Carrier AquaForce 61XWHZE Use and maintenance manual

CONTROLS MANUAL
Original document
SmartVuTM control
61XWHZE (301 - 1751)

2
1 - SAFETY CONSIDERATIONS........................................................................................................................................................5
1.1 - Safety guidelines.......................................................................................................................................................................5
1.2 - Safety precautions.....................................................................................................................................................................5
2 - CONTROL OVERVIEW .................................................................................................................................................................5
2.1 - Control system ..........................................................................................................................................................................5
2.2 - Operating modes.......................................................................................................................................................................5
3 - HARDWARE DESCRIPTION.........................................................................................................................................................6
3.1 - Control boards...........................................................................................................................................................................6
3.2 - SmartVuTM connections............................................................................................................................................................. 6
3.3 - Power supply to boards.............................................................................................................................................................6
3.4 - Light emitting diodes .................................................................................................................................................................6
3.5 - Pressure transducers ................................................................................................................................................................7
3.6 - Temperature sensors.................................................................................................................................................................7
3.7 - Actuators ...................................................................................................................................................................................7
3.8 - Terminal block connections ....................................................................................................................................................... 8
3.9 - RS485 wiring (best practice) .....................................................................................................................................................9
4 - USER INTERFACE: OVERVIEW ................................................................................................................................................ 11
4.1 - Touch screen display............................................................................................................................................................... 11
4.2 - Home screen (synoptic view) .................................................................................................................................................. 11
4.3 - Circuit view.............................................................................................................................................................................. 11
4.4 - Information message box........................................................................................................................................................ 11
4.5 - Header buttons........................................................................................................................................................................12
4.6 - Subheader buttons..................................................................................................................................................................12
4.7 - Other buttons...........................................................................................................................................................................13
4.8 - Screen calibration....................................................................................................................................................................13
4.9 - Warning messages..................................................................................................................................................................13
4.10 - Saving modications .............................................................................................................................................................13
5 - USER INTERFACE: MENU STRUCTURE..................................................................................................................................14
5.1 - Main menu...............................................................................................................................................................................14
5.2 - Conguration menu.................................................................................................................................................................21
5.3 - Schedule menu .......................................................................................................................................................................25
5.4 - Holiday menu ..........................................................................................................................................................................25
5.5 - Network menu .........................................................................................................................................................................26
5.6 - System menu ..........................................................................................................................................................................28
5.7 - Login menu..............................................................................................................................................................................31
5.8 - Start / stop menu.....................................................................................................................................................................32
5.9 - Alarms menu ...........................................................................................................................................................................33
6 - STANDARD CONTROL OPERATIONS AND OPTIONS ............................................................................................................ 35
6.1 - Unit start/stop control .............................................................................................................................................................35
6.2 - Unit stop function.....................................................................................................................................................................35
6.3 - Heating/Cooling selection........................................................................................................................................................35
6.4 - Pumps control .........................................................................................................................................................................36
6.5 - Control interlock contact (EMM option) ...................................................................................................................................36
6.6 - Control point............................................................................................................................................................................36
6.7 - Capacity limitation ...................................................................................................................................................................38
6.8 - Current limitation .....................................................................................................................................................................38
6.9 - Capacity control.......................................................................................................................................................................39
6.10 - Night mode............................................................................................................................................................................39
6.11 - Circuit leag/lag selection (multi-circuit units) .........................................................................................................................39
6.12 - Compressor loading sequence (multi-circuit units) ............................................................................................................... 39
6.13 - High condensing temperature ...............................................................................................................................................40
6.14 - Head pressure control...........................................................................................................................................................40
6.15 - Energy management module ................................................................................................................................................40
6.16 - Master/Slave control..............................................................................................................................................................40
6.17 - Trending ................................................................................................................................................................................41
6.18 - User quick test.......................................................................................................................................................................41
6.19 - BACnet (option 149)..............................................................................................................................................................41
6.20 - Modbus (option 149B)...........................................................................................................................................................41
6.21 - Software Activation Key(s) ....................................................................................................................................................42
6.22 - Schedule setting....................................................................................................................................................................43
6.23 - Holidays.................................................................................................................................................................................43
CONTENTS

3
The cover photos are solely for illustration and form no part of any o󰀨er for sale or any sale contract. The manufacturer reserves the
right to change the design at any time without notice.
7 - WEB CONNECTION....................................................................................................................................................................44
7.1 - Web interface ..........................................................................................................................................................................44
7.2 - Technical documentation.........................................................................................................................................................44
8 - DIAGNOSTICS ............................................................................................................................................................................45
8.1 - Control diagnostics..................................................................................................................................................................45
8.2 - Displaying current alarms........................................................................................................................................................45
8.3 - E-mail notications ..................................................................................................................................................................45
8.4 - Resetting alarms .....................................................................................................................................................................45
8.5 - Alarm history............................................................................................................................................................................45
8.6 - Alarms description...................................................................................................................................................................46
9 - MAINTENANCE...........................................................................................................................................................................50
CONTENTS

4
PREFACE
The goal of this manual is to give a broad overview of the main
functions of the SmartVuTM control system used to control and
monitor the operation of 61XWHZE high condensing single-circuit
and dual-circuit heat pumps.
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 support of a qualied
Manufacturer Service Engineer is strongly 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 available for
the specic unit.
IMPORTANT: All screenshots of the user interface provided
in this manual include text in English. After changing the
language of the system, all labels will be in the language
selected by the user.
Please read all instructions prior to proceeding with any work.
Pay attention to all safety warnings.
The information provided herein is solely for the purpose of
allowing customers to operate and service the equipment and it
is not to be reproduced, modied or used for any other purpose
without the prior consent of the Manufacturer.
Acronyms/abbreviations
In this manual, the refrigerant circuits are called circuit A and
circuit B.
The following abbreviations are used frequently:
BMS Building Management System
CCN Carrier Comfort Network
DGT Discharge Gas Temperature
EMM Energy Management Module
EXV Electronic Expansion Valve
LED Light Emitting Diode
LEN Internal communication bus linking the controller
and the boards
SCT Saturated Condensing Temperature
SST Saturated Suction Temperature
Operating modes:
Network mode/Net Operating type: Network
Local-O󰀨/LOFF Operating type: Local O󰀨
Local-On/L-C Operating type: Local On mode
Local-Schedule/L-SC Operating type: Local On following
a time schedule
Master mode/Mast Operating type: Master unit (master/
slave assembly)
Remote mode/Rem Operating type: Remote contacts

