - HARDWARE DESCRIPTION ............................................................................................................................... 6
3.1 - General description................................................................................................................................................... 6
3.2 - Electrical box ............................................................................................................................................................. 6
3.3 - Light emitting diodes on boards.............................................................................................................................. 6
3.4 - Power supply to boards............................................................................................................................................. 6
3.5 - Light emitting diodes on boards.............................................................................................................................. 6
3.6 - Pressure sensors......................................................................................................................................................... 7
3.7 - Temperature sensors ................................................................................................................................................. 7
3.8 - Actuators.................................................................................................................................................................... 7
3.9 - Connections at the user terminal block.................................................................................................................. 8
4 - TOUCH PILOT CONTROL INTERFACE........................................................................................................... 9
4.1 - General description................................................................................................................................................... 9
4.2 - Screens overview ....................................................................................................................................................... 9
4.3 - Start/Stop screen...................................................................................................................................................... 10
4.4 - Main menu ............................................................................................................................................................... 10
4.5 -  ................................................................................................................................................ 11
5 - WEB CONNECTION.............................................................................................................................................. 13
5.1 - Web interface access ............................................................................................................................................... 13
5.2 -  .................................................................................................................................... 13
5.3 - Technical documentation access............................................................................................................................ 13
6 - TOUCH PILOT INTERFACE DETAILS............................................................................................................ 14
6.1 - Menu structure ........................................................................................................................................................ 14
6.2 - Detailed menu description..................................................................................................................................... 15
6.3 - Alarms menu ........................................................................................................................................................... 20
6.4 -  ................................................................................................................................................ 21
7 - TOUCH PILOT CONTROL OPERATION........................................................................................................ 24
7.1 - Start/Stop control ................................................................................................................................................... 24
7.2 - Unit stop function ................................................................................................................................................... 24
7.3 - Pumps control.......................................................................................................................................................... 25
7.4 - Condenser water pump control ............................................................................................................................. 25
7.5 - Heating/Cooling selection...................................................................................................................................... 25
7.6 - Control point............................................................................................................................................................ 26
7.7 - Capacity limitation.................................................................................................................................................. 27
7.8 - Current limitation.................................................................................................................................................... 27
7.9 - Capacity control ...................................................................................................................................................... 27
7.10 - Night mode............................................................................................................................................................. 27
7.11 - Head pressure control........................................................................................................................................... 28
7.12 - Circuit lead/lag selection (multi-circuit units) ................................................................................................... 28
7.13 - Compressor loading sequence (multi-circuit units) .......................................................................................... 28
7.14 - Circuit capacity loading sequence ....................................................................................................................... 28
7.15 - Master/slave assembly .......................................................................................................................................... 30
7.16 - Heat reclaim option (30XA)................................................................................................................................ 30
7.17 - Energy management module............................................................................................................................... 30
7.18 - Variable speed fans (option 17)........................................................................................................................... 31

3
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.
7.19 - Evaporator heater option (30XA) ..................................................................................................................... 31
7.20 - Free cooling option (30XA)................................................................................................................................. 31
7.21 - Dry cooler option (30XW)................................................................................................................................... 31
7.22 - Hydronic kit option (30XA) ................................................................................................................................ 31
7.23 - 30XA-ZE and 30XW-ZE units (HFO)............................................................................................................... 31
7.24 - High condensing temperature option (30XW).................................................................................................. 31
7.25 - Maximum condenser leaving water temperature option (30XW) .................................................................. 31
7.26 - Time schedule function......................................................................................................................................... 32
7.27 - Black box function ................................................................................................................................................ 32
7.28 - Trending.................................................................................................................................................................. 32
8 - DIAGNOSTICS – TROUBLESHOOTING......................................................................................................... 33
8.1 -  ................................................................................................................................................. 33
8.2 - Displaying alarms.................................................................................................................................................... 33
8.3 - Current alarms......................................................................................................................................................... 33
8.4 - Resetting alarms...................................................................................................................................................... 33
8.5 - Alarm history........................................................................................................................................................... 33
8.6 - Alarm codes ............................................................................................................................................................. 34

4
PREFACE
The goal of this document is to give a broad overview of the
main functions of theTouch Pilot system used to control 30XAS
single-circuit air-cooled liquid chillers, 30XA dual-circuit and
triple-circuit air-cooled liquid chillers and 30XW single-circuit
and dual-circuit water-cooled chillers. The manual also refers
to units that come with R-1234ze refrigerant (30XA-ZE air-
cooled and 30XW-ZE water-cooled chillers).
Instructions in this manual are given as a guide to good
practice in the installation, start-up and operation of the
control system. This document does not contain full service
procedures for the correct operation of the equipment. The

recommended to ensure optimal operation of the equipment
as well as the optimization of all available functionalities.
Note that this document may refer to optional components
and certain functions, options or accessories may not be

illustration and form no part of any offer for sale or any sale
contract.
IMPORTANT: All screenshots of the interface provided in this
manual include text in English. After changing the language
of the system, all labels will be displayed in the language
selected by the user.
Please read all instructions prior to proceeding
withany work.Pay attentionto all safety warnings.
The information provided herein is solely for the purpose of
allowing customers to operate and service Carrier-
manufactured equipment and it is not to be reproduced,
  
consent of Carrier Corporation.

