Carrier SmartVu control Use and maintenance manual

CONTROLS MANUAL
SmartVu Control
50/48 UC-(V)/UP-(V) 025-220
Original document

CONTENTS
2
1 - SAFETY CONSIDERATIONS .....................................................................................................................................................5
1.1 - Safety guidelines .............................................................................................................................................................5
1.2 - Safety precautions ...........................................................................................................................................................5
2 - CONTROL OVERVIEW ...............................................................................................................................................................6
2.1 - Control system.................................................................................................................................................................6
2.2 - System functionalities ......................................................................................................................................................6
2.3 –SmartVu functionalities....................................................................................................................................................6
2.4 –Operating modes ............................................................................................................................................................6
3 - HARDWARE..........................................................................................................................................................................................7
3.1 - Control boards .................................................................................................................................................................7
3.2 - Electrical box ...................................................................................................................................................................7
3.3 -Touchpanel connections..................................................................................................................................................7
3.4 -Power supply to boards....................................................................................................................................................7
3.5 -Terminal block connections..............................................................................................................................................7
3.6 -Pressure transducers ........................................................................................................................................................8
3.7 - Temperature sensors........................................................................................................................................................9
3.8 –The controlls ....................................................................................................................................................................9
4 - SMARTVU USER INTERFACE.................................................................................................................................................10
4.1 -Touchscreen display......................................................................................................................................................10
4.2 -Home screen (synoptic view) .........................................................................................................................................10
4.3 –THR page .....................................................................................................................................................................10
4.4 -Information message box...............................................................................................................................................10
4.5 - Header buttons .............................................................................................................................................................. 11
4.6 - Subheader buttons......................................................................................................................................................... 11
4.7 - Other buttons.................................................................................................................................................................12
4.8 - Screen calibration..........................................................................................................................................................12
4.9 - Warning messages ........................................................................................................................................................12
5 - SMARTVU CONTROL: MENU STRUCTURE ..........................................................................................................................13
5.1 - Main menu.....................................................................................................................................................................13
5.2 - Configuration menu........................................................................................................................................................22
5.3 - Schedule menu..............................................................................................................................................................26
5.4 - Holiday menu.................................................................................................................................................................26
5.6 - System menu.................................................................................................................................................................29
5.7 -User Login menu............................................................................................................................................................32
5.8 -Start / Stop menu...........................................................................................................................................................33
5.9 - Alarms menu..................................................................................................................................................................34
6 - STANDARD CONTROL OPERATIONS AND OPTIONS..........................................................................................................36
6.1 -External thermostat control ............................................................................................................................................36
6.2 –Cooling only unit ...........................................................................................................................................................37
6.3 –Single-circuit heat pump unit .........................................................................................................................................37
6.4 –Dual-circuit/dual-compressor heat pump unit.................................................................................................................38
6.5 –Unit start/stop control ....................................................................................................................................................38
6.6 -Calculating the space temperature.................................................................................................................................39
6.7 –Space temperature control point.....................................................................................................................................40
6.8 - Offset.............................................................................................................................................................................41
6.9 –Smart Start.....................................................................................................................................................................42
6.10 –Heating/cooling mode..................................................................................................................................................42
6.11 -Heat cool changeover ..................................................................................................................................................42
6.12 -Frost protection mode..................................................................................................................................................42
6.13 -Controlling space temperature .....................................................................................................................................43
6.14 -Cpacity limitation..........................................................................................................................................................43
6.15 –Cpacity control ............................................................................................................................................................44
6.16 -Head pressure control..................................................................................................................................................44
6.17 -Defrost function............................................................................................................................................................44
6.18 –Additional heater.........................................................................................................................................................44
6.19 -Electrical heater...........................................................................................................................................................44
6.20 -Pre-heating option control ............................................................................................................................................44
6.21 -Economizer..................................................................................................................................................................44
6.22 -Purge ..........................................................................................................................................................................44
6.23 -Controlling air quality ...................................................................................................................................................45
6.24 –Master/Slave assembly ...............................................................................................................................................46
6.25 –Fire protection.............................................................................................................................................................46
6.26 –Energy recovery module (ERM) ...................................................................................................................................47
6.27 –Thermodynamic energy recovery (THR).......................................................................................................................47
6.28 –Demand limit................................................................................................................................................................47
6.29 –VAV option...................................................................................................................................................................47
6.30 –Return fan option .........................................................................................................................................................47
6.31 –Night mode ..................................................................................................................................................................47
6.32 –Refrigerant leak detection option..................................................................................................................................47
6.33 –Bacnet .........................................................................................................................................................................47
6.34 –Modbus........................................................................................................................................................................47
6.35 –Schedule setting ..........................................................................................................................................................47
6.36 –Holidays.......................................................................................................................................................................47

CONTENTS
3
6.37 –Trending ......................................................................................................................................................................47
7 - WEB CONNECTION..................................................................................................................................................................48
7.1 - Web interface ................................................................................................................................................................48
8 - DIAGNOSTICS ..........................................................................................................................................................................49
8.1 - Control diagnostics ........................................................................................................................................................49
8.2 -Displaying current alarms...............................................................................................................................................49
8.3 - E-mail notifications.........................................................................................................................................................49
8.4 - Resetting alarms............................................................................................................................................................49
8.5 - Alarm history..................................................................................................................................................................49
8.6 - Alarm codes...................................................................................................................................................................50
9 - MAINTENANCE.........................................................................................................................................................................57
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.