5
1 - SAFETY CONSIDERATIONS
1.1 - Safety guidelines
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
structures).
Only properly qualied installation engineers and highly qualied
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 xed to the equipment and
components and 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 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 - Safety precautions
Only personnel qualied 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 o󰀨 before any work is begun. Shut o󰀨 the main power
supply at the main circuit breaker or isolator.
IMPORTANT: This equipment conforms to all applicable codes
regarding electromagnetic compatibility.
RISK OF ELECTROCUTION! Even when the main circuit
breaker or isolator is switched o, 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 the 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).
2 - CONTROL OVERVIEW
2.1 - Control system
The SmartVuTM system controls the start-up of the compressors
needed to maintain the desired heat exchanger entering and
leaving water temperature. The controller serves as a user interface
and a conguration tool for controlling the operation of the unit.
SmartVuTM constantly monitors safety devices that protect the unit
against failure and guarantee its optimal functioning.
2.2 - Operating modes
The control 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 / BACnet / Modbus). Data communication cable is used
to connect the unit to the CCN communication bus.
When the control operates autonomously (Local or Remote),
it retains all of its control capabilities but does not o󰀨er any of the
features of the Network.
Emergency stop! The Network emergency stop command
stops the unit regardless of its active operating type.

6
3.1 - Control boards
Each circuit is by default tted with one SIOB/CIOB board used
to manage all inputs and outputs of the controller. TCPM board is
used to control and protect the operation of screw compressors
and AUX1 board provides the refrigerant leakage detection option.
At the same time, Energy Management Module (EMM) requires
an additional SIOB/CIOB board to be installed. All boards
communicate via an internal LEN bus.
SmartVuTM continuously monitors the information received from
various pressure and temperature probes and accordingly starts
the program that controls the unit.
The electrical box includes all boards controlling the unit and the
user interface.
The unit is equipped with the SmartVuTM user interface:
■4.3-inch colour LCD touch screen (standard)
■7-inch colour LCD touch screen (optional).
3.2 - SmartVuTM connections
Depending on the size of the touch screen, connections are located
on the bottom (or the bottom and the right side) of the main
controller.
■The control o󰀨ers communication protocols such as LEN, CCN
(Carrier Comfort Network), Modbus, or BACnet.
■It is possible to enable and disable end of line resistors via the
System menu (see section 5.6).
■Ethernet ports allow for TCP/IP communication or BMS
(Building Management System) connection.
4.3" standard touch screen - bottom view
7" optional touch screen - bottom view
7" optional touch screen - side view
3 - HARDWARE DESCRIPTION
3.3 - Power supply to boards
All boards are supplied from a common 24 VAC supply referred
to earth. 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.
CAUTION: Maintain correct polarity when connecting the power
supply to the boards, otherwise the boards may be damaged.
3.4 - Light emitting diodes
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.
■ The red LED ashing for a two-second period indicates correct
operation. A di󰀨erent rate indicates a board or a software failure.
■ The green LED ashes continuously on all boards to show that
the board is communicating correctly over its internal bus (LEN
bus). If the green LED is not ashing, this indicates a LEN bus
wiring problem or a conguration issue.

7
3.5 - Pressure transducers
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/CIOB board.
■Discharge pressure sensors (high pressure type)
These sensors measure the discharge pressure in each circuit.
It is used to control condensing 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 di󰀨erential oil pressure.
■Economizer pressure sensors (high pressure type)
These sensors measure the intermediary pressure between
suction and discharge pressure sensors. They are used for
EXV economizer control. The sensors are mounted on the
plate exchanger on the economizer side.
3.6 - 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 on the condenser side.
■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.
■Master/slave water sensor (optional)
The water temperature sensor is used for master/slave
assembly control.
3.7 - 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 6.4).
■Condenser pump
The controller can regulate one condenser pump.
■Electronic expansion valve
The electronic expansion valve (EXV) is used to adjust the
refrigerant ow to changes in the operating conditions of the
machine. To adjust the refrigerant flow, a piston moves
constantly 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 provides precise control of
the refrigerant ow.
■Water ow switch
The water ow switch conguration allows for the automatic
control of the minimum water ow setpoint of the water ow
switch. The conguration depends on the unit size and is made
automatically at the start-up. If the measured water ow rate
in the water loop is lower than the congured ow rate, the
alarm condition shuts o󰀨 the unit.
3 - HARDWARE DESCRIPTION