5
SAFETY CONSIDERATIONS
1.1 - General description
Installation, start-up and servicing of equipment can be
hazardous if certain factors particular to the installation are
not considered: operating pressures, electrical components,
voltages and the installation site (elevated plinths and built-
up structures).
Only qualified installation engineers and fully trained
technicians are authorised to install and start the equipment.
All instructions and recommendations provided in the service
guide, installation and operation manuals, as well as on tags
     
accompanying parts supplied separately, must be read,
understood and followed. Failure to comply with the
instructions provided by the manufacturer may result in
injury or product damage.
• Apply all safety standards 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 - Safety precautions
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 should be shut off before any work
is begun. Shut off the main power supply at the main circuit
breaker or isolator.
CAUTION: The equipment uses and emits electromagnetic
signals. Tests have shown that the equipment conforms to all
applicablecodes with respectto electromagnetic compatibility.
RISK OF ELECTROCUTION: Even when the main circuit
breaker or isolator is switched off, specic circuits may still be
energised as they may be connected to a separate power source.
RISK OF BURNS: Electrical currents may cause components
to get hot.Handle power cable, electrical cables and conduits,
terminal box covers and motor frames with great care.
IMPORTANT: Some specic safety precautions should be
taken in case of HFO units.
For more information about handling the equipment safely,
please refer to the IOM Unit documentation (Installation,
Operation and Maintenance instructions).
CONTROLLER OVERVIEW
2.1 - General description
The Touch Pilot system controls the start-up of the
compressors needed to maintain the desired heat exchanger
entering and leaving water temperature. The controller
manages the operation of the fans in order to maintain the
correct condensing pressure in each circuit. Touch Pilot
constantly monitors safety devices that protect the unit
against failure and guarantee its optimal functioning.
The control system can operate in three independent modes:
• Local mode: The unit is controlled by commands from
the user interface.
• Remote mode: The unit is controlled by dry contacts.
• Network mode: The unit is controlled by network
commands (CCN or BACnet). Data communication
cable is used to connect the unit to the CCN
communication bus.
The operating mode can be selected with the Start/Stop
button (see also section 4.3). When the Touch Pilot system
operates autonomously (Local or Remote), it retains all of
its control capabilities but does not offer any of the features
of the Network. The Network emergency stop command
stops the unit regardless of its active operating type.
2.2 - Abbreviations
In this manual, the refrigeration circuits are called circuit A,
circuit B and circuit C.
CCN Carrier Comfort Network
EMM Energy Management Module
EXV Electronic Expansion Valve
LED Light Emitting Diode
LEN Sensor Bus (internal communication bus linking the basic
board to slave boards)
OAT Outdoor Air Temperature
Network mode Operating type: Network
 Operating type: Local O
Local-On Operating type: Local On mode
Local-Schedule Operating type: Local On following a time schedule
Master mode Operating type: master unit (master/slave assembly)
Remote mode Operating type: by remote contacts
VFD Variable Frequency Drive

6
HARDWARE DESCRIPTION
3.1 - General description

manage all inputs and outputs of the controller.TCPM board
is used to control the operation of screw compressors and
AUX1board is used for fans control (one AUX1 per each
circuit). Options such as energy management, heat reclaim,
free cooling require additional SIOB boards to be installed.

AUX1 board used to control the optional dry cooler.
All boards communicate via an internal LEN bus. The main
board continuously monitors the information received from
various pressure and temperature probes and accordingly
starts the program that controls the unit.
The unit is equipped with the Touch Pilot user interface (5-
inch colour LCD touch screen).
3.4 - Power supply to boards
All boards are supplied from a common 24 VAC supply
referred to earth.
CAUTION: Maintain correct polarity when connecting the
power supply to the boards, otherwise the boards may be
damaged.
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 given circuit or
the unit from restarting.
Legend:
1. USB connector
2. Ethernet connector
3. CCN connector
4. LEN connector
5. Power supply
connector (24 VAC)
1 2 3 4 5
3.3 - Light emitting diodes on boards
Connections are located on the bottom side of the main
controller.
3.2 - Electrical box
The electrical box includes all boards controlling the unit
and the user interface.
3.5 - Light emitting diodes on boards
All boards continuously check and indicate the proper
operation of their electronic circuits. A light emitting diode
(LED) lights on each board when it is operating properly.
 
SIOB board indicates correct operation. A different
rate indicates a board or a software failure.
 
show that the board is communicating correctly over

indicates a LEN bus wiring problem.

7
3.6 - Pressure sensors
Two types of electronic sensors (high and low pressure) are used
to measure various pressures in each circuit.
These electronic sensors deliver 0 to 5 VDC.The sensors are
connected to the SIOB board.
Discharge pressure sensors (high pressure type)
These sensors measure the discharge pressure in each circuit.
They are used to control head pressure or high pressure load
shedding. Discharge pressure sensors are mounted on the
discharge line piping of each circuit.
Suction pressure sensors (low pressure type)
These sensors measure the suction pressure in each circuit.
They are used for EXV control. Suction pressure sensors are
located on the suction piping of each circuit.
Oil pressure sensors (high pressure type)
These sensors measure the oil pressure of each compressor.
Oil pressure sensors are located at the oil port of the
compressor.The economizer pressure is subtracted from this
value to arrive at the differential oil pressure.
Economizer pressure sensors (high pressure type)
These sensors measure the intermediate pressure between
high and low pressure.They are used to control the economizer
performance.
Heat reclaim condenser outlet pressure sensors (optional)
These sensors (for air-cooled units with heat reclaim option)
permit control of the load in the heat reclaim mode (see also
section 7.16).
3.7 - Temperature sensors
Temperature sensors constantly measure the temperature of
various components of the unit, ensuring the correct operation
of the system.
Evaporator entering and leaving water temperature sensors
The evaporator entering and leaving water temperature sensors
are installed in the entering and leaving side water box.They are
used for capacity control and safety purposes.
Condenser entering and leaving water temperature sensors
These sensors measure the entering and leaving water
temperatures in water-cooled units or air-cooled units with the
heat reclaim option.
Suction gas temperature sensor
This sensor is used to control the suction gas temperature. It is
located at the suction line of each compressor.
Discharge gas temperature sensor
This sensor is used to control the discharge gas temperature,and
permits control of the discharge superheat temperature. It is
located at the discharge line of the compressor.
Motor temperature sensor
This sensor is used to control the motor temperature of each
compressor.
Oil temperature sensor
This sensor is used to control the oil temperature of each
compressor.
Temperature setpoint reset sensor
This 4-20 mA sensor can be installed remotely from the unit. It
is used to reset the setpoint on the unit.
Outdoor temperature sensor
This sensor is mounted on the control box of air-cooled units.
Outdoor temperature sensor is used for start-up, setpoint
temperature reset and frost protection control.
Master/slave water sensor (optional)
The water temperature sensor is used for master/slave assembly
control.
3.8 - Actuators
Evaporator pumps
The controller can regulate one or two evaporator pumps
and takes care of the automatic changeover between these
pumps (see also section 7.3).
Condenser pump
In water-cooled units the controller can regulate one condenser
pump.
Electronic expansion valve
The electronic expansion valve (EXV) is used to adjust the
         