4
PREFACE
The goal of this document is to give a broad overview of the main functions of the control system used to control 48/50 UC(V)-UP(V)
Rooftop air-air units with 25 to 220 kW cooling/heating capacity. 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 qualified Carrier 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 specific unit. The cover images are solely for illustration and form no part of any offer for sale or any sale contract.
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 Carrier manufactured
equipment and it is not to be reproduced, modified or used for any other purpose without the prior consent of Carrier Corporation.
ABBREVIATIONS
In this manual, the refrigeration circuits are called circuit A and
circuit B. Compressors in circuit A are labelled A1, A2, A3, A4,
whereas compressors in circuit B are labelled B1, B2, B3, B4.
Same for THR circuit which will be called circuit C.
The following abbreviations are used frequently:
RTU
Rooftop unit
CCN
Carrier Comfort Network
EXV
Electronic Expansion Valve
EHS
Electric Heater Stage
OAT
Outdoor Air Temperature
LED
Light Emitting Diode
LEN
Sensor Bus (internal communication
bus linking the basic board to slave
boards)
SCT
Saturated Condensing Temperature
SST
Saturated Suction Temperature
VFD
Variable Frequency Drive
VAV
Variable Air Volume
SIOB
StarFire Input Output Board
AUX
Auxiliary Board
THR
Thermodynamic Energy Recovery
Network mode/Net
Operating type: Network
Local-Off/LOFF
Operating type: Local Off
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
Thermostat control/Tstat
Operating type: Thermostat mode

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, 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 and
labels fixed to the equipment, components and other 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.
CAUTION: Only qualified service technicians should be allowed to install and service the equipment.
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.
IMPORTANT:
The equipment uses and emits electromagnetic signals. Tests have shown that the equipment conforms to all applicable
codes with respect to electromagnetic compatibility.
RISK OF ELECTROCUTION! Even when the main circuit breaker or isolator is switched off, specific 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.

6
2 - CONTROL OVERVIEW
2.1 - Control system
Rooftop units areequipped with SmartVu Control that serves as
the user interface and configurationtoolforCarriercommunicating
devices. The advanced SmartVu Control comes with web
connectivity.
The units typically have fixed speed compressor but also variable
speed compressors as an option . They have one or two
refrigerant circuits.
Smartvu is an electronic control systemto regulate units of the
following types :
■ 48UC-: Gas heating, cooling only, air cooled packaged rooftop
unit
■ 48UP-: Gas heating, heat pump, air cooled packaged rooftop
unit
■ 48UCV: Gas heating,cooling only, air cooledpackaged rooftop
unit with inverter compressor
■ 48UPV: Gas heating, heat pump, air cooled packaged rooftop
unit with inverter compressor
■ 50UC-: Cooling only, air cooled packaged rooftop unit
■ 50UP-: Heat pump, air cooled packaged rooftop unit
■ 50UCV: Cooling only, air cooled packaged rooftop unit with
inverter compressor
■ 50UPV: Heat pump, air cooled packaged rooftop unit with
inverter compressor
IMPORTANT:Thisdocumentmayrefertooptionalcomponents
and certain functions, options or accessories may not be
available for the specific unit.
2.2 - System functionalities
The system controls the start-up of the compressors neededto
maintain the desired heat exchanger entering and leaving water
temperature. It constantly manages the operation of the fansin
order to maintain the correct refrigerant pressure in each circuit
and monitors safety devices that protect the unit against failure
and guarantee its optimal functioning.
2.3 - SmartVu control system:
■ AllowsuserstocontroltheunitviatheSmartVuuserinterface
■ Provides web connectivity technology
■ Includes the trending functionality
■Supports Carrier Connect Services (Remote connectivity, alarm
notification, remote access, performance and operation
automatic reporting, technical advice)
■ SupportsCarrierAdvancedPlantSystemManagerformultiple
chillers/heat pumps configuration
■ Provides direct BMS integration capabilities (CCN RS485,
ModBus RS485 option, LON option, BACnet IP option)
2.4 - Operating modes
The control can operate in three independent modes:
■ Localmode: Theunitiscontrolledbycommandsfromtheuser
interface.
■ Remote mode: The unit is controlled by dry contacts.
■ Network mode: The unit is controlled by network commands
(CCNorBACnet).Datacommunicationcableisusedtoconnect
the unit to the CCN communicationbus.
■ Thermostat mode: The unit is controlled by thestart/stop and
setpoint contacts.
When the control operates autonomously (Local or Remote), it
retains all of its control capabilities but does not offer any of the
features of the Network.
CAUTION: Emergency stop! The Network emergency stop
commandstopstheunitregardlessofitsactiveoperatingtype
Feature
48/50 UC-UP Rooftop
Standard
Option
4.3'' touch screen (SmartVu)
✓
Web connectivity
✓
E-mail transmission
✓
Carrier Connect Services
✓
Language packs
✓
Language pack customization
✓
Metric / Imperial unit display
✓
History trends
✓
CCN communication
✓
BACnet IP communication
✓
ModBus RTU / ModBus TCP communication
✓
Fix speed scroll compressor
✓
Variable speed scroll compressor
✓
Indoor supply fan control
✓
Indoor return fan control
✓
Hot water coil
✓
Heating / Cooling control
✓
Economizer
✓
Heat recovery (circuit THR)
✓
Heat recovery (circuit ERM)
✓
Electrical stage control
✓
Gas modulate heater control
✓
Coil control
✓
Space temperature average
✓
Purge control
✓