8
3.8 - Terminal block connections
Connections available at the user terminal block may vary
depending on the selected options. The following table summarizes
connections at the user terminal block.
IMPORTANT: Some contacts can be accessed only when the
unit operates in Remote mode.
Terminal block connections
Description Board Connector Remarks
On/O󰀨 switch SIOB/CIOB, circuit A DI-01 Used for the unit on/o󰀨 control if the unit is in Remote mode.
Second setpoint switch SIOB/CIOB, circuit A DI-02 The contact is taken into consideration if the unit is in Remote mode.
Demand limit switch #1 SIOB/CIOB, circuit A DI-03 Used to control demand limit (see section 6.7).
Heat/Cool switch SIOB/CIOB, circuit A DI-04 Used to select heat/cool mode.
Reset setpoint 4-20 mA signal SIOB/CIOB, circuit A AI-10 Allows the customer to reset the currently selected setpoint.
Alarm Relay SIOB/CIOB, circuit A DO-05 Indicates alarms.
Running Relay SIOB/CIOB, circuit A DO-06 Used to signal a running status (at least one compressor started).
Occupancy override switch SIOB/CIOB, EMM DI-01 Enables to switch between occupied (closed contact) and unoccupied
mode (open contact).
Capacity limit switch input #2 SIOB/CIOB, EMM DI-02 Used to control capacity limit.
Customer interlock SIOB/CIOB, EMM DI-03 Used for the customer safety loops.
Ice done contact SIOB/CIOB, EMM DI-04 Used for ice storage control.
Capacity limit control SIOB/CIOB, EMM AI-10 Used for capacity limitation.
Chiller ready SIOB/CIOB, EMM DO-04 Output closed when the chiller is ready.
Chiller in alert SIOB/CIOB, EMM DO-05 Indicates the shutdown of one of the circuits.
Chiller totally shutdown SIOB/CIOB, EMM DO-06 Indicates the unit shutdown.
3.8.1 - Volt-free contact on/o󰀨/cooling/heating
For units in Remote mode, on/o󰀨 and heating/cooling contacts
operate as follows:
O󰀨 Cooling Heating
On/O󰀨 contact open closed closed
Cooling/heating contact open open 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
3.8.2 - Volt-free setpoint 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
3.8.3 - 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.
3 - HARDWARE DESCRIPTION

9
3 - HARDWARE DESCRIPTION
3.9 - RS485 wiring (best practice)
For RS485 ports, one of the following cables can be used:
■ For CCN or Modbus communication which is over 300 m or in
a noisy environment with Variable Frequency Drive (VFD),
a cable with two twisted pairs is recommended. For example,
Belden 3106A or Alpha Wire 6454.
■ For applications where the length of the cable is up to 300 m
and there is no Variable Frequency Drive (VFD), it is possible
to use cost-e󰀨ective cable solutions, for example, Belden 8772.
Note that “+” and “-” are communication signals and they are from
the same twisted pair.
The signal ground could be a single wire or a twisted pair and it should
be connected to the “C” pin of J10 (Modbus RTU) or J7 (CCN).
This wire is required so that all nodes on the bus share a common
ground reference connection.
If a shield is used, then the shield cable should be properly
terminated and connected as short as possible at ONLY ONE
END to one of the following:
■the chassis ground for the 4.3-inch controller OR
■the SHD connector pin for the 7-inch controller.
3.9.1 - RS485 wiring: 4.3-inch controller
The following diagrams illustrate possible RS485 wiring schemes
for 4.3-inch controllers.
The rst wiring scheme is the best option (RECOMMENDED), but
the second or the third wiring can also be used.
No.1 RS485 wiring diagram (RECOMMENDED)
No. 2 RS485 wiring diagram (CORRECT)
No. 3 RS485 wiring diagram (CORRECT)
No. 4 RS485 wiring diagram (INCORRECT - Do not use!)
No. 5 RS485 wiring diagram (INCORRECT - Do not use!)

10
3 - HARDWARE DESCRIPTION
3.9.2 - RS485 wiring: 7-inch controller
The following diagrams illustrate possible RS485 wiring schemes
for 7-inch controllers.
The rst wiring scheme is the best option (RECOMMENDED), but
the second or the third wiring can also be used.
No.1 RS485 wiring diagram (RECOMMENDED)
No. 2 RS485 wiring diagram (CORRECT)
No. 3 RS485 wiring diagram (CORRECT)
No. 4 RS485 wiring diagram (INCORRECT- Do not use!)
No. 5 RS485 wiring diagram (INCORRECT- Do not use!)
3.9.3 - RS485: Daisy chain conguration
The following illustration shows proper 3-wire cable with a shield
in a daisy chain conguration.
BC
D
Legend
B Shield
C Keep shield continued
D Connect shield to earth ground only at one point
End of Line Resistor: Termination is only needed when running at
bus at very high speed over long distances.
The speed of the bus and the cable distance determine whether
termination is needed. It is meant to balance the bus to minimize
the ringing that may be caused by fast signals and the inductance
of the cabling.
At 9600 baud, termination will have little or no e󰀨ect on the bus.

11
4.1 - Touch screen display
SmartVuTM is a 4.3-inch (standard) or 7-inch (optional) colour
touch screen with quick display of alarms, current unit operating
status, etc. It allows for web connectivity and custom language
support (control parameters displayed in the language selected
by the user).
■If the touch screen is not used for a while, the screen backlight
will be turned o󰀨. The control system is always active and
the operating mode remains unchanged. Press anywhere on
the screen and the Home screen will be displayed.
■It is recommended to use a stylus for the navigation via
the touch screen (not provided with the controller).
4.2 - Home screen (synoptic view)
The home screen is the starting point of the controller. It is also
the rst screen shown after starting the user interface.
B
D
E
C
Example: Home screen (web interface)
The picture of the synoptic view presented above includes the
subheader which is displayed only when the controller is accessed
via the web interface (see section 7.1).
Legend
1. Header buttons (see section 4.5)
2. Subheader buttons (see section 4.6)
3. Synoptic view / Circuit view (see section 4.3)
4. Information message box (see section 4.4)
Please note that the picture of the chiller is for illustration only and
it may di󰀨er from the actual look of the chiller that is available on
eld. The image displayed on the home screen represents the
whole series of 61XWHZE chillers.
The home screen allows you to monitor basic information about
the operation of the chiller and its working conditions.
Icon Description
Setpoint: This parameter is used to display the currently
selected setpoint. Press the icon to modify the setpoint
(possible only when logged in!, see section 5.7).
Unit capacity: The gauge shows current unit capacity.
Pump status: Press the icon to go to pump parameters.
The pump image is animated when the pump is “on”.
Leaving Water Temperature: This parameter shows
current leaving water temperature.
Entering Water Temperature: This parameter shows
current entering water temperature.
4 - USER INTERFACE: OVERVIEW
4.3 - Circuit view
To access the circuit view, please press the Circuit view button
(see section 4.6).
The circuit view is available from:
■4.3" controller - only web browser
■7" controller - web browser and local UI
B
CD
E
Icon Description
(1) Compressor is used to squeeze the compressor
refrigerant gas and turn it into high pressure gas. The image
is animated when at least one compressor is running in the
circuit.
(2) Condenser is a heat exchanger used to cool down the
vapour and condense the gas into a liquid.
(3) EXV is used to control the ow of refrigerant into the
evaporator. The circuit view displays the current position of
the electronic expansion valve.
Valve position is given in %, where 0% means closed
position and 100% means open position.
(4) Evaporator absorbs heat from the air and it does the
opposite of the condenser, i.e. the evaporator converts
the liquid into gas.
Circuit capacity: The gauge shows current circuit capacity.
Leaving Water Temperature: This parameter shows
current leaving water temperature.
Entering Water Temperature: This parameter shows
current entering water temperature.
4.4 - Information message box
The information displayed in the status bar at the bottom of
the screen includes relevant messages related to actions taken
by the user.
Message Description
SUCCESS Displayed when the requested action is executed.
INTERNAL
COMMUNICATION
FAILURE!
Displayed when the main application is not
running.
HIGH FORCE IN
EFFECT!
Displayed when the controller rejects the “Force”
command (applicable only to status menus).
ACCESS DENIED!
Displayed when trying to perform actions not
allowed at current access level.