up or down to vary the cross-section of the refrigerant path. This
piston is driven by an electronically controlled linear stepper motor.
The high degree of accuracy with which the piston is positioned

Water ow switch





condition shuts off the unit.

8
3.9 - Connections at the user terminal block
Connections available at the user terminal block may vary
depending on the selected options.
Terminal block connections
Description Board Input/Output Connector Remarks
On/O switch SIOB, circuit A DI-01 J1 Used for the unit on/o control if the unit is in Remote mode
Second setpoint switch SIOB, circuit A DI-02 J1 The contact is taken into consideration if the unit is in Remote mode
Demand limit switch 1 SIOB, circuit A DI-03 J1 Used to control demand limit. See section 7.7
Heat cool select status SIOB, circuit A DI-04 J1 Used to select heat cool mode
Condenser ow status (30XW only) SIOB, circuit A DI-08 J1 Used to control the condenser status
Setpoint reset control SIOB, circuit A AI-10 J9 Allows the customer to reset the currently selected setpoint
Alarm relay SIOB, circuit A DO-05 J23 Indicates alarms
Running relay SIOB, circuit A DO-06 J22 Indicates if the unit is ready to start or operating
Optional
Occupancy override SIOB, EMM DI-01 J1 Enables to switch between occupied (closed contact) and
unoccupied mode (open contact)
Demand limit switch 2 SIOB, EMM DI-02 J1 Used to control demand limit. See section 7.7
Customer interlock SIOB, EMM DI-03 J1 Used for the customer safety loops
Ice done contact SIOB, EMM DI-04 J1 Used to control the setpoint according to the occupancy schedule
Capacity limit control SIOB, EMM AI-10 J9 Used for capacity limitation
Chiller partially shutdown SIOB, EMM DO-05 J23 Indicates the shutdown of one of the circuits
Chiller shutdown SIOB, EMM DO-06 J22 Indicates the unit shutdown
Chiller capacity running output (0 to 10 V) SIOB, EMM AO-01 J10 Reports the capacity percentage of the unit
Heat reclaim condenser ow status (30XA only) SIOB, Heat reclaim DI-01 J1 Used to verify the water ow on the condenser side
Heat reclaim enable switch (30XA only) SIOB, Heat reclaim DI-02 J1 Used to switch between air-condenser (open contact) and water
condenser (closed contact) in Remote mode
Free cooling disable switch (30XA only) SIOB, Free cooling DI-01 J1 Used to control free cooling when the unit is in Remote mode
3.9.2 - Volt-free contact on/off/cooling/heating
If the unit operates in Remote mode, on/off contacts and
heating/cooling contacts operate as follows:
Without multiplexing
 Cooling Heating
On/O contact open closed closed
Cooling/heating contact - open closed
With multiplexing
 Cooling Heating Auto
On/O contact open closed closed open
Cooling/heating contact open open closed closed
Legend:
1. O: Unit is stopped
2. Cooling: Unit is allowed to start in Cooling
3. Heating: Unit is allowed to start in Heating
4. Auto: Unit can run in Cooling or Heating in accordance with the changeover
values.
3.9.3 - Volt-free setpoint selection contact
This dry contact input is used to switch between setpoints. It
is active only when the control is in Remote mode.
Cooling Heating
Setpoint 1 Setpoint 2 Setpoint 1 Setpoint 2
Setpoint selection contact open closed open closed
3.9.1 - General description
Some contacts can be accessed only when the unit operates
in Remote mode.
The following table summarises the connections at the user
terminal block.
3.9.4 - Volt-free demand limit selection contact
Up to two dry contacts can be used to limit unit capacity.
Note that the second contact is available for units with the
energy management module.
Capacity limitation with two contacts is as follows:
100% Limit 1 Limit 2 Limit 3
Demand limit 1 contact open closed open closed
Demand limit 2 contact open open closed closed
The limits are dened in the SETPOINT menu.

9
4.2.1 - Welcome Screen

the Touch Pilot user interface. It displays the application
name as well as the current software version number.
In order to exit the Welcome screen,
press the Home button
4.2.2 - Touch Pilot synoptic screen
The Synoptic screen provides an overview of the system control,
allowing the user to monitor the vapour-refrigeration cycle.The
diagram indicates the current status of the unit, giving
information on the unit capacity, the status of condenser and

All unit functions can be accessed by pressing the Main menu
button
The bell located in the upper-right part of the screen lights
when any fault is detected (see also section 8.2).
By default, the parameters are presented in metric units. For
more information on how to change the system of
measurement, see section 4.3.3.
1. Economizer
2. Unit capacity percentage
3. Outdoor air temperature
4. Status screen message
5. Evaporator inlet and outlet water temperature
6. Setpoint
NOTE: The synoptic screen display may vary depending on
pumps conguration.
TOUCH PILOT CONTROL INTERFACE
4.1 - General description
Touch Pilot includes the 5 in. touch screen allowing for easy
system control. Navigation through the Touch Pilot control is
either using the touch screen interface or by connecting to the
web interface. It is recommended to use a pen for the navigation
via the touch screen.
The navigation menus are the same for both connection
methods (Touch Pilot user interface and web browser).Only
two web connections are authorised at the same time.
NOTE: Some functionalities are unavailable when using the
web browser interface.
4.2 - Screens overview
The Touch Pilot control interface includes the following
screens:
• Welcome screen
• Synoptic screen
• Operating mode selection screen
 
• Password entry and language selection screen
• Alarms screen
 
• Time schedule screen
• Trending visualisation screen
If the interface is not used for a long period, the Welcome
screen is displayed, and then it goes blank. The control is
always active and the operating mode remains unchanged.
Press anywhere on the screen to access Touch Pilot control.
The Welcome screen will be displayed.