7
Fire damper output
✓
Defrost mechanism (reversible HP)
✓
Refrigerant leak detection
✓
Diagnostics
✓

8
3 - HARDWARE
3.1 - Control boards
Each circuit is by default fitted with one SIOB board used tomanage all major inputs and outputs of the controller.
Options, such as IAQ or economizer, require the installation of a second SIOB and even a third one for pre-heaters for example.
Also, with humidity or variable speed compressors option for exemple, an AUX board will be needed.
All boards communicate via an internal LEN bus.
3.2 - Electrical box
The electrical box includes all boards controlling the unit andthe user interface (SmartVu).
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 equippedwith the SmartVu userinterface.The number of boards available in the electrical box depends on the number of
selected options.
3.3 - Touch panel connections
Connections are located on the bottom and the right side of the controller .
■ The control offers 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).
■ One Ethernet ports allow for TCP/IP communication connection.
Connections on the bottom side of the controller
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.
3.5 - Terminal block connections
3.5.1 - General description
The contacts below are available at the user terminal block on the SIOB board.
Depending on the user configuration, some contacts can only be used if the unit operates in remote operating type (Remote) or
thermostat operating type (TSTAT).
IMPORTANT: Rooftop inputs are voltage-free dry contacts. Connecting ther than voltage-free outputs to the rooftop
inputs will cause electrical damage.
Unit without thermostat input configuration
Description
Board
Input/Output
Connector
Remarks
Contact 1: Start/stop
SIOB1, circuit A
DI-01
J1
Used with the remote operating mode (Remote). The Room-mate
comfort controller option should be connected to this channel to be
able to start and stop the unit.

9
3 - HARDWARE
Contact 2: Demand limit
selection
SIOB1, circuit A
DI-02
J1
Used with the remote operating mode (Remote)
Contact 3: Setpoint selection 1
SIOB1, circuit A
DI-03
J1
Contact 4: Setpoint selection 2
SIOB1, circuit A
DI-04
J1
Enthalpy contact
SIOB2, circuit B
DI-04
J1
Supply fan status contact
SIOB1, circuit A
DI-07
J1
Indoor air flow verification input
Fire contact
SIOB1, circuit A
DI-05
J1
Fire safety input
Alarm relay output
SIOB1, circuit A
DO-05
J25
CCN network connection
SIOB1, circuit B
J4
RS-485 series connection
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -
Cooling only single or dual circuit unit or heat pump dual circuit unit with thermostat input configuration
Description
Board
Input/Output
Connector
Remarks
Contact 1: G contact
SIOB1, circuit A
DI-01
J1
Used with the thermostat operating mode (TSTAT).
Contact 2: Y1_W2 contact
SIOB1, circuit A
DI-02
J1
Contact 3: Y_Y2 contact
SIOB1, circuit A
DI-03
J1
Contact 1: W_W1 contact
SIOB2, circuit B
DI-01
J1
SIOB2 board is used for dual-circuit unit OR unit with additional heating
stages
Contact 2: O_W2 contact
SIOB2, circuit B
DI-02
J1
Enthalpy contact
SIOB2, circuit B
DI-04
J1
Supply fan status contact
SIOB1, circuit A
DI-07
J1
Indoor air flow verification input
Fire contact
SIOB1, circuit A
DI-05
Fire safety input
Alarm relay output
SIOB1, circuit A
DO-05
J25
CCN network connection
SIOB1, circuit B
J4
RS-485 series connection
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -
Heat pump dual compressor single circuit unit with thermostat input configuration
Description
Board
Input/Output
Connector
Remarks
Contact 1: G contact
SIOB1, circuit A
DI-01
J1
Used with the thermostat operating mode (TSTAT).
Contact 2: Y1_W2 contact
SIOB1, circuit A
DI-02
J1
Contact 3: Y_Y2 contact
SIOB1, circuit A
DI-03
J1
Contact 1: W_W1 contact
SIOB2, circuit B
DI-01
J1
SIOB2 board is used for dual-circuit unit OR unit with additional heating
stages
Contact 4: O_W2 contact
SIOB1, circuit A
DI-04
J1
Enthalpy contact
SIOB2, circuit B
DI-04
J1
Supply fan status contact
SIOB1, circuit A
DI-07
J1
Indoor air flow verification input
Fire contact
SIOB1, circuit A
DI-05
Fire safety input
Alarm relay output
SIOB1, circuit A
DO-05
J25
CCN network connection
SIOB1, circuit B
J4
RS-485 series connection
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -
Heat pump single compressor single circuit unit with thermostat input configuration
Description
Board
Input/Output
Connector
Remarks

