11
Solutions for AHU
Belluno, ITALY
22
Index
Applications AHU applications
Hardware Hardware, technical details and AHU application
Software Software, functionalities & regulations for AHU units
Website Integrated website, purpose & functionalities
Sensors Complete range of solutions
Technical details Technical details and main regulations
Applications AHU Applications
44
Applications AHU Basic
Case type for a basic AHU
• Full fresh air unit• Heating & cooling• Modulating ventilation• Managed with supply probe
Heating coil
Cooling coil
Supply ventilation
Supply management mode
55
Applications AHU Supply + Return
Case type for a double flow AHU
• Double flow unit with supply & return fans• Heating, cooling and post-heating• Steam humidification• Mixing chamber• Modulating ventilation for supply and return fans• Managed with return probes
Return management mode
Return ventilation
Mixing chamber
Heating coil
Cooling coil
Steam humidification
Post heating coil
Supply ventilation
66
Applications AHU with Recovery System
Case type for AHU with recovery
• Double flow unit with supply & return• Complete psychrometric management• Dehumidification with dedicated resources• Modulating steam humidification• Mixing chamber management• Heat recovery management• Modulating ventilation for supply and return fans• Management with return probes
Return management mode
Return ventilation
Mixing chamber
Heat exchanger
Heating coil
Dehumidification resource
Modulating humidifier
Electrical heater
Supply Ventilation
Maximum power management
HardwareCharacteristic and application on the AHU solutions
88
Hardware
• 2 Different formats HW (4 e 10 DIN)• 2 Different sizes expansion modules• Disconnectable female terminals with
screw/bayonet connections • 32 bit - 200MHz processor• Up to 128 MB memory• High Connectivity (RS485, LAN,
CAN, TCP/IP, Bacnet, USB)• Integrated website• IEC 61131 Based
iProGENIUS & Visograph
99
Hardware
IPG208D 4DIN RS485 Slave – LAN – USB – Web server embeddedDisconnectable connectorsAI:6 – AO:4 – DI:11 – DO:8
IPG215D 10DINRS485 M/S – CAN – LAN – USB – ETH – Web server Disconnectable connectorsAI:10 – AO:6 – DI:20 – DO:15
IPX206D 4DINCAN – LAN Disconnectable connectorsAI:7 – AO:3 – DI:3 – DO:6
IPX215D 10DINCAN – LANDisconnectable connectorsAI:10 – AO:6– DI:20 – DO:15
Benefits
Wide range of hardware to be selected according to the application
High level of connectivity
Easier update of the application
Data download on USB keys
Reduced set-up times
Takes up little space
1010
Hardware
Benefits
High versatilityFrom 29 to 153 I/O
The software iscompatible with more than one hardware to build up a specific unit
Up to:30 connectable probes60 digital input18 analogic output45 digital output
The iPro hardware available for AHU applications allows an high flexibility
I/O
Flexibility
AIDI
AODO
1111
Hardware
Benefits
Remote HMI available in LCD or Touch
Remote keyboard with dedicated AHU interface
Up to 2 connectablekeyboards
Same interface for boththe electric panel and the room mounting
User Interface
• Mounting up to 100m far from the controller • LCD or Touch display• Upload and Download of the keyboard by USB or Visokey• Easy and smart use
SoftwareSoftware, functionalities & regulations of AHU units
1313
Software
With the AHU application you can manage all the units according to your customer needs
• Accurate management of temperature and humidity• Advanced features for the ventilation management• Air quality and filtration management• Energy saving features
AHU RegulationBenefits
Easy configuration of the unit
Advanced management of psychrometrictreatments
Some of the functionsdedicated to the building are integrated on the software
1414
Software
• Temperature and humidity regulation is managed by supply or return probes
• Automatic heating/cooling management mode • Temperature only or humidity only mode for specific
applications• Boost function for a quick set up• Control on the maximum power supplied• Maintenance regulation function to maintain the conditions
(defined by the user) when the unit is not active • Scheduler
Benefits
Resource optimization for an higher efficiency of treatments