12
4.5 - Header buttons
Home Main MenuPrevious screen System Menu Login Menu Start / Stop Alarms Menu
Button Description
Home screen: Press the button to go to the Home screen.
Previous screen: Press the button to go back to the previous screen.
Main menu: Press the button to go to the Main menu.
System menu: Press the button to go to the System menu.
Login menu: Used to log in to the controller in order to access higher conguration level.
User is not logged in. Service technician access level.
User access level. Factory access level.
Start/Stop menu: Used to control the unit control mode.
Unit is currently stopped (blue icon).
Unit is currently running (green icon).
Alarms menu: Press the button to go to the Alarms menu.
The grey bell means there is currently no alarm active on the unit.
The yellow ringing bell means that there is a partial alarm (one circuit a󰀨ected by the alarm) or Alert (no action
taken on the unit).
The red ringing bell means that the unit is a󰀨ected by the alarm.
4.6 - Subheader buttons
Button * Description
Circuit view: Press the button to go to the circuit view.
Green lights in the corners of the circuit icon mean the circuit is currently running.
Grey lights in the corners of the circuit icon mean the circuit is currently stopped.
* Please note that the letter inside the circuit icon stands for the circuit, i.e. “A” stands for circuit A.
4 - USER INTERFACE: OVERVIEW

13
4.7 - Other buttons
Button Description
Save button: Press the button to save the modication.
Cancel button: Press the button to cancel the
modication.
Log in button: Press the button to log in at specic
access level.
Log o󰀨 button: Press the button to log o󰀨.
Conrm button: Press the button to conrm the
modication.
Cancel button: Press the button to cancel the
modication.
Up button: Press the button to scroll up.
Down button: Press the button to scroll down.
Force button: Press the button to force the parameter.
Remove Force button: Press the button to remove
the forced parameter.
Trending button: Press the button to display trends.
Refresh button: Press the button to refresh the view.
Zoom in button: Press the button to magnify the
current view.
Zoom out button: Press the button to expand the
current view.
Left button: Press the button to go to the left.
Rewind button: Press the button to go to the left faster
than normal.
Right button: Press the button to go to the right.
Fast-forward button: Press the button to go the right
faster than normal.
4.8 - Screen calibration
The purpose of screen calibration is to make sure that the software
acts correctly upon pressing icons on the user interface.
To calibrate the screen
1. Press and hold anywhere on the screen.
2. The calibration process will start.
3. Please follow instructions displayed on the screen:
“Touch the target in (...) screen corner”
4.9 - Warning messages
Warning messages are used to inform the user that a problem
occurred and the requested action cannot be completed successfully.
Login failure
If the wrong password is provided, the following warning message
will be displayed:
“The password entered does not match any stored passwords”
■Press the Conrm button and type the correct password
(see section 5.7).
4.10 - Saving modications
In case a parameter has been changed, but not saved with the
Save button, the following warning message will be displayed:
“Your recent changes haven’t been saved (...)”
■Press the Conrm button to continue without saving the
modication.
■Press the Cancel button to come back to the current screen
and then save the modication with the Save button.
4 - USER INTERFACE: OVERVIEW

14
5.1 - Main menu
5 - USER INTERFACE: MENU STRUCTURE
Basic access (no password)
User password required
Legend:
Home Main MenuPrevious screen System Menu Login Menu Start / Stop Alarms Menu
... ...
Conguration menu
See section 5.2
Main menu
General Parameters Temperatures Pressures
Run Times Modes Setpoint Table
Outputs Status Pump StatusInputs Status
Software Options
Conguration Menu TrendingsQuick Test 1