10
Contact 1: G contact
SIOB1, circuit A
DI-01
J1
Used with the thermostat operating mode (TSTAT).
Contact 2: Y_Y2 contact
SIOB1, circuit A
DI-02
J1
Contact 3: O_W2 contact
SIOB1, circuit A
DI-03
J1
Contact 1: W_W1 contact
SIOB2, circuit B
DI-01
J1
SIOB2 board is used for dual-circuit unit OR unit with additional heating
stages
Contact 2: Y1_W2 contact
SIOB2, circuit B
DI-02
J1
Enthalpy contact
SIOB2, circuit B
DI-04
J1
Supply fan status contact
SIOB1, circuit A
DI-07
J1
Indoor air flow verification input
Fire contact
SIOB1, circuit A
DI-05
Fire safety input
Alarm relay output
SIOB1, circuit A
DO-05
J25
CCN network connection
SIOB1, circuit B
J4
RS-485 series connection
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -
The following table shows the thermostat output functions depending on the unit type used.
G: indoor fan on/off.
Y: compressor 1 on/off (single-circuit unit)
Y1: compressor 1 on/off
Y2: compressor 2 on/off
W: additional heating stage 1 on/off
W2: additional heating stage 2 on/off
O: cycle reversing valve on/off (heat pump units)
TSTAT
Types
TSTAT for single-circuit cooling
only
unit
TSTAT for dual-circuit cooling
only
unit
TSTAT for single-circuit heat
pump unit
TSTAT for dual-circuit heat
pump
unit
Rooftop
inputs
Thermostat
output name
Thermostat
output function
Thermostat
output name
Thermostat
output function
Thermostat
output name
Thermostat
output function
Thermostat
output name
Thermostat
output function
G
G
G
G
G
G
G
G
G
Y1_W2
Y1_W2
Y1
Y1_W2
Y1
Y1_W2
W2
Y1_W2
Y1
Y_Y2
Y_Y2
Y2
Y_Y2
Y2
Y_Y2
Y
Y_Y2
Y2
W_W1
W_W1
W
W_W1
W
W_W1
W
W_W1
W
O_W2
O_W2
W2
O_W2
W2
O_W2
O
O_W2
O
3.5.2 - Volt-free setpoint selection contact
Occupancy type
Setpoint
Selection
Occupied
Unoccupied
Heating: frost protection
Cooling: unoccupied
Schedule
Contact 1
Open
Closed
Open
Closed
Contact 2
Open
Open
Closed
Closed
3.5.3 -Volt-free demand limit selection contact
100%
Limit
Demand limit
open
closed