10
Information message box
The information displayed in the status bar at the bottom of
the screen includes relevant messages regarding the current
user action.
All screens presented further in this manual may display the
following messages:
MESSAGE STAT US
COMMUNICATION FAILURE! Equipment controller did not respond while
reading the table content.
ACCESS DENIED! Equipment controller denies access to one of the
table data blocks.
LIMIT EXCEEDED! The value entered exceeds the table limits.
Save changes? Modications have been made. The exit must be
conrmed by pressing Save or Cancel.
HIGHER FORCE IN EFFECT! Equipment controller rejects Force or Auto
command.
4.3 - Start/Stop screen
The Start/Stop screen allows users to select the operating
mode of the unit.
4.3.1 - Unit start-up
With the unit in the Local off mode, press the Start/Stop
button to display the list of operating modes and select
the required mode.
NOTE: When entering the menu,please note that the currently
selected item corresponds to the last running operating type.
4.3.2 - Unit stop
In order to stop the unit, press the Start/Stop button
Conrm Stop or return
to the previous screen by pressing the Back button
Once the unit has been stopped, the Synoptic screen will be
displayed (see also section 4.2.2).
Shows the last
selected mode
4.3.3 - User Login screen
The User Login screen allows the user to select the language
of the controller, change the system of measurement
(imperial or metric) and enter a password to gain access to
more control options (default password = 11).
The User Login screen can be accessed by pressing the Log
button in the upper-right corner of the screen (see also
section 4.2.2).
4.4 - Main menu
The Main menu provides access to the main control
parameters, including general parameters, inputs and outputs
status, etc.
In order to access the menu, press the Main menu button
located in the upper-left part of the Synoptic screen
(see also section 4.2.2).
Specic unit parameters table/menu can be accessed by pressing
the icon corresponding to the desired category. In order to go back
to the Synoptic screen, press
1. Cursor indicating the selected language
2. Logged-in button
3. Logged-o button
4. System of measurement selection: Metric/Imperial
5. Password dialog box
Once all the changes have been made, press to save or
to cancel changes.
NOTE: Password validation is effective only after pressing
the Logged-in button.

11
4.5 - 


menu, etc.
4.5.1 - General conguration screen
To access the General configuration screen, go to the
General Conguration
1. Save
2. Cancel
3. Previous page
4. Next page

and introduce all the necessary changes.
Press the Up/Down buttons to navigate between
the screens.
Once all the necessary modications have been made, press
to conrm or to cancel changes.
4.4.1 - General parameters screen
The General parameters screen provides access to a set of
general unit parameters.
To access the General parameters screen, go to the Main
menu and select General Parameters
1. Forceable point
Press the Up/Down buttons to navigate between
the screens.
4.4.2 - Parameter modication
         
following screen is displayed.
Press OK to save or EXIT to cancel the modication.

12
4.5.2 - Schedule screen

one (OCCPC01S) is used for controlling the unit start/stop,
whereas the second one (OCCPC02S) is used for controlling
the dual setpoint.

and select Schedule Menu
Set the time schedule and the selected period will be
presented in the form of the green band on the timeline.
Press  to cancel changes.
1. Selection of the applicable days for the time schedule
2. Modication of the period: start time and end time
3. Save
4. Cancel
5. Previous time period
6. Next time period
4.5.3 - Override screen
The override screen provides the option to issue the command
overriding the current operation of the unit. To access the
override screen, press the forceable point of the data screen.
Press to set or to remove the forced point.

13
WEB CONNECTION
The Touch Pilot system control can be accessed via a web
browser (Internet Explorer,Mozilla Firefox,etc.).Connection
is from a PC using a web browser with Java.
CAUTION: PCD controllers accessible via the Internet must
be protected by rewall and VPN connection.
5.1 - Web interface access
In order to access Touch Pilot, enter the IP address of the
unit in the address bar of the web browser.
Unit default address: 169.254.0.1.
NOTE: Only two web connections may be authorised at the
same time.
5.2 - 

• Internet Explorer (version 8 or higher) or Mozilla
Firefox (version 26 or higher). In the advanced
connection options add the unit IP address to the
exceptions list. Do not use a proxy server.
• Java platform (version 6 or higher). In the control
panel, clear the Keep temporary les on my computer
checkbox and use a direct connection.
NOTE: Two users can be connected simultaneously with no
priority between them. The last modication is taken into
account.
5.3 - Technical documentation access
When theTouch Pilot control is used via a PC web browser, the
controller allows the user to access the technical documentation
for the product.
Press the Technical document button to access a list of
documents related to the unit and its components.
Technical documentation includes the following documents:
• Spare parts documentation: The list of spare parts
included in the unit with reference, description and
drafting.
• Misc: Documents such as regulation algorithm,

• PED: Pressure Equipment Directive.
• IOM: Installation operation and maintenance manual,
controls installation/maintenance manual.
IMPORTANT: Please save all data (documents, drawings,
diagrams, etc.), for example, on your computer. If display
memory is erased or the display is replaced, all documents
will be lost. Make sure that all documents are stored and
may be accessed at any time.