15
The Main menu provides access to the main control parameters,
including general parameters, inputs and outputs status, etc.
To access the menu, press the Main menu button located in the
upper-left part of the Home screen.
Specic unit parameters can be accessed by pressing the icon
corresponding to the desired category.
NOTE: The Trendings menu is displayed in form of a graph.
For more information about Trendings, see section 6.17.
CAUTION: Since specic units may not include additional
features, some tables may contain parameters that cannot
be congured for a given unit.
GENUNIT – General Parameters
No. Name Status Unit Displayed text* Description
1 CTRL_TYP 0 to 2 - Local=0 Net.=1 Remote=2
Operating mode:
0 = Local
1 = Network
2 = Remote
2 STATUS xxx - Run Status Unit running status: O󰀨, Running, Stopping, Delay, Trip out, Ready,
Override, etc.
3 CHIL_S_S disable/enable -Net.: Cmd Start/Stop Unit start/stop via Network: When the unit is in Network mode,
start/stop command can be forced
4 CHIL_OCC no/yes -Net.: Cmd Occupied Unit time schedule via Network: When the unit is in Network mode,
the forced value can be used instead of the real occupancy state
5 min_left -min Minutes Left for Start Minutes before the unit start-up
6 HEATCOOL Heat/Cool -Heat/Cool status Heating/cooling status: Heat/Cool
7 HC_SEL 0 to 2 -Heat/Cool Select Heating/cooling selection:
80=Cool. 1=Heat. 2=Auto
0 = Cooling mode
1 = Heating mode
2 = Auto mode (Not applicable to this unit!)
9 SP_SEL 0 to 2 -Setpoint Select Setpoint selection
10 0=Auto. 1=Spt1. 2=Spt2
0 = Auto (schedule control)
1 = Setpoint 1 (active during occupied period)
2 = Setpoint 2 (active during unoccupied period)
11 SP_OCC no/yes - Setpoint Occupied?
Setpoint occupancy status:
no = unoccupied
yes = occupied
12 CAP_T - % Percent Total Capacity Total unit capacity
13 TOT_CURR - A Actual Chiller Current Actual chiller current
14 CURR_LIM 0 to 4000 A Chiller Current Limit Chiller current limit
15 sp - °C/°F Current Setpoint Current setpoint
16 CTRL_PNT - °C/°F Control Point Control point: Water temperature that the unit must produce
17 EMSTOP disable/enable - Emergency Stop Emergency stop: Used to stop the unit regardless of its active
operating type
18 DEM_LIM 0 to 100 % Active Demand Limit Val
Active demand limit value: When the unit is in Network mode, the
minimum value will be used compared to the status of the external
limit switch contact and the demand limit switch setpoint
*Depends on the selected language (English by default).
TEMP – Temperatures
No. Name Status Unit Displayed text* Description
1 COOL_EWT - °C/°F Cooler Entering Fluid Cooler entering uid temperature
2 COOL_LWT - °C/°F Cooler Leaving Fluid Cooler leaving uid temperature
3 COND_EWT - °C/°F Condenser Entering Fluid Condenser entering uid temperature
4 COND_LWT - °C/°F Condenser Leaving Fluid Condenser leaving uid temperature
5 SCT_A - °C/°F Saturated Cond Tmp cir A Saturated condensing temperature, circuit A
6 SST_A - °C/°F Saturated Suction Temp A Saturated suction temperature, circuit A
7 SUCT_A - °C/°F Compressor Suction Tmp A Compressor suction temperature, circuit A
8 DGT_A - °C/°F Discharge Gas Temp cir A Discharge gas temperature, circuit A
9 CP_TMP_A - °C/°F Motor Temperature cir A Motor temperature, circuit A
10 SCT_B - °C/°F Saturated Cond Tmp cir B Saturated condensing temperature, circuit B
11 SST_B - °C/°F Saturated Suction Temp B Saturated suction temperature, circuit B
12 SUCT_B - °C/°F Compressor Suction Tmp B Compressor suction temperature B
13 DGT_B - °C/°F Discharge Gas Temp cir B Discharge gas temperature, circuit B
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TEMP – Temperatures (continued)
No. Name Status Unit Displayed text* Description
14 CP_TMP_B - °C/°F Motor Temperature cir B Motor temperature, circuit B
15 SCT_C - °C/°F Saturated Cond Tmp cir C Not applicable to this unit
16 SST_C - °C/°F Saturated Suction Temp C Not applicable to this unit
17 SUCT_C - °C/°F Compressor Suction Tmp C Not applicable to this unit
18 DGT_C - °C/°F Discharge Gas Temp cir C Not applicable to this unit
19 CP_TMP_C - °C/°F Motor Temperature cir C Not applicable to this unit
20 SPACETMP - °C/°F Optional Space Temp Space temperature (EMM option)
21 CHWSTEMP - °C/°F CHWS Temperature Master/Slave common water temperature
22 CHWSHEAT - °C/°F CHWS Heat Temp Not applicable to this unit
23 ECO_TP_A - °C/°F Economizer Gas Temp A Economizer gas temperature, circuit A
24 ECO_TP_B - °C/°F Economizer Gas Temp B Economizer gas temperature, circuit B
25 ECO_TP_C - °C/°F Economizer Gas Temp C Not applicable to this unit
26 SUBC_T_A - °C/°F cond Liquid Temp A Condenser liquid temperature, circuit A
27 SUBC_T_B - °C/°F cond Liquid Temp B Condenser liquid temperature, circuit B
28 SUBC_APA - ^C/^F Apparent Subcooling A Apparent subcooling, circuit A
29 SUBC_APB - ^C/^F Apparent Subcooling B Apparent subcooling, circuit B
*Depends on the selected language (English by default).
PRESSURE – Pressures
No. Name Status Unit Displayed text* Description
1 DP_A - kPa/PSI Discharge Pressure A Discharge pressure, circuit A
2 SP_A - kPa/PSI Main Suction Pressure A Main suction pressure, circuit A
3 OP_A - kPa/PSI Oil Pressure A Oil pressure, circuit A
4 DOP_A - kPa/PSI Oil Pressure Di󰀨erenceA Oil pressure di󰀨erence, circuit A
5 ECON_P_A - kPa/PSI Economizer Pressure A Economizer pressure, circuit A
6 DP_B - kPa/PSI Discharge Pressure B Discharge pressure, circuit B
7 SP_B - kPa/PSI Main Suction Pressure B Main suction pressure, circuit B
8 OP_B - kPa/PSI Oil Pressure B Oil pressure, circuit B
9 DOP_B - kPa/PSI Oil Pressure Di󰀨erenceB Oil pressure di󰀨erence, circuit B
10 ECON_P_B - kPa/PSI Economizer Pressure B Economizer pressure, circuit B
11 DP_C - kPa/PSI Discharge Pressure C Not applicable to this unit
12 SP_C - kPa/PSI Main Suction Pressure C Not applicable to this unit