3 - HARDWARE
9
3.6 - Pressure transducers
Three types of transducers (high pressure, low pressure, air
differential pressure) are used to measure various pressures in
each circuit. These transducers deliver 0 to 5 VDC. They are
connected to the SIOB board.
■ Discharge pressure transducers (high pressure type)
These transducers measure the discharge pressure in each
circuit. They are 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 transducers (low pressure type)
These transducers measure the suction pressure in each
circuit. They are used to control EXV, evaporating pressure
(in heating mode) and monitor suction pressure safeties
related to the compressor operating envelope. Suction
pressure sensors are located on the common suction piping
of each circuit.
■ Air differential pressure transducers
These tranducers are used to estimate the airflow or to
control the building pressure by measuring the differential
pressure.
3.7 - Temperature sensors
Temperature sensors constantly measure the temperature of
various components of the unit, ensuring the correct operation
of the system.
■ Space temperature sensors
Up to two sensors may be used. They take into account
either an average space temperature or minimum and
maximum space temperatures, depending on the
configuration.
• Sensor T-55: This is a 10K sensor
• Optional sensor T-56: This 10K sensor is fitted with
:
- an offset slider to adjust the temperature setpoint.
Moving the slider to the left (cold) allows the
temperature setpoint to be reduced by as much as
3K and moving it to the right (warm) allows it to be
increased by up to 3K (in steps of ± 1K). When the
slider is in its central position there is no offset.
- a button for extending the occupied period from
one to four hours depending on the occupied
period extension value entered in the configuration
menu (see GENCONF menu).
• Optional sensor T-55: This 10K snesor is fitted with
a button for extending the occupied period.
• Optional room-mate comfort controller (sensor T-59):
This 10K sensor is fitted with :
• - a customised liquid crystal display (LLCD) that
indicates space temperature and setpoint offset.
• - an on/off function to start and stop the unit using
remote contacts.
- temperature offset adjustement which allows the
temperaturesetpointtobereducedbyasmuchas3K
and to be increased by as much as 3K.
- a button to extend the occupied period extension
value entered in the configuration menu (see
GENCONF menu).
■ Supply air temperature sensor
The control system uses this to maintain a constant space
temperature. This is a Carrier 10K sensor.
■ Return air temperature sensor
The control system uses this to calculate the fresh air rate
when using economizer with VAV option. This is a Carrier
10K sensor.
■ Outdoor air temperature sensor
This Carrier 5K system controls the economizer, allows the
gas heating stages to be used on the heat pumps and offsets
he space temperature setpoint where this is appropriate.
■ Water coil frost protection sensor
This Carrier 5K sensor is used on units fitted with hot-water
systems.
■ Defrost termination sensor
This sensor measures the common water temperature in the
master/slave system capacity control. Itisinstalled only inthe
case of master/slave units.
■ Defrost temperature sensors (heat pumps)
This Carrier 5K sensor is used by the defrost function on heat
pump units.
■ Air quality sensor
This sensor controls room air quality. It is an optional sensor
of the 0-10V d.c type.
3.8 –The controls
■ Electronic expansion valve (EXV)
The electronic expansion valve (EXV) is used to adjust the
refrigerant flow to changes in the operating conditions of the
machine. The high degree of accuracy with which the piston
is positioned provides precise control of the refrigerant flow
and suction superheat.
■ Indoor supply fan
The controller can start or stop the indoor fan thanks to the
time schedule. With VAV option, the indoor supply fan speed
is adjusted to fit the ventilation needs.
Two types of fan are compatible with the unit, sandard fan
or high static fan. They can be chhosen upon the field
environment.
■ Return fan
In some applications with high return duct ESP, a return fan
may be applied to help supply fan to maintain the airflow and
the buiding pressure.
■ Heaters
The controller can control additional heaters for cooling only
or heat pump unit. The additional heater can be electrical;
hot water coil or gas heater.
■ Pre-heaters
With the option, the unit can control 2 electrical pre-heaters,
if unit size < 125 and 3 if unit size >= 125.
■ Energy recovery module (ERM)
SmartVu can control an optional energy recovery module for
optimised energy management of the exhaust air.
■ High ambient fresh air option
With this option, the unit can control supply airflow% or
Fresh Air% according to OAT or SST values. It is working in
cooling mode, with economizer and without ERM.

10
4 –SMARTVU USER INTERFACE
4.1 - Touch screen display
SmartVu is a 4.3 in. 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 theuser).
▪ If the touch screen is not used for a while, the screen
will go black. 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.
4.2 - Home screen (synoptic view)
The home screen is the starting point of the controller. It is also
the first screen shown after starting the user interface.
Please note that the picture of the rooftop is for illustration only and it may differ from
the actual look of the chiller that is available on field. The image displayed on the
home screen represents the whole series of 48UC(V) / 50UC(V).
Legend:
1. Header buttons and subheader buttons
2. Equipment view
3. Information message box (see section 4.4)
The home screen allows you to monitor basic information about
the operation of the chiller and its working conditions.
4.3 –THR page
THR page is only available if THR circuit is configured.
Icon
Description
Fan: theimage isanimated when the fan is running.
The fan on the right is the supply fan and the values
below are the current supply airflow and SAT. The fan
on the left is return fan and the values below are return
airflow and RAT.
Outdoor Air Temperature (OAT): This parameter
is displayed only in case of units fitted with OAT
sensor.
Current freshair supply fan
RTU : It shows the total unit capacity. The image will
be in blue if the capacity is > 0 and in grey otherwise.
Circuit THR: It shows the circuit THR capacity. The
image will be in blue if the capacity is > 0 and in grey
otherwise.
Economizer damper: This image will appear if
economizer position is equal to 0.
Economizer damper: This image will appear if
economizer position is higher than 0.
4.4 - Information message box
The information displayed in the status bar at the bottom of the
screen includes relevant messages relatedtoactions takenby the
user.
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
5.8).
Outdoor Air Temperature (OAT): This
parameter is displayed only in case of
units fitted with OAT sensor.
Unit capacity: The gauge shows current
unit capacity.
Thermodynamic Energy Recovery (THR): Will
be printed if THR is configured. By clicking on
this button, the THR page will appear (See
section 4.3)
Circuits A, B and C: Will be printed depending
on the configured circuits
MESSAGE
STATUS
SUCCESS
Displayed when the requested action is executed.
INTERNAL
COMMUNICATION
FAILURE!
Displayedwhenthemainapplicationisnotrunning.
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.