14
TOUCH PILOT INTERFACE DETAILS
6.1 - Menu structure

15
6.2 - Detailed menu description
Icon Displayed text* Description Associated table
General Parameters General parameters GENUNIT
Temperatures Temperatures TEMP
Pressures Pressures PRESSURE
Inputs Status Inputs status INPUTS
Outputs Status Outputs status OUTPUTS
Pump Status Pump status PUMPSTAT
Run Times Run times RUNTIME
Modes Modes MODES
Reclaim Reclaim RECLAIM
Freecooling Free cooling FREECOOL
Setpoint Table Setpoint table SETPOINT
Trendings Trendings TRENDING
Conguration Menu Conguration menu CONFIG
* Depends on the selected language (English by default).
GENUNIT – General parameters
No. Status Unit Displayed text* Description
1 0 to 3 - Local=0 Net.=1 Remote=2 Operating mode:
0 = Local
1 = Network
2 = Remote
2 - - Run Status Unit running status: O, Stopping, Delay,
Running, Ready, Override, Tripout, Test, Runtest
3 0 to 1 - Net.: Cmd Start/Stop Unit start/stop via Network
4 0 to 1 - Net.: Cmd Occupied Unit time schedule via Network
5 - min Minutes Left for Start Minutes before the unit start-up
6 - - Heat/Cool status Heating/cooling status
7 0 to 2 - Heat/Cool Select Heating/cooling selection
8 - - 0=Cool. 1=Heat. 2=Auto 0 = Cooling
1 = Heating
2 = Automatic heating/cooling control
9 0 to 2 - Setpoint Select Setpoint selection
10 - - 0=Auto. 1=Spt1. 2=Spt2 0 = Automatic setpoint selection
1 = Setpoint 1
2 = Setpoint 2
11 0 to 1 - Setpoint Occupied? Setpoint status
12 0 to 100 % Percent Total Capacity Total unit capacity
13 - A Actual Chiller Current Actual chiller current
14 0 to 200 A Chiller Current Limit Chiller current limit
15 - °C Current Setpoint Current setpoint value
16 - - Control Point Control point
17 0 to 1 - Emergency Stop Emergency stop
18 0 to 100 % Active Demand Limit Val Active demand limit value
* Depends on the selected language (English by default)

16
TEMP – Temperatures
No. Status Unit Displayed text* Description
1 - °C Cooler Entering Fluid Evaporator entering water temperature
2 - °C Cooler Leaving Fluid Evaporator leaving water temperature
3 - °C Condenser Entering Fluid Condenser entering water temperature
4 - °C Condenser Leaving Fluid Condenser leaving water temperature
5 - °C Saturated Cond Tmp cir A Saturated condensing temperature, circuit A
6 - °C Saturated Suction Temp A Saturated suction temperature, circuit A
7 - °C Compressor Suction Tmp A Compressor suction temperature, circuit A
8 - °C Discharge Gas Temp cir A Discharge gas temperature, circuit A
9 - °C Motor Temperature cir A Motor temperature, circuit A
10 - °C Saturated Cond Tmp cir B Saturated condensing temperature, circuit B
11 - °C Saturated Suction Temp B Saturated suction temperature, circuit B
12 - °C Compressor Suction Tmp B Compressor suction temperature, circuit B
13 - °C Discharge Gas Temp cir B Discharge gas temperature, circuit B
14 - °C Motor Temperature cir B Motor temperature, circuit B
15 - °C Saturated Cond Tmp cir C Saturated condensing temperature, circuit C
16 - °C Saturated Suction Temp C Saturated suction temperature, circuit C
17 - °C Compressor Suction Tmp C Compressor suction temperature, circuit C
18 - °C Discharge Gas Temp cir C Discharge gas temperature, circuit C
19 - °C Motor Temperature cir C Motor temperature, circuit C
20 - °C Optional Space Temp Optional space temperature
21 - °C CHWS Temperature Master/slave common water temperature
22 - °C CHWS Heat Temp Master/slave heating temperature
23 - °C External Temperature External temperature
24 - °C Cooler Heater Temp Evaporator heater temperature
25 - °C Circuit C Heater Temp Heater temperature, circuit C
26 - °C Economizer Gas Temp A Economizer gas temperature, circuit A
27 - °C Economizer Gas Temp B Economizer gas temperature, circuit B
28 - °C Economizer Gas Temp C Economizer gas temperature, circuit C
29 - °C Dry Cool Leav Water Tmp Dry Cooler Leaving Water Temperature (units
tted with a dry cooler)
*Depends on the selected language (English by default).
PRESSURE – Pressures
No. Status Unit Displayed text* Description
1 - kPa Discharge Pressure A Discharge pressure, circuit A
2 - kPa Main Suction Pressure A Suction pressure, circuit A
3 - kPa Oil Pressure A Oil pressure, circuit A
4 - kPa Oil Pressure DierenceA Oil pressure dierence, circuit A
5 - kPa Economizer Pressure A Economizer pressure, circuit A
6 - kPa Discharge Pressure B Discharge pressure, circuit B
7 - kPa Main Suction Pressure B Suction pressure, circuit B
8 - kPa Oil Pressure B Oil pressure, circuit B
9 - kPa Oil Pressure DierenceB Oil pressure dierence, circuit B
10 - kPa Economizer Pressure B Economizer pressure, circuit B
11 - kPa Discharge Pressure C Discharge pressure, circuit C
12 - kPa Main Suction Pressure C Suction pressure, circuit C
13 - kPa Oil Pressure C Oil pressure, circuit C
14 - kPa Oil Pressure DierenceC Oil pressure dierence, circuit C
15 - kPa Economizer Pressure C Economizer pressure, circuit C
INPUTS – Inputs status
No. Status Unit Displayed text* Description
1 open/close - Remote On/O Switch Remote On/O switch
2 open/close - Remote HeatCool Switch Remote heating/cooling selection switch
3 open/close - Remote Reclaim Switch Remote reclaim switch
4 open/close - Free Cooling Disable Sw Free cooling disable switch
5 open/close - Remote Setpoint Switch Setpoint selection switch
6 open/close - Limit Switch 1 Demand limit switch 1
7 open/close - Limit Switch 2 Demand limit switch 2
8 open/close - Oil Level Input A Oil level input, circuit A
9 open/close - Oil Level Input B Oil level input, circuit B
10 open/close - Oil Level Input C Oil level input, circuit C
11 - A Motor Current A Motor current, circuit A
12 - A Motor Current B Motor current, circuit B

