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.