13 OP_C - kPa/PSI Oil Pressure C Not applicable to this unit
14 DOP_C - kPa/PSI Oil Pressure Di󰀨erenceC Not applicable to this unit
15 ECON_P_C - kPa/PSI Economizer Pressure C Not applicable to this unit
*Depends on the selected language (English by default).
INPUTS – Inputs Status
No. Name Status Unit Displayed text* Description
1ONOFF_SW open/close - Remote On/O󰀨 Switch Remote on/o󰀨 switch
2 HC_SW open/close - Remote HeatCool Switch Remote heating/cooling selection switch
3 SETP_SW open/close - Remote Setpoint Switch Remote setpoint switch
4 LIM_SW1 open/close - Limit Switch 1 Demand limit switch 1
5 LIM_SW2 open/close - Limit Switch 2 Demand limit switch 2 (EMM option)
6 OIL_L_A open/close - Oil Level Input A Oil level input, circuit A
7 OIL_L_B open/close - Oil Level Input B Oil level input, circuit B
8 OIL_L_C open/close - Oil Level Input C Not applicable to this unit
9 CURREN_A - A Motor Current A Motor current, circuit A
10 CURREN_B - A Motor Current B Motor current, circuit B
11 CURREN_C - A Motor Current C Not applicable to this unit
12 SP_RESET - mA Reset/Setpnt4-20mA Sgnl 4-20 mA signal, setpoint reset
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INPUTS – Inputs Status (continued)
No. Name Status Unit Displayed text* Description
13 REM_LOCK open/close - Customer Interlock
Customer interlock: When the contact is closed, the unit will be
stopped with no delay (alarm 10014). The switch is provided on the
customer's terminal block of the optional EMM.
14 ICE_SW open/close - Ice Done Storage Switch Ice done storage switch
15 OCC_OVSW open/close - Occupied Override Switch Occupied override switch
16 LIM_ANAL - mA Limit 4-20mA Signal 4-20 mA signal, capacity limit
17 ELEC_BOX open/close - Electrical Box Interlock Electrical box interlock
18 leak_v - V Leakage detector 1 val Refrigerant leakage detection (optional): Leakage detector 1 value
19 leak_2_v - V Leakage detector 2 val Refrigerant leakage detection (optional): Leakage detector 2 value
20 ElBxF1_s o󰀨/on -ElecBoxFan input state Electrical box fan input state
*Depends on the selected language (English by default).
OUTPUTS – Outputs Status
No. Name Status Unit Displayed text* Description
1 COMP_A o󰀨/on -Compressor A Compressor A status (circuit A)
2 OIL_SL_A o󰀨/on - Oil Solenoid Output A Oil solenoid output, circuit A
3 SLID_1_A o󰀨/on - Slide Valve 1 Output A Slide valve 1 output, circuit A
4 SLID_2_A o󰀨/on - Slide Valve 2 Output A Slide valve 2 output, circuit A
5 CAPT010A - V Capacity Signal Cir A 0-10V capacity signal, circuit A
6 COMP_B o󰀨/on - Compressor B Compressor B status (circuit B)
7 OIL_SL_B o󰀨/on - Oil Solenoid Output B Oil solenoid output, circuit B
8 SLID_1_B o󰀨/on - Slide Valve 1 Output B Slide valve 1 output, circuit B
9 SLID_2_B o󰀨/on - Slide Valve 2 Output B Slide valve 2 output, circuit B
10 CAPT010B - V Capacity Signal Cir B 0-10V capacity signal, circuit B
11 COMP_C o󰀨/on - Compressor C Not applicable to this unit
12 OIL_SL_C o󰀨/on - Oil Solenoid Output C Not applicable to this unit
13 SLID_1_C o󰀨/on - Slide Valve 1 Output C Not applicable to this unit
14 SLID_2_C o󰀨/on - Slide Valve 2 Output C Not applicable to this unit
15 CAPT010C - V Capacity Signal Cir C Not applicable to this unit
16 CAPT_010 - V Chiller Capacity signal Chiller capacity signal
17 ALARM o󰀨/on Alarm Relay Status Alarm relay status
18 RUNNING o󰀨/on Running Relay Status Running relay status
19 ALERT o󰀨/on Alert Relay State Alert relay state
20 SHUTDOWN o󰀨/on Shutdown Indicator State Shutdown indicator state
21 pos_3wv 0 to 100% % Cond 3 Way Valve Pos Condenser 3-way valve position
22 READY o󰀨/on - Ready or Running Status Unit ready/running status
23 ElBxFan o󰀨/on -Electrical Box Fan sw Electrical box fan status
*Depends on the selected language (English by default).
PUMPSTAT – Pump Status
No. Name Status Unit Displayed text* Description
1SET_FLOW no/yes - Cooler Flow Setpoint Out Cooler ow setpoint output
2 CPUMP_1 o󰀨/on - Cooler Pump #1 Command Cooler pump 1 control enabled
3 CPUMP_2 o󰀨/on - Cooler Pump #2 Command Cooler pump 2 control enabled
4 ROTCPUMP no/yes - Rotate Cooler Pumps ? Cooler pumps' rotation
5FLOW_SW open/close - Cooler Flow Switch Cooler ow switch
6 HPUMP_1 o󰀨/on - Condenser Pump Cmd1 Condenser pump control enabled
7 HPUMP_2 o󰀨/on - Condenser Pump Cmd2 Not applicable to this unit
8 ROTHPUMP no/yes - Rotate Condenser Pumps ? Rotate condenser pumps?
9CONDFLOW open/close - Condenser Flow Status Condenser ow status
*Depends on the selected language (English by default).
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RUNTIME – Run Times
No. Name Status Unit Displayed text* Description
1 HR_MACH - hour Machine Operating Hours Machine operating hours
2 st_mach - - Machine Starts Number Number of machine starts
3 hr_cp_a - hour Compressor A Hours Operating hours, compressor A
4 st_cp_a - - Compressor A Starts Number of starts, compressor A
5 hr_cp_b - hour Compressor B Hours Operating hours, compressor B
6 st_cp_b - - Compressor B Starts Number of starts, compressor B
7 hr_exv_a - hour EXV A Hours Operating hours, EXV (circuit A)
8 hr_exv_b - hour EXV B Hours Operating hours, EXV (circuit B)
9 hr_cpum1 - hour Cooler Pump #1 Hours Operating hours, cooler pump 1
10 hr_cpum2 - hour Cooler Pump #2 Hours Operating hours, cooler pump 2
11 hr_hpum1 - hour Condenser Pump #1 Hours Operating hours, condenser pump
12 hr_hpum2 - hour Condenser Pump #2 Hours Not applicable to this unit
*Depends on the selected language (English by default).
MODES – Modes
No. Name Status Unit Displayed text* Description
1 m_delay no/yes - Start Up Delay In E󰀨ect Start-up delay in e󰀨ect
2 m_2stpt no/yes - Second Setpoint In Use Second setpoint in use
3 m_reset no/yes - Reset In E󰀨ect Setpoint reset active
4 m_demlim no/yes - Demand limit Active Demand limit active