11
4.5 - Header buttons
Button
Description
Home screen: Press the button to go to the Home screen.
Previsous screen: Press the button to go 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.
User Login menu: Used to login in to the controller in order to access higher configuration 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).
Alarm menu: Press the button to go to the Alarms menu.
The grey bell means there is currently no alarm active on the unit.
Theyellowringingbellmeansthatthereisapartialalarm(onecircuitaffectedbythealarm)orAlert(noaction
taken on theunit).
The red ringing bell means that the unit is affected by the alarm.
4.6 - Subheader buttons
* Please note that the letter inside the circuit icon stands for the circuit, i.e. "A" stands for circuit A, "B" stands for circuit B.
** Please note that the subheader buttons are only displayed from a PC browser.
Home
Previous screen
Main Menu
System Menu
User Login
Start / Stop
Alarms Menu
A
A
A

12
4 - SMARTVU USER INTERFACE
4.7 - Other buttons
Save button: Press the button to save the
modification.
Cancel button: Press the button tocancel the
modification.
Log in button: Press the button to log in at
specific access level.
Log off button: Press the button to log off.
Confirm button: Press the button to confirm
the modification.
Cancel button: Press the button tocancel the
modification.
Up button: Press the button to scroll up.
Down button: Press the button toscroll 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.
Refreshbutton: Pressthebuttontorefreshthe
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.
4.8 - Screen calibration
Thepurposeofscreencalibrationistomakesurethatthesoftware
acts correctly upon pressing icons on the user interface.
To calibrate the screen:
1. Press and hold anywhere on thescreen.
2. The calibration process will start.
3. Please follow instructions displayed on thescreen:
“Touch the target in (...) screen corner”
4.9 - Warning messages
Warning messages are used to inform the user that a problem
occurredandtherequestedactioncannotbecompletedsuccessfully.
Login failure
Ifthewrongpasswordisprovided,thefollowingwarningmessage
will be displayed:
“The password entered does not match any stored passwords”
■ Press OK and type the correct password (see section 5.8).
Saving modifications
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 OK to continue without saving the modification.
■ Press Cancel to come back to the current screen and then
save the modification with the Save button.
Right button: Press the button to go to the right.

5 –SMARTVU CONTROL: MENU STRUCTURE
13
5 - SMARTVU CONTROL: MENU STRUCTURE
5.1 - Main menu
Configuration menu
See section 5.2
Home
Previous screen
Main Menu
System Menu
User Login
Start / Stop
Alarms Menu
General Parameters
Parameters
Temperatures
Pressures
Inputs
Outputs
Run Times
Modes
Quick Test
Maitennance
Setpoint
Configuration
Configuration
Menu
Trendings
...
...
Main menu

14
5 - SMARTVU CONTROL: MENU STRUCTURE
TheMainmenuprovides accesstothemaincontrolparameters,
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 Homescreen.
■ Specificunitparameterscanbeaccessedbypressingtheicon
corresponding to the desired categorySMART
General parameters –GENUNIT
NOTE: The Trendings menu is displayed in form of a graph.
Formore information about Trendings, see section 6.26.
CAUTION: Since specific units may not include additional
features, some tables may contain parameters that cannot
be configured for a given unit.
Point Name
Status
Default
Unit
Description
Low
Limit
High
Limit
CCN Force
LEN Force
ctrl_typ
0 to 3
0
-
Local=0.
CCN=1.
Remote=2
0
3
blank
-
TSTAT=3
STATUS
CHARS8
0
-
Run Status
-
-
ALM
CHARS8
0
-
Alarm state
-
-
min_left
0 to 0
0
min
Minutes Left
for Start
0
0
HEATCOOL
CHARS8
0
-
Heat/Cool
status
-
-
HC_SEL
0 to 2
0
-
Heat/Cool
Select
0
2
X
X
SP_SEL
0 to 2
0
-
Setpoint
Select
0
2
X
X
blank
-
0=Auto.
1=Spt1.
2=Spt2
SP_OCC
NO_YES
1
-
Setpoint
Occupied?
0
1
X
ROOF_S_S
DSABLE_ENABLE
0
-
CCN: Cmd
Start/Stop
0
1
X
ROOF_OCC
NO_YES
0
-
CCN: Cmd
Occupied
0
1
X
SF
OFF_ON
0
-
Supply Fan
Relay
0
1
RF
OFF_ON
0
-
Return Fan
Relay
0
1
SF_ERR
OFF_ON
0
-
Air Flow OK
0
1
cap_t
0 to 0
0
%
Percent
Total
Capacity
0
0
capa_t
0 to 0
0
%
Circuit A
Capacity
0
0
capb_t
0 to 0
0
%
Circuit B
Capacity
0
0
capc_t
0 to 0
0
%
Circuit THR
Capacity
0
0
sp
0 to 0
0
°F
Current
Setpoint
0
0
CTRL_PNT
-4 to 153
0
°F
Control
Point
-4
153
X
EMSTOP
DSABLE_ENABLE
0
-
Emergency
Stop
0
1
X
DEM_LIM
0 to 100
0
%
Active
Demand
Limit Val
0
100
X
M_SLAVE
0 to 2
2
-
CCN master
slave
command
0
2
X
Temperatures –TEMP