Special applications are possible without additional controls
Servo-control output may feature different equalizations
The application includes the scheduler to organize operation of the unit
Thermo-hygrometric managements
1515
Software
Benefits
3 different regulations for adiabatic humidification and evaporative cooling
Level indicators, floating, washing cycles and humidifiers drains management
Spray nozzle humidification without additional controllers
Highly customizable dehumidification mode
Main humidity regulations
• Humidification with steam producer management• Adiabatic humidification management • Different solutions to manage the humidifiers drain• Humidification by spray nozzle with variable flow rate • Integrated dehumidification with cooling features and/or
dedicated resources such as subcooled water coil or desiccant wheel
1616
Software
Benefits
3 different ways to compensate ventilation
Possibility to regulate the return fan according to the supply fan management
Air speed probe to be used on fans without pressure drops
Reduced energy consumption for air quality control
Main ventilation managements
• Supply and return fans management • Double or single fan sections• Double relief fan management• Fans Modulation by flow rate control, or pressure or fixed speed• High flow rate determined by differential pressure or speed
probes• Air quality monitoring • Different solutions for the fan compensation (thermoregulation,
air quality or external probe)
1717
Software
Benefits
Easy commissioning and field tests
Reduction of the number of auxiliary devices to manage the plant
Quick set up and evaluation assessment
Possibility to sign contracts with the customer to schedule normal AHU maintenances
Ancillary Managements
• «Manual» mode to test each single resource individually• Production fluids activation for the plant side• Each single resource can manage its own circulator• Filtration control • Smart configuration with dedicated alarms for wrong
parametrization • Detailed alarm management for a quick maintenance • Working hours management by resource
1818
• Interface easy to use • All the information related to the AHU are displayed on
the HMI • AHU configurable from the keyboard• LOG alarm management• Function menu protected by different levels of password
Benefits
Easy management of the unit through HMI
Safety credentials are integrated on the unit, to prevent an incorrect use of the machine
The unit can be password-protected in case of public installations
Software User Interface
Sito WEBIntegrated Website, purpose & functionalities
2020
• Easy and intuitive configuration with Wizard• Remote control and supervision of the unit• Remote access for control and maintenance
Benefits
Quick and easy configuration of the unit
Website used as a graphic remote interface for the unit
Remote supervision
Web site Embedded web site
The iPro controller has an integrated website with a configurable IP address
2121
Web siteStandard functions available on the website
• Dashboard: unit visualization and main features
• Setpoint: set point visualization and modification
• Alarms: activated alarms and alarm log
• Scheduler: visualization and parametrization of the unit scheduler
• I/O: visualization of I/O status
• Wizard: interactive configuration of the unit
• Password: set up of login credentials
2222
Web siteInteractive Configuration
Graphic and interactive unit configuration, to speed up the parametrization times, to simplify the use of the application and to avoid errors
• Guided graphic creation of the unit• Guided parametrization of the unit• Check on the configuration before saving
Benefits
The website graphic allows a more realistic pictures of the functions in use
Possibility to add/remove resources during the configuration
Only the parameters needed for a defined AHU are displayed
Reduction of configuration errors
SensorsA complete range of solutions
2424
Sensors
Temperature & Humidity
• Complete range of probes for the measurement of temperature and humidity
• Duct, wall or industrial installations• Wide range of measurement
Pressure• Industrial mounting• High precision• Measurement range can be selected by the user• Output calibration