5 m_ramp no/yes - Ramp Loading Active Ramp loading active
6 m_pmprot no/yes - Cooler Pump Rotation Cooler pump rotation
7 m_pmpper no/yes - Pump Periodic Start Pump periodic start active
8 m_night no/yes - Night Low Noise Active Night low noise active
9 m_slave no/yes - Master Slave Active Master/Slave mode active
10 m_autoc no/yes - Auto Changeover Active Not applicable to this unit
11 m_lowEwt no/yes - Heating Low EWT Lockout Heating low EWT lockout
12 m_cpmpro no/yes - Condenser Pump Rotation Not applicable to this unit
13 m_cpmppr no/yes - Cond Pump Periodic Start Condenser pump periodic start
14 m_ice no/yes - Ice Mode In E󰀨ect Ice storage mode active (EMM option)
15 m_sst_a no/yes - Low Suction Circuit A Low suction, circuit A
16 m_sst_b no/yes - Low Suction Circuit B Low suction, circuit B
17 m_sst_c no/yes - Low Suction Circuit C Not applicable to this unit
18 m_map_a no/yes - Map compressor Circuit A Compressor mapping, circuit A
19 m_map_b no/yes - Map compressor Circuit B Compressor mapping, circuit B
20 m_map_c no/yes - Map compressor Circuit C Not applicable to this unit
21 m_hp_a no/yes - High Pres Override Cir A High pressure override, circuit A
22 m_hp_b no/yes - High Pres Override Cir B High pressure override, circuit B
23 m_hp_c no/yes - High Pres Override Cir C Not applicable to this unit
*Depends on the selected language (English by default).
SETPOINT – Setpoint Table
No. Name Status Default Unit Displayed text* Description
1 csp1 -12.0 to 55.0
10.4 to 131.0
20.0
68.0
°C
°F Cooling Setpoint 1 Cooling setpoint 1 (used during occupied periods)
2 csp2 -12.0 to 55.0
10.4 to 131.0
20.0
68.0
°C
°F Cooling Setpoint 2 Cooling setpoint 2 (used during unoccupied periods)
3 ice_sp -28.9 to 26.0
-20.0 to 78.8
6.7
44.0
°C
°F Cooling Ice Setpoint Cooling ice setpoint
4 cramp_sp 0.1 to 11.1
0.2 to 20.0
0.6
1.0
^C
^F Cooling Ramp Loading Cooling ramp loading setpoint (rate at which the water temperature may change within one minute in Cooling)
5 hsp1 35.0 to 85.0
95.0 to 185.0
70.0
158.0
°C
°F Heating Setpoint 1 Heating setpoint 1 (used during occupied periods)
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SETPOINT – Setpoint Table (continued)
No. Name Status Default Unit Displayed text* Description
6 hsp2 35.0 to 85.0
95.0 to 185.0
70.0
158.0
°C
°F Heating Setpoint 2 Heating setpoint 2 (used during unoccupied periods)
7 hramp_sp 0.1 to 11.1
0.2 to 20.0
0.6
1.0
^C
^F Heating Ramp Loading Heating ramp loading setpoint (rate at which the water temperature may change within one minute in Heating)
8 cauto_sp 3.9 to 50.0
39.0 to 122.0
23.9
75.0
°C
°F Cool Changeover Setpt Not applicable to this unit
9 hauto_sp 0 to 46.1
32.0 to 115.0
17.8
64.0
°C
°F Heat Changeover Setpt Not applicable to this unit
10 w_sct_sp 26.7 to 60.0
80.0 to 140.0
35.0
95.0
°C
°F Water Val Condensing Stp Water valve condensing setpoint
11 lim_sp1 0 to 100 100 % Switch Limit Setpoint 1 Switch limit setpoint 1 (demand limit)
12 lim_sp2 0 to 100 100 % Switch Limit Setpoint 2 Switch limit setpoint 2 (demand limit)
13 lim_sp3 0 to 100 100 % Switch Limit Setpoint 3 Switch limit setpoint 3 (demand limit)
*Depends on the selected language (English by default).
QCK_TST1 – Quick Test 1
No. Name Status Default Unit Displayed text* Description
1 QCK_TEST o󰀨/on o󰀨 -Quick Test Enable
This parameter is used to enable the Quick Test functionality
(Quick test Enable = yes)
With Quick Test enabled: Forcing a specic parameter given in this
table allows the user to verify if the component behaves correctly
2
3 Q_EXVA 0 to 100 0 % Circuit A EXV Position EXV position, circuit A (100% = EXV fully open)
4 Q_EXVB 0 to 100 0 % Circuit B EXV Position EXV position, circuit B (100% = EXV fully open)
5 Q_EXVC 0 to 100 0 % Circuit C EXV Position Not applicable to this unit
6 Q_ECO_A 0 to 100 0 % Circuit A Eco EXV Pos Economizer EXV position, circuit A
(100% = Economizer EXV fully open)
7 Q_ECO_B 0 to 100 0 % Circuit B Eco EXV Pos Economizer EXV position, circuit B
(100% = Economizer EXV fully open)
8 Q_ECO_C 0 to 100 0 % Circuit C Eco EXV Pos Not applicable to this unit
9 Q_OILS_A o󰀨/on - - Circuit A Oil Solenoid Oil solenoid valve, circuit A
10 Q_SLI_1A o󰀨/on - - Circuit A Slide Valve 1 Slide valve 1, circuit A
11 Q_SLI_2A o󰀨/on - - Circuit A Slide Valve 2 Slide valve 2, circuit A
12 Q_OILS_B o󰀨/on - - Circuit B Oil Solenoid Oil solenoid valve, circuit B
13 Q_SLI_1B o󰀨/on - - Circuit B Slide Valve 1 Slide valve 1, circuit B
14 Q_SLI_2B o󰀨/on - - Circuit B Slide Valve 2 Slide valve 2, circuit B
15 Q_OILS_C o󰀨/on - - Circuit C Oil Solenoid Not applicable to this unit
16 Q_SLI_1C o󰀨/on - - Circuit C Slide Valve 1 Not applicable to this unit
17 Q_SLI_2C o󰀨/on - - Circuit C Slide Valve 2 Not applicable to this unit
18 Q_PMP1 0 to 2 - - Cooler Pump 1
Cooler pump 1 test:
1 = Pump shall run for a short period of time
2 = Pump shall run all the time (set the value to “0” to stop the
pump test)
19 Q_PMP2 0 to 2 - - Cooler Pump 2
Cooler pump 2 test:
1 = Pump shall run for a short period of time
2 = Pump shall run all the time (set the value to “0” to stop the
pump test)
20 Q_HPMP1 0 to 2 - - Condenser Pump 1
Condenser pump test:
1 = Pump shall run for a short period of time
2 = Pump shall run all the time (set the value to “0” to stop the
pump test)
21 Q_ELBOXF o󰀨/on - - Electrical Box Fan Electrical box fan
22 Q_READY o󰀨/on - - Chiller Ready Output Chiller ready output
23 Q_RUN o󰀨/on - - Chiller Running Output Chiller running output
24 Q_CATO 0 to 100 0 % Chiller Capacity in0-10V Chiller capacity in 0-10V
25 Q_RUN_A o󰀨/on - - Cir A Running Output Running output, circuit A
26 Q_RUN_B o󰀨/on - - Cir B Running Output Running output, circuit B
27 Q_RUN_C o󰀨/on - - Cir C Running Output Not applicable to this unit
28 Q_SHUT o󰀨/on - - Shutdown Relay Status Shutdown relay status
5 - USER INTERFACE: MENU STRUCTURE