15
5 - SMARTVU CONTROL: MENU STRUCTURE
Point Name
Status
Default
Unit
Description
Low Limit
High
Limit
CCN Force
LEN Force
SPT
0 to 0
0
°F
Space
Temperature
0
0
spt_1
0 to 0
0
°F
Space
Temperature 1
0
0
spt_2
0 to 0
0
°F
Space
Temperature 2
0
0
sto
0 to 0
0
^F
Space
Temperature
Offset
0
0
SAT
0 to 0
0
°F
Supply Air
Temperature
0
0
OAT
0 to 0
0
°F
Outside Air
Temperature
0
0
RAT
0 to 0
0
°F
Return Air
Temperature
0
0
XAT
0 to 0
0
°F
Mixed Air
Temperature
0
0
LWT
0 to 0
0
°F
Leaving Water
Temp.
0
0
SCT_A
0 to 0
0
°F
Saturated
Condensing T A
0
0
SST_A
0 to 0
0
°F
Saturated
Suction Temp A
0
0
SUCT_A
0 to 0
0
°F
EXV Suction
Temp A
0
0
DEFRT_A
0 to 0
0
°F
Defrost
Temperature A
0
0
SCT_B
0 to 0
0
°F
Saturated
Condensing T B
0
0
SST_B
0 to 0
0
°F
Saturated
Suction Temp B
0
0
SUCT_B
0 to 0
0
°F
EXV Suction
Temp B
0
0
DEFRT_B
0 to 0
0
°F
Defrost
Temperature B
0
0
SCT_C
0 to 0
0
°F
Saturated
Condens T THR
0
0
SST_C
0 to 0
0
°F
Saturated
Suction T THR
0
0
SUCT_C
0 to 0
0
°F
EXV Suction
Temp THR
0
0
DEFR_C
0 to 0
0
°F
Defrost
temperature
THR
0
0
SH_A
0 to 0
0
^F
Superheat
Temp A
0
0
SH_B
0 to 0
0
^F
Superheat
Temp B
0
0
SH_C
0 to 0
0
^F
Superheat
Temp THR
0
0

16
5 - SMARTVU CONTROL: MENU STRUCTURE
Pressures –PRESSURE
Point Name
Status
Default
Unit
Description
Low Limit
High Limit
CCN Force
LEN Force
DP_A
0 to 0
0
PSI
Discharge
Pressure A
0
0
SP_A
0 to 0
0
PSI
Main
Suction
Pressure A
0
0
DP_B
0 to 0
0
PSI
Discharge
Pressure B
0
0
SP_B
0 to 0
0
PSI
Main
Suction
Pressure B
0
0
DP_C
0 to 0
0
PSI
Discharge
Pres THR
0
0
SP_C
0 to 0
0
PSI
Main
Suction Pres
THR
0
0
sf_ec_p
0 to 0
0
"H2O
Supply Fan
EC Plug
0
0
rf_ec_p
0 to 0
0
"H2O
Return Fan
EC Plug
0
0
p_plenum
0 to 0
0
"H2O
Return
Plenum
Pressure
0
0
p_bldg
0 to 0
0
"H2O
Building
Pressure
0
0
Inputs –INPUTS
Point Name
Status
Default
Unit
Description
Low Limit
High
Limit
CCN
Force
LEN
Force
onoff_sw
OPEN_CLOSE
0
-
Remote On/Off
Switch
0
1
SP_SW1
OPEN_CLOSE
0
-
Remote Setpoint
Switch 1
0
1
SP_SW2
OPEN_CLOSE
0
-
Remote Setpoint
Switch 2
0
1
lim_sw1
OPEN_CLOSE
0
-
Limit Switch
0
1
HS_FBK
OPEN_CLOSE
0
-
Heat Stages status
0
1
PRE_HS
OPEN_CLOSE
0
-
Pre-heat Status
0
1
sf_err
OPEN_CLOSE
0
-
Supply fan Status
0
1
rf_err
OPEN_CLOSE
0
-
Return fan Status
0
1
vspd_err
OPEN_CLOSE
0
-
VSPD Inverter Status
0
1
FIRE
OPEN_CLOSE
0
-
Fire Status
0
1
ENT_SW
LOW_HIGH
0
-
Enthalpy Switch
0
1
REF_LEAK
OPEN_CLOSE
0
-
Refrigerant Leak
Status
0
1
blank
-
Thermostat :
G
OPEN_CLOSE
0
-
Fan Contact
0
1
Y1_W2
OPEN_CLOSE
0
-
CP #1 / Heat #2
Contact
0
1
Y_Y2
OPEN_CLOSE
0
-
CP / CP #2 Contact
0
1
W_W1
OPEN_CLOSE
0
-
Heat / Heat #1
Contact
0
1
O_W2
OPEN_CLOSE
0
-
Heatcool / Heat #2
Ctact
0
1
blank
-
Air Control :
dirt_flt
OPEN_CLOSE
0
-
Dirty Filter
0
1
iaq
0 to 0
0
ppm
Indoor Air Quality
0
0
RH
0 to 0
0
V
Relative Humidity
0
0
hrw_fbk
OPEN_CLOSE
0
-
HR Wheel Feedback
0
1
hpsw_a
OPEN_CLOSE
0
-
High Pressure Switch
A
0
1