Air Quality• High quality probe for the CO2 measurement• Duct, wall installations• Range 0-2000 ppm
Air Speed• Duct Installation• Accurate measurement dedicated to the air flow rate
calculation • Selectable measurement range
2525
SensorsTemperature & humidity probes
StandardVersion: Duct, OEM’s and
industrialOutput: 4÷20mARange: -40T60°C o -5T55°C
10÷90%RHProtection: IP65Connection : 2 wiresSupply: 11÷35VDC
Sensor tested according to automotive standard AEC-Q200With inspection certificate according to DIN EN10204 - 3.1
WallVersion: Wall Output: 4÷20mARange: -5T55°C
10÷95%RHProtection : IP30 with optional
display Connection: 2 wiresSupply: 10÷28VDC
With inspection certificate according to DIN EN10204 - 2.2
StemVersion: Stem with cableOutput: NTC 10K @25°C
temperature4÷20mA humidity
Range: -50T110°C0÷100%RH
Protection: IP65Connection: 3mt wireSupply: 9÷28VDC
2626
SensorsPressure probes & switches
Version: Industrial MountingOutput: Digital contact NC o NO
Selectable switch pointProtection: IP54
2m PVC tube and mounting kitConnection: 2 wiresSwitch: 5A (250VAC) resistive load
or 4A (30VDC) resistive
Pressure transducers Pressure Switch
Version: Industrial MountingOutput: 4÷20mARange: SelectableProtection: IP54Connection: 2 wires / 2m PVC tube Supply: 8÷33VDC
2727
SensorsAir quality probes
Measurement of CO2 concentration
Benefits
Check on air quality status
Air quality probe management already integrated on the AHU application
Air quality probes to reduce energy consumption maintaining an high comfort
With inspection certificate according to DIN EN10204 - 2.2
Version: Duct or wallOutput: 4÷20mA Range: 0-2000 ppmProtect Selectable IP30Connection: 4 wiresSupply: 24VAC/DC
2828
SensorsAir speed probes
Air Speed Probe
Benefits
The air speed probe can be used instead of the pressure transducer to calculate the air flow rate
The air speed probe can be used when fans can not mount pressure pipes with a transducer
Calculation with the air speed value integrated on the application
With inspection certificate according to DIN EN10204 - 2.2
Version: Duct mounting Output: 4÷20mA Range: Selectable (max 20m/s)Protection: IP65Connection: 3 wiresSupply: 24VAC/DC
Technical detailsTechnical Details and Main regulations
3030
Technical details
The heating treatment is available by using different resources with several regulations
MIX
ING
CH
AMB
ER
HEA
T R
ECO
VERY
HEA
TIN
G
HEA
TIN
G/C
OO
LIN
G C
OIL
POST
-HEA
TIN
G
Heating configurations
3131
Technical details
The cooling treatment is available by using different resources with several regulations
Cooling configurationsM
IXIN
G C
HAM
BER
HEA
T R
ECO
VERY
CO
OLI
NG
/HEA
TIN
G C
OIL
CO
OLI
NG
3232
Technical details
The humidification treatment requests the use of different kind of humidifiers
Humidification configurationsPE
VAPO
RAT
IVE
PAN
EL
PAN
EL W
ITH
REC
YCLI
NG
ISO
TER
MAL
WIT
H S
TEAM
SPR
AY N
OZZ
LE
3333
Technical details
The dehumidification treatment is possible with a dedicated resources and with the integration of different resources already selected for the cooling function
Dehumidification configurations
DED
ICAT
ED D
EHU
MID
IFIC
ATIO
N R
ESO
UR
CE
CO
OLI
NG
RES
OU
RC
E
CO
OLI
NG
/HEA
TIN
G R
ESO
UR
CE
3434
Technical details
Fans are managed by air flow rate by pressure and by fixed speed for both supply and return flow
Ventilation configurations
DO
UB
LE F
AN
SIN
GLE
FAN
DO
UB
LE R
ELIE
F FA
N
3535
Heating Humidification
Dehumidification Cooling
Technical details
The regulation selects the proper treatments to reach the thermoregulation setpoint, according to the resources installed and their availability and according to the psychrometric conditions measured by humidity and temperature probes.In this way we reach the best result possible for the AHU
Treatments for regulation
3636
THANK YOU!
Dixell reserves the right to alter its products without notice. All rights reserved.Because environmental conditions are outside of Dixell’s control, we cannot assume
liability for results obtained or any damages which may occur due to improper application.
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