17
No. Status Unit Displayed text* Description
13 - A Motor Current C Motor current, circuit C
14 - mA Reset/Setpnt4-20mA Sgnl 4-20 mA signal, setpoint reset
15 open/close - Customer Interlock Customer interlock
16 open/close - Ice Done Storage Switch Ice storage end switch
17 open/close - Occupied Override Switch Occupied override switch
18 - mA Limit 4-20mA Signal 4-20 mA signal, capacity limit
19 open/close - Electrical Box Interlock Electrical box interlock
20 open/close - Cooler Heater command Evaporator heater command
21 no/yes - BACnet Dongle BACnet dongle
22 - V Leakage detector 1 val Leakage detection (Refrigerant leak detection option)
23 - V Leakage detector 2 val Leakage detection (Refrigerant leak detection option)
24 o/on - ElecBoxFan1 input state Electrical Box Fan status 1 (units with HFO)
25 o/on - ElecBoxFan2 input state Electrical Box Fan status 2 (units with HFO)
26 o/on - ElecBoxFan3 input state Electrical Box Fan status 3 (units with HFO)
* Depends on the selected language (English by default).
OUTPUTS – Output status
No. Status Unit Displayed text* Description
1o/on - Compressor A Compressor A status
2o/on - Oil Solenoid Output A Oil solenoid output, circuit A
3o/on - Slide Valve 1 Output A Slide valve 1 output, circuit A
4o/on - Slide Valve 2 Output A Slide valve 2 output, circuit A
5 - V Capacity Signal Cir A 0-10 V capacity signal, circuit A
6o/on - Compressor B Compressor B status
7o/on - Oil Solenoid Output B Oil solenoid output, circuit B
8o/on - Slide Valve 1 Output B Slide valve 1 output, circuit B
9o/on - Slide Valve 2 Output B Slide valve 2 output, circuit B
10 - V Capacity Signal Cir B 0-10 V capacity signal, circuit B
11 o/on - Compressor C Compressor C status
12 o/on - Oil Solenoid Output C Oil solenoid output, circuit C
13 o/on - Slide Valve 1 Output C Slide valve 1 output, circuit C
14 o/on - Slide Valve 2 Output C Slide valve 2 output, circuit C
15 - V Capacity Signal Cir C 0-10 V capacity signal, circuit C
16 - V Chiller Capacity signal Chiller capacity signal
17 o/on - Alarm Relay Status Alarm relay status
18 o/on - Running Relay Status Running relay status
19 o/on - Alert Relay State Alert relay state
20 o/on - Shutdown Indicator State Shutdown indicator status
21 0 to 100 % Cond 3 Way Valve Pos Condenser 3-way valve position
22 o/on - Cooler Heater Command Evaporator heater command status
23 o/on - Ready or Running Status Unit ready/running status
24 o/on - Reclaim Condenser Heater Reclaim condenser heater status
25 o/on - Ball Valve Close Out A Ball valve close output, circuit A
26 o/on - Ball Valve Open OutA Ball valve open output, circuit A
27 o/on - Ball Valve Close Out B Ball valve close output, circuit B
28 o/on - Ball Valve Open OutB Ball valve open output, circuit B
29 o/on - Ball Valve Close Out C Ball valve close output, circuit C
30 o/on - Ball Valve Open Out C Ball valve open output, circuit C
31 - - Fan Staging Number A Fan stage, circuit A
32 - - Fan Staging Number B Fan stage, circuit B
33 - - Fan Staging Number C Fan stage, circuit C
34 0 to 100 % Head Press Act Pos A Head pressure control – actuator position, circuit A
35 0 to 100 % Head Press Act Pos B Head pressure control – actuator position, circuit B
36 0 to 100 % Head Press Act Pos C Head pressure control – actuator position, circuit C
37 o/on - Oil Heater Output A Oil heater output, circuit A
38 o/on - Oil Heater Output B Oil heater output, circuit B
39 o/on - Oil Heater Output C Oil heater output, circuit C
40 o/on - 4 Way Refrig Valve A 4-way refrigerant valve position, circuit A
41 o/on - 4 Way Refrig Valve B 4-way refrigerant valve position, circuit B
42 close/open - Ball Valve Position A Ball valve position, circuit A
43 close/open - Ball Valve Position B Ball valve position, circuit B
44 close/open - Ball Valve Position C Ball valve position, circuit C
45 o/on - Alarm Relay Status Alarm relay output status
46 o/on - Electrical Box Fan sw Electrical box fan status (units with HFO)
47 0 to 10 - Dry Cool Vfan1 Output Dry cooler – variable speed fan 1
48 0 to 10 - Dry Cool Vfan2 Output Dry cooler – variable speed fan 2
49 o/on - Dry Cool fan stage 1 Dry cooler fan stage 1
50 o/on - Dry Cool fan stage 2 Dry cooler fan stage 2
51 o/on - Dry Cool fan stage 3 Dry cooler fan stage 3
52 o/on - Dry Cool fan stage 4 Dry cooler fan stage 4
53 o/on -Dry Cool fan stage 5 Dry cooler fan stage 5
54 o/on - Dry Cool fan stage 6 Dry cooler fan stage 6
55 o/on - Dry Cool fan stage 7 Dry cooler fan stage 7
56 o/on - Dry Cool fan stage 8 Dry cooler fan stage 8
*Depends on the selected language (English by default).