17
5 - SMARTVU CONTROL: MENU STRUCTURE
hpsw_b
OPEN_CLOSE
0
-
High Pressure Switch
B
0
1
hpsw_c
OPEN_CLOSE
0
-
High Pressure Switch
THR
0
1
exvA_fbk
0 to 0
0
%
EXV Position Circuit
A
0
0
exvB_fbk
0 to 0
0
%
EXV Position Circuit
B
0
0
exvC_fbk
0 to 0
0
%
EXV Position Circuit
THR
0
0

18
5 - SMARTVU CONTROL: MENU STRUCTURE
Outputs –OUTPUTS
Point Name
Status
Default
Unit
Description
Low Limit
High
Limit
CCN Force
LEN Force
cp_a1
OFF_ON
0
-
Compressor A1
0
1
cp_a2
OFF_ON
0
-
Compressor A2
0
1
VSPD_SPD
0 to 100
0.0
%
VSPD speed
0
100
X
X
vspdsafe
OFF_ON
0
-
VSPD safety
contact
0
1
fan_l_a
OFF_ON
0
-
Fan A1 Speed
0
1
fan_h_a
OFF_ON
0
-
Fan A1 Speed
0
1
rv_a
OFF_ON
0
-
4Way
Refrigerant
Valve A
0
1
heater_a
OFF_ON
0
-
Drain Pan
Heater A
0
1
cp_b1
OFF_ON
0
-
Compressor B1
0
1
cp_b2
OFF_ON
0
-
Compressor B2
0
1
fan_l_b
OFF_ON
0
-
Fan B1 Speed
0
1
fan_h_b
OFF_ON
0
-
Fan B1 Speed
0
1
rv_b
OFF_ON
0
-
4Way
Refrigerant
Valve B
0
1
heater_b
OFF_ON
0
-
Drain Pan
Heater B
0
1
cp_c1
OFF_ON
0
-
THR
Compressor 1
Output
0
1
cp_c2
OFF_ON
0
-
THR
Compressor 2
Output
0
1
rv_c
OFF_ON
0
-
4Way Refrig
Valve THR
0
1
ecopos
0 to 0
0
%
Economizer
Position
0
0
gas_on
OFF_ON
0
-
Modulated Gas
Enable
0
1
gas_v
0 to 0
0
%
Modulated Gas
Value
0
0
WV
0 to 0
0
%
Water Valve
0
0
humid
OFF_ON
0
-
Humidifier
Output
0
1
dehumid
OFF_ON
0
-
Dehumidifier
Output
0
1
pexhaust
OFF_ON
0
-
Power Exhaust
0
1
fire_dmp
OFF_ON
0
-
Fire Damper
0
1
hs_step
0 to 0
0
-
Additional Heat
Stage
0
0
alarm
OFF_ON
0
-
Alarm Relay
Status
0
1
RUNNING
OFF_ON
0
-
Running Relay
Status
0
1
hrw
OFF_ON
0
-
Heat Recovery
Wheel
0
1
vlt_en
OFF_ON
0
-
Supply Fan
Enable
0
1
vlt_rf
OFF_ON
0
-
Return Fan
Enable
0
1
cur_spd
0 to 0
0
%
Current S Fan
Speed
0
0
cur_spd2
0 to 0
0
%
Current R Fan
Speed
0
0
cur_airf
0 to 0
0
KGPH
Current Supply
Airflow
0
0
cur_air2
0 to 0
0
KGPH
Current Return
Airflow
0
0
freshair
0 to 0
0
%
Fresh Air Rate
0
0
exv_a
0 to 0
0
%
EXV Position
Circuit A
0
0