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5 - USER INTERFACE: MENU STRUCTURE
QCK_TST1 – Quick Test 1 (continued)
No. Name Status Default Unit Displayed text* Description
29 Q_ALARM o󰀨/on - - Alarm Relay Status Alarm relay status
30 Q_ALERT o󰀨/on - - Alert Relay Switch Alert relay switch
31 Q_DEXV_A 0 to 100 0 % DGT EXV Position A DGT EXV position, circuit A (100% = EXV fully open)
32 Q_DEXV_B 0 to 100 0 % DGT EXV Position B DGT EXV position, circuit B (100% = EXV fully open)
33 Q_3W_VLV 0 to 100 - % 3 way valve position 3-way valve position
*Depends on the selected language (English by default).
IMPORTANT: To enable the Quick Test functionality, the unit
must be stopped (Local o mode).
Trendings
No. Name Status Unit Description
1 GENUNIT_CTRL_PNT - % Control point
2 TEMP_COOL_EWT - °C/°F Cooler entering uid
3 TEMP_COOL_LWT - °C/°F Cooler leaving uid
4 TEMP_COND_EWT - °C/°F Condenser entering uid
5 TEMP_COND_LWT - °C/°F Condenser leaving uid
6 TEMP_SCT_A - °C/°F Saturated condensing temperature, circuit A
7 TEMP_SST_A - °C/°F Saturated suction temperature, circuit A
8 TEMP_SCT_B - °C/°F Saturated condensing temperature, circuit B
9 TEMP_SST_B - °C/°F Saturated suction temperature, circuit B
10 INPUTS_CURREN_A - AMPS Motor current, circuit A
11 INPUTS_CURREN_B - AMPS Motor current, circuit B
12 EXV_CTRL_EXV_A - % EXV position, circuit A
13 EXV_CTRL_DSH_A - ^C/^F Discharge superheat, circuit A
14 EXV_CTRL_ov_exv_a - - EXV override, circuit A
15 EXV_CTRL_EXV_B - % EXV position, circuit B
16 EXV_CTRL_DSH_B - ^C/^F Discharge superheat, circuit B
17 EXV_CTRL_ov_exv_b - - EXV override, circuit B
18 EXV_CTRL_eco_sha - ^C/^F Economizer superheat, circuit A
19 EXV_CTRL_ov_eco_a - - EXV override, circuit A
20 EXV_CTRL_eco_shb - ^C/^F Economizer superheat, circuit B
21 EXV_CTRL_ov_eco_b - - EXV override, circuit B
22 LOADFACT_cap_t_a - % Actual capacity, circuit A
23 LOADFACT_cap_t_b - % Actual capacity, circuit B
24 LOADFACT_smz - % Load/unload factor
25 LOADFACT_over_cap - - Active capacity override
*Depends on the selected language (English by default).
OPT_STA – Software Options
No. Name Status Unit Displayed text* Description
1 opt5 no/yes - OPT5: Medium Brine Not applicable to this unit
2 opt6 no/yes - OPT6: Low Brine Not applicable to this unit
3 opt149 no/yes - OPT149: BACnet Parameter set to “yes” means that BACnet option which requires the
Software Key is activated (see also section 6.19)
4 opt149B no/yes - OPT149B: Modbus Parameter set to “yes” means that Modbus option which requires the
Software Key is activated (see also section 6.20)
5 opt295 no/yes - OPT295: Fast Capacity Recovery Not applicable to this unit
*Depends on the selected language (English by default).