18
PUMPSTAT – Pump status
No. Status Unit Displayed text* Description
1 no/yes - Cooler Flow Setpoint Out Evaporator ow setpoint output
2 0 to 1 - Cooler Pump #1 Command Evaporator pump 1 control
3 0 to 1 - Cooler Pump #2 Command Evaporator pump 2 control
4 0 to 1 - Rotate Cooler Pumps ? Evaporator pumps rotation
5 open/close - Cooler Flow Switch Evaporator ow switch
6 0 to 1 - Condenser Pump Command1 Condenser pump 1 control
7 0 to 1 - Condenser Pump Command2 Condenser pump 2 control (not available!)
8 0 to 1 - Rotate Condenser Pumps ? Condenser pumps rotation (not available!)
9 - kPa Water pres before cooler Evaporator entering water pressure
10 - kPa Water pres after cooler Evaporator leaving water pressure
11 - kPa Water pres before lter Filter entering water pressure
12 - kPa Water pres after lter Filter leaving water pressure
13 - l/s Water ow Water ow rate
14 - kW Cooling power Cooling power
15 open/close - Condenser Flow Status Condenser ow status
*Depends on the selected language (English by default).
RUNTIME – Run times
No. Status Unit Displayed text* Description
1 - hour Machine Operating Hours Unit operating hours
2 - - Machine Starts Number Number of unit starts
3 - hour Compressor A Hours Operating hours, compressor A
4 - - Compressor A Starts Number of starts, compressor A
5 - hour Compressor B Hours Operating hours, compressor B
6 - - Compressor B Starts Number of starts, compressor B
7 - hour Compressor C Hours Operating hours, compressor C
8 - - Compressor C Starts Number of starts, compressor C
9 - hour Cooler Pump #1 Hours Operating hours, evaporator pump 1
10 - hour Cooler Pump #2 Hours Operating hours, evaporator pump 2
11 - hour Condenser Pump #1 Hours Operating hours, condenser pump 1
12 - hour Condenser Pump #2 Hours Operating hours, condenser pump 2 (not available!)
13 - hour Free Cool A Pump Hours Pump operating hours in Free Cooling, circuit A
14 - hour Free Cool B Pump Hours Pump operating hours in Free Cooling, circuit B
* Depends on the selected language (English by default).
NOTE: The displayed run times are updated every hour.
MODES – Modes
No. Status Unit Displayed text* Description
1 no/yes - Start Up Delay In Eect Start-up delay in eect
2 no/yes - Second Setpoint In Use Second setpoint in use
3 no/yes - Reset In Eect Setpoint reset active
4 no/yes - Demand limit Active Demand limit active
5 no/yes - Ramp Loading Active Ramp loading active
6 no/yes - Cooler Heater Active Evaporator heater active
7 no/yes - Cooler Pump Rotation Evaporator pump rotation
8 no/yes - Pump Periodic Start Pump periodic start active
9 no/yes - Night Low Noise Active Night low noise active
10 no/yes - Master Slave Active Master/slave mode active
11 no/yes - Auto Changeover Active Automatic changeover active
12 no/yes - Heating Low EWT Lockout Heating low EWT lockout
13 no/yes - Condenser Pump Rotation Condenser pump rotation (not available!)
14 no/yes - Cond Pump Periodic Start Condenser pump periodic start
15 no/yes - Ice Mode In Eect Ice storage mode active
16 no/yes - Defrost Active On Cir A Defrost mode active, circuit A
17 no/yes - Defrost Active On Cir B Defrost mode active, circuit B
18 no/yes - Free Cooling Active Free cooling mode active
19 no/yes - Reclaim Active Reclaim mode active
20 no/yes - Low Suction Circuit A Low suction, circuit A
21 no/yes - Low Suction Circuit B Low suction, circuit B
22 no/yes - Low Suction Circuit C Low suction, circuit C
23 no/yes - Map compressor Circuit A Compressor mapping, circuit A
24 no/yes - Map compressor Circuit B Compressor mapping, circuit B
25 no/yes - Map compressor Circuit C Compressor mapping, circuit C

19
No. Status Unit Displayed text* Description
26 no/yes - High Pres Override Cir A High pressure override, circuit A
27 no/yes - High Pres Override Cir B High pressure override, circuit B
28 no/yes - High Pres Override Cir C High pressure override, circuit C
* Depends on the selected language (English by default).
RECLAIM – Reclaim
No. Status Unit Displayed text* Description
1 0 to 1 - Heat Reclaim Select Heat reclaim selection
2 - °C Reclaim Entering Fluid Reclaim entering water temperature
3 - °C Reclaim Leaving Fluid Reclaim leaving water temperature
4 0 to 100 % Reclaim Valve Position Reclaim valve position
5 - - Reclaim Status Circuit A Reclaim status, circuit A
6 - kPa Pumpdown Pressure Cir A Pump-down pressure, circuit A
7 - °C Sub Condenser Temp Cir A Subcooling condenser temperature, circuit A
8 - °C Pumpdown Saturated Tmp A Pump-down saturated temperature, circuit A
9 - ^C Subcooling Temperature A Subcooling temperature, circuit A
10 o/on - Air Cond Entering Valv A Air condenser entering valve status, circuit A
11 o/on - Water Cond Enter Valve A Water condenser entering valve status, circuit A
12 o/on - Air Cond Leaving Valve A Air condenser leaving valve status, circuit A
13 o/on - Water Cond Leaving Val A Water condenser leaving valve status, circuit A
14 - - Reclaim Status Circuit B Reclaim status, circuit B
15 - kPa Pumpdown Pressure Cir B Pump-down pressure, circuit B
16 - °C Sub Condenser Temp Cir B Subcooling condenser temperature, circuit B
17 - °C Pumpdown Saturated Tmp B Pump-down saturated temperature, circuit B
18 - ^C Subcooling Temperature B Subcooling temperature, circuit B
19 o/on - Air Cond Entering Valv B Air condenser entering valve status, circuit B
20 o/on - Water Cond Enter Valve B Water condenser entering valve status, circuit B
21 o/on - Air Cond Leaving Valve B Air condenser leaving valve status, circuit B
22 o/on - Water Cond Leaving Val B Water condenser leaving valve status, circuit B
*Depends on the selected language (English by default).
FREECOOL – Free cooling
No. Status Unit Displayed text* Description
1 - - GENERAL PARAMETERS GENERAL PARAMETERS
2 0 to 1 - Free Cooling Disable? Free cooling mode status
3 - ^C LWT-OAT Delta LWT – OAT Delta
4 - - CIRCUIT A Circuit A
5 - kW Mechanical Cooling Power Mechanical cooling power
6 - kW Free Cooling Maxi Power Free cooling maximum power
7 - min Next session allowed in Next session allowed after the specied time
8 - min Cooling/FreeCool Timeout Cooling/free cooling timeout
9 no/yes - Free Cool Conditions OK? Optimal free cooling conditions
10 no/yes - Free Cool Request ? Free cooling request
11 o/on - Free Cooling Heaters ? Free cooling heaters status
12 no/yes - Free Cooling Active Free cooling status
13 - - Fan Staging Number Fan stage
14 o/on - Discharge valve Open out Discharge valve open output
15 o/on - Dischrge valve Close out Discharge valve close output
16 - - Discharge valve status Discharge valve status
17 o/on - Bypass valve Open out Bypass valve open output
18 o/on - Bypass valve Close out Bypass valve close output
19 - - Bypass valve status Bypass valve status
20 o/on - Refrigerant Pump Out Refrigerant pump output
21 - kPa Pump Inlet Pressure Pump inlet pressure
22 - kPa Pump Outlet Pressure Pump outlet pressure
23 - kPa Pump Dierential Press. Pump dierential pressure
24 0 to 100 % EXV position EXV position
25 - °C Free cooling Liquid Tmp Free cooling liquid temperature
26 - ^C Free cooling Subcool Tmp Free cooling subcooling temperature
27 - ^C Free cooling Subcool Spt Free cooling subcooling setpoint
28 - - CIRCUIT B Circuit B
29 - kW Mechanical Cooling Power Mechanical cooling power
30 - kW Free Cooling Maxi Power Free cooling maximum power
31 - min Next session allowed in Next session allowed after the specied time
32 - min Cooling/FreeCool Timeout Cooling/free cooling timeout
33 no/yes - Free Cool Conditions OK? Optimal free cooling conditions
34 no/yes - Free Cool Request ? Free cooling request
35 o/on - Free Cooling Heaters ? Free cooling heaters status
36 no/yes - Free Cooling Active Free cooling status

20
No. Status Unit Displayed text* Description
37 - - Fan Staging Number Fan stage
38 o/on - Discharge valve Open out Discharge valve open output
39 o/on - Dischrge valve Close out Discharge valve close output
40 - - Discharge valve status Discharge valve status
41 o/on - Bypass valve Open out Bypass valve open output
42 o/on - Bypass valve Close out Bypass valve close output
43 - - Bypass valve status Bypass valve status
44 o/on - Refrigerant Pump Out Refrigerant pump output
45 - kPa Pump Inlet Pressure Pump inlet pressure
46 - kPa Pump Outlet Pressure Pump outlet pressure
47 - kPa Pump Dierential Press. Pump dierential pressure
48 0 to 100 % EXV position EXV position
49 - °C Free cooling Liquid Tmp Free cooling liquid temperature
50 - ^C Free cooling Subcool Tmp Free cooling subcooling temperature
51 - ^C Free cooling Subcool Spt Free cooling subcooling setpoint
*Depends on the selected language (English by default).
SETPOINT – Setpoint table
No. Status Default Unit Displayed text* Description
1 -28.9 to 26 6.7 °C Cooling Setpoint 1 Cooling setpoint 1
2 -28.9 to 26 6.7 °C Cooling Setpoint 2 Cooling setpoint 2
3 -28.9 to 26 6.7 °C Cooling Ice Setpoint Ice storage setpoint
4 0.1 to 11.1 0.6 ^C Cooling Ramp Loading Cooling ramp loading setpoint
5 26.7 to 63** 37.8 °C Heating Setpoint 1** Heating setpoint 1
6 26.7 to 63** 37.8 °C Heating Setpoint 2** Heating setpoint 2
7 0.1 to 11.1 0.6 ^C Heating Ramp Loading Heating ramp loading setpoint
8 3.9 to 50 23.9 °C Cool Changeover Setpt Cooling changeover setpoint
9 0 to 46.1 17.8 °C Heat Changeover Setpt Heating changeover setpoint
10 26.7 to 60 35 °C Water Val Condensing Stp Water valve condensing setpoint
11 0 to 100 100 % Switch Limit Setpoint 1 Limit setpoint switch 1
12 0 to 100 100 % Switch Limit Setpoint 2 Limit setpoint switch 2
13 0 to 100 100 % Switch Limit Setpoint 3 Limit setpoint switch 3
14 35 to 50 50 °C Reclaim Setpoint Heat reclaim setpoint
15 2.8 to 15 5 ^C Reclaim Deadband Heat reclaim deadband
*Depends on the selected language (English by default).
** 26.7 to 70.0°C range for units with HFO.
NOTE: Since specic units may not include certain options, some tables provided in the document contain parameters
that cannot be congured for a given unit.
6.3 - Alarms menu
Icon Displayed text* Description
Reset Alarms Alarm reset
Current Alarms Current alarms
Alarm History Alarm History
Major Alarm History Major alarm history
*Depends on the selected language (